電子電勢計 的英文怎麼說

中文拼音 [diànzidiànshìjì]
電子電勢計 英文
electronic potentiometer
  • 電 : Ⅰ名詞1 （有電荷存在和電荷變化的現象） electricity 2 （電報） telegram; cable Ⅱ動詞1 （觸電） give...
  • 子 : 子Ⅰ名詞1 （兒子） son 2 （人的通稱） person 3 （古代特指有學問的男人） ancient title of respect f...
  • 勢 : 名詞1 （勢力） power; force; influence 2 （一切事物力量表現出來的趨向） momentum; tendency 3 （自...
  • 計 : Ⅰ動詞1 （計算） count; compute; calculate; number 2 （設想; 打算） plan; plot Ⅱ名詞1 （測量或計算...
  • 電子 : [物理學] [電學] electron
  1. With the use of finite method we have developed computer simulation software for vacuum microtriodes with wedge - shaped and cone - shaped cathode on the basis of stduying deeply the field emission theory of vacuum microelectronics. the software included field section, grid point numbering, and the calculation of electric currents, transconductance and cathode capacitance, moreover, it can simulate the properties of vacuum microeletronic with variant structures and sizes. the relationship was studied and simulated among electic properties and device structures, sizes and cathode materials etc. the optimized design of vacuum microtiode was proposed

    本文在深入研究真空微電子器件場致發射理論的基礎上，根據圓錐形、楔形陰極真空微電子三極體的不同特點，分別建立了物理和數學模型，在考慮空間電荷密度影響的前提下，以有限元法為基礎採用迭代的方法計算出真空微電子三極體內的電勢分佈情況，繪制出了等勢線、電子軌跡線，並得到了器件電學性能隨幾何參數的變化情況。
  2. Flash memory becomes an indispensable kind of products of semiconductor memories for its advantage of high speed. its usages in today ' s computer communication and consumer electronics are wide and more popular

    如今flashmemory由於其自身的高速的優勢而使得它成為半導體存儲器中不可或缺的一類產品，它在計算機、通訊和消費類電子產品中的應用越來越廣泛，越來越普遍。
  3. By making some assumptions, collision frequency were presented. then the the flocculation kinetics model was established through population balance equation. comparison of experimental data and modeling results indicate that there are the same trend between the two. so the model can predict floes number and size during flocculation of yellow river ' s loess particles without using empirical parameters. the tem and sem were used to obsever floes in the study of floe structure. the flocculation was divided as flocculi, floc and floe aggregate. the floes structure model was established by assumption that particles position in floe accords with tetrahedron. the fractal dimension of model and experimental floes was found to be coincidentso the model can reflect the structure of flocs formed in flocculation of yellow river ' s loess particles by macromolecule flocculant at a certain extent

    最後，本文還對絮凝動力學和絮體結構進行了研究，在前人研究的基礎上，針對高分子絮凝黃河泥沙，對絮凝過程作了一些符合試驗條件的假設，建立了顆粒碰撞頻率表達式，應用了顆粒數量平衡方程，從而建立了絮凝過程的動力學生長模型，模型計算結果與試驗數據對比表明，二者趨勢一致，在沒有使用經驗參數的情況下基本上能夠描述黃河泥沙絮凝過程中絮體數量和尺寸分佈的變化過程；對絮體結構的研究中，應用掃描電子顯微鏡和透射電子顯微鏡對絮體進行了觀察，將絮體分為絮粒、絮團和絮網三個不同的生長階段，通過假設顆粒結合位置符西安建築科技大學博士學位論文合正四面體，建立了絮體結構模型，計算得到的模型絮體分形維數基本與試驗中的實際絮體相符，在一定程度上能夠反映高分子絮凝黃河泥沙生成的絮體結構。
  4. The industrial development in shandong should be located on the above - mentioned superior industries, known as the industries which is " inoculated " by the high and new technology and upgraded such as the leading industry like mechanism, electron, petrifaction and etc, or the traditional industry like energy source, textile, foodstuff, metallurgy and etc, or the high and new technique industry like electronic message, biological engineering, ocean and etc. correspond with the development and grandness of these strategic industry, the famousbrand products including the products of the household appliances, the utility type sedan, the refine chemical industrial products, computer software, halobios pharmacy, industrial revelation ware and etc should be created gradually, and then improve the structure of the industrial products

