heterogeneity coefficient 中文意思是什麼

heterogeneity coefficient 解釋
異質性系數
  • heterogeneity : n. 1. 【生物學】異質性。2. 【化學】不均勻性。3. 【數學】不純一性。
  • 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. Both oxyopes sertatus and harpactor fuscipes are important predators of common cutworm ( spodoptera litura ) on tobacco. the effect of several interference factors on the predations of o. sertatus and h. fuscipes on the larvae of s. litura were examined in laboratory. the results indicated that there were significant mutual interferences on their predations with the existence of other individual in the same / different species. as the number of the predator increased, the predation rates decreased significantly. the interference coefficients ( m ) within h. fuscipes and within o. sertatus were 0. 7278 and 0. 6911, respectively, while the interference coefficient ( m ) between o. sertatus and h. fuscipes was 0. 9464. these results showed that the effect of mutual interference on predation in interspecies was more obvious than that in intraspecies. the number of prey captured and the predation rate of predator dropped with increasing the number of tobacco stalks. this result suggested that spatial heterogeneity was also an important factor affecting the predation of predator on prey

    斜紋貓蛛和紅彩真獵蝽均是煙草上斜紋夜蛾的重要捕食性天敵.室內測定幾種干擾因素對斜紋貓蛛和紅彩真獵蝽捕食作用的影響，結果表明這些干擾因素對斜紋貓蛛種內、紅彩真獵蝽種內和兩種捕食者種間的捕食作用均有明顯的干擾作用，隨捕食者數量的增加，其對斜紋夜蛾捕食作用率顯著降低.斜紋貓蛛種內的干擾系數和紅彩真獵蝽種內的干擾系數分別為0 . 7278和0 . 6911 ，而兩者種間的干擾系數為0 . 9464 ，說明兩者種間的干擾作用要明顯高於同一種捕食者種內的干擾作用.兩種捕食性天敵對斜紋夜蛾的捕食量和捕食作用率隨煙草莖桿數的增加而降低，表明空間異質性同樣是影響兩種捕食性天敵捕食作用的一個重要因素
  2. The studies of plane heterogeneity are as follows : the text counts the parameters of the sandlayers " geometric shape of different sedimentous microfacies ; speculates the conditions of lateral communication by sandstone density according to the method brought forward by j. r. l. allen ; gets a group of parameters including the reservoir thickness, porosity and coefficient of permeability by using kriging method according to the data of logging results ; makes certain the direction of coefficient of permeability with variation function by modeling globosity function ; divides the sandlayers into five types by using the method of flowing cell based on three parameters, that is x h, kxh and h / h, and accounts the favorable region. on the base of above - mentioned studies, the text evaluates the heterogeneity of sandlayers and gives the resolutions to these problems to serve the development of the field

    Allen ）等人提出的統計方法，用垂向上砂體密度的界限來推測砂體側向連通情況；根據每口井的測井解釋資料，利用克里金插值法對外間進行插值，得到了一組反映儲層特徵在平面上變化的參數，包括儲層厚度分佈、孔隙度以及滲透率，並且成圖；利用變差函數法，通過球狀函數模擬，確定儲層優勢滲透率方向：根據流動單元法，以儲能系數、容積系數以及凈毛厚度比三個參數為依據，通過聚類分析方法進行流動單元劃分，並且按照參數特徵將其分為五類，統計各砂層有利流動單元區塊。
  3. Mean, stddev, heterogeneity coefficient and fraction dimension are the indices for evaluating the scaling method in object - oriented image analysis. the change trend of these indices corresponding to segmentation scales is used to judge the validity. in this thesis, object - oriented image analysis is introduced fully

    6 .提出可以用影像對象的均值、標準差、異質性系數與分形維數作為評價面向對象尺度轉換的指標，根據這四個指標隨尺度的變化趨勢分析尺度轉換方法的合理性。
  4. The studies of in - layer heterogeneity are as follows : the text depicts the characteristics of heterogeneity by calculating the coefficient of variability, kmax / k and k. max / k. min of sand layers of different sedimentous microfacies ; divides interlayer into two types, and counts their numbers, thickness, frequency and density of a single sand layer according to the characteristics of lithology and logging, finally summarizes the characteristics of interlayer distributing ; sets up five in - layer heterogeneity models and points out that the primary models are model a and c. the studies of between - layer heterogeneity are as follows : the text depicts sand layers " growth and distributing conditions by calculating the lamination factor, sandstone density and overlap coefficient ; makes certain the lithology and thickness of interlayer by the method of contrasting the typical curves

    層內非均質性研究，通過計算不同沉積微相砂體滲透率的變異系數、突進系數以及級差來說明主要儲集微相的非均質特徵；據巖性及電性特徵，將層內夾層分為兩類，統計單砂層段內夾層的個數、累積夾層厚度、夾層頻率及夾層密度，並且根據夾層頻率及密度平面分布圖統計出每層的頻率相對高值區和低值區，總結夾層分佈特徵；根據物性參數隨深度的變化趨勢建立了五種儲層層內物性非均質模式，指出研究區內以a型和c型模式為主。
  5. The result shows that 1 ) formation coefficient is a main factor. 2 ) boundary and formation heterogeneity have much effect. 3 ) water producing gas wells should be produced reasonably according to gas production policy with water controlling technique so as to avoid watered out. 4 ) with increase of non - darcy flow coefficient, gas well productivity decreases. 5 ) in the process of gas well production, formation energy should be used reasonably. 6 ) when skin factor increases from 0 to 6, its open - flow capacity is 60 % - 70 % of that without pollution

    研究表明：地層系數是影響氣井產能的主要因素；邊界和地層非均質對氣井產能影響很大；對于產水氣井，應嚴格按照控水采氣技術政策合理開采，避免水淹；隨著非達西流系數的增大，氣井產能不斷降低；在氣井的生產過程中，必須合理利用地層能量；當表皮系數由0增加到6時，其無阻流量為不受污染時的60 % ~ 70 % 。
  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. Under the conditions of neutral planetary boundary, the difference caused only by the sub - grid heterogeneity of roughness is the function of average grid average roughness and coefficient of variation

    在特殊情況下相對誤差可達40以上，而其中平均風速的大小具有更重要的作用。
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