genetic coefficient 中文意思是什麼

genetic coefficient 解釋
發生系數
  • genetic : adj. 1. 遺傳（學）上的。2. 發生的，發展的；創始的。adv. -ically
  • 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 was suggested that eric - pcr could substitute for rapd in research related to the genetic identification and genetic diversity in auricularia and other edible and medicinal fungi : 2 to a certain extent, genetic differences among auricularia strains tested in this study did not have necessary relativity with their geographical origins respectively ; 3 in this study, genetic diversity in a. polytricha was higher than that in a. auricula : 4 in this study, a. fuscosuccinea had a higher homology to a. auricula than to a. polytricha ; 5 morphological characteristics validated the results from eric - pcr and provided a potential explanation for the higher similarity coefficient between a. auricular and a. fuscosuccinea ; 6 southern hybridization was employed by choosing a strain from a. auricula as a probe which hybridized with a. auricula and a. fuscosuccinea except a. polytricha, further confirming the veracity of the results from eric - pcr ; 7 in this study, isozyme analysis could not cluster the 7 strains from three auricularia species to different groups efficiently ; 8 2 strains from two auricularia species revealed high conservative degree and the restriction fragment patterns by 4 kinds of restricted enzymes showed no diversity

    本研究中，木耳屬2個種的2個菌株在its區域表現出較高的保守性， 4種限制型內切酶的酶切圖譜沒有顯示出多態性；增加內切酶種類及供試菌株數量，有可能獲得具有多態性的限制性內切酶酶切圖譜； 9本實驗中， its區域的真菌特異性引物與真核生物通用引物對于擴增效果無較大差異，擴增片段長度均為650bp左右； 10根據形態學實驗、 eric - pcr實驗以及southern雜交實驗的結果分析，紫木木耳屬種質資源的遺傳鑒定和遺傳多樣性評價耳極有可能是毛木耳種的一個變種; n .本研究中所用的gutc法是一種適用於木耳屬菌株基因組洲a快速提取的方法; 12 .傳統的形態學分類法和現代的分子生物學分類法，兩者的關系是相輔相成，互為驗證
  2. Through calculating annual expenses and analyzing investment risk, an optimization model firstly put forward. the coefficient of investment profit of the irrigation system, which includes pipe distribution networks, drop irrigation device, is minimized. the coefficient is optimization design ' s target function which is by the genetic algorithms to solve

    在系統優化方面，單獨作為一個模塊用vc + +實現，本文首次提出了以包括管網、灌水器、水泵、電機等設備在內的微灌系統的益本比最大為目標函數，利用遺傳演算法求解的方法。
  3. This study was conducted to examine the interrelationship of 10 seed vigor traits in 12 wheat genotypes through variance, co - variance and path coefficient analysis, to determine broad - sense heritability, and to estimate genetic advance under selection. the genotypes showed significant difference for all traits, except for percentage of normal seedling. genetic correlation between conversion efficiency of seed reserve, electrical conductivity with other traits were not significant, showed that selection for any of them might be possible without hampering any other traits. however path coefficient analysis indicated that conversion efficiency of seed reserve, seed reserve utilization ratio have strong direct effect in affecting seedling weight, and that mean germination time has significantly negatively correlated in affecting gi. moderate to high estimates of broad - sense heritability, genetic coefficient of variation and expected genetic advance were obtained for electrical conductivity, germination index, mean germination time, seed dry weigh, seedling dry weigh, seed reserve depletion ratio indicating the possibility for improving these traits

    本研究利用12個普通小麥品種對10個種子活力性狀的遺傳變異和相關研究，表明除正常幼苗百分率外，其餘種子活力性狀在品種間均存在顯著的差異.種子貯藏物質轉換效率、電導率兩個性狀間及與