可知的
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PART 1 Electrical and Electronic Engineering Basics UNIT 1 A Electrical Networks B Three-phase Circuits UNIT 2 A The Operational Amplifier ——————————— 5 B Transistors UNIT 3 A Logical Variables and Flip-flop —————————— 8 ———————————— 3 B Binary Number System UNIT 4 A Power Semiconductor Devices —————————— 11 B Power Electronic Converters UNIT 5 A Types of DC Motors —————————————15 B Closed-loop Control of DC Drivers UNIT 6 A AC Machines ———————————————19 B Induction Motor Drive UNIT 7 A Electric Power System ————————————22 B Power System Automation PART 2 Control Theory UNIT 1 A The World of Control ————————————27 B The Transfer Function and the Laplace Transformation UNIT 2 A B —————29 Stability and the Time Response ————————— 30 ————————————— 32 Steady State————————————————— 31 UNIT 3 A The Root Locus B The Frequency Response Methods: Nyquist Diagrams ————— 33 UNIT 4 A The Frequency Response Methods: Bode Piots ————— 34 B Nonlinear Control System 37 UNIT 5 A Introduction to Modern Control Theory B UNIT 6 State Equations 40 38 A Controllability, Observability, and Stability B Optimum Control Systems UNIT 7 A Conventional and Intelligent Control B Artificial Neural Network PART 3 UNIT 1 Computer Control Technology A Computer Structure and Function B 42 43 44 Fundamentals of Computer and Networks UNIT 2 A Interfaces to External Signals and Devices B The Applications of Computers 46 UNIT 3 A PLC Overview B PACs for Industrial Control, the Future of Control 1 UNIT 4 A Fundamentals of Single-chip Microcomputer B Understanding DSP and Its Uses 49 UNIT 5 A A First Look at Embedded Systems B Embedded Systems Design PART 4 UNIT 1 Process Control A A Process Control System 50 B Fundamentals of Process Control 53 52 UNIT 2 A Sensors and Transmitters B Final Control Elements and Controllers UNIT 3 A P Controllers and PI Controllers B PID Controllers and Other Controllers UNIT 4 A Indicating Instruments B Control Panels PART 5 UNIT 1 Control Based on Network and Information A Automation Networking Application Areas B Evolution of Control System Architecture UNIT 2 A Fundamental Issues in Networked Control Systems B Stability of NCSs with Network-induced Delay UNIT 3 A Fundamentals of the Database System B Virtual Manufacturing—A Growing Trend in Automation UNIT 4 A Concepts of Computer Integrated Manufacturing B Enterprise Resources Planning and Beyond PART 6 UNIT 1 Synthetic Applications of Automatic Technology A Recent Advances and Future Trends in Electrical Machine Drivers B System Evolution in Intelligent Buildings UNIT 2 A Industrial Robot B A General Introduction to Pattern Recognition UNIT 3 A Renewable Energy B Electric Vehicles 2 UNIT 1 A
电路 电路或电网络由以某种方式连接的电阻器,电感器和电容器等元件组成。如果网络不包含能源,如电池或发电机,那么就被称作无源网络。换句话说,如果存在一个或多个能源,那么组合的结果为有源网络。在研究电网络的特性时,我们感兴趣的是确定电路中的电压和电流。因为网络由无源电路元件组成,所以必须首先定义这些元件的电特性。就电阻来说,电压-电流的关系由欧姆定律给出,欧姆定律指出:电阻两端的电压等于电阻上流过的电流乘以电阻值。在数学上表达为: u=iR (1-1A-1)式中 u=电压,伏特;i =电流,安培;R =电阻,欧姆。纯电感电压由法拉第定律定义,法拉第定律指出:电感两端的电压正比于流过电感的电流随时间的变化率。因此可得到:U=Ldi/dt 式中 di/dt =电流变化率,安培/秒; L =感应系数,享利。电容两端建立的电压正比于电容两极板上积累的电荷 q 。因为电荷的积累可表示为电荷增量 dq 的和或积分,因此得到的等式为 u=,式中电容量 C 是与电压和电荷相关的比例常数。由定义可知,电流等于电荷随时间的变化率,可表示为 i = dq/dt。因此电荷增量 dq 等于电流乘以相应的时间增量,或 dq = i dt,那么等式(1-1A-3)可写为式中 C =电容量,法拉。
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PART 1 Electrical and Electronic Engineering Basics UNIT 1 A UNIT 2 A UNIT 3 A UNIT 4 A UNIT 5 A UNIT 6 A UNIT 7 A Electrical Networks ———————————— 3 B Three-phase Circuits The Operational Amplifier ——————————— 5 Logical Variables and Flip-flop —————————— 8 Power Semiconductor Devices —————————— 11 Types of DC Motors —————————————15 AC Machines ———————————————19 Electric Power System ————————————22 B Transistors B Binary Number System B Power Electronic Converters B Closed-loop Control of DC Drivers B Induction Motor Drive B Power System Automation PART 2 Control Theory UNIT 1 A B UNIT 2 A UNIT 3 A UNIT 4 A The World of Control ————————————27 Stability and the Time Response ————————— 30 The Root Locus ————————————— 32 The Transfer Function and the Laplace Transformation —————29 B Steady State————————————————— 31 B The Frequency Response Methods: Nyquist Diagrams ————— 33 The Frequency Response Methods: Bode Piots ————— 34 B Nonlinear Control System 37 UNIT 5 A Introduction to Modern Control Theory B B