24 Ratios
Rane Model DC 24 动态控制器说明书
DC 24DYNAMIC CONTROLLERData Sheet-1General DescriptionThe Rane Model DC 24 Dynamic Controller is a two chan-nel Compressor, Limiter, Expander Gate system with very un-usual attributes. The DC 24 offers unprecedented control of its operating parameters as well as a built-in 24 dB/octave Linkwitz-Riley Crossover which gives it very impressive capabilities.Total freedom from control interaction highlight the DC 24 as well as the availability of separate Compressor and Limiter controls. The Compressor offers control over both Ratio and Threshold, while the Limiter allows setting a separate Threshold. In doing this, the DC 24 allows the operator to create a smooth transition between subtle compression over a wide dynamic range and peak-stop limiting at the sound system’s highest allow-able level. If that’s not enough, the DC 24 also offers indepen-dent Expander/Gate Ratio and Threshold controls. This third level of signal manipulation makes the DC 24 a most useful and revolutionary device.Attack and release times are automatic and program depen-dent. This simplifies use of the DC 24, as these subtle controls can confuse most users. History has proven that experienced compressor users rarely miss these controls after using a DC 24.The internal Crossover allows the DC 24 to operate as a two-way speaker dividing network along with all of the dy-namic characteristics of a fully featured Compressor Limiter. In addition to this application, the DC 24 supplies the necessary circuitry to allow the unit to divide a single channel of audio information in two separate frequency ranges and to then re-combine the program material into one Channel. Using the DC 24 in this way eliminates the pumping and breathing associated with compression and limiting when only one Channel is used to cover the entire audio spectrum.Refer to “The DC 24 User’s Guide,” on the Rane website, for an easy-to-understand guide of operation and applications.Features• Ratio & Threshold Controls for Compressor and Gate/Expander • Limiter Threshold Controls• Program Dependent Attack & Release• Linkwitz-Riley Crossover with 24 dB per Octave Slopes • Low-High Crossover Mode (1 In/2 Out)• Bandsplit Combine Mode (1 In/1 Out)• Stereo/Dual Modes (2 In/2 Out)• Side Chain Insert Jacks• Balanced XLR & ¼" TRS Connectors • -10 dBV / +4 dBu Gain Switch• UL/CSA Remote Power Supply (120 VAC)• CE (Low Voltage & EMC) Remote Power Supply (230 VAC)DATA SHEETDC 24DYNAMIC CONTROLLERData Sheet-2Parameter Specification Limit Units Conditions/CommentsCompressor..........Threshold Range -50 to +205dB ..........Ratio Range 1:1 to 10:110%Expander / Gate..........Threshold Range -50 to +105dB ..........Ratio Range 1:1 to 20:110%Limiter..........Threshold Range -20 to +202dBCrossover ..........Type Linkwitz-Riley 4th-order 24 dB per octave slopes..........Range 70 Hz to 7 kHz5%41-detent continuously variable pot Inputs: Type Active Balanced / Unbalanced ..........Connectors XLR & + ¼" TRS ..........Impedance20k 1%Ω..........Maximum Level +201dBuOutputs: Type Active Balanced ..........Connectors XLR & + ¼" TRS ..........Impedance1001%ΩEach output ..........Maximum Level +261dBu 2 kΩ or greater +201dBu 600 Ω or greaterOverall Gain Range -12 to +12±1dB Center detent unity gainRFI FiltersYes Passive Bypass SwitchYes LED Thresholds: Overload +221dBu Output or any internal level ..........Signal Present -403dBu Input LevelFrequency Response 20 Hz to 20 kHz +0/-.5dB THD+Noise0.05.01%+4 dBu, 1 kHzIM Distortion (SMPTE)0.1.01%60 Hz / 7 kHz, 4:1, +4 dBuSignal-to-Noise Ratio 1082dB Unity Gain re +20 dBu, 20 kHz BW 922dBUnity Gain re +4 dBu, 20 kHz BW Unit: Agency Listing ..........120 VAC model Class 2 Equipment National Electrical Code UL & CSA Exempt Class 2 equipment ..........230 VAC model CE-EMC EMC directive 89/336/EECCE-SafetyExempt per art. 1, LVD 73/23/EEC Power Supply: Agency Listing Rane model RS 1Class 2 Equipment ..........120 VAC model UL File no. E88261CSA File no. LR58948..........230 VAC modelCE-EMC EMC directive 89/336/EEC CE-Safety LV directive 73/23/EEC ..........100 VAC model Built to JISJapan onlyPower Supply Requirement 18 VAC w/center tap 0.1Vrms Maximum Current 600mA RMS current from remote supply Unit: Construction All Steel..........Size 1.75"H x 19"W x 5.3"D (1U)(4.4 cm x 48.3 cm x 13.5 cm) ..........Weight 5 lb(2.3 kg)Shipping: Size 4.5" x 20.3" x 13.75"(11.5 cm x 52 cm x 35 cm)..........Weight 9 lb(4.1 kg)Note 1: 0 dBu=0.775 VrmsNote 2: Unless otherwise stated, all measurements made with Thresholds set at maximum, Ratios set at minimum.DC 24DYNAMIC CONTROLLERData Sheet-3Block DiagramArchitectural SpecificationsThe dynamic processor shall be a two (2) channel unit, each channel of which provides independent control over its gating, compression and limiting functions. The gating function shall provide a means for setting the gate threshold as well as the ratio of the function thus providing a means for gentler slopes to oc-cur such as one would expect to find in an expander.The compressor shall also provide a means for setting thresh-old and ratio independently. The limiter shall also provide a means for setting its operational threshold, but shall differ from the other two functions in that limit ratio shall be a function of limit level.All attack and release characteristics provided by the dynam-ic controller shall be a function of the current program material, thus providing a high level of transparency to the listener.The dynamic processor shall provide an active crossover circuit for the purpose of using the unit to drive amplifiers con-nected to two-way loudspeaker systems as well as for dividing a single channel audio source into two frequency bands for ulti-mate recombination at the outupts of the device. The crossover shall be a fourth-order Linkwitz-Riley type configuration.Passive bypass switches shall be provided to ensure total bypass of the unit’s active circuitry in the event of power failure. The inputs and outputs shall be active balanced/unbalanced designs terminated with XLR & ¼" TRS connectors. The side-chain send and receive connectors shall be ¼" unbalanced types, wired tip=send, ring=return.RFI filters shall be provided at the processor’s inputs. LEDs shall be provided to indicate the presence of an input signal as well as high level overload conditions.The unit shall be exempt from agency safety requirements and powered from a UL listed / CSA certified remote power sup-ply (120 VAC), or CE approved (230 VAC) via a rear panel input modular plug.The unit shall be entirely constructed from cold-rolled steel, and mount into a standard EIA relay rack occupying 1 rack space.The unit shall be a Rane Corporation Model DC 24.DC 24DYNAMIC CONTROLLERData Sheet-4All features & specifications subject to change without notice.DOC 107501Rear PanelAvailable Accessories • SC 1.7 Security Cover©Rane Corporation 10802 47th Ave. W., Mukilteo WA 98275-5098 TEL 425-355-6000 FAX 425-347-7757 WEB Application InformationTraditionally, a product such as the DC 24 has been referred to as a “Compressor / Limiter” because the range of the Ratio control on the Compressor has been wide enough to accommo-date both gentle compression and harder limiting effects. Not, however, simultaneously. One had to make a choice between the two modes of operation. On some models a Gate has been pro-vided which may or may not be part of the Compressor function.In the DC 24, all three functions of each channel are inde-pendent. Gating may occur when low-level signals are present, compression may occur when the level increases, and “peak-stop” limiting is available for high-level signals. This provides a three slope capability which is rather unique in the audio industry.Additionally, the DC 24 can help out a great deal on the low end of the amplitude spectrum by serving as a noise gate simul-taneously. The Compressor may be used to “tighten” vocals and instrumentals while leaving the Limiter function available for use as a safety valve.To accomplish this feat, the DC 24 provides three separate “Side Chains” in each Channel, each having its own set of front panel controls. For the Gate / Expander function, input signal is converted from an audio format to a control signal and ap-plied to the threshold circuit. If the output of the controller is below the specified threshold, it is passed along to the Gate / Expander Ratio control. The Ratio control allows attenuation of the controller to inhibit the slope of the Expander. After this at-tenuation, the control signal is delivered to the Channel’s control summing amplifier where it will meet similar signals generated by the Compressor control system.The Compressor controller works remarkably similarly to the Gate, the exception being the polarity. While the Gate circuit reduces gain when input level decreases below Threshold, the Compressor decreases gain when input increases above Thresh-old. The Compressor also receives the output of the controller, applies it to its threshold determinator, and passes the signalto the ratio attenuator if threshold conditions are satisfied. The output of the Ratio control is applied to the summing amplifier referenced in the gate section.Side Chain inserts have been provided on the rear of the unit to allow the insertion of an equalizer into the control circuits of the Gate and the Compressor. This will allow the user to create a frequency-dependent threshold for the Gate and/or the Compressor. This feature is useful when attempting to control sibilance in vocals.The Limiter operates in an entirely different manner than the preceding sections. The control circuit for the Limiter monitors the output of the VCA, not the input of the unit. Anytime the output of the VCA exceeds the Threshold set on the front panel, Limiting begins to take place. The ratio of the Limiter is set automatically and is a function of the excess level the system is attempting to deliver above the preset Threshold. The attack and release time of the Limiter is a function of the speed at which the input signal is attempting to drive the output of the unit above the Threshold level.The Crossover function of the DC 24 is based on Rane’s time-proven 4th-order state-variable Linkwitz-Riley design. This yields a 24 dB per octave slope and an in-phase characteristic. Since the outputs are in phase with each other, they recombine properly when the channel summing mode is selected via the rear panel Separate/Combine switch.In its band-split mode, the DC 24 allows separate processing of low frequencies and high frequencies; a mode which makes its operation all the more transparent. When the Crossover is used in conjunction with a two-way loudspeaker system, adequate driver protection may be ensured while providing a very flexible means of program manipulation.For a better view of the various operational modes, refer to “The DC 24 Users Guide” RaneNote, from the Rane website.。
财务指标的讲义
credit sales produce the receivables.)
Average # of days receivables outstanding = 365 / (A/R Turnover Ratio)
A common size income statement
Sales COGS SG&A PROFIT
Sales COGS SG&A PROFIT
Sales COGS SG&A PROFIT
1 $ 101,840 $ $ 78,417 $ $ 20,368 $
$
3,055 $
1 100.0%
77.0% 20.0%
b) Receivable Turnover Ratio Sales/(Average accounts receivable)
a) Inventory Turnover Ratio COGS/(Average inventory)
• Measures efficiency of firm in managing and selling inventory. • High ratio represent fewer funds tied up in inventories -- efficient management. • Inventory does not languish on shelves. • High turnover can also represent understocking and lost orders. • Low turnover can also represent legitimate reasons such as preparing for a
数学比例问题的英文
数学比例问题的英文全文共3篇示例,供读者参考篇1Title: Solving Mathematical Ratio ProblemsIntroduction:Mathematical ratio problems are a common type of question in mathematics that involves comparing the sizes of two or more quantities. Understanding ratios and being able to solve ratio problems is an important skill in various fields such as finance, science, and engineering. In this guide, we will explore the basics of ratios, different types of ratio problems, and strategies for solving them.Basics of Ratios:A ratio is a way of comparing the sizes of two or more quantities. Ratios can be expressed in different forms, such as using the ":" symbol or as a fraction. For example, the ratio of apples to oranges in a fruit basket could be written as 3:2 or 3/2. Ratios can also be simplified by dividing both parts of the ratio by a common factor.Types of Ratio Problems:There are different types of ratio problems that can be encountered, including comparison of ratios, ratio problems involving fractions, and problems with missing values. In comparison problems, you may be asked to compare two different ratios and determine which is larger. Ratio problems involving fractions require converting the fractions into ratios and performing the necessary calculations. Problems with missing values involve finding the missing quantity in a ratio given the other quantities.Strategies for Solving Ratio Problems:1. Identify the quantities involved in the ratio problem and write them down.2. Determine the type of ratio problem and what is being asked (e.g., comparison, fraction conversion, missing value).3. Set up an equation based on the information given in the problem.4. Solve the equation to find the answer.5. Check your answer by verifying that it makes sense in the context of the problem.Example Problem:Tom has 3 red marbles for every 5 blue marbles. If he has a total of 24 marbles, how many red marbles does Tom have?Solution:1. Write down the given information:- Ratio of red marbles to blue marbles: 3:5- Total number of marbles: 242. Set up the equation using the ratio:3x + 5x = 248x = 24x = 33. Calculate the number of red marbles:3 * 3 = 9 red marbles4. Check the answer:Tom has 9 red marbles and 15 blue marbles, which adds up to a total of 24 marbles.Conclusion:Understanding ratios and being able to solve ratio problems is an essential skill in mathematics. By following the strategies outlined in this guide, you can successfully tackle ratio problems of varying complexity. Practice solving different types of ratio problems to improve your skills and gain confidence in working with ratios.篇2Title: Understanding Mathematical Ratio ProblemsIntroductionMathematical ratio problems are a common type of question encountered in various fields such as science, finance, and everyday life. Ratios are used to compare two or more quantities by expressing their relationship in terms of a fraction. In this document, we will explore the fundamentals of ratios, how to solve ratio problems, and the different applications of ratios in real-life situations.Understanding RatiosA ratio is a comparison of two quantities or values. It is usually written in the form of a fraction, with a colon (:) or as as "x to y". For example, a ratio of 2:3 means that for every 2 units of one quantity, there are 3 units of another quantity. Ratios canalso be expressed in decimal form, percentage form, or as a proportion.Solving Ratio ProblemsThere are various types of ratio problems, such as finding an unknown quantity in a given ratio, comparing ratios, and applying ratios to solve real-world problems. To solve a ratio problem, it is important to understand the relationship between the quantities involved and use the appropriate method to find the solution. Some common methods for solving ratio problems include cross-multiplication, unitary method, and proportions.Applications of RatiosRatios are used in many real-life situations to make comparisons, predictions, and calculations. Some common applications of ratios include:- Financial ratios: used by businesses to analyze their performance and make decisions- Scientific ratios: used in experiments and research to compare data- Engineering ratios: used in designing structures and machines- Cooking ratios: used in recipes to measure ingredients correctlyConclusionMathematical ratio problems are an essential aspect of mathematics that is used in various fields and everyday activities. By understanding the fundamentals of ratios, how to solve ratio problems, and their applications, individuals can improve their problem-solving skills and make better-informed decisions in different situations. Mastering ratio problems can enhance mathematical proficiency and analytical abilities, providing a solid foundation for success in academic and professional endeavors.篇3Title: Understanding Mathematical Proportion ProblemsIntroductionIn mathematics, proportion refers to the relationship between two quantities in terms of their relative sizes. This concept is fundamental in various mathematical operations, including algebra, geometry, and arithmetic. Understanding proportions is crucial as it helps in solving real-life problems involving quantities, ratios, and scaling. In this article, we willexplore the basics of mathematical proportion problems and discuss different strategies for solving them effectively.Basic Concepts of ProportionsIn a proportion problem, we have two sets of equal ratios. For example, if we have the proportion a/b = c/d, it means that the ratio of a to b is equal to the ratio of c to d. In other words, the two fractions a/b and c/d are equivalent. Proportions are usually represented in the form of fractions, where the two ratios are separated by an equal sign.Solving Proportion ProblemsThere are various ways to solve proportion problems, depending on the given information and the context of the problem. One common method is cross multiplication, where we multiply the extremes and means of the two ratios to find the missing value. For example, if we have the proportion 2/3 = x/9, we can cross multiply to get 2*9 = 3*x, which simplifies to 18 = 3x, and x = 6.Another method for solving proportion problems is by setting up and solving a proportion equation. For example, if we have a proportion problem involving a recipe that requires 3 cups of flour for every 5 cups of sugar, and we want to know howmany cups of flour are needed for 10 cups of sugar, we can set up the proportion 3/5 = x/10 and solve for x to get x = 6 cups of flour.Applications of ProportionsProportions are widely used in various real-life scenarios, such as in cooking, business, and engineering. For example, proportions are essential in scaling recipes to make more or less food, calculating discounts and sales prices in retail, and designing structures and machines in engineering.In cooking, proportions are crucial for maintaining the right balance of ingredients in a recipe. If the proportions are not correct, the taste, texture, and consistency of the dish may be compromised. For example, if a recipe calls for 2 teaspoons of salt for every 1 pound of meat, using too much or too little salt can significantly impact the flavor of the dish.In business, proportions are used to calculate discounts, markups, and profit margins. Understanding proportions helps business owners and managers make informed decisions regarding pricing, sales, and inventory management. For example, if a retailer offers a 20% discount on a product that originally costs $50, the discounted price can be calculated using proportions to determine the final cost to the customer.In engineering, proportions play a crucial role in designing structures, machinery, and systems. Engineers use proportions to scale drawings, calculate dimensions, and maintain the balance between different components of a design. For example, when designing a bridge, engineers need to ensure that the proportions of the supporting beams, cables, and foundation are balanced to bear the weight of the structure safely.ConclusionProportion problems are an essential aspect of mathematics that applies to various fields and disciplines. Understanding proportions helps in solving real-life problems involving quantities, ratios, and scaling. By mastering the concepts and strategies for solving proportion problems, one can enhance their mathematical skills and apply them effectively in different situations.通过深入研究数学比例问题,我们可以更好地理解数量、比率和缩放。
2010-03-24 Thin cap documentation (for internal discussion)
China‟s Thin Cap Regulations
Introduction to Thin Cap Regulations
• The prescribed debt / equity ratio is set at - 5:1 for enterprises in the financial industry - 2:1 for enterprises in the non-financial industries
China‟s Thin Cap Regulations
Adjust the difference between the Client and its related party(ies)
Introduction to Thin Cap Regulation
• • • •
China Corporate Income Tax (“CIT”) Law Article 119 of Implementation Regulation of the CIT (“IDR”) Circular Cai Shui [2008] No. 121 Circular Guo Shui Fa [2009] No. 2
Assuming Interest rate is arm’s length.
