MRBA-3-3SUGPC中文资料
n-甲基-n-丙基吡咯二(三氟甲基磺酰)亚胺的化学式结构
n-甲基-n-丙基吡咯二(三氟甲基磺酰)亚胺的化学式结构全文共四篇示例，供读者参考第一篇示例：n-甲基-n-丙基吡咯二(三氟甲基磺酰)亚胺，简称MePrPG-TFMSI，是一种重要的有机合成试剂，常用于氟硅烷官能团的引入和保护，具有广泛的应用领域。
其化学式结构如下所示：MePrPG-TFMSIMePrPG-TFMSI是一种含氮杂环有机化合物，分子中含有三氟甲基磺酰基和吡咯环结构。
它的分子式为C8H14F3N2O2S，分子量为262.28g/mol，外观为无色至淡黄色液体。
MePrPG-TFMSI具有较高的热稳定性和化学稳定性，在常温下相对稳定，可以长期储存。
MePrPG-TFMSI在有机合成中起着重要的作用，主要有以下几个方面的应用：1. 氟硅烷官能团的引入：MePrPG-TFMSI是一种常用的氟硅烷官能团引入试剂，可以将三氟甲基磺酰基连接到分子中的氢原子上，形成氟硅烷结构。
这种氟硅烷结构在有机合成中具有特殊的官能团性质和化学活性，在功能材料的设计和制备中有重要应用。
2. 保护基的引入：MePrPG-TFMSI可以将三氟甲基磺酰基引入到分子中的活性位点上，起到保护基的作用。
保护基可以保护活性位点不受环境的影响，通过选择性去保护来进行化学反应，从而实现对目标产物的控制合成。
3. 亲核取代反应：MePrPG-TFMSI分子中含有活性的三氟甲基磺酰基和吡咯环结构，在亲核取代反应中可以提供反应物的亲核试剂，并且通过氟硅烷官能团的引入，增加了反应物的亲核性和亲电性，促进了反应的进行。
4. 光电材料的合成：MePrPG-TFMSI在光电材料的合成中具有重要的应用，可以通过引入氟硅烷官能团，改变分子的电子结构和光学性质，提高光电材料的性能和稳定性。
通过对MePrPG-TFMSI结构的调整和改良，可以设计制备出具有特定功能和应用的光电材料。
MePrPG-TFMSI是一种重要的有机合成试剂，具有广泛的应用领域和潜在的发展前景。
AlphaScreen SureFire STAT3 (p-Tyr705) Assay Kits产品
AlphaScreen®SureFire®STAT3 (p-Tyr705) Assay KitsManualAssay Points Catalog #500TGRS3S50010 000TGRS3S10K50 000TGRS3S50KFor Research Use OnlyResearch Reagents for Research Purposes OnlyGeneral Information on the AlphaScreen® SureFire® p-STAT3 assayThe AlphaScreen® SureFire® p-STAT3 assay is used to measure the phosphorylation of endogenous STAT3αand STAT3βin cellular lysates. The assay is an ideal system for the screening of both modulators of receptor activation (e.g. agonists and antagonists) as well as agents acting intracellularly, such as small molecule inhibitors of upstream events. The assay will measure STAT3 phosphorylation by either cloned or endogenous receptors, and can be applied to primary cells.This assay eliminates the need for laborious techniques, such as Western blotting or conventional ELISA. It is a homogeneous assay, in that no sample washing steps are required, which allows for minimal handling, short assay times, and robotic operation if desired. The assay utilizes the bead-based Alpha Technology, and requires an Alpha Technology-compatible plate reader.Alpha Technology AlphaScreen® SureFire® Assay PrincipleAlphaScreen® SureFire® technology allows the detection of phosphorylated proteins in cellular lysates in a highly sensitive, quantitative and user friendly assay. In these assays, sandwich antibody complexes, which are only formed in the presence of analyte, are captured by AlphaScreen donor and acceptor beads, bringing them into close proximity. The excitation of the donor bead provokes the release of singlet oxygen molecules that triggers a cascade of energy transfer in the Acceptor beads, resulting in the emission of light at 520-620nm.Kit-Specificity informationThis assay kit contains antibodies which recognize the phospho-Tyr705-epitope, and a distal epitope on STAT3αand STAT3β. The proteins detected by this kit correspond to GenBank Accessions NP_644805 and NP_998827.These antibodies recognize STAT3 of human, mouse and rat origin. Other species should be tested on a case-by-case basis.Kit ContentsKit Size500 points10,000 points50,000 pointsLysis buffer (5X) 1 x 10 mL 4 x 60 mL 3 x 400 mL Activation buffer 1 x 2 mL 1 x 60 mL 1 x 300 mL Reaction buffer 1 x 2.6 mL 1 x 45 mL 1 x 225 mL Dilution buffer 1 x 1.5 mL1 x 25 mL2 x 60 mLPositive Control Lysate 1 tube to be re-dissolved in 250 µL H 2O Negative Control Lysate1 tube to be re-dissolved in 250 µL H 2OStorage conditions upon receiptThe kit buffers e.g. 5X Lysis buffer, Activation buffer and Reaction buffer should be stored at 4°C. DO NOT freeze the kit buffers – the Reaction buffer contains antibodies and freeze/thaw cycles can lead to a loss of activity.Materials Required But Not ProvidedThe AlphaScreen SureFire assay kits are optimized to work with AlphaScreen Protein A general IgG detection beads. These are available separately from PerkinElmer. The AlphaScreen Protein A general IgG detection kits contain a biotinylated rabbit IgG control, which can be used to test the instrument settings and bead performance.ItemSuggested source Catalog # Size Protein A general IgG detection kit(contains the Acceptor and Donor Beads) PerkinElmer Inc. 6760617C 6760617M 6760617R 500 pt 10,000 pt 50,000 pt Proxiplate™-384 Plus, white, shallow well assay platePerkinElmer Inc. 6008280 6008289 50/box 200/box Optiplate™-384 Plus, white, assay plate PerkinElmer Inc. 6007290 6007299 50/box 200/box TopSeal-A 384, clear adhesive sealing film PerkinElmer Inc. 6050185100/boxEnvision® or Enspire® Alpha-readerPerkinElmer Inc.--Buffer preparation and subsequent storage conditions5X Lysis bufferStore 5X Lysis buffer at 4°C. For assay, dilute 5-fold in water immediately prior to use. Discard unused buffer. Activation bufferPrecipitation will occur during storage 4°C. To re-dissolve, warm to 37°C and mix. Alternatively, Activation buffer can be stored at room temperature with no loss in activity.Reaction buffer*Keep on ice while in use. Do not freeze.Once diluted discard unused reaction buffer. AlphaScreen ® Protein A IgG KitStore at 4°C in the dark.Acceptor Mix(Reaction buffer + Activation buffer +AlphaScreen ® Acceptor beads)Immediately prior to use, dilute Activation buffer B 5-fold in Reaction buffer (e.g. take 98 μL Activation buffer and dilute in 392 μL Reaction buffer).Dilute Acceptor beads 50-fold in Acceptor mix (e.g. add10 μL Acceptor beads to 490 μL of premixed Reactionbuffer + Activation buffer).The Acceptor mix should be used immediately for best results. Excess mix should be discarded.Donor Mix**(Dilution buffer + AlphaScreen ®Donor beads)Immediately prior to use, dilute Donor beads 20-fold in Dilution buffer (e.g. add 10 μL Don or beads to 190 μLDilution buffer).The Donor mix should be used immediately for best results. Excess mix should be discarded.Assay Control lysateAfter reconstitution in 250 μL water, lysates should be frozen at -20°C in single use aliquots and used within 1 month.