預振蕩 的英文怎麼說

中文拼音 [yùzhèndàng]
預振蕩 英文
preoscillation
  • 預 : Ⅰ副詞（預先; 事先） in advance; beforehand Ⅱ動詞（參與） take part in
  • 振 : 動詞1. （搖動; 揮動） shake; flap; wield 2. （奮起） brace up; rise with force and spirit
  • 蕩 : Ⅰ動詞1 （搖動; 擺動） swing; sway; wave 2 （無事走來走去; 閑逛） loaf; wander; roam; loiter; go a...
  1. The limitations of such methods based on forced oscillation tests are also pointed out

    文中還指出了類似的基於受迫振蕩圓柱體實驗數據的預報模型存在的缺陷。
  2. This paper introduces the evolution of analytic tools for viv response of slender marine structures, and then put forward a prediction model for viv of a slender riser in which fluid force coefficients obtained in forced oscillation tests are applied more directly than other similar models

    文中介紹了細長海洋結構物渦激振動預報工具的發展，進而提出了一種基於圓柱體受迫振蕩實驗數據的預報模型。
  3. In chapter three, the all sub - circuits including uvlo, current bias, ldo, oscillator, green mode, slop compensation, power limiting, pwm, ovp, blanking time generator, logic controller are designed and simulated. as a result, all of the sub - circuits are satisfied the requirements

    本文第三章對集成電路內各個模塊包括欠壓保護、電流偏置、 ldo 、振蕩器、綠色模式、斜坡補償、功率限制、脈寬調制、過壓保護、前沿消隱、邏輯控制電路等進行了設計與模擬，且達到了預定的設計目標。
  4. The following aspects are involved in this dissertation : 1 ) properties of convergence of the network model under the circumstance of few rooms, the prediction of the early production tally with the growth of the fire in building on the whole while the prediction becomes most fallacious when the rooms increase to a certain number, for instance, 9. the solution of the net mass flux, positive mass flux and negative mass flux is improved and then mass conservation is strictly maintained so that the prediction of the software become more credible and reliable

    本文主要涉及以下幾個方面: 1 ）軟體計算收斂性態在房間數目很少的情況下，軟體開發的前期成果能在總體上成功預測建築火災的發展過程，當房間數目增加到一定的數目（如9 ） ，軟體計算將出現劇烈振蕩的問題，預測結果極不理想。本文改進了軟體對凈質量流量、正、負質量流量的求解，保證了三者之間的嚴格守恆關系。經過改進，軟體的預測結果更可靠，更可信。
  5. The characteristics of precipitation anomalies in summer, previous and simultaneous ssta and preceding winter accumulated snow depth anomalies corresponding to positive and negative phases of 10 - yr mode and 25 - 30 - yr mode are discussed respectively. no matter for 10 - yr mode or for 25 - 30 - yr mode, reverse characteristics corresponding to positive phases and negative phases appear in the above fields. it proves that the decadal variation of sah have a good relation to the decadal variation of other key element of climate system and we can regard sah as a strong signal of the anomalies in the climate system

    （ 4 ）夏季南亞高壓東西振蕩具有明顯的年代際變化特徵，本文分別討論了對應於10年周期態的正位相年和負位相年及25 - 30年周期態的正位相年和負位相年時夏季我國降水距平、前期及同期海溫距平及前冬青藏高原積雪距平的分佈特徵，發現無論是10年周期態還是25 - 30年周期態，對于夏季南亞高壓東西振蕩的正位相年和負位相年以上各要素場呈現為很好的反位相特徵，說明夏季南亞高壓的年代際變化與氣候系統中其他要素的年代際變化具有很好的關聯性，可將南亞高壓看作氣候系統中大氣子系統異常的強信號，通過分析南亞高壓的年代際異常可以更直接地研究和預測區域氣候異常。
  6. These research also approve some inherent phenomena in nonlinear systems such as the interleaving of stability region and instability region, the parameter sensibility of the instable modes, divergence after a relatively long time of chaotic swings ( transient chaos ), a cascade of period double bifurcations to chaos and etc. these phenomena are of great importance to both theoretical research and engineering practice

