析出電勢 的英文怎麼說
中文拼音 [xīchūdiànshì]
析出電勢
英文
evolution or deposition potential-
Based on my working experience in beijing trs information technology limited and the particularities and complexity of e - government requirement and purchasing process are studied by using modern marketing theories and methods systematically in the beginning. and the actual status and characteristic of the e - government software market in china was analyzed scientifically through comparing approach of products competing dominance and market share, increscent sales ratio. then competition status of trs e - government system was evaluated by porter five forces model and a conclusion is that trs lacks of competitions power
本文結合筆者的實際工作，根據政府部門對電子政務軟體產品技術和服務要求的特殊性和其采購過程的復雜性，系統運用了現代市場營銷理論的基本原理和方法，首先分析了電子政務軟體市場發展狀況和特點，運用產品競爭優勢比較、市場佔有率和銷售增長率比較等方法，根據波特競爭力模型對trs電子政務系統的行業市場競爭情況進行了評價，得出了trs電子政務系統市場競爭力不足的基本結論。Based on the thorough investigation of the post - regulation and efficiency in multiple output switching - mode power supplies, an optimal combination topology for multiple output switching converter is presented in this thesis, which is consisted of forward converter with active clamp ( fac ), synchronous rectification ( sr ) techniques and magnetic amplifier technique ( magamp )
本文通過研究分析近年來多路輸出開關電源輔助輸出電壓調節和提高效率的方案，面對開關電源朝著輸出低電壓大電流方向發展的趨勢，提出多路輸出開關電源新的拓撲優化組合模式? ?有源鉗位正激變換器、同步整流技術、磁放大器。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 this paper, we at fist analyse the distribution of magnetic field in the permanent magnet synchronous motor which rate power is 800w and calculate parameters of this motor on the basis of the traditional approach to ca1culating armature reactance, we put forward a new method which is based on the iteration of the electromotive force equation, and name it after " electromotive oprce method "
本論文運用有限元方法分析一臺800w稀土永磁同步電動機內部電磁場的分佈情況，計算出相應的電機參數。並在傳統的計算電樞反應電抗的基礎上提出了一種基於電勢平衡方程式的計算方法，本論文稱之為「電勢法」 。There is an urgent demand for both the public and the private sectors to understand the current situation, characteristics and trends of the outward direct investment made by the electronic information industry, so to implement necessary measures to enhance the outward direct investment. based on the case studies, this article analyses the motivations, investment modes as well as the location of the current direct investment made by the chinese electronic & information enterprises
本文用實證方法，對中國電子信息企業對外直接投資的動因、投資方式及投資區位進行了分析，並通過swot方法剖析了電子信息產業及電子信息企業目前對外直接投資的強勢、弱勢、機會和威脅，在此基礎上提出了增強電子信息產業對外直接投資的宏觀和微觀的建議。Several models of bonded dissimilar materials with interface edges are calculated. displacement, electrical potential, singular stress fields and singular electrical displacement fields near a singular point are deduced by the eigenfuntion expansion method based on the general solution of the spatial axisymmetric problem of the transversely isotropic piezoelectric media. a generally axisymmetric interface edge of bimaterials with arbitrary interface angle and joining angle is analyzed theoretically by using this method
在此基礎上，對具有任意界面角和結合角的橫觀各向同性雙壓電材料空間軸對稱界面端一般模型的軸對稱變形問題進行了理論分析，給出了該模型界面端的奇異性特徵方程以及界面端附近的位移場、電勢、奇異應力場和奇異電位移場。This text has a foothold to develop the trend in the research our country competition of the telecommunication industry and it. first this text introduced the basic concept of etc. of telecommunication industry network, the telecommunication industry business, analyzing the development stage of the economic characteristics, the telecommunication industry of the basic characteristic, the telecommunication industry of the telecommunication industry ; connect down to the telecommunication industry of present condition and existent problem carried on the point to discuss, and put forward 9 : 00 solution to these problems writer ; finally the writer points out the development target of the our country telecommunication industry and the competition trend of the development strategy and our country the telecommunication industries. the writer expects this text ability to the development of the our country telecommunication industry the competition contain certain reference value
