2017年华科考博真题(自动化学院专业课最新考博真题)

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2017-2018年中国科学院自动化研究所考博试题 模式识别

2017-2018年中国科学院自动化研究所考博试题 模式识别
2. (12 分) 关于概率密度函数估计:(1)源自设一维特征空间中的窗函数为
(u)

1, 0,
| u | 1/ 2 otherwise
。现有
n
个样本
xi,
i=1,…,n,
采用宽度为 hn 的窗函数,请写出概率密度函数 p(x)的 Parzen 窗估计 pn(x);(6 分) (2) 给定一维空间中的三个样本点{1,0,2},请写出概率密度函数 p(x)的最近邻(1-NN)
7. (12 分) 设有 n 个 d 维空间的训练样本,这些样本一共来自于 c 个类别。假定要设计一 个多层前向神经网络,将该网络训练之后可用于对新样本进行分类。请描述你所设计的 网络结构,给出训练该网络的主要计算步骤;从网络结构和网络训练的角度指出哪些因 素会对分类性能造成影响。
8. (10 分) 请从监督学习(学习过程中利用样本的类别标签)和无监督学习(学习过程 中不利用样本的类别标签)的角度,对如下方法进行归类:Parzen 窗概率密度估计方法、 K-近邻分类器、感知器准则方法、主成分分析方法、决策树方法、支持向量机方法、C 均值聚类方法、ISODATA 方法、罗杰斯特回归方法、分级聚类方法、核主成分分析方 法、LLE 方法、Adaboost 方法、自组织映射方法、Isomap 方法、Fisher 判别分析方法、 谱聚类方法、Recurrent Neural Network 方法、受限玻尔滋曼机方法、卷积神经网络方法。
科目名称:模式识别
第2页 共2页
中国科学院自动化研究所
2018 年招收攻读博士学位研究生入学统一考试试卷 科目名称:模式识别
考生须知:
1. 本试卷满分为 100 分,全部考试时间总计 180 分钟。 2. 所有答案必须写在答题纸上,写在试题纸上或草稿纸上一律无效。

2017年中国科学院自动化研究所考博试题 神经解剖

2017年中国科学院自动化研究所考博试题 神经解剖

中国科学院自动化研究所
2017年招收攻读博士学位研究生入学统一考试试卷
科目名称:神经解剖学
考试须知:本试卷满分为100分,全部考试时间总计180分钟——————————————————————————————————
I. Explain terms:(10×2分= 20分)
1.脊髓节段, 2.(脊髓)中间外侧核, 3.新小脑, 4.锥体交叉,5.外侧豆纹动脉, 6. 内侧纵束, 7.脑池, 8半卵圆中心,9.后丘脑 1 0. 丘脑髓纹,
II. Answer questions:(5×10分= 50分)
1.第10胸脊髓节段右侧半损伤,可出现那些感觉和运动障碍?为什么?
2.脑干内有哪些副交感神经核?各核发出的节前纤维参与哪几对脑神经?
节后纤维如何走行与管理?
3. 颈内动脉(颅内段)的分段名称、行程及主要分支名称;
在MRA / CTA正、侧位图像上如何识别?
4.下丘脑的外形、主要神经核团的名称及其纤维联系。

5.解释一侧内囊出血后,临床所谓的“三偏综合征”。

Ⅲ. Completion of drawing:(30×1分= 30分)
1 - 6 、海马结构; 7 – 12、间脑(后面观);
13 – 18、脑(经海马头的冠状切面);
19 - 24 、延髓(经舌下神经核的横断面);
25 – 30、脑底的动脉。

2016-2017年沈阳自动化所博士入学考试试卷真题

2016-2017年沈阳自动化所博士入学考试试卷真题
试: 1) 建立各连杆坐标系; 2) 列出各连杆 D-H 参数; 3) 计算各连杆间的齐次变换矩阵; 4) 推导该机械手末端点的位姿方程。
科目名称:机器人学
第 1页 共 3页
四、(20 分)设有一个旋转关节的单自由度操作臂处于静止状态,0 15o ,要在 3s 之内平稳运动到达终止位置: f 75o ,并且在终止点的速度为零。试用三次多项 式插值求 (t) ,(t) ,(t) 。
二、(14 分)试写出齐次变换阵 BAH ,它表示坐标系{B}连续相对固定坐标系{A} 作以下变换: (1)绕 Z A 轴旋转 90 。 (2)绕 X A 轴旋转-90 。
(3)移动 3 7 9T 。
三、(20 分)如图所示的三自由度机械手(两个旋转关节加一个平移关节,简称 RPR 机械手),三个关节的运动参数分别为θ1,d2 和θ3,连杆长度分别为 L1,L2 和 L3。
三、(20 分)如图所示,均质杆 AB 和 OD,质量均为 m,长度均为 l,垂直的固接 成 T 字型,且 D 为 AB 杆的中点,置于铅垂平面内,该 T 字杆可绕光滑固定轴 O 转动。开始时系统静止,OD 杆铅垂。在一常值力偶 M =(20/π)∙mgl 作用下转动。 求 OD 杆至水平位置时,(1)OD 杆角速度和角加速度;(2)支座 O 处的反力。
P
A
C
B
M D
二、(20 分)图示机构中,杆 AB 上的销钉 E 可在构件 CD 的滑槽内滑动。当机构 运动到图示位置时,滑块 A 的速度为 40cm/s,加速度为 140cm/s2。试求构件 CD 在铅垂位置时的角加速度。
B D
200mm
E
A
vA
C
aA
75mm
75mm

华中科技大学历年的考博真题整理 1

华中科技大学历年的考博真题整理 1

同济医科大学2006年麻醉学(博士)一、名词解释1.2相阻滞2.V AS评分3.间歇指令通气(IMV)4.前负荷5.霍夫曼消除6.PCA7.CO2排除综合征8.MODS二、问答题1.全麻术后苏醒延迟的原因。

2.简述低流量吸入麻醉的优点和存在的问题。

3.简述肌松药的类型及肌松药作用的监测。

4.简述目前疼痛治疗的方法。

5.肺动脉高压的原因及处理6.急性肺损伤和ARDS的病因及其诊断标准。

2.同济医科大学组织胚胎学(博士)[Re: 0分会员] Copy to clipboardPosted by: 0分会员Posted on: 2008-01-22 17:38同济医科大学2004年组织胚胎学(博士)一、名解:1.神经干细胞2.凋亡3.胚泡4.抗原提呈细胞5.小强荧光细胞二、问答:1. 丘脑的结构、功能和功能的调控2. 大脑皮质的神经元种类、皮质分层和神经纤维联络3. 球旁复合体的结构和功能4. 胃肠内分泌细胞的种类、特点和功能5. 已知一种HAP1蛋白在下丘脑高水平表达,但不知道其功能。

请你进行课题设计以揭示HAP1的功能。

简述实课题研究目的、研究内容、实验方案。

并简要说明所用实验技术的基本原理。

注:名解是用英文出的。

3.同济医科大学神经解剖学(博士)[Re: 0分会员] Copy to clipboardPosted by: 0分会员Posted on: 2008-01-22 17:39同济医科大学2006年神经解剖学(博士)一、名词解释:1、皮质2、神经节3、纤维束4、internal capsule5、corpus striatum6、medial lemniscus7、?8、broca区9、锥体系10记不起来了,也很简单二、问答题:1.小脑的分叶及纤维联系2.尺神经损伤的表现及原因3.交感神经节前纤维及节后纤维的走向4.脑干一般内脏运动核的功能及纤维联系5.?6.?4.同济医科大学肿瘤学(博士)[Re: 0分会员] Copy to clipboardPosted by: 0分会员Posted on: 2008-01-22 17:40同济医科大学2006年肿瘤学(博士)一、名解(4*5)20分1 IGRT2 GCP3 VEGF4 TBI5 NCCN二、问答题80分1.简述肿瘤基因治疗的策略?152.简述霍杰金淋巴瘤的临床分期及治疗原则?153.WHO疼痛治疗原则?154.论述化疗药物机制和细胞周期的关系?155.鼻咽癌TNM分期,临床分期,治疗原则和技术?205.同济医科大学考博历年真题感染专业2005年试题[Re: 0分会员] Copy to clipboard Posted by: 0分会员Posted on: 2008-01-22 17:40同济医科大学考博历年真题感染专业2005年试题一、名词解释(每题5分)1.incudation period2.septicemia3.rabies4.nosocomial infection5.cholera二、问答题(每题20分)1.肝性脑病的发病机制及治疗原则2.HIV的治疗原则和临床表现3.丙型肝炎的基因分型及抗病毒治疗方案三、选答题(二选一)(15分)1.试述肝相关干细胞研究的现状及展望2.简述细菌对抗菌药产生耐药的发病机制6.同济医科大学细胞生物学(博士)[Re: 0分会员] Copy to clipboardPosted by: 0分会员Posted on: 2008-01-22 17:41同济医科大学2003年细胞生物学(博士)一、名词解释(共10小题,每题4分,共40分)1.nuclear skeleton2.kinetochore3.Signal Sequence4.stem cell5.molecular chaperon6.cyclin7.核孔复合体核篮模型8.膜泡运输9.微丝结合蛋白10.蛋白酶体二、综合题(共60分)1.试述溶酶体的形态结构、化学组成、形成的主要途径及功能。

