直接阻抗 的英文怎麼說

中文拼音 [zhíjiēkàng]
直接阻抗 英文
direct impedance
  • : Ⅰ形容詞1 (成直線的; 硬挺的) straight; stiff 2 (跟地面垂直的; 從上到下的; 從前到后的) erect; v...
  • : Ⅰ動詞1 (靠近;接觸) come into contact with; come close to 2 (連接; 使連接) connect; join; put ...
  • : 動詞(阻擋; 阻礙) block; hinder; impede; obstruct
  • : Ⅰ動詞1 (抵抗; 抵擋) resist; combat; fight 2 (拒絕; 抗拒) refuse; defy 3 (對等) contend with...
  • 直接 : direct; immediate
  • 阻抗 : [電學] impedance
  1. A general graphical user interface based on object - oriented technique, database and visualization in scientific computing has been conducted. we can draw electrical components of the distribution network and fill the components data easily. background programs analyze topology automatically and constitute node admittance matrix, node impedance matrix

    它使用圖形元件繪成系統線圖,在屏幕上輸入元件參數,后臺程序自動進行網路拓撲分析,然後基於稀疏技術,利用支路掃描法形成節點導納陣,連續回代法形成節點陣。
  2. In the models, the iron core nonlinearly of the traction transformer and the magnetic hysteresis effect without the b - h curve are considered. having tested by digital simulation, the winding parameter has not changed in the state of external fault or magnetizing inrush etc. but the winding parameter has obviously changed in state of inter fault or inter - turn fault. ( 3 ) the rules three phases converted to two phases of traction transformer in electric railways are developed in this paper

    ( 3 )利用牽引變壓器磁鏈平衡方程,建立了基於系統辨識理論的雙繞組單相線牽引變壓器、匹配平衡牽引變壓器及scott (斯科特)線牽引變壓器的「灰箱」模型,該模型考慮了牽引變壓器鐵芯非線性和磁滯效應,但又不反映在模型中,並且無需鐵芯的b - h曲線數據。
  3. The elements of the reduced - jacobian matrix are functions of some parameters of the system. for example, effective short ratio, power base ratio, coupling impedance and load flow of the system. for single - infeed hvdc system with a parallel ac line, computer simulations using power system analysis software package ( psasp ) were performed

    用一種簡單的方法可以求得降階雅可比矩陣,由於降階雅可比矩陣的元素都是交流混合系統中一些參數的代數函數,如有效短路比、功率基準比、連和系統潮流等,因此,矩陣的特徵值也與這些參數相關。
  4. Electrical safety in low voltage distribution systems up to 1000 v a. c. and 1500 v d. c. equipment for testing, measuring or monitoring of protective measures - resistance of earth connection and equipotential bonding

    不超過交流1000v和流1500v的低壓配電系統電氣安全性.防護測試測量或監測設備.地和等勢屏蔽
  5. In this paper, a method assessing harmonic impedance by synchronously layered distortion waves is proposed, which is based on the " fluctuations method " - a simple and effective means. however the method is based on the fourier transform, which can just precisely analyze the signals whose cycle is integer times as broad as that of fundamental wave. with sampling windows widening, the variations of distorted signals in a fundamental period are weakened

    本文是以一種被廣泛採用的非干預式諧波估計方法? ? 「波動量」法,的基礎上,針對現有方法以的fourier變換為分析工具,只能對基波周期的整數倍窗口采樣信號進行分析,畸變信號在一個基波周期內的變化隨采樣窗口增大而被弱化,並且,諧波次數越高,解析度就越低,大大限制了諧波估計的準確性的提高。
  6. The methods were realized directly inversion of the possion ' s ratio from cdp gather and gas - bearing identify. by applied the late theory of avo technology, after inputting the p wave section and s wave section, the p wave and s wave impedance were obtained by applying simulate anneal inversion and used the log as a constrain condition, eventually, obtain the elastic parameter u and x by p and s impedance. then, the gas - bearing will be identified by u and x. by applying this method, the avo combination inversion of prestack and post were realized