本文立足於研究我國電信產業的競爭及其發展趨勢。首先本文介紹了電信產業網路、電信產業業務等基本概念，分析了電信產業的基本特徵、電信產業的經濟特點、電信產業的發展階段;接下來對電信產業的現狀和存在的問題進行了重點論述，並針對這些問題筆者提出了九點解決方案;最後筆者指出我國電信產業的發展目標和發展策略及我國電信產業的競爭趨勢。筆者期望本文能對我國電信產業的發展競爭有一定的參考價值。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。Starting from the development tendency of the electricity controlling technology in modem industry, this paper analysis its problem on teaching content and puts forward the reform thought of curriculum teaching
摘要從現代工業電氣控制技術的發展趨勢出發，剖析了電氣控制技術課程在教學內容方面存在的嚴重滯后等問題，提出了課程教學改革的思路。It is showed that the torque ripple is not only connected with the phase currents, but also with the other factors, such as the instantaneous phase emf ' s in the case of commutation, the angle of commutation and the parameters of the windings
從一個新的角度分析了繞組換相引起轉矩波動的原因，指出換相轉矩波動不僅與電機繞組電流有關，還與換相時相繞組感生電勢瞬時值、換相位置角、繞組參數等因素有關。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。Abstract : based on the classical theory, the harmonic winding potential of the tooth harmonic brushless exciting generator have been calculated and analysed. the results tally with the data of no - load test very well. it was demonstrated the designing thread of harmonic winding is correct
文摘:從經典理論出發，對齒諧波無刷勵磁發電機的諧波繞組電勢進行了分析計算，其結果與空載實驗得出的數據完全吻合.說明諧波繞組的設計思路是正確的The main work can be summed up as follows : firstly, we studied the thermal - field properties of vcsels, and analyzed the influences of current spreading, material parameters and operating conditions on the temperature distributions. secondly, we began with the electrode voltage and calculated the equipotential s distributions, compared the distributions of voltages and current densities in different depths of vcsels, and then studied the influences of the oxide - confining region with different position or thickness, and the different sizes of the gain - guided aperture and emitting window on the distributions of the injected current density, carrier concentration and temperature in the active region. thirdly, we realized the coupling of electricity, optical and thermal - fields, worked out the threshold voltage, calculated the distributions of the injected current density, carrier concentration and temperature under different offset voltages, and analyzed the impacts of temperature profile and carrier density on the refractive index, fermi levels and optical - field
具體工作可以概括如下：首先，研究了vcsel的熱場特性，分析了電流擴展，材料參數和工作條件對于溫度分佈的影響；其次，從電極電壓入手，計算出激光器中的等勢線分佈，並對不同深度處的電壓和電流分佈進行比較，研究了高阻區的不同位置和不同厚度、限制層和出射窗口半徑的大小對電流密度、載流子濃度和溫度分佈的影響；再次，實現了電、光、熱耦合，求出了閾值電壓，計算了不同偏置電壓下的電流密度分佈、載流子濃度分佈和熱場分佈，分析了溫度和載流子濃度變化對折射率、費米能級和光場的影響；最後，給出了考慮n - dbr和雙氧化限制層時激光器中的等勢線分佈，分析了n - dbr和雙氧化限制層對vcsel電流密度、載流子濃度、溫度和光場分佈的影響。This thesis analyzes all kinds of throttle components, points out the advantage of adapting eev, and analyzes the start - up and the discharge characteristics of eev, and dynamic response of refrigeration systems when the opening degree of eev is changed, etc. eev is placed into a tumoff position while the unit starts up, and after being kept for a period of time it is placed into a bigger position, after some more time it is put into a basic control