* Do not vortex the Reaction buffer, as vigorous mixing can damage some antibodies. ** Prepare and use Donor Mix under low-light conditions.Control Lysate informationControl lysates are prepared from A431 cells (ATCC #CRL-1555) at a concentration of approximately 1 mg/mL. The controls are supplied lyophilized, and should be reconstituted in either dd H 2O or MilliQ® H 2O. Once reconstituted, lysates should be stored frozen in single use aliquots.Negative Lysate: Prepared from A431 cells treated with EGF receptor inhibitor (2 μM AG1478)for 2 hours prior to lysis.Positive Lysate: Prepared from A431 cells treated with 200 ng/mL EGF for 10 minutes.p-STAT3 AlphaScreen® SureFire® Assay ProtocolsA. 2-Plate Assay - assay protocol for adherent cellsCell Seeding1. Seed cell s (200 μL of cells for 96 well plates, 50 μL for 384 well plates) in tissue culture plates. Incubate at 37°C overnight in serum-containing media.Cell Treatment2. Remove culture media, and stimulate the cells with 50 μL agonists prepared in serum-free media (25 µL for 384-well plates). (If testing antagonists, prior to stimulation remove culture medium and replace with 50 μL serum-free media containing antagonists (25 µL for 384-well plates)). Return cells to 37°C incubator for desired time. 1 hour is often sufficient for signal transduction inhibitors, and 5 minutes for receptor agonists.Note: Peptidic agonists and antagonists can often stick to plastic surfaces. To minimize this effect, dilute in serum-free media containing a suitable carrier protein (e.g. 0.1% IgG free BSA - Jackson Immunoresearch Cat #001-000-161).Lysate Preparation5. To lyse cells, remove medium from wells, and add freshly prepared 1X Lysis Buffer(50-100 μL fora 96 well plate, 25 μL for a 384 well plate). Agitate on a plate shaker (~350 rpm) for 10 minutes at room temperature.6. Take 4 μL of the lysate and transfer to a 384-well Proxiplate™ for assay. (Add 4 μL Control lysates to separate wells if required).SureFire Assay7. Add 5 μL of Acceptor Mix to wells. Seal plate with Topseal-A adhesive film, and incubate for 2 hours at room temperature.8. Add 2 μL of Donor Mix to wells under subdued light. Seal plate with Topseal-A adhesive film, and cover plate with foil. Incubate for 2 hours at room temperature.Note: Longer incubation may give greater sensitivity. Plates can be incubated overnight if required.9. Read plate on an Alpha Technology-compatible plate reader, using standard AlphaScreen settings.B. 1 Plate Assay - assay protocol for non-adherent cells, and for high-throughput applications. Note: the larger volumes required using this assay will result in achieving less assay points per kit. Cell Seeding1. Harvest cells by centrifugation, and re-suspend cells in HBSS at a suitable cell density. We recommend 107cells/mL as a starting point. Seed 4 μL of cells/well into a 384-well culture plate.2. If using test agents/inhibitors, add 2 μL/well of 4X inhibitors prepared in HBSS.Note: Peptidic agonists and antagonists can often stick to plastic surfaces. To minimize this effect, dilute in serum-free media containing a suitable carrier protein (e.g. 0.1% IgG free BSA - Jackson Immunoresearch Cat #001-000-161).3. Return cells to incubator at 37°C for 1-2 hours.Cell Treatment4. Stimulate cells with agonists by addition of 2 μL/well of 4X agonist stock in HBSS containing 0.1% BSA. The final volume in the wells should be 8 μL. (if no antagonists were used in step 2, stimulate the cells with 4 μL/well of 2X agonist, to give a final volume in the wells of 8 μL.)Lysate Preparation5. To lyse the cells, add 2 μL/well 5X Lysis buffer.(Add 10 μL control lysates to separate wells if required)SureFire Assay6. Add 8 μL of Acceptor Mix to wells. Seal plate with Topseal-A adhesive film, and incubate for 2 hours at room temperature.7. Add 3 μL of Donor Mix to wells under subdued light. Seal plate with Topseal-A adhesive film, and cover plate with foil. Incubate for 2 hours at room temperature.Note: Longer incubation may give greater sensitivity. Plates can be incubated overnight if required.8. Read plate on an Alpha Technology-compatible plate reader, using standard AlphaScreen settings.Representative DataWestern blot analysis (35 μg protein/lane) of phospho-STAT3 in lysates generated from either unstimulated (-) or IL6-stimulated (+) THP-1 cells, or the AlphaScreen SureFire assay (3.5 μg protein/well), using the standard 2-plate protocol.THP-1 cells (ATCC Cat# TIB-202) were harvested from growing flasks, resuspended in HBSS, and seeded at 25K cells/well in 384-well microplates. Cells were incubated for 2 hours at 37°C, and stimulated with IL-6 for 10 minutes at room temperature (left) or pre-treated with JAK inhibitor I for 2 hours at 37°C, then stimulated with IL-6 (right). Cells were lysed with 5X Lysis buffer with shaking at RT for 10 minutes, and analyzed for phospho-STAT3 using the standard 1-plate protocol.Frequently Asked Questions & TroubleshootingFor comprehensive information on assay optimization and troubleshooting, please refer to the following resources:▪ Guide to AlphaScreen® SureFire ® assay optimization ▪ AlphaScreen® SureFire ® user guideTo download these resources, and other related technical information, visit /category/alpha-surefire-kitsFor general information on AlphaScreen® SureFire ® assays, visit - +Customer CareTo contact the customer care team, please visit /ServiceCallFor more information regarding related AlphaScreen® SureFire® products andprotocols refer to:PerkinElmer web site: TGR BioSciences website: FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC PROCEDURES.This product is not for resale or distribution except by authorized distributors.LIMITED WARRANTY: PerkinElmer, Inc. warrants that, at the time of shipment, the products sold by it are free from defects in material and workmanship and conform to specifications which accompany the product. PerkinElmer Inc. makes no other warranty, express or implied with respect to the products, including any warranty of merchantability or fitness for any particular purpose. Notification of any breach of warranty must be made within 60 days of receipt unless provided in writing by PerkinElmer Inc. No claim shall be honored if the customer fails to notify PerkinElmer Inc. within the period specified. The sole and exclusive remedy of the customer for any liability of PerkinElmer Inc. of any kind including liability based upon warranty (express or implied whether contained herein or elsewhere), strict liability contract or otherwise is limited to the replacement of the goods or the refunds of the invoice price of goods. PerkinElmer Inc. shall not in any case be liable for special, incidental or consequential damages of any kind.。