B PART 3 B B B State Equations Optimum Control Systems Artificial Neural Network Computer Control Technology 42 43 44 Fundamentals of Computer and Networks The Applications of Computers 46 40 38 UNIT 6 A Controllability, Observability, and Stability UNIT 7 A Conventional and Intelligent Control UNIT 1 A Computer Structure and Function UNIT 2 A Interfaces to External Signals and Devices UNIT 3 A PLC Overview PACs for Industrial Control, the Future of Control 1 UNIT 4 A Fundamentals of Single-chip Microcomputer 49 B B PART 4 B B B B PART 5 B B B B PART 6 Understanding DSP and Its Uses Embedded Systems Design Process Control 50 52 53 Fundamentals of Process Control UNIT 5 A A First Look at Embedded Systems UNIT 1 A A Process Control System UNIT 2 A Sensors and Transmitters Final Control Elements and Controllers PID Controllers and Other Controllers Control Panels Control Based on Network and Information Evolution of Control System Architecture Stability of NCSs with Network-induced Delay Virtual Manufacturing—A Growing Trend in Automation Enterprise Resources Planning and Beyond Synthetic Applications of Automatic Technology UNIT 3 A P Controllers and PI Controllers UNIT 4 A Indicating Instruments UNIT 1 A Automation Networking Application Areas UNIT 2 A Fundamental Issues in Networked Control Systems UNIT 3 A Fundamentals of the Database System UNIT 4 A Concepts of Computer Integrated Manufacturing UNIT 1 A Recent Advances and Future Trends in Electrical Machine Drivers B B B System Evolution in Intelligent Buildings A General Introduction to Pattern Recognition Electric Vehicles UNIT 2 A Industrial Robot UNIT 3 A Renewable Energy 2 UNIT 1 A
电路 电路或电网络由以某种方式连接的电阻器,电感器和电容器等元件组成。如果网络不包含能源,如电池或发电机,那么就被称作无源网络。换句话说,如果存在一个或多个能源,那么组合的结果为有源网络。在研究电网络的特性时,我们感兴趣的是确定电路中的电压和电流。因为网络由无源电路元件组成,所以必须首先定义这些元件的电特性。就电阻来说,电压-电流的关系由欧姆定律给出,欧姆定律指出:电阻两端的电压等于电阻上流过的电流乘以电阻值。在数学上表达为: u=iR (1-1A-1)式中 u=电压,伏特;i =电流,安培;R =电阻,欧姆。纯电感电压由法拉第定律定义,法拉第定律指出:电感两端的电压正比于流过电感的电流随时间的变化率。因此可得到:U=Ldi/dt 式中 di/dt =电流变化率,安培/秒; L =感应系数,享利。电容两端建立的电压正比于电容两极板上积累的电荷 q 。因为电荷的积累可表示为电荷增量 dq 的和或积分,因此得到的等式为 u=,式中电容量 C 是与电压和电荷相关的比例常数。由定义可知,电流等于电荷随时间的变化率,可表示为 i = dq/dt。因此电荷增量 dq 等于电流乘以相应的时间增量,或 dq = i dt,那么等式(1-1A-3)可写为式中 C =电容量,法拉。
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Of course, the yen loans in China at that time task of rebuilding, lack of funds, just to restore the building, played a big role, but the Chinese are not without conscience, China not only to thank the many (not like some Be good at lying to the Japanese said, no thanks to China, thanks to never, China made a real concrete, and also wrote a book report, but also the "friends" like little talk about the substance of ODA , As "friends" to leave more face-saving), but also to use as much as possible the conditions for the promotion of Sino-Japanese friendship (at that time if there is such a media and the Internet, people across the country will be possible,"Hara"), it can be said for a long time in our Is to try not to open Japan's war of "pain"(see the introduction of a large number of Japanese movies on TV we can see the direction of public opinion).
当然,对华日元贷款在当时中国百废待兴,资金缺乏,刚刚恢复建设的时候,发挥了不小的作用,但中国人是有良心的,中国不仅多次感谢了(根本没有象有些善于说谎的日本人说的那样,中国毫无谢意,从不感谢,中国实实在在具体的作了,又出书又写了报告,而且也和这位"友人"一样很少谈论ODA的实质,为"朋友"留些面子),而且也利用尽可能的条件宣传了中日友好(如果当时有现在这样的媒体和互联网,可能全国人民都会"哈日"了),可以说在很长时间我们是尽量不揭日本的战争之"痛"(看看当时大量引进的日本电影电视剧就可知我们的社会舆论的导向了)。
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According to alternation of reorganized-KMT "s class nature what the Comintern and Sdalin defined and KMT "s authentic class nature, we"ll find the inner coincidence between the three, KMT "s class nature what the Comintern defined, Sdalin"s "Three Stages Theory" and errors of "Left deviation in the Agrarian Revolutionary War. They have the same fault: on the theory of Chinese bourgeoisie. Comintern looked on Kuomintang as an organzation of united front, which cut apart the close relationship between Kuomintang and the boureoisie, and then inevitably led to a long-standing mistaken concept, this is, confusing the large boureoisie with the national boureoisie and the petty boureoisie. Therefore, as the large boureoisie betrayed the revolution, Comintern regarded the national boureoisie and the petty boureoisie as the underminer of the organzation of the united front, and then struck a heavy blow at then.
