振幅的衰減 的英文怎麼說

中文拼音 [zhèndeshuāijiǎn]
振幅的衰減 英文
decayof amplitude
  • : 動詞1. (搖動; 揮動) shake; flap; wield 2. (奮起) brace up; rise with force and spirit
  • : Ⅰ名詞1. (布帛、呢絨等的寬度) width of cloth 2. (泛指寬度) width; size 3. (姓氏) a surname Ⅱ量詞(用於布帛、呢絨、圖畫等)
  • : 4次方是 The fourth power of 2 is direction
  • : 衰動詞(衰弱) decline; wane
  • 衰減 : attenuation; decay; damping; reduction; rejection; weakening; deamplification; dampening; dying o...
  1. A new method for measuring the vibration of shadow mask without touch by detecting the light density with reflection type optical fiber sensor is presented. the measurement system based on the new method is designed to make the vibration measurement easier working, faster calculating, and get more precise results. it is an important measurement and analysis tool to improve the performance of shadow mask and display quality of cpt

    本文提出了基於單光纖光強度反射法非接觸式微動測量系統原理,並設計製造了該測試系統,探索出了簡單方便可靠測量方法,能夠準確客觀地反映蔭罩各項參數(各動模動頻率、時間) ,實現了測試裝置簡便化和測試過程自動化,為cpt張緊式蔭罩系統性能改進與顯示質量提高提供了有效測試分析手段。
  2. This movie demonstrates the phase difference and the amplitude decay of the e and h field in freespace

    本影片可看出真空中電場和磁場之間相位差和現象。
  3. Proved with the mixing rate using parameters tw and r ^ it showed that large amplitude and high frequency could greatly enhance the mixing rate. but at large st, the rate of attenuation appears to be in periodic fluctuation at the range of low frequency, so there must be some best partnership of amplitude and frequency

    用參數t _ w 、 r _ ( 15 )表徵混合效率表明:總來說大、高頻率有利於混合,但在st較大低頻率區中速度會有周期波動特性,存在最佳頻率配對。
  4. This movie demonstrates the phase difference and the amplitude decay of the e and h field in a very lossy medium

    本片演示高損耗介質中電和磁場相位差及情形。
  5. It is shown by structural seismic response of four wavelets that littlewood - paley wavelet is not suitable for structural seismic response, because structural response is too small, meyer wavelet is a better wavelet for structural seismic response, for it ' s structural response is agreement with the finite element method, and also harmonic wavelet, structural response under earthquake is a little bigger than finite element method, structural response under odd exponent wavelet is also bigger than finite element method, this method is very simple by wavelet transform, wavelet transform method is different from old methods, one is with which not only knows the effects of earthquake wave detail frequency - band on structural response, but also considers earthquake wave ' s non - stationary of frequency and time - domain value, another is the second mode shape and higher mode shape response that do n ' t attenuate so fast

    通過對這四種小波結構地震反應分析研究說明: littlewood ? paley小波不適合於用來作結構地震反應分析,因為在littlewood ? paley小波下結構地震反應太小,不符合實際情況;用meyer小波作結構地震反應分析比較合適,和有限元法結果比較接近;也可以用諧波小波來作結構地震反應分析,只是在諧波小波下結果略為偏大;單邊指數小波下結構地震反應分析比有限元法稍大一點,它通過小波變換大大簡化了結構地震反應分析。用小波變換方法來進行結構地震反應分析和以往方法不同是:它不僅可以知道地震波具體頻率段對結構反應影響,而且同時考慮了地震波值非平穩性以及頻率非平穩性;另外與以前方法得到結果有差異是,第二型及以後高一點反應沒有以前方法得快。
  6. The influence of various waterpower and configuration parameters on heat transfer is analysed and the rules of convective heat transfer coefficient and the ratio of heat transfer enhancement with mass flux are obtained. at the same time, we gain important results as below : as for resonance chamber with certain configuration, self - oscillation can be generated under suitable configuration and waterpower parameters. for the same configuration resonance chamber, the intensity of the self - oscillation is changed by the waterpower parameters

    當流量及壓差降低至一定程度時,共腔還可能削弱換熱;加熱功率提高會增加流體(水)溫度,流體粘度會隨著降低,這會少對流體脈動阻礙,使脈動得更慢,而脈動增加會增強換熱,故加熱功率對有脈動對流換熱是有影響;自腔產生流體脈動頻率是自腔固有頻率或其整數倍,流體脈動頻率過高或過低都不利於對流換熱,存在一有利於強化換熱頻率范圍。
  7. 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三個方向響應都是隨時間變化,並且伴隨有明顯波動現象產生;對于相同地質條件不同觀察點,距離荷載作用線越遠地方越小,即動具有明顯性。
  8. Signal can not be created but be enhanced by attenuating many kinds of noise from field by processing, so, is ridiculous to say, " do n ' t worry, we can get anything we want by processing "

