differentiation index 中文意思是什麼

differentiation index 解釋
分異指數
  • differentiation : n. 1. 差別，區別；區分，劃分。2. 【生物學】分化，變異。3. 【地質學；地理學】（從共同的巖漿產生出不同的巖石的）分異作用。4. 【數學】微分法。
  • index : n （pl es dices ）1 索引。2 指標，標準，標志。3 示[食]指 （＝index finger）。4 指數。5 【印刷】指...
  1. The results showed that the mean proportion of polymorphic loci ( ppb ) of anabasis aphylla, which comprised 3 subpopulations ( 58 individuals sampled ), generated by 16 primers was 94. 56 %, the value of ppb of ceratocarpus arenarius, which had 4 subpopulations ( 80 individuals sampled ), using 16 primers was 98. 00 %. the paper had proved that the higher genetic diversity and the genetic differentiation existed in the populations of boih anabasis aphylla and ceratocarpus arenarius, while the latter had much more genetic diversity than the former. moreover, the study discussed the shannon information index and nei ' s gene diversity index of the two species natural populations, which indicated that there were more genetic variations within the subpopu

    另外，通過rapd資料的聚類分析及相關性分析研究，發現無葉假木賊和角果藜自然種群的遺傳結構與綠洲沙漠過渡帶的微生境生態因子（主要是土壤因子）相關，其中無葉假木賊亞種群遺傳多樣性水平不僅與土壤含水量（ w ） 、鉀鈉離子濃度（ k + na ）和氯離子濃度（ cl ）呈顯著的正相關（ p 0 . 05 ） ，還與土壤中有機質（ som ） 、全氮（ nt ）和全磷（ pt ）含量呈顯著的負相關；同時，角果藜種群的遺傳多樣性水平與土壤中有機質（ som ）和全氮（ nt ）含量呈顯著的正相關，而與co _ 3 ~ （ 2 - ）濃度呈顯著的負相關；除此之外，其它土壤生態因子與兩物種遺傳多樣性水平的相關性均不顯著（卜0 . 05 ） 。
  2. The genetic structure has changed due to artificial selection and genetic differentiation index indicated slight differentiation among them

    由於人工定向選擇，它們的遺傳結構已經起了一定的變化，分化系數表明它們之間已經產生了分化。
  3. Corresponding relationship of maize leaf age index, ear differentiation and shape

    玉米葉齡指數與穗分化及外部形態的對應關系
  4. Simulation is operated with ns2 under linux, and the simulation results show that, the presented algorithm is simpler and more practical, while it can improve the fairness index of ad hoc network to a large extent compared with the ieee802. 11 binary exponential backoff ( beb ) algorithm. it can make better use of the wireless channel by dynamically adjusting its backoff timer according to the network ' s contest situation. in addition, service differentiation can be achieved among flows with different qos requirements and thus the qos for medium access control in ad hoc network is improved

    通過在linux系統下利用networksimulator （ ns2 ）模擬工具對演算法進行計算機模擬分析，結果表明，與ieee802 . 11標準採用的二進制指數退避（ beb ）演算法相比，該文所提演算法更簡單、高效，它能在很大程度上提高adhoc網路通道接入的公平性，並能動態地提供服務區分，保障對多媒體等多種實時業務的傳輸需求，同時，演算法可以根據網路當前具體的競爭激烈情況，動態調整退避時間值，從而提高通道的利用率。
  5. The result with nei ' s index also identified it. and the genetic differentiation coefficient was 0. 3052, which showed the genetic differentiation had occurred among subpopulations of p. sibirica in the oasis - desert zone

    但叉毛蓬亞居群的遺傳分化系數（ g _ （ st ） ）為0 . 3052 ，說明亞居群間已有明顯的遺傳分化發生。
  6. Among the 4 populations analyzed by isozyme, the percentage of the polymorphic loci and the heterogeneity of 8201 was the highest of the 4 populations ; judged by differentiation index, genetic differentiation was found between populations

    從群體的分化指標來看，中國對蝦種群的各群體間有一定的遺傳分化。選育群淤ca 。 。
  7. Expanding rate and dissymmetry index was also employed to describe the spatial differentiation of urban land use growth. assisted by spatial analysis techniques of gis, the selection of allocation of the city and spatial differentiation in the process of urban spread was analyzed, so did the environmental condition effects to urban spread of jinan in order to discover function and rule environmental condition in the process of urban spread

    把不同時段城市擴展的特徵從雜亂的、大小不一、形狀不同、空間位置不同的城市擴展斑塊中提取出來，通過分析濟南市的城市選址與擴展過程，探討影響濟南市城市擴展的因素，揭示自然環境條件在濟南市城市擴展中的作用和規律。
  8. The second part is the analysis of droughts in chongqing, the contents of this part are made of droughts index, droughts type and grade differentiation method., droughts characteristics, droughts mechanism and background of formation of chongqing. it describes droughts of chongqing detailedly

    第二部分為重慶市旱災分析，這一部分以重慶市旱災指標、旱災類型及等級劃分方法、旱災特點、旱災成災機制與背景為內容，詳細對重慶市的旱災進行論述。
  9. By shannon index evaluation, 29. 25 % of genetic variation was between populations and the differentiation among populations was at a high level, in comparison with other species, such as s. grandis

    Shannon指數估測有29 . 25的遺傳變異存在於種群間，種群間的遺傳分化較高。
  10. Then, using the theory of the competitive of porter to analyze the insurance environment, at the same time turning to the herfindahl index to study the market structure of insurance industry. at last, this section discusses the inevitability of the choice of development and differentiation strategy

    波特的競爭理論，對太平人壽的產業環境進行了分析，並運用赫弗因德指數分析了壽險業的市場結構，在此基礎上，依據swot模型和ge矩陣模型，闡述太平人壽實行成長型戰略和差異化戰略的必然性。
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