    山東省工業發展應定位於上述優勢產業，即經過高新技術「嫁接」和換代升級的機械、電子、石化等主導產業，能源、紡織、食品、冶金等傳統產業，電子信息、生物工程、海洋等高新技術產業。相應于這些戰略產業的發展和壯大，逐步創造出包括家電、經濟型轎車、精細化工產品、計算機軟體、海洋生物制藥、工業新材料製品等在內的名牌產品，並進而改善工業產品結構。隨著中國加入世貿，為應對經濟全球化的挑戰，關于產業競爭力的研究成為一大熱點，但以往的研究都側重於從國家或企業的角度考慮問題，本文試圖從區域經濟的角度研究產業競爭力，探索提升產業競爭力的途徑，為研究中國產業國際競爭力提供借鑒和參考。
  5. Abstract : the effect of correction of self - consistent potential on electronic structure in simple cubic nanocrystal particles is calculated by means of the green ' s function method in the tight - binding approximation, taking only the nearest neighbor matrix elements into account. the numerical results show that the electronic energy spectrum is shifted, the chemical potential is not equal to the atomic energy level, the electronic density at each lattice point is changed, and the variation of electronic density at surface lattice point is the largest

    文摘:在緊束縛近似下，只計及最近鄰的矩陣元，採用格林函數計算了自洽勢修正對簡立方納米晶體顆粒的電子結構的影響，發現電子能譜發生了移動，化學勢不等於格點原子能級，各格點的電子密度也發生了變化，其中以表面格點的電子密度變化最大。
  6. Electronic commerce has changed the organization and procedures of management and other sides of accounting environment that will impact traditional accounting convention and recognition

    電子商務使企業的組織形式、生產經營方式和企業業務流程等會計環境因素發生變革，勢必對傳統的會計假設、會計確認等產生重大沖擊。
  7. Coming with the development of the electron technology and computerization, the application of the digitalization in security technology and safety development becomes an inevitable trend in the globe

    工程概況隨著電子技術和計算機技術的發展，安全技術防範領域的數字化應用已經成為一種必然的趨勢。
  8. From the paper, it can be concluded that it is necessary to make many intellectual electronic equipments access the internet in the new era with the development of the computer, communication and the network technique

    隨著計算機、通信及網路技術的發展，實現大量智能電子設備與internet的結合，即電子設備web化是信息時代的新趨勢。
  9. From the paper, it can be concluded that it is necessary to make many intellectual electronic equipments access the internet in the new era, with the development of the computer, communication and the network technique, and the embedded network platform based on the advanced x86 microcontroller has the characteristics of simplity, clarity and high - adaptability in the applications, it can be widely applied to many industrial fields such as power automation, communication terminal, monitoring and measuring system on line, embedded web, network protocol transformation, intellectual instruments etc

    縱觀全文，得出如下結論：隨著計算機、通信及網路技術的發展，實現大量智能電子設備與internet的結合，即電子設備web化是信息時代的新趨勢。基於本文方案構建的高端x86嵌入式網路平臺具有應用開發簡單快速、靈活適應的特點，可廣泛應用於電力自動化及各種電氣測控設備、通訊終端、在線監測系統、嵌入式web 、網路協議轉換、智能儀器儀表等眾多工業領域。
  10. The primary characterristics of this education plan is to strengthen the foundation of physics, and attach importance to practical activities, relying on bupt ' s advantages in electronics and information science