5 高分子分子量与尺寸
Mz > Mw > Mv > Mn
Molecular weight distribution
分子量分布
Number-average distribution width
M M n
2 n
2
n
Mw M M 1 n
2 n
Weight-average distribution width
a
c b
样品a：可纺性很差； 样品b：有所改善；
5 10 15 M×10-4
样品c：由于分子量15～20万的大分子所占的比例较大， 可纺性很好。
Average molecular weight 平均分子量
Molecular weight
Number Weight for each type of chain
1 a i
1/ a
Example:
ni
nM n
i i
10
10 20
10 10
Mi(×10-4) 30
Mn
i
10 30 10 20 10 10 104 20 104 10 10 10
10 302 10 202 10 102 Mw 104 23.3 104 ni M i 10 30 10 20 10 10
无内干涉lightscatteringsmallparticledilutesolution小粒子稀溶液的光散射根据光的电磁波理论和涨落理论若入射光是垂直偏振光可导出每单位体积溶液中溶质的散射光强散射点至检测器的距离入射光在真空中的波长溶剂的折光率溶液浓度溶液的折光率增量溶液渗透压对浓度的偏导散射角光学常数与溶液浓度散射角溶质分子量无关rayleigh因子光学常数与溶液浓度散射角溶质分子量无关rayleigh因子smallparticles光散射法测定的是lightscatteringlargeparticledilutesolution大粒子稀溶液的光散射有内干涉时散射因子均方旋转半径无内干涉时测定不同浓度稀溶液在不同散射角的rayleigh因子将实验点外推至0c0即可求得m对高斯链无规线团illustrationlightscatteringcalculationzimmplot的测定
PAM242x 3A、4.5A、5.5A PWM 步进增压 DC-DC 转换器 商品说明书
3A, 4.5A, 5.5A PWM STEP-UP DC-DC CONVERTERDescriptionThe PAM242x devices are high-performance, fixed frequency,current-mode PWM step-up DC/DC converters that incorporate internal power MOSFETs. The PAM242x includes an integrated power MOSFET that supports peak currents of up to 3A/4.5A/5.5A.The PAM242x utilizes simple external loop compensation allowingoptimization between component size, cost and AC performance across a wide range of applications. Additional functions include an externally programmable soft-start function for easy inrush current control, internal over-voltage protection (OVP), cycle-by-cycle current limit protection, under voltage lock-out and thermal shutdown.The PAM242x is available in the small SOP-8(EP) package.Features∙ Greater than 90% Efficiency ∙ Adjustable Output Voltage Up to 24V ∙ Internal 24V Power MOSFET ∙ Peak Current 3A,4.5A,5.5A∙ 520kHz Frequency ∙Built-in Over-Voltage Protection (OVP)∙ Open Protection∙ Programmable Soft-Start Function ∙ Thermal Shutdowns ∙ Under-Voltage-Lockout ∙ Over-Current Protection ∙ SOP-8(EP) PackagePin AssignmentsApplications∙ TFT LCD Monitors∙ Battery-Powered Equipment ∙ Set-Top Boxes ∙DSL and Cable Modems and RoutersTypical Applications CircuitPin DescriptionsPin Number SOP-8(EP) Pin NameFunction1 PGNDPower Ground 2 INSupply Input 3 EN Enable Control. Connect to a logic high level to enable the IC. Connect to a logic lowlevel to disable the IC. When unused, connect EN pin to IN (do not leave pin floating).4 COMPError Amplifier Compensation Node 5 AGNDAnalog Ground 6 FBFeedback Input.Connect this pin a resistor divider from the output to set the output voltage. FB is regulated to 1.262V.7 SSSoft Start Control Input. Connect a capacitor from this pin to Ground to set soft-start timing duration. SS is discharged to ground in shutdown. SS may be left unconnected if soft start is not desired.8 SW Switch Output. Connect this pin to the inductor and the schottky diode. To minimizeEMI, minimize the PCB trace path between this pin and the input bypass capacitor.— Exposed PAD Connected to GroundFunctional Block DiagramAbsolute Maximum Ratings (@T A = +25°C, unless otherwise specified.)These are stress ratings only and functional operation is not implied. Exposure to absolute maximum ratings for prolonged time periods may affect device reliability. All voltages are with respect to ground.UnitParameter RatingSW to Ground -0.3 to +28 VVIN, EN, FB, SS, COMP to Ground -0.3 to +6.5 VContinuous SW Current Internally Limited VOperating Temperature Range -40 to +150 °CStorage Temperature Range -55 to +150 °CLead Temperature (Soldering, 10 sec) 300 °CRecommended Operating Conditions(@T A = +25°C, unless otherwise specified.)Unit Parameter RatingJunction Temperature Range -40 to +125°CAmbient Temperature Range -40 to +85Thermal InformationParameter Symbol Package Max UnitThermal Resistance (Junction to Case) θJC SOP-8(EP) 75°C/WThermal Resistance (Junction to Ambient) θJA SOP-8(EP) 180Electrical Characteristics (@T A = +25°C, V IN = V EN = 5V, unless otherwise specified.)Parameter TestConditionsMinTypMaxUnits Input Voltage 2.7 5.5 VUnder Voltage Lockout Threshold V IN Rising 2.5 VUnder Voltage Lockout Hysteresis 200 mVQuiscent Supply V FB = 1.4V, Not Switching 0.25 0.35mA V FB = 1.0V, Switching 3 5Supply Current in Shutdown EN = Ground 0.1 1.0 µASwitching Frequency 520 kHz Maximum Duty Cycle 85 %FB Feedback Voltage 1.237 1.262 1.287 VFB Input Current 0 80 nAFB Voltage Line Regulation V FB from 2.7V to 5.5V 0.05 0.15 %/VSwitch Current Limit PAM2421V IN = 3.2VDuty Cycle = 70%3A PAM2422 4.5 PAM2421 5.5Switching On Resisitance PAM2421 130mΩPAM2422 100PAM2423 70Switch Leakage Current V SW = 10V, EN = Ground 15µA Soft Start Pin Bias Current V SS = 1.2V 2.0 4.5 7.0 µA Logic High Threshold EN Pin 1.4 VLogic Low Threshold EN Pin 0.4 VEN Pull Down Resistor 1 mΩThermal Shutdown Temperature 160 °CThermalShutdownHystersis 40 °CTypical Operating Characteristics (@T A = +25°C, V IN = V EN = 5V, V FREQ = 0V, unless otherwise specified.)Typical Performance Characteristics (cont.) (@T A = +25°C, V IN = V EN = 5V, V FREQ = 0V, unless otherwise specified.)Application InformationThe PAM242x are highly efficient step-up DC/DC converters that employ a current mode, fixed frequency pulse-width modulation (PWM) architecture with excellent line and load regulation.The PAM242x operate at constant switching frequency under medium to high load current conditions. At light loads, these devices operate in a pulse-skipping mode in order to improve light-load efficiency.Soft-StartThe PAM242x