結點電位法 的英文怎麼說

中文拼音 [jiēdiǎndiànwèifǎ]
結點電位法 英文
node voltage analysis
  • 結 : 結動詞（長出果實或種子） bear （fruit）; form （seed）
  • 點 : Ⅰ名詞1 （液體的小滴） drop （of liquid） 2 （細小的痕跡） spot; dot; speck 3 （漢字的筆畫「、」）...
  • 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...
  • 位 : Ⅰ名詞1 （所在或所佔的地方） place; location 2 （職位; 地位） position; post; status 3 （特指皇帝...
  • 法 : Ⅰ名詞1 （由國家制定或認可的行為規則的總稱） law 2 （方法; 方式） way; method; mode; means 3 （標...
  1. Second, the population genetic structure and genetic diversity of e. mollis were studied by using allozyme eletrophoresis and the electrophoretic data for 6 loci from 3 populations being xiangning, yicheng and pinglu populations in shanxi were got. the level of polymorphism was relatively higher than that of the insect - pollinated outcrossing species ( he = 0. 375 )

    用等位酶電泳法和biosys - 2軟體對山西翅果油樹種群的遺傳結構和遺傳多樣性進行了研究，通過對3個種群的6個等位酶位點的電泳分析，結果表明： 5個位點為多態位點， 1個單態位點。
  2. Fault location techniques are used to pinpoint location of the fault on a tra - nsmission line. transmission line faults must be located accurately to allow maintena - nce crew to arrive at the scene and repair the faulted section as soon as possible, which can relief the burdens of patrol personnel and reduce the revenue losses due to power outage. the accurate fault location alogrithms play an important role in power system safety, economy and reliability. in this paper, diversified fault location algorithms are summarized. according to the principles of algorithms, they can be classified into two categories : impedence based algorithm and traveling wave based algorithm. based on the analysis and comparission of each algorithm, the corresponding merits and app - lication limitations are presented

    精確的故障定位為現場巡線工作人員及時提供準確、可靠的信息，減輕人工巡線的負擔，同時加快線路的恢復供電，減少因停電造成的綜合經濟損失，為提高電力系統運行的安全性、經濟性和可靠性發揮重要的作用。本文總結了現有的各種測距方法，根據測距的原理將其分為阻抗法和行波法兩大類，對各種演算法的優缺點及適用范圍進行了分析，在此基礎上提出了一種組合的測距方案，並對演算法進行了模擬分析。
  3. Finally, the method of estimating power customer emission level based on binary linear regression is put forward, which make it a condition that harmonic emission is steady at the point of common coupling. combined with power system thevenin equivalent and customer norton equivalent, according to the principle of least squares method, the voltage that a customer ' s harmonic current begets at the point of common coupling can be estimated in the light of the plural correlation of network parameters

    最後，提出了基於二元線性回歸的用戶諧波發射水平估計方法，該方法在假設公共聯接點諧波發射穩定的情況下，結合系統側戴維南等值與用戶側諾頓等值的電路圖，按照最小二乘法原理，利用電網各參數的復數關系推導關于系統側諧波阻抗的二元線性回歸方程，並根據諧波阻抗的估計值求取用戶諧波電流在公共聯四川大學碩士學位論文（ 2003 ）接點產生的電壓降。
  4. The dissertation is organized as follow : first, the characteristics of srm and its control system ' s development are introduced. previously major methods used to implement non - position sensor detection and the significance of making search for this direction is generated. and the configuration and fundamental operating principle of srm are analyzed ; some study of linear model and nonlinear model with phase coil as fundamental parameter are presented and sr ' s linear model and nonlinear model are set up

    本文就以上兩個問題進行了深入研究，首先介紹了sr電機及其控制系統的發展歷程，研究無位置傳感器srd的意義和總結已有的無位置傳感器檢測方法，並且通過分析sr電機的結構和運行原理，研究sr電機繞組的線性電感模型和非線性電感模型，建立了電機的線性和非線性數學模型，重點研究sr電機的非線性模型，為sr電機運行與控制特性的研究和模擬研究奠定了理論基礎。
  5. An algorithm based on the inner structural feature of the 8 - bit single chip microprocessor is presented to perform the space vector modulation, it is high efficiency in voltage - utilizing, low harmonic losses, fast in calculation speed, simple in over - modulation method, high ratio of capability to price