Main Service Opportunity
Above Safe harbour or Not? If not
Interest expense is deductible in China
SAT考试备考数学题目24.Ratios, rates and proportions
考试复习LEVEL 31.Playing tennis Playing squash Energyexpenditurerate1,594 2,726 Oxygenconsumptionrate77 130 Fat burning rate 49 rThe table above lists average expenditure rates of playing tennis vs. playing squash based on a body weight of 55 kilograms. The ratio of each value in the tennis column to the corresponding value in the squash column is about the same throughout the table. Which of the following is closest to the fat burning rate r of squash?A. 27B. 29C. 83D. 85Correct answer: C2. Lea’s car travels an average of 30 miles per gallon of gas. If she spent $20.70 on gas for a 172.5 mile trip, what was the approximate cost of gas in dollars per gallon?A. $1.45 per gallonB.$3.40 per gallonC.$3.60 per gallonD.$5.75 per gallonCorrect answer: C3.Kavitha and Andrei are truck drivers for the Delightful Delivery Company,which services cities W, T, and Q.The distance from city W to city T is 48.5 miles.The distance from city T to city Q is 20 miles.The distance from city Q to city W is 36 miles.If Kavitha's truck and Andrei's truck travel at the same speed, and it takesAndrei 91 minutes to go from city W to city T, about how much time will it take Kavitha to travel from city W to city Q?A.19 minutesB.38 minutesC.68 minutesD.123 minutesCorrect answer: C4.Yasemin is using a sugar cookie recipe with a flour to sugar ratio of 11:6. Tomake one batch of cookies, 2.75 cups of flour are needed. If Yasemin would like to triple the recipe, which of the following best approximates how much sugar she will need?A.1.5 cupsB. 4.5 cupsC. 5 cupsD.15 cupsCorrect answer: B5. A certain high school geometry class is made up of freshmen and sophomores.The ratio of freshmen to sophomores in that class is 3:4. If thereare 12 sophomores in the class, what is the total number of students in the class?A.9B.16C.21D.28Correct answer: CLEVEL 41.The musical interval between two sounds is called an "octave" if the ratio of thesounds' frequencies is 2:1. The following table shows the names of the musical intervals between two sounds based on the ratios of the two sounds' frequencies. Name of the musical interval Ratio of two sound frequenciesMajor third 4:5Perfect fourth 3:4Perfect fifth 2:3Major sixth 3:5If a sound is played with a frequency of 480 Hz, and a second sound is played with a frequency of 800 Hz, what is the name of the musical interval between the two sounds?A.Major thirdB.Perfect fourthC.Perfect fifthD.Major sixthCorrect answer: D2.The "maximum occupancy" of a room is the total number of people who can be ina room without causing a fire hazard. In a large room, a Fire Safety Code statesthat the maximum occupancy is 1 person for every 7 square feet (fݐଶ). A college is hosting a concert in a hall that is 14,721 fݐଶ, and 1,000 people are expected to attend. According to the Fire Safety Code, approximately how many more people can attend the concert without causing a fire hazard?A.900 peopleB.1,000 peopleC.1,100 peopleD.2,100 people Correct answer: C3. A donut company makes cream-filled donuts using ଵସcup (c) of dough andଵଶtablespoon (tbsp) of cream per donut. The company decides to change their recipe to use 3 times the amount of cream for their "New Triple-Stuffed Donuts!" If the donut company's new recipe uses the same amount of dough per donut, what is the ratio of dough to cream needed to make 12 triple-stuffed donuts?A.1 c:3 tbspB. 1 c:6 tbspC. 2 c:3 tbspD.1 c:2 tbspCorrect answer: B4. A marine aquarium has a small tank and a large tank, each containing only red andblue fish. In each tank, the ratio of red fish to blue fish is 3 to 4. The ratio of fish in the large tank to fish in the small tank is 46 to 5. What is the ratio of blue fish in the small tank to red fish in the large tank?A.15:184B.10:69C.69:10D.184:15Correct answer: B5.Two leading brands of paper towels are on sale. Brand A has 6 rolls, eachwith 56 sheets, for $4.29. Brand B has 8 rolls, each with 48 sheets, for $5.99.Which of the following best describes the relationship between the cost per sheet of the two brands?A.The two brands cost the same amount per sheet.B.Brand B costs $0.003 more per sheet than Brand A.C.Brand A costs $0.003 more per sheet than Brand B.D.Brand B costs $0.03 more than Brand A.Correct answer: BLEVEL 21.Zhang Lei spent $20.00 during his last outing at the bowling alley. This included aone time shoe rental fee of $3.50. He spent the rest of the money on bowling a number of games. If it took Zhang Lei 45 minutes to bowl each game and hespent 2 hours and 15 minutes bowling, how much did it cost per game?A.$3.00B.$5.50C.$6.67D.$7.34Correct answer: B Level:22.Mr. Bumble delivers newspapers to his community every week. His routetakes 3 hours to complete. During the first 2 weeks of delivering newspapers, he traveled a total of 100 blocks. Mr. Bumble delivers newspapers for 50 weeks each year. How many blocks does Mr. Bumble travel delivering newspapers in 1 year?A.1 blockB. 4 blocksC.50 blocksD.2,500 blocksCorrect answer: D3.During a timed test, Alexander typed 742 words in 14 minutes. AssumingAlexander works at this rate for the next hour, which of the following bestapproximates the number of words he would type in that hour?A.53B.840C.3180D.44,520Correct answer: C4.A quilter wants to make the design shown above using the Golden Ratio.Specifically, he wants the ratio of the triangle heights A:B and B:C to eachequal 1.62. If the quilter makes the triangle height A=8 in, approximately how tall should he make triangle height C?A.3 inB. 4 inC. 5 inD.6 inCorrect answer: A5.Elena is conducting a study about the effects of toxins in the water on thehormones of fish. Elena surveys 350 male fish in a river and finds that 150 of the male fish have egg cells growing inside them. According to Elena's survey, what is the ratio of male fish with egg cells to male fish without egg cells in the river?A.3:4B.3:7C.4:5D.4:7Correct answer: A。
50个财务英语短语
50个财务英语短语财务不仅是国民经济各部门、各单位在物质资料再生产过程中客观存在的资金运动及资金运动过程中所体现的经济关系.更主要的是财产和债务.即资产和负债等。
下面是店铺给大家整理的财务英语短语.供大家参阅!财务英语短语:财务分析常用英语词组1. Acceptable products completed, percentage of 合格产品比率2. Accounting department 会计部门3. Ratios for analysis of accounting department关于会计部门的比率分析4.Role of accounting department 会计部门的角色5. Accounts payable 应付账款6.Days needed to pay 进行支付需要的天数7. Shrinking funding provided by (as symptom)accounts payable由应付账款提供的融资减少(症状)8.Auditing 审计9. Turnover of accounts payable 应付账款周转率10. Accounts receivable 应收账款财务英语短语:财务分析常用英语词组11. Collectibility of accounts receivable应收账款的可回收性12. Days needed to collect应收账款周转天数13. Increasing investment in (as symptom)accounts receivable在应收账款上的投资增加(症状)14. Overdue accounts receivable过期应收账款15. Accounts receivable as proportion of sales 应收账款占销售的百分比16. Accounts receivable and working capital 应收账款和营运资本17. Accrued interest应计利息18. Accrued liabilities应计负债19. Calculating计算20. Acquisition analysis并构分析财务英语短语:财务分析常用英语词组21. Asset analysis资产分析22. Brand analysis品牌分析23. Capacity analysis产能分析24. Cash flow analysis现金流分析25. Contractual issues related相关的合同事宜26. Legal issues related相关的法律事宜27. Fraud analysis欺诈分析28. Liability analysis负债分析29. Obtaining information for获得收购信息30. Patent analysis专利分析财务英语短语:财务分析常用英语词组31. Personal analysis人员分析32. Profitability analysis盈利能力分析33. Synergy analysis协同分析34. Types of acquisition analysis收购分析的类型35. Advertising广告36. Annualized pay reports年度工资报告37. Anticipation surveys预测调查38. Appraisal companies评估公司39. Arithmetic mean算术平均值40. Collections from sales of assets 从资产销售中回收的款项财务英语短语:财务分析常用英语词组41. Expensive assets昂贵的资产42. Increased return on assets资产上增加的回报43. Asset analysis (for evalution of acquisition targets)资产分析(评估收购目标)44. Assumption假设45. Automated ratio result analysis自动的比率分析结果46. Average collection period平均收款期47. Average delivery time平均送货时间48. Average equipment setup time设备平均调试时间49. Average interest rate eared获得的平均利率50. Average time to fill requested positions 完成特定员工招聘的平均时间。
The Competitive Saving Motive Evidence From Rising Sex Ratios and Savings Rates in China
NBER WORKING PAPER SERIESTHE COMPETITIVE SAVING MOTIVE:EVIDENCE FROM RISING SEX RATIOS AND SAVINGS RATES IN CHINAShang-Jin WeiXiaobo ZhangWorking Paper 15093/papers/w15093NATIONAL BUREAU OF ECONOMIC RESEARCH1050 Massachusetts AvenueCambridge, MA 02138June 2009The authors would like to thank Marcos Chamon, Avi Ebernstein, Lena Edlund, Roger Gordon, Ed Hopkins, Tatiana Kornienko, Justin Lin, Olivier Jeanne, Simon Johnson, Nancy Qian, Junsheng Zhang,and seminar participants at the NBER and various universities for helpful discussions, and John Klopfer,Lisa Moorman and Jin Yang for able research assistance. The views expressed herein are those of the author(s) and do not necessarily reflect the views of the National Bureau of Economic Research.© 2009 by Shang-Jin Wei and Xiaobo Zhang. All rights reserved. Short sections of text, not to exceed two paragraphs, may be quoted without explicit permission provided that full credit, including © notice, is given to the source.The Competitive Saving Motive: Evidence from Rising Sex Ratios and Savings Rates in China Shang-Jin Wei and Xiaobo ZhangNBER Working Paper No. 15093June 2009JEL No. D1,F3ABSTRACTWhile the high savings rate in China has global impact, existing explanations are incomplete. This paper proposes a competitive saving motive as a new explanation: as the country experiences a rising sex ratio imbalance, the increased competition in the marriage market has induced the Chinese, especially parents with a son, to postpone consumption in favor of wealth accumulation. The pressure on savings spills over to other households through higher costs of house purchases. Both cross-regional and household-level evidence supports this hypothesis. This factor can potentially account for about half of the actual increase in the household savings rate during 1990-2007.Shang-Jin WeiGraduate School of BusinessColumbia UniversityUris Hall 6193022 BroadwayNew York, NY 10027-6902and NBERshangjin.wei@Xiaobo ZhangInternational Food Policy Research Institute2033 K Street, NWWashington, DC 20006x.zhang@”… [A] surge in growth in China and a large number of other emerging market economies … led to an excess of global intended savings relative to intended capital investment. That ex ante excess of savings propelled global long-term interest rates progressively lower between early 2000 and 2005.That decline in long-term interest rates across a wide spectrum of countries statistically explains, and is the most likely major cause of, real-estate capitalization rates that declined and converged across the globe, resulting in the global housing price bubble.” Alan Greenspan, Wall Street Journal, March 11, 20091. IntroductionHigh savings rates in certain countries are said to be a major contributor to the recent housing price bubbles and the global financial crisis by depressing global long-term interest rate in the last decade (Greenspan, 2009). The Chinese national savings rate, at about 50 percent of GDP in 2007, has caught special attention. This savings rate is high in at least three senses. First, it is higher than most other countries, including East Asian countries that are already known to have high savings rates. Second, it is higher than in China’s own past: the gross domestic savings rate as a share of GDP rose by about 15 percentage points since 1990. Finally, it is higher than China’s already-high investment-to-GDP ratio. China’s household savings are approximately half of its national savings. (In 2007, the household savings as a share of the household disposal income was 30%).The purpose of this paper is to test a new hypothesis regarding household savings behavior using Chinese regional and household data. Before doing that, let us review existing explanations in the literature. The first is the life cycle theory (Modigliani, 1970, and Modigliani and Cao, 2004), which predicts that the savings rate rises with the share of working age population in the total population. This explanation doesn’t appear to be consistent with profile of savings at household level (Chamon and Prasad, 2008). The second explanation has to do with a precautionary savings motive in combination with a rise in income uncertainty, which is favored by Blanchard and Giavazzi (2005) and Chamon and Prasad (2008). The problem is that while both pension systems and the public provision of health care in China have been improved since 2003, household savings as a share of disposable income rose sharply during the same period. This time series pattern contradicts the precautionary motive theory. The third explanation is a low level of financial development. This has the same difficulty as the last explanation since the financial system is most likely more efficient today than a few years ago yet thesavings rate still rose. The fourth explanation is cultural norms. But cultural norms tend to be persistent, and therefore are unlikely capable of explaining the visible rise in the savings rate over the last two decades1.In this paper, we suggest that an alternative competitive saving motive may be at work: families with sons compete with each other to raise their savings rate in response to ever rising pressure in the marriage market. Competitive saving by these families spills over to greater savings by other families, possibly through raising the prices of non-tradable goods such as housing. The increased pressure in the marriage market comes from China’s rising sex ratio imbalance, which has made it progressively more difficult for men to get married. As far as we know, we are the first in the literature to propose this hypothesis as an explanation for a rising savings rate in China. Toward the end of the paper, we argue that the explanation is likely applicable to many other countries as well.We provide a series of evidence. First, across provinces, we show that the local savings rate tends to be higher in regions and years in which the local sex ratio (for the pre-marital age cohort) is higher. This continues to be true after we control for local income, social safety net, the age profile of the local population, and province and year fixed effects.Second, in recognition of possible endogeneity of and measurement error in local sex ratios, we employ instrumental variables where the local sex ratio for the pre-marital age cohort is shown to be linked to local financial penalties for violating family planning policies set more than a decade earlier (as Ebenstein, 2008, and Edlund et al, 2008, also document). With two-stage least squares estimation, the effect of local sex ratios on local savings rates remain positive and statistically significant. In fact, the point estimate1 We do not study corporate savings behavior in this paper. The Chinese corporate savings rate has risen sharply in recent years, accounting now for about half of the national savings rate (Kuijs, 2006). The corporate savings behavior is a separate puzzle to be explained. The existing explanation suggests that a combination of state-ownership and windfalls in resource sectors is the primary driver. (The government savings rate is relatively moderate and has turned negative in 2008-09.) We note, however, that a recent paper by Bayoumi, Tong and Wei (2009) discusses China’s corporate savings rate in a global context and casts doubt on the usual interpretation. Because corporate savings rates have been rising globally (Bates, Kahle, and Stulz, 2005; and IMF, 2005), it turns out that the Chinese corporate savings rate is only modestly higher than those of other countries (by2 percentage above the global average savings rate when comparing listed companies across countries). So differences in corporate savings are unlikely to be a big part of the cross country differences in national savings rates. Moreover, comparing corporate savings by Chinese firms of different ownership, in resource and non-resource sectors, Bayoumi, Tong and Wei (2009) do not find evidence that state-owned firms save more than private firms, or that the corporate savings rate is unusually high in resource sectors. This casts doubt on the notion that a high Chinese corporate savings rate is mainly a result of poor corporate governance and inefficiencies tied either to state-ownership or to windfalls in resource sectors.becomes larger. This suggests that an increasing imbalance in the sex ratio causes a rise in the savings rate.Third, we examine household data using household surveys that cover 122 rural counties and 70 cities. While households with a son typically save more than households with a daughter, we do not regard this per se as supportive evidence of our hypothesis, since other channels could account for this difference. Instead, the evidence that we find compelling is that savings by otherwise identical households with a son tend to be greater in regions with a higher local sex ratio. This is something clearly predicted by our hypothesis, but not by any other existing explanations. In addition, we find that savings by households with a daughter do not decline in regions with a high sex ratio, which is consistent with our interpretation that the savings pressure on households with a son spills over to other types of households. We discuss reasons that these patterns at the household level are unlikely to be the outcome of some selection in the data.Finally, we provide several supplementary pieces of evidence. We show that local housing values indeed tend to be higher in regions with a higher local sex ratio, even after taking into account local income. This is direct evidence that the competitive pressure on households with a son in the marriage market may trigger other households to save more just to cope with higher local housing costs. We also provide some evidence that household level savings rates tend to be linked to a wedding event in a family in a quantitatively significant way, and that a groom’s family tends to save more than a bride’s family in preparation for the wedding.We do not wish to claim that no combination of the existing explanations could contribute to a higher savings rate. Instead, we suggest a competitive saving motive as an additional explanation. The estimated effect of a rising sex ratio on the Chinese savings rate is economically significant, and can be projected to become even more important in the foreseeable future. Based on the point estimate (0.74) in the IV regression, a rise in the sex ratio for the pre-marital age cohort from 1.05 to 1.14 (which is actual increase in Chinese sex ratio for the age cohort of 7-21 from 1990-2007) would lead to a rise in the savings rate by 6.7 percentage points, which is 48% of the actual increase in the household savings rate. If we run separate regressions for rural and urban areas, we find that the elasticity of the local savings rate with respect to the local sex ratio is larger inrural areas than in urban areas. The increase in the rural sex ratio is estimated to account about 53% of the actual increase in the rural savings rate from 1990 to 2007.Because the sex ratio imbalance at birth has been increasing steadily since mid-1980s, the imbalance for the pre-marital age cohort will almost surely be higher over the next decade than in the last decade, even if the sex ratio at birth starts to be reserved soon. This implies that the incremental savings rate that is stimulated by the competitive savings motive will almost surely rise in importance in the near future.A high savings