华中科技大学考博英语-4.doc

华中科技大学考博英语-4.doc

华中科技大学考博英语-4(总分:99.99,做题时间:90分钟)一、Translation(总题数:6,分数:100.00)By far the most common snake in Britain is the adder. In Scotland, in fact, there are no other snakes at all. The adder is also the only British snake with a poisonous bite. It can be found almost anywhere, but prefers sunny hillsides and rough open country, including high ground. In Ireland there are no snakes at all.Most people regard snake bites as fatal misfortune, but not all bites are serious, and very few are fatal. 1 Sometimes attempts at emergency treatment turn out to be more dangerous than the bite itself, with amateurs heroically, but mistakenly, trying do-it-yourself surgery and other unnecessary measures.All snakes have small teeth, so it follows that all snakes can bite, but only the bite of the adder presents any danger. 2 British snakes are shy animals and are far more frightened of you than you could possibly be of them. The adder will attack only if it feels threatened, as can happen if you take it by surprise and step on it accidentally or if you try to catch it or pick it up which it dislikes intensely. If it hears you coming it will normally get out of the way as quickly as it can, but adders cannot move very rapidly and may attack before moving if you are very close.The effect of a bite varies considerably. It depends upon several things, one of which is the body-weight of the person bitten. The bigger the person, the less harmful the bite is likely to be, which is why children suffer far more seriously from snake bites than adults. A healthy person will also have better resistance against the poison. 3 Very few people actually die from snake bites in Britain, and though these bites can make some people very ill, there are probably just as many cases of bites having little or no effect, as there are of serious illness.(分数:15.00)______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Sociology is concerned with people and with the rules of behavior that structure the ways in which people interact. As one of the social sciences, sociology has much in common with psychology and anthropology.The subject matter of social science inquiry is patterned social regularities. 4 A search for these regularities shows that most human behavior, from big and momentous acts to small and insignificant ones, is patterned.All of the social sciences are interested in patterned regularities in human social behavior. The distinction among the social sciences is chiefly in the kinds of regularities of interest. Psychology occupies itself principally with patterns of learning, motivations and mental disorders. Because mental behavior also has a biological base, psychology is related to the natural science as well as the social. Anthropology has traditionally limited its inquiry to small, preliterate societies and has turned to focus on culture and cultured systems. The focus on such societies provides anthropologists with field laboratories in which they study many of the concerns of the other social sciences. 5 To the extent that anthropologists turn their attention to modern societies, there is little difference in the subject matter of anthropology and sociology; in many colleges and universities, they are in the same department. The chief differences continue to be in methodology and level of analysis.Whatever their particular area of concern, all social sciences rely on the scientific method of inquiry. 6 This means they rely on critical and systematic examination of the evidence before reaching any conclusions and that they approached each research question from a position of moralneutrality. This scientific approach is what distinguishes the social sciences from journalism and other fields that comment on the condition.(分数:15.00)______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Every year, according to the U.S. National Institute of Mental Health (NIMH), millions of men and women suffer from depressive illness. 7 Worse, thousands of depressives, including an alarming number of teenagers, take their own lives—often, it is believed, before their condition is identified.A NIMH survey has found that only about one third of depressed people seek treatment. Yet when treated, 80 to 90 percent can be helped with new drugs and therapy, and may never have another episode—if those around them spot their troubles early and treatment begins promptly. Clinical depression should not be confused with the blues. 8 Everyone has brief "down" periods, and sometimes depression strikes tor perfectly understandable reasons: the death of a loved one, the loss of a job or the breakup of a marriage. But most people gradually adjust to their losses. Clinical depression differs from the blues in duration and severity. For some it may be associated with disturbances in the brain"s neurochemistry (神经化学系统). Says Dr. Frederick K. Goodwin, director of the Center on Neuroscience, Behavior and Society at George Washington University Medical Center, "In depression-prone people, what starts as a normal response takes on a biochemical life of its own. The regulatory, systems keep running, and you get a kind of burnout."9 Untreated, the condition frequently recurs, and with each recurrence the chances of yet another episode increase. Half of those who have an untreated first episode will have a second, and after three episode, there is a 90 percent chance of a fourth. So early treatment is critical. Depression is a crippling illness. But with a little help from observant friends or family, and with proper medical treatment, most people recover and return to healthy, productive lives.(分数:15.00)______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Did life emerge spontaneously on earth, or did it come from outer space? 10 The scientific community is sharply split on the question, and the evidence from Mars (火星) not only heats up the debate but also adds a third possibility: life-forms may have arisen on Mars first and then hitched a ride on a meteorite (陨石) to Earth—or vice versa. As Stanford University chemist Richard Zare puts it, "Who is to say that we are not all Martians?"Sounds implausible? Consider the alternatives. Sir Fred Hoyle, the distinguished British astronomer, favors an even more radical theory. The idea is that billions of years ago, the solar system was peppered by biological "seeds", which took root wherever conditions were right. That would explain how life may have arisen at roughly the same time on Earth and on Mars. 11 But it also raises awkward questions about where those seeds came from and what, or who, sent them flying through space.There is something to this theory. 12 Even scientists who reject it acknowledge that some of life"s building blocks probably had extraterrestrial (外星的) origins. Indeed, they now believe that everything from organic chemicals to amino acids (氨基酸), the constituents of proteins, was carried in by the comets, asteroids (小行星) and meteorites.(分数:15.00)______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Americans are the first of the big spenders. 13 Among twenty major countries, the U. S. ranks third from last in individual willingness to save, putting aside a bare 4% of disposable income.A key reason is world-beating U. S. consumer debt, which has ballooned in 20 years from $100 billion to $900 billion. Things were not always thus. Thriftiness, not to say tightfistedness, used to be a Yankee (美国人的) virtue. As recently as 1984, Americans were saving 8% of their after-tax income. The image of Americans as spoiled children is fairly new, though now firmly established.14 Instead of putting something aside for a rainy day, Americans now start saving only when recession hits, while in other parts of the world like Asia, higher savings are associated with prosperity and growth.Savings also help maintain that happy state of affairs. Capital accumulation funds capital investment, so it comes as no surprise that as in savings, the U. S. lags in investment: 18.5% of GDP in 1994 against 24.8% for Germany, 28.9% for Japan and even more for Asia"s Young Tigers. Given the right encouragement, can Americans become born-savers again? If not, Joseph Gorman, CEO of TRW Inc., the $8 billion American auto-components manufacturer, warns, " 15Macro-economists would argue that we are condemned to run a big trade deficit because our country consumes far more than it saves, and other countries save far more than they consume. So goods are going to flow largely to the consumers, but the capital profits and the jobs will flow to the producers, who are the savers." In other words, Americans will be the grasshoppers (蚱蜢) in a world of ants.(分数:15.00)______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________16 We are all now aware that some new scientific or technological advances, though useful, may have unpleasant side effects. More and more, the tendency is to expert caution before committing the world to something that may not be reversible.The trouble is, it"s not always easy to tell what the side effects will be. In 1846, a man called Sobrero produced the first nitroglycerine (硝化甘油). When heated, a drop of it exploded. The Italian chemist realized in horror its possible application to warfare and stopped his research at once. It didn"t help, of course. 17 Others followed his research and other high explosives were indeed being used in warfare by the close of the 19th century.Did that make high explosives entirely bad? In 1867, Alfred Nobel learned how to mix nitroglycerine with other substances to produce a safer-to-handle mixture he called "dynamite". With dynamite, earth could be moved at a rate far beyond that of pick and shovel.We can"t abandon industrialization, because our food supply depends on it. If everyone decided to grow food without chemical fertilizers or insecticides or machinery, it would mean that only one quarter of the world population could be fed.Can we abandon some of our industrial technology and hold onto the rest? That would be very difficult, since it all hangs together.We can save, conserve, cut out waste, but what we have we must keep. 18 The only solution, as always in the history of mankind, is to solve problems by still further advances in technology.(分数:24.99)______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________。

历年湖北省华中科技大学英语考博真题

历年湖北省华中科技大学英语考博真题

以下是[⽆忧★考]为⼤家整理的《历年湖北省华中科技⼤学英语考博真题》的⽂章,供⼤家参考阅读! 华中科技⼤学 2010年招收博⼠研究⽣⼊学考试试题 考试科⽬:英语 适合专业:各专业 Part I Cloze (0.5x20=10%) Directions: In this part you are asked to choose the best word for each blank inthe passage. Write your answers on the answer sheet. Who won the World Cup 1994 football game? What happened at the .United Nations? How did the critics like the new play? 1 en event takes place, newspapers are on the street 2 the details. 3 anything happens in the world, reporters are on the spot to gather the news. Newspapers have one basic 4 , to get the news as quickly as possible from its source, from those who make it to those who want to 5 it. Radio, telegraph, television, and 6 inventions brought competition for newspapers. So did the development of magazines and other means of communication. 7 , this competitionmerely spurred the newspapers on. They quickly made use of the newer and faster means of communication to improve the 8 and thus the efficiency of their own operations. Today more newspapers are 9 and read than ever before. Competition also led newspapers to 10 out into many other fields. Besides keeping readers informed of the latest news, today's newspapers entertain and influence readers about politics and other important and serious 11 Newspapers influence readers' economic choices 12 advertising. Most newspapers depend on advertising for their very 13 Newspapers are sold at a price that 14 even a small fraction of the cost of production. The main 15 of income for most newspapers is commercial advertising. The 16 in selling advertising depends newspaper's value to advertisers. This 17 in terms of circulation. How many people read the newspaper? Circulation depends 18 on the work of the circulation department and on the services or entertainment 19 in a newspaper's pages. But for the most part, circulation depends on a newspaper's value to readers as a source of information 20 the community, city, county, state, nation and world……and even outer space. 1. A. Just when B. While C. Soon after D, Before 2. A. to give B. giving C. given D. being given 3. A. Wherever B. Whatever C. However D. Whichever 4. A. reason B. cause C. problem D. purpose 5. A. make B. publish C. know D. write 6. A. another B. other C. one another D. the other 7. A. HoweverB. AndC. ThereforeD. So 8. A. value B. ratio C. rate D. speed 9. A. spread B. passed C. printed D. completed10. A. provoke B. jump C. step D. branch 11. A. matters B. affairs C. things D. events 12. A. on B. through C. with D. of 13. A. forms B. existence C. contents D. purpose 14. A. tries to cover B. manages to cover C. fails to cover D. succeeds in 15. A. source B. origin C.course D. finance 16. A. way B. means C. chance D. success 17. A. measures B. measured C. is measured D. was measured 18. A. somewhat B. little C. much D. something 19. A. offering B. offered C. which offered D. to be offered 20. A. by B. with C. at D. about Part II Reading comprehension (20x2=40%) Directions: There are four passages in this part. After each passage, there are five questions. You are to choose the best answer for each question. Write your answers on the answer sheet. Passage One Early in the sixteenth century, Francis Bacon proposed that science consisted in the elevation of the authority of experiment and observation over that of reason, intuition, and convention. Bacon thought that as more and more reliable and precise particular facts, accumulate, they can be classified and generalized, resulting in an ever-expanding hierarchy of useful “axioms”. This is what he meant by" induction". Although many people today continue to regard the collection of facts and their arrangement by induction into theories as the heart of scientific method, Bacon's conception of what facts and theories are and of the relationship between them was hopelessly unrealistic even in his own time. The most important early scientific discoveries …… such as those made by Galileo about the movement of the earth, by Keppler about the elliptical shape of planetary orbits, and later by Newton about the" force" of gravity …… could never have been made if Bacon's rules had prevailed. Determined to avoid all premature speculations, Bacon proposed that data gathering be carried out by illiterate assistants with no interest in whether an experiment turned out one way or another. Plain facts, properly arranged, would automatically lead to certain knowledge of the universe. Nothing could be more misrepresentative of the actual problem-solving techniques of the scientific method. That plain facts do not speak for themselves is evident from Bacon's own acceptance of the errors contained in what appeared to be the most "obvious" of facts. For Bacon, that the earth did not move was a fact because it could be seen not to move; and for Bacon it was a-fact that life was being spontaneously generated because maggots always developed in putrid flesh and frogs appeared after every rain. What is clear is that the great breakthroughs of Newton, Darwin, or Marx could never have been achieved solely on the basis of Baconian fact gathering. Facts are always unreliable without theories which guide their collection and which distinguish between superficial and significant appearances. 21. According to Bacon, facts 。