both offer a programmable soft-start function which minimizes inrush current during startup. The soft-start period is programmed by connecting a 10nF capacitor between SS and Ground. Operation of the soft-start function is as follows: when the IC is disabled, SS is actively discharged to Ground. Upon enabling the IC, CSS is charged with a 4.5µA current so that the voltage at SS increases in a controlled manner. The peak inductor current is limited by the voltage at SS, so that the input current is limited until the soft-start period expires, and the regulator can achieve its full output current rating.Setting the Output VoltageThe both feature external adjustable output voltages of up to 24V. To program the output voltage, simply connect a resistive voltage divider between the output, FB, and GND, with resistors set according to the following equation:⎥⎥⎦⎤⎢⎢⎣⎡-⎪⎪⎭⎫ ⎝⎛=1V V x 2R 1R FB OUT Where V FB is 1.262V.Rectifier SelectionFor optimal performance, the rectifier should be a Schottky rectifier that is rated to handle both the output voltage as well as the peak switch current.Open Voltage ProtectionThe features internal automatic over-voltage protection, when feedback voltage is higher than 115%.Open ProtectionOnce the outputs achieve regulation, if the voltage at FB falls below 0.2V the controller will automatically disable, preventing the controller from running open-loop and potentially damaging the IC and load.ShutdownDrive EN low to disable the IC and reduce the supply current to just 0.1µA. As with all nonsynchronous step-up DC/DC converters, the external Schottky diode provides a DC path from the input to the output in shutdown. As a result, the output drops to one diode voltage drop below the input in shutdown.The PAM242x both feature integrated thermal overload protection. Both devices are automatically disabled when their junction temperatures exceed +160°C, and automatically re-enable when the die temperature decreases by 40°C.Ordering InformationPart Number Peak Current Package Type Standard Package PAM2421AECADJR 3A SOP-8(EP) 2500 Units/Tape & Reel PAM2422AECADJR 4.5A SOP-8(EP) 2500 Units/Tape & Reel PAM2423AECADJR 5.5A SOP-8(EP) 2500 Units/Tape & ReelMarking InformationPackage Outline Dimensions (cont.) (All dimensions in mm.) SOP-8(EP)IMPORTANT NOTICEDIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or trademark rights, nor the rights of others. Any Customer or user of this document or products described herein in such applications shall assume all risks of such use and will agree to hold Diodes Incorporated and all the companies whose products are represented on Diodes Incorporated website, harmless against all damages.Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel. Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings noted herein may also be covered by one or more United States, international or foreign trademarks.LIFE SUPPORTDiodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:A. Life support devices or systems are devices or systems which:1. are intended to implant into the body, or2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in thelabeling can be reasonably expected to result in significant injury to the user.B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause thefailure of the life support device or to affect its safety or effectiveness.Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.Copyright © 2012, Diodes Incorporated。
BX53M中文使用说明书
5 轻松找到大致焦点的方法----------------------------------------------------------------------------------25 3-9 调节亮度-------------------------------------------------------------------------------------------------------------26
安全注意事项----------------------------------------------------------------------------------------------------------------------2
1 部件名称--------------------------------------------------------------------------------------------------------------------------8
2 可组合使用的部件列表--------------------------------------------------------------------------------------------------------9
3 显微镜的基本操作（明场观察）---------------------------------------------------------------------------------------------14 3-1 反射光明场观察步骤-----------------------------------------------------------------------------------------------14 3-2 打开电源开关--------------------------------------------------------------------------------------------------------16 3-3 选择照明--------------------------------------------------------------------------------------------------------------16 1 切换反射光照明与透射光照明----------------------------------------------------------------------------16 3-4 选择观察方法--------------------------------------------------------------------------------------------------------17 1 使用 BX3M-RLAS-S 配置时-------------------------------------------------------------------------------17 2 使用 BX3M-KMA-S 配置时-------------------------------------------------------------------------------17 3 使用 BX3M-RLA-S 配置时--------------------------------------------------------------------------------17 4 使用 BX3M-URAS-S 配置时------------------------------------------------------------------------------18 3-5 切换目镜光路与相机光路----------------------------------------------------------------------------------------19 3-6 在载物台上放置样品-----------------------------------------------------------------------------------------------19 1 放置样品-------------------------------------------------------------------------------------------------------19 2 调节载物台高度----------------------------------------------------------------------------------------------20 3 使用 Y-轴锁----------------------------------------------------------------------------------------------------21 4 调节 X-轴旋钮与 Y-轴旋钮的张力------------------------------------------------------------------------21 3-7 选择物镜--------------------------------------------------------------------------------------------------------------23 3-8 调焦--------------------------------------------------------------------------------------------------------------------24 1 垂直移动载物台----------------------------------------------------------------------------------------------24 2 更换微调焦旋钮----------------------------------------------------------------------------------------------24 3 调节粗调焦旋钮的张力-------------------------------------------------------------------------------------24 4 设置使用粗调焦旋钮的移动范围-------------------------------------------------------------------------25