    利用上述的反演方法實現了泊松比從道集的反演,利用加權疊加技術實現了含油氣的識別,並利用當今avo研究的最新成果,以加權疊加技術分離出的p波和s波剖面作為輸入,在測井的約束下,採用模擬退火方法分別進行p波和s波波反演,通過p波和s波波來求取彈性參數和,再通過和的聯合解釋來進行含油氣的判別,實現了avo的疊前疊后的聯合反演。
  7. Applying relative arithmetic to all kinds of faults and calculating off - line, we can master time - distance relation chart for all kinds of faults. computation indicates : when transmission lines occur faults, the data window of protection algorithm consisting of prefault and postfault data at the same time has important significance. the following methods are useful to achieve the inverse time characteristic : calculating impedance by using flourier in a full cycle, calculating work voltage by using fault component, calculating the torque created by a phase comparator or a magnitude comparator

    實際的計算表明:輸電線路發生故障后,用故障前後的數據同時充滿保護演算法的數據窗,對于快速切除近區故障具有很重要的意義;同時利用故障前後的數據,下述方法可以比較好地實現距離保護的反時限特性:用全周傅里葉演算法進行計算;採用工頻變化量繼電器進行工作電壓的計算;採用轉矩的思想進行轉矩的計算。
  8. By calculating rcs of arbitrary shaped conducting objects and the input admittance of a wire antenna on the arbitrary shaped conducting platform, it is shown that the method of impedance matrix interpolation can greatly reduce the computation time compared with the traditional moment method

    該方法僅對幾個插值點頻率進行計算,便可通過插值快速生成其他頻率點上的矩陣,相比于對每一個新頻率點重新計算矩陣,極大地減少了計算時間。
  9. The results show that mno which not be modified can not be use as electrode active materials because of its poor electrochemical activity. meanwhile, the rechargeabilify of mno modified by bi and pb is improved. bismuth could prolong the second electron equivalent discharge and lead could improve the first electron equivalent discharge performance

    I44 )對熱分解產物進行了充放電,循環伏安,恆電流極化, tafe曲線分析,交流分析,得出未摻雜的mno作為電極活性材料,其電化學活性很差,但通過摻bi , ph進行改性,提高了其可充性, 1的影響主要在於第二電子放電, ph則可以延長第一電于放電
  10. Direct impedance blood flow recorder

    血流圖儀
  11. Taking the bending stiffness, cable sag and cable inclination into consideration, the space vibration control of the cables using the visco - elastic dampers in cable - stayed bridges is investigated by joining the center difference method and the state space strategy. both the maximum modal damping ration and the optimal damper size are obtained, then the practical suggestions are proposed for the design of the dampers. the space nonlinear vibration equations of the cable - damper system are derived, and a new hybrid method for solving the cable - damper system is presented by combing the newmark method and pseudo - force technology

    綜合考慮了拉索彎剛度、垂度的影響,研究了粘彈性尼器對斜拉橋拉索的空間振動控制,聯合中心差分方法及狀態空間法,得出了拉索麵內、外振動各階模態可能達到的最大尼比及相應的最優尼器系數,並對斜拉橋拉索的尼器設計提出了參考建議:考慮拉索彎剛度、垂度及幾何非線性,導出了索-尼器系統的空間振動非線性方程組,結合newmark方法及偽力( pseudo - force )方法,創新地提出了求解非線性方程組的雜交方法,根據拉索-尼器系統的尼特性,在各種荷載作用下,對索-尼器系統的非線性瞬態振動響應進行了研究,從系統響應的角度更加地驗證了尼器的控制效果。
  12. In the design and debugging process we found that two different caps with parallel connection may make the amplifier instability. with the analyses of the nonideal cap molding we found that the response curve of two different caps with parallel connection has a saltation whose impedance is infinity and at this pot the amplifier is easy to oscillate. than some suggestion of the use of cap in amplifier design is presented

    在放大器的設計、調試過程中發現兩個不同容值的電容並聯會帶來電路的潛在不穩定,對實際電容,即帶有寄生電感和寄生電的電容,建模、分析后發現,不同容值的電容並聯其響應曲線會有一個值為無窮大的突變點,該突變點可能會引起電路的自激。
  13. 1. polybenzidine ( pbz ) was polymerized by using chemical method in organic system and with ( nh4 ) _ 2s _ 2o _ 8 as oxidant, hclo4 as dopant. the electrochemical behaviors of pbz electrode were studied by cyclic voltammetry, charge - discharge test and electrochemical impedance techniques