华中科技大学神经解剖学2017年考博真题试卷

华中科技大学神经解剖学2017年考博真题试卷
华中科技大学
医学考博真题试卷
攻读博士学位研究生入学考试试卷
华中科技大学
2017年攻读博士学位研究生入学考试试题
考试科目:神经解剖学
注意:所有答案一律写在答题纸上,写在试题纸上或其他地方一律不给分。
一、名词解释(5*8分=40分)
1.神经节
2.网状结构
3.面神经丘
4.穹隆
5.腰骶干
6.斜方体
7.丘系三角
8.胼胝体
二、简答题(5*12分=60分)
1.手的神经支配。
2.视觉传导通路瞳孔对光反射通路,一侧动眼神经损伤表现及原因。3.源自侧丘脑腹后核的组成纤维传导和功能。
4.大脑语言中枢的位置,名称及损伤表现。
5.海绵窦位置和穿经结构。

华中科技大学历年的考博真题整理2.

华中科技大学历年的考博真题整理2.

华中科技大学历年的考博真题整理2.同济医科大学 2001年泌尿外科(博士一、必答题(15*21 试述创伤的代谢变化及其临床意义2 溶血反应的发病机理及病理变化二选答题(每人必选一题,但是不能选本专业试题,否则没有分数10分 /题1 胃癌淋巴转移途径2 试述开放性骨折的处理原则3 阴囊内肿块常见于哪些疾病?如何诊治?4 急性颅脑损伤的诊治处理原则5 张力性气胸的处理原则6 试述施行活体供脏器移植的基本条件和要求二、专业题(一名词解释 (4分 /题1 尿失禁2 肾积脓3 石街4 精索静脉曲张5 鞘膜积液(二问答题1 试述前列腺癌的诊断和治疗(15分2 试述上尿路结石的诊断及治疗新进展(12分3 试述肾盂癌的诊断和处理原则(13分同济医科大学 2002年泌尿外科(博士一、必答题(30分(一名词解释(3分 /题1 脑再灌注损伤2 中厚皮片(二问答题(12分 /题1创伤后组织修复过程分为哪几个阶段?各阶段的主要特点是什么?2 试述肿瘤浸润与转移过程中的相关因素专业题一、名词解释(3分 /题1 尿频2 PSA3 少尿 /无尿4 肾积水5 皮质醇症二、问答题1简述尿失禁的分类及常见原因(10分2 男性前尿道损伤的治疗原则(15分3 膀胱移行细胞癌的临床分期?表浅膀胱癌的治疗原则(15分4 良性前列腺增生的诊断和鉴别诊断(15分同济医科大学 2003年泌尿外科(博士一、必答题(30分(一名词解释(5*21 成人型呼吸窘迫综合征(ARDS2全身性炎症反应综合征(SIRS3 痈4 海绵状血管瘤5 负氮平衡(二问答题(5*61 灭菌与消毒有何区别?2 高钾血症的原因有哪些?如何诊断和处理?3 简述肠外营养有哪些常见的并发症?如何处理?4 简述外科如何选择和使用抗菌药物?5 创伤后组织修复分几个阶段?简述其修复过程?二、专业题(一名词解释(4*31 膀胱破裂的导尿实验2 K抗原3 前列腺痛4 肾皮质结核(二问答题(8*61 什么叫尿频,引起尿频的原因有哪些?2 叙述多囊肾的病因及分类3 叙述分段尿及前列腺培养检查方法4 叙述双侧上尿路结石的手术原则5 叙述膀胱镜下各期膀胱肿瘤的肉眼特征6 叙述肾积水的常见原因7 原发性醛固酮增多症有那些临床表现?8 叙述精索静脉曲张的发病机理同济医科大学 2005年泌尿外科(博士公共部分:一、名解SIADH SIRS二、问答:1、成分输血的种类及适应症2、肠源性感染的发病机制3、代酸的分型及常见原因泌外:一、名解肾积脓浅表性膀胱肿瘤Cushing`s syndrome Peyronie disease二、问答1、简述 BPH 的病生特、各自引起的临床症状和治疗方案2、上尿路结石的微创方法及适应症3、前列腺癌的治疗4、肾结核的鉴别诊断同济医科大学 2006年泌尿外科(博士外科公共部分名词解释 :基因诊断条件性感染CARS问答 :1、肠内营养的适应症2、自体输血的适应症及禁忌症泌尿外科部分名词解释 :肾后性肾功衰微创泌尿外科充盈性尿失禁尿崩症问答 :1、输尿管反流的原因危害及处理2、泌尿系感染与妇科生理变化的关系3、 KUB 的作用4、膀胱造瘘的并发症及预防27. 同济医科大学分子生物学(博士[Re: 0分会员] Copy to clipboard Posted by: 0分会员Posted on: 2008-01-22 17:57同济医科大学 2001年分子生物学(博士一、英汉互译下列名词,并加以解释 (30分1、 transposable element2、 restriction enzyme3、 derepression4、 gene therapy5、 calmo dulin6、操纵子7、反式作用因子8、基因组9、原癌基因10、多克隆位点二、试述反式作用因子的结构特征及作用方式 (20分三、试述 2型限制酶的功能与特性 (20分四、试述影响原核基因转录的因素 (20分五、试述病毒核酸的结构特点 (10分华中科技大学同济医学院 2002年攻读博士学位研究生入学考试试题考试科目:分子生物学(基础课科目代码:811一名词解释并写出对应的英文名词(共10小题,每小题5分,共50分1. 克隆载体2. 表达载体3. 假基因4. 微卫星序列5. 回文结构6. 启动子7. 癌基因 8. 多克隆位点 9. 增强子 10. 开放阅读框架二问答题(共 3小题,每小题 10分,共 30分1. 若要获得 IL-2的基因工程产品,你应该怎么做?2. 真核细胞中基因表达的特异性转录调控因子是指什么?根据它们的结构特征可以分为哪些类型?它们和 DNA 相互识别的原理是什么?3. 简述细胞内癌基因激活的方式?三选答题(任选 2小题,每小题 10分,共 20分1. 简述基因治疗中转移外源基因至体内的非病毒和病毒途径的主要原理2. 请你评价一下人类基因组计划(HGMP 完成的意义(蒲А⒕ ? 济和社会的??BR>3.分子生物学实验中所涉及的引物有哪几种,各有什么用途和特点?4. 简述 3~4种 PCR 衍生技术及其应用同济医科大学 2003年分子生物学(博士一名词解释并写出对应的英文名词(共10小题,每小题5分,共50分1. 克隆载体2. 表达载体3. 断裂基因4. 双脱氧核苷酸(简单5. 多克隆位点6. 启动子7. 癌基因8. 核糖体结合位点(简单9. 增强子10. 开放阅读框架二问答题(共3小题,每小题10分,共30分1. 什么是分子克隆技术?它的主要步骤是什么?2. 真核细胞和原核细胞基因表达在转录水平上调控的特点。

华中科技大学耳鼻喉科学2017年考博真题考博试卷

华中科技大学耳鼻喉科学2017年考博真题考博试卷
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攻 读 博 士 学 位 研 究 生 入 学 考 试 试 卷
医学考博真题ห้องสมุดไป่ตู้卷
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华中科技大学
2017 年攻读博士学位研究生入学考试试题
考试科目:耳鼻喉科学 注意:所有答案一律写在答题纸上、写在试题纸上或其他地方一律不给分。 一、名词解释 1、 大前庭水管综合症 2、 cortis 器 3、 颈静脉孔综合症 4、 鼻周期 5、 咽旁间隙 二、简答题 1、扁桃体切除术的适应症。 2、气管切开术的适应症。 3、Fess 的基本原理。 4、劲部肿块 4 个 80%,3 个 7 规律。 5、面神经分段及分支。 三、问答题 1、喉癌的分型及临床特点。 2、鼓室各壁结构及鼓室内容物。 3、感应神经性聋的病因及防治。 4、鼻咽癌的临床表现及治疗原则。 5、颈部分界分区。

