variation coefficient 中文意思是什麼

variation coefficient 解釋
變差系數（離差系數）
  • variation : n 1 變化，變動。2 變量，變度，偏差。3 【語言】語尾變化；變體，異體；【數學】變分，協變；順列；【...
  • 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. The results show that : l ) there are three anomalous high temperature areas and three anomalous low temperature areas, and the whole area high temperature anomaly took place in the late 1980s, whereas the low temperature anomaly in the 1970 ; 2 ) the spatial mode manifests identical variations in the whole area, and the temporal coefficient curve is of 2 - 3 year period oscillation and an interdecadal abrupt in the late 1970s ; 3 ) the variance of interdecadal component is obviously larger than that of interannual in the most part of nespa ; 4 ) the interdecadal variation of the temperature is mainly linear ascendance in the late 1970s, the large range anomalous high ( low ) temperature occurs when the interdecadal and interannual anomaly are both positive ( negative ) in the year ; 5 ) the temperature anomaly is divided into four patterns : southern, northern, eastern and western patterns, in which the interdecadal variation of the southern and western patterns is relatively importance and the interannual variation of eastern and northern pattern is relatively importance

    本文用夏季（ 6 - 8月）中國東北地區91個測站44年氣溫資料，對該區夏季氣溫的氣候平均和異常場進行分析，採用諧波分析將異常變化的年代際、年際尺度分量分離，分別分析兩種尺度上氣溫異常的時空特徵，最後應用reof進行了氣溫異常的區劃，研究局域異常變化的年代際、年際分量的變化特徵。結果發現： 1 ）東北夏季有三個異常高溫高發區和三個異常低溫高發區。全區性異常高溫（低溫）階段出現在上世紀80年代后（ 70年代） 。
  2. The mold cavity number is used to group plastic cuvettes at production time ; this helps to ensure the lowest cuvette - to - cuvette variation in extinction coefficient

    在生產過程中，通過鑄模型腔的數量用來對塑料試管進行分類。這對于確定試管間的最低消光系數很有幫助。
  3. Third, according to an example, the influence on soil displacement stress etc under harmonic vibration load induced by infiltration coefficient and loads frequency variation is studied numerically in dissertation. finally, the difference of layered saturated soils consolidation between rectangle and harmonic vibration loads is studied in this dissertation

    再次，以數值方法研究了簡諧荷載作用下成層飽和地基二維biot固結的一般規律，同時還研究了固結情況受滲透系數，頻率等參數影響的規律。
  4. In views of hebei province ' s existing situation of rural economy, and with reference to the civil and abroad achievements in scientific research on the field, this thesis choose two sample groups - 11 cities and 138 counties of hebei province in light of division into districts and analyses the rural economy difference of hebei by using total and mean index, the social product gross of rural, rural labor productivity, the mean net income of rural, and methods of variation coefficient, comprehensive index and so on.

    針對河北省農村經濟發展的現狀，本文借鑒國內外區域經濟差異的有關研究成果，以現行行政區域為基礎，通過截取河北省11個地市和138個縣（市）兩組不同的樣本，選取總量指標農村社會總產值，人均指標農村人均社會總產值、農村勞動生產率、農民人均純收入，運用變異系數、綜合指數等方法對河北省農村經濟的差異進行分析。
  5. Using the concept of heredity knowledge and its heredity coefficient of s - rough sets, it gives the concept of variation coefficient of knowledge, presents the theorem of attribute dependence of variation coefficient and the relation theorem of heredity - variation, and puts forward the heredity mining of knowledge and its algorithm in conclusion

    摘要利用s -粗集中的遺傳知識及其遺傳系數的概念，給出了知識的變異系數的概念；提出了變異系數屬性依賴定理、遺傳變異關系定理；並給出了知識的遺傳挖掘及其演算法。
  6. The linear relation assumes between the mean characteristic parameter, sorting coefficient, variation coefficient of pore structure by rectangular method and the fractal dimension by integrated linear regression, indicating that the fractal dimensions can be used to quantitatively describe the heterogeneity of reservoirs

    用由矩法計算所得孔隙結構特徵參數均值、分選系數及變異系數與用整體線形回歸所得分形維數的線性關系說明，用分形維數來定量描述儲集層非均質性是可行的。
  7. Then, from the expressions of structural random response of the frequency domain, the computational expressions of the mean value, variance and variation coefficient of the mean square value of the structural displacement and stress response under the stationary random excitation or non - stationary random excitation are developed by means of the random variable ’ s

    在此基礎上，從隨機振動頻域分析出發，導出了在平穩或非平穩隨機激勵下，隨機結構的位移響應均方值、應力響應均方值的數字特徵計算表達式，通過算例驗證了所建模型和所提求解方法的正確性和有效性。
  8. Based on the standard deviation and variation coefficient, soil water change in the profile could be divided into four layers by cluster analysis

    基於標準差和變異系數兩個指標，採用聚類分析，可將土壤剖面水分垂直變化劃分為四個層次：速變層、活躍層、次活躍層和相對穩定層。
  9. Study on calculation of energy variation coefficient in water supply

    供水能量變化系數計算方法探討
  10. 3 ) the sandbody distribution, physical properties, pore structure and heterogeneities are affected by the microfacies. at the center part of underwater distributive river course, the petrophysics and physical properties are both better than that at the edge of the microface. 4 ) the chang 61 2 - 3 substrata and the substrata of chang 62 " member which show the better porosity, permeability, and better pore structure ; display lower permeability variation coefficient, dart - coefficient and contrast - coefficient and good connecting sandbody so the horizontal heterogeneities is weaker ; whereas manifest stronger inner - heterogeneities due to the numerous intermediates ; present stronger inter - heterogeneities caused by the greater frequency of sandbody

