電子導電系數 的英文怎麼說

中文拼音 [diànzidǎodiànxìshǔ]
電子導電系數 英文
perveance
  • 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...
  • 導 : 動詞1. （引導） lead; guide 2. （傳導） transmit; conduct 3. （開導） instruct; teach; give guidance to
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 電子 : [物理學] [電學] electron
  • 系數 : [數學] coefficient; ratio; modulus; quotient; factor
  1. As a result, the electromagnetic field intensity is changed accordingly and fluctuating current in the damper coil is created. damping force is mostly produced because of the phase difference between fluctuating current and displacement of rotor. the formulas of fluctuating current and damping coefficient are deduced theoretically, and the calculated results are consistent with the experimental results

    通過分析發現電磁阻尼器線圈內由於轉子渦動時變化的磁場而產生的波動電流與轉子位移間的相位差是產生阻尼的主要原因，推導了波動電流、阻尼系數的計算公式，並通過實驗展示了被動式電磁阻尼器的阻尼效應。
  2. In the system, the collimation semiconductor laser - scanned beam scanning two perpendiculars direct of one plane of the measured workpiece at the same time is made. the beams with the dimension information of two perpendiculars direct are processed by the scanning receive system, the high - speed photoelectric transition and electronic data process. two measured results of the diametric directs and ellipse tolerance, etc, parameter, of the turning workpiece on the same plane are obtained by non - contact automatic measurement

    在單向激光掃描檢測技術的基礎之上，提出了一種雙向激光掃描檢測系統，其採用激光掃描檢測技術與特殊光學系統相結合，用準直半導體激光掃描光束對被測工件徑向某一截面的兩個相互垂直方向同時掃描，經掃描接收光學系統、高速光電變換、電子學系統和微機數據處理系統，對將攜帶有垂直方向被測量信息的光束進行處理，實現了回轉體工件同一截面兩個垂直方向的徑向尺寸和橢圓度等參數的非接觸自動測量，解決了同時非接觸測量回轉體零件同一截面兩個徑向尺寸的難題，它具有高速，高精度和非接觸自動測量等特點。
  3. Three parameters, the fractional temperature coefficient, the sensitivity of transconductance to voltage supply and improvement factor, are introduced

    在分析中，本論文引入並使用了跨導的相對溫度系數、跨導對電源電壓的敏感度、跨導穩定性改善因子三項指標。
  4. Measurements of the electrical properties of electronic tubes. part 12 : methods of measuring electrode resistance, transconductance, amplification factor, conversion resistance and conversion transconductance

    電子管電性能的測量.第12部分:電極電阻跨導放大系數變頻電阻和變頻跨導的測量方法
  5. The research object of this thesis is a chip - array that is fixed on one of printed circuit boards ( pcb ), which are located in a forced air field ( forced convection ) in an electronic case ; and from the essential equations of airflow we can deduce the mathematical model of the turbulent flow ; then we can establish the finite element algorithm and apply the fe software to work out the equations of turbulent flow, finally we can use the software to display and analyse the field of flow and temperature

    本文以處于強迫空氣對流流場中的某pcb板及其板上的電子元件陣列作為研究對象，推導了紊流流場的數學模型，並建立了相應的有限元求解格式，應用有限元法分析軟體對該系統的紊流流場和溫度場進行了模擬分析：解算出pcb板上各電子元件的溫度分佈；並提出了用於求解系統風道特性曲線的cfd方法。
  6. So, developing expander board for simulation become important the function of expander board is joint between the data bus of pc and the data bus of aviatic electronic system, and operation aviatic electronic system under the control of pc instruction. pc could simulate aviatic electronic device on the ground

    擴展板的重要任務是將專用航電系統的數據總線與pc機的數據總線連接起來，並且依據pc機的指令而操作總線上的子系統，這樣pc機就可在地面上模擬飛機上的慣導系統，火控系統等等。
  7. A new model for the growth stage of surface flashover has been developed according to the experimental results, which is based on the solid band theory. it is suggested that the electron multiplication could be attributed to two processes : one is the secondary electron emission avalanche caused by collisional ionization, the other is the micro - discharge caused by the trap centers of insulator. the trap cente