华中科技大学耳鼻喉科学2017年考博真题试卷

华中科技大学耳鼻喉科学2017年考博真题试卷
华中科技大学
医学考博真题试卷
攻读博士学位研究生入学考试试卷
华中科技大学
2017年攻读博士学位研究生入学考试试题
考试科目:耳鼻喉科学 注意:所有答案一律写在答题纸上、写在试题纸上或其他地方一律不给分。 一、名词解释
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1、 大前庭水管综合症 2、 cortis 器 3、 颈静脉孔综合症 4、 鼻周期 5、 咽旁间隙 二、简答题 1、扁桃体切除术的适应症。 2、气管切开术的适应症。 3、Fess的基本原理。 4、劲部肿块4个80%,3个7规律。 5、面神经分段及分支。 三、问答题 1、喉癌的分型及临床特点。 2、鼓室各壁结构及鼓室内容物。 3、感应神经性聋的病因及防治。 4、鼻咽癌的临床表现及治疗原则。 5、颈部分界分区。
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2017年华中科技大学学博士英语真题

2017年华中科技大学学博士英语真题

Passage 4 (4/63)The fossil remains of the first flying vertebrates, the pterosaurs, have intrigued paleontologists for more than two centuries. How such large creatures, which weighed in some cases as much as a piloted hang-glider and had wingspans from 8 to 12 meters, solved the problems of powered flight, and exactly what these creatures were—reptiles or birds—are among the questions scientists have puzzled over. Perhaps the least controversial assertion about the pterosaurs is that they were reptiles. Their skulls, pelvises, and hind feet are reptilian. The anatomy of their wings suggests that they did not evolve into the class of birds. In pterosaurs a greatly elongated fourth finger of each forelimb supported a wing-like membrane. The other fingers were short and reptilian, with sharp claws. In birds the second finger is the principal strut of the wing, which consists primarily of feathers. If the pterosaurs walked on all fours, the three short fingers may have been employed for grasping. When a pterosaur walked or remained stationary, the fourth finger, and with it the wing, could only turn upward in an extended inverted V-shape along each side of the animal’s body.The pterosaurs resembled both birds and bats in their overall structure and proportions. This is not surprising because the design of any flying vertebrate is subject to aerodynamic constraints. Both the pterosaurs and the birds have hollow bones, a feature that represents a savings in weight. In the birds, however, these bones are reinforced more massively by internal struts.Although scales typically cover reptiles, the pterosaurs probably had hairy coats. T. H. Huxley reasoned that flying vertebrates must have been warm-blooded because flying implies a high rate of metabolism, which in turn implies a high internal temperature. Huxley speculated that a coat of hair would insulate against loss of body heat and might streamline the body to reduce drag in flight. The recent discovery of a pterosaur specimen covered in long, dense, and relatively thick hairlike fossil material was the first clear evidence that his reasoning was correct.Efforts to explain how the pterosaurs became airborne have led to suggestions that they launched themselves by jumping from cliffs, by dropping from trees, or even by rising into light winds from the crests of waves. Each hypothesis has its difficulties. The first wrongly assumes that the pterosaurs’ hind feet resembled a bat’s and could serve as hooks by which the animal could hang in preparation for flight. The second hypothesis seems unlikely because large pterosaurs could not have landed in trees without damaging their wings. The third calls for high waves to channel updrafts. The wind that made such waves however, might have been too strong for the pterosaurs to control their flight once airborne.It can be inferred from the passage that scientists now generally agree that the(A) enormous wingspan of the pterosaurs enabled them to fly great distances(B) structure of the skeleton of the pterosaurs suggests a close evolutionary relationship to bats(C) fossil remains of the pterosaurs reveal how they solved the problem of powered flight(D) pterosaurs were reptiles(E) pterosaurs walked on all fours2. The author views the idea that the pterosaurs became airborne by rising into light winds created by waves as(A) revolutionary(B) unlikely(C) unassailable(D) probable(E) outdated3. According to the passage, the skeleton of a pterosaur can be distinguished from that of a bird by the(A) size of its wingspan(B) presence of hollow spaces in its bones(C) anatomic origin of its wing strut(D) presence of hooklike projections on its hind feet(E) location of the shoulder joint joining the wing to its body4. The ideas attributed to T. H. Huxley in the passage suggest that he would most likely agree with which of the following statements?(A) An animal’s brain size has little bearing on its ability to master complex behaviors.(B) An animal’s appearance is often influenced by environmental requirements and physical capabilities.(C) Animals within a given family group are unlikely to change their appearance dramatically over a period of time.(D) The origin of flight in vertebrates was an accidental development rather than the outcome of specialization or adaptation.(E) The pterosaurs should be classified as birds, not reptiles.Which of the following best describes the organization of the last paragraph of the passage?(A) New evidence is introduced to support a traditional point of view.(B) Three explanations for a phenomenon are presented, and each is disputed by means of specific information.(C) Three hypotheses are outlined, and evidence supporting each is given.(D) Recent discoveries are described, and their implications for future study are projected.LSAT第27套 SECTION IMost office workers assume that the messages they send to each other via electronic mail are as private as a telephone call or a face-to-face meeting. That assumption is wrong. Although it is illegal in many areas for an employer to eavesdrop on private conversations or telephone calls—even if they take place on a company-owned telephone—there are no clear rules governing electronic mail. In fact, the question of how private electronic mail transmissions should be has emerged as one of the more complicated legal issues of the electronic age.People’s opinions about the degree of privacy that electronic mail should have vary depending on whose electronic mail system is being used and who is reading themessages. Does a government office, for example, have the right to destroy electronic messages created in the course of running the government, thereby denying public access to such documents? Some hold that government offices should issue guidelines that allow their staff to delete such electronic records, and defend this practice by claiming that the messages thus deleted already exist in paper versions whose destruction is forbidden. Opponents of such practices argue that the paper versions often omit such information as who received the messages and when they received them, information commonly carried on electronic mail systems. Government officials, opponents maintain, are civil servants; the public should thus have the right to review any documents created during the conducting of government business. Questions about electronic mail privacy have also arisen in the private sector. Recently, two employees of an automotive company were discovered to have been communicating disparaging information about their supervisor via electronic mail. The supervisor, who had been monitoring the communication, threatened to fire the employees. When the employees filed a grievance complaining that their privacy had been violated, they were let go. Later, their court case for unlawful termination was dismissed; the company’s lawyers successfully argued that because the company owned the computer system, its supervisors had the right to read anything created on it.In some areas, laws prohibit outside interception of electronic mail by a third party without proper authorization such as a search warrant. However, these laws do not cover “inside” interception such as occurred at the automotive company. In the past, courts have ruled that interoffice communications may be considered private only if employees have a “reasonable expectation” of privacy when they send the messages. The fact is that no absolute guarantee of privacy exists in any computer system. The only solution may be for users to scramble their own messages with encryption codes; unfortunately, such complex codes are likely to undermine the principal virtue of electronic mail: its convenience.1. Which one of the following statements most accurately summarizes the main point of the passage?(A) Until the legal questions surrounding the privacy of electronic mail in both the public and private sectors have been resolved, office workers will need to scramble their electronic mail messages with encryption codes.(B) The legal questions surrounding the privacy of electronic mail in the work place can best be resolved by treating such communications as if they were as private as telephone conversations or face-to-face meetings.(C) Any attempt to resolve the legal questions surrounding the privacy of electronic mail in the workplace must take into account the essential difference between public-sector and private sector business.(D) At present, in both the public and private sectors, there seem to be no clear general answers to the legal questions surrounding the privacy of electronic mail in the workplace.(E) The legal questions surrounding the privacy of electronic mail in the workplace of electronic mail in the workplace can best be resolved by allowing supervisorsin public-sector but not private-sector offices to monitor their employees’communications.2. According to the passage, which one of the following best expresses the reason some people use to oppose the deletion of electronic mail records at government offices?(A) Such deletion reveals the extent of government’s unhealthy obsession with secrecy.(B) Such deletion runs counter to the notion of government’s accountability to its constituency.(C) Such deletion clearly violates the legal requirement that government offices keep duplicate copies of all their transactions.(D) Such deletion violates the government’s own guidelines against destruction of electronic records.(E) Such deletion harms relations between government employees and their supervisors.3. Which one of the following most accurately states the organization of the passage?(A) A problem is introduced, followed by specific examples illustrating the problem: a possible solution is suggested, followed by an acknowledgment of its shortcomings.(B) A problem is introduced, followed by explications of two possible solutions to the problem: the first solution is preferred to the second, and reasons are given for why it is the better alternative.(C) A problem is introduced, followed by analysis of the historical circumstances that helped bring the problem about a possible solution is offered and rejected as being only a partial remedy.(D) A problem is introduced, followed by enumeration of various questions that need to be answered before a solution can be found: one possible solution is proposed and argued for.(E) A problem is introduced, followed by descriptions of two contrasting approaches to thinking about the problem: the second approach is preferred to the first, and reasons are given for why it is more likely to yield a successful solution.4. Based on the passage, the author’s attitude towards interception of electronic mail can most accurately be described as:(A) outright disapproval of the practice(B) support for employers who engage in it(C) support for employees who lose their jobs because of it(D) intellectual interest in its legal issues(E) cynicism about the motives behind the practice5. It can be inferred from the passage that the author would most likely hold which one of the following opinions about an encryption system that could encodes and decode electronic mail messages with a single keystroke?(A) It would be an unreasonable burden on a company’s ability to monitor electronic mail created by its employees.(B) It would significantly reduce the difficulty of attempting to safeguard theprivacy of electronic mail.(C) It would create substantial legal complications for companies trying to prevent employees from revealing trade secrets to competitors.(D) It would guarantee only a minimal level of employee privacy, and so would not be worth the cost involved in installing such a system.(E) It would require a change in the legal definition of “reasonable expectation of privacy” as it applies to employer-employee relations.SECTION BSome recent historians have argued that life in the British colonies in America from approximately 1763 to 1789 was marked by internal conflicts among colonists. Inheritors of some of the viewpoints of early twentieth-century Progressive historians such as Beard and Becker, these recent historians have put forward arguments that deserve evaluation.The kind of conflict most emphasized by these historians is class conflict. Yet with the Revolutionary War dominating these years, how does one distinguish class conflict within that larger conflict? Certainly not by the side a person supported. Although many of these historians have accepted the earlier assumption that Loyalists represented an upper class, new evidence indicates that Loyalists, like rebels, were drawn from all socioeconomic classes. (It is nonetheless probably true that a larger percentage of the well-to-do joined the Loyalists than joined the rebels.) Looking at the rebel side, we find little evidence for the contention that lower-class rebels were in conflict with upper-class rebels. Indeed, the war effort against Britain tended to suppress class conflicts. Where it did not, the disputing rebels of one or another class usually became Loyalists. Loyalism thus operated as a safety valve to remove socioeconomic discontent that existed among the rebels. Disputes occurred, of course, among those who remained on the rebel side, but the extraordinary social mobility of eighteenth-century American society (with the obvious exception of slaves) usually prevented such disputes from hardening along class lines. Social structure was in fact so fluid—though recent statistics suggest a narrowing of economic opportunity as the latter half of the century progressed —that to talk about social classes at all requires the use of loose economic categories such as rich, poor, and middle class, or eighteenth-century designations like “the better sort.” Despite these vague categories, one should not claim unequivocally that hostility between recognizable classes cannot be legitimately observed. Outside of New York, however, there were very few instances of openly expressed class antagonism.Having said this, however, one must add that there is much evidence to support the further claim of recent historians that sectional conflicts were common between 1763 and 1789. The “Paxton Boys” incident and the Regulator movement are representative examples of the widespread, and justified, discontent of western settlers against colonial or state governments dominated by eastern interests. Although undertones of class conflict existed beneath such hostility, the opposition was primarily geographical. Sectional conflict—which also existed between North and South—deserves further investigation.In summary, historians must be careful about the kind of conflict they emphasize in eighteenth-century America. Yet those who stress the achievement of a general consensus among the colonists cannot fully understand that consensus without understanding the conflicts that had to be overcome or repressed in order to reach it.17. The author considers the contentions made by the recent historians discussed in the passage to be(A) potentially verifiable(B) partially justified(C) logically contradictory(D) ingenious but flawed(E) capricious and unsupported19. According to the passage, Loyalism during the American Revolutionary War servedthe function of(A) eliminating the disputes that existed among those colonists who supportedthe rebel cause(B) drawing upper, as opposed to lower, socioeconomic classes away from the rebelcause(C) tolerating the kinds of socioeconomic discontent that were not allowed toexist on the rebel side(D) channeling conflict that existed within a socioeconomic class into the wareffort against the rebel cause(E) absorbing members of socioeconomic groups on the rebel side who feltthemselves in contention with members of other socioeconomic groups The passage suggests that the author would be likely to agree with which of the following statements about the social structure of eighteenth-century American society?I. It allowed greater economic opportunity than it did social mobility.II. It permitted greater economic opportunity prior to 1750 than after 1750. III. It did not contain rigidly defined socioeconomic divisions.IV. It prevented economic disputes from arising among members of the society.(A) I and IV only(B) II and III only(C) III and IV only(D) I, II, and III only(E) I, II, III, and IV21. It can be inferred from the passage that the author would be most likely to agree with which of the following statements regarding socioeconomic class and support for the rebel and Loyalist causes during the American Revolutionary War?(A) Identifying a person’s socioeconomic class is the least accurate method of ascertaining which side that person supported.(B) Identifying a person as a member of the rebel or of the Loyalist side does notnecessarily reveal that person’s particular socioeconomic class.(C) Both the rebel and the Loyalist sides contained members of all socioeconomic classes, although there were fewer disputes among socioeconomic classes on the Loyalist side.(D) Both the rebel and the Loyalist sides contained members of all socioeconomic classes, although the Loyalist side was made up primarily of members of the upper classes.According to the passage, which of the following is a true statement about sectional conflicts in America between 1763 and 1789?(A) These conflicts were instigated by eastern interests against western settlers.(B) These conflicts were the most serious kind of conflict in America.(C) The conflicts eventually led to openly expressed class antagonism.(D) These conflicts contained an element of class hostility.(E) These conflicts were motivated by class conflicts.The recent, apparently successful, prediction by mathematical models of an appearance of El Nino—the warm ocean current that periodically develops along the Pacific coast of South America—has excited researchers. Jacob Bjerknes pointed out over 20 years ago how winds might create either abnormally warm or abnormally cold water in the eastern equatorial Pacific. Nonetheless, until the development of the models no one could explain why conditions should regularly shift from one to the other, as happens in the periodic oscillations between appearances of the warm El Nino and the cold so-called anti-El Nino. The answer, at least if the current model that links the behavior of the ocean to that of the atmosphere is correct, is to be found in the ocean.It has long been known that during an El Nino, two conditions exist: (1) unusually warm water extends along the eastern Pacific, principally along the coasts of Ecuador and Peru, and (2) winds blow from the west into the warmer air rising over the warm water in the east. These winds tend to create a feedback mechanism by driving the warmer surface water into a “pile” that blocks the normal upwelling of deeper, cold water in the east and further warms the eastern water, thus strengthening the wind still more. The contribution of the model is to show that the winds of an El Nino, which raise sea level in the east, simultaneously send a signal to the west lowering sea level. According to the model, that signal is generated as a negative Rossby wave, a wave of depressed, or negative, sea level, that moves westward parallel to the equator at 25 to 85 kilometers per day. Taking months to traverse the Pacific, Rossby waves march to the western boundary of the Pacific basin, which is modeled as a smooth wall but in reality consists of quite irregular island chains, such as the Philippines and Indonesia.When the waves meet the western boundary, they are reflected, and the model predicts that Rossby waves will be broken into numerous coastal Kelvin waves carrying thesame negative sea-level signal. These eventually shoot toward the equator, and then head eastward along the equator propelled by the rotation of the Earth at a speed of about 250 kilometers per day. When enough Kelvin waves of sufficient amplitude arrive from the western Pacific, their negative sea-level signal overcomes the feedback mechanism tending to raise the sea level, and they begin to drive the system into the opposite cold mode. This produces a gradual shift in winds, one that will eventually send positive sea-level Rossby waves westward, waves that will eventually return as cold cycle-ending positive Kelvin waves, beginning another warming cycle.21. The primary function of the passage as a whole is to(A) introduce a new explanation of a physical phenomenon(B) explain the difference between two related physical phenomena(C) illustrate the limitations of applying mathematics to complicated physical phenomena(D) indicate the direction that research into a particular physical phenomenon should take(E) clarify the differences between an old explanation of a physical phenomenon anda new model of it22. Which of the following best describes the organization of the first paragraph?(A) A theory is presented and criticized.(B) A model is described and evaluated.(C) A result is reported and its importance explained.(D) A phenomenon is noted and its significance debated.(E) A hypothesis is introduced and contrary evidence presented.24. According to the model presented in the passage, which of the following normally signals the disappearance of an El Nino?(A) The arrival in the eastern Pacific of negative sea-level Kelvin waves.(B) A shift in the direction of the winds produced by the start of an anti-El Nino elsewhere in the Pacific.(C) The reflection of Kelvin waves after they reach the eastern boundary of the Pacific, along Ecuador and Peru.(D) An increase in the speed at which negative Rossby waves cross the Pacific.(E) The creation of a reservoir of colder, deep ocean water trapped under the pile of warmer, surface ocean water.25. It can be inferred from the passage that which of the following would result fairly immediately from the cessation of the winds of an El Nino?I. Negative Rossby waves would cease to be generated in the eastern Pacific. II. The sea level in the eastern Pacific would fall.III. The surface water in the eastern Pacific would again be cooled by being mixed with deep water.(A) I only(B) II only(C) I and II only(D) I and III only(E) I, II, and III26. Which of the following, if true, would most seriously undermine the validity of the model of El Nino that is presented in the passage?(A) During some years El Nino extends significantly farther along the coasts of Ecuador and Peru than during other years.(B) During periods of unusually cool temperatures along the eastern Pacific, an El Nino is much colder than normal.(C) The normal upwelling of cold water in the eastern Pacific depends much more on the local characteristics of the ocean than on atmospheric conditions.(D) The variations in the time it takes Rossby waves to cross the Pacific depend on the power of the winds that the waves encounter.(E) The western boundary of the Pacific basin is so irregular that it impedes most coastal Kelvin waves from heading eastward.汉译英:1有些人认为多次短时间充电,会对电池造成伤害。