rate in a large economy is a significant contributor to global current account imbalances. Once one recognizes that the sex ratio imbalance is a structural factor behind a rising savings rate, it should be clear that a discussion of global imbalances that focuses narrowly on exchange rates or even social safety nets is incomplete. Furthermore, policy actions that improve the economic status of women could potentially reduce the sex ratio imbalance by reducing parental preference for sons (Qian, 2008). A change in the family planning policy that relaxes birth quotas could also reduce the imbalance. Because of their important implications for aggregate savings and current account imbalances, these changes deserve more attention that they receive now.The paper is organized in the following way. In Section 2, we develop the argument more fully, lay out some caveats and possible answers to them, and make connections to related literatures. In Section 3, we provide statistical evidence for our hypothesis. Finally, in Section 4, we conclude and discuss possible future research. A data appendix explains the sources and definitions of the main variables, including measures of sex ratio imbalance and of savings rates.2. Developing the argument: unbalanced sex ratios and competitive savingsIn this section, we first document the evolution of the sex ratio imbalance in the Chinese society over the last three decades. We then explain why this could trigger a race to raise savings rate, and connect this discussion to related literature.From unbalanced sex ratios to “bare branches”Left to the nature, the sex ratio at birth (in a society without massive starvation) is generally around 106 boys per 100 girls (with human biology compensating for a slightlyhigher mortality rate for infant boys than girls). The sex ratio was balanced or slightly below normal in the 1960s and 1970s (mostly likely due to malnutrition). The sex ratio at birth in China was close to be normal in 1980 (with 106 boys per 100 girls), but climbed steadily since the mid-1980s to over 120 boys for each 100 girls in 2005 (Li, 2007; Zhu, Lu, and Hesketh, 2009) and estimated to be 124 boys/100 girls in 2007. By 2005, men outnumbered women at age 25 or below by about 30 million. The excess men cannot be married mathematically. The number of unmarried men -sometimes referred to as “bare branches” in colloquial Chinese - continues to rise as the sex ratio imbalance deteriorates2.Some men may partner off as gays, and others may emigrate or marry women from other countries. Because the scale of the “bare branches” is so large – 30 million men are more than the entire male population of Italy or of many other countries, and because most “bare branches” come from low income households, actions by a small portion of men do not provide a practical solution to the problem. In any case, a rising sex ratio imbalance must imply a diminishing probability that a man will find a bride3.From fear of becoming a “bare branch” to competitive savingsMost men have a desire to get married. It may be safer to say that, in an Asian society, parents of a son strongly prefer for their son to be married. As the competitionfor a dwindling pool of potential wives intensifies, the parents of a son (or a son himself) will try harder to improve the son’s prospects for marriage. Postponing consumption and raising the household savings rate is one such action that families may take. To be successful, a family needs to save more than enough number of other competing families. If all families think the same way, this leads to competitive saving. (Of course, in general2 If some new-born girls are not reported by their parents with hopes to be pregnant again with a son, then the sex ratio imbalance at birth could be overstated in official statistics. To assess the quantitative importance of this possibility, we compare the sex ratio at birth in the 1990 population census with the sex ratio for the 10 years old in the 2000 census. It is reasonable to assume that parents would not hide their 10-year old girls from census-takers in 2000. First, those parents who would like to try for another child in 1990 most likely would have done so already within ten years, and have paid a fine for violating family planning policy by 2000. In addition, there were also positive incentives to report the girls who have reached school age since registration was required for (free) immunization shots and school attendance. Since the sex ratios for both the new-borns in 1990 and the 10 years old children in 2000 were 1.12, we conclude that the under-reported infant girls, as a proportion of total number of new-born girls, are not large enough to make a noticeable distortion to reported sex ratio imbalance. Zhu. Li and Hesketh (2009) reached the same conclusion with a somewhat different methodology.3 A fraud has recently emerged in which some women pretend to be willing to marry bachelors in a rural area in return for a bride price (“cai li”) on the order of RMB 40,000 (about US$5900, or “five years’ worth of farm income”). The women would then run away after the wedding with the bride price (“It’s cold cash, not cold feet, motivating runaway brides in China,” by Mei Fong, Wall Street Journal, June 5, 2009)equilibrium, the total number of unmarried men will not be changed by household savings decision. But an individual family’s desire to improve marriage prospects for its son may lead all families with a son to compete to increase their savings.]The idea that accumulating more wealth may improve one’s chance in the marriage market is not unique to China. For example, pop star Madonna has declared in the hit song, “Material Girl,” that: “We are living in a material world/ and I am a material girl/Some boys try and some boys lie but/ I don’t let them play/ Only boys who save their pennies/ make my rainy day.” So she sees a connection between a man’s savings rate and his success in dating. To be clear, our hypothesis does not require women to be material girls (in China or elsewhere). Indeed, other factors can be important for success in finding a spouse. But other things being equal, as long as more wealth improves a man’s likelihood for marriage, parents with a son (or a son himself) will be encouraged to raise their savings rates. Many factors (such as health and appearance) are difficult to control, but the savings rate is one such thing that parents or men themselves can act on. However, we are not saying that the savings behavior is the only variable that is altered by a rising sex ratio. Instead, parents with a son may do all things in their power to improve their son’s marriage prospect, including perhaps investing more in their son’s education, and pushing him to work harder. The hypothesis in the current paper is that postponing parents’ consumption and raising their savings rate may be one such variable that responds positively to a rising sex ratio.For the sex ratio to affect household savings rates, parents don’t have to know local sex ratio statistics. There is an invisible hand at work. Consider two otherwise identical households with a son, one in a region with a high sex ratio, and the other in a region with a low sex ratio. Parents in the first region would observe or be told by relatives or colleagues with a son that it is very expensive for their sons to find a girlfriend and to marry. The expectation for how much the parents (or the sons) need to contribute to their son’s new household, given costs of housing, cars, furniture, or honeymoons, would differ in the two regions. The types of furniture, cars and honeymoons, and local housing prices may already reflect the degree of competition in a local marriage market, and thus affect the savings required of parents with a son. In otherwords, even without knowledge of local sex ratio statistics, parents with a son may make savings decisions that reflect the local sex ratio.The initial inspiration for the hypothesis comes (from our visits to the National Zoo in Washington DC, and) from the literature on evolutionary biology. In nature, male sea lions or walruses tend to be physically larger than corresponding females; in fact, this pattern holds for most species. A leading hypothesis for why this occurs, sexual dimorphism, conjectures that because bigger and stronger males have an advantage in competing for and retaining females, differences in size are reinforced over time by natural selection (Weckerly 1998). It is likely that humans had to do the same a long time ago; that is why men, on average, are somewhat taller and larger than women. By now, the (sexual) returns to progressively larger males are much lower, if not negative. Men may discover that possessing a larger house, a bigger savings account, and more general wealth is a more effective mating strategy.Existing literature, potential caveats, and counter-argumentsNo other paper in the existing empirical literature that we are aware of makes a connection between sex ratios and savings rates. Nonetheless, a relevant economics literature is the work on status goods, positional goods, and social norms (e.g., Cole, Mailath and Postlewaite, 1992; Hopkins and Kornienko, 2004 and 2009). When allowing certain goods to offer utility beyond their direct consumption value (i.e., through “status,” which in turn could affect the prospect of finding a marriage partner), it is easy to show that consumption and savings behavior can be altered. It is important to point out, however, that the effect of a rising sex ratio imbalance on savings rates is conceptually ambiguous. In particular, when competition in the marriage market increases, men (or their parents) may compete by increasing their conspicuous consumption, if conspicuous consumption effectively signals their attractiveness; this would result in a decline in the savings rate. Our response is that, while conspicuous consumption may increase the frequency of dating, the probability of securing a marriage partner may depend more on showing substantial wealth than on showing off a few flashy goods. Furthermore, a visible way to demonstrate a man’s desirability is by owning a larger house (at least in a developing country like China), which requires a larger savings before the purchase ismade than otherwise. Both signaling strategies can induce households with a son to raise their savings rate. In any case, it is an empirical question as to whether savings rates are positively or negatively related to sex ratio imbalances.The theoretical models in Hopkins (2009) and Hopkins and Kornienko (2009) could be interpreted to predict that a rise in sex ratio imbalances leads to a rise in savings rates. In a possible reading of their models, men compete for potential wives through effort (including by raising their savings rate). Assume that the reward for a higher savings rate is a better chance to win a wife. Men with the lowest savings rates, on the other hand, may not find a wife. As the fraction of men who may stay unmarried increases, men (without coordination) compete by saving more. The resulting level of savings for men is inefficiently high: if all men were to cut their savings by the same amount, the chance for each of them to be matched with a wife would stay the same, but they would have avoided postponing consumption unnecessarily.When the savings effect dominates the conspicuous consumption effect for parents with a son (or unmarried men), would parents with a girl (or unmarried women) save less since a rising sex ratio is a favorable development for them? Indeed, could the reduction in their savings be so much as to completely offset the increase in savings by parents with a son or unmarried men? In a way, we can wait for the data to tell us the answer. Here, it is useful to point out the existence of an opposing force that could potentially raise the savings rate even by parents with a daughter. That force is the price of housing. Parents with a son (or unmarried men) may attempt to increase their competitiveness by buying a larger house, and may bid up housing prices in a region with an unbalanced sex ratio. As a consequence, even parents with a daughter have to save more in order to afford housing. This is a spillover effect4.This discussion has clear implications for the empirical work. First, we need to estimate the net effect of higher local sex ratios on local savings rates. Second, it would be useful to check how savings by households with a son or with a daughter respond to local sex ratios. Third, it would be informative to check if local housing prices are indeed linked to local sex ratios (holding constant other factors).4h When all men save more, the reward for savings by women or parents with a daughter increases, if wealthier men also prefer relatively wealthy women. As a result, parents with a daughter are also more willing to save. For a theoretical model that may deliver this result, see Peters and Siow, 2002. This could be an additional spillover channel.Determinants of sex ratio imbalanceSex ratio imbalance comes almost entirely from sex selective abortions. This, in turn, results from a combination of three factors: (a) parental preference for sons; (b) some limit to the number of children a couple is allowed or wants to have, which for the Chinese is a strict family planning policy; and (c) availability of inexpensive technology to screen the sex of a fetus (Ultrasound B in particular) and to perform abortions.Our empirical work will start with regressions that assume exogenous sex ratios. This assumption can be justified by recognizing that parental preference for sons is part of a culture, and as such, it changes only very slowly. Korea has experienced a sustained increase in its sex ratio imbalance for about 25 to 30 years, which has only recently started to decline; this evidence is consistent with our assumption (Guilmoto, 2007).We nonetheless also report instrumental variable regressions that allow for potential endogeneity of (and measurement error in) sex ratios. The instrumental variables for sex ratio in the pre-marital age cohort explore regional variations in the financial penalty for violating birth quotas, set by regional governments years before newborns grow to marriageable age.3. Statistical EvidenceSince 1980, both the sex ratio for marriage-age youths and the savings rate in China have been rising. In Figure 1, we present a time series plot of standardized versions of both variables,5 with the sex ratio at birth lagged by twenty years. The sex ratio is lagged since the median age of first marriage for Chinese women is about 20. The two standardized variables, visually, are highly correlated (the actual correlation coefficient is 0.822). While this is highly suggestive, it is not a rigorous proof by itself.Panel regressions across Chinese provinces during 1980-2007We start by examining provincial-level data for any association between local savings rates and local sex ratios. We perform a panel fixed effects regression that links a5 standardized variable = (raw variable – mean)/standard deviation.location j’s savings rate in year t with the sex ratio for the appropriate age cohort in that same location and year, controlling for location fixed effects, year fixed effects, and other factors. To be precise, our specification is the following:Savings_rate j,t = β Sex_ratio j,t +X j, tΓj,t + province fixed effects + year dummies +e j,tFollowing Chamon and Prasad (2008), we define the local savings rate by log (income net of taxes / living expenditure).6 This definition is less susceptible to extreme values, and makes the error term more likely to satisfy the normality assumption. We cluster the standard errors by province.Ideally, we would like to know sex ratios for a fixed age cohort in every region and in every year. However, such data are not available as the Chinese population census is carried out only once every few years (in 1982, 1990 and 2000). Moreover, only the 2000 census offers public data for individual age groups at the provincial level. Given these constraints, we make the following short cut: we focus on the sex ratios for the age cohort 7-21 in all years, inferred from the 2000 population census. For the age cohort 7-21 in 2007, we infer their sex ratio from the age cohort 0-19 in the 2000 census, since the two groups should theoretically be the same. Similarly, for the age cohort 7-21 in 1990, we infer their statistics from the cohort 17-31 in the 2000 census; and so on.A caveat with this method is that the actual sex ratio is likely to be different from the inferred one for all years other than 2000. In particular, because the mortality rates for boys and young men are generally slightly higher than those for girls and young women, we may under-estimate the true sex ratios for years before 2000 and over-estimate them for years after 2000. However, under the assumption that measurement errors are common across all regions in any given year (but may vary from year to year), we can eliminate the effect of measurement errors by including year fixed effects in regressions.As control variables, we include both log income and proportions of the local population in the age brackets of 0-19 and 20-59, respectively. Table 1a presents the summary statistics of the major variables used in the provincial level analysis. Table 1b6 Income and expenditure data, which are aggregated based on nationwide rural and urban household surveys, are from various issues of China Statistical Yearbooks.。
专用车术语1
专用车各部件名称1. cab 驾驶室(sleeper, 卧铺)2. chassis 底盘3. axle 车桥(front axle, rear axle, tandem axle 串联桥)4. drive axle 驱动桥5. frame 车架(body-on-frame 大梁subframe 附梁)6. engine 发动机7. axle bearing (axle load)轴承8. wheel base 轴距9. wheel span 轴承10. shocks 缓冲装置11. shock absorber 减震器12. brake 刹车(drum brake 鼓刹,air brake 气刹)13. suspension 悬架(mechanical suspension 机械悬架air suspension气动悬架)14. tailgate 后挡板门tail lamp 尾灯15. radiator 散热器16. hood发动机罩17. tire 轮胎(hub 轮毂)18. windshield wiper 风档刮水器/刮雨器19. gearbox 变速箱20. clutch 离合器21. prop shaft 后驱传动轴22. differential shaft分速器传动轴,差动轴,半轴23. final drive shaft 最终传动轴,终传动轴,主传动轴24. transmission 传动装置Transmission refers to drive train, including gearbox, clutch, prop shaft (for rear-wheel drive), differential and final drive shaftsTractor transmission with 16 forward and 8 backward gears25. speed ratios (gear ratios) 速比Transmission is provided that achieves at least nine forward speed ratios and two reverse speed ratios.26. hydraulic ram 液压油缸A standard dump truck is a truck chassis with a dump body mounted to the frame. The bed is raised by a hydraulic ram mounted under the front of the dumper body between the frames, and the back of the bed is hinged at the back to the truck.27. wear and tear 磨损(fair wear and tear 合理磨损)28. bumper 保险杠29. back-up alarms 倒车报警器30. truck accessory 卡车配件Typically referred to as "hard parts" or "cores" that include distributors, water pumps, radiators and the like. Some of the more popular accessories for light-duty trucks include tubular products such as nerf bars, grille guards, tonneau covers(车厢盖布), truck tool boxes, autocarts, and bed extenders.31. spiral blade螺旋面叶片The interior of the drum on a concrete truck is fitted with a spiral blade32. chute斜槽(混凝土搅拌车的卸料溜槽)33. concrete pump 混凝土输送泵。
Topic 4财务比率分析
4.3 Debt Management Ratios
Debt management ratios characterize a firm in terms of the relative mix of debt and equity financing and provide measures of the long-term debt paying ability of the firm.
