empirical distribution 中文意思是什麼

empirical distribution 解釋
經驗分佈
  • empirical : adj. 1. 以經驗為根據的，經驗主義的。2. 庸醫的。adv. -ly
  • 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. Empirical distribution function of fatigue life based on harmonic mean

    基於調和均值的疲勞壽命經驗分佈函數
  2. The impacts of both the velocity head and momentum distribution in the t - junction of a tailrace surge tank on the critical stable sectional area of the tank were analyzed by using gardel ' s empirical equations for t - junction flow. based on thoma ' s theory, a formula of the critical stable sectional area is derived. 5

    基於gardel關於三通管水頭損失的經驗公式，研究分析了連接管處的速度水頭以及進出調壓室水體與尾水隧洞水體之間的動量交換，對有連接管的尾水調壓室穩定斷面積的影響，並在托馬（ thoma ）假定基礎上，推導出相應的調壓室穩定斷面的計算公式； 5
  3. Based on the fog drop size distribution model of radiation and advection fog, the backscattering characteristics of fog have been investigated and the empirical relations of the radar reflectivity factor and water content or visibility are obtained

    對霧的雷達後向散射特性進行了分析和研究，得到了平流霧和輻射霧的雷達反射因子與含水量和能見度的經驗關系。
  4. The fog attenuations at infrared wavelength are computed and analyzed with the fog drop size distribution model of radiation and advection fog, the empirical relation of fog attenuation with water content or visibility are obtained at 10. 6 urn wavelength, the relation for radiation fog have a good agreement with the relation obtained by experimental results

    基於霧滴尺寸分佈模型，對霧的紅外輻射衰減特性進行了分析和研究，並給出了10 . 6 m紅外輻射衰減與霧的含水量或能見度的經驗關系，該經驗關系與實驗結果間有很好的一致性。
  5. An empirical analysis is made with the population data of the us cities to verify the theory and models developed in this paper, which will contribute to reconcile the apparent difference between the hierarchical step - like frequency distribution of city sizes suggested by central place theory and the smooth curve reflected by the work on the rank - size rule

    多重zipf維數模型不僅可以有效地統一中心地的等級階梯與位序-規模法則反映的連續分佈，而且可以揭示城市體系演化的更多信息和隱含法則。以美國城市體系1998年的數據為實證對象，給出了城市規模分佈的多分維
  6. The contents include : based on the previous research and the data of experimentations, the author researches and develops a kind of satisfactory semi - empirical formula of nonlinear temperature distribution, and calculates the temperature stress of rigid - framed arch bridge by the fem. the temperature effects of bridge structure by annual and sunlight temperature difference are discussed, it indicates that the temperature effect of annual temperature difference is small but the temperature effect of sunlight temperature difference is great and the temperature stress along beam depth resulted from sunlight temperature difference is nonlinear. with the comparison between the temperature effects of different position of bridge, the results show that where the section of bridge is small, the temperature stress of it is large

    本文主要包括以下內容：從理論上研究並結合實測資料發展了一種比較理想的半經驗溫度場非線性分佈公式，並將有限元方法應用於剛架拱橋結構溫度應力的計算中，對橋梁結構進行整體溫度應力分析；討論了年溫差和日照溫差引起的橋梁結構的溫度效應，表明年溫差引起的溫度效應較小，而日照溫差引起的溫度應力較大且沿梁高呈非線性分佈；分析比較了橋梁結構各個部位的溫度效應的大小，可知截面越小溫度拉應力越大，受力越不利；並對箱梁結構由於構造不同引起的縱向與橫向的溫度效應大小進行了探討，發現在頂板下緣也會出現相當大的溫度拉應力，並且梗腋的存在反而增加了頂板底部的溫度拉應力；還對幾種相近的剛構式橋型的溫度效應進行了分析對比，總結了這些橋型針對溫度效應的優劣，並提出相應的針對性措施。
  7. Based on the empirical equations used for calculating the cost of main and distribution pipes of gravity sprinkler irrigation project, equations for calculating. 4. economical hydraulic gradient, pipe length and the minimum cost of the main pipe were derived through theoretical analysis and mathematical transformation

    3 .在建立的自壓噴灌工程主幹管和配水管道的造價計算經驗公式基礎上，通過理論分析和數學變換，推導得出了自壓噴灌主幹管經濟水力坡度、經濟管長和最低造價計算公式。
  8. Abstract : the empirical likelihood confidence intervals for quantiles are constructed under a - mixing sample, which are based on the result that the blockwise empirical likelihood ratio statistic asymptotically has the 2 ( 1 ) distribution

    文摘:在一定的條件下證明了-混合樣本下分位數的分組經驗似然比統計量的漸近分佈為2 （ 1 ） ，由此可構造分位數的經驗似然置信區間
  9. Because return of chinese security market is non - normal distribution, so we use garch - t model which can describe the time - variation of volatility and the high - peaked and heavy - tailed characteristics of return to calculate var value of market index. from empirical results we know that this model is efficient