5833中文资料
5833中⽂资料Designed to reduce logic supply current, chip size, and system cost, the UCN5833A/EP integrated circuits offer high-speed operation for thermal printers. These devices can also be used to drive multi-plexed LED displays or incandescent lamps within their 125 mA peak output current rating. The combination of bipolar and MOS technolo-gies gives BiMOS II smart power ICs an interface flexibility beyond the reach of standard buffers and power driver circuits.These 32-bit drivers have bipolar open-collector npn Darlington outputs, a CMOS data latch for each of the drivers, a 32-bit CMOS shift register, and CMOS control circuitry. The high-speed CMOS shift registers and latches allow operation with most microprocessor-based systems at data input rates above 3.3 MHz. Use of these drivers with TTL may require input pull-up resistors to ensure an input logic high.The UCN5833A is supplied in a 40-pin dual in-line plastic package with 0.600" (15.24 mm) row spacing. At an ambient temperature of +75°C, all outputs of the DlP-packaged device will sustain 50 mA continuously. For high-density applications, the UCN5833EP is available. This 44-lead plastic chip carrier (quad pack) is intended for surface-mounting on solder lands with 0.050" (1.27 mm) centers.CMOS serial data outputs permit cascading for applications requiring additional drive lines.FEATURESI To 3.3 MHz Data Input Rate I 30 V Minimum Output Breakdown I Darlington Current-Sink Outputs I Low-Power CMOS Logic and LatchesBiMOS II 32-BIT SERIAL-INPUT,LATCHED DRIVERAlways order by complete part number:Part Number Package UCN5833A 40-Pin DIP UCN5833EP 44-Lead PLCCData Sheet 26185.16A*58335833BiMOS II 32-BIT SERIAL-INPUT,LATCHED DRIVER115 Northeast Cutoff, Box 15036Worcester, Massachusetts 01615-0036 (508) 853-5000SERIAL DATA IN POWER STROBE OUT OUT OUT OUT OUT OUT 123456OUT7OUT 8OUT 9OUTOUT OUTOUT OUTLOGIC SUPPLY OUT OUT Dwg. No. A-13,051TYPICAL OUTPUT DRIVERSUBOUT115 Northeast Cutoff, Box 15036Worcester, Massachusetts 01615-0036 (508) 853-5000Copyright ? 1986, 1995, Allegro MicroSystems, Inc.5833BiMOS II 32-BIT SERIAL-INPUT,LATCHED DRIVERTRUTH TABLEL = Low Logic Level H = High Logic Level X = Irrelevant P = Present State R = Previous StateELECTRICAL CHARACTERISTICS at T A = +25°C, V DD = 5 V (unless otherwise noted).Limits CharacteristicSymbol Test Conditions Min.Max.Units Output Leakage Current I CEX V OUT = 30 V, T A = 70°C —10µA Collector-Emitter V CE(SAT)l OUT = 50 mA — 1.2V l OUT = 100 mA— 1.7V Input VoltageV IN(1) 3.5 5.3V V IN(0)-0.3+0.8V Input Currentl IN(1)V IN = 5.0 V — 1.0µA l IN(0)V IN = 0 V —-1.0µA Serial Output VoltageV OUT(1)I OUT = -200 µA 4.5—V V OUT(0)I OUT = 200 µA—0.3V Supply Currentl DD One output ON, l OUT = 100 mA — 1.0mA All outputs OFF—50µA Output Rise Time t r l OUT = 100 mA, 10% to 90%—500ns Output Fall Timet fl OUT = 100 mA, 90% to 10%—500nsNOTE: Positive (negative) current is defined as going into (coming out of) the specified device pin.Saturation Voltage5833BiMOS II 32-BIT SERIAL-INPUT,LATCHED DRIVER115 Northeast Cutoff, Box 15036Worcester, Massachusetts 01615-0036 (508) 853-5000TIMING CONDITIONS(V DD = 5.0 V, Logic Levels are V DD and Ground)A.Minimum Data Active Time Before Clock Pulse(Data Set-Up Time)..........................................................................75 ns B.Minimum Data Active Time After Clock Pulse(Data Hold Time).............................................................................75 ns C.Minimum Data Pulse Width ................................................................150 ns D.Minimum Clock Pulse Width...............................................................150 nsE.Minimum Time Between Clock Activation and Strobe.......................300 nsF.Minimum Strobe Pulse Width .............................................................100 nsG.Typical Time Between Strobe Activation andOutput Transition ...........................................................................500 nsDwg. No. A-12,276ASerial Data present at the input is transferred to the shift register on the logic “0” to logic “1” transition of the CLOCK input pulse. On succeeding CLOCK pulses, the registers shift data information towards the SERIAL DATA OUTPUT. The SERIAL DATA must appear at the input prior to the rising edge of the CLOCK input waveform.Information present at any register is transferred to its respective latch when the STROBE is high (serial-to-parallel conversion). The latches will continue to accept new data as long as the STROBE is held high. Applications where the latches are bypassed (STROBE tied high) will require that the OUTPUT ENABLE input be low during serial data entry.When the OUTPUT ENABLE input is low, all of the output buffers are disabled (OFF) without affecting the information stored in the latches or shift register. With the OUTPUT ENABLE input high, the outputs are controlled by the state of the latches.CLOCK DATA INSTROBE NOUTPUT ENABLEOUT5833BiMOS II 32-BIT SERIAL-INPUT,LATCHED DRIVERNOTES:1.Exact body and lead configuration at vendor’s option within limits shown.2.Lead spacing tolerance is non-cumulative.3.Lead thickness is measured at seating plane or below.UCN5833ADimensions in Inches (controlling dimensions)Dimensions in Millimeters (for reference only)123Dwg. MA-003-40 mm20421123Dwg. MA-003-40 in2045833BiMOS II 32-BIT SERIAL-INPUT,LATCHED DRIVER115 Northeast Cutoff, Box 15036Worcester, Massachusetts 01615-0036 (508) 853-5000UCN5833EPDimensions in Inches (controlling dimensions)Dimensions in Millimeters (for reference only)Dwg. MA-005-44A mm0.53340Dwg. MA-005-44A in0.021740NOTES:1.Exact body and lead configuration at