2017-2018年中国科学院自动化研究所考博试题 模式识别

2017-2018年中国科学院自动化研究所考博试题 模式识别
x6=(5, 3)T 。请完成如下任务: (1)、写出线性支持向量机需要求解的原问题和对偶问题(不要求进行求解);(10 分) (2)、当软间隔惩罚参数 C 取值很大时,定性地画出所得到的分类决策面,并解释原因;
(提示:先将 6 个样本点在答题纸上画出,然后画出分类决策面)(3 分) (3)、当软间隔惩罚参数 C 取值很小时,定性地画出所得到的分类决策面,并解释原因。
(2)、在某次迭代时,假定原来属于 Di 个聚类中的样本 xˆ 被分配至 Dj 个聚类,试证明这种分
配会导致
Jj
增加为:
J
* j

J
j

nj
xˆ m j nj 1
2
。(5分)
4. (10 分). 关于 AdaBoost 方法。假定有 n 个 d 维空间中的训练样本{x1, x2, , xn} Rd ,进一
步假定这些样本属于两个不同的类别。请完成如下任务: (1)、基于这些样本,请简述采用 AdaBoost 方法学习一个两类分类器的计算步骤;(6 分) (2)、请解释为什么 AdaBoost 经常可以在训练误差为零时继续训练还可以带来测试误差继续
下降。(4 分)
(未完待续)
科目名称:模式识别
第1页 共2页
(10 分) (2)、对上述 8 个样本,假设前 4 个样本属于第一类,后 4 个样本属于第二类,现在要求只
使用一个特征达到这样的分类目的。请采用 J5
Sb Sw Sw
判据对特征进行选择,给出
计算过程和结果。(10 分)
6. (16 分). 已知正类样本点 x1=(1, 1)T,x2=(1, 0)T,x3=(3, 3)T,负类样本点 x4=(4, 3)T,x5=(4, 4)T ,