3
Core words and expressions
debt management ratio 债务管理比率 debt ratio 债务比率 debt-to-equity ratio 债务权益(产权)比率 equity multiplier 权益乘数 long-term debt to total capital ratio leverage ratio 杠杆比率 interest coverage ratio 利息保障比率 cash flow coverage ratio 现金流量保障比率
杠杆比率
Long term debt Long term debt Ratio Total assets
Leverage ratios: relative amount of debt financing Coverage ratios: ability to meet longterm debt obligations
12
Internal Comparisons 内部比较
Analysts
can compare a present ratio with past and expected future ratios for the same company.
RNA Integrity Number (RIN)
RNA Integrity Number (RIN) –Standardization of RNA Quality ControlApplicationAbstractThe assessment of RNA integrity is a critical first step in obtaining meaningful gene expression data. Using intact RNA is a key element for successful microarray or RT-PCR analyses. The Agilent 2100 B ioanalyzer System and RNA kits play an important role in assisting researchers in the determination of RNA quality. Profiles generated on the Agilent 2100 B ioanalyzer System yield information on concentration, allow a visual inspection of RNA integrity, and generate ribosomal ratios. This Applica-tion Note describes a new software algorithm that has been developed to extract information about RNA sample integrity from a B ioanalyzerelectrophoretic trace.Odilo Mueller Samar Lightfoot Andreas Schroederribo somal peaks and the lower marker. The B ioanalyzer software automatically generates the ratio of the 18S to 28S ribosomal subunits. Although ribosomal ratios play an important role in determining the level of sample degradation in gel electrophoresis, the more detailed analysis on the Agilent 2100 B ioanalyzer System reveals that it inadequately describes sample integrity.In order to standardize the process of RNA integrity interpretation, Agilent Technologies has introduced a new tool for RNA quality assessment. The RNA Integrity Number (RIN), was developed to remove individual interpretation in RNA quality control. It takes the entire elec-trophoretic trace into account. The RIN software algorithm allows for the classification of IntroductionDetermining the integrity of RNA starting materials is a critical step in gene expression analysis. The Agilent 2100 B ioanalyzer System and associated RNA 6000 Nano and Pico kits have become the standard in RNA quality assess-ment and quantitation 1,2. Using electrophoretic separation on microfabricated chips, RNA sam-ples are separated and subse-quently detected via laser induced fluorescence detection. The B ioan-alyzer software generates an elec-tropherogram and gel-like image and displays results such as sam-ple concentration and the so-called ribosomal ratio. The electro -pherogram provides a detailed visual assessment of the quality of an RNA sample. However, meth-ods that rely on human visual interpretation of data are intrinsi-cally flawed. Previously, researchers have used the ribosomal ratio in both slab gel analysis and as a fea-ture within the B ioanalyzer soft-ware to characterize the state of RNA intactness. Slab gel analysis of total RNA samples using riboso-mal ratios often results in an inac-curate assessment of the RNA integrity 3. The Agilent 2100 B ioan-alyzer System provides a better assess-ment of RNA intactness by show-ing a detailed picture of the size distribution of RNA fragments. RNA degradation is a gradual process. As degradation proceeds (F igure 1), there is a decrease in the 18S to 28S ribosomal band ratio and an increase in thebase line signal between the twoeukaryotic total RNA, based on a numbering system from 1 to 10, with 1 being the most degraded profile and 10 being the most intact. In this way, interpretation of an electropherogram is facilitat-ed, comparison of samples is enabled and repeatability of experiments is ensured.Development of the RIN toolThe RIN software algorithm was developed for samples acquiredwith the Eukaryote Total RNA Nano assay on the Agilent 2100 B ioanalyzer System . Input data included approximately 1300 total RNA samples from various tissues, three mammalian species (human, mouse and rat), all with varying levels of integrity. Categorization of the RNAsamples was done manually by application specialists who classified each total RNA2Figure 1A total RNA sample was degraded for varying times and the resulting samples were analyzed on the Agilent 2100B ioanalyzer System using the Eukaryote Total RNA Nano assay. A shift towards shorter fragment sizes can be observed with progressing degradation.sample within a predefined Array numeric system from 1 through 10.Figure 2 shows representativeelectropherograms for differentRIN classes (10, 6, 3, 2, respectively).For development of the RINalgorithm, adaptive learning tools,such as neural networks, wereemployed (tools provided byquantiom bioinformatics). Theyallowed the determination ofcritical features that can beextracted from an electrophoretictrace. These features are parts ofan electropherogram that can beanalyzed using an appropriateintegrator. They can be signalareas, intensities, ratios etc.Important elements of an electro-pherogram are listed in figure 3.They include different regions(pre-, 5S-, fast-, inter-, precursor-,post-region) and peaks (marker,18S, 28S).RIN visualizationRIN will be part of the Agilent2100 expert software. Data foundin previous versions of the biosiz-ing software can also be found inthe next expert software version,for example, RNA area, RNA con-centration, rRNA ratios. The RINsoftware includes the RIN number(F igure 4), which can beexpressed either as a decimal orinteger. The RIN value can bechanged from a decimal to aninteger in the Assay Properties tab,in the Set Point Explorer underGlobal Advanced settings. RINvalues may not be computed if thesoftware finds an unexpected peakor signal in certain regions. Thiswill result in an error messageindicating that an3Figure 4RIN visualization in the Agilent 2100 B ioanalyzer System expert software. RIN numbers are found in the results tab, while the error tab will contain useful information in cases where the RINwas not computed. Figure 5Changing anomaly thresholds and single decimal RIN representation. If critical anomalies have been detected during the analysis, in many cases RIN values can still be computed by increasing the thresholds (max. = 1). Information regarding anomalies can be found in the error tab.anomaly has been detected (listed in the error tab of the software). Anomalies include genomic DNA contamination, ghost peaks, spikes, and wavy baselines. Anomalies can be divided into two classes: critical and non-critical. Non-critical anomalies, for example, a spike in the post region, will result in the computation of a RIN number while critical anomalies, for exam-ple, spikes in the fast region, will result in no RIN computation. If an anomaly is not deemed to be critical (such as genomic contami-nation, where a DNase digest should be performed to obtain meaningful data), a RIN value can still be computed by increasing the anomaly threshold settingsfound in the advanced settingsin the Set Point Explorer for the sample that has been flagged(F igure 5). The maximum value for anomaly threshold detection is 1. Description of the error message will correspond to an appropriate threshold number.Results obtained with RINThe RIN software was developedto remove user-dependent inter-pretation of RNA quality. Charac-terization of total RNA samples is largely independent of the instru-ment, sample concentration, and the operator allowing for the com-parison of samples across differ-ent laboratories.RNA integrityFigure 6 shows three RNA sam-ples at varying stages of intact-ness. The RIN tool gave three dif-ferent designations representing their respective intactness. During a large validation study using dif-ferent samples from the ones that 4Figure 6The RNA integrity number was tested on samples of varying levels of intactness. The RIN soft-ware algorithm was able to accurately classify the samples.were used to train the algorithm, reliable sample classification was obtained.Ribosomal ratiosFigure 7 shows the same sample human brain (Ambion, Inc.) total RNA that was run on three differ-ent instruments and representa-tive electropherograms of instru-ment 1 and 3 are shown. Riboso-mal ratios as generated with theB ioanalyzer software are com-pared with RIN values. For the 36 samples there is a larger degree of variability when using ribosomal ratios as compared to RIN values. Calculated RIN values were at 1.4 % coefficient of variance while ribosomal ratios had a5.1 % CV. Keep in mind that these CV values refer to identical samples. When including samples from different species and tissues,significantly larger CV values are found for the ribosomal ratio.When analyzing a sample at vari-ous dilutions a similar picture is found (figure 8). Mouse brain total RNA was diluted into three differ-ent concentrations, 25 ng/µL,100 ng/µL and 500 ng/µL. For the 108 samples tested it is apparent that the RIN value outperforms the ribosomal ratio by a large mar-gin. RIN CVs were at 3 % versus 22 % for the ribosomal ratio.It should be noted that below25 ng/µL, no accurate RIN values can be obtained. Best results are obtained for concentration values above 50 ng/µL.Figure 736 total RNA samples were analyzed on three different instruments. The RIN was compared with the ribosomal ratio value. CV’s for the RIN tool were significantly lower than for the ribosomal ratios.Figure 8When testing an identical RNA sample in various dilutions, identical RINs areobtained, within narrow limits, whereas ribosomal ratios show a much lesserdegree of reproducibility.5cerned. However, RIN cannot pre-dict the usefulness of gene expres-sion data without prior validation work. As an example, a sample might be too degraded to perform Using RINRIN is a powerful new tool in RNA integrity measurement. The schematic representation inF igure 9 proposes a best practices use-case for RIN. As a first step the RIN values have to be vali -dated (F igure 9A). This can be done by correlating RIN numbers with a specific downstream experiment such as microarray analysis or RT-PCR. This corre -lation step can be used to estab -lish a RIN threshold valuebetween successful down-stream experiments and failed experi -ments. It can be performed on sets of existing B ioanalyzer data, if available. After the thresh-old value has been established, this value can be used in the standard RNA QC procedure (F igure 9B). All samples with a RIN higher than the threshold value pass the QC test, while samples below thethreshold value are discarded. The correlation step of validating the RIN has to be repeated if a signi -ficant experimental parameter is changed (for example, different organism investigated, different type of microarray used, using different probe sets, etc.). So far the RIN algorithm has been tested using the eukaryote total RNA Nano assay.RIN limitationsRIN has been designed to provide unambiguous assessment of RNA integrity. A measure of sample integrity is given, which can be used to directly compare samples before and after shipment, and for the comparison of samples from one lab to another lab. Most importantly, it can be used to ensure the repeatability of gene expression experiments as far as the sample extraction step is con-6a genome-wide microarray experi-ment, but might deliver good RT-PCR data. It is essential that the necessary correlative work be done in order to effectively use RIN.(iterative process)RNA QC via Agilent 2100 bioanalyzerFigure 9A. Correlate RIN values with downstream experiments (e.g. microarray or RT-PCR) and determine threshold value for obtaining meaningful gene expression results.B. Once initial correlation experiment has been performed, and data thresholds have been set, RIN values can be used to discard samples that do not pass the sample QC on the Agilent 2100 B ioanalyzer System (RIN below threshold).ConclusionWe have designed a software algo-rithm that is capable of assessing RNA quality better than ribosomal ratios. The RIN tool is a major step in the standardization of RNA integrity assessment. The researcher is no longer tied to arbitrary clas-sification of total RNA. By per-forming correlative experiments, thresholds can be created to ensure repeatability of experiments. The RIN tool has been found to be largely free from instrument and concentration variability, thereby facilitating the comparison of samples from instrument to instrument and lab to lab.References1.“Quantitation comparison of totalRNA using the Agilent 2100 B ioana-lyzer, ribogreen analysis, and UVspectrometry”,Agilent ApplicationNote, Publication Number 5988-7650EN, 2002.2.“A microfluidic system for high-speed reproducible DNA sizingand quantitation”,Electrophoresis,21(1), 128-34, 2000.3.“Advancing the quality controlmethodology to asses isolatedtotal RNA and generated fragmentedcRNA”,Agilent Application Note,Publication Number 5988-9861EN, 2003.AcknowledgementsWe would like to extend specialthanks to our collaborationpartners Ambion Inc. and theGerman Resource Center forGenome Research RZPD as wellas to Quantiom Bioinformatics.We would also like to acknowledgewith special gratitude all theresearchers who alpha-testedthe RIN algorithm and providedvaluable inputs.7/chem/labonachipLabChip ®is a registered trademark of Caliper Life Sciences, Inc. in the U.S. and other countries.Odilo Mueller is Assay Manager Nucleic Acid LabChip kits,Samar Lightfoot is Assay Sup-port Biochemcist for Nucleic Acids and Andreas Schroeder is Software Specialist, all at Agilent Technologies, Waldbronn,Germany.Not for use in diagnostic procedures.The information in this publication is subject to change without notice.Copyright © 2004, 2016 Agilent Technologies All Rights Reserved. Reproduction, adaptation or translation without prior written permission is prohibited, except as allowed under the copyright laws.Published January 21, 2016Publication Number 5989-1165EN。
TS36.101v1.0.0
3GPP TS 36.101v1.0.0(2007-12)Technical Specification3rd Generation Partnership Project;Technical Specification Group Radio Access Network;Evolved Universal Terrestrial Radio Access (E-UTRA);User Equipment (UE) radio transmission and reception;(Release 8)The present docu ment has been developed within the 3r d Generation Partnership Project (3GPP TM) and may be further elaborated for the purposes of 3G PP. The present d ocument has not been subject to any approval process by the 3G PP Organizational Partners and shall not be implemented.This Specification is provided for fu ture development work within 3GPP only. The Organizational Partners accept no liability for any use of this Specification. Specifications and reports for implementation of the 3GPP TM system should be obtained via the 3GPP Organizational Partners' Publications Offices.KeywordsEUTRA, User Equipment (UE), radio, RF requirements3GPPPostal address3GPP support office address650 Route des Lucioles - Sophia AntipolisValbonne - FRANCETel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16InternetCopyright NotificationNo part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media.