    介紹一種用8位專用單片機內部結構特徵而設計的空間矢量調制演算法，不但具有電壓利用率高、諧波損耗小等優點，還具有計算速度快、過調制處理方法簡潔、性能價格比高等優點。
  6. Abstract : the polymorphism of angiotensinogen gene at position 174 was studied in 90 cases of essential hypertension patients and 109 controls by pcr, restriction enzyme analysis and electrophoresis methods. the results showed the distribution of genetypes in hypertension group was significantly different from that of controls group. this suggested there is a correlation between the variant of agt174 and hypertension

    摘要本文採用pcr 、限制性酶切和電泳分型等方法，分別對90例原發性高血壓患者和109例正常人血管緊張素原基因多態位點agt174進行了檢測，結果表明，高血壓組中三種基因型的分佈與對照組顯著不同，提高該位點變異與原發性高血壓的發生相關。
  7. According to the present status of studying the solar flare using gps, a new algorithm of processing gps data studying the solar flare is brought forward : after the instrumental bias has been determined, with the data of dual - frequency gps code and phase and navigation message, the vtec at the satellite ' s epp can be worked out

    根據現在研究太陽耀斑的實際情況，提出了利用gps研究太陽耀斑的數據處理方法：利用雙頻觀測值確定出儀器偏差后，再利用碼和相位觀測值，結合導航電文就可以求出電離層交叉點的沿天頂方向上的電子總量vtec值。
  8. In order to make the sensitivity of 2 - demension accelerometer along the two main arbors almost identical, symmetric four - beam structure that embeds a double - sides interdigitated differential capacitive with puckered beam in two directions was used as sensitive component. in addition, the differential capacitive accelerometer fabricated by bulky silicon micromechanical technique has high sensitivity, wide measurement scope, less nonlinear error, and simple converting circuit. then, the structure parameters of the sensitive component were calculated and stimulated, which results in a set of the optimized structure design parameters, main fabrication procedure and several key fabrication technology

    為使二維振動傳感器在兩主軸方向的靈敏度大致相同，敏感元件採用高度對稱的四梁結構，其中每個軸向上均採用帶折疊梁的雙側叉指電容結構，採用體硅微機械工藝製作的高深寬比叉指電容式敏感元件，具有高靈敏度、寬量程、非線性誤差小、外圍電路簡單等優點;對設計的敏感元件結構參數進行了計算，並利用有限元法進行了模擬分析，根據模擬結果得出了優化參數;在確定敏感結構的基礎上，研究了敏感元件採用體硅微機械加工工藝製作的工藝流程和關鍵工藝技術;對敏感晶元內部的c - v介面電路進行了原理設計與分析，利用差動測量技術得到由振動引起的微小電容變化量，經c - v介面電路進行相位調制處理，然後通過解調輸出與加速度成正比的電壓信號。
  9. Firstly, the circumstances of focimeter, the working principle of automatic focimeter, the mcu arm and the picture sensor are introduced in this paper. and then based on the optical principle of the automatic focimeter, the research on the optical arithmetic of lens ’ parameters and the arithmetic on the picture point are presented. and after that, the design of the whole system, the design of the optical system, the design of the mechanical system and the design of the electrical system are discussed. and then the design of the hardware system and the design of the software system are emphatically discussed

    本文首先介紹了焦度計的概況、自動焦度計的工作原理、 arm單片機及圖像傳感器;然後結合自動焦度計的工作原理，對焦度計中一些光學參數的演算法以及中心像點的位置檢測演算法進行了研究和討論;接著介紹了總體方案的設計、光路系統的設計、機械繫統的設計以及電氣系統的設計;接下來重點討論了硬體和軟體的設計。
  10. The primary aim of the single chip microcomputer circuit of this project is data collecting, it applied the invention monopoly of professor zhang guanghui and professor peng donglin of chongqing university, make use of the high frequency inserted pulse, and join together the software to constitute subsidiary calibration distributed on equal time, complete the task of on - line subdivision in the dynamic measure process, finally up pass the data to pc, pc handle it and get examination result

    下位機是硬體集成電路，利用重慶大學張光輝教授、彭東林教授的發明專利「計算機對脈沖信號的細分與辨向新方法」 ，附加頻率極高的外部插入脈沖，結合軟體構成按時間均勻分度的輔助標尺，實現動態測量過程中采樣點的實時細分，最終完成數據採集任務；上位機主要是軟體部分，利用pc機接收下位機的採集數據並進行分析處理，得出檢測結果。
  11. Secondly the detection precision is only related to the synchronization phase but not to the amplitude of the mainline voltage because that it uses the optimized pulses synchronous with the mainline voltage as modulation signals. thirdly it decreases the requirement of the input low pass filter and eliminates the error resulting from the direct component and even harmonics of load current. the most significant merit is that it can eliminate the effect of a few low order odd harmonics and the detecting circuit is easy to be implemented