华中科技大学博士研究生英语入学考试试题

华中科技大学博士研究生英语入学考试试题

目录2005年春季华中科技大学博士研究生英语入学考试试题 (2)2005年秋季华中科技大学博士研究生英语入学考试试题 (8)2006年春季华中科技大学博士研究生英语入学考试试题(1) (15)2006年春季华中科技大学博士研究生英语入学考试试题(2) (21)2005年春季华中科技大学博士研究生英语入学考试试题参考答案 (28)2005年秋季华中科技大学博士研究生英语入学考试试题参考答案 (29)2006年春季华中科技大学博士研究生英语入学考试试题参考答案(1) (30)2006年春季华中科技大学博士研究生英语入学考试试题参考答案(2) (31)2005年春季华中科技大学博士研究生英语入学考试试题Cloze (1x10=10%)Directions: In this part you are asked to choose the best word for each blank in the passage. Write your answers on the answer sheet.Some kids have a hard time 1 to the new freedom that they acquire when they leave high school and come to college. Here you are able to choose 2 or not you want to go to class. However, this responsibility comes with a great price. If you do not go to class, you may miss an important lecture and these are very critical when it comes time for the test that is fifty percent of your grade. With this responsibility I have learned how to manage my time more 3 . 4 hating every minute of school, I value it 5 a time for me to prepare for the big test. This new schedule has also changed me in that now I 6 school is worth my time. I do not dread going to class. Yes, it is boring some of the time but since I only have two to four classes a day for only four days out of the week, it is not as 7__ as high school. Also many of my courses require more in depth thinking. As an alternative to doing worksheets and 8 simple questions, college courses call 9 _ analysis and thought. Almost all of my homework now is writing papers and reading books. These to this routine, I have been able to investigate and recognize meaning more 10 and it has helped me in my thought process.1. A) content B) to adopt C) finding D) adjusting2. A) where B) when C) whether D) if3. A) effective B) efficiently C) effort D) affect4. A) Instead of B) Rather than C) Instead D) Other than5. A) for B) upon C) as D) with6. A) should like B) feel like C) look like D) would like7. A) unpleasant B) pleasant C) enjoyable D) misfortune8. A) answered B) answer C) answering D) to answer9. A) in B) for C) up D) about10. A) likely B) prepared C) ready D) readilyII. Reading comprehension (20x2=40%)Directions: There are four passages in this part. After each passage, there are five questions. You are to choose the best answer for each question. Write your answers on the answer sheet.Passage 1Extremely refined behaviour, cultivated as an art of gracious living, has been characteristic only of societies with wealth and leisure, which admitted women as the social equals of men. After the fall of Rome, the first European society to regulate behaviour in private life in accordance with a complicated code of etiquette was twelfth-century Provence, in France.Provence had become wealthy. The lords had returned to their castles from the crusades, and there the ideals of chivalry grew up, which emphasized the virtue and gentleness of women and demanded that a knight should profess a pure and dedicated love to a lady who would be his inspiration, and to whom he would dedicate his valiant deeds, though he would never come physically close to her. This was the introduction of the concept of romantic love, which was to influence literature for many hundreds of years and which still lives on an a inferior form in simple popular songs and cheap novels today.In Renaissance Italy too, in the fourteenth and fifteenth centuries, a wealthy and leisured society developed an extremely complex code of manners, but the rules of behaviour of fashionable society had little influence on the daily life of the lower classes. Indeed many of the rules, such as how to enter a banquet room, or how to use a sword or handkerchief for ceremonial purposes, were irrelevant to the way of life of the average working man, who spent most of his life outdoors or in his own poor hut and most probably did not have a handkerchief, certainly not a sword, to his name.Yet the essential basis of all good manners does not vary. Consideration for the old and weak and the avoidance of harming or giving unnecessary offence to others is a feature of all societies everywhere and at all levels from the highest to the lowest. You can easily think of dozens of examples of customs and habits in your own daily life which come under this heading.Etiquette cultivated as an art of gracious living ______.has been typical of rich and leisured societiesadvocates that women are the same as menbegan in nineteenth-century Provencelooks down on extremely refined behaviourThe ideals of chivalry demanded that ______.a knight should never have physical relationships with womena knight should inspire his lady to valiant deedsa knight should dedicate his valiant deeds to a womanromantic people should influence literatureThe rules of etiquette in Renaissance Italy ______.were chiefly concerned with the correct use of one's sword or handkerchiefwere practiced by the majority of societydid not apply to a large section of societywere fairly simple to followThe average working man in fifteenth-century Italy ______.spent all his life outdoorsspent all his life in his own poor huthad better social manners than workers todaywas unlikely to have possessed a swordConsideration for the old and weak and the avoidance of giving unnecessary offence to others are ______.the essential basis of all systems of good mannersnot a universal feature of etiquettetaught to the lower classes by the upper classesoften neglected by polite societyPassage 2One day Mr Kerry was walking along the Strand in London, killing time, when his eye was caught by an enormous picture displayed upon the wall of a house. It represented a human figure covered with long, dark hair, with huge nails upon his hands and a most fearful expression. On coming nearer, he heard a man call out "Walk in, ladies and gentlemen, the most wonderful curiosity ever exhibited --only five pence the wild man from Africa -- he eats raw food, and many other pleasing and surprising performances." Mr kerry paid his money and was admitted. At first the crowd prevented his seeing anything, for the place was full to suffocation (窒息), and the noise awful. At last, Mr Kerry obtained, by means of squeezing and pushing, a place in the front, when to his horror, he saw a figure that was far worse than the portrait outside.It was a man, nearly naked, covered with long, shaggy hair, that grew even over his nose and cheekbones. He sprang about, sometimes on his feet, sometimes on all-fours, but always uttering the most fearful yells, and glaring upon the crowd in a manner that was really dangerous. Mr Kerry did not feel exactly happy at the whole proceeding, and began heartily to wish himself outside. Suddenly, the savage gave a more frightening scream than before and seized a piece of raw beef which a keeper extended to him on a long fork. This he tore to pieces eagerly, and ate in the most voracious (贪婪的) manner, among great clapping of hands and other evidence of satisfaction from the audience. "I'll go now," thought Mr Kerry, "for who knows whether, in his hungry moods, he might not fancy finishing his dinner with me." Just at this instant, some sounds struck his ear that surprised him.He listened more attentively and, to his amazement, found that among the most fearful cries and wild yells, the savage was talking Irish. Now, Mr Kerry had never heard of an African Irishman so he listened very closely, and by degrees, not only the words were known to him, but the very voice was familiar, so turning to the savage, he addressed him in Irish, at the same time fixing him with a severe look."Who are you " said Mr Kerry."Billy McCabe, sir.""And what do you mean by playing your tricks here, instead of earning your living like an honest man ""Well," said Billy, "I'm earning the rent to pay you. One must do many strange things to pay the kind of rent you charge."Mr Kerry was walking along the Strand because ______.he had nothing else to dohe was late for an appointmenthe was looking for something to dohe was reluctant to go homeInside the house, at first, Mr Kerry ______.was nearly suffocatedcould see nothingwas pushed aboutcouldn't hear anythingThe wild man gave the impression of being dangerous by ______.the way he movedthe way he dressedthe looks he gavethe cries he madeMr Kerry decided to leave the house because ______.he flt extremely frightenedhe was worried what might happenhe didn't wish to eat with the savagehe feared he might have a heart attackThe wild man surprised Mr Kerry by speaking Irish since ______.he was on show in Londonhe was a primitive savagehe previously spoke gibberishhe was thought to be AfricanPassage 3Having reached the highest point of our route according to plan, we discovered something the map had not told us. It was impossible to climb down into the Kingo valley. The river lay deep between mountain sides that were almost vertical. We couldn't find any animal tracks, which usually show the best way across country, and the slopes were covered so thickly with bushes that we could not see the nature of the ground. We had somehow to break through to the river which would give us our direction out of the mountains into the inhabited lowlands.Our guide cut a narrow path through the bushes with his long knife and we followed in single file. Progress was slow. Then, when we thought we had really reached the river, we found ourselves instead on the edge of a cliff with a straight drop of 1000 feet to the water below. We climbed back up the slope and began to look for another way down. We climbed, slipped, sweated and scratched our hands to pieces and finally arrived at the river. Happily we strode downhill along its bank without having to cut our way. However, after a few miles theriver entered a steep-sided gap between rocks and suddenly dropped thirty-five feet over a waterfall. There was no path alongside it and no way round it.Then one of the guides saw a way of overcoming the difficulty. There was a fallen tree lying upside down over the waterfall with its leafy top resting on the opposite bank below the falls. Without hesitation he climbed down the slippery trunk to show us how easy it was. Having got to the fork of the tree, he moved hand over hand along a branch for four or five feet with his legs hanging in space, then he dropped onto the flat bank on the other side, throwing his arms in the air like a footballer who has scored a goal, and cheerfully waving us on.Having reached the highest point on their route, the travelers expected to be able to ______.A. track animals to the riverB. put away the maps they had been usingC. approach the river from different directionD. get down to the river without much difficulty22.The travelers wanted to get to the river because ______.A. it would lead them to the waterfallB. it would show them which way to goC. it was the only possible route out of the mountainsD. it was a quicker route than going over the mountains23. One reason why the travelers took so long to get to the river was that ______.A. it was too hot to move quicklyB. there was no proper pathC. they all tried to go in different waysD. they could not follow the animal tracks24. The travelers were happy when they reached the river because ______.A. they had a sense of achievementB. the going was much easier thenC. they were eager to see the waterfallD. they knew they were near their destination25. To get past the waterfall the guide had to ______.A. use a fallen tree as a kind of bridgeB. cross the river above the waterfallC. slide down a steep river bankD. swing across the river from a high branchPassage 4Will you be watching 'Horizon' on Monday evening, or is that when you're down at the local HILARY MACASKILL suggests here that tuning in may be advisable.This week's Horizon: How Much Can You Drink Addresses itself to the practical issue of the dividing line between harmless normal drinking and the "serious drinking problem" that troubles an estimated 700 000 people in this country. Too much drinking can have terrible effects on health: in the next 12 months 10 000 people may die prematurely from the effects of drink. Advertisements can no longer characterize alcohol as beneficial. Guinness is not now projected as "good for you". Nevertheless, social drinkers cling hopefully to that scrap of half-remembered research that suggests that a little drink is good for you.Well, perhaps it is. Darts (a game) players can draw comfort from the evidence in the programme that hand shaking lessens after a few drinks. Though it must be added that next day's hand shaking was greater than normal. Moderate drinking, because of the effect of alcohol on the blood, may give some protection against heart disease.But people's bodies vary hugely in their reactions to alcohol. The less fortunate drinkers may get cirrhosis (a kind of disease) of the liver after a far smaller alcohol amount than another drinker.So how much can you drink The answer, if you are a woman, is less that a man. The reason is not another example of rough discrimination but that women, unfair though it may be, are more at risk from alcohol. Doctors recommend a daily limit of six units for a man, four units for a woman.That limit is the aim of those who attend Drink Watchers, formed 18 months ago, which works on similar lines to Weight Watchers. After an initial screening to ensure that they aren't physically damaged by alcohol, Drink Watchers meet weekly to analyze ant discuss the daily records they keep of their drinks. "The aim is to provide a social base as much as anything," says National co-ordinator Geraldine Wilson. "We replace the pub life with a different social life."Enjoying sensible drinking is the goal of Drink Watchers and Geraldine has some useful tips to help people stick to the limit: "Make the first drink a soft one to quench the thirst. Alternate alcohol with mineral water. Put the glass on the table between sips. Distance the glass so you have to make a conscious effort to reach it. Make one drink last 40 minutes. Most important, plan how much to drink in an evening, count the drinks and then stop."26. Based on what do you think this article is writtenA. A magazineB. A newspaperC. A medical journal.D. A TV program.27. Can alcohol ever be good for youA. Yes, in moderate amount.B. No, even in moderate amount.C. Maybe, in moderate amount.D. Never, even in moderate amount.28. How can Drink Watchers help youA. By checking your health.B. By providing social base.C. By helping you cut down on your drinking.D. All the above.29. What do you think the word "soft" in the third line of paragraph 7 meansA. gentleB. non-alcoholicC. mildD. calm30. Which of the following is NOT true according to the textA. 