logarithmic distribution 中文意思是什麼

logarithmic distribution 解釋
對數分佈
  • logarithmic : adj 對數的。 logarithmic function 對數函數。 a logarithmic scale 計算尺。 logarithmic series 對數...
  • distribution : n 1 分配，分發，配給；分配裝置[系統]；配給品；配給量；【經濟學】配給方法，配給過程；分紅；【法律...
  1. 4 ) the number and mass concentration distributions of the background atmospheric sand particles of ymchuan, bayanhot and tonggunur display a unimodal form, obeying a logarithmic normal distribution, greatly differing f

    黃沙的長距離輸送和小雨是泥雨形成的原因。雲物理和降水與來自沙塵粒子混合，尤其是小於zpm的粒子，導致了華北地區泥雨的發生。
  2. By means of statistical inference as well as hypothesis test method, it is determined that the variables of compressive stress and shearing stress are of extreme - value distribution and that the variables of frictional coefficient and cohesion coefficient are of logarithmic normal distribution

    應用統計推理和假設檢驗方法分析得知，壓應力與切應力隨機變量呈極值型分佈，摩擦系數與粘結力系數隨機變量呈對數正態分佈。
  3. In this paper, some characteristics of flow movement and sediment transport are analyzed by using the flume experiment data. the cross section of compound channel can be divided into four regions : the undisturbed region in main channel, the interactive region between channel and plain, the undisturbed region in flood plain and the boundary region. in the undisturbed regions, the distribution of longitudinal velocity along the depth has the feature of lograithmic. whereas, in the interactive region, the longitudinal velocity does not obey the logarithmic distribution law, but it can expressed as a revised logarithmic function by using a wake function. on the basis of the kinematic equation the velocity distribution of transverse velocity is obtained. in the boundary region, the longitudinal velocity obeys the law of parabolic distribution. furthermore, according to the simplified diffusion equation, the transverse distribution of sediment concentration in the interactive region is deduced. the analysis is in good agreement with the measured data

    本文根據漫灘水流的運動特點，將漫灘水流的復式斷面分為主槽平衡區、灘槽交互區、灘地平衡區及邊壁區等4個區，並給出了各區寬度的經驗公式.根據灘槽交互區垂線流速分佈的變化特點，提出了附加尾流函數的對數流速分佈公式.在簡化水流運動方程和泥沙擴散方程的基礎上，對灘槽交互區內垂線平均流速及含沙量沿橫向分佈進行了理論分析，提出了反映灘槽水流動量交換強度的橫向渦量粘性系數及橫向擴散系數的表達式，得到了漫灘水流垂線平均流速及含沙量沿橫向分佈的解析解，並與實測資料吻合較好
  4. The pearson distribution and the logarithmic normal distribution are used respectively to fit the asymptotic distributions of yearly maximum of the daily precipitation in chengdu during the period between 1951 and 1999

    摘要利用1951 ~ 1999年成都日降水量年極大值的記錄，通過統計推斷，找出了成都日降水量年極大值遵循的漸近分佈。
  5. In the application of pp plots, unconditional variance distribution of logarithmic return and arch type models are tested

    在pp圖的應用中，檢驗了對數收益的無條件方差的分佈和arch類模型。
  6. Abstract : this paper briefly introduces the method of testing the real sensitivity for eed and gives the data processing method in terms of the electrostatic critical ignition energy of conductive - powder eed conforming to logarithmic normal distribution

    文摘:簡要介紹了電火工品真實靜電感度的測試方法，以導電藥式電火工品靜電臨界點火能量服從對數正態分佈為基礎，給出了對應的數據處理方法。
  7. The potential problems related to the applications of k - model under the new coordinates are analyzed and the distribution formula of vertical turbulence viscidity coefficients is deduced on the base of logarithmic velocity of flow according to the characteristics of the model

    分析了在新坐標系下應用k -模型可能存在的問題，並從模型的特點出發，以對數流速分佈為基礎，導出了垂向紊動粘性系數的分佈公式。
  8. Normalization of logarithmic normal distribution through mapping transformation

    用映射變換將對數正態分佈正態化
  9. It has been found that the depth of crack and fracture toughness of material can be expressed by weibull distribution, ratio of depth to length of crack and strength of material can be expressed by logarithmic normal distribution and normal distribution respectively

    對該管道主要隨機變量的統計分析表明，裂紋深度和材料的斷裂韌性表現為威布爾分佈，裂紋深長比表現為對數正態分佈，材料的屈服強度和拉伸強度表現為正態分佈。
  10. When the data is not in normal or logarithmic normal distribution, the least - squared method is not applicable to obtaining the sensitive index

    若試驗數據為非正態或非對數正態分佈，最小二乘法求優會受到限制。
  11. Based on the approach of turning some of the relevant extreme - value - type and logarithmic normal distribution variables into independent and normal random variables, the shear - slipping failure probability of a high arch dam is worked out to be of the order of magnitude of 10 ^ ( - 5 ) by means of second - order moment method

    在將部分相關的極值型與對數正態分佈隨機變量轉換為獨立、正態隨機變量的基礎上，利用二階矩法計算得到某高拱壩的剪滑失效概率為10 ^ （ - 5 ）量級。
  12. Representation of results of particle size analysis - methods of calculation relating to particle size analyses using logarithmic normal probability distribution

    粒度分析結果的表示.使用對數正態概率分佈的粒度分析相關計算方法
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