© 2006, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC).All rights reserved.ContentsForeword (6)1Scope (7)2References (8)3Definitions, symbols and abbreviations (9)3.1Definitions (9)3.2Symbols (9)3.3Abbreviations (10)4General (11)4.1Relationship between Minimum Requirements and Test Requirements (11)5Frequency bands and channel arrangement (12)5.1General (12)5.2Frequency bands (12)5.3TX–RX frequency separation (12)5.4Channel arrangement (12)5.4.1Channel spacing (12)5.4.2Channel bandwidth (13)5.4.2.1 Nominal channel bandwidth (13)5.4.2.2Additional channel bandwidth (14)5.4.3Channel raster (15)5.4.4Channel number (15)5.4.5EA RFCN (16)6Transmitter characteristics (17)6.1General (17)6.2Transmit power (17)6.2.1Maximum Output Power (MOP) (17)6.2.2UE Power class (17)6.2.3Maximum Power Reduction (MPR) (18)6.2.4Additional Maximum Power Reduction (A-MPR) (18)6.3Output power dynamics (19)6.3.1Power control (19)6.3.2Minimum output power (19)6.3.3Transmit ON/OFF power (20)6.4Control and monitoring functions (20)6.4.1Out-of-synchronization handling of output power (20)6.5Transmit signal quality (20)6.5.1Frequency Error (20)6.5.2Transmit modulation (20)6.5.2.1Error Vector Magnitude (20)6.5.2.1.1Minimum requirement (20)6.5.2.2IQ-component (21)6.5.2.2.1Minimum requirements (21)6.5.2.3In-band emissions (21)6.5.2.3.1Minimum requirements (21)6.6Output RF spectrum emissions (21)6.6.1Occupied bandwidth (22)6.6.2Out of band emission (22)6.6.2.1Spectrum emission mask (22)6.6.2.1.1Minimum requirement (22)6.6.2.2Additional Spectrum Emission Mask (23)6.6.2.2.1Minimum requirement (network signalled value “NS_03”) (23)6.6.2.2.2Minimum requirement (network signalled value “NS_04”) (23)6.6.2.2.3Minimum requirement (network signalled) (24)6.6.2.3Adjacent Channel Leakage Ratio (24)6.6.2.3.1Minimum requirement E-UTRA (24)6.6.2.3.2Minimum requirements UTRA (25)6.6.2.4Additional ACLR require ments (25)6.6.2.4.1Minimum requirements (network signalled value “NS_02”) (25)6.6.3Spurious emissions (26)6.6.3.1Minimum requirements (26)6.6.3.2Spurious emission band UE co-existence (26)6.6.3.3Additional spurious emissions (27)6.6.3.3.1Minimum requirement (network signalled value “NS_05”) (27)6.6.3.3.2Minimum requirements (network signalled) (27)6.7Transmit intermodulation (27)7Receiver characteristics (29)7.1General (29)7.2Diversity characteristics (29)7.3Reference sensitivity power level (29)7.3.1Minimum requirements (QPSK) (29)7.3.2Maximum Sensitivity Reduction (MSR) (30)7.4Maximum input level (30)7.4.1Minimum requirements (31)7.5Adjacent Channel Selectivity (A CS) (31)7.5.1Minimum requirements (31)7.6Blocking characteristics (32)7.6.1In-band blocking (32)7.6.1.1Minimum requirements (32)7.6.2Out of-band blocking (33)7.6.2.1Minimu m requirements (33)7.6.3Narrow band blocking (34)7.6.3.1Minimum requirements (34)7.7Spurious response (35)7.7.1Minimum requirements (35)7.8Intermodulation characteristics (35)7.8.1Wide band Intermodulation (35)7.8.1.1Minimum requirements (35)7.8.2Narrow band Intermodulation (36)7.8.2.1Minimum requirements (36)7.9Spurious emissions (36)7.9.1Minimum requirements (36)8Performance requirement (37)8.1General (37)8.1.1Dual-antenna receiver capability (37)8.1.1.1Simultaneous unicast and MBMS operations (37)8.1.1.2Dual-antenna receiver capability in idle mode (37)Annex A (normative): Measurement channels (38)A.1General (38)A.2UL reference measurement channels (38)A.3DL reference measurement channels (38)Annex B (normative): Propagation conditions (39)B.1General (39)B.2Propagation channel s (39)B.2.1Static propagation condition (39)B.2.2Multi-path fading propagation conditions (39)B.2.2.1Delay profiles (39)B.2.2.2Doppler spectrum (40)B.2.2.3Multi-Antenna channel models (42)B.2.2.4Combinations of channel model parameters (46)Annex C (normative): Downlink Physical Channels (47)C.1General (47)C.2Set-up (47)C.3Connection (47)Annex D (normative): Characteristics of the interf ering signal (48)D.1General (48)D.2Interference signals (48)Annex E (normative): Environmental conditions (49)E.1General (49)E.2Environmental (49)E.2.1Temperature (49)E.2.2Voltage (49)E.2.3Vibration (50)Annex F (informative): Change history (51)ForewordThis Technical Specification (TS) has been produced by the 3rd Generation Partnership Project (3GPP).The contents of the present document are subject to continuing work within the TSG and may change following formal TSG approval. Should the TSG modify the contents of the present document, it will be re-released by the TSG with an identifying change of release date and an increase in version number as follows:Version x.y.zWhere:x the first digit:1 presented to TSG for information;2 presented to TSG for approval;3 or greater indicates TSG approved document under change control.y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections, updates, etc.z the third digit is incremented when editorial only changes have been incorporated in the document.1 ScopeThe present document establishes the User Equipment (UE) minimum RF characteristics of E-UTRA for both FDD and TDD modes2 ReferencesThe following documents contain provisions which, through reference in this text, constitute provisions of the present document.∙References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific.∙For a specific reference, subsequent revisions do not apply.∙For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.[1] 3GPP TR 21.905[2] ETSI ETR 273: "Electromagnetic compatibility and Radio spectrum Matters (ERM); Improvement ofradiated methods of measurement (using test sites) and evaluation of the corresponding measurementuncertainties; Part 1: Uncertainties in the measurement of mobile radio equipment characteristics; Sub-part 2: Examples and annexes".[3] Recommendation ITU-R SM.329-10, “Unwanted emissions in the spurious domain”[4] Recommendation ITU-R M.1225, “Guidelines for Evaluation of Radio Transmission Technologies forIMT-2000”, ITU-R, 1997.[5] 3GPP TR 25.943 V6.0.0 (2004-12), “Deployment aspects (Release 6)”.[6] 3GPP TR 25.913: “Requirements for Evolved UTRA and UTRAN”.[7] 3GPP TS 45.005 V7.8.0 (2006-11), “3rd Generation Partnership Project; Technical Specification GroupGSM/EDGE Radio Access Network; Radio transm ission and reception (Release 7)”.[8] R4-070752, “Proposal for LTE channel models”[9] 3GPP TR 25.943 V6.0.0 (2004-12), “Deployment aspects (Release 6)”.3 Definitions, symbols and abbreviations3.1 DefinitionsFor the purposes of the present document, the following terms and definitions apply.<defined term> : <definition>.For the purposes of the present document, the terms and definitions given in TR 21.905 [x] and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905 [x].Channel edge: The lowest and highest frequency of the carrier, separated by the channel bandwidth.Channel bandwidth: The RF bandwidth supporting a single E-UTRA RF carrier with the transmission bandwidth configured in the uplink or downlink of a cell. The channel bandwidth is measured in MHz and is used as a reference for transmitter and receiver RF requirements.Maximum Output Power: The mean power level per carrier of UE measured at the antenna connector in a specified reference condition.Mean power: When applied to E-UTRA transmission this is the power measured in the operating system bandwidth of the carrier. The period of measurement shall be at least one subframe (1ms) for frame structure type 1 and one subframe (0.675ms) for frame structure type 2 excluding the guard interval, unless otherwise stated.Occupied bandwidth: The width of a frequency band such that, below the lower and above the upper frequency limits, the mean powers emitted are each equal to a specified percentage β/2 of the total mean power of a given emission.Output power: The mean power of one carrier of the UE, delivered to a load with resistance equal to the nominal load impedance of the transmitter.Reference bandwidth: The bandwidth in which an emission level is specified.Transmission bandwidth: Bandwidth of an instantaneous transmission from a UE or BS, measured in Resource Block units.Transmission bandwidth configuration: The highest transmission bandwidth allowed for uplink or downlink in a given channel bandwidth, measured in Resource Block units.3.2 SymbolsFor the purposes of the present document, the following symbols apply:BW Channel Channel bandwidthF FrequencyF Interferer (offset) Frequency offset of the interfererF Interferer Frequency of the interfererF C Frequency of the carrier centre frequencyF DL_low The lowest frequency of the downlink operating bandF DL_high The highest frequency of the downlink operating bandF UL_low The lowest frequency of the uplink operating bandF UL_high The highest frequency of the uplink operating bandN DL Downlink EARFCNN Offs-DL Offset used for calculating downlink EA RFCNN Offs-UL Offset used for calculating uplink EARFCNN RB Transmission bandwidth configuration, expressed in units of resource blocksN UL Uplink EA RFCNRav M inimum average throughput per RBP Interferer Modulated mean power of the interfererΔF OOB Δ Frequency of Out Of Band emission3.3 AbbreviationsFor the purposes of the present document, the abbreviations given in TR 21.905 [1] and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905 [1].ACLR Adjacent Channel Leakage RatioACS Adjacent Channel SelectivityA-MPR Additional Maximum Power ReductionAWGN Additive White Gaussian NoiseBS Base StationCW Continuous WaveDL DownlinkEA RFCN E-UTRA Absolute Radio Frequency Channel NumberE-UTRA Evolved UMTS Terrestrial Radio AccessEUTRAN Evolved UMTS Terrestrial Radio Access NetworkEVM Error Vector MagnitudeFDD Frequency Division DuplexFRC Fixed Reference ChannelHD-FDD Half- Duplex FDDMCS Modulation and Coding SchemeMOP Maximum Output PowerMPR Maximum Power ReductionMSR Maximum Sensitivity ReductionOOB Out-of-bandPA Power A mplifierREFSENS Reference Sensitivity power levelSNR Signal-to-Noise RatioTDD Time Division DuplexUE User EquipmentUL UplinkUMTS Universal Mobile Telecommunications SystemUTRA UMTS Terrestrial Radio AccessUTRAN UMTS Terrestrial Radio Access NetworkOther abbreviations used in the present document are listed in 3GPP TR 21.905 [1].4 General4.1 Relationship between Minimum Requirements and TestRequirementsThe Minimum Requirements given in this specification make no allowance for measurement uncertainty. The test specification TS 36.xxx section y defines Test Tolerances. These Test Tolerances are individually calculated for each test. The Test Tolerances are used to relax the Minimum Requirements in this specification t o create Test Requirements.The measurement results returned by the Test System are compared - without any modification - against the Test Requirements as defined by the shared risk principle.The Shared Risk principle is defined in ITU-R M.1545 [3].5 Frequency bands and channel arrangement5.1 GeneralThe channel arrangements presented in this clause are based on the frequency bands and channel bandwidths defined in the present release of specifications.NOTE: Other frequency bands and channel bandwidths may be considered in future releases.5.2 Frequency bandsE-UTRA is designed to operate in the frequency bands defined in Table 5.2-1.Table 5.2-1 E-UTRA frequency bands5.3 TX–RX frequency separation5.4 Channel arrangement5.4.1 Channel spacingThe spacing between carriers will depend on the deployment scenario, the size of the frequency block available and the channel bandwidths. The nominal channel spacing between two adjacent E-UTRA carriers is defined as following:Nominal Channel spacing = (BW Channel(1) + BW Channel(2))/2where BW Channel(1) and BW Channel(2) are the channel bandwidths of the two respective E-UTRA carriers. The channel spacing can be adjusted to optimize performance in a particular deployment scenario5.4.2 Channel bandwidthRequirements in present document are specified for the channel bandwidths listed in Table 5.4-1.Table 5.4-1 Transmission bandwidth configuration N RB in E-UTRA channel bandwidthsFigure 5.4-1 shows the relation between the Channel bandwidth (BW Channel) and the Transmission bandwidth configuration (N RB). The channel edges are defined as the lowest and highest frequencies of the carrier separated by the channel bandwidth, i.e. at F C +/- BW Channel /2.Figure 5.4-1 Definition of Channel Bandwidth and Transmiss ion Bandwidth Configuration.5.4.2.1 Nominal channel bandwidthTable 5.4.2-1 specifies the nominal channel bandwidth which are supported for the E-UTRA bandTable 5.4.2-1: E-UTRA channel bandwidth5.4.2.2 Additional channel bandwidthThe following additional channel bandwidth can be supported if certain relaxations of the UE performance are allowed or UE functionality is limited. These relaxations and limitations are TBD.Table 5.4.4.2-1: Additional E-UTRA channel bandwidth5.4.3 Channel rasterThe channel raster is 100 kHz for all bands, which means that the carrier centre frequency must be an integer multiple of 100 kHz.5.4.4 Channel numberThe carrier frequency in the uplink and downlink is designated by the E-UTRA Absolute Radio Frequency Channel Number (EA RFCN). The carrier frequency in MHz for the downlink is given by the following equation, where F DL_low and N Offs-DL are given in table 5.4.4-1 and N DL is the downlink EA RFCN.F DL = F DL_low + 0.1(N DL– N Offs-DL)The carrier frequency in MHz for the uplink is given by the following equation where F UL_low and N Offs-UL are given in table 5.4.4-1 and N UL is the uplink EARFCN.F UL = F UL_low + 0.1(N UL– N Offs-UL)Table 5.4.4-1 E-UTRA channel numbers5.4.5 EARFCN6 Transmitter characteristics6.1 GeneralUnless otherwise stated, the transmitter characteristics are specified at the antenna connector of the UE with a single transmit antenna. For UE with integral antenna only, a reference antenna with a gain of 0 dBi is assumed.6.2 Transmit power6.2.1 Maximum Output Power (MOP)The Maximum Output Power (MOP) defined in Table 6.2.1-1 is the broadband transmit power of the UE, i.e. the power in the channel bandwidth (clause 5.2) for all transmit bandwidth configurations (resource blocks).Table 6.2.1-1: Maximum Output Power (MOP)6.2.2 UE Power classThe following UE Power Classes define the nominal maximum output power. The nominal power is defined as the broadband transmit power of the UE, i.e. the power in the channel bandwidth (clause 5.2) of the radio access mode. The period of measurement shall be at least one [timeslot/ frame/TTI].Table 6.2.2-1: UE Power ClassThe transmission bandwidth configuration (resource blocks) for the maximum output power specified in Table 6.2.2-1 is defined in Table 6.2.2-2 below for QPSK modulation.Table 6.2.2-2: UE Power Class / channel bandwidth / transmission configuration6.2.3 Maximum Power Reduction (MPR)For UE PowerClass 3, the allowed Maximum Power Reduction (MPR) for the nominal maximum output power in 6.2.2 due to higher order modulation and transmit bandwidth configuration (resource blocks) is specified in Table 6.2.3-1.Table 6.2.3-1: Maximum Power Reduction (MPR) for PC 36.2.4 Additional Maximum Power Reduction (A-MPR)Additional ACLR and spectrum emission requirements can be signalled by the network to indicate that the UE shall meet also additional requirements in a specific deployment scenario. To meet these additional requirements the concept of A-MPR is introduced.For UE Power Class 3 the specific requirements and identified sub-clauses are specified in table 6.2.4-1 along with the allowed A-MPR values that may be used to meet these requirements. The allowed A-MPR values specified below are in addition to the allowed MPR requirements specified in clause 6.2.3.Table 6.2.4-1: Additional Maximum Power Reduction (A-MPR) / Spectrum Emission requirements6.3 Output power dynamics6.3.1 Power control6.3.2 Minimum output powerThe minimum controlled output power of the UE is defined as the broadband transmit power of the UE, i.e. the power in the channel bandwidth (clause 5.2) for all transmit bandwidth configurations (resource blocks), when the power is set to a minimum value.6.3.2.1Minimum requirementThe minimum output power is defined as the mean power in one sub-frame (1ms). The minimum output power shall be less than [-30] dBm.6.3.3 Transmit ON/OFF power6.4 Control and monitoring functions6.4.1 Out-of-synchronization handling of output power6.5 Transmit signal quality6.5.1 Frequency ErrorThe UE modulated carrier frequency shall be accurate to within ±0.1 PPM observed over a period of one sub-frame(1ms) for generic frame structure type 1 and one sub-frame (0.675ms) for frame structure type 2 excluding the guard period (Cyclic prefix).6.5.2 Transmit modulationTransmit modulation defines the modulation quality for expected in-channel RF transmissions from the UE. This transmit modulation limit is specified in terms of; an Error Vector Magnitude (EVM) for the allocated resources blocks (RB), an I/Q component and an in-band emissions for the non-allocated RB.6.5.2.1 Error Vector MagnitudeThe Error Vector Magnitude is a measure of the difference between the reference waveform and the measured waveform. This difference is called the error vector. Before calculating the EVM the measured waveform is corrected by the sample timing offset and RF frequency offset. Then the IQ origin offset is removed from the measured waveform.The measured waveform is further modified by selecting the absolute phase and absolute amplitude of the Tx chain. The EVM result is defined after the front-end IDFT as the square root of the ratio of the mean error vector power to the mean reference power expressed as a %. The measurement interval is one [timeslot] except when the mean power between slots is expected to change whereupon the measure ment interval is reduced by [] μs at each end of the slot. The IQ origin offset shall be removed from the evaluated signal before calculating the EVM; however, the removed relative IQ origin offset power (relative carrier leakage power) also has to satisfy the applicable requirement.6.5.2.1.1 M inimum requirementThe RMS average of the basic EVM measurements for [10 consecutive sub-frames] for the different modulations schemes shall not exceed the values specified in Table 