考察梳理共产国际、斯大林对改组后国民党性质的判定及其变化和国民党的真实阶级性质可知,共产国际对国民党性质的判定、斯大林"三阶段"论和土地革命战争时期中共党内的历次"左"倾错误三者之间,前后相续,一以贯之,具有内容上的共通性和逻辑上的连续性,它们共同的要害是共产国际、斯大林有关中国资产阶级理论的错误,一是共产国际混淆在半封建半殖民地中国的带买办性的大资产阶级与民族资产阶级,二是把民族资产阶级的妥协与革命的两面性机械地认定为革命与反革命的"两段性",认为中国资产阶级必然要叛变革命。
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In what situation during young children's sociodramatic play involved young children's negotiation behavior?
中文摘要在本研究中,幼儿所进行的是以戏剧的模式为架构之自创故事的社会戏剧游戏,即是幼儿经过故事剧情的创造、角色的设定、剧情的排演与修正,道具与布景的制作的历程,并藉协商的策略来融合同侪间彼此对游戏内涵的意见,达成同侪对社会戏剧游戏的共识,才能够建构出一具有主题剧情、角色与道具的正式社会戏剧游戏,由幼儿创作社会戏剧游戏的历程可知,此研究的情境与一般幼儿自发性的社会戏剧游戏不同。
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The average percent value of G C (49.3%) was less than that of A T (50.7%), there was a bias of the content of G, T in the third codon; The number of transition G-A and T-C were 22, 15 respectively, which were higher than that of transition A-G and C-T, the number of tranversion C-A, T-G is 2 respectively, and other tranversion patterns didnt occur; the probability of transition was higher than that of tranversion , Ts/Tv = 9.5-19, there was the highest number of transition in the third codon. The gamma parameter a of the lst,nd and 3rd codon positions were 0.00572,0.01237 and 1.05239 respectively, they showed that there was adifferent substitution rate at different codon position. Frequences of synonymous codon usage were relatively biased. The average rates of synonymous and nonsynonymous substitution were 0.0787, 0.0011 respectively, there was a significant difference between dS and dN (Z = 4.713, p.01), and the low ratio( CD = 0.0284 .3) of dN/dS ratio impled that there were selective constraints against the nonsynonymous sites in cyt-b gene, The distribution of nonsynonymous codon substitution pattern related to Grantharm distance indicated that the purified selection at 2nd codon positions was more intensive than that at 1st codon positions. The phylogenetic trees supported the view of the double origin of Chinese goose, which means that domestic Chinese goose was derived from Anser cygnoides and domestic European goose, and Yili was derived from Anser anser.
碱基含量分析可知,序列的G C含量(49.3%)<A T含量(50.7%),密码子第三位点的G、T含量都有较强的偏倚性;序列间G→A和T→C的转换数(22次和15次)高于A→G和C→T的转换数(10次和9次),C→A、T→G颠换数均为2次,其余颠换模式均未发生;转换数明显高于颠换数,Ts/Tv=9.5~19,密码子第三位点的转换数最高,呈现了相当强烈的转换偏倚性;密码子第一、二和三位点的gamma分布参数α值分别为0.00572、0.01237和1.05239,表明密码子第一位点的替换速率变异最大,第二位点次之,第三位点的替换速率变异相对较小;编码同一氨基酸的同义密码子并非随机使用,表现出一定程度的使用偏倚性;同义替换速率和非同义替换速率分别为0.0787和0.0011,dS与dN值间的差异极显著(Z=4.713,p<0.01),而ω=0.0284,明显小于0.3,表明雁属鹅细胞色素b基因序列经历了中度净化选择作用;单步非同义替换(Sing-step nonsymonymous codon substitution,SSNCS)分布模式与Grantharm距离之间的关系说明密码子的三个位点所受的净化选择强度不同;构建的最大简约树与邻接树拓扑结构一致,支持中国家鹅的双起源学说,即除伊犁鹅外的其它中国鹅品种起源于鸿雁,伊犁鹅和欧洲的郎德鹅、莱茵鹅起源于灰雁。
- 推荐网络例句
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Do you know, i need you to come back
你知道吗,我需要你回来
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Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.
1〕 杨银书,王祥生,李德昌。安徽省首次发现嗜群血蜱。
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Chapter Three: Type classification of DE structure in Sino-Tibetan languages.
第三章汉藏语&的&字结构的类型划分。