本文對比分析了冷藏箱製冷系統各種節流元件的特點，指出電子膨脹閥應用的優勢，同時分析了電子膨脹閥的啟動特性、流量特性以及系統在閥開度變化時的動態響應。電子膨脹閥在啟動時應先使電子膨脹閥處于關閉位置，延時一段時間后，再將閥開至一個較大的位置，再延時一段時間后轉移到基本的控制。The main content of the thesis includes : analyzed the intension of the e - government, introduced the progress on theory and technology that the e - government is correlated with and deficiency during actual construction ; and then analyzed the technological system characteristic and application of web service in detail ; discussed concept, using mode and development trend of office gis - and office gis supported by web service, also analyzed the structuring of examine and approve of constructive land e - government system that probed into and proved because of web service on the basis of this ; the systematic application instance that the article appeared at last - the examine and approve of constructive land e - government system of jiangsu province
論文主要內容包括：分析了電子政務的內涵，介紹了電子政務相關的理論和技術以及在實際建設中的不足；詳細分析了webservice的技術體系特徵及其應用；討論了officegis的概念、應用模式以及發展趨勢? ? webservice支持下的officegis ；在此基礎上探討論證了基於web服務的建設用地審批電子政務系統的構建；最後文章給出了系統的應用實例? ?江蘇省建設用地審批電子政務系統。The essence of photocatalysis should be the conversion and storage of solar energy. the character of photocatalytic should be electron transformation. and the theory mode was raised hi this paper, the transformation of light - induced - electrons formed two
而後，又應用熱力學和電化學理論對該理論模型進行了詳細的分析，推導出公式（ 6一3一19 ） ，說明了光能一電勢能一化學能轉化的具體過程和關系。This dissertation presents several novel control techniques for the torque ripple minimization of pm bldcm. according to the different back - emf waveforms of bldcm, this dissertation gives a detailed analysis to the torque ripple due to trapezoidal emf, pseudo - sinusoidal emf, and general shape emf respectively, and from each one proposes a kind of control technique for torque ripple minimization
根據永磁無刷直流電動機反電勢波形的不同，對方波型無刷直流電動機的換相轉矩脈動，準正弦波（ pseudo - sinusoidalemf ）反電動勢無刷直流電動機以及任意波形反電動勢無刷直流電動機的電磁轉矩脈動，進行了詳細的分析，分別提出三種不同的控制策略，進行轉矩脈動抑制控制。While e - commeivx is sweeping ure world, it is a reasonable idea tliat e - commerce will ixxx nc lire main commercial model ii i tlx new century. i " " iislly ure developing inotivatioas of e - lximmeiu ' siicit as ix - isonali / alion ami convenieixr aieamly / ed in lire reras well as the influence lo ukiradilional material distiibnlion icsullal hum clianges of ideas aixi beliavior of ( jie consumer and enleipriscs
在電子商務席捲全球並有望成為新世紀主流商務形式的背景下，本文首先分析了電子商務發展的內在動因，如個性化、便捷等趨勢，以及消費者、企業的觀念、行為變化對傳統物流的影響，並由此得出為適應電子商務的發展傳統物流所存在的功能缺陷和面臨的挑戰。Combined with the researching and developing process of " the cbm system in fujian province ", the feasible scheme of the inter - faculty courses synthetic analysis ( namely intelligent management system of electric power equipment ' s condition ) are proposed to work out the module of intellectual ized diagnose and synthetic analysis to electric power equipment, which use the modern theory such as rough set theory, artificial neural net and genetic algorithm etc. emphasizing on the inter - faculty courses analysis, we analyzed the effect of this scheme based on " the instance collection of the limitation, and fault of main transformer in the fujian power system during recent years ", and then got a satisfying result. as the core of the cbm center of electric power equipment, the intelligent management system is the necessary measure to the cbm of equipment power system
本文介紹了狀態檢修的國內外發展趨勢和現狀，結合「福建省電力設備狀態檢修系統」項目研發過程，利用粗糙集理論、人工神經網路和遺傳演算法等現代理論，提出了跨專業綜合分析（即「電力設備狀態智能管理系統」 ）可行方案，編制電力設備智能綜合診斷分析模塊，並以「福建省電網近年來主變壓器缺陷或故障情況匯總表」為例，以跨專業分析為側重點，對本方案的效果進行計算和分析，結果令人滿意， 「電力設備狀態智能管理系統」作為「福建省電力設備狀態檢修中心」的核心，是電力設備狀態診斷不可缺少的手段。The motor ' s magnetic field is analyzed with finite element method ( fem ) by ansys software. the emf and electro - magnetic torque are calculated with path method base on the air gap magnetic flux density ( b )
運用有限元分析軟體ansys對電機內部磁場進行模擬分析，得出電機內部磁場磁密及磁場強度分佈情況，在此基礎上運用路徑法對電樞反電動勢、電磁轉矩等電磁參數進行了分析計算。分享友人