衰減函數 的英文怎麼說

中文拼音 [shuāijiǎnhánshǔ]
衰減函數 英文
attenuation function
  • 衰 : 衰動詞（衰弱） decline; wane
  • 函 : 名詞1. [書面語] （匣; 封套） case; envelope 2. （信件） letter 3. （姓氏） a surname
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 衰減 : attenuation; decay; damping; reduction; rejection; weakening; deamplification; dampening; dying o...
  • 函數 : [數學] function函數計算機 function computer; 函數計算器 function calculator; 函數運算 functional operation
  1. The stress-relaxation modulus is a continuous, decreasing function.

    應力松馳量為連續衰減的函數。
  2. The useful life curves of gan - based blue led with al2o3 and sic substrate is fit single exponential function [ i = i1 + i2exp ( - t / ) ]. fron this function, we could get aging information of led about stable inteneity 1, decay intensity i2 and decay time. the novel method of evaluating aging properties of leds was put forward

    用單指數函數擬合了發光二極體的光衰減曲線[ i = i _ 1 + i _ 2exp （ t / ） ] ，這個關系式可以給出三個信息：穩定光強、衰減光強、衰減速度，提出了更加合理的評價led老化性能的方法。
  3. Abstract : from a universal formula for calculating the attenuation cross section of particles in arbitrary shapes, exact expressions for calcualting the attenuation cross section of polydisperse, small spheroids, whose rotary axes are in specific status, have been derived. attenuation cross sections of both liquid and ice particles in different shapes at different wavelengths in microwave band have been computed and analyzed. the results are informative to microwave remote sensing of precipitation

    文摘:從計算任意形狀粒子的衰減截面普遍公式出發，推導出了小旋轉橢球粒子群旋轉軸處于不同狀態時的衰減截面函數表達式，並計算分析各種狀態下衰減截面隨降水粒子相態、形狀和入射波波長的變化特徵，所得結果可用於降水微波遙感。
  4. In the terms of interpolation, the image reconstructed from nearest interpolation or linear interpolation has good edge but serious noise ; reconstruction from 4 * 4cubic interpolation or three b - spline or three - order lagrange interpolations has better local character. 2 x 2cubic interpolations which has both better edge and local character is the ideal interpolation, the following is the basic principle during reconstruction : ( 1 ) the more width of interpolation, the more number of summation and the more order of interpolation polynomial, the higher of density resolution ; ( 2 ) the more of interpolation polynomial and width of interpolation, the more of reconstruction time simultaneously, aimed at eliminating the effects of noise contained in projection data, in this paper, author analysis cause and effects of common artifacts. importantly, discusses convolution back - projection reconstruction algorithm with a shift axis of rotation has been derived for correcting images that acquired with a divergence axis of rotation using the fan beam geometry with an angle - equaled detector

    在ct圖像重建時，選擇有限帶寬窗有較好的空間解析度，三角形窗有較好的密度解析度，選擇餘弦窗則使得空間解析度與密度解析度的折衷；從窗函數的頻譜角度來講，可以用於圖像重建的一個良好的卷積窗函數應該具備以下條件： （ ? ）小的3db帶寬b ，即最小的主瓣寬度； （ ? ）最小的旁瓣最大峰值a ； （ ? ）最大的旁瓣峰值衰減速度d ；就內插函數而言，臨近點內插與線性內插重建圖像噪聲大，但有較好的邊緣與細節； 4 4三次內插、三次b -樣條與四次拉格朗日多項式內插圖像平滑，局部特性較好。
  5. Based on the resolving algorithm of continuous - layer method, the time order analyzing curves, acceleration curves and the response spectra of transfer function at the different points of the ground and at the same point on the different ground conditions are gained. it demonstrates that the responses of ground in x, y and z axial directions all change by time, and the obvious wave propagation appears in ground. for different observing points on the same ground condition, at more distant points from the load line, the less swings are found, that is to say, vibration possesses the obvious characteristic of attenuation

    基於分層法的解析演算法，得到了在不同點以及在同一點但不同地質條件下的時程分析曲線、加速度變化曲線和傳遞函數反應譜，結果表明，地基土在x 、 y 、 z三個方向的響應都是隨時間變化的，並且伴隨有明顯的波動現象產生；對于相同地質條件的不同觀察點，距離荷載作用線越遠的地方振幅越小，即振動具有明顯的衰減性。
  6. In detail, a class of cardinal orthogonal scaling functions, which are abbreviated as cosf, are constructed in the third section, and are proved that they have the properties of decay ; in the fourth section, the regularities of these cosf are studied in the generalized condition ; under the two special cases, the regularities and the decays of these cosf are discussed in the fifth and sixth sections, respectively

    具體為：第三節構造了一類正交基插值尺度函數（簡稱cosf ） ，並證明它們具有指數衰減性；第四節調查了一般情況下這類cosf的光滑性；第五節、第六節分別討論了兩種情況下這類cosf的光滑性和衰減性。
  7. Using the canonical variable representation ( x, p ), the light - damping oscillator is discussed by the corrected time - dependent perturbation methods of dirac, it is turned out that the energy levels have shift and breadth, and the wave function decaying with time exponentially