vendor’s option within limits shown.2.Lead spacing tolerance is non-cumulative.5833BiMOS II 32-BITSERIAL-INPUT,LATCHED DRIVERThe products described here are manufactured under one or more U.S. patents or U.S. patents pending.Allegro MicroSystems, Inc. reserves the right to make, from time to time, such departures from the detail specifications as may be required to permit improvements in the performance, reliability, or manufacturability of its products. Before placing an order, the user is cautioned to verify that the information being relied upon is current.Allegro products are not authorized for use as critical components in life-support devices or systems without express written approval.The information included herein is believed to be accurate and reliable. However, Allegro MicroSystems, Inc. assumes no responsi-bility for its use; nor for any infringement of patents or other rights of third parties which may result from its use. 5833BiMOS II 32-BIT SERIAL-INPUT,LATCHED DRIVER115 Northeast Cutoff, Box 15036Worcester, Massachusetts 01615-0036 (508) 853-5000POWERINTERFACE DRIVERSFunctionOutput Ratings*Part Number ?SERIAL-INPUT LATCHED DRIVERS8-Bit (saturated drivers)-120 mA 50 V?58958-Bit 350 mA 50 V 58218-Bit 350 mA 80 V 58228-Bit 350 mA 50 V?58418-Bit 350 mA 80 V?58428-Bit (constant-current LED driver)75 mA 17 V 62758-Bit (DMOS drivers)250 mA 50 V 65958-Bit (DMOS drivers)350 mA 50 V?6A5958-Bit (DMOS drivers)100 mA 50 V 6B59510-Bit (active pull-downs)-25 mA 60 V 5810-F and 6809/1012-Bit (active pull-downs)-25 mA 60 V 5811 and 681116-Bit (constant-current LED driver)75 mA 17 V 627620-Bit (active pull-downs)-25 mA 60 V 5812-F and 681232-Bit (active pull-downs)-25 mA 60 V 5818-F and 681832-Bit100 mA 30 V 583332-Bit (saturated drivers)100 mA 40 V 5832PARALLEL-INPUT LATCHED DRIVERS4-Bit350 mA 50 V?58008-Bit -25 mA 60 V 58158-Bit350 mA 50 V?58018-Bit (DMOS drivers)100 mA 50 V 6B2738-Bit (DMOS drivers)250 mA 50 V 6273SPECIAL-PURPOSE DEVICESUnipolar Stepper Motor Translator/Driver 1.25 A 50 V?5804Addressable 8-Bit Decoder/DMOS Driver 250 mA 50 V6259Addressable 8-Bit Decoder/DMOS Driver 350 mA 50 V?6A259Addressable 8-Bit Decoder/DMOS Driver 100 mA 50 V 6B259Addressable 28-Line Decoder/Driver 450 mA30 V6817*Current is maximum specified test condition, voltage is maximum rating. See specification for sustaining voltagelimits.Negative current is defined as coming out of (sourcing) the output.Complete part number includes additional characters to indicate operating temperature range and package style. Internal transient-suppression diodes included for inductive-load protection.。
计算机(微机)维修工基础知识理论模拟2
[模拟] 计算机（微机）维修工基础知识理论模拟2单项选择题第1题：Microsoft Word是______。
A.表格制作软件B.文字处理软件C.幻灯片制作软件D.以上都不对参考答案：B第2题：Excel电子表格软件制作出的电子表格默认的文件格式为______。
A..docB..pptC..xlsD..swi参考答案：C第3题：Word文字处理软件制作出的文档默认的文件格式为______。
A..docB..pptC..xlsD..swi参考答案：A第4题：下列选项中不属于图形图像处理软件的是______。
A.PhotoshopB.AutoCADC.FireworksD.Excel参考答案：D第5题：Windows系统中附件里的画图软件画出的图保存时默认的保存格式是______。
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6066-82-6_MedBio_N-Hydroxysuccinimide分子量
95-98 °C(lit.)
闪点
112.5±22.6 °C
2、同类产品列表：
品牌
货号
中文名称
英文名称
CAS
包装
纯度
MedBio
MED11052
芴甲氧羰基-L-天冬氨酸-1-叔丁酯
Fmoc-Asp-OtBu
129460-09-9
25g
≥98%
品牌
货号
中文名称
英文名称
CAS
包装
纯度
MedBio
MED11112
Fmoc-Ser(HPO3Bzl)-OH
158171-14-3
10g
≥98%
品牌
货号
中文名称
英文名称
CAS
包装
纯度
MedBio
MED11128
Fmoc-丝氨酸磷酸苄酯
Fmoc-Ser(HPO3Bzl)-OH
158171-14-3
50g
≥98%
品牌
货号
中文名称
英文名称
CAS
包装
纯度
MedBio
MED11097
MED11058
D-2,4-二氨基丁酸二盐酸盐
H-D-Dab-OH.2HCl
127531-11-7
1g
≥98%
6066-82-6_MedBio_N-Hydroxysuccinimide
1、产品物理参数：
常用名
N-羟基琥珀酰亚胺
英文名
N-Hydroxysuccinimide
CAS号
6066-82-6
分子量
115.087
密度
1.6±0.1 g/cm3
沸点
262.4±23.0 °C at 760 mmHg
EEA-PAM-523-D-32中文资料
EEA-PAM-523-D-32中⽂资料F LED and symbol not on EEA-PAM-513/523/525 amplifiers.B Solenoid current for EEA-PAM-523/525-D models.J ?2,0 mm(0.0787I dia.) sockets.z In the case of EEA-PAM-523/525-D models one of these relationships may not apply if two single solenoid valves are connected.[14]Monitor points [4] Overload, red[15] Mode switch– TEST VALVE setting – AUTO function setting – TEST LOOP setting [16] T est potentiometer[17] PID-controller enabled, yellow [19] Feedback = command signal, green [21] Feed-forward signal scaling[23] I-gain [18] Integrator enabled, yellow[20] Sensor failure, red [22] P-gain [24] D-gainPotentiometersLEDsPotentiometersLEDPotentiometersLEDs[25] MP3: Command signal [27] MP6: Integrator output [26] MP5: PID-controller output Monitor points J[28] MP4: Feedback signalJanuary 1996GB-2474EEA-PAM-5**-D-32 Series General DescriptionThe EEA-PAM-5**-D-32 Eurocards are power amplifiers with integrated PID modules. Each of these cards replaces two conventional electronic cards.Features and BenefitsF Includes all features of “A” amplifiers (except gain)F User configurable PID feed-forward,closed-loop operationF Command input rampsF Analog feedback sensor interface F Automatic switch-over p/Q function F Built-in test featureF The design reduces the amount ofexternal wiring, saves space in the rack enclosure and requires only one 24V supplyF The general purpose, integrated module can be configured using DIL switches (D1-D9) and potentiometers for the following applications:–Closed-loop pressure control using either proportional pressure valves or servo-performance proportional valves–Closed-loop velocity control –Closed-loop position control–p/Q control with internal or external switch-over from Q to pF The DIL- switch and potentiometer settings can easily be reconfigured on different cardsVickers ?AccessoriesPower Amplifiers with PID ModulesModel CodesAmplifier model For valvesEEA-PAM-513-D-32 EEA-PAM-523-D-32 EEA-PAM-525-D-32 EEA-PAM-533-D-32 EEA-PAM-535-D-32 EEA-PAM-541-D-32 EEA-PAM-553-D-32 EEA-PAM-561-D-32 EEA-PAM-568-D-32 EEA-PAM-571-D-32 EEA-PAM-581-D-32KCG-3, KCG-6/8KX(C)G-6/8K*G4V-3, KDG5V-5/7/8K*G4V-5KF*G4V-3KF*G4V-5KHDG5V-5/7/8 with zerolapped mainspool KSDG4V-3KFDG5V-5/7KFDG5V-8CVU-**-EFP1KHDG5V-5/7/8}With type “H”coils onlyOperating DataJ The demand signal should have the same voltage range as the