    電子倍增的過程與材料的表面態直接相關，材料微觀結構的變化和材料的表面處理都能夠導致材料表面態的變化，引起材料的表面二次電子發射系數以及材料中陷階密度和分佈的改變，從而影響了電子倍增的過程，並進一步改變或影響了沿面閃絡的發展過程。
  8. The entropy or number of states of system or subsystem are closely related to interaction of particles and energy level distribution, therefore, to study the temperature dependence of the specific heat may supply some important and useful microscopic information which may play an important role in understanding electronic structure, density of state, phonon spectrum etc. the specific heat measurements at low temperatures also play important roles in the finding of the third law of thermodynamics, the quantum theory of solid and bcs theory for superconducting etc. moreover, specific heat measurements help us to understand the different kinds of phase transitions ( such as : structural phase transition, magnetic phase transition, superconducting phase transition etc. ) and the scaling behavior near the critical point

    系統、子系統的熵或微觀狀態數與微觀粒子間的相互作用及能級分佈密切相關，因此研究比熱與溫度的依賴關系能夠提供被測量系統許多極其有用的微觀信息，對理解固體的電子結構、電子態密度、聲子譜等起著十分重要的作用。低溫比熱的測量和研究對熱力學第三定律、固體量子理論和超導bcs等理論的建立起到了積極的推動作用。比熱研究還有助於認識各類相變如結構相變，磁性相變，超導相變等及臨界點附近的標度規律。
  9. As a high - power twt, we consider the relativistic effect of the solid beam. the numerical results are given in terms of the small signal gain curve and slow - wave ration curve

    作為大功率的行波管，我們考慮了電子注的相對論效應，數值求解「熱」色散方程，得到脊加載盤荷波導幾何參數和電子注參量與小信號增益的關系。
  10. This study was conducted to examine the interrelationship of 10 seed vigor traits in 12 wheat genotypes through variance, co - variance and path coefficient analysis, to determine broad - sense heritability, and to estimate genetic advance under selection. the genotypes showed significant difference for all traits, except for percentage of normal seedling. genetic correlation between conversion efficiency of seed reserve, electrical conductivity with other traits were not significant, showed that selection for any of them might be possible without hampering any other traits. however path coefficient analysis indicated that conversion efficiency of seed reserve, seed reserve utilization ratio have strong direct effect in affecting seedling weight, and that mean germination time has significantly negatively correlated in affecting gi. moderate to high estimates of broad - sense heritability, genetic coefficient of variation and expected genetic advance were obtained for electrical conductivity, germination index, mean germination time, seed dry weigh, seedling dry weigh, seed reserve depletion ratio indicating the possibility for improving these traits

    本研究利用12個普通小麥品種對10個種子活力性狀的遺傳變異和相關研究，表明除正常幼苗百分率外，其餘種子活力性狀在品種間均存在顯著的差異.種子貯藏物質轉換效率、電導率兩個性狀間及與其它性狀均無顯著的遺傳相關，因此對他們的選擇不會影響到其它性狀.通徑分析表明幼苗干重主要取決于種子貯藏物質轉換效率、種子貯藏物質利用速率;發芽指數主要由平均發芽時間決定.電導率、發芽勢、幼苗干重、種子干重、發芽指數、種子貯藏物質消耗比率6個性狀表現中到高的遺傳力、遺傳變異系數和相對遺傳進展，指明通過遺傳育種手段改良這些性狀是可能的
  11. Test results indicated : with the hoist of altitude, the increase of ice amount and the rise of pollutant, the average flashover voltage reduced. the character exponent generally depends on the insulator profile, ice amount, ice state and pollution severity etc. by means of a high - speed camera, a data acquisition system and high voltage test facilities, a series of the flashover processes on ice surfaces were record. the experimental results form this study and the subsequent theoretical analyses suggested : the thermal ionization of the air in front of an arc root resulted in arc movement ; the electrostatic force had an auxiliary effect of impelling arc propagation ; the electrical

    通過對攝像機、數據採集系統及高壓試驗裝置記錄覆冰絕緣子表面閃絡電弧的發展過程的試驗結果進行理論分析得出：弧根周圍空氣的熱電離導致了電弧的發展，靜電場力對電弧的發展起到了加速作用，電擊穿僅發生在閃絡最終的跳躍階段；通過測量閃絡過程中的放電電壓、泄漏電流、閃絡時間、覆冰水電導率、電弧長度及電弧半徑等參數，得到了不同階段電弧（電弧起弧階段、電弧發展階段及完全閃絡）的發展速度、臨界電弧長度均隨覆冰水電導率的增加而減小。
  12. The voltage of lithium - intercalation reaction, impedance and structural stability of intercalation - type cathode material were analysed and calculated. theoritical results show that the reaction voltage depends on the content of lithium and the bond energy, and that the key ways to lower the electrode impedance are to increase the electronic conductivity of the electrode and the diffusion coefficient of lithium ion in the host and to decrease the size of powder. in addition, the thermal stability of lithium - insertion structure can be improved by using crystallographic co - lattice theory and doping treatment

