量子電勢 的英文怎麼說

中文拼音 [liángzidiànshì]
量子電勢 英文
quantum potential
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 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...
  • 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...
  • 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...
  • 量子 : quantum; gion
  1. Gaas / algaas quantum well photodetectors ( qwips ) are new type devices and progressed rapidly in recent 20 years. qwips utilizing intersubband absorption between gallium arsenide ( gaas ) well and aluminum gallium arsenide ( alxga1 _ xas ) barriers were perfected. therefore, the ability to accurately control the band structure and hence the spectral response, as well as both established technology for growing and processing gaas optical devices and commercially available large area vlsi gaas ic ' s, makes gaas / algaas qwips attractive devices for use in very large focal plane arrays ( fpas ), especially available in the range of long wavelength 8 - 12 urn

    Gaas algaas量子阱紅外探測器（ qwips ）是近二十年來迅速發展起來的一種新型紅外探測器，它成功地利用了gaas勢阱和al _ xga _ （ 1 - x ） as勢壘之間的子帶間吸收，使之具有能帶結構可精確設計從而獲得指定光譜響應的特點，加之成熟的材料生長技術、器件工藝，以及商業上可獲得大面積的vlsigaas集成電路，使得gaas algaasqwips尤其適宜製作8 12 m長波范圍的大面陣探測器。
  2. 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。
  3. 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。
  4. Here are some references for nrqcd & nrqed : renormalization group scaling in nonrelativistic qcd on the multipole expansion, the qcd heavy quark potential to order v * * 2 : one loop matching conditions on matching calculations

    11下面是非相對論性量子色動力學和非相對論性量子電動力學的一些參考資料：關于多極展開的非相對論性量子色動力學中的重整化群定標，關于匹配計算的v * * 2階的量子色動力學重夸克勢：單圈匹配條件。
  5. However, it becomes independent on channel depth in strong inversion region, which is in accordance with numerical analysis

    結果進一步顯示，只考慮方形勢阱的量子力學結果，略高估計了閾電壓，且低估了電子密度。
  6. Considering the relations between idle load characteristics and armature winding parameters of the salient pole propulsive synchronous motor ( spsm ) with its structure, stator tooth and magnetic saturation, the analysis of numerical method for the back electromotive force calculation of spsm is given under various exciting current values

    摘要針對凸極式同步推進電機的空載特性及其繞組參數與電機結構、定轉子齒槽、磁場飽和等緊密相關的問題，分析了在不同勵磁電流下同步推進電機相反電勢的數值計算方法，提出了採用電機磁場能量微動法計算相繞組的參數，並對一臺十二相同步推進電機的繞組參數及其空載特性進行了計算和測量。
  7. The research of the new and high conductivity material of lithium ionic conductor is always an interesting issue in the material field due to its low potential, light weight and providing high cell voltage and energy density

    由於鋰具有較負的電極電勢和較輕的重量，可以為電化學器件提供高的電池電壓和能量密度，所以鋰離子導體高電導率新材料的研究一直是材料研究領域倍受關注的課題之一。
  8. This article reviewed the current status and evolution of unconventional co - deposition mechanisms in zn - based alloy, analysed various standpoints, such as film adsorption mechanism, electrochemical dynamics mechanism, not enough potential depositional mechanism, the effects of ionic. soft and rigid acidity, quantum chemical explanation and interphase effect mechanism, and compared each advantage and deficiency, respectivly ; it could be advantageous to more studies regards to unconventional co - deposition mechanisms in zn - based alloy

    摘要綜述了鋅基合金異常共沉積的機理研究進展情況，通過對膜吸附機理、電化學機理、欠電勢沉積機理、離子軟硬度的影響、量子化學解釋和界面作用機理等各種不同觀點的介紹和分析，總結了各自的優勢和不足，為鋅基合金異常共沉積的機理進一步研究提供了幫助。
  9. Ab initio study on potential energy function and vertical ionization potential for puo molecule

    分子勢能函數與垂直電離勢的量子化學計算
  10. The effect of an applied electric field on the binding energy of shallow donor impurities in rectangular cross section gaas qwws was presented by montes et al, by considering an infinite confinement potential and using a variational scheme

    外加電場對矩形量子阱線中淺施主雜質束縛能的效應是由montes等人提出的，他們採用變分法討論了無限深勢阱的量子線結構。
  11. Adopting rotor field - oriented vector control methods, through which make the stator and the rotor magnetmotive forces can be kept orthogonal all along during operation of the bldcm, combining hysteresis current modulation ' s current control advantage and space voltage vector modulation ' s torque ripple attenuation advantage, then designing a sort of bldcm hysteresis current svpwm control method

