subpopulation 中文意思是什麼

subpopulation 解釋
次級種群
  1. Study of lymphocyte subpopulation in peripheral blood and cerebrospinal fluid in patients with multiple sclerosis

    多發性硬化患者淋巴細胞亞群的研究
  2. Aflp was employed to characterize the genetic diversity within and between changxing subpopulation ( cxsp ) and xuanzhou subpopulation ( xzsp ). the results suggest that xzsp and cxsp have the similar origin, supported by both dendrogram analysis and geographic evidence

    本文利用aflp技術研究了宣州飼養種群（ changxingsubpopulmion ， xzsp ）和長興飼養種群（ xuanzhousubpopulation ， cxsp ）種群間和種群內的遺傳多樣性。
  3. Then, with the concept of accumulated failure probability, the proposed approach combines the least ? quares method with bayes " theorem, takes advantage of the parameter estimation for single weibull distribution to each derived subgroup data set, and estimates the parameters of each subpopulation. the estimates given by this paper also satisfy the maximum likelihood equation. the mean time to failure and the reliability estimation of the mixed population are given

    然後通過利用累積失效概率等概念，對每個導出的子組數據集聯合運用最小二乘法、貝葉斯定理和對單一威布爾分佈的參數估計法，從而得到每個子總體的滿足極大似然原理的參數估計，給出了該混合總體平均壽命和可靠度的估計。
  4. And through leslie matrix analysis, we deduced, except of the subpopulation at altitude 490m, the subpopulations of lilium tsingtauense will not die out if not been disturbed badly. we estimated the growth ability and resistance ability of both metapopulation and local population by use the method of quamitative analysis for population structura1 dynamics. the growth ability order is population l > population 2 > population 3 > population 5 > population 6 > metapopulation > population 4

    川叩iqu n了e ）復合種群研究摘要從種群年齡結構的穩定、衰退、增長概念出發，以種群結構參數為依據，運用加權法與條件概率乘法法則，定量椎導出衡量種群年齡結構及群落結構的動態指數，該方法克服了過去在植物種群結構動態比較評價中粗放的等級歸類劃分的缺陷，並能解決結構動態定量比較評價問題，因而認為有普遍使用的價值。
  5. Relationship between variation of t lymph - cell subpopulation and effect of bcg polyose nucleic acid in treating children ' s chronic diarrhea

    兒童白血病化療后並發敗血癥的臨床分析及治療
  6. Subpopulation differentiation of anthoxanthum alpinum poaceae along an altitudinal gradient detected by random amplified polymorphic dna

    技術研究阿爾卑斯山黃花茅居群內的遺傳分化
  7. Making use of the idea of the parallel genetic algorithms, presenting the adaptive multiple subpopulation evolutive strategy. presenting extinction and immigration strategy in order to avoid the similar or even same individuals appear. in order to enhance convergence velocity of reactive power optimization of the radial distribution system, combining the characteristic of the radial distribution system, a sensitivity analysis approach was build up for optimal selection of capacitors and mutation of transformer tap changer

    為了提高配電網無功優化的收斂速度，結合配電網的特點，提出採用簡單可行的靈敏度公式選擇無功電容補償器的安裝地點，並用靈敏度分析變異變壓器分接頭，使變異運算元的選取更符合配電網無功優化問題中關于調節變壓器分接頭的實際情況，減少了一些不必要的變異運算，使適應性和魯棒性加強；根據實際情況採用無功補償電容器的啟發式變異，使變異運算元的選取更符合無功優化問題中關于補償電容器的實際。
  8. Changes of lymphocyte subpopulation in patients with acute cerebral trauma

    腦外傷患者淋巴細胞亞群變化的研究
  9. At the same time, the age structure, time - specific life table, survivorship curve, fecundity schedule and leslie matrix were obtained through ana1ysing the demography and age struct ' ures of each subpopulation

    對種群年齡結構研究中，編制了種群靜態生命表、生殖力表，利用建立的矩陣模型預測了種群數量的動態趨勢，並進行了環境篩的分析，推斷了種群致危因素。
  10. Coefficient of gene differentiation ( gsr ) was 0. 1567, that was 15. 7 % of genetic variation among subpopulations, and 84. 3 % within subpopulation

    基因分化系數g _ st值和shannon多樣性指數分析結果均表明遺傳變異的大部分存在於亞居群內（約為84
  11. The application of subpopulation estimation method in business valuation

    子總體估計法在企業價值評估中的應用
  12. Method evaluation and preliminary application of antibody - coating immunomagnetic beads to isolate cd4 t lymphocyte subpopulation

    淋巴細胞亞群的方法學研究和初步應用
  13. Stem cell - like subpopulation has been isolated and identified from hematopoietic system malignancies and solid tumors, and defined as cancer stem cells

    在血液系統惡性腫瘤和實體瘤中均分離和鑒定出具有幹細胞特徵的細胞群，稱之為腫瘤幹細胞。
  14. The results showed that the survivorship curve of subpopulation at altitude 490m pertained to " li, " shape, while others were " i " shape

    結果表明，海拔490m附近的局部種群的存活曲線基本屬于型，而其它五個局部種群在幼齡期為型，而中齡期后表現為型。
  15. Total genetic diversity by shannon index was 0. 5240, mean genetic diversity within subpopulation was 0. 4437, genetic diversity within subpopulation accounted for 84. 67 % of ' total genetic diversity, and that among subpopulations accounts for 15. 33 %, that is 85 % of genetic variation within subpopulation, and 15 % among subpopulations

    為了從更大尺度和更深層次上理解生態過渡性與遺傳變異過渡性的聯系，我們對該過渡帶的梭梭、堿蓬和叉毛蓬三種植物的遺傳變異進行了rapd分析。結果顯d 。 ， 。
  16. Based on long - term site studies and all - around investigation, we ascertained six subpopulations of lilium isingtauense at different altitude, applied gps, gis to make certain the orientation of individuals and mensurated their heights in each subpopulation, and estimated the age class of lilium tsingtauense. at same time some environment factors have been test with which the species growth and development have relationship. lilium tsingtauense, which mainly distributes in mountain lao, is an endemic, rare and endangered plant in china

    我們選擇青島百合作為範例開展植物復合種群的研究，在長期全面調查的基礎上，選擇典型分佈區域設立了研究樣帶，確定了青島百合復合種群的六個局部種群，並圍繞個體生長階段進行了長期的跟蹤調查，應用gps對每株植物的空間位置進行了定位，測定了植株的高度，估測了植株的年齡等，在此基礎上將取得的調查資料與地理信息系統（ gis ）分析工具相結合，對青島百合復合種群進行了較為全面的研究。
  17. At first, the population sample data are split into subpopulation data sets over the whole test duration by using the posterior belonging probability of each observation to each subpopulation

    利用對每個子總體的每次觀察的后驗概率將整個檢驗期間的總體樣本數據分成子總體數據集。
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