sensor feedback, Continued on next pagei.e. 0 to 10V, or "10V.Continued on next page3Warning: Electromagnetic Compatibility (EMC)It is necessary to ensure that the valve is wired up in accordance with the connection arrangements shown in this leaflet. For effective protection, the user ’s electrical cabinet, the valve subplate or manifold and the cable screens should be connected to efficient earth (ground) points. The metal 7-pin connector part no. 934939 should be used for the integral amplifier.In all cases, both valve and cable should be kept as far away as possible from any source of electromagnetic radiation such as cables carrying heavy current, relays and certain kinds of portable radio transmitters, etc. Difficult environments could mean that extra screening may benecessary to avoid the interference.4J Located on PID module.Y All amplifiers except EEA-PAM-523/525 models, in which solenoid current is monitored.Circuit and Connections5Solenoid and LVDT Connections for Proportional Valves6Amplifier typeSolenoid with LVDT and/or for Solenoidwithout LVDT,or on pilot Pilot-stage LVDT,(black plug):Main-stage LVDT,(gray plug):and/or for flow P to B or on pilot valve Pin 1Pin 2Pin 3Pin 4Pin 1Pin 2Pin 3Pin 4EEA-PAM-513-D-32EEA-PAM-523-D-32EEA-PAM-525-D-32EEA-PAM-533-D-32EEA-PAM-535-D-32EEA-PAM-541-D-32EEA-PAM-553-D-32EEA-PAM-561-D-32EEA-PAM-568-D-32EEA-PAM-571-D-32EEA-PAM-581-D-32b26/b28b26/b28b26/b28b26/b28b26/b28–––––––z26/z28z26/z28z26/z28z26/z28z26/z28z26/z28z26/z28z26/z28z26/z28z26/z28–––––z14––––z14–––––z22––––z22–––––z16––––z16Not connected Not connected Not connected Not connected Not connected Not connected Not connected Not connected Not connected Not connected Not connected–––b14b14b14b14b14b14b14b14–––z22z22z22z22z22z22z22z22–––b16b16b16b16b16b16b16b16Not connected Not connected Not connected Not connected Not connected Not connected Not connected Not connected Not connected Not connected Not connected3rd angle projectionPlug-in Unit of 3U height, to IEC 297Installation Dimensions in mm (inches)Application NotesFactory settingON OFFLocation of User Features on PID ModuleI-gainFeed-forward gain7DIL SwitchesThe controller is configured for theapplication using DIL switches, located on the board.The DIL switch operates as follows:Switch ONOFFD1:For sensors with 4 to 20 mA output For sensors with "10V or 20 mA outputs D2:P-gain 2 to 50P-gain 0,1 to 2D6:One-sided limitation of the integrator output. (Only useful for proportional pressure and proportional throttle valves.)No limitations of integrator outputD7:Inverts the controller output signal Non-inverted signal D8:For sensors with 4 to 20 mA output For sensors with "10V or 20 mA outputs D9:Ramp signal not inverted Ramp signal inverted D10:Not used–For p/Q control with automaticswitch-over, connect d16 to z2 (+10V).The flow command signal (Q) is applied to the feed-forward input, d8, and the desired pressure setpoint voltage applied to a command signal input (b6/8/10 or z6/8/10). The pressure feedback sensor is connected to the sensor input d2, or d6as required.The pressure control loop will override the flow command to limit the pressure to the level determined by the pressure setpoint voltage. Adjust P , I and D gains for best performance.The switches D3, D4 and D5 belong together. They limit the I output volts between 100% (10V) and 5% (0,5V) as follows:D3D4D5l-limit ON ON ON ON OFF OFF OFF OFFON ON OFF OFF ON ON OFF OFFON OFF ON OFF ON OFF ON OFF100%50%35%25%5,9%5,8%5,3%5,0%Reconfiguration of Controller ParametersOnce the controller parameters have been optimized and set, they can be measured by means of an ohmmeter.This allows easy reconfiguration of the controller on different cards for use as spare parts or on standard machine series.Four test points are located on thePID-module for this purpose, see diagram for locations. The resistance between the appropriate test point and ground (at thefront panel monitor point) determines the controller parameters:P = P-gain I = I-gain D =D-gainV =Feed-forward gainOperation of the Integrated Test Mode The basic operation of the hydraulic actuator can be tested by using the 3-position mode switch mounted on the front panel. To select different modes the toggle switch must be lifted slightly before turning it to a new position.Caution:Before setting the mode switch to either “Test valve” or “Test loop” make sure the test potentiometer is set to “0”. Otherwise sudden movements of the actuator may occur.The mode switch has three positions:AUTOThe controller operates in closed-loop mode, using the external command signal. The test potentiometer is disconnected. TEST VALVEAn open-loop command signal for the valve comes directly from thepotentiometer. The external input signal is disconnected. The hydraulic part of the system may be tested in this configuration. TEST LOOPThe closed-loop command signal for the PID-controller comes directly from the potentiometer. The external signal input is disconnected. This configuration allows for verification of the valvepolarity and the control parameters.T est potentiometer on front panelsignalPrinted in U.S.A.E Eaton Hydraulics, Incorporated, 2000 All Rights Reserved。
3-丙烯酰胺基苯硼酸相对分子质量
3-丙烯酰胺基苯硼酸相对分子质量1. 介绍3-丙烯酰胺基苯硼酸是一种有机化合物，其化学式为C9H8BNO2。
它是一种重要的芳香化合物，具有多种应用。
由于其特殊的化学结构，有人可能会产生疑问：3-丙烯酰胺基苯硼酸的相对分子质量是多少？本文将对此问题进行详细解析。
2. 相对分子质量的定义在化学中，相对分子质量是指一个分子中所有原子的相对原子质量之和。
这个概念对于化学研究和实验中的实际操作非常重要。
相对分子质量的计算方法是根据分子式中原子的个数以及它们的相对原子质量来求得。
3. 3-丙烯酰胺基苯硼酸的结构3-丙烯酰胺基苯硼酸是一种含有苯环、氮原子、硼原子和羧基的化合物。
其化学结构中包含了9个碳原子、8个氢原子、1个硼原子、1个氮原子和2个氧原子。
在化学式C9H8BNO2中，每个元素的相对原子质量分别为：碳（C）的相对原子质量为12，氢（H）的相对原子质量为1，硼（B）的相对原子质量为10.81，氮（N）的相对原子质量为14，氧（O）的相对原子质量为16。
根据这些数据，我们可以计算出3-丙烯酰胺基苯硼酸的相对分子质量。
4. 相对分子质量的计算根据3-丙烯酰胺基苯硼酸的化学式C9H8BNO2和各元素的相对原子质量，可以进行相对分子质量的计算。
具体计算方法如下：（9*12）+（8*1）+10.81+14+（2*16）=108+8+10.81+14+32=172.81根据计算结果可知，3-丙烯酰胺基苯硼酸的相对分子质量为172.81。
5. 结论基于对3-丙烯酰胺基苯硼酸结构和相对分子质量的详细分析，我们得出了这种化合物的相对分子质量为172.81。
这个数值对于化学研究和工程实践具有重要意义，能够帮助科学家们更好地理解和利用这种有机化合物。
希望本文的解析能够解决读者对于3-丙烯酰胺基苯硼酸相对分子质量的疑问，为大家的学习和研究提供帮助。
3-丙烯酰胺基苯硼酸的特性与应用1. 物理性质3-丙烯酰胺基苯硼酸是一种固体物质，具有白色至浅黄色的结晶外观。