    採用正則變數（ x ， p ）表象討論輕阻尼振子，並對量子力學含時微擾的狄拉克方法加以修改，得出量子能級有位移和寬度，以及波函數出現隨時間指數衰減的行為
  8. Bessel function design simulation results show the small pass - band ups, stop - band attenuation, in the pass - band with a better group delay characteristics, which can meet the design requirements

    模擬結果表明貝塞爾函數設計的濾波器通帶起伏小，阻帶衰減大，在通帶內群延遲特性較好，可以很好滿足設計要求。
  9. At last distribution functions of load modes in life service are presented. based on the resisting force model and load model, the limit state equations of rc bridge are formulated. according to the resisting force is time - dependent and vehicle load is the non - gaussian distribution, jc method is applied to calculate the time - dependent reliability index of rc bridge

    在抗力衰減模型及橋梁荷載模型的基礎上，將可靠度理論引入橋梁結構的評定中，推導出了橋梁結構耐久性極限狀態方程，並根據耐久性極限狀態方程中抗力是時間的函數，以及車輛荷載為非正態分佈的特點，應用當量正態法（ jc法）編制相應的程序計算橋梁構件的時變可靠度指標。
  10. The long - time decay behavior of solutions of one dimensional 4th - order degenerate parabolic equation is studied by using the entropy function and energy estimate method

    摘要利用熵函數並結合能量估計，研究了一維四階退化拋物方程解隨時間衰減的行為。
  11. This paper relates to some problems about the determination of design ground motion parameters, which include the choice of the attenuation relationship of rock horizontal acceleration response spectrum, the impact of focal depth to rock peak horizontal acceleration and rock response spectrum curves, the choice of intensity envelops function and random input phase, the choice of soil nonlinearity and shear wave velocity, scale of design ground motion response spectrum etc. in the researches of relative aspect, based on a typical section plane of the engineering site, influence of the change of some parameters on design ground motion parameters and the existing errors and corresponding rules are studied by using the method of one dimension model of equivalent linearization

    摘要研究了確定設計地震動參數中涉及的若干問題，其中包括基巖水平加速度反應譜衰減關系的選擇、震源深度對基巖水平加速度峰值及基巖反應譜曲線的影響、強度包絡線函數及輸入隨機相位的選擇、土體非線性特性參數和土層剪切波速值的選擇、設計地震動反應譜的標定等問題。
  12. Store spot lighting attenuation function in a texture

    將聚光燈的衰減函數存在到紋理內。
  13. Amplitude decay function

    振幅衰減函數
  14. Fibre optic interconnecting devices and passive components - basic test and measurement procedures - part 3 - 5 : examinations and measurements - wavelength dependence of attenuation

    纖維光學互連器件和無源元件.基本試驗和測量程序.第3 - 5部分:檢查和測量.波長衰減函數
  15. Fibre optic interconnecting devices and passive components - basic test and measurement procedures - part 3 - 7 : examinations and measurements - wavelength dependence of attenuation and return loss

    纖維光學互連器件和無源元件.基本試驗和測量程序.第3 - 7部分:檢查和測量.波長衰減函數和回波損耗
  16. Life time of mn2 + in nano - zns was measured and was found to be close to that of the bulk materials. therefore the quenching centers quench the exciton but not the mn2 + ion self. 2. the increasing curves are different in film and ethanol colloids because there is diffusion process of quenching centers in colloids

    對薄膜樣品的熒光增強曲線的擬合表明，顆粒表面猝滅中心數目隨輻照時間的衰減函數是非e指數形式;同時考慮溶液中猝滅中心通過向顆粒表面的擴散而逐漸耗盡，很好地解釋了溶膠的增強曲線與固體薄膜的增強曲線的不同。
  17. Based on priestley ' s evolutionary spectrum theory, an evolutionary process modulated by decline composite exponential function, is investigated as one kind of non - stationary excitation commonly encountered in engineering, the analytical solution of the response properties is gained due to proper simplification

    基於priestley的演變譜密度理論，對于工程中常用到的衰減指數函數調制的演變過程激勵，可以通過對結構響應的合理簡化，得到響應特徵的解析形式。
  18. By studying the late - time evolution of massive scalar fields in the charged black hole - global monopole background, we find that the asymptotic decay of these fields is dominated by an oscillatory inverse power - law tail, and the decay is faster in the case

    我們通過對在單極子荷電黑洞背景中有質量標量場後期演化的研究，發現振蕩反冪函數的衰減方式支配了有質量標量場的後期衰減。
  19. According to the research of the medium - voltage power line transmission characteristics and frequency - domain modeling of bottom up mode that is to accquire characteristic parameters by theoretical calculation, the characteristic modeling of medium - voltage power line is established, and the suitable parameters which can restrain the signal attenuation is gained

    本文首先通過對中壓電力線傳輸特性的研究，利用從下往上的頻域研究模式，即通過理論計算獲得特徵參數，建立了中壓電力線傳輸通道特性模型，推出了符合中壓電力線傳輸函數變化的參數，可以有效地抑制信號衰減。
  20. It is shown that the optimal cost function will be decreasing if the terminal state of the controller lies in a certain set and the upper bound of the decaying coefficient satisfies some conditions

    指出當控制器的終端狀態處于某集合內且集結衰減系數的上界滿足一定條件時，其最優目標函數遞減。
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