    該培養計劃的主要特點是加強物理科學基礎、充分依託我校在電子信息領域的優勢和重視實踐環節等。
  11. The stability of electric power system has been being focused for a long time toprevent a power system from losing synchronism after sudden fault ， researchers have done much work and got many accomplishments this paper applied the direct feedback linearization ( dfl ) technique on the power system ， a strong nonlinear system simulation results by matlab proved this method efficiency main works and results are as follows ： this paper compared some existing methods in excitation control ， fast valve control and coordinated control respectively, analyzed the developments and actuality of nonlinear control research in brief, illustrated why ransient stability could be greatly improved by using the fast valve control in chapter 3 ， indicated the importance of coordinated control farther this paper introduced the inverse system theory, based on which ， discussed the dfl theory, pointed out which had consistency with the inverse theory, expanded the dfl theory combined the idiographic model equations ， made which adapt to the model of a single machine - infinite bus power system this paper referenced abundance articles and educed a set of equations ， which could describe the dynamical process of excitation and fast valve control for synchronous generators in the equations ， there were several very important parameters of power system - - rotor angle ( ) ， rotor speed ( ) ， generator q axis voltage ( eq ) ， transient voltage ( e ' q ) ， active power ( pe ) ， mechanical input power ( pm ) ， valve opening ( ) ， generator terminal voltage ( vt ) ， based on the model ， nonlinear coordinated controller and terminal voltage optimal controller have been designed by using the expanded dfl theory and lq optimal control theory the simulation results showed that the controller could keep power system transiently stable under the effects of a symmetrical 3 - phase short circuit fault ， which achieved better postfault regulation compared with another two routine methods ， one is the proportion excitation controller and proportion fast valve controller, the other is the proportion excitation controller and the optimal fast valve controller, which could exert good performance when met 1ittle disturbance either

    在介紹逆系統理論的基礎上，詳細介紹了dfl理論，通過比較闡明了dfl理論其本質是逆系統方法的一類，並結合具體課題推導出的模型方程將dfl理論進行了擴展，使之適應于電力系統這個強非線性對象。通過參考大量的書籍文獻推導出一套實用的可將大型汽輪發電機勵磁與汽門綜合起來進行控制的模型方程，此模型方程涵蓋了電力系統中特別引人注目的幾個量- -轉子角、轉子轉速、發電機q軸電勢eq 、暫態電勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端電壓vt ，在此基礎上建立了實用的電力系統簡化的數學模型，並將擴展的dfl理論應用於此模型系統，結合線性二次型最優控制理論設計出大型汽輪發電機的非線性綜合控制器及機端電壓最優控制器，通過模擬實驗與採用常規的按電壓偏差進行調節的比例式勵磁控制器+汽門比例控制及採用常規的按電壓偏差進行調節的比例式勵磁調節器和基於二次型性能指標設計的最優快控汽門（考慮發電機的飽和因素）進行了對比，證實了採用此種控制器可以有效地提高電力系統的暫態穩定性，並且在電力系統遭受小干擾時同樣具有良好的調節性能。
  12. It is observed that the industries of the first group and the second group are the superior industries in shandong province. according to the industry groupings analyses, we can make a discovery of a distinguishing characteristic : in shandong province, the industries with the actual competitive power are mostly dispersed over the resource - intensive industries, such as the industries of energy source, foodstuff, textile and etc, they are all the resource - intensive industries, while the industries with the potential competitive advantages are primarily the capital fund and the technology intensive industries, including the industries of electron, pharmacy, mechanism, instrumetation and etc, they are all the capital fund and technology intensive industries

    通過對山東省37個工業行業的量化計算，經分析可以將山東省工業行業分成三組：分別是具有現實競爭優勢的工業行業、具有潛在競爭優勢的工業行業和完全不具有競爭優勢的工業行業，根據產業分組分析，可以發現一個明顯特徵：山東省具有現實競爭優勢的產業主要分佈在資源密集型產業中，如能源、食品、紡織等都屬于資源密集型產業，而具有潛在競爭優勢的工業行業主要是資金技術密集型產業，包括電子、制藥、機械、儀器儀表等都屬于資金技術密集型產業。
  13. Potentiometers for use in electronic equipment ; part 1 : generic specification ; amendment 1