6.5.2.1.1-1 for the parameters defined in Table 6.5.2.1.1-2.Table 6.5.2.1.1-1: Minimum requirements for Error Vector MagnitudeTable 6.5.2.1.1-2: Parameters for Error Vector Magnitude6.5.2.2 IQ-componentThe IQ origin offset is the phase and amplitude of an additive sinusoid waveform that has the same frequency as the reference waveform carrier frequency.6.5.2.2.1 Minimum requirementsThe relative carrier leakage power (IQ origin offset power) shall not exceed the values specified in Table 6.5.2.2.1-1.Table 6.5.2.2.1-1: Minimum requirements for Relative Carrier Leakage Power6.5.2.3 In-band emissions6.5.2.3.1 M inimum requirements6.6 Output RF spectrum emissionsThe output UE transmitter spectrum consists of the three components; the emission within the occupied bandwidth (channel bandwidth), the Out Of Band (OOB) emissions and the far out spurious emission domain.Figure 6.6-1: Transmitter RF spectrum6.6.1 Occupied bandwidthOccupied bandwidth is defined as the bandwidth containing 99 % of the total integrated mean power of the transmitted spectrum on the assigned channel. The occupied bandwidth for all transmission bandwidth configurations (Resources Blocks) shall be less than the channel bandwidth specified in Table 6.6.1-1Table 6.6.1-1: Occupied channel bandwidth6.6.2 Out of band emissionThe Out of band emissions are unwanted emissions immediately outside the assigned channel bandwidth resulting from the modulation process and non-linearity in the transmitter but excluding spurious emissions. This out of band emission limit is specified in terms of a spectrum emission mask and an Adjacent Channel Leakage power Ratio.6.6.2.1 Spectrum emission maskThe spectrum emission mask of the UE applies to frequencies (Δf OOB) starting from the edge of the assigned E-UTRA channel bandwidth. For frequencies greater than (Δf OOB) as specified in Table 6.6.2.1.1-1 the spurious requirements in clause 6.6.3 are applicable.6.6.2.1.1 Minimum requirementThe power of any UE emission shall not exceed the levels specified in Table 6.6.2.1.1-1 for the specified channel bandwidth.Table 6.6.2.1.1-1: General E-UTRA spectrum emission maskNote: As a general rule, the resolution bandwidth of the measuring equipment should be equal to the measurement bandwidth. However, to improve measurement accuracy, sensitivity and efficiency, the resolution bandwidth may be smaller than the measurement bandwidth. When the resolution bandwidth is smalle r than the measurement bandwidth, the result should be integrated over the measurement bandwidth in order to obtain the equivalent noise bandwidth of the measurement bandwidth.6.6.2.2 Additional Spectrum Emission MaskThis requirement is specified in ter ms of an “additional spectrum emission” requirement.6.6.2.2.1 Minimum requirement (network signalled value “NS_03”)Additional spectrum emission requirements are signalled by the network to indicate that the UE shall meet an additional requirement for a specific deployment scenario as part of the cell handover/broadcast message.When “NS_03” is indicated in the cell, the power of any UE emission shall not exceed the levels specified in Table6.6.2.2-1.Table 6.6.2.2.1-1: Additional requirements (FCC Part 22)Note: As a general rule, the resolution bandwidth of the measuring equipment should be equal to the measurement bandwidth. However, to improve measurement accuracy, sensitivity and efficiency, the resolution bandwidth may be smaller than the measurement bandwidth. When the resolution bandwidth is smaller than the measurement bandwidth, the result should be integrated over the measurement bandwidth in order to obtain the equivalent noise bandwidth of the measurement bandwidth.6.6.2.2.2 Minimum requirement (network signalled value “NS_04”)Additional spectrum emission requirements are signalled by the network to indicate that the UE shall meet an additional requirement for a specific deployment scenario as part of the cell handover/broadcast message.When “NS_04” is indicated in the cell, the power of any UE emission shall not exceed the levels specified in Table6.6.2.2.2-1.Table 6.6.2.2.2-1: Additional requirements (FCC Part 27)Note: As a general rule, the resolution bandwidth of the measuring equipment should be equal to the measurement bandwidth. However, to improve measurement accuracy, sensitivity and efficiency, the resolution bandwidth may be smaller than the measurement bandwidth. When the resolution bandwidth is smaller than the measurement bandwidth, the result should be integrated over the measurement bandwidth in order to obtain the equiv alent noise bandwidth of the measurement bandwidth.6.6.2.2.3 Minimum requirement (network signalled)6.6.2.3 Adjacent Channel Leakage RatioAdjacent Channel Leakage power Ratio (A CLR) is the ratio of the] filtered mean power centred on the assigned channel frequency to the filtered mean power centred on an adjacent channel frequency. ACLR requirements are specified for two scenarios for an adjacent E -UTRA and /or UTRA channel as shown in Figure 6.6.2.3 -1.Figure 6.6.2.3-1: Adjacent Channel Leakage requirements6.6.2.3.1 Minimum requirement E-UTRAE-UTRA Adjacent Channel Leakage power Ratio (E-UTRA ACLR) is the ratio of the filtered mean power centred on the assigned channel frequency to the filtered mean power centred on an adjacent channel frequenc y. The E-UTRA on channel and adjacent channel power is measured with a [rectangular measurement bandwidth filter.]6.6.2.3.2 Minimum requirements UTRAUTRA Adjacent Channel Leakage power Ratio (UTRA ACLR) is the ratio of the filtered mean power centred on the assigned E-UTRA channel frequency to the filtered mean power centred on an adjacent(s) UTRA channel frequency. UTRA Adjacent Channel Leakage power Ratio is specified for both the first UTRA 5 MHz adjacent channel (UTRA ACLR1) and the 2nd UTRA 5MHz adjacent channel (UTRA ACLR2) .The UTRA channel is measured with a 3.84 MHz RRC bandwidth filter with roll-off factor α =0.22. The E-UTRA channel is measured with a [rectangular measurement bandwidth filter]Table 6.6.2.3.2-1: Additional requirements6.6.2.4 Additional ACLR requirementsThis requirement is specified in terms of an additional UTRA ACLR2 requirement.6.6.2.4.1 Minimum requirements (network signalled value “NS_02”)”NS_02” is signalled by the network to indicate that the UE shall meet this additional requirement for a specific deployment scenario as part of the cell handover/broadcast message.The Additional ACLR requirements is specified for the 2nd UTRA 5MHz adjacent channel (UTRA ACLR2) .The UTRA channel is measured with a 3.84 MHz RRC bandwidth filter with roll-off factor α =0.22. The E-UTRA channel is measured with a [rectangular measurement bandwidth filter.]。
财务常用英语词汇ko
财务管理常用英语词汇1.business企业商业业务2.financial management财务管理3.the goal of financial management财务管理的目标4.profit maximization (maximize profit) 利润最大化5.earnings per share maximization每股盈余最大化6.stockholder (share holder) wealth maximization股东财富最大化7.stakeholder利益相关者8.stock holder/shareholder股东9.creditor/bondholder债权人10.the factors that affect the stockholder value股东价值的影响因素11.cost of capital资本成本12.capital investment资本投资13.working capital 营运资本14.capital structure 资本结构15.bankruptcy risk 破产风险16.tax rate 税率17.dividend policy股利政策18.operating activity 经营活动19.investing activity投资活动20.financing activity 筹资活动21.agency cost 代理成本22.agency problem代理问题23.moral risk道德风险24.adverse selection逆向选择25.corporate social responsibility企业社会责任26.financial markets金融市场27.money markets短期资金市场28.capital markets长期资金市场29.spot markets现货市场30.future markets期货市场31.public offer markets向公众发行的市场32.initial public offering 首次公开发行股票(即IPO)33.private placement markets私募市场34.corporate bond market企业债券市场35.stock market股票市场36.financial future market金融期货市场37.financial ratio analysis 财务比率分析38.four major categories of financial ratios 四类财务比率39.liquidity ratios 短期偿债能力比率40.long-term liquidity ratios 长期偿债能力比率41.profitability ratios盈利能力比率42.operating income经营收益43.earnings per share每股收益44.working capital营运资本45.current ratio流动比率46.quick ratio速动比率47.cash flow ratio现金流量比率48.operating cash flows经营现金流49.cash flow from operations经营活动现金流50.investing cash flows投资现金流51.cash flow from investing 投资活动现金流52.cash flows from financing筹资活动现金流53.debt ratio资产负债率54.debt-to-equity ratio产权比率55.equity multiplier权益乘数56.debt-to-long capital ratio长期资本负债率57.time of interest earned based on earnings (TIE)58.earnings-based interest coverage ratio利息保障倍数59.cash flow coverage ratio现金流量保障比率60.time of interest earned based on cash flows61.cash flow-based interest coverage ratio现金流量利息保障倍数62.debt-to-cash flow ratio现金流量债务比63.accounts receivable turnover/days sales outstanding (DSO) 应收账款周转率/应收账款周转天数64.inventory turnover存货周转率65.current assets turnover流动资产周转率66.non-current assets turnover/fixed assets turnover非流动资产周转率(固定资产周转率)67.total assets turnover总资产周转率68.gross profit margin销售毛利率69.net profit margin销售利润率70.return on assets (ROA) 资产利润率71.return on equity (ROE) 权益净利率72.Du Pont system杜邦财务分析体系73.improved financial analysis system改进的财务分析体系74.net operating assets净经营资产75.net financial liabilities净金融负债76.after-tax operating profit税后经营利润77.after-tax interest expense税后利息费用78.net financial leverage净财务杠杆79.earnings per share每股盈余80.sales forecast销售预测81.the percentage of sales method销售百分比法82.external financing requirement(EFR) 外部融资额83.sensitivity analysis of EFR外部融资需求的敏感分析84.internal growth rate内含增长率85.sustainable growth rate可持续增长率86.effective growth rate实际增长率87.overall budget (general budget) 全面预算88.sales budget销售预算89.production budget生产预算90.direct material budget直接材料预算91.direct labor budget直接人工预算92.overhead budget制造费用预算93.product cost budget产品成本预算94.sales expense and administrative销售费用95.general expense budget 管理费用预算96.cash budget现金预算97.capital expenditure budget资本支出预算98.income statement budget利润表预算99.balance sheet budget资产负债表预算100.flexible budget弹性预算101.the valuation of discounted cash flow method 折现现金流量估价法102.the time value of money 货币的时间价值103.future value and present value 复利终值与现值104.ordinary annuity普通年金105.annuity due预付年金106.deferred annuity递延年金107.perpetuity永续年金108.bond valuation债券估价109.par value (face value, principal) 债券面值110.coupon rate票面利率111.maturity date到期日112.nominal annual rate名义利率113.periodic rate周期利率114.effective annual rate实际利率115.real discount bond纯贴现债券116.zero bond平息债券117.perpetual bond永久债券118.outstanding bond流通债券119.yield to maturity 债券到期收益率120.stock valuation 股票估价121.ordinary stock普通股122.preferred stock优先股123.common stockholder 普通股股东124.preferred stockholder优先股股东125.open price开盘价126.close price收盘价127.high price最高价128.low price最低价129.zero growth model valuation零增长股票估价130.constant growth model valuation 固定增长股票估价131.non-constant growth model valuation 非固定增长股票估价132.risk and rate of return 风险和报酬133.stand-alone risk and rates of return 单项资产的风险和报酬134.Relaxed/restricted/moderate current asset investment policy宽松的/紧缩的/适中的营运资本政策135.maturity matching(self-liquidating) /aggressive/conservative current asset financing policy配合型/激进型/稳健型筹资政策136.residual income剩余收益137.credit terms for borrowing借款的信用条件138.line of credit信贷限额139.revolving credit agreement周转信贷协议140.compensating balances补偿性余额141.loan mortgage借款抵押142.forms of interest payment借款利息的支付方法143.distributions to shareholders/dividend distribution利润分配144.declaration date股利宣告日145.holder-of-record date股权登记日146.payment date股利支付日147.ex-dividend date除息日148.cash dividend现金股利149.asset (property)dividend财产股利150.liability dividend负债股利151.stock dividend股票股利152.dividend irrelevance theory股利无关论153.dividend relevance theory股利相关论154.private corporation私募公司未上市公司155.book-value weight账面价值权数156.market value weight市场价值权数157.target value weight目标价值权数158.business risk经营风险159.financial risk财务风险160.degree of operational leverage经营杠杆系数161.degree of financial leverage财务杠杆系数162.total degree of leverage总杠杆系数163.debt holder债权人164.net profit theory净收益理论165.operating profit theory营业收益理论166.trade-off theory权衡理论167.EPS analysis of financing融资的每股收益分析168.optimal capital structure最佳资本结构169.firm valuation企业价值评估170.integrated value企业的整体价值171.economic value企业的经济价值172.current market value现时市场价值173.fair market value公平市场价值174.entity value实体价值175.equity value股权价值176.going-concern value持续经营价值177.liquidation value清算价值178.minor equity value少数股权价值179.controlling equity value控股权价值180.premium of controlling rights控股权溢价181.dividend discount model股利折现模型182.option-pricing model期权定价模型183.discounted cash flow valuation折现现金流量模型184.book value 账面价值185.market value市场价值186.liquidation value 清算价值187.stand-alone risk and rates of return单项资产的风险和报酬188.probability概率189.expected value190.variance方差191.standard deviation标准差192.coefficient of variation(CV)变化系数193.portfolio risk and return投资组合的风险和报酬194.expected rate of return预期报酬率195.correlation相关性196.perfectly positive correlation完全正相关197.perfectly negative correlation完全负相关198.no correlation不相关199.coefficient of correlation相关系数200.co-variance协方差201.efficient set有效集202.capital market line资本市场线203.equilibrium均衡点204.systematic risk (market risk, non-diversifiable risk) 系统风险205.non systematic risk (company-specific risk, diversifiable risk)非系统风险206.capital asset pricing model (CAPM) 资本资产定价模型207.security market line证券市场线208.opportunity cost of capital资本的机会成本209.required rate of return on investment投资的必要报酬率210.net present value (NPV) 净现值211.profitability index (PI) 现值指数212.internal rate of return (IRR) 内含报酬率213.payback period (PP) 回收期214.accounting rate of return (ARR)会计收益率215.cash flows现金流量216.cash outflows现金流出量217.cash inflows现金流入量218.operating cash flows营业现金流量219.cash costs付现成本220.salvage value残值221.relevant cost相关成本222.irrelevant cost非相关成本223.differential cost差额成本224.future cost未来成本225.replacement cost重置成本226.opportunity cost机会成本227.sunk cost沉没成本228.historical cost过去成本229.book cost账面成本230.eplacement decision of fixed asset固定资产更新决策231.average annual cost of fixed asset固定资产的平均年成本232.adjusted cash flow method调整现金流量法233.adjusted discount rate method风险调整折现率法234.weighted average cost of capital加权平均资本成本235.project risk项目风险236.project systematic risk项目系统风险237.comparable firms可比企业238.transaction demand交易性需要239.precautionary demand预防性需要240.speculative demand投机性需要241.the management of cash receipts and expenditures现金收支管理242.use cash floats使用现金浮游量243.accelerate cash receipts加速收款244.defer the disbursement of payables推迟应付款的支付245.optimal cash balance最佳现金持有量246.cost analysis model成本分析模式247.opportunity cost机会成本248.management cost管理成本249.stock-out cost短缺成本250.inventory model存货模式251.transaction cost交易成本252.random model随机模式253.the management of accounts receivable应收账款管理254.credit policy信用政策255.credit term信用期间256.credit standard信用标准257.cash discount policy现金折扣政策258.the ages of accounts receivable应收账款账龄259.collection policy收账政策260.inventory management存货管理261.acquisition cost取得成本262.ordering cost订货成本263.purchase cost购置成本264.storage cost储存成本265.fixed cost固定成本266.variable cost变动成本267.basic economic order quantity model (EOQ model) 经济订货量基本模型268.extended economic order quantity model经济订货量扩展模型269.ordering lead time订货提前期270.safety stocks保险储备271.reorder points 再订货点272.bond ratings债券评级273.convertibles可转换证券274.convertible bonds可转换债券275.conversion price转换价格276.conversion ratio转换比率277.conversion period 转换期278.call provisions赎回条款279.non-callable period不可赎回期280.callable period赎回期281.call price赎回价格282.call conditions赎回条件283.put provisions回售条款284.force conversion provision强制性转换条款285.Leases租赁286.lease contract租赁合约287.lesser出租人288.lessee承租人289.operating leases经营租赁290.financial leases (capital leases) 融资租赁291.direct leases直接租赁292.leveraged leases杠杆租赁293.sale and lease-back售后租回294.the break-even lease income for lesser出租人的损益平衡租金295.cancellable leases可撤销租赁296.non-cancellable leases不可撤销租赁297.off-balance sheet financing表外融资298.working capital policies营运资本政策299.current asset investment policies营运资本持有政策300.current asset financing policies营运资本筹集政策301.distributions to shareholders/dividend distribution利润分配302.cash dividend现金股利303.asset (property) dividend财产股利304.liability dividend负债股利305.stock dividend股票股利306.residual dividend policy剩余股利政策307.constant or continuing growth dividend policy固定或持续增长的股利政策308.constant payout ratio dividend policy固定股利支付率政策309.target capital structure目标资本结构310.stock splits股票分割311.cost of capital资本成本312.specific cost of capital (respective component cost of capital) 个别资本成本313.weighted average cost of capital加权平均资本成本314.options期权315.option contract期权合约316.underlying asset标的资产317.maturity date到期日318.the exercise of options期权的执行319.call option看涨期权320.put option看跌期权321.american option美式期权322.european option欧式期权323.long position多头324.short position空头325.in the money实值期权326.out of the money虚值期权327.at the money 平价期权328.principles of valuing options期权估价原理329.real options(实物期权)330.purchased material外购材料331.purchased fuel外购燃料332.purchased power外购动力333.wages and welfare工资及福利费334.depreciation expense折旧费335.taxes税金336.other expenditures其他支出337.manufacturing cost生产经营成本338.selling expenses销售费用339.general administrative expenses管理费用340.inventorial costs计入存货的成本341.capitalized costs资本化成本342.expensed costs费用化成本343.product cost产品成本344.period cost期间成本345.cost object成本对象346.direct cost直接成本347.indirect cost间接成本348.effective cost实际成本349.standard cost标准成本350.total cost全部成本351.variable cost变动成本352.product-based costing system产品基础成本计算制度353.activity-based costing system作业基础成本计算制度354.absorption rate分配率355.finished goods完工产品356.work-in-process在产品357.equivalent units约当产量358.joint products联产品359.by-products副产品360.Product costing品种法361.batch costing分批法362.process costing分步法363.cost behavior成本性态364.fixed cost固定成本365.variable cost变动成本366.hybrid cost混合成本367.cost-volume-profit analysis本-量-利分析368.marginal contribution边际贡献369.contribution margin边际贡献率370.break-even analysis盈亏临界分析371.margin of safety安全边际372.the rate of margin of safety安全边际率373.sensitivity analysis敏感分析374.coefficient of sensitivity敏感系数375.ideal standard cost理想标准成本376.normal standard cost正常标准成本377.standard direct material cost直接材料标准成本378.standard direct labor cost直接人工标准成本379.standard fixed overhead固定制造费用标准成本380.variance analysis差异分析381.Performance evaluation业绩评价382.cost centre成本中心383.responsibility cost责任成本384.controllable cost可控成本385.non-controllable cost不可控成本386.profit centre利润中心387.Investment centre投资中心。
