過電勢 的英文怎麼說
中文拼音 [guòdiànshì]
過電勢
英文
overpotential-
A theoretical formula was applied to this process so that the open circuit voltage could predict the limit of deoxidization reaction
通過電池電動勢與時間關系的數學模型，得出外電路電壓與熔池中氧含量的關系，從而根據外電路電壓可以預測脫氧反應進行的程度。This paper theoretically analyses the armature current and magnetomotive force in ac exciter of brushless synchronous machine with rotating rectifier. under the normal or fault conditions of rotating rectifier, the mathematical expressions of the armature current, the m. m. f and induced electromotive force are approached
本文通過對旋轉整流器在正常與故障狀態下的交流勵磁機電樞電流和電樞電勢作了初步的理論分析，推導出旋轉整流器在正常與故障狀態下電樞電流、空間諧波合成磁勢及其感應電勢的數學表達式。In general, there is a measurable difference in potential between the two electrodes whether the cell is passing a current or not.
通常，無論電池有無電流流過，兩電極之間均具有可測量的電勢差。In chapter two, by adopting a semiclassical model, we get an analytic expression of potential distribution in a one - dimensional mesoscopic tunnel junction array by solving a set of linear equations
第二章採用半經典模型，通過求解一個線性方程組得到了一維介觀鏈中電勢分佈的解析表達式。The chairman jan. gesmar - larsen of dell ltd. that developed by the net - sell ever said that, the market rule of the elec - business time is not ever " big win small " but " quick win slow ". as far, the internet business develops quickly, every aspect of the social is impacted by the net tide. that first in and takes this field presents survival and development. the bank as the high - teck company will be impacked by the net business heavily, at the same time will fuse into and affect the net business and people ' s life. at the net business time, berween the different financial institution, between the financial institution and unfinacial institution, the limit is going to be faintaess, the amalgamation trend of the financial serve is building the foundation stone of " big business "
Gesmar - larsen曾經說過，電子商務時代的市場規則不再是「大吃小」而是「快勝慢」 。在網際網路經濟高速發展的今天，社會的各個方面和角落都在經受網路大潮的沖擊和洗禮，搶先進入和占領網路這一領域就代表著生存和發展，銀行作為知識密集型企業不可避免地受到網路經濟的強大沖擊，同時又以自身的金融特點融入並影響著網路經濟和人們的生活。網路經濟時代，不同金融機構之間、金融機構和非金融機構之間的界限趨于模糊，金融服務的融合趨勢正在構建「大金融」的基石。The other was to research new li - al solid solution alloy material and use it as anode in lithium battery. by the trace alloy component, aluminum, doping in lithium metal, it was hoped to improve the sei film stability of lithium / electrolyte interface and consequentially enhance the performances of lithium anode. meanwhile, different form the previously studied lial alloy that had very high content of aluminum, such alloy should not decrease the mass specific energy and electrochemical potential of lithium electrode
方法二:研究新型鋰鋁固溶體合金材料並將其應用於鋰二次電池中，通過微量合金成份鋁的摻雜提高鋰電極/電解質界面sei膜的穩定性，進而提高鋰負極性能;而該合金不會像以往高鋁含量的鋰鋁合金那樣降低鋰電極的質量比能量和電化學反應電勢。According to computer calculating, we can obtain the harmonics amplitude of the stator coil of excitation machine
通過計算，可得到勵磁繞組中感應電勢的各次諧波幅值。The influence of stray inductance in the module circuit to turn - off transient over voltage of igct has been investigated systematically, the surge current calculation has been done by simulation, and the short circuit failure once occurred in experiment has been analyzed by computer simulation, reproduced the breakthrough failure happened in experiment by means of simulation
充分利用計算機模擬的優勢，詳細分析了模塊電路雜散電感對igct關斷過電壓的影響，進行了短路浪涌電流計算，對試驗中發生的短路故障進行計算機模擬分析，重現了試驗中出現的誤觸發貫穿短路故障現象。It is such the exquisite coupling and the distribution change between each region during the binding and hydrolyzation that make it perform the high efficiency movement
我們認為kinesin通過各部分巧妙的配合，利用atp結合和水解的過程中電荷分佈的變化，充分利用電勢能做功從而實現其高效率的運動。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。Besides, scan rate and cycle period also affect the result ; co - deposition of dualistic oxide is a focus of research, as an element in the same group, ir is selected. deposition rate of composition is decreased by the adding of ir composition, and when the proportion of ir exceeded 50 %, composition procession can be ceased. but cooperation of ir and ru oxide can highly increase the specific capacitance of active material ; annealing treatment under a certain temperature can help to change the hydrate ru composition into mixture state ru oxide, accordingly increase the stabilization of active material