    值得說明是,迭代法噪音、迭代法補償和串聯反褶積這三個處理過程不是彼此孤立,而是相互聯系,這三個處理過程也是有機組合,起到互補效果。
  9. ( 3 ) we can detection the azimuth of crack growth by abnormal amplitude or the discrepancy of wave - speed. ( 4 ) we can guess whether crack contains fluids by the change of p - wave speed. second, using pore model, under press and temperature, we have studied the influences of pore density on the characteristic parameters of seismic wave

    第一、利用人工裂縫模型,研究了裂縫密度、方位和張開度變化對地震波屬性參數影響,根據實驗結果,總結出:可利用橫波分裂不同程度來檢測裂縫密度高低;可利用縱橫波、主頻、(或品質因子q )和主變化來檢測裂縫張開度變化;可利用速度差異和異常來檢測裂縫發育方向;可利用縱波速度變化來推測裂縫中是否含流體。
  10. To investigate the influence of transmission attenuation of seismic waves in a layer - cake model, the authors formulated a seismic convolution model by considering the coefficient of transmission attenuation, and then provided a new forward algorithm for the model - based seismic inversion of impedance

    摘要研究了地震波在層狀地質模型內透射對地震反射信號影響,給出了含透射褶積模型,為基於模型波阻抗反演提供了一種新正演方法。
  11. These are correlation characteristic parameter, fourier spectrum characteristic parameter, power spectrum characteristic parameter, time domain amplitude characteristic parameter, linear prediction coding coefficients, instantaneous characteristic parameter, absorb and decay coefficient, velocity characteristic parameter and wavelet packet transform characteristic parameter. the parameters contain the surface relatively wide, the prediction which is suitable for the goal of many kinds of seism needs

    分別為:自相關特徵參數、付立葉譜特徵參數、功率譜特徵參數、時域特徵參數、線性預測編碼系數、瞬時特徵參數、吸收系數、速度類特徵參數和小波包變換特徵參數,參數涵蓋面較寬,適用於多種地質目標預測需要。
  12. Along with increase of pressure, the parameters such as velocity, amplitude, main frequency and quality factor of seismic wave change big gradually, while change very weakly with the change of temperature. through testing research for artificial crack and pore model, we conclude that crack density, azimuth, opening and the change of pore have obvious influences on speed, amplitude, attenuation ( or quality factor ) and main frequency of seismic wave etc. but, seismic wave dynamic characteristics are more evident than its kinematical characteristics for the change of crack and pore parameters. therefore, it offers reliable experiment foundation for detecting crack and pore by seismic wave kinematical characteristics ( such as amplitude, attenuation and main frequency etc. )

    通過對人工裂縫和孔洞模型超聲波實驗研究,可以認為:裂縫密度、方位、張開度和孔洞密度變化對縱橫波速度、(或品質因子q )和主頻率等參數均有明顯影響,但裂隙參數變化對地震波動力學特徵參數(、主頻率等)影響遠遠大於對運動學特徵參數(速度等)影響,這為利用地震波和主頻率等屬性參數進行裂縫和孔洞特徵檢測提供了可靠實驗基礎。
  13. Analysis on the primary cause of causing amplitude attenuation in the ultrasonic vibration cutting after frequency tracking

    在頻率跟蹤后引起動切削過程中主要原因分析
  14. This movie demonstrates the phase difference and the amplitude decay of the e and h field in a plasma medium

    本片演示電漿態介質中電和磁場相位差及情形。
  15. The amplitude is the square root of intensity, so it decays much less than intensity as particles get smaller

    是強度平方根,因此要是偵測粒子較小,程度不會像強度那麼大。
  16. The results indicate that the amplitude of the initial solitary wave will decrease exponentially with respect to time t when s > 0 and will increase exponentially when s < 0. some new soliton ( s ) will be generated in the latter case

    結果表明當> 0時,初始孤立波隨時間指數式;當< 0時,初始孤立波隨時間指數式增長,並有新孤立子產生。
  17. During designing hardware circuit, we have used the supreme limitation to raise driving - ability and raise the distance of measurement to returning ware by taking some measurements just like multi - polar enlarging, according to the ultrasonic characteristic of index attenuation when it ' s spreading because we need to measure longer distance ( from several meters to dozens of meters )

    在硬體電路設計中,由於需要測距離較長(幾米到十幾米) ,針對超聲波在傳播時呈指數特性,最大限度地提高驅動能力,對回波進行多級放大,達到了設計要求。
  18. This paper particularly focuses on the theory and implementation of how to inverse underground structure by comparing incident wave and scattering wave, and recording the spare time of the waves, and forward calculations for igneous, metamorphic and sedimentary rocks are carried out to verify the feasibility

    著重論述了利用慢電磁波入射波和散射波關系,以及電磁波走時關系反演地下介質參數基本原理及方法,同時,針對火成巖、變質巖和沉積巖,通過正演理論計算,說明了慢電磁波測深可行性。
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