超前滯后 的英文怎麼說

中文拼音 [chāoqiánzhìhòu]
超前滯后 英文
lead-lag
  • 超 : Ⅰ動詞1 （越過; 高出） exceed; surpass; overtake 2 （在某個范圍以外; 不受限制） transcend; go beyo...
  • 前 : Ⅰ名詞1 （在正面的） front 2 （次序在先的） first; top 3 （過去的; 較早的） ago; before; preceding...
  • 滯 : Ⅰ動詞（使停滯; 使不流通） stagnate; block up Ⅱ形容詞（停滯; 不流通） sluggish; slow-moving; stagnant
  • 超前 : speed-up; outstrip; lead; leading; preact; prediction; [航海學] advance; advancing
  1. Lead lag circuit

    超前滯后電路
  2. When soil antecedent condition is dry and the initial rainfall intensity is high, peak surface runoff also considerably lag behind that of rainfall, because of the formation of temporary relative impermeable top layer ; b ) surface runoff is controlled primarily by infiltration - excess runoff mechanism under unsaturated condition ; the major fraction of surface runoff are dominated by saturated infiltration - excess runoff response, only a small fraction by return flow mechanism when soil is saturated ; c ) subsurface flow is dominated by saturated runoff mechanism, and the duration of subsurface post the rainfall end is dependent upon rather the soil properties than the rainfall characteristics ; d ) subsurface flow intensity in cultivated soil layer ( 0 ~ 20cm ) is high up to 35mm / h when rainfall intensity is up to 120mm / h, indicating the existing of macropores and pipe flow in cultivated layer

    2 ）耕作制下紫色土的產流主要機制是： 1 ）當雨前土壤含水量未達到飽和狀態時，表面產流起始時間有明顯滯后現象，這與紫色土的快吸水性和較多非毛管孔隙密切相關；當雨前土壤較乾燥，降雨初期雨強較大時，易形成臨時相對不透水表層，表面產流峰也有明顯滯后現象。 2 ）表面徑流的產流方式主要是超滲產流，當土壤達到飽和狀態后，有四川大學博士學位論文小部分回歸流發生，但主要是飽和超滲產流發生，因為紫色土的相對不透水層和其它透水障礙層不明顯。 3 ）壤中流主要是飽和產流，與降雨過程有明顯的滯后，而且雨停后的壤中流產流歷時與降雨特徵無關。
  3. 1 m 0. 5, the phase - shifted angle 6 is controlled in term of sine law which makes the magnitude of resonant voltage track a reference sine voltage, and the resonant voltage is rectified, filtered, inverted and then the better sine - voltage output is obtained, theoretical analysis and experimental results show that for the resistive load and inductive load, the switches of leading leg of the phase - shift - controlled circuit are always turned on at zvs, and ones of lagging leg are turned on at zvs ( < 0 ) or turned off at zcs ( ( > 0 ), moreover, all switches in the low - frequency inverter are always turned on and off at zvs, the measured circuit efficiency for rated load reaches up to 88 %

    從功率單向流動角度出發，提出了一種lcc諧振型恆頻移相單相高頻鏈逆變電路拓撲，在調制系數0 . 1 m 0 . 5情況下，控制移相角按正弦規律變化，使諧振電壓脈沖列的幅值追蹤參考正弦電壓信號，經過整流、濾波、低頻逆變，從而獲得正弦度較好的輸出電壓。理論分析和實驗結果證明對于阻性負載或阻感性負載，移相全橋具有超前橋臂零電壓開通，滯后橋臂或者零電壓開通（ _ 0 ）或者零電流關斷（ _ 0 ）的軟開關特性，而低頻逆變器的各個開關均實現零電壓條件下的開通與關斷。
  4. Secondly, a kind of leading control method on the basis of energy containing in system, which combined the demerits of pid control and neural network control, is presented according to the large hysteresis characteristics of the ph and orp

    由於工業現場的ph / orp系統都是滯后很大的時變對象，針對這個特點，本文提出了根據系統中所蘊藏的能量進行超前控制的控制演算法。
  5. Zero - voltage turn - on and zero - voltage turn - off in lagging arm and leading arm of soft - switching topology, working waveform of power transformer and process of rectifier and transition are presented in detail. the influence of resonant inductance of the power transformer, resonant capacitor and variation of load to the process of soft - switching are given

    主要對軟開關滯后橋臂和超前橋臂的零電壓開通、關斷過程，功率變壓器的工作波形及整流換流過程進行了詳細的模擬分析，並重點討論了逆變器的諧振電感、諧振電容以及負載變化對軟開關過程的影響。
  6. A novel cycloconverter - rype three - phase hf link inverter topology for soft - switching based on phase - shifted full - bridge mode is proposed, whose main advantages are as follows : under the conditions of d < i < and overlap - d, the switches of the leading leg are turned on at zvs and the switches of the lagging leg are turned off at zcs and all switches of the cycloconverter circuit are commutated in the overlapping mode in the interval of zero voltage, which makes the circuit realize soft switching to the utmost extent and reliably solve the problem of peak voltage caused by the storing energy of leakage inductance of hf transformer

    論文提出一種新型移相全橋軟開關周波變流型三相高頻鏈逆變器，電路的主要優點是：前級移相全橋的移相角控制在_ d _ i和_ （ overlap ） - _ d條件下，超前橋臂零電壓開通，滯后橋臂零電流關斷，並使周波變流器所有開關在零電壓期間重疊換相，使整機開關最大程度地實現了軟開關，並可靠解決了高頻變壓器漏感儲能引起的電壓尖峰問題。
  7. First, we examine whether the momentum strategies and contrarian strategies can create significant profits under different formulation horizons and holding horizons, whether past factors ( market return, characteristic of individual stock ) can provide an important implication about the profits of momentum and contrarian strategies. second, we discuss the reasons for the significant profits of momentum or contrarian strategies, including seasonality, cross - sectional risk factors, time - varying risk premium, industry momentum, and stock underreaction, overreaction, and random walk. third, we discuss the link of time series predictability of stock returns and momentum profits, including stock underreation, overreaction, delayed reaction, and time - varying risk premium