    用於電子設備的電勢計;第1部分:一般規范.第1次修改
  14. On the basis of one - electron hartree - fock approximation, the extended - ion method and ab initio method have been used to investigate the f center migration between f ~ - layers, br ~ - layers and from f ~ - layer to br ~ - layer. we have calculated the energy barrier of these three f center migrationes and energy of f center, exciton energy. the results of f center and exciton are in good agreement with the experimential data

    本文是在單電子hartree - fock近似的基礎上採用擴展離子方法和全電子從頭計算方法，研究了bafbr ： eu ~ （ 2 + ）晶格中的f ~ -離子層間的f心遷移， br ~ -層的f心遷移和f ~ -離子與br ~ -離子層間f心遷移過程中的能量勢壘和f心基態、激發態以及激子能量，對于f心和激子的研究結果與實驗符合的很好。
  15. The 4th generation fighters are designed to have the ability of supersonic cruise. stealth and supermaneuverability which is based on the high - tech achievements of various fields including advanced aerodynamics, modern control theory and so on. in order to achieve the air superiority in modern air combats

    為了在現代空戰環境和空戰方式下取得空中優勢，第四代戰斗機設計提出了超音速巡航、隱身、超機動性等設計目標，綜合了多學科先進技術，包括：先進的空氣動力學、控制理論、航空電子技術等。
  16. The vibrational excitation cross - sections of low - energy electron scattering from n2 molecule are studied using the improved body - frame vibrational close - coupling ( bfvcc ) method and quantum scattering potentials including static, exchange and polatization contributions based on ab initio calculations

    摘要使用經孫衛國教授改進后的振動密耦合散射方法和基於量子力學從頭計算得到的靜電、交換與極化散射作用勢，研究了低能電子與n2分子的振動激發散射截面。
  17. We find the decay rate of 7be in be is smaller than that in au. the change of decay rate ( 0. 71 + 0. 32 ) %, indicates that the environment can indeed alter the decay rate, and the electronic affinity is not the only factor affecting the decay rate, so that one has to take the structure of the host materials into account in explaining the change of the decay rate

    本工作將反應p + 7li 7be + n產生的7be分別注入至預計電子親和勢相差較大的材料be和au中，測量7be在這兩種材料中的衰變率的變化，發現7be在be中的衰變率要小於在au中的衰變率，其相對變化為（ o
  18. With the development of computer, power electronic, sensor technology, intelligent electric apparatus is the evolution direction of electric apparatus in 21 century. existing contactor testing technology ca n ' t meet the requirement of theory research and production development. based on analyzing the present situation and trend of contactor testing technology, both of contactor testing technology and performance evaluation method, are researched in this paper

    隨著計算機技術、電力電子技術、傳感器技術的不斷完善和發展，智能電器已經成為21世紀新型電器發展的主要方向，現有的接觸器測試技術己難以完全滿足理論研究和產品丌發的需要，為此，本文在分析接觸器測試技術發展的現狀及趨勢的基礎上，對接觸器動態測試技術及性能評判進行研究。
  19. With the development of information technology which typically includes micro - electronics technology, computer technology and network communications technology, new military revolution is being stimulated. future war will be a fire - new information war, which based on information dominance and charactered with high - transparent war field, whose main campaign pattern is far distance, out of defence area, globally accurate strikes

    以微電子技術、計算機技術、網路通信技術為代表的信息技術的發展促進了新軍事革命的爆發，未來的戰爭將是以信息優勢為基礎，以戰場高度透明化為顯著特徵，以遠距離、防區外、全球化精確打擊為主要作戰模式的全新的信息化戰爭。
  20. So it is necessary to apply semiconductor technology, computer technology and intelligence and ability to better the electronic product design

    因此應用微電子技術、計算機技術和智能化技術改造電子產品的設計已是一種必然的趨勢。
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