    研究還證實了一些非線性系統所特有的現象，如穩定域和不穩定域的相互交錯現象，失穩模式對參數的敏感性，一段時間混沌振蕩后的無界現象（稱為預無界混池） ，由周期運動經一連串倍周期分岔直至混濁等。這些現象對理論研究與工程實踐都具有重要意義。
  7. Development of noise prediction method on fluid induced pressure oscillations in cavities

    流動誘導空腔振蕩預測方法的改進
  8. A virtual cathode oscillator with an axially extracted te10 or te11 mode has been investigated using the pic code. it can emit microwaves axially through an antenna without mode converter or transition waveguide, making the system more simple and compact. the efficiency of this device can be enhanced by employing premodulation cavity, resonant cavity, feedback mechanism, and virtual cathode formed by two electron beams

    本文利用物理分析和粒子模擬的方法研究了軸向提取te10 / te11模虛陰極振蕩器，結果表明通過引入預調制腔、諧振腔、反饋端面、雙電子束陰極等結構，可以實現結構相對緊湊、束波轉換效率較高的軸向提取虛陰極振蕩器。
  9. The pwrediction to the vision of diabetic patients by oscillatory potentials of retinogram after cataract operation

    視網膜振蕩電位對糖尿病患者白內障術后視力的預測
  10. In the meantime, the all sub - circuits are also designed and emulated carefully including inverter, rs type flip - flop, voltage reference circuit, error amplifier, voltage comparator, sawtooth - wave generator, pwm comparator, soft activation circuit and so on. as a result, all of the sub - circuits answer the requirements. this chip has taped out with the 0. 5um mix - signal process of csmc

    本文利用cadenceeda集成電路設計工具、 spectres模擬工具，對集成電路內的各個模塊包括反相器、基本rs觸發器、基準電壓電路、誤差放大電路、電壓比較電路、鋸齒波振蕩發生電路、 pwm比較電路、軟啟動電路、驅動電路等進行了具體的設計和模擬，且達到了預先設定的指標。
  11. There are various kinds of the self - oscillations in the preamplifier system of the high power laser facility, the origins of them were analyzed in theory

    摘要分析了高功率激光裝置預放大系統內外各種自激振蕩的來源，通過理論計算和實驗驗證提出了各種自激振蕩的抑制方法，並在實踐中得到驗證。
  12. Subcircuit models are designed and simulated, which includes bias current source, voltage reference, error amplifier, pwm comparator, driver circuit, protection circuits for over - temperature, over - current. at last, combined with periphery component, the circuit is simulated, and the result meets the anticipant requirement

    並對集成電路內的各個模塊包括電流偏置電路、基準電壓電路、誤差放大電路、三角波振蕩發生電路、 pwm比較電路、驅動電路、過熱保護電路和過流保護等進行了具體的設計和模擬，並對整體應用電路進行了模擬，結果均達到了預先設定的指標。
  13. This article emphatically discussed and analyzed following points : load command feed forward function can improve the rapid respond character of steam turbine generator ; lead of load command have advance control function on boiler main control and can highly improve the stability of main steam pressure ; the use of predict control and state space variable function can improve the quality of boiler steam temperature control effectively, control the steam temperature in the defined range and increase the boiler and turbine life and efficiency even if working state changed in a big range ; linear compensation can restrain the vibration of generator load in the condition of big loa d change

    本文重點討論、分析提出負荷指令前饋作用可以提高汽輪發電機快速響應特性；負荷指令的導前功能對鍋爐主控有超前控製作用，能顯著提高主蒸汽壓力的穩定性；採用預測及狀態空間法能有效改進鍋爐蒸汽溫度控製品質，在大幅度工況變化下仍有效控制蒸汽溫度在額定范圍內，提高鍋爐、汽輪機壽命及其效率；汽輪發電機組的快速響應性與汽輪發電機組負荷振蕩問題間的平衡關系，採用線性補償可以有效抑制在負荷變化梯度較大情況下發電機負荷振蕩問題。
  14. The voltage - controlled oscillator and the dual - modulus prescaler are the most crucial blocks in the pll frequency synthesizer. two kinds of voltage - controlled oscillator ( the quadrature voltage - controlled oscillator based on symmetrical spiral inductors and differential varactors, and the voltage - controlled oscillator with wide tuning range based on mos varactors ) and two kinds of prescaler ( the prescaler using phase - switching techniques, and the prescaler using dynamic circuit techniques ) are proposed. then, the complete pll frequency synthesizer is implemented, in which