    1 .用化學氧化法在乙腈溶液中,以高氯酸為摻雜劑制備了聚聯苯胺,用循環伏安,交流流充放電對其電容行為進行了研究,聚聯苯胺電極比電容為150f / g 。
  14. In order to improve the circuit ' s input impedance, which is affected by insulating resistance of electrode leading wire, terminals and printed circuit board, electrode is connected to the meter through insulating wire of high impedance which is directly welded in the printed circuit board with insulating ring. the deviation of electrode is corrected by software and the algorithm is given

    使用高絕緣線連電極,並將高絕緣線焊在加有絕緣環的印刷線路板上,從而消除電極引線、線端子和印刷線路板漏電對放大電路輸入的影響;軟體校正電極偏差,並給出校準演算法。
  15. The current in the dac ’ s output can drive the load, and the structure can save a buffer consisted of operational amplifier, so the structure can achieve high speed with no close - loop and feedback in this circuit

    該10位分段式電流舵型數模轉換器的輸出端可用電流輸出來驅動負載,省去運算放大器構成的輸出緩沖,整個電路中沒有形成閉環和反饋,因此這種電路結構可以達到很高的速度。
  16. It utilizes zero impedance branch characteristic, combining structure - transform and structure - static short - circuit current calculation method to calculate the short - circuit current directly through the electrical equipment when short - circuit fault takes place at the two sides of the electrical equipment, and settles the problems that the traditional method cannot directly figure out the short - circuit current

    該方法利用零支路特點,結合定結構和變結構短路電流計算方法,能夠求出在電氣設備兩側分別發生短路時,通過電氣設備(如斷路器)的短路電流,從而合理地解決了傳統的故障分析方法不能求出流過設備的短路電流的問題。
  17. According to zero sequence voltage distribution from system zero sequence impedance to shunt reactor zero sequence in zero sequence circuit, the zero sequence voltage at the terminal of shunt reactor and the zero sequence compensating voltage at neutral are compared in the scheme

    即根據零序網路中零序電壓在系統零序和電器零序上的分佈情況,通過比較電器首端零序電壓與補償到電器末端中性點的零序補償電壓的幅值大小,來判別電器匝間故障。
  18. Enumeration of presumptive escherichia coli in live shellfish - indirect technique using direct impedance measurement

    活貝類中大腸桿菌的推定計數.使用直接阻抗測量的間技術
  19. " utilization of multi - attribute transformation in predicting well logging parameter " has transcended many traditional methods of reservoir research in many aspects, and possessing many outstanding technology superiority, which are showed below : ( 1 ) it takes new technology thought - " date - driven law " as the guidance, and inherits and synthesizes forefathers successful technology formed in many years. ( 2 ) ' it directly calculates the well logging parameter by way of the multiple attribute transformation, rather than by way of the sound impedance, like the porosity, while the way before is to make further estimates of the sound impedance from the seismic inversion result so that the result suffers the influence of many factors. ( 3 ) the usefulness of the seismic attribute is drawn from the seismic data, rather than the traditional poststack seismic data after nonlinear a transformation

    「 ;利用多屬性變換預測測井參數」在很多方面超出了傳統意義上的儲層研究方法,具有突出的技術優勢,表現在: ( 1 )它以新的技術思想? ? 「數據驅動法」為指導,繼承並綜合利用了前人多年來形成的成功技術: ( 2 )它是通過多屬性變換預測測井參數,而不是通過聲波,如空隙度,以往的做法是從地震反演結果中的聲波做進一步的模擬估算,其結果受到諸多因素的影響; ( 3 )所用到地震屬性是從地震數據中提取的,而不是傳統的迭后地震數據本身。
  20. The ability to target psma on blood essels would proide a way to directly attack a tumor ' s blood supply without affecting normal blood essels

    因此特異針對血管的psma原可以在腫瘤治療時斷腫瘤的血液供應,而不影響正常血管的功能。
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