    模擬和實驗結果表明該方法的主要優點有：不需使用乘法器進行信號調制，調制信號採用與電網電壓同步的優化特定脈沖，其檢測精度只與同步相位有關，而與電網電壓幅值無關；降低了對輸入低通濾波器的通頻帶要求，直流和偶次諧波分量對檢測精度沒有影響；突出的優點是可以消除有限個低奇次諧波對檢測結果的影響。
  12. Innovation of the aero maintenance system based on augmented reality ( ar ) technology and eye tracking technology, which can give real - time instruction for maintenance, is vital for enhancing the accuracy of maintenance and reducing the cost of maintenance. in the paper, the study work include 3 sections, as following : firstly, deducing 3d registration algorithm based on markers, depicting the display and 3d display technologies of artificial matters, and realizing 3d registration function specifically ; secondly, establishing an eye - movement measurement system based on the infrared television method, making use of the thoughts of ranks superimposition to withdraw the pupil center coordinates, and giving the thaught of recombining the position relation of purkinje spot to determine the eye sight direction primarily ; finally, describing the basic theory of augmented reality maintenance guiding system in detail, and introducing the software function and hardware frame, which will provide the foundation for the further study of this system

    本文的研究工作主要包括以下三個部分:首先，改進了有標志點的三維注冊演算法，並具體實現了三維注冊功能，最後試驗驗證了注冊演算法的正確性，為將來基於無標志點的發動機維修誘導系統的研究提供基礎和實踐經驗;其次，描述了基於紅外電視法的視線跟蹤系統的基本原理，對眼動信號處理技術做了初步的研究，即利用了行、列疊加的思想提取了瞳孔中心坐標和普爾欽（ purkinje ）斑點的坐標，闡述了結合瞳孔中心與普爾欽（ purkinje ）斑點的位置關系進行初步判定視線方向的方法;最後，詳細描述了所構建的增強現實維修誘導系統的基本原理、軟硬體框架，為今後維修誘導系統的深入研製提供基礎。
  13. In this paper, by explored geo - physico - chemical prospecting method for looking for oil in prior prospect, the authors summarize a suit of prospective technique and program, which is valid to oil - geology trait of zhidan area and composed of ; oil gas geo - chemical prospect ( acid degradation of hydrocarbon, absorbed - fluorescent spectrum, ultraviolet radiation spectrum, methane carbon - isotope ) non seismic detection in favorable explorative area which confirmed by chemical prospect ( matural potential, gamma energy spectrum. accurately magnetic analysis ) resistively prospecting in anomalous area which confirmed by physicalprospect successful general evaluation of geo - physicochemical prospect

    通過勘探早期地質物化探綜合找油方法實驗，筆者總結了一套適合志丹探區石油地質特點的勘探方法組合和勘探程序：油氣地球化學勘探（酸解烴、吸附烴、熒光光譜、紫外光譜、甲烷碳同位素、蝕變碳酸巖）化探圈定的有利勘探區進行非地震物探（自然電位、伽瑪能譜、高精度磁測、土壤測氧）物探圈定的異常區進行電阻率測深勘探地質物化探成果綜合評價。
  14. In order to make clear the effects of fe3o4 on composite film structure, the thickness, porosity, average and maximum pore size, pore size distribution of different films are measured. surface morphology is studied by scan electronics microscope ( sem ). the characterizing results of film micro - morphology showed that pore structure of fe3o4 / pvdf composite film were better than those of pvdf host film

    為進一步分析fe3o4的原位生成對復合膜結構的影響，測定了pvdf基膜和復合膜的膜厚；採用干濕膜重法測試了膜樣品的孔隙率；採用泡點壓力法流體滲透法相結合，對比測試了膜樣品的最大孔徑、孔徑分佈及平均孔徑；通過掃描電子顯微鏡（ sem ）照片分析，對比研究了pvdf基體膜和fe3o4 / pvdf復合膜的表面形貌。
  15. Based on some discussions on the mathematic model set up for the cathodic protection potential field, a two - dimensional boundary element method ( bem ) is developed, and by using which, a study on the shielding effect resulted from some typical inner structures such as the reinforcing elements and the partition walls with man holes on distribution of potential and current density in the cathodic protection is performed. the investigated parameters which affect the shielding effect in the calculating model include : the height and thickness of the reinforcing elements, the distance between the anode and the reinforcing elements, and the diameter of man hole on the partition walls, and so on