诺德克斯堡迪拜医疗设备有限公司的气泡伸展泵产品说明说明书
●●●●●●●●●●●●●●●1)●●●●●●●●5 – 7891112 – 17Stand-by pumpOperation mode DrivePage12/24 V D C12/24 V D C L C m o t o r230 V A C100 V /50-60 H zS t e p p e r m o t o rS h o r t t i m e o p e r a t i o nI P 54I P 54, a d j u s t a b l eC o n t i n u o u s o p e r a t i o n115 V A CFlow (ml/min)SR10/30SR10/50SR10/100SR18SR25MotorBracketLidTubingRollers Pump bodyMotor with gear boxroller carrier with spring Tubing with connectorsRolling bandClampr a w i n g 2018K A 01-05-0•Speed reduction through frictional connection from the motor shaft to the rollers.•Very simple construction with the use of few parts only.•Easy change of the cassette.•Generally 3 rollers.•For short time operation only.•If the pump is stored longer than three months, we recommend to take the cassette off the motor shaft and store it separately.•Different motors available(DC, low cost DC, AC and stepper motor).•Peristaltic pump with QuiXchange system •Tube exchange without tooling within seconds •Spring loaded roller carrier with two rollers for extre-mely long durability •Optional …sequencer“ for flow adjustment •AC-motorSeries SR18•Protection of the tubing due to spring loaded rollers and guiding side rollers.•Quick and easy change of the tubing.•Roller carrier with two rollers.•Also suitable for continuous operation, depending on the drive.•If stored longer than three months, we recommend to remove the tubing.•Different gear motors available (DC, AC and stepper motor).Series SR25Pump body1) We recommend to roughen the shaft in axial direction when changing the cassette(sand paper grit size 150).Norprene ®, PharMed BPT ®Norton Co. Reg. TM’sSR10SR18SR25Flow16 – 55 ml/min2) Note:The indicated values are average measured with water.The actual values depend on different parameters like quality and age of tubing, pressure of tubing beds, pressure ratios, viscosity, etc. (max deviation ± 30%)Please see page 4 for recommended running times andSR10/30 DC angled fixing(straight without drawing)Interference suppression according to EN 55011B (CE-conform)SR10/30 ACI n c h e s a r e s h o w n i n ( )W e i g h t 0,11 k gWeight 0,39 kgFixingInner tubingØFlow 230/50 Hz mm ml/minstraight 1,0 20300561angledCurrent consumption depending on the tubing diameter, at free flow and nominal voltage 12 V DC: 180 – 300 mA24V DC: 90 – 150 mA 230 V/50 Hz: 190 mA2030...Stock programme230 V/50 Hz, 12/24 V low cost DC For short time operation only D r a w i n g 11236I n c h e s a r e s h o w n i n ( )2) Note:The indicated values are average measured with water.The actual values depend on different parameters like quality and age of tubing, pressure of tubing beds, pressure ratios, viscosity, etc. (max deviation ± 30%)Please see page 4 for recommended running times and SR10/30 DC Angled flangeSR10/30 DC Straight flangew i n g 2030K A 04-04-00Weight 0,16 kgWeight 0,16 kgFixingInner tubing ØFlow 2)mm ml/minstraight 1,0 20angled straight 1,537angled straight 2.055angled straight 2,580angledCurrent consumption depending on the tubing diameter, at free flow and nominal voltage 12 V DC: 160 – 260 mA24 V DC: 80 – 130 mAFlow20 – 80 ml/min12/24 V Direct current motor For short time operation only 1) other tubing materials on request2) Note:The indicated values are average measured with water.The actual values depend on different parameters like quality and age of tubing, pressure of tubing beds, pressure ratios, viscosity, etc. (max deviation ± 30%)Please see page 4 for recommended running times and D r a w i n g 2030K A 02-04-00I n c h e s a r e s h o w n i n ( )Weight 0,08 kg1) Option: 14-pole connecting cable with plug,rocker switch for clockwise and lefthanded runningPotentiometer and speed-push-button, part number 29000702Flow0,5 – 20 ml/min24 V DC with stepper motor For short time operation only Circuit board recommended for test purposes4 possible operating methods • internal speed selection via jumper –option with wiring set 1)• external speed selection • analog input via pc• digital input (clocked pulse)Features• speed pre-selection• clockwise-, counter clockwise operation • instant priming• selective operating method80 (3,15)50 (2)42 (1,65)72 (2,8)ɂ3,6(0,14)* Delay fuse to be used.1) Note:The indicated values are average measured with water.The actual values depend on different parameters like quality and age of tubing, pressure of tubing beds, pressure ratios, viscosity, etc. (max deviation ± 30%)Please see page 4 for recommended running times and Flow 52 – 220 ml/minSR10/50 ACSR10/50 DCCurrent consumption depending on the tubing diameter, at free flow and nominal voltage 12 V DC: 0,4 – 0,54 A24 V DC: 0,2 – 0,27 A 230 V/50 Hz: 0,35 AOption:Straight flange for flush mounting part number 20501 ...Recommended inference suppression according to EN 55011 B (CE-conform)12/24 V DC – with additional circuit board (on request)2050...Stock programme2) Note:The indicated values are average measured with water.The actual values depend on different parameters like quality and age of tubing, pressure of tubing beds, pressure ratios, viscosity, etc. (max deviation ± 30%)Please see page 4 for recommended running times and Flow 1300 – 3000 ml/minSR10/100 DC With bracketCurrent consumption at free flow and nominal voltage12 V DC: 3,0 A 24 V DC: 1,5 A 230 V/50 Hz: 0,4 AOption:Recommended inference suppression according to EN 55011 B (CE-conform)12/24 V DC – with additional circuit board (on request)1) other tubing material on requestSR10/100 ACPeristaltic Pumps Series SR101) Note:The indicated values are average measured with water.The actual values depend on different parameters like quality and age of tubing, pressure of tubing beds, pressure ratios, viscosity, etc. (max deviation ± 10%)Please see page 4 for recommended running times and general data.Flow5 – 50 ml/min230 V/50 Hz 2), synchronous gear motor Suitable for continuous running Peristaltic Pumps SR18 with QuiXchange SystemFeaturesSequencer to adjust on/off-time (0% –100%)Nominal speedQuiXchange ml/minTubing only 9201855192018551920185529201855292018553920185539201855492018554ml/minTubing only 92018502920185022018...Stock programmeOptions: mounting clip Art. Nr. 29027360threaded tubing connector Art. Nr. 29027298Tubing QuiXchange2) Note:The indicated values are average measured with water.The actual values depend on different parameters like quality and age of tubing, pressure of tubing beds, pressure ratios, viscosity, etc. (max deviation ± 10%)Please see page 4 for recommended running times and Flow2 – 287 ml/min12/24 V, Direct current motor D r a w i n g 2025K A 04-04-00I n c h e s a r e s h o w n i n ( )D r a w i n g 2025K A 05-04-00I n c h e s a r e s h o w n i n ( )Bore pattern to fit in a housing see page 14.SR25, 10 to 80 rpm Direct current motorSR25–170 rpm 1)Direct current motorMaterial of tubing connectors:Tubing Silicon: for all Ø PVCTubing Novoprene:Ø 1,6/3,2 mm – PVCØ 4,1/4,8 mm – PPOption:Recommended inference suppression according to EN 55011 B (CE-conform)2025...Stock programme1) Pump with counter bearing2) Note:The indicated values are average measured with water.The actual values depend on different parameters like quality and age of tubing, pressure of tubing beds, pressure ratios, viscosity, etc. (max deviation ± 10%)Please see page 4 for recommended running times and Flow6 – 746 ml/minFor short time operation onlyMaterial of tubing connectors:Tubing Silicon: for all Ø PVCTubing Novoprene:Ø 1,6/3,2 mm – PVC2025...Stock programmeD r a w i n g 2025K A 03-04-00I n c h e s a r e s h o w n i n ( )D r a w i n g 2025K A 02-04-00I n c h e s a r e s h o w n i n ( )Bore pattern to fit in a housing see page 14.SR25–500 rpm shaded pole motor 1)SR25, 30 to 170 rpm shaded pole motor1) Pump with counter bearing 3) Fan2) Note:The indicated values are average measured with water.The actual values depend on different parameters like quality and age of tubing, pressure of tubing beds, pressure ratios, viscosity, etc. (max deviation ± 10%)Please see page 4 for recommended running times andBore pattern to fit in a housing(not illustrated)SR25, 1to 10 rpm Synchronous motorElectrical wiring:Option:Flow0,2 – 14 ml/minSuitable for continuous operation Material of tubing connectors:Tubing Novoprene:Ø 1,6/3,2 mm – PVCØ 4,1/4,8 mm – PP2025...Stock programme2) Note:The indicated values are average measured with water.The actual values depend on different parameters like quality and age of tubing, pressure of tubing beds, pressure ratios, viscosity, etc. (max deviation ± 10%)Please see page 4 for recommended running times and I n c h e s a r e s h o w n i n ( )1) Option: 200 mm 14-pole connecting cable with plug,rocker switch for clockwise and lefthanded runningPotentiometer and speed-push-button, part number 29000702Flow0,1 – 430 ml/min24 V DC with stepper motorCircuit board recommended for test purposes II III IV1,6 – 40 rpm 6 – 150 rpm12 – 300 rpmMax. flow 2) ml/min 0,3 – 7 1 – 262 – 5520252200202521001 – 30 4 – 1109 – 21020252201202521012 – 609 – 21520 – 430Peristaltic Pumps SR25-S3004 possible operating methods • internal speed selection via jumper –option with wiring set 1)• external speed selection • analog input via pc• digital input (clocked pulse)Features• speed pre-selection• clockwise-, counter clockwise operation • instant priming• selective operating method1600384pin assignment X3X1+/--/+X2J1J2X380 (3,15)50 (2)42(1,65)72 (2,8)ɂ3,6(0,14)1) Note:The indicated values are average measured with water.The actual values depend on different parameters like quality and age of tubing, pressure of tubing beds, pressure ratios, viscosity, etc. (max deviation ± 10%)Please see page 4 for recommended running times and general data.Synchronous motor SR25 – adjustable plastic housingwith synchronous motor (for wall fastening)Synchronous motor Voltage:230 V/50 Hz Power consumption:7,5 WTubing:Novoprene Pressure height:max. 10 m H 2O Suction height:max. 8 m H 2OEMC guide lineInterference resistance according to EN 50082-1Emitted interference according to EN 55011 BFlow0,2 – 21 ml/minPeristaltic Pumps SR25 - AdjustableD r a w i n g 16894I n c h es a r e s h o w n i n ( )Test-set with all tubings 92025857500 rpm 920258011)–––Rolling bandPart number29008965ClampPart number29020480SiliconNovoprenePharMed BPT ®Peristaltic Pumps SR251) Clockwise directionTubing PropertiesN = Novoprene Nor = Norprene ®Ph = PharMed BPT ®S = SiliconV = Viton ®The material resistance is influenced by temperature and concentration of the medium.The data have to be seen as indications and do not guarantee the material properties.A =small or no effectB =minor or moderate effectC =severe effectD =no reliable data, please test before use -=no available dataNorprene ®, PharMed BPT ®, Viton ® Du Pont, Norton Co. Reg. TM’s,。
欧卡2变速箱设置
SiiNunit{accessory:transmission:data : 24:speed:r.ken108.transmission{ name: "24 SPEED TOP LEVEL V42"price: 20000unlock: 0icon: "transmission:generic"# info from oscar# Differential Ratio: 2.47, 2.64, 2.85, 3.08, 3.40, 3.67differential:ratio: 3.48# reverse gearratios:reverse[0]: -27.50ratios:reverse[1]: -21.00ratios:reverse[2]: -16.50ratios:reverse[3]: -10.00# forward gears# based on email from Scaniaratios:forward[0]: 32.3ratios:forward[1]: 27.28ratios:forward[2]: 23.04ratios:forward[3]: 19.46ratios:forward[4]: 16.44ratios:forward[5]: 13.88ratios:forward[6]: 11.72ratios:forward[7]: 9.90ratios:forward[8]: 8.36ratios:forward[9]: 7.06ratios:forward[10]: 5.97ratios:forward[11]: 5.04ratios:forward[12]: 4.26ratios:forward[13]: 3.59ratios:forward[14]: 3.04ratios:forward[15]: 2.56ratios:forward[16]: 2.17ratios:forward[17]: 1.83ratios:forward[18]: 1.54ratios:forward[19]: 1.30ratios:forward[20]: 1.10ratios:forward[21]: 0.93ratios:forward[22]: 0.79ratios:forward[23]: 0.66retarder: 5}transmission:names : .names{neutral: "N"forward[0]: "CL" # climbing L forward[1]: "CM" # climbing M forward[2]: "CH" # climbing H forward[3]: "1L"forward[4]: "1H"forward[5]: "2L"forward[6]: "2H"forward[7]: "3L"forward[8]: "3H"forward[9]: "4L"forward[10]: "4H"forward[11]: "5L"forward[12]: "5H"forward[13]: "6L"forward[14]: "6H"forward[15]: "7L"forward[16]: "7H"forward[17]: "8L"forward[18]: "8H"forward[19]: "9L"forward[20]: "9H"forward[21]: "H1"# High 1forward[22]: "H2"# High 2forward[23]: "H3"# High 3reverse[0]: "LRL" # Low Rev L reverse[1]: "LRH" # Low Rev H reverse[2]: "HRL" # Hi Rev L reverse[3]: "HRH" # Hi Rev H}}siinunit{变速箱设置数据文件名称:24_speed_r.ken108(适用的车型,通常是车头mod里“def-vehicle-truck”路径的下一级文件夹名称).transmission {name:“top level V42 24速”(在游戏中卡车自定义配置的变速箱设置界面中显示的变速箱名称)价格:20000改装这个变速箱需要花费的金钱unlock:0本变速箱的接所能及“: GENERIC传输”图标:奥斯卡# info from本mod是基于oscar这个变速箱配置文件创造的,和下一句是说明文,可有可无2.47, 2.64, 2.85,3.08, 3.40, 3.67差比:3.48主减速器齿轮传动比,这是最重要的的数值,关系到最高速度和最大轮上扭矩的实现,这个数值越小最高速度越大,反之,轮上扭矩越大。
A crack opening stress equation for fatigue crack growth
(~Smax/2Oo)]i/a
(3)
Int Journ of Fracture
24 (1984)
R132
A 1 = (0.415 - 0.071~)
Smax/O °
(4)
A2 = 1 - A0 - AI - A3
(5) (6)
A 3 = 2A 0 + A 1 - 1
The flow stress ~ is taken to be the average between the uniaxial O . . yield stress and unlaxlal ultimate tensile strength of the material• The variation of normalized crack opening stresses S /S with m x stress ratio R for various applied stress levels S /~ °s s~own in Figure 1 under plane stress (e = i) conditions . T~ax curves were calo culated from (i) and (2). At low R ratios, the applied stress level dramatically affected crack opening stresses (large spread between curves), but at high R ratios the applied stress level had little influence. For high R ratios, S /S approaches the S . /S ratio (dashed line) • The influence of max . " o applied stress i ~mln more pro-evel was max nounced under plane stress conditions than under plane strain (e = 3) conditions (not shown). The influence of constraint on crack opening stresses is shown in Figure 2. The normalized crack opening stress is plotted against stress ratio for S = ~ /3. The curves, calculated from (i) and (,2), show how S /S max varles a ° conditions change from simulated plane stress (a o iTa~o simulated plane strain (e = 3). At any ratio, S /S values are lower for higher values of ~. For high R ratios O aX and ~Igh ~ values, calculated S /S values from (i) were slightly lower than the S . /S ratio ~dasm~Xd line). For these cases, S ml o should be set equa~ toma~mi n. For a material of a given thickness and: loading, the precise effect of three dimensional constraint on crack opening stresses is, as yet, unknown. However, at high values of AK (plastic zone sizes greater than plate thickness), plane stress conditions (a = i) should exist. But at low values of AK (plastic zone sizes less than about i0 percent of plate thickness), plane strain conditions (a = 3) should prevail. For simplicity, a single value of constraint a is being used, at present, to approximate the conditions in a specimen of a given thickness. A value of e, in (3) and (4), is selected to correlate crack growth rate data on a AK == plot under constant amplitude loading at various R ratios and stress levels. The effective stress-intensity factor range is given by
Ratios, Proportions, and the Geometric Mean61–比例,比例,和几何平均
6.1 – Ratios, Proportions, and the Geometric Mean
Example 3: The measures of the angles in Triangle CDE are in the extended ratio of 1:2:3. Find the measures of the angles.