    長6儲層中長6 _ 2 ~ （ 1 - 3 ）和長6 _ 2 ~ 1砂層中的各個小層的孔隙度、滲透率值、含油性較好；平面非均質性較弱，表現為級差、突進系數、變異系數較低且砂體的連片程度高，鉆遇率和連通系數較高；與此同時，層內非均質性較強，表現為垂向上夾層的數目較多，厚度較大；層間非均質性也較強表現為分層系數較高。
  11. Daily variation coefficient

    日變化系數
  12. The quantitative relationship between the corrosion residual life and corrosion rate, variation coefficient, corrosion allowance and reliability is built up, and equations for calculating the corrosion residual life are derived

    初步建立了腐蝕剩餘壽命與腐蝕速率及變異系數、腐蝕裕量、可靠度之間的定量關系，得到了確定腐蝕剩餘壽命的計算公式。
  13. About the confirmation of the position evaluation factors scale, the thesis has put forward using the fuzzy analytic hierarchy process ( fahp ) to evade subjective factor influence and make the position evaluation system more scientific. the thesis makes use of mathematics tools, such as the standard deviation of the sample, variation coefficient, etc. to analyze the deviation that the judge panel give a mark, and carry on effective correct ing

    其中在崗位評價因素權重的確定問題上，提出藉助模糊層次分析法（ fahp ）的系統理論來規避主觀因素的影響，使崗位評價體系的設計更趨科學化；還利用樣本標準差、變異系數等工具來分析評委打分的偏差，進行有效的糾錯處理。
  14. With increase of the climate variability, the amplitude of increased yield simulated would be reduced. and the variation coefficient ( vc ) of the simulated yields and their instability would also increase

    但隨著氣候變率的增大，模擬產量的增幅明顯變小，產量變異系數增大，穩產性變差。
  15. To overcome the shortcomings of the methods to subjectively or objectively determine the weight of indexes, the group eigenvalue method combining with the variation coefficient method was adopted

    為解決用主觀賦權法和客觀賦權法確定指標權重存在的問題， ?用群組決策特徵根法和變異系數法相結合的方法。
  16. The monte - carlo method is applied to analyze the reliability of soil nail stability and to discuss the averages and variation coefficient of soil parameters on the reliability index based on an engineering example

    研究各種參數的重要程度以及影響范圍，得出有意義的結論，並對土釘設計施工提出建議和要求。
  17. The first part introduces the indexes of the regional disparities and the methods of regional disparities calculation. for example, gini coefficient, standard deviation, variation coefficient, and so on. at last, sum up the study results

    第一部分首先對地區差距測算指標進行研究，介紹了測算地區差距的多種計算方法，如標準差、基尼系數、變異系數等，並詳細總結了研究領域目前的實證研究成果。
  18. On the one hand, intra - annual distribution of runoff is extremely uneven with high concentration degree ; while on the other, the variation coefficient and annual extreme value little with weak increase tendency of annual changes of runoff volume but it is relative stable

    分析結果表明：奎屯河流域徑流補給具有地帶性和多樣性特點，補給來源主要以冰川融水和雨水補給為主；年內分配極不均勻，集中程度高；年際變化相對穩定，變幅小，多年呈微弱增加趨勢。
  19. In the paper, the main results are brought forth in five aspects as follows : ( 1 ). the analysis of statistics the characteristic indicated that the variation coefficient of the soil nitrogen density of 0 ~ 30cm depth is lower, the variation coefficient is only 3. 6 %, the variation coefficient of the nitrogen density of 0 ~ 100cm depth is much bigger than that the 0 ~ 30cm depth, it is 100 %. based on the second national soil general survey material, the average soil profile depth is 101cm, this is in corresponding with skew normal distribution, its standard deviation is 0. 0192

    通過研究，得到以下認識與結果： （ 1 ）統計特徵分析表明， 0 30cm厚度土壤氮密度的變異系數較低，為3 . 6 ， 0 100cm厚度的氮密度的變異系數相對于來說就很大，為100 ；全國土壤剖面深度平均為101cm ，符合偏正態分佈，標準方差為0 . 0192 ； 0 30cm厚度土壤氮密度服從對數正態分佈，而0 100cm厚度土壤氮密度基本服從偏正態分佈。
  20. Using the regional trial data of guangdong hybrid rice in 1994 and 1995, and regional trial data of national late hybrid indica rice in 1995 and 1996, by t test, variation coefficient and regress coefficient, analysis and compare with the fertility character, steady character and adaptive character of teyou 524 and ck ( shanyou 63, shanyougui 33 ), the result showed : it was obviously that the fertility character and adaptive character of teyou 524 was better than ck, but steady character was between shanyou 63 and shanyougui 33, it was a quite good lat - mature and high - yield new hybrid rice combination

    摘要利用1994和1995兩年廣東省雜交稻區域性試驗資料以及1995和1996兩年全國?型雜交晚稻區域性試驗資料，通過t檢驗、變異系數和回歸系數分別對特優524和對照種（汕優63 、汕優桂33 ）的豐產性、穩定性和適應性進行分析和比較，結果表明：特優524的豐產性、適應性均明顯地優于對照種，而穩定性則次於汕優63 ，但好於汕優桂33 ，是一個較為理想的遲熟高產雜交稻新組合。
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