    本文在討論了陰極保護電位場問題的數學模型的基礎上，以二維邊界元法對陰極保護問題中的電位及電流密度分佈進行了模擬計算，重點對船舶壓載艙中的典型結構如加強筋、人孔等在陰極保護中所產生的屏蔽效應進行了分析和研究，通過對不同高度、厚度的擋板及不同孔徑的帶孔板所產生的屏蔽效應進行模擬計算，首次得到了一些對實際工程設計具有重要參考意義的見解。
  16. Regard how to structure the control system of sensorless bldcm with dsp - tms320f240 as the centre in this paper, the detailed argumentation course of the motor startup, bemf terminal voltage measurement and control strategy is given out, give and pay concrete details for the software and hardware realization and experimental result. in order to treat the bldcm control system with dsp clearly, the full paper divides into six chapters altogether : chapter one, introduceing the development course, the structure characteristic and operation principle, etc. of bldcm in the introduction ; chapter two, directed against the startup issue of bldcm, the chapter give and publish the rotor measure pulse orients technology for motor startup in detail ; chapter three, proceed with mathematics model of the bldcm, expounding the control schemes ; chapter four, two important devices introducing : dsp ( 240 tms320f ) and power invertor control chip ( ir2131s ) ; chapter five, give and publish the detail of hardwares of control system ; chapter six, by ccs ide of ti, realize the control schemes in the front chapters with software, offere the procedure flow chart of main subroutine and some key place of programming, the experiment result in addition

    全文共分六章：第一章、緒論中介紹了bldcm的發展歷程、電機本身的結構特點和工作原理等；第二章、針對五位置傳感器bldcm的起動問題，文中詳細給出了檢測脈沖轉子定位起動技術；第三章、從電機的數學模型入手，詳細論述了反電動勢端電壓法和系統的控制策略；第四章、介紹了硬體實現中的兩個重要器件： dsp （ tms320f240 ）和功率管逆變器控制晶元（ ir2131s ） ；第五章、詳細給出了控制系統的硬體實現細節；第六章、利用ti提供的ccs集成開發環境，將前面章節的控制方案用軟體加以實現，給出了主要部分的程序流程圖和一些編程要點以及實驗結果。
  17. This paper has reviewed the resources of ceo2 in our country, the markets and the condition of application. the advantages and drawbacks of the important preparation methods were reviewed. it puts emphasis on the reaction mechanism of precipitation method to nanoparticals and analyzes redox potential between ce3 + and ce4 +, puts forward a new technics named " a two - stage precipitation process " to succeed in obtaining nanocrystalline powers of cerium oxide

    本文簡要介紹了我國ceo _ 2的資源和市場以及國內外納米ceo _ 2的應用現狀：分析對比了納米ceo _ 2制備研究現狀；重點討論了沉澱法制備納米粉體的理論基礎：結合鈰（ ）離子、鈰（ ）離子的氧化?還原電位分析，提出以兩步沉澱法來制備納米二氧化鈰。
  18. Node voltage analysis

    結點電位法
  19. The fourth chapter introduces the circuit design method of can - bus node, as well as the technique of structuring distributing - type can - bus measuring and controlling network, explains thoroughly how to realize can calling and broadcasting communication under pelican mode, and discusses detailedly the computational technique of bit - timing parameter of can controller sja1000. the latter part of this chapter points out several important problems confronted and solved by the author in the course of designing can - bus communication system

    第四章介紹了can總線節點電路的設計方法和基於can總線的分散式測控網路的組建方法，詳細論述了增強模式下can總線分散式測控網路實現點名和廣播通信的原理與方法，深入探討了can控制器sja1000位定時參數的計算方法，總結了作者在設計can總線通信系統的過程中遇到和解決的幾個關鍵問題。
  20. The result of simulation and test verified that this algorithm is simple to be carried out, and harmonics in output waveform are small, and neutral point voltage can be controlled very well, and narrow pulse problem is solved as well

    模擬和實驗結果表明，該方法實現簡單，輸出波形諧波含量小，中點電位得到很好的控制，並較好地解決了窄脈沖問題。
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