700 000 people in Britain are seriously affected by alcohol.B. 10 000 people are likely to die in the next year because of alcohol.C. Six units of beer for men and 4 units for women everyday is 'safe'.D. Different people react almost the same to alcohol.TranslationSection A From English into Chinese (15%)Directions: Translate the following three underlined parts from English into Chinese and write your translation on the answer sheet.People could land on Mars in the next 20 to 30 years provided scientists can find water on the red planet, the head of NASA's (美国国家宇航局) surface exploration mission said on September 16.Two partially solar-powered "robot geologists" -- Mars Exploration Rovers, or MERs –(机器人地质学者——火星探测漫游者) have been trundling across 3 miles of the planet and into craters since January, beaming back data about the makeup of what scientists believe is Earth's sister planet.1. Asked how long it could be before astronauts land on Mars, Arthur Thompson, mission manager for MER surface operations said, "My best guess is 20 to 30 years, if that becomes our primary priority."The two MER robots, dubbed Spirit and Opportunity, have found ancient evidence that water was once plentiful -- important for scientists hoping to know if there was once -- or could still be -- life on Mars.Without water, the dream of sending astronauts to the often dusty planet, which has rust-colored rocks and where the sky is red and sunsets are blue, couldn't unravel."If we cannot find water,it really makes it difficult to send humans. Water is the key," said Thompson, who was attending a mining engineers' conference.2. Such a mission would take 11 to 12 months to get to Mars and it would be impossible to carry enough water for the astronauts, plus the water needed to make rocket fuel for the return journey, to cool the spacecraft and to generate energy.Thompson said scientists had found a canyon on Mars "that makes the Grand Canyon look like a small canyon," where water could still be present."There are indications that there is actually water that seeps out the side of the canyon, and going down the side it evaporates. We believe it's an ongoing process," he said.3. Three satellites now orbiting Mars are constantly gathering information, and Thompson said, "If there is water, we believe the chances of finding life are greatly increased."Section B From Chinese into English (15%)Directions: Translate the following three underlined parts from Chinese into English and write your translation on the answer sheet.自从1843年第一张圣诞贺卡在伦敦印刷,销售以来,公务贺卡已经成为政治家们节日活动中不可缺少的一部分.1. 德高望众的亚伯拉罕•林肯(Abraham Lincoln)是第一位发现圣诞贺卡中蕴藏着政治效力的美国总统,在此过程中,圣诞老人的形象永远留在了人们心中.美国内战期间,奴隶们控制的南方政权与北方的联邦政府相抗衡,当时林肯总统要求政治漫画家托马斯•纳斯特在圣诞老人的画像上配上联邦军队,旨在鼓舞士兵的士气.托马斯•纳斯特是第一个让胖胖的圣诞老人穿上现在看来传统的红色外套和宽大皮带的人.2. 据说看到这个活泼可爱的家伙站在北方联邦军队一边,南方军队的士气大大的受挫.没过多久,他们就战败了.二战期间,同盟国政府同样用圣诞祝词来鼓舞占领区的战士们,幽默的贺卡给战士们带来了充满希望的援助.3. 事实上,正是从这个阶段开始,圣诞节寄贺卡的传统在美国总统中流传起来——至今他们都是世界上最认真的寄卡人之一.Writing(20%)Directions: You are going to write about 200 words on the following topic "Learning is a life-long profession". You are required to write in three paragraphs. Write your essay on the answer sheet.2005年秋季华中科技大学博士研究生英语入学考试试题I. Cloze (0.5x20=10%)Directions: In this part you are asked to choose the best word for each blank in the passage. Write your answers on the answer sheet.Today, the Tower of London is one of the most popular tourist (1) ___ and attracts over three million visitors a year. It was occasionally used as a Royal Palace for the Kings and Queens of England (2) ____ the time of James I who (3) ____ from 1603 to 1625, but is (4) ____ known as a prison and execution place. Within the walls of the Tower, princes have been murdered, traitors (5) ____, spies shot, and Queens of England beheaded. One of the most famous executions was that of Anne Boleyn in 1536. She was the second wife of Henry VIII. He wanted to (6) ____ her because she could not give him a son, so he accused her of adultery. She was tried and found guilty. She asked to be beheaded with a sword, (7) ____ the usual axe, which can still be seen in the Tower. The sword and executioner were (8) ____ over specially from France and with one (9) ____ the executioner cut off her head.The Tower was also the (10) ____ of one of London's most famous mysteries. King Edward IV died in 1843. His elder son, Edward, became king (11) ____ his father's death. Young Edward lived in the Tower, and the Duke of Gloucester, (12) ____ protector, persuaded Edward's brother, Richard, to come and live there so that they could play together. But then the Duke (13) ____ that he was the new king, and he was crowned instead of the twelve-year-old Edward, (14) ____ himself Richard III.After that, the boys were seen less and less and eventually disappeared. (15) ____ said that they were suffocated in bed by pillows being (16) ____ their mouths. It is believed that Richard ordered their deaths, (17) ____ it has never been proved. In 1674, workmen at the Tower discovered two (18) ____ which were taken away and buried in Westminster Abbey in 1678. The (19) ____ were examined in 1933 and were declared to be those of two children, (20) ____ the age of the Princes.1. A. seats B. scenes C. grounds D. sights2. B. until B. by C. to D. at3. A. reined B. reigned C. powered D. controlled4. A. hardly B. little C. best D. well5. A. ruined B. destroyed C. tortured D. wounded6. A. get the worst of B. get rid of C. get the best of D. get done with7. A. apart from B. besides C. together with D. rather than8. A. brought B. taken C. got D. won9. A. knock B. hit C. shot D. stroke10. A. spot B. scent C. place D. view11. A. on B. at C. with D. by12. A. their B. the C. his D. a13. A. announced B. published C. advertised D. revealed14. A. naming B. calling C. declaring D. giving15. A. That is B. This is C. They are D. It is16. A. forced into B. squeezed forth C. pressed over D. put on17. A. so that B. since C. as D. although18. A. skeletons B. boys C. remains D. dead bodies19. A. ashes B. bones C. corpses D. sketches20. A. definitely B. certainly C. roughly D. possiblyII. Reading comprehension (20x2=40%)Directions: There are four passages in this part. After each passage, there are five questions. You are to choose the best answer for each question. Write your answers on the answer sheet.Passage OneWe all know the situation----a good friend recommends you a restaurant and you are looking forward to a nice quiet dinner, but the meal turns out to be less peaceful than expected as you are joined, in sound, by a number of uninvited guests---- James Last, the Beatles, Mireille Mathieu, Mozart ---- depending on the landlord's fancy. You can count yourself lucky if you happen to like what you hear coming over the loudspeakers. But what about the customers who cannot stand James Last or simply want peace and quiet There is nothing they can do. Radio sets at home can be switched off, but not restaurant loudspeakers. Customers simply become the captive audience of sounds they do not want. Some wine bars in Austria, the home of café music, make a charge known as Schrammelmusik (music cover), which everyone has to pay. But the word is quite misleading ---- payment of the music toll gives no cover ---- quite the opposite.Music has become omnipresent. The selection in restaurants may still be a matter of chance, though it generally reflects nothing more than the doubtful taste of piped-music suppliers. However, in other areas music has long been a means of stepping up profits. An entire branch of industry thrives on this, assembling music by the most sophisticated methods with the customer in mind ---- department store music to produce a demonstrable increase in turnover; office music to improve the working atmosphere; airport and hotel music with its soothing effect; even cowshed music with its impact on milk production.These various forms of music, however different in function, have one thing in common ---- the way in which they are produced. The ancient, venerable concepts of composition and arrangement are naturally ruled out from the start. All musical extremes are deliberately debarred. The music issuing from department store loudspeakers must have a steady volume and avoid sudden effects, notes that are too high or too low and the human voice. With one exception ---- during the Christmas rush children's choirs may be heard encouraging sales by singing 'Silent Night', 'Jingle Bells' and so on.This music is more effective when turned low. The aim of this drizzle of canned sound is not conscious assimilation and it represents something quite new in the history of music. For thousands of years music was made to be listened to. But department store music is meant only to create a warm background. There is no contradiction in the fact that Mozart may sometimes find his way into department store music tapes, though his compositions were not meant as background jingles. But department store wallpaper music is not Mozart ---- it only appears to be. And anything unusual in classical composers, anything that lends character, is simply cut ---- development sections, accents, daring harmonies, provocative instrumentation. All we have left is a melody with no backbone which might just as well have come from a pop-song producer ---- plastic music as it were, whose components all sound exactly the same.The music is not meant to be listened to and that may explain the fact that, while we have associations and action groups against air pollution and the pollution of drinking water, so far no one has got up in arms about damage to our acoustic environment. And so our musical sensitivity will continue to be subtly and gently attacked by the piped music in department stores and offices ---- music which we hear without listening to. Its strategy takes advantage of one simple fact ---- you cannot just close your ears.21. Why does the author describe the customers as a 'captive audience'They usually like the music thrown at them.Because they can't escape the music.He wants to show how easy they are to please.Because they've paid a special charge called a 'music toll'.22. Piped music in restaurants is different from that heard in department stores because ____.it's usually very tastefulit's chosen very carefully by the ownerit tries to create a soothing atmosphereit doesn't aim to increase profits23. According to the writer, what does all piped music always avoidHappy songs.Certain instruments.Children's choirs.Any extremes.24. From what the writer says, it's reasonably clear that he or she ____.loves pop musiclikes music in public placesenjoys classical musicis keen on Christmas carols25. The writer of the passage would probably like to ____.join an 'air pollution action group'get rid of music just in restaurantsstart a movement against 'canned music'make people listen to the piped music in public placesPassage TwoThe teacher of reading is involved, whether this is consciously realized or not, in the development of a literate society. And every teacher, therefore, needs to determine what level of literacy is demanded by society, what role he or she should take in achieving the desired standard of literacy, and what the implications of literacy are in a world context.The Unesco report presents a world view of literacy. Too often we limit our thoughts to the relatively small proportion of illiterates in our own country and fail to see it in its international context.The problems facing developing nations are also facing industrialized nations. Literacy, as the report points out, is 'inextricably intertwined with other aspects of national development (and) national development as a whole is bound up with the world context'. Literacy is not a by-product of social and economical development - it is a component of that development. Literacy can help people to function more effectively in a changing environment and ideally will enable the individual to change the environment so that it functions more effectively.Literacy progammes instituted in different countries have taken and are taking different approaches to the problem: for example the involvement of voluntary non-governmental organizations, which underlines the importance of seeing literacy not as a condition imposed on people but as a consequence of active participation within society. People can learn from the attempts of other countries to provide as adequate 'literacy environment'.Who are the 'illiterates' and how do we define them At what point do we decide that illiteracy ends and literacy begins Robert Hillerich addresses these questions. An illiterate, he finds, 'may mean anything from one who has no formal schooling to one who has attended four years or less, to one who is unable to read or write at the level necessary to perform successfully in his social position.' Literacy, he points out, is not something one either has or has not got: 'Any definition of literacy must recognize this quality as a continuum, representing all degrees of development.'An educational definition - i.e. in terms of grades completed or skills mastered - is shown to be inadequate in that educationally defined mastery may bear only minimal relation to the language proficiency needed in coping with environmental demands. From a sociological / economic viewpoint the literacy needs of individuals vary greatly, and any definition must recognize the needs of the individual to engage effectively and to act with responsible participation.Such a broadened definition excludes assessment based on a 'reading-level type'; assessment must, rather, be flexible to fit both purpose and population.。