    摘要研究採用轉子磁場定向的矢量控制方法使無刷直流電動機定、轉子磁勢矢量始終保持正交，結合滯環調制電流控制和空間電壓矢量調制，設計了無刷直流電動機滯環電流svpwm控制方案。
  12. Standard test method for active matter in anionic surfactants by potentiometric titration

    用電勢滴定法測定陰離子表面活性劑中活性物質含量的標準試驗方法
  13. The performance of modulators employing mqw is governed by the quantum confined stark effect. in order to simplify the analysis of mqw, we obtain an explicit formula concerning the correlations between the gaas / gaalas quantum well widths of finite potential barrier structure and those of infinite potential barrier structure under the condition that the ground state energies are equal at zero bias states. then the transfer matrix method is used to investigate the optical field distribution in the mqw waveguide based on five - step asymmetric coupled quantum well structure that is really used in the modulator

    本論文首先根據量子限制stark效應，發展了等效寬度思想，提出了把單量子阱結構的有限深勢阱的分析轉化為無限深勢阱模型的顯式公式，從而大大簡化了電場下量子阱結構的分析；接著利用轉移矩陣，把周期性的量子阱結構簡化為三層結構，得到了實際採用的非對稱三阱結構量子阱的場分佈，並討論了量子阱結構的偏振特性。
  14. ( 3 ) the electric field breaks the energy degeneracy for symmetrical impurity position in the well, the results show that the redshift and blueshift of the impurity stark energy shift as the impurity position. ( 4 ) under the same external electric field, the impurity stark energy shift is obviously different with the different aspect ratio of the quantum well wires

    （ 3 ）當施主離子位於勢阱中不同位置時，零電場下量子阱線中的雜質態是關于施主離子位置中心對稱的簡並態，在外加電場作用下發生能級分裂，這種簡並不再存在;雜質的stark能移由於施主離子位置的不同表現為紅移或藍移。
  15. Abstract : we conduct a theoretical study on the properties of a bound polaron in a quantum well under an electric field using linear combination operator and unitary transformation methods, which are valid in the whole range of electron - lo phonon coupling. the changing relations between the ground - state energy of the bound polaron in the quantum well and the coulomb bound potential, the electric field strength, and the well width are derived. the numerical results show that the ground - state energy increases with the increase of the electric field strength and the coulomb bound potential and decreases as the well width increases

    文摘:採用線性組合算符及幺正變換方法研究了電場對量子阱弱耦合束縛極化子的性質的影響.推導出量子阱中束縛極化子的基態能量和庫侖束縛勢、電場和阱寬的變化關系.數值計算結果表明，基態能量因電場和庫侖束縛勢的不同而不同，隨電場和庫侖束縛勢的增大而增大，隨阱寬的增大而迅速減小
  16. Surface active agents - determination of inorganic sulfate content in anionic surface active agents - potentiometric lead selective electrode titration method

    表面活性劑.陰離子表面活性劑中無機硫酸鹽含量的測定.鉛電極電勢選擇滴定法
  17. The results indicate that the conductance and the resonant splitting are dependent on the structural dimension, the number of quantum dots and the strength of negative potential

    計算結果表明，電導圖譜及其共振峰的劈裂依賴于量子點的幾何尺寸、量子點的數目及量子點中勢的大小。
  18. ( 2 ) for a lens - shaped quantum dot, due to the asymmetry of the bound potential of in - plane and perpendicular to the plane, the electric ground state energies are related not only with the deviation distance but also with the deviation direction

    （ 2 ）對于透鏡型量子點，由於水平方向和垂直方向束縛勢不對稱，電子基態能不僅與雜質的偏離距離有關，還與雜質偏離方向有關。
  19. For different material of particle electrode, there are reverse trends of particle electrode potential with the variation of inorganic salt concentration and organic compound concentration

    對不同的粒子電極材料，粒子電極電位隨無機鹽含量和有機物含量變化的趨勢不同。
  20. Switch mode power supply, with its compact volume, small weight, high efficiency and good line regulation, has been widely applied in most of electronic fields

    開關電源（ switchmodepowersupply ）由於具有體積小、重量輕、效率高、輸出穩壓范圍寬等優勢，被應用於各種電子、電器設備領域。
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