    本文從嵌入式陰極材料的嵌鋰反應的電壓、阻抗及結構穩定性的分析和理論計算著手，得到了電壓取決于基體中各種離子間的鍵能及鋰含量、降低電極阻抗的關鍵是提高電子型導電性和li ~ +在基體中的擴散系數及減小粉末粒度的理論依據及其利用晶體的共格原理和摻雜改性的方式來提高材料嵌鋰結構的熱穩定性的設計思路。
  13. The filled skutterudite compounds attract aboard attention owing to their high mobilities and relatively large seebeck coefficients in the middle temperature range of 600 - 800k. but their thermal conductivities are very high, so the problem how to decrease their lattice thermal conductivities and improve their zt values becomes a research hotspot

    填充式skutterudite化合物由於在中溫領域（ 600 800k ）具有很高的載流子遷移率和較大的seebeck系數而引起人們的廣泛關注；但其熱導率k較高，因而如何降低晶格熱導率kl ，提高其熱電性能指數zt值已成為研究的熱點。
  14. Audio high density. system of digital audio recording on grooveless discs, employing an electronically - guided capacitance pickup

    音頻高密度。非凹槽唱片上的數字音頻錄音系統，採用一種電子導向的電容拾音器。
  15. After target is detected the on - board avionics suite in combination with the automatic control system of the helicopter solve the task of bringing the helicopter to the designated point and automatic firing of the weapons selected by the pilot

    當捕獲目標后，機上的自動控制系統與電子系統將解算任務數據，引導直升機飛向敵潛艇水域，並在飛行員指令準許下自動發射武器進行攻擊。
  16. Facilities management ( fm ) is an important part of computerized government affairs, but there are many problems exits in present fm, such as the difficulty to maintain the integrity and greenness of data, the handicap exits in data exchanging and data sharing, the shortness to provide evidence for decision - making, and so on

    城市設施管理是電子政務和數字城市的重要組成部分，但是現有管理系統存在很多問題，主要表現在數據的完整性和現勢性難以保證，數據的交換和共享困難，不能為領導決策提供支持等。
  17. In the framework of the long - range interaction, we study the interfacial effects on the pyroelectric and dielectric susceptibility of a ferroelectric bilayer for the first time. we find that the quantum effect can lead to the disappearance of some of the peaks of the pyroelectric and susceptibility of the bilayer

    我們首次在長程相互作用的框架內，考察了界面對雙層膜的熱電、介電等物理性質的影響，且量子效應的增強會導致鐵電雙層薄膜的熱電系數和介電極化率的某些峰的消失。
  18. In the field of science and techniques of defence, computer digital sumulation technology become the most advancedted technology in the field of military electronic information system, missile weapon system, aero - space project, etc. without support of simulation technology, the development of great national defence project and weaponry can not be as so fast like today

    在國防科技領域，計算機數字模擬技術已成為軍事電子信息系統、導彈武器系統、航空航天工程等研製與實驗中的先導技術，沒有模擬技術的支持，重大國防工程和武器裝備的發展就不可能像今天這樣如此迅速。
  19. This platform employs windows ce. net as operation system, and applys the technology of embedded program - embedded visual c + +. a vector electronical map system is setup. we can display vector map, zoom and roam the map in that system, further more, simple management of map layers and demand information are also realized, further more, we put forward borderline - detection arithmetic to improve speed of display when we roam the map

    開發平臺以windowsce . net為操作系統，運用embeddedvisualc + +嵌入式編程技術，建立了一個矢量電子地圖系統，實現了矢量電子地圖的顯示、縮放、漫遊、圖層管理以及簡單的數據查詢導航功能，提出了用邊界檢測演算法提高電子地圖漫遊時的顯示速度。
  20. With the expansion of e - commerce systems, the magnitudes of users and commodities grow rapidly, resulting in the extreme sparsity of user rating data

    在大型電子商務系統中，用戶評分數據的極端稀疏，導致推薦系統的推薦質量急劇下降。
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