三(3,5-二甲基-1-吡唑基)硼酸氢钾的核磁峰
【三(3,5-二甲基-1-吡唑基)硼酸氢钾的核磁峰】在化学领域中，核磁共振(NMR)技术是一种用于研究分子结构和化学环境的强大工具。
核磁共振谱图中的核磁峰信息能够为科研人员提供丰富的化学信息，而对于三(3,5-二甲基-1-吡唑基)硼酸氢钾这种含有硼、氢和钾元素的化合物，其核磁峰的解析对于对其结构和性质进行深入理解至关重要。
**1. 三(3,5-二甲基-1-吡唑基)硼酸氢钾简介**三(3,5-二甲基-1-吡唑基)硼酸氢钾是一种含有硼、氢和钾元素的有机金属化合物，其分子结构中包含了吡唑基和硼酸基团。
这种化合物在有机合成和催化领域具有重要的应用价值，因此对其结构和性质的研究至关重要。
在进行核磁共振谱分析时，我们需要关注三(3,5-二甲基-1-吡唑基)硼酸氢钾分子中各个原子核的核磁共振信号峰。
**2. 核磁峰的解析**在核磁共振谱图中，不同原子核会对应不同化学环境，从而产生不同的核磁峰。
通过对这些峰的解析，可以推断出分子结构和化学环境。
对于三(3,5-二甲基-1-吡唑基)硼酸氢钾分子而言，其核磁峰的解析应包括吡唑基、硼和氢等原子核的化学位移和耦合常数等信息。
通过这些信息，可以揭示出化合物的结构特征和化学性质。
**3. 核磁峰分析的重要性**三(3,5-二甲基-1-吡唑基)硼酸氢钾的核磁峰分析对于理解其分子结构和化学性质至关重要。
通过对峰的位置、强度和形状的分析，可以确定分子中不同原子核的化学环境和相互作用关系，为其应用和研究提供技术支持和依据。
我们对三(3,5-二甲基-1-吡唑基)硼酸氢钾的核磁峰进行全面的研究和分析是十分必要的。
**4. 我对核磁峰的个人观点和理解**作为一名化学研究者，我对核磁峰的研究非常重视。
核磁共振谱图的解析不仅可以揭示化合物的结构和化学环境，还可以为化学研究提供重要的实验数据。
对于三(3,5-二甲基-1-吡唑基)硼酸氢钾这样的有机金属化合物而言，通过核磁峰的分析，可以为其在有机合成和催化领域的应用提供支持。
三氟甲基磺酰亚胺锂_固态电池_概述及解释说明
三氟甲基磺酰亚胺锂固态电池概述及解释说明1. 引言1.1 概述三氟甲基磺酰亚胺锂（LiFSI）是一种具有重要应用前景的化合物，在固态电池领域引起了广泛关注。
作为一种离子液体，LiFSI不仅具有优异的物理化学特性，还在固态电解质材料中表现出出色的性能。
本文将探讨LiFSI的相关特性以及其在固态电池中的应用。
1.2 文章结构本文分为五个部分来进行详细介绍和讨论。
首先，在引言部分介绍了本文的概要和结构，以便读者能够更好地理解文章内容。
其次，在"2. 三氟甲基磺酰亚胺锂的特性和用途"部分，我们将深入探讨LiFSI的物理和化学特性，并介绍它在不同领域中的广泛应用。
接着，在"3. 固态电池技术概述"部分，我们将详细介绍固态电池的基本原理、发展历程以及当前状态。
然后，在"4. 三氟甲基磺酰亚胺锂在固态电池中的应用"部分，我们将探讨LiFSI在固态电解质材料中的应用情况，以及它对固态电池性能的影响，并展望基于LiFSI的新型固态电池的设计和发展趋势。
最后，在"5. 结论及展望"部分，我们将总结已有研究成果，并提出当前面临的挑战以及未来发展方向。
1.3 目的本文旨在深入了解三氟甲基磺酰亚胺锂这一化合物在固态电池领域中的应用情况。
通过对LiFSI的特性和用途进行探讨，我们希望能够更加全面地认识其优点、挑战以及未来的发展方向。
同时，通过本文的撰写，我们也旨在为科学界和工业界提供有价值的指导和借鉴，推动固态电池技术的不断创新与发展。
2. 三氟甲基磺酰亚胺锂的特性和用途2.1 物理和化学特性三氟甲基磺酰亚胺锂，也被称为LiFSI，是一种重要的固态电解质材料。
它具有以下物理和化学特性：- 化学式：LiFSI- 分子量：287.09 g/mol- 熔点：195 °C- 溶解度：可溶于常见极性溶剂如乙腈、丙腈和二甲基甲酰胺- 稳定性：在高温下稳定，能够提供足够的离子导电性2.2 应用领域由于其突出的离子传输性能和优异的热稳定性，三氟甲基磺酰亚胺锂在固态电池领域具有广泛的应用前景。
lc3b成分
lc3b成分LC3B（Microtubule-associated protein 1 light chain 3 beta）是一种微管相关蛋白，是在研究自噬过程中广泛使用的指标蛋白。
LC3B是自噬中最重要的标志蛋白之一，它在自噬过程的形成和调控中发挥着重要作用。
本文将从LC3B的结构、功能、调控以及在疾病中的作用等方面进行详细介绍。
一、LC3B的结构LC3B基因座位于人类基因组上的2q24-25区域，包含5个外显子和4个内含子。
LC3B的氨基酸序列为120个氨基酸，分子量为14kDa。
该基因编码的蛋白质为LC3B-I，是一个17kDa的单体，在自噬过程中，经过后转录翻译修饰后，形成LC3B-II，分子量为16kDa。
LC3B-II是自噬囊泡膜的主要成分。
LC3B蛋白具有一个N端的胺基酸序列和一个C端的截短序列。
N端的胺基酸序列中包含一个Atg7依赖的肝转氨酶结构域，该结构域与Atg7相互作用，使LC3B蛋白得以在自噬过程中共价地连接到磷脂酰乙醇胺（PE）上。
PE与LC3B的结合可增加LC3B蛋白在囊泡膜中的富集，使得自噬囊泡形成。
二、LC3B的功能LC3B的主要功能是参与自噬过程中的囊泡膜的扩张和闭合。
在自噬过程中，细胞质中的废弃物和受损的细胞器被包裹在自噬囊泡中形成自噬体，然后与溶酶体融合，废弃物被降解和回收。
LC3B-II通过与自噬囊泡膜上的PE结合，参与自噬囊泡的形成和闭合过程。
此外，LC3B还参与调节自噬相关的信号通路。
LC3B蛋白通过与细胞膜上的受体相互作用，调控自噬的启动和停止。
例如，通过与膜上受体FKBP8相互作用，LC3B可以抑制自噬的启动；而与GABARAP蛋白相互作用时，则可以促进自噬的启动。
三、LC3B的调控LC3B的表达和调控与自噬的启动和停止密切相关。
研究发现，LC3B的表达水平与细胞中自噬活性存在正相关关系。
当细胞中自噬活性增强时，LC3B的表达量增加；当自噬活性降低时，LC3B的表达量下降。
lc3b成分
LC3b成分1. 简介LC3b（Microtubule-associated protein 1 light chain 3 beta）是一种与微管相关的蛋白质，属于细胞自噬（autophagy）过程中的关键调节因子。
自噬是一种细胞通过降解细胞内部分或所有成分来维持生物体内稳态的过程。
LC3b作为自噬过程中的标志性蛋白，广泛应用于生物医学研究领域。
2. 结构和功能LC3b是一种小分子蛋白，由120个氨基酸组成。
其主要特点是具有一个C-末端疏水性区域和一个N-末端亲水性区域。
C-末端疏水性区域与微管结合，并参与自噬小体的形成和运输。
N-末端亲水性区域则用于与其他蛋白质相互作用，调节自噬过程。
LC3b在自噬过程中起到多个重要功能：2.1 自噬小体形成LC3b通过与ATG5、ATG12等关键蛋白结合，参与自噬小体的形成。
在自噬过程中，LC3b-I形式被磷酸化为LC3b-II形式，然后与膜结合，促进自噬小体的形成。
2.2 自噬小体运输LC3b作为微管相关蛋白，参与自噬小体的运输。
它通过与微管结合，在细胞内进行定向运动，将自噬小体从起始点运送到目的地，实现细胞内物质的降解和回收。
2.3 自噬调控除了参与自噬小体的形成和运输外，LC3b还通过与其他蛋白质相互作用来调控自噬过程。
例如，LC3b可以与Beclin-1相互作用，促进自噬途径的启动。
此外，LC3b还参与选择性自噬过程，并调节细胞凋亡、抗病毒免疫等多种生物学过程。
3. LC3b在疾病中的作用由于其重要的功能和广泛参与的生物过程，LC3b在多种疾病中发挥着重要作用。
3.1 肿瘤在肿瘤中，自噬途径常常被激活，并且与肿瘤的发生和发展密切相关。
LC3b作为自噬过程的标志性蛋白，其表达水平与肿瘤的预后、治疗反应等有关。
通过检测LC3b的表达水平，可以评估肿瘤细胞中自噬途径的活性，并为肿瘤治疗提供参考依据。
3.2 神经退行性疾病在神经退行性疾病（如阿尔茨海默病、帕金森氏病等）中，自噬途径的异常激活和功能障碍被认为是重要的发病机制之一。
ar级别氨基磺酸
ar级别氨基磺酸
AR级别氨基磺酸是一种重要的有机化学品，具有多种应用价值。
在本文中，将对AR级别氨基磺酸进行详细的介绍，包括它的定义、化学性质、制备方法、应用等方面。
一、定义
AR级别氨基磺酸是一种常见的生化试剂，化学名称为3-氨基-1-丝氨酸磺酸，CAS号为532-89-6，分子式为C4H10N2O4S，分子量为174.20。
该物质为白色结晶性粉末，易溶于水，微溶于醇类和乙醚。
二、化学性质
AR级别氨基磺酸为非常稳定的化学品，在一般条件下不会发生分解反应。
它的酸碱性十分中性，不与酸、碱反应。
该物质具有较好的亲水性，易溶于水，但不溶于非极性溶剂。
三、制备方法
AR级别氨基磺酸的制备方法主要有以下几种：
1. 取L-丝氨酸为原料，经过脱羧、硫化反应后得到氨基磺酸。
2. 用过氧化氢氧化乙硫醇得到硫酸化的乙硫醇；再将硫酸化的乙硫醇与L-丝氨酸反应生成氨基磺酸。
四、应用
AR级别氨基磺酸广泛应用于生物化学、临床医学、医药等领域中。
具体应用如下：
1. 构建肽基体外生长、修饰及破碎反应。
2. 用作高效向心性薄层层析介质。
3. 在医学领域中作为治疗过敏性疾病的药物。
4. 作为食品添加剂、化妆品等的原料。
综上所述，AR级别氨基磺酸是一种具有重要应用价值的有机化学品。
其制备方法简单，应用领域广泛，对生物学、医学、化学等领域都具有一定的贡献。
双硒葡聚糖水凝胶的合成及其药物释放行为
双硒葡聚糖水凝胶的合成及其药物释放行为程鹏辉;刘小云;庄启昕【摘要】首先,通过双硒化钠(N a2 S e2)与11-溴-1-十一醇的亲核取代反应合成了一种二羟基二硒化物;然后,通过该二硒化物与异佛尔酮二异氰酸酯(IPDI)反应合成了一种异氰酸根封端的双硒交联剂;最后,通过葡聚糖与该交联剂的反应合成了一种含双硒键的葡聚糖水凝胶.采用核磁共振氢谱(1 H-NMR)、傅里叶红外光谱(FT-IR)、凝胶渗透色谱(GPC)、拉曼光谱(Raman)、旋转流变仪(Rheology)、紫外-可见分光光度计(UV-Vis)等表征方法研究了产物的结构、溶胀性能、氧化响应行为、流变性能和体外药物释放行为.结果表明:含双硒键的葡聚糖水凝胶具有氧化响应能力;在没有氧化刺激条件下,该水凝胶24 h的累积药物释放量为45％左右,而在氧化刺激条件下(w(H2 O2)=0.2),只需14 h便可释放90％的负载药物.【期刊名称】《功能高分子学报》【年(卷),期】2019(032)001【总页数】7页(P103-109)【关键词】双硒键;葡聚糖;水凝胶;氧化响应;药物释放【作者】程鹏辉;刘小云;庄启昕【作者单位】华东理工大学材料科学与工程学院,特种功能高分子材料及相关技术教育部重点实验室,上海200237;华东理工大学材料科学与工程学院,特种功能高分子材料及相关技术教育部重点实验室,上海200237;华东理工大学材料科学与工程学院,特种功能高分子材料及相关技术教育部重点实验室,上海200237【正文语种】中文【中图分类】TB381水凝胶是一种具有三维网络结构并可在水中溶胀的聚合物[1]。
近几十年来，关于水凝胶的研究众多，其研究重点从早期简单的溶胀网络结构转变为现阶段能够对一种或多种环境刺激如pH[2-3]、热[4-6]、氧化还原[7-8]、电场[9]等产生响应的智能材料。
智能水凝胶在药物输送[2, 4, 10]、组织工程[11-12]、细胞培养[13]等领域有着广泛的应用前景。
可见光照射下ATRP法合成高分子量聚丙烯腈
可见光照射下ATRP法合成高分子量聚丙烯腈蒋佳玉;王聃轲;钮腾飞;刘学民【摘要】Polyacrylonitrile(PAN)with high conversion(95%)and high molecular weight(Mn,GPC/2.5=8.6×104g· mol -1,Mw/Mn=1.24)was synthesized by visible light induced atom transfer rad-ical polymerization, using α-bromophenylacetate as initiator.PAN-b-PBA block copolymer was ob-tained by the polymerization of macroinitiator PAN-Br with butyl acrylate,using Ir(ppy)3as catalyst. The structure were confirmed by 1H NMR and GPC.The dynamic behavior of Ir(ppy)3was investiga-ted.The result showed that the polymerization exihibited classic"living"characteristic.%可见光下,以α-溴苄基乙酸乙酯为引发剂,采用ATRP法合成了高分子量聚丙烯腈(PAN, Mn,GPC/2.5=8.6×104g· mol-1,Mw/Mn=1.24),转化率95%;以Ir(ppy)3为催化剂,PAN-Br为大分子引发剂,与丙烯酸丁酯(BA)聚合,合成了PAN-b-PBA嵌段共聚物,其结构经1H NMR和GPC 确证.研究了Ir(ppy)3催化聚合体系的动力学行为.结果表明:该体系的聚合行为具有典型的"活性"特征.【期刊名称】《合成化学》【年(卷),期】2018(026)002【总页数】4页(P119-122)【关键词】光聚合;ATRP法;聚丙烯腈;合成;嵌段共聚物【作者】蒋佳玉;王聃轲;钮腾飞;刘学民【作者单位】江南大学化学与材料工程学院,江苏无锡 214000;江南大学化学与材料工程学院,江苏无锡 214000;江南大学化学与材料工程学院,江苏无锡 214000;江南大学化学与材料工程学院,江苏无锡 214000【正文语种】中文【中图分类】O631.5碳纤维作为一种具有高比强度和高比模量的新型纤维材料，在航空航天、国防军事及医疗器械等领域均有广泛应用[1-3]。