    研究目的有四：其一，探討中國股市執行慣性策略或反向策略的顯著獲利模式及與各狀態因子（市場及個股狀態）的關系；其二，全面分析中國股市慣性與反向效應之潛在成因，包括截面風險因素、季節因素、時變的風險溢價、行業慣性效應以及行為金融模型與conradandkaul （ 1998 ）的隨機遊走觀點之爭論；其三，構建非效率市場之股票價格運動方程，並基於此，規范地演進慣性效應之時序生成途徑，包括反應不足、過度反應、滯后反應以及風險溢價的時變性；其四，探討中國股市中投資者的特殊信息反應模式，並以此來解讀中國股市的中短期過度反應與反應不足的現象，以及個股間的超前一滯后關系的表現模式及形成機理。
  8. For a nonlinear system with time - delay, the optimal control problem based on quadratic performance indexes is usually transformed to a nonlinear two - point boundary value problem with not only time - delay terms but also time - advance terms. therefore, this kind of optimal control problem is especially difficult to be solved, no matter exact solutions or numeral solutions

    對于帶時滯的非線性控制系統，其基於二次型性能指標的最優控制問題往往轉化為一個既有時間滯后項又有時間超前項的非線性兩點邊值問題，因此解決這一類控制問題尤其困難，不論是求其精確解還是數值解。
  9. According to the research of the converter s transient operation, the thesis presents the design of the resonant parameters and the dead - time setting range of the converters lead leg and lag leg, and i is confirmed by simulation

    論文在對變換器暫態工作過程研究的基礎上，給出了軟開關諧振參數設計和變換器超前橋臂、滯后橋臂的死區時間設置范圍，模擬驗證了設計的有效。
  10. Lead lag module

    超前滯后組件
  11. Lag - lead compensation

    滯后超前補償
  12. A kind of nonlinear differential filter for the phase compensating, and the other filter basing on the phase and amplitude compensating are introduced in the paper. the filter designed is simulated by matlab and debugged in scm

    為此研究了非線性微分校正，能產生相位超前，用於補償濾波器的相位滯后且不增加高頻增益，后又提出基於相位與幅值補償的濾波器的設計。
  13. An analysis of advanced lagged relationship between share index futures and spot

    股指期貨與現貨之間超前滯后關系的研究
  14. The scheme of realizing soft - switching can be found, at the same tune, the concepts of the leading switches and the lagging switches are presented. two kinds of soft - switching methods, zero - voltage - switching ( zvs ) and zero - voltage and zero - current - switching ( zvzcs ), can be classified on the base of realizing soft - switching of the lagging switches

    在對其控制策略的研究中，找出了可以實現軟開關的方案；同時提出了超前管和滯后管的概念，根據滯后管實現軟開關的方式，將變換器的軟開關方式分為兩類：零電壓開關方式和零電壓零電流開關方式。
  15. In this paper, we will prove some inequalities first. then some oscillation criteria for equations with delay or advanced argument will be given as simple corollaries of the inequalities

    在本篇論文中，我們首先證明兩個不等式，然後根據這兩個不等式得到幾個明確的推論，即關于滯后型微分方程和超前型微分方程振動的判據。
  16. In order to decrease the over - adjusting in temperature and transaction time, a multi - model selector was provided to different scenarios of ascending temperature to make this system be simulated under simulink ' s circumstances. the result of simulation demonstrated that the effect of the system temperature control with model selector is superior to that of the system with pid controller or with pure lag compensation

    為了進一步降低滲氮爐到溫前的溫度超調量及過渡時間，又提出用一個模式控制器來進行多種升溫方式的選擇並在simulink環境中對帶有模式控制器的溫控系統進行了模擬實現，模擬結果表明帶模式控制器的滲氮爐溫控系統的控溫效果又要優于帶純滯后補償的pid控制系統。
  17. Note1 : up screen display power factor and down screen display voltage to be lead or lag

    注1 ：上屏顯示功率因數，下屏顯示電壓超前或滯后。
  18. The laboratory can provide calibration for 50 or 60 hz single - phase power factor meters with measuring range from zero to unity, leading or lagging

    功率因數表本所可為頻率為50或60hz而測量量程由零至一超前或滯后的單相功率因數表提供校正服務。
  19. There is especial systematic background to build up small towns in china. it cannot help but choose small towns " building - up under the condition that planned economic system makes deviation of economic structure of industrialization advancing urbanization, the large number of labor in countryside, and the chance of job is lack in cities. so the systemic barriers in small towns " building - up is the inertia effect of planned economic system

    我國小城鎮建設具有特殊的體制背景，它是為了矯正計劃經濟體制下形成的「工業化超前、城鎮化滯后」的經濟結構偏差和解決我國農村勞動力數量巨大、大中城市就業需求不足而提出的，是提高我國城鎮化水平必然而無奈的選擇，因而小城鎮建設的體制性障礙是計劃經濟體制的體制慣性作用，具有政策剛性、交叉性綜合性和動態性等特徵。
  20. Derivates the transfer function of elements of the servo system, constructed the mathematic model of the position servo system and advance - lag revising controller was designed

    推導出液壓伺服系統各元件的傳遞函數，並由此建立起位置伺服系統的數學模型，設計出超前?滯后校正控制器。
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