    考慮到中國證券市場收益率序列分佈的非正態性，本文使用了既能描述方差時變性又能反映收益率分佈的尖峰、厚尾特徵的garch - t模型計算市場指數的var值，實證結果表明該模型是有效的。
  10. Based on the mixture distribution hypothesis ( mdh ) theory, the paper conducted an empirical study into the daily liquidity and volatility of three futures, i. e., bronze, aluminum and natural rubber, and discovered that the trade volume and volatility display a significantly positive correlation, there is a significantly negative correlation between the open interest and volatility, and liquidity ratio and volatility have no significant correlation

    摘要根據混合分佈假設理論（ mdh ）等前人研究成果，及對中國期貨市場三個主要期貨交易品種銅、鋁和天然膠期貨的日流動性和日波動性的實證研究，可以發現：交易量與波動率有顯著的正相關關系，持倉量與波動率有顯著的負相關關系；而流動性比率與波動性卻並沒有顯著的關系。
  11. It is well known that more stable empirical distribution could be obtained only by a large number of simulation replicates

    很顯然，穩定的經驗分佈依靠于大量的模擬重復。
  12. Firstly, according to the observed data in - situ ( or the empirical parameter data ) and the acoustic logging data, the distribution law of the joint in the computing area can be got. then the network system of the joint can be simulated by the statistical distribution theory and the monte carlo ' s method. and then artificial or automatic dissection program can be used to dissect the fem mesh

    首先，根據現場實測資料（或相關經驗資料）和鉆孔聲波資料，求出計算區域的節理裂隙的分佈規律，由統計分佈理論結合蒙特卡洛方法可模擬出計算區域的節理裂隙網路系統，利用人工或自動生成剖分程序剖分成有限元網格。
  13. The empirical tests of levy distribution on china ' s stock market

    中國股市板塊羊群效應的實證研究
  14. With the meteorological and hydrographic data in songhuajiang and nenjiang valley from 1951 to 1995, using correlation analysis and empirical orthogonal analysis, the rule of the flood and relation between flood and precipitation distribution in this region are discussed. the results show that periodic change of water level is obvious in this region. now water level is in the serious stage from 1980 ' s. there are great relation between the water level of flood period and the precipitation. the unusual precipitation of nenjiang valley has greater impact than that of second songhuajiang valley. at the summer in 1998, songhuajiang and nenjiang valley encountered the ghastly flood and the reason for that is the anomalous precipitation great exceeding the historic maximum

    利用松花江，嫩江流域1951 1995年期間的氣象和水文資料，採用相關分析，經驗正交分析等方法，討論了該流域洪澇發生的規律及其與流域內降水分佈的關系.文章指出，江流域的水位變化有明顯的階段性，且具有全流域一致的特性，目前正處在80年代以來洪澇較嚴重的階段;嫩江流域降水異常偏多對松花江洪澇的影響比第二松花江的作用要大; 1998年夏季，松花江，嫩江流域出現超歷史紀錄特大洪水的關鍵原因是嫩江流域6 8月的降水距平百分率遠遠超過了歷史上的的最大值
  15. Based on the liquid water content and optical visibility, the method for determining the parameters of gamma drop size distribution model of fog and clouds are developed, the drop size distributions for advection and radiation fog are obtained with empirical relations of the liquid water content and the visibility, the characteristics of drop size distribution for different kinds of fog are analyzed and discussed

    提出了利用雲霧含水量和能見度確定gamma雲霧滴尺寸分佈的方法，利用霧的含水量和能見度的經驗關系，得到了輻射霧和平流霧的霧滴尺寸分佈模型，並對不同類型霧的尺寸分佈特徵進行了分析和討論。
  16. In accordance with the damage data of gas pipelines collected in the chi - chi earthquake, the study assumes that the empirical fragility curves can be expressed in the form of two - parameter normal distribution functions

    文中配合集集地震時天然氣管線的災損資料，假設易損曲線為一個具兩參數的常態分佈函數。
  17. 4. in this part, we obtain the empirical bayes estimation for the parameter of the gamma distribution families y (, 1 / 2 ), and obtain convergent rate

    針對伽瑪分佈族（ ， 1 / 2 ） ，在加權平方損失函數下，得到了其參數的經驗bayes估計及其收斂速度。
  18. Moreover, there are good fitted power function relationship between thermal conductivity and soil water content, soil water suction and salt concentration. meanwhile, based on the measured data of soil water content and soil temperature distribution under temperature - controlled conditions, according to philip ' s empirical equation, through difference method, the water diffusivity under temperature gradient was calculated, which can be expressed as a power function of temperature

    此外，研究表明，導熱率與土壤含水率、土壤水吸力、含鹽濃度之間均存在良好的冪函數關系；在取得一定溫控條件下的土壤水分與溫度分佈實測資料的基礎上，根據philip經驗方程，通過差分法計算得出溫差作用下的水分擴散率，該參數可表示為溫度的冪函數形式。
  19. The reasons of smes declining in provincial capitals - an empirical study of the regional distribution of smes in fujian, zhejiang and guangdong

    以廣東澄海玩具業柔性聚集體為例
  20. In this section of the paper, we summarize statistical simulation problem and provide the simulation algorithms of statistics distribution, large sample simulation, testing power, empirical simulation and optimal problem, etc. and show the examples

    摘要本文概述了統計模擬問題，介紹了統計量分佈函數模擬，大樣本模擬，檢驗功效模擬，經濟模擬及優化問題模擬等，給出了一些模擬實例。
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