empirical coefficient 中文意思是什麼

empirical coefficient 解釋
經驗系數
  • empirical : adj. 1. 以經驗為根據的，經驗主義的。2. 庸醫的。adv. -ly
  • coefficient : adj. 共同作用的。n. 1. 共同作用；協同因素。2. 【數，物】系數，率；程度。
  1. It is shown by analyzing large test data that the empirical formula presented in the paper has higher linearly dependent coefficient, lower average relative error and relative standard deviation compared with the traditional empirical formula of orthoscopic and power function

    試驗數據表明，本文提出的經驗公式比傳統的直線式和冪函數式經驗公式的線性相關系數更高，且平均相對誤差和相對標準差都低。
  2. Because it is about empirical tests of risk, this chapter used interrelation coefficient, index of risk decentralization and risk resolution index. the research found that the correlation of price fluctuation in shanghai a - share market reduced and the proportion of systematic risk in total risk changed

    研究發現，上證a股市場股價變動的關聯度較之早期已有明顯降低，而系統風險所佔總風險的比重也呈下降趨勢，分散化投資能夠較大幅度的化解投資風險。
  3. On the basis of theory analysis, the average transmitted light intensity ( correspond to dc value ) was determined as characteristic parameter of raw water using photoelectric method for monitoring the fluctuation of transmitted light and photometric dispersion analyzer ( pda ). the dc value was closely related to both particle concentration and surface area of sand clay simultaneously. the experimental results shows that there is an exponential function relation between dc and surface area of sand clay in unit volume water ( sp ) : dc = asbp in which a and b are empirical coefficients. then the formula of macromolecule flocculant dosage is found to be d = f ( dc ) = e ( dc ) f in which e and / are empirical coefficients and the average correlation coefficient equal to 0. 981. so the model of automatical control system of water treatment plant was established using the formula

    應用透光率脈動檢測技術和光散射顆粒粒度分析儀（ pda ） ，通過理論分析，將pda的輸出信號之一? ?平均透光強度（對應于dc值）作為原水的特性表徵參數， dc值可以同時反映顆粒濃度和比表面積因素的影響，試驗結果證明， dc值與單位體積水中泥沙顆粒總表面積s _ p之間具有很好的冪函數關系： dc = cs _ p ~ d ，式中c 、 d為經驗系數，進而得到了以dc值為參數的高分子絮凝劑投藥量公式： d = f （ dc ） = e （ dc ） ~ f ，式中： e 、 f為經驗系數，平均相關系數達0 . 981 ，利用所建立的公式，建立了前饋? ?后饋聯合控制的在線自動投藥模型。
  4. We point out some advantages and disadvantages. third, apple consume demand in china. the article summarizes development trend and estimates elasticity coefficient about apple consume demand in china, according as questionnaire investigations and statistic data mainly in hubei, henan, jiangxi and zhejiang, we have done empirical analysis on apple ' s consumption influencing factors in china

    概括了我國蘋果消費需求發展趨勢；測算了我國蘋果消費需求彈性值；重點結合湖北、河南、江西、浙江四省的問卷調查資料及文獻統計資料對影響我國蘋果消費需求的因素作了分析，這些因素包括：居民收入水平因素、產品品種質量因素、供給時空因素、消費者購買行為因素等。
  5. The most dangerous sliding surface and the corresponding minimum safety coefficient of slope stability with soil nail structure are searched by empirical genetic - simplex algorithm. the results obtained by empirical genetic - simplex algorithm are compared with the ones obtained by general genetic algorithm

    用經驗遺傳-單純形演算法尋找了土釘支護結構最危險滑裂面及其對應的最小安全系數fsmin ，從而實現了十分重要但計算量很大、很繁瑣的尋優過程。
  6. Firstly a mathematical swath in full scale is studied. the numerical results of total pressure, wall shear stress, corresponding viscous resistance coefficient at different velocity and so on are obtained. the computational viscous resistance coefficients are compared with the estimated ones using empirical formula and the results are found to be in good agreement

