oscillation function 中文意思是什麼

oscillation function 解釋
振蕩函數
  • oscillation : n. 1. 【物理學】振蕩，擺動，振動；振幅。2. 動搖，猶豫，仿徨。3. 蹣跚。4. 【無線電】發雜音。
  • function : n 1 功能，官能，機能，作用。2 〈常 pl 〉職務，職責。3 慶祝儀式；（盛大的）集會，宴會。4 【數學】...
  1. Forced oscillation of a class of nonlinear parabolic function differential eqation

    一類非線性拋物泛函微分方程的強迫振動性
  2. The dispersion equation represented by the plasma dispersion function is numerically evaluated, the dispersion relationship for nonrelativistic longitudinal oscillation is derived from the kinetic plasma equations

    摘要從等離了體動力論方程出發，通過對由原色散函數表示的色散方程進行數值計算來研究非相對論性等離子體縱振蕩的色散關系。
  3. On the other hand, the function of the rough regulation is the same as the open loop system. the a / f controller adopts the approaching increment method in the smooth regulation and the pi controller for non - oscillation or stable increment method for low - speed oscillation in the micro - regulation

    噴氣占空比粗調階段為對map圖執行取值操作；細調階段為執行增量逼近法的階段；微調階段為執行pi環節或執行低速振蕩微調。
  4. There are five parts are as follows : in part one, the concept of switching function is introduced first to establish the nonlinear mathematical model of the induction motor variable frequency speed adjustment system which is fed by a sine pulse width modulated ( spwm ) inverter and takes the effect of the main magnetic circuit saturation into consideration, then the low frequency oscillation of the system is simulated according to the model. next, from the view point of energy conversion of the inverter - induction system, a criterion for the low frequency oscillation is proposed to determine whether the system is in low frequency oscillation which is judged by whether the interval of the negative current component of the inverter input current is more than 1 / fc ( fc is the carrier wave frequency of the inverter ) or not

    首先引入開關函數概念，建立了正弦脈寬調制（ spwm ）逆變器供電異步電動機，考慮主磁路飽和時的變頻調速系統整體數學模型，模擬系統的低頻振蕩；其次從逆變器-異步電動機系統能量轉換角度出發，提出通過檢測逆變器輸入電流中負電流的間隔時間是否大於1 / f _ c （ f _ c為逆變器載波頻率）來判定系統是否出現低頻振蕩；最後的實驗結果驗證了系統低頻振蕩建模和判據的實用性和正確性。
  5. Although reducer can avoid step sense and oscillation partly, the strap transmission will influence orientation precision ( it is key norm to the small metallographic sample cutting machine ), so plan to use step motor to drive the screw directly, the step motor at low velocity, which is not drived by the subdividing drive system, will have obvious oscillation and noise that would influence the cutting function, the usage life and sample structure

    由於步進電機是通過皮帶輪減速來驅動絲杠，進而帶動砂輪片前進和後退，雖然減速能部分消除步進感和振動，但皮帶傳動會影響定位精度，定位精度對精密切割機十分關鍵的技術指標。採用步進電機直接驅動絲杠，未經細分驅動的步進電機在低速運行時，有明顯的步進感、振動和噪聲，從而對切割的性能、砂輪片的使用壽命、試樣的組織結構產生較大的影響。
  6. The single - chip function generator icl8038 can get synchronous sine wave of constant amplitude in pll as voltage control oscillation ( vco ), which is a basic signal source of static frequency converter

    單片函數發生器icl8038在pll中作為壓控振蕩器（ vco ）產生同步等幅正弦波，可作為靜止變頻器的基準信號源。
  7. We consider the traveling waves of a delay cnn system with the output function f given as a non - linear function in the latter. we show the existence of monotone traveling waves solutions and describe the global structure of traveling waves such as monotone, damped oscillation, periodic oscillation and unbounded etc as the wave speed c is classified in r

    第二部分我們考慮具時滯非線性cnn系統模型，得出方程單調行波解存在，並將波速c r分成若干個區間，得出c在各個區間時行波解曲線相應的類型包括單調、衰減振動、周期振動、無界等類型。
  8. Important missing aspects are : turbulent flow, numerical discretization techniques specially the relevant and difficult topic of numerical treatment of advection and related numerical methods of solution, variable property fluids, boundary layers, stability, etc. rather, it focuses on more primitive and fundamental issues of numerical treatment of advective equation and proper formulation of initial boundary value ( ib vp ). numerical problems associated with advective dominated transport include spurious oscillation, numerical dispersion, peak clipping, and grid oriention. however, the key of numerical solution of three - dimensional advective problem is searching for a high - precision interpolating function, which can keep the computational stability and low damping

    3 、針對三維純對流方程提出了實用的擬協調單元模式，並與線性插值模式和協調單元模式比較后表明，在物理量大梯度變化的情況下，線性插值模式會產生較大的數值阻尼，導致解的失真；協調單元模式具有極高的計算精度和良好的計算穩定性，還可較好地克服數值阻尼，但由於計及物理量的二階導數項，計算工作量大，邊界條件給定尚存在一定的困難；而擬協調單元模式不僅具有協調單元模式計算精度高的優點，還避免了物理量的二階導數項，可大大地減少計算工作量。
  9. In section 5, e are in a position to consider some properties, mainly oscillation, cycle length and periodicity, etc, for a rational difference equation involving maximum function, partly solving an open problem. several natures for lyness equation are studied in section 6

    第六節中研究了tyness方程的一些性質；首先對于常系數的tyness方程，得到了其周期性的幾個充分條件，尤其是5一周期的充要條件；據此解決了一個關於差分方程周期性的公開問題；然後把這個方程推廣到一般情形，研究其振動性、環長與周期性等。
  10. Therefore, the modified transformation of triangle function is proposed for the oscillation series, and the monotone series can be obtained. 2

    因此，本論文提出一種變形的反三角函數變換方法，利用反三角函數的多值性，可將周期振蕩的數列變換成單調增加數列。
  11. 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。
  12. Secondly, the correlations between el nino southern oscillation ( enso ) with the temperature and precipitation during the recent 50 years in heilongjiang are analysed by the bivariate wavelet transformation applying marr wavelet function. and some comparisons are made by applying both bivariate wavelet transformation and fourier cross spectral methods to the data

    其次，選取marr小波函數，採用交叉小波變換方法分析了近50年來黑龍江省氣溫和降水與nino3區海溫和南方濤動指數的相關關系，並與傳統的交叉譜分析結果進行了對比分析。
  13. ( 6 ) the results of the stream function field of quasi - resonance three waves transforming with time evolving make sure further that the low - frequency oscillation exists in extratropical latitude, which has greater corresponding relationship with the wave oscillation obtained from the combination of the basic flow, the number of three waves and amplitude

    （ 6 ）在準共振三波流函數場隨時間變化的試驗結果中，進一步證實了中高緯大氣存在較好的低頻振蕩，且與相應的基流、三波波數和振幅組合所得的波動振蕩有較好的對應關系。
  14. Northern oscillation index defined based on stream function and velocity potential of atmospheric movement and its application

    速度勢定義的北方濤動指數及其應用
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