冪律分佈 的英文怎麼說
中文拼音 [mìlǜfēnbù]
冪律分佈
英文
power law profile-
Given the initial conditions including ( 1 ) number density distribution in space which has the similar form to the present day ones, ( 2 ) both the power law and gaussian mass functions for clusters, and ( 3 ) two different velocity distributions which one has a constant dispersion and the other is described by the eddington formula, the dynamical evolution of globular clusters in our milky way galaxy is investigated in detail by means of monte carlo simulations
本文採用與觀測結果具有相同形式的球狀星團空間密度分佈函數，在給定兩種球狀星團系統的初始質量譜（冪律的和對數高斯的）和兩種球狀星團系統的初始速度分佈函數（愛丁頓速度分佈函數和常數的速度彌散度）條件下，我們採用montecarlo的方法對球狀星團系統的動力學演化進行討論。Based on the ostwald - de waele equation, the leakage characteristics of power - law transmitted by helical gear pump are researched, and the leakage model of power - law in the clearence is founded, and - the velocity distributing and the leakage capacity are worked out by the boundary condition. the power loss of leakage is got through the clearence leakage capacity, and the friction power loss is attained by the velocity distributing. the mathematic calculation model
利用冪律流體本構方程，首次對聚合物流體在斜齒齒輪泵中的漏流特性進行了研究，建立冪律流體在間隙中的泄漏模型，利用邊界條件求出速度分佈及泄漏量；由間隙泄漏量得到漏流損失功率，由速度分佈得到流體摩擦功率損失，並得到間隙最優解的數值計算數學模型，同時給出實例及數值計算結果。By statistical computation we prove that the confluence process of jiangjia ravine obeys the power - law frequency - area distribution
本文通過統計計算得到，蔣家溝泥石流匯流和流量過程在暴發頻率與泥石流總徑流量上服從負冪律分佈。Because the system that has self - organized criticality has two important tokens, those are a power - law frequency - area distribution and long correlation in temporal area
由於自組織臨界性的系統有兩個主要表徵，即在時間域上的負冪律分佈和長程相關性。And we use statistical computation and relativity analysis for the first time. so we make the conclusion that the simulation system obeys the power - law frequency - area distribution by improved 2 - d ca model. and by relativity analysis we know simulation sequences are long correlative
通過改進的二維沙堆自動機模型的構建和模擬，本文得到了一系列模擬數據，並在此基礎之上，首次通過統計計算和相關性分析，得到如下結論： （ 1 ）改進的二維沙堆自動機所模擬的系統在沙粒暴發頻率對暴發規模的關繫上服從負冪律分佈。With increasing viscosity, the velocities of power law fluid and particle showed the same trend
隨著稠度系數的增加，冪律流體和顆粒相的主流速度分佈出現了與流動指數帶來的影響相似的趨勢。Comparing with the current observations, which include the number density distribution in space, mass function, etc., the so - called standard modes for both the power law and gaussian cluster initial mass functions are selected among many runs of simulations. the deviation from the standard modes, which is resulted from the change of the parameter for the initial conditions, is discussed in detail. the discussion of the model parameters is also presented although they are adopted as the typical values based on previous work
對應一定的初始分佈我們發現無論是冪律的還是對數高斯的球狀星團初始質量譜經過長時間的動力學演化都會得到和現在銀河系觀測到的球狀星團系統相符的對數高斯的質量分佈；動力學演化會明顯地改變球狀星團系統的空間密度分佈，靠近銀心區域的球狀星團瓦解得更多；經過動力學演化后的球狀星團速度分佈函數在靠近銀心的區域明顯得不同於初始分佈，初始擁有較大軌道偏心率的球狀星團更容易瓦解。The difference from the traditional optimization method of fgms is that this paper abandons the hypothesis of componential distribution on the basis of power exponent and directly considers the componential ratio and the thickness of each interlayer as design variable of optimization. the method can seek the optimum solution in more capacious space
與傳統的梯度材料優化設計方法不同，本文摒棄了梯度組成按照冪指數分佈規律變化的傳統假設，在優化過程中直接採用梯度塗層各中間梯度層的組分比和厚度作為優化設計變量，可以在更廣泛的設計空間內尋求最優解。Normal stress distribution on the inner cylinder forced by power law fluid flowing in annulus with inner cylinder executing a planetary motion
冪律流體在內管做行星運動的環空中流動時的內管法向應力分佈It was found be compared the two - phase flow of power law fluid - solid with that of liquid - solid that the fluid velocity of power law fluid - solid was bigger than that of liquid - solid and the particle velocity distribution of power law fluid - solid was flatter than that of liquid - solid
對帶顆粒的冪律流體的兩相流流動與液固兩相流流動做了比較，冪律流體兩相流的流體速度在管道中心附近的大部分區域比液固兩相流的流體速度流動的速度大，而顆粒相的速度分佈比較平坦。Moreover, the data processing method of accelerated life test is used to solve the problem of the reliability data conversion under different operating status to liquid rocket engine. and the counter power law model is introduced as the relation model between the characteristic life and the combustion chamber pressure, the accelerated life equation of the constant stress accelerated life test for the weibull distribution is obtained, through the accelerated life equation, the reliability estimate of different combustion chamber pressure is calculated
再次，採用加速壽命試驗的數據處理方法對液體火箭發動機不同工況下可靠性數據折算的問題進行了研究，引入逆冪律模型作為特徵壽命與燃燒室壓力之間的關系模型，得到了weibull分佈下恆定應力加速試驗的加速壽命方程，並通過加速壽命方程折算出不同室壓下的可靠度估計。In ps alt, we obtain the bayesian estimation of each parameter and marginal posterior density when the prior density of shape parameter is continuous using laplace method under ce model. in ssalt, we obtain the bayesian estimation of each parameter using the same method
在序加試驗下，對于逆冪律模型，給出了參數的bayes統計分析，並利用laplace方法解決了分佈的形狀參數取為連續先驗時各參數的bayes估計和參數后驗邊際密度。Recently, complex networks attract more and more attentions from various fields of science and engineering. scale - free network is one of the most important complex network models, where the degree distribution obeys a power law form, like the internet and the www
復雜網路近年來受到來自各個領域的越來越多的關注，其中無標度網路是復雜網路研究中最重要的模型之一，它遵從冪律分佈，如我們的www網路。Along with r ka albert, we have used computer simulations and calculations to show that a growing network with preferential attachment will indeed become scale - free, with its distribution of nodes following a power law
艾伯特與我透過電腦模擬與計算出來的結果顯示：具有優先連結的特性並且持續成長的網路，確實會變成無尺度網路，而且其中節點的分佈將符合冪次定律。分享友人