    首先對一swath數學船型做了研究，得到不同航速下的物面總壓力、物面切應力分佈及相應的粘性阻力系數等結果，並將各航速下的粘性阻力計算結果和經驗公式估算結果做了比較，吻合得較好。
  7. Friction coefficient switching in the tire semi - empirical model

    輪胎半經驗模型中摩擦系數切換問題
  8. The paper summarized theories to interpret rural residents " income difference and math methods to measure income difference, which laid theory base for further analysis and provided empirical materials, it studied general income difference of rural residents by gini coefficient, theil index, decomposed gini coefficient according to income sources, ten equally separated methods and econometric models, and measured and analyzed income difference and its determinants of rural residents between regions and in liaoning province and neimenggu municipality

    本文歸納了中國農村居民收入差距理論和收入差距的數學描述，為進一步分析奠定了理論基礎和提供了實證素材。本文選用基尼系數、泰爾指數、按收入來源分解基尼系數、十等分組法和計量經濟模型研究了中國農村居民總體收入差距情況，測度並分析了中國農村居民地區間收入差距、遼寧省和內蒙古自治區農村居民的收入差距狀況以及影響收入差距的因素。
  9. 2. on the basis of the soil and water pressure and the lateral horizontal displacement in - situ investigation the force - resisting coefficient of soil layers are back - calculated. and it is less than that determinged form standard codes and the empirical values

    在基坑開挖過程中，下一道土體開挖對上一道支撐的內力和位移有明顯的影響，揭示了經典法（假想梁法、山肩幫男法）的不合理性
  10. Comparison between the computations and field tests shows that the software can provide reliable predictions for natural ventilation cases and that the values for empirical constants including train friction coefficient used by the model are in the proper range

    通過數值計算結果與現場試驗結果的對比，說明該程序對隧道自然通風的計算結果是正確可靠的，同時，也說明了數值計算所採用的物理及數學模型和列車摩阻系數都是合適的。
  11. Based on previous study of pollutant dispersion in vertical direction, an empirical formula for determining the mean value of turbulence viscosity coefficient in numerical simulation of tides in vertical direction was worked out and applied to 3 - d numerical simulation of tides for changxing island reach in yangtze river estuary

    摘要在已有污染物垂向擴散過程研究的基礎上，提出了確定潮流數值模擬中垂向紊動黏性系數的垂線平均值的經驗方法，並將此方法應用到長江口長興島段的潮流三維數值模擬中。
  12. Based on a lot of experimental data, the empirical correlations of single - phase heat transfer coefficient, condensation heat transfer coefficient and pressure drop factors are given

    根據大量實驗數據，得到了計算對流換熱系數、冷凝換熱系數及阻力系數的經驗關聯式。
  13. Government spending, productivity improving and economic growth : an empirical study based on panel data and random coefficient model

    基於面板數據隨機系數模型的實證研究
  14. But statistically, the former manifests significant discriminant power while the latter does not. second, the above empirical results also show that the edf model has good performances in such developed countries as the u. s. a., etc, however, it is inappropriate to apply the edf model in china directly. third, the empirical formula in the new accord, which links the corporate default risk with corporate asset return correlation coefficient, cannot capture the credit risk of china ’ s listed companies very well

    從中本文得到了如下的一些結論:第一，從直觀上看，基於會計信息的logit模型對我國上市公司的信用風險具有明顯的判別能力，基於市場信息的期權理論模型? edf模型也似乎具有一定的判別能力;但從嚴格的統計意義上來看， logit模型仍然具有顯著的判別能力，但edf模型的判別能力不明顯;第二，本文的實證結果同時也說明，雖然kmv公司提出的edf模型在美國等發達國家的應用具有較為良好的表現，但將edf模型直接應用到我國顯然並不適合;第三，新巴塞爾協議中將公司的違約風險與公司間資產收益率相關系數聯系起來的經驗公式也不能很好地捕捉中國上市公司信用風險方面的市場信息。
  15. The combination of both empirical method and function coefficient method is employed to evaluate synthetically the sustainable properties of the railway construction projects in the thesis

    本論文採用實證研究法、綠色營銷功能系數法，評價公司鐵路建設項目的可持續性。
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