random medium 中文意思是什麼
random medium
解釋
隨機介質-
An improved interactive dynamic multimedia synchronization model ( idsm ) based on tpn is proposed. the new model takes the dynamic synchronization properties and the demands of the priority of key medium and the function of user interaction in the distributed systems into account, introduces the allowed blocking time, backtracking rules and so on to handle the problems caused by random delay, blocking or lost packets, and describes the temporal behavior of multimedia information stream fully, accurately and formally. 4
提出了一個新的基於tpn網的互動式多媒體動態同步模型idsm ，該模型充分考慮到分散式環境中多媒體的動態同步特性以及關鍵媒體的優先權和人機交互要求，通過引入容許阻塞時間、回溯演算法等有效克服了網路隨機延遲、阻塞和丟包等因素的影響，以形式化的方式完整、準確地描述了多媒體信息流的時間行為。 -
In this way, corresponding to every single viscoelastic random medium model, we can calculate and gained 6 different wave field characteristic quantities
這樣，對應每一個粘彈性隨機介質模型，我們均可計算得到6個不同的波場特徵量。 -
The rain area is regarded as a random background medium, and the scattering field and backscattering matrix of the cylinder target in rain are gained. in the coherent case, the power of cylinder target in rain and air and their optimum polarization states are studied by the three - step method
在研究雨中目標時，本文把雨區看成隨機的背景介質，利用波傳播理論、目標的邊界條件，得出介質圓柱在雨中的散射場、後向散射矩陣，並進行了相關計算。 -
In the general design and analysis methods for problems of the breakwater stability, the concept of compositive safety factors is used usually. however, floodwater, storm wave and beach erosion as well as properties of soil medium are always random, which may have uncertainties
在防浪堤壩的設計中，傳統的安全性能分析方法採用綜合的安全系數概念，但洪水、風浪、河道沖刷、土力學特性等因子都是隨機性的，具有一定的不確定性。 -
This paper presents a method of probability analysis in order to develop the general design and analysis methods for problems of the embankment stability under random storm wave actions as well as with random properties of the embankment medium. the major purpose of this study is carry out modellings of ( 1 ) probability analysis for the problem of seepage stability of levee projects ; ( 2 ) probability analysis for the problem of erosion due to washout sediments from the embankment ; ( 3 ) numerical analysis for coastal evolution due to beach erosion under energy actions of storm wave
本文根據598084號年浙江省自然科學基金項目和g59901號國家教育部回國留學人員科研啟動基金項目的部分研究目標和研究內容的要求應用概率分析方法研究了在隨機風浪荷載作用下和築堤材料隨機性影響下防護堤壩抗滲流、抗沖刷穩定性的分析計算模型；用數值分析方法研究了在浪潮能量作用下岸灘侵蝕造成海岸演變問題的數學分析模型。 -
To study the wave field characteristics of 2 - d transversely isotropic elastic random medium, we separately calculated the statistical characterizations ( horizontal center frequency, vertical center frequency and relative magnitude of the wave field energy ) in the five different time sections
為研究橫各向同性彈性隨機介質模型中的波場特徵，我們在五個不同的時間區段上，分別計算剖面的三個統計特徵（橫向中心頻率、縱向中心頻率、波場能量相對值） 。 -
To study the wave field characteristics of 2 - d viscoelastic random medium, we divide up the theoretic recording sections ( vertical component ) into two different time sectors, and separately calculated and extracted the three statistical characteristics ( horizontal center frequency, vertical center frequency and relative magnitude of the wave field energy ) in the two different time sectors
為研究粘彈性隨機介質模型中的波場特徵，我們在理論記錄（垂直分量）剖面上選取兩個時間區段；在這兩個不同的時間區段上，分別計算剖面的三個統計特徵（橫向中心頻率、縱向中心頻率、波場能量相對值） 。 -
Through questionnaire, we know the present situation of secondary school teachers ' understanding of self - regulated learning, and give our solutions on these questions. to make the investigation representative, this research adopts the way of the stratified random sample and in the three different levels of schools in the whole city - high quality, medium quality, low quality
為保證調查取樣的代表性，本研究採用分層隨機抽樣法，即按照重點學校和非重點學校，非重點學校又分為較好的學校和較差的學校的標準，在全市中學中隨機抽取300名一線教師，進行實測。 -
Ema, assumes the components distributed in highly random fashion, is a useful method to treat the transport properties of granular composites, and the effective conductance of composites could to be derived sell - consistently by substituting the actual enviroment of the studied grain with effective medium