6.1 – Ratios, Proportions, and the Geometric Mean
An equation that states that two ratios are equal is called a proportion.
The numbers b and c are the means of the proportion. The numbers a and d are the extremes of the proportion.
6.1 – Ratios, Proportions, and the Geometric Mean
6.1 – Ratios, Proportions, and the Geometric Mean
MeasurementChanging:测量的变化
Real-World Link
A swordfish reaches a maximum size of 14 feet and almost 1,200 pounds.
Source: Sport Fishing Central
k. FISH A swordfish can swim at a rate of 60 miles per hour. How many feet per hour is this? 316,800 ft/h
=
15
qt
·
_ 1 gal4 qt NhomakorabeaDivide out common units, leaving the desired unit, gallons.
=
15
·
_1
4
gal
or
3.75
gal
Multiplying dividing 15
15 by
by 4.
_1
4
is
the
same
as
Lesson 6-4 Measurement: Changing Customary Units 299
Weight (T) 1 4 5 8
1. Copy and complete the ratio table.
The first two ratios are done for you.
×4
See margin.
Tons
1
4
5
8
Pounds 2,000 8,000
To produce equivalent ratios, multiply the quantities in each row by the same number.
Sec._3.2 数学英语词汇
46滑 雪 度 假 地 47威 斯 勒 雪 山 48黑 梳 山
49 50 51 52 53 54 55 56 57
Sags in the middle Dream Maker Dolomite sculpture Wapiti Valley Ski Area Inclined Advanced Slope Roof truss Equilateral triangle Inscribed Hu wei ze Bai yun shi diao su Ma lug u hua xue qu Qu xiang yu ….de Xian jing de xie po Wu jia Deng bian shan jia xing Nei que de
49 50护 卫 者 51白 云 石 雕 塑 52马 鹿 谷 滑 雪 区 53趋 向 于…的 54先 进 的 斜 坡 55屋 架 56等 边 三 角 形 57内 切 的
31石 油 钻 塔 32原 油 33天 然 气 34拉 线 35帆 板 运动 36斯 夸 米什 人 坑
37 38 39 40
Upwind Original destination Toonik tyme Nunavut
37逆 风 38原 目 的地 39 40努 勒 维特(位 于加 拿 大) 41冰 高 尔 夫 42发 球 区 44轨 道 45峰 2峰 的 缆 车 (某世 界 最 长 缆 车)
29 30
29微 风 30模 型 的 问 题
31 32 33 34 35 36
Oil rigs Crude oil Natural gas Guy wire Windsurfing Squamish pit
Shi you zhuan ta Yuan you Tian ran qi La xian Fang bang yuan dong Si kua mi shen ren keng Li feng Yuan mu di di Lv le wei te(wei yu jia na da) Bing gao er fu Fa qiu qu Gui dao
Ratios, Rates, and Proportions
RATIOS AND PROPORTIONSINSTRUCTION SHEETRatiosA ratio is a comparison of two quantities that have the same units. You can express a ratio in any one of the following ways:18 18:5 18 to 55Example #1: If one store has 360 items and another store has 100 of the same items, express the ratio of the items.360 or 360:100 or360 to 100100Ratios are usually written in lowest terms; therefore, the above example would reduce in this way: 360 ÷ 20 (What is the largest number you100 ÷ 20 can divide both values by?)185Example #2:John earns $350 a week. His take-home pay, however, is $295.What is the ratio of his gross pay to his take-home pay.350 = 70295 59RatesA rate is a comparison of two quantities that have different units. Rates are usually expressed in the fractional form.Example: Francine paid $16 for her 12-month subscription to Better Homes and Gardens magazine. Express as a rate.$16.00 = $4.0012 magazines 3 magazinesIf Francine wants to know how much she pays for each (1) magazine, she can divide $4 by 3 magazines. This will give her the price per magazine (also called the unit rate).$4.00 = $1.33/magazine3ProportionsA proportion is a statement that two ratios or rates are equal. It can be given as a sentence in words, but most often a proportion is an algebraic equation.The arithmetic equation 3 = 21 is a proportion because its cross5 35products are equal.3 × 35 = 105 and 5 × 21 = 105Proportions are solved by using this cross-product rule.Example #1: 4 = X Example #2: 72 = 129 36 1.5 x4× 36 = 9x 72x = 1.5 × 12144 = 9x 72x = 18144= x x = 189 7216 = x x = .25 or ¼Applied Proportion ProblemsMany problems can be solved by setting up a direct proportion (an increase in one quantity leads to a proportional increase in the other quantity) or by setting up equivalent rates.Example: In one day you earn $75 for 8 hours of work. If you work 37.5 hours for the week, what will your weekly pay be?8 hours = $75 8 hours = 37.5 hours 37.5 hours x $75 x8x = 75 × 37.5 8x = 75 × 37.58x = 2812.5 8x = 2812.5orx = 2812.5 x = 2812.58 8x = $351.56 x = $351.56RATIOS AND PROPORTIONSPRACTICE SHEETA. Write each ratio as a fraction in lowest terms.1. 2 to 4 6. 3 to 12 11. 35:72. 15 7. 7: 4 12. 820 288. 183. 6:18 12 13. 24 to 964. 21:15 9. 20:16 14. 9:275. 12 10. 15 to 36 15. 1118 88B. Write each of the following rates as a unit rate.1. 3 Tbsp2. 135 pitches2 tsp 45 strikes3. 128 miles4. 2250 pencils4 hours 18 boxes5. $4506. 2500 meters18 shares 15 seconds7. $5,082 8. 750 gallons475 sq.yds. 14 minutesC. Solve each proportion and give the answer in simplest form.1. 6 : 8 = n : 122. 2 = 87 n3. n = 114. 4 : n = 6 : 96 35. 3 = 26. 0.4 = 12n 5 1.5 n7. 2 ½ : 3 ½ = n : 2 8. 1: 2 = n : 99. 4 to 8 = 15 to n 10. 18 : n = 3 :1111. 5 = n 12. 12 = n6 30 40 2513. 8 :19 = 14:n 14. 10 = 2n 1.715. 24 : ¼ = n : ⅓16. 44 to 121 = n to 11D. Solve by using a proportion. Round answers to the nearest hundredth if necessary.1. You jog 3.6 miles in 30 minutes. At that rate, how long will it take you to jog 4.8 miles?2. You earn $33 in 8 hours. At that rate, how much would you earn in 5 hours?3. An airplane flies 105 miles in ½ hour. How far can it fly in 1 ¼ hours at the same rate of speed?4. What is the cost of six filters if eight filters cost $39.92?5. If one gallon of paint covers 825 sq. ft., how much paint is needed to cover 2640 sq. ft.?6. A map scale designates 1” = 50 miles. If the distance between two towns on the map is 2.75 inches, how many miles must you drive to go from the first town to the second?7. Bob is taking his son to look at colleges. The first college they plan to visit is 150 miles from their home. In the first hour they drive at a rate of 60 mph. If they want to reach their destination in 2 ½ hours, what speed must they average for the remainder of their trip?8. Four employees can wash 20 service vehicles in 5 hours. How long would it take 5 employees to wash the same number of vehicles?9. These two figures are similar. Use a proportion to find the length of side n.20 m 12 m 30 m n。
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24. Interpretation of financial statementsChapter Overview ü RatiosRatiosRatio analysisRequirement in FA:p Familiar with the ratiosp Understand the change in Ratiop More Ratio analysis for real companies in markets, Pls. refer to 思考特财经(公众号) for learningImportance and purpose of interpretation of financial statements üThe financial statements of a company are designed to provideusers with information about its performance and financialposition. The figures by themselves, however, are notparticularly useful and it is only through comparisons (usuallywith ratios) that their significance can be established. This willthen enable the end user to make an informed decision.üComparisons may be made with:•Previous financial periods•Similar businesses•Industry averages.Ratio analysis I. ProfitabilityII. LiquidityIII. EfficiencyIV. PositionProfitability ratiosüPurposeProfitability ratios measure the company’s use of its assets and control of its expenses to generate an acceptable rate of return.Profitability ratiosRatiosüGross profit margin•The gross profit margin measures how well a company is running its core operations. The gross profit percentageshould be similar from year to year for the same company.A significant change may be due to:• A change is sales price• A change in product mix•An incorrect inventory valuation (will affect 2 years)• A change in cost of sales due to efficiency or price movements.Profitability ratiosüOperating profit margin•Profit before interest and taxation (PBIT) is used because it avoids distortion when comparisons are made between twodifferent companies where one is heavily financed by means of loans, and the other is financed entirely by ordinary sharecapital.•The extra consideration for the operating margin over the gross margin is how well the company is controlling itsoverheads.Profitability ratiosüOperating profit marginA significant change (especially a fall) may be due to:•The reasons for the movement in the gross profit margin as stated above•Changes in control over administration and distribution costs•One off expenses e.g. advertising.Profitability ratiosüReturn on capital employed* or total assets less current liabilities•Total equity includes share capital, share premium and reserves. Return on capital employed measures how efficientlya company uses its capital to generate profits. A potentialinvestor or lender should compare the return to a target returnor a return on other investments/ loans.Profitability ratiosüReturn on capital employedOther reasons for a significant change may include:•New assets acquired during the year which are not yet running at capacity•Assets aging•Revaluations.Profitability ratios üReturn on equityLiquidity ratiosüPurposeLiquidity measures the availability of a company’s cash to pay its short term debts.Liquidity ratiosRatiosüCurrent ratio (working capital ratio)Liquidity ratiosüQuick ratio•This is similar to the current ratio except that it omits the inventories figure from current assets. This is becauseinventories are the least liquid current asset that a company has, as it has to be sold, turned into receivables and then the cashhas to be collected.• A ratio of less than 1:1 could indicate that the company would have difficulty paying its debts as they fall due.Efficiency ratiosüPurposeEfficiency measures how well the company uses its assets to generate profit, revenue and cash.Efficiency ratios üWorking capital cycleEfficiency ratios üWorking capital cycleEfficiency ratiosüInventory turnover period (days)•This ratio measures the number of days inventories are held by a company on average.•This figure will depend on the type of goods sold by the company.• A company selling fresh fruit and vegetables should have alow inventory holding periods as these goods will quicklybecome inedible.• A manufacturer of aged wine will by default have very long inventory holding periods. It is important for a company tokeep its inventory days as low as possible, subject of courseto being able to meet its customers' demands.Efficiency ratiosüInventory turnover period (days)A significant change may be due to:• A change in type of inventory held•Improved or worsened inventory controls•Changes in the popularity of certain inventory items.Efficiency ratiosüReceivables collection period (days)•This ratio shows, on average how long it takes for the trade receivables to settle their account with the company. Theaverage credit term granted to customers should be takeninto account as well as the efficiency of the credit controlfunction within the company.A significant change may be due to:-Increased/ decreased credit terms offered to customers-Change in the mix between cash and credit transactions-Better/ worse credit control.Efficiency ratiosüPayables payment period (days)•This ratio is measuring the time it takes the company to settle its trade payable balances. Trade payables provide thecompany with a valuable source of short term finance, butdelaying payment for too long a period of time can causeoperational problems as suppliers may stop providing goodsand services until payment is received.A significant change may be due to:-Increased/ decreased credit terms from suppliers-Increase/ decrease in cash-Better/ worse management of the payables ledger.Efficiency ratiosüAsset turnover ratio•This ratio measures the efficiency of the use of net assets in generating revenue. Ideally the ratio should be increasing,but we need to be careful when making assessments basedon this ratio, because the company could have bought lots ofassets late in the year and they simply have not had muchtime to start generating revenue. If this is the case, the ratiowill almost certainly fall, but this is not a reflection on theability of the assets to generate revenue, it is simply a timing issue.Efficiency ratios üLink between ratios --- ROCEEfficiency ratiosüLink between ratios•Operating profit margin × Asset turnover ratio = Return on capital employedPosition ratiosüPurposePosition ratios consider the company’s long term solvency and its capital structure.Position ratiosRatiosüInterest cover•The interest cover ratio considers the number of times a company could pay its interest payments using its profitfrom operations. The main concern is that a company doesnothave so much debt finance that it risks not being able tosettle the debt as it falls due.Position ratiosüGearing•Gearing is concerned with the long-term financial stability of the company. It is looking athow much the company isfinanced by debt. Debt is cheaper than equity as interest istax deductible but the higher the gearing ratio, the lesssecure the financing of the company will be and possibly thecompany’s future.Limitations of ratio analysisüIssueThe usefulness of ratio analysis is limited by distorting factors.For example:•Inflation when comparing to previous years•Different accounting policies/classifications when comparing to different companies e.g. ROCE higher if use cost modelsfor assets•Lack of information/ breakdown of information•Trading may be seasonal within a period (or over differentaccounting periods)•Year end figures not representative because they include year end accounting adjustments and may be subject to 'windowdressing' (‘window dressing’ is the intentional manipulationof year end figures)Limitations of ratio analysisüIssueThe usefulness of ratio analysis is limited by distorting factors.For example:•Related party transactions make the ratios incomparable with other companies (i.e. selling to your friend at a discount willhave an adverse effect of your overall margin vs. acompetitor)•Different ratio definitions/formula used by differentcompanies•Different companies in the same business may have different risk profiles or specific factors affecting them, makingindustry comparisons less meaningful•Where financial statements are manipulated, this is oftendone to improve key ratios• A new company will have no comparatives to compare with.Lecture example 1Priestly has the following working capital ratios:20X220X1 Quick ratio 1.10.9 Receivables days65 days75 days Payables days50 days45 days Inventory turnover36 days41 daysLecture example 1Which of the following statements is correct?A.Priestly’s credit control has worsened in 20X2B.Priestly’s inventory is at greater risk of obsolescence in 20X2than 20X1C.Priestly is paying its suppliers more quickly in 20X2 than in20X1D.Priestly’s working capital management and liquidity haveimproved in 20X2AnswersAnswer to Lecture Example 1DA is incorrect because Priestly’s credit control has improved in20X2 (they are collecting debts from customers more quickly. B is incorrect because Priestly is selling inventory more quickly in20X2, making it at lower risk of obsolescence. C is incorrect because Priestly is taking longer to pay its suppliers in 20X2. D iscorrect because the quick ratio has improved from 0.9 to 1.1 and because the working capital cycle has decreased from 71 to 51 days.Lecture example 2The following extracts are from Mya’s financial statements:$ Profit before interest and tax 21,230 Interest on loan notes(2,000) Tax (5,200) Profit after tax 14,030Share capital 40,000 Share premium 10,000Reserves 26,50076,500 10% loan notes 20,00096,500Lecture example 2What is Mya’s return on capital employed?A.15%B.22%C.20%D.18%AnswersAnswer to Lecture Example 2You’re a Champion! Thanks for staying with us. You have finished this task.。