    壓控振蕩器和雙模預分頻器是鎖相環型頻率合成器中最關鍵的兩個模塊，本論文分別實現了兩種類型的壓控振蕩器（採用對稱螺旋型電感和差分二極體型容抗管的正交壓控振蕩器和使用mos型容抗管的大調諧范圍壓控振蕩器）和兩種類型的雙模預分頻器（使用相位開關技術的雙模預分頻器和使用動態電路技術的雙模預分頻器） 。
  15. ( 4 ) latitude and meridional wind stress fields both have the character of quasi - quadrennial and quasi - biennial oscillation, but their phases are different. so their conjunct effect makes enso oscillation have both quasi - quadrennial and quasi - biennial periodicity and erratic, which causes the forecast of enso events uncertainty

    （ 4 ）緯向和經向風應力距平場具有準4a和準2a的振蕩性質，但是位相存在差異，因此共同作用下造成enso振蕩既有準4a和準2a的周期性，又有不規則性，對于enso事件的預報帶來不確定性。
  16. We chose suitable tcp throughput model to estimate the available bandwidth correctly, using the estimated round trip time and packet loss ratio for the next time interval as parameters of the model to achive the accuracy of estimated network bandwidth. as the observed losses and round trip time vary very dynamically, adjust the sending rate equivalent to the amount of tcp throughput may result in a rather fluctuant sending rate. so we present a rate adjustment like tcp congestion control based on aimd, which increases its sending rate by an additive inereease rate

    根據mpeg4視頻流應用的特點，選擇合適的吞吐量模型，進行合理的參數估計，並根據計算出的帶寬進行相應的速率調整來實現擁塞控制，我們使用未來rtt的估計值和分組丟失率的估計值作為吞吐量模型的參數，增強了控制的實時性，弱化了業務的振蕩性，提高了帶寬預測的準確性；在進行速率調整時，不是簡單地將發送速率調整到與tcp吞吐量模型一致，而是採用類似tcp的aimd策略來調節發送速率，減小了發送速率的振蕩性。
  17. Because quasi - fermi levels of a laser diode ( ld ) vary with the carrier density, it is predicted that a new type of hysteresis loop should occur for the current passing ld while a hysteresis loop appears on the power - frequency curve of the ecld. an explicit analytical expression for the frequency width of the hysteresis loop and the condition for the formation of the hysreresis loop has been deduced

    預測了由於半導體激光二極體（ ld ）的準費米能級之差隨ld內線流子密度的變化而變化，因而，在調諧外腔半導體激光器的輸出功率?振蕩頻率曲線上出現雙穩環的時候，通過ld的電流也應出現一個伴隨的新型雙穩環? ?電流雙穩環。
  18. In this paper, the author propose a new gm ( 1, 1 ) model for oscillation series using the transformation of triangle function, and change them to be the monotone series, then constructe gm ( 1, 1 ) model for simulating prediction of original given data. 3. research on gm ( 2, 1 ) model, the author find that there is no law to choose the initial value of gm ( 2, 1 ) model

    因此，利用本論文提出的新的函數變換數據生成辦法，提出一種函數變換型gm （ 1 ， 1 ）模型，即將初始的周期振蕩數列首先變換成單調增加數列，再利用gm （ 1 ， 1 ）模型進行預報。
  19. Compacting of concrete by vibrating ; compacting by external vibrators during the manufacture of precast components

    採用振蕩法壓實混凝土.第3部分:生產預製件時用外部外
  20. The problems of the optimal object and oscillatory during putting in and out modes are analyzed. the relationship between the comprehensive optimize of the control of voltage and reactive power and the partial optimize of substations is described. a new control law of the shunt capacitor bank and the oltc, which is based on the fuzzy control theory and the forecast control theory, is proposed

    本文分析了目前電壓無功綜合控制裝置（ vqc ）在實際應用存在的目標函數和投切振蕩問題，分析了地區電網中電壓和無功功率控制的全局最優和變電站局部最優間的關系，在此基礎上提出了基於模糊預測控制的電壓無功綜合控制策略，並研製出一套基於工控機控制裝置。
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