2017年华科考博真题(自动化学院专业课最新考博真题)

2017年华科考博真题(自动化学院专业课最新考博真题)

2017年华中科技大学线性系统理论(3358)考博试题题一、给定如下系统(20分)[]0),(8.01)( ),(01515)(≥=⎥⎥⎦⎤⎢⎢⎣⎡+--=•t t x t y t x t t X请构造合适的李雅普洛夫函数,并使用该李雅普洛夫函数证明系统在平衡状态是大范围渐近稳定的。

题二、系统的状态方程如下(20分)[])(2 1 3y(t) ),(010)(2000 1301 0)(t x t u t x t X =⎥⎥⎥⎦⎤⎢⎢⎢⎣⎡+⎥⎥⎥⎦⎤⎢⎢⎢⎣⎡---=•试分析该系统能否通过状态反馈任意配置闭环系统的极点;分析能否将闭环系统的极点分别配置到如下位置:}{{}322 ,211-j -j --j j+---+- 若能配置,请求出相应的状态反馈矩阵K 。

题三、给定如下系统(20分)[]⎥⎦⎤⎢⎣⎡==⎥⎦⎤⎢⎣⎡+⎥⎦⎤⎢⎣⎡=•13)0(),(1 0y(t) ),(10)(0 01 0)(x t x t u t x t X 和性能指标函数⎰∞++++=022122212)]()()(2)()()([dt t u t x t x t x t x t y J 计算极小化性能指标的最优控制律和最优性能指标值。

题四、给定如下系统(20分)[])(0 1 1)(),(101)(10111022 1)(t x t y t u t x - - --t X =⎥⎥⎥⎦⎤⎢⎢⎢⎣⎡+⎥⎥⎥⎦⎤⎢⎢⎢⎣⎡-=•试求该系统的降维状态观测器,并将观测器的极点配置为j ±-=22,1λ题五、给定如下时变线性系统(20分)[]]2,0[,)( t 0)(),(110)(00000 1 )(2∈=⎥⎥⎥⎦⎤⎢⎢⎢⎣⎡+⎥⎥⎥⎦⎤⎢⎢⎢⎣⎡=---•t t x e t y t u t x t e e t X t t t 判定该系统是否状态完全能控。

2017-2018年中国科学院自动化研究所考博试题 数学

2017-2018年中国科学院自动化研究所考博试题 数学

中国科学院自动化研究所2017年招收攻读博士学位研究生入学统一考试试卷科目名称:数学考生须知:1.本试卷满分为100分,全部考试时间总计180分钟。

2.所有答案必须写在答题纸上,写在试题纸或草稿纸上一律无效。

注:后面五个试题可能用到以下常数:19192020(0.95) 1.729,(0.975) 2.093,(0.95) 1.725,(0.975) 2.086t t t t ====0.0250.050.100.201.96, 1.64, 1.280.84u u u u ====,其中,()n t α表示自由度为n 的t 分布的上α分位数;u α表示标准正态分布的上α分位数。

一、(18分)已知矩阵011110101A ⎛⎫ ⎪= ⎪ ⎪⎝⎭,试求矩阵A 的分解式A QDT =,其中Q 是正交矩阵,D 是对角矩阵,而T 是主对角线上元素全为1的上三角矩阵。

二、(15分)设12121,,,,,,,n n a a a b b b - 都是非零的实数,n 阶矩阵111211n n n a b b a A b b a --⎛⎫ ⎪ ⎪= ⎪ ⎪⎝⎭ 1. 证明:矩阵A 的秩大于等于 1n - ;2. 证明:矩阵A 有n 个不同的实特征值。

三、(17分)已知矩阵200011101A ⎛⎫ ⎪= ⎪ ⎪⎝⎭,试求矩阵函数sin ,tA A e ,其中,t 是实数。

科目名称:数学第1页 共2页四、(每小题5分共10分)某品牌跑车共有四种颜色:白、蓝、黑、红。

换挡则分为手动与自动。

下表是各种类型的车所占比例:令A={跑车为自动档},B={跑车为黑色},C={跑车为白色},计算:1. ()P B A ;2. ()C P A C ,其中C C 表示C 的补集。

五、(10分)设中国科学院自动化所共有学生1200名,假定一名学生连续一小时不间断用水,需水0.5吨,高峰时期每名学生用水的概率为0.05。

问每天用水高峰时期,每小时供应多少吨水才有95%的把握保证学生用水?六、(每小题5分共10分)设随机变量(,)X Y 的概率密度为1(,)0k y x f x y ⎧≤≤⎪=⎨⎪⎩当其它。

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矿产资源开发利用方案编写内容要求及审查大纲
矿产资源开发利用方案编写内容要求及《矿产资源开发利用方案》审查大纲一、概述
㈠矿区位置、隶属关系和企业性质。

如为改扩建矿山, 应说明矿山现状、
特点及存在的主要问题。

㈡编制依据
(1简述项目前期工作进展情况及与有关方面对项目的意向性协议情况。

(2 列出开发利用方案编制所依据的主要基础性资料的名称。

如经储量管理部门认定的矿区地质勘探报告、选矿试验报告、加工利用试验报告、工程地质初评资料、矿区水文资料和供水资料等。

对改、扩建矿山应有生产实际资料, 如矿山总平面现状图、矿床开拓系统图、采场现状图和主要采选设备清单等。

二、矿产品需求现状和预测
㈠该矿产在国内需求情况和市场供应情况
1、矿产品现状及加工利用趋向。

2、国内近、远期的需求量及主要销向预测。

㈡产品价格分析
1、国内矿产品价格现状。

2、矿产品价格稳定性及变化趋势。

三、矿产资源概况
㈠矿区总体概况
1、矿区总体规划情况。

2、矿区矿产资源概况。

3、该设计与矿区总体开发的关系。

㈡该设计项目的资源概况
1、矿床地质及构造特征。

2、矿床开采技术条件及水文地质条件。

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