有效介質理論能夠有效地處理顆粒復合體系的輸運性質。它假設體系中各種組分以顆粒形態隨意分佈，用等效介質替代被研究顆粒外部的介質分佈，並且自洽地求出體系的等效電導率。 -
The theory of diffraction aberrations caused by aero - medium was introduced, a physical model on laser propagation in ordered, random inhomogeneous aero - medium was discussed and analyzed. the far - field energy distributions in two condition were given
介紹了氣動光學介質引起的衍射像差理論，分析討論了一套同時可以用於激光在有序，隨機兩種非均勻氣動介質中傳輸的理論模型。 -
The authors reviewed the achievements of these researches of complex medium including fractured medium, bi - phase medium and random medium, so as to accumulate the basal systemic information for the future
本文對其在裂縫介質、雙相介質及隨機介質等方面的研究所取得的成果作一綜述，以期為今後在該領域的研究積累較為系統的基礎資料。 -
Basic environmental testing procedures. test methods. test fdb : random vibration wide band. reproducibility medium
基本環境試驗程序.試驗方法. fdb試驗.寬帶的隨機振動.可再現性中等 -
Confirmed in the random medium models that the change of the anisotropic coefficients will arouse the change of some statistical behavior in the wave field records, induced and gained several conclusions
證實了在隨機介質模型中，各向異性系數的變化會引起波場記錄上的某些統計特徵的變化，歸納得出了若干結論。 -
Random medium model and monitoring of surface movement and deformation caused by excavation of urban underground works
城市地下工程開挖地表移動與變形的隨機介質模型及監測 -
In this way, corresponding to every single transversely isotropic elastic random medium model, we can calculate and gained 15 different wave field characteristic quantities
這樣，對應每一個橫各向同性彈性隨機介質模型，均可計算得到15個不同的波場特徵量。 -
Trough the staggered - mesh finite difference simulations of the wave equations, simulated the propagation of the seismic wave and the relevant zero offset time record in the 2d viscoelastic random medium models
摘要通過交錯網格有限差分正演，模擬了平面地震波在二維粘彈性隨機介質模型中的傳播及其自激自收時間記錄。 -
This paper, through the staggered - mesh finite difference simulations of the wave equations, simulated the propagation of the seismic wave and relevant zero offset time record in the various transversely isotropic elastic random medium models
摘要本文通過交錯網格有限差分正演，模擬了平面地震波在二維橫各向同性彈性隨機介質模型中的傳播及其自激自收時間記錄。 -
Via the forward modeling in the 2 - d transversely isotropic elastic random medium, we studied the change features of the wave field characteristic quantities as changing the medias autocorrelation length and anisotropic coefficient
我們通過在二維橫各向同性彈性隨機介質中的正演模擬，研究當自相關長度以及介質的各向異性系數變化時，對應的上述波場特徵量的變化特點。 -
Chaper 4, we put forward the concept of the near - field speckles and study their properties by the numerical solution of the integral equation based on the green ' s theorem. we study the near - field speckles produced the by random self - affine fractal surfaces of dielectric medium. the speckle intensities evolve considerably in the near - field region and the local fluctuations in them disappear in the distance of a wavelength
在第四章中，我們提出了近場散斑的概念，並依據介質界面電磁波的格林積分摘要方程對自仿射分形隨機表面產生的散斑光場進行了數值計算模擬研究，發現近場散斑分形特徵與自仿射分形隨機表面的特性有關，且這種分形特徵在非近場區域消失。 -
Based on this study the following conclusions are drawn : the responses of cable - stayed bridge under seismic excitations with spatial variations differ from those under uniform seismic excitations up to 30 % ; the responses obtained by considering travelling effect as well as incoherence effect are close to those obtained by only considering travelling effect ; travelling effect has more significant effect on the seismic responses of cable - stayed bridge than incoherence effect ; if r. m. s. ( root - mean - square ) of random seismic ground motions are equal, seismic responses are considerably greater for the case of soft soil than for the cases of firm soil or medium soil
研究結果表明：與一致地震激勵相比，地震動的空間變化特性可以使斜拉橋的地震響應改變30 % ；同時考慮行波效應、部分相干效應時的地震響應接近於僅考慮行波效應時的地震響應；行波效應對斜拉橋地震響應的影響明顯大於部分相干效應的影響；在加速度均方根相同的隨機地震作用下，斜拉橋在軟場地條件下的地震響應明顯大於在硬場地條件下的響應，中等場地條件下的地震響應介於兩者之間。
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