研究表明:電解液的配製過程中，氯化釕濃度、溶液ph值、陳化時間、溶液溫度對電鍍效果均有影響，其中溶液ph值是最主要的影響因素;在儀器的使用條件探索中，理論結合實驗確定了本電鍍液體系循環伏安電勢窗的理想范圍，並發現循環伏安掃描速度和掃描周期對電鍍結果也有較大影響;混合氧化物的共沉澱是目前研究熱點，在此選用與釕同一族的銥作為共沉澱元素，銥的加入會阻礙氧化物的沉積速度，銥的比例超過50 %會使沉積作用停止，但是二元氧化物的協同作用使沉積的活性物質比容量大大提高;一定溫度下退火后處理作用會使水合釕化物轉變成混合價態的氧化釕，從而提高活性物質的穩定性。Based on the theories of hybrid / mixed finite element method, the generalized energy functional including stress, mechanical displacement, electric displacement, electric field and electric potential is used, with the electric - potential relations and the constitutive equations of piezoelectric materials constrained, hybrid energy functional including mechanical displacement, electric potential and stress is gained. moreover, splitting in - plane components and transverse components, the mixed energy functional in which mechanical displacement, transverse stresses and electric potential as basic variables is derived. with the use of surface stress parameters of sub - elements, the continuity of transverse stress at interfaces between layers is obtained
在回顧雜交混合有限元理論的基礎上，從包括位移、應力、應變、電勢、電位移、電場強度六個未知量的廣義壓電材料能量泛函出發，通過約束電場強度?電勢關系、應力與應變及電場強度的關系，得到僅包括位移、電勢、應力三個未知量的雜交變分泛函，利用一般層合板的雜交混合變分原理，分離面內分量和橫向分量，導出以位移、橫向應力、電勢為未知量的壓電層合板的修正變分泛函，作為壓電層合板的雜交元列式的理論基礎。The work done in pushing 1c of charge through the conducting wire is called the potential, v, of the battery.
推動1庫侖電荷通過導線所作的功叫做電池的電勢V。To achieve accurate detection of surface potential, the measurement of the contact potential difference of the zno / si step was also carried out. polarization - related surface properties of ferroelectric thin films were investigated by kelvin probe force microscopy ( kpfm ), leading to the discovery of asymmetric charge writing on the surface of pb ( zr _ ( 0. 55 ) ti _ ( 0. 45 ) ) o _ 3 ( pzt ) thin film
為了優化儀器的檢測靈敏度和穩定性，選用氧化鋅薄膜上的zno / si臺階作為測試對象，檢測了zno / si的接觸電勢差;通過改變儀器系統參數，發現針尖-樣品距離和掃描速度對接觸電勢差的檢測結果影響顯著。To change the surface condition of electrode and the potential distribution of boundary layer through adsorption, thus affecting the electrode process ; b
通過吸附改變電極表面狀態及界面層中的電勢分佈，影響電極過程； bThe fact that tatb crystal in expands along c axle and could not be recovered in a heating circulation were explained from the distance between atoms as well as from miilliken population analysis. we also have explained that p - hmx crystal is easy to initiate decompose and detonate but tatb is very stable through the research of electrostatic potential map of electric charge
分析原子間距和m lliken集居，解釋了tatb晶體沿c軸膨脹以及受熱循環后長大的各向異性和不可復原性等實驗現象；還通過對點電荷靜電勢的研究，闡明了- hmx晶體易於在分子間相鄰硝基處引發分解和起爆，而tatb則很穩定等實驗事實。In the case that there is only one island that contains an excess electron, we can get the single charge soliton solution of potential distribution in a finite array from the analytic expression we have got. and we find that in the limit of the junction number our result will naturally reduce to the result in the infinite array approximation
當結鏈中只有一個島上有剩餘電子時，由所得的解析表達式可以得到有限長鏈中電勢分佈的單電荷孤子解，並發現當結的數目趨于無窮大時，這個解將自然過渡到無限長鏈近似下的結果。The main research aspects are as follows : the method of ac transport losses measurement in ac applied magnetic field was investigated. upon the analysis of ac loss measurement, a method to measure ac transport losses in ac applied field was proposed by use of double " 8 " shape coils. a programme controlled system was set up to measure ac losses of hts tapes and coils, which can ensure the experiment data needed by theoretical analysis and verification
主要包括：在實驗方面，探討了交流背景磁場下高溫超導帶材的交流傳輸損耗的測量問題，通過對交流損耗測量的理論分析，提出了採用雙「 8 」字形電勢引線測量交流背景磁場下高溫超導帶材交流傳輸損耗的方法；建立了超導帶材短樣及線圈交流損耗的電測量系統；從而為交流損耗的研究提供實驗數據與理論檢驗標準。Then one of the methods of rotor position detection - bemf zero crossing point detection is explained in detail. in succession, the chapter dissertates the method of measuring phase voltage and supply voltage, and analyses the error of rotor position using this method
對轉子位置檢測方法中的反電勢過零點法作了比較詳細的介紹，討論了反電勢法中相電壓和端電壓的檢測方法，並分析了利用該方法時而產生的轉子位置檢測誤差。Circuit a circuit is a path for an electric current across a potential ( voltage )
電路電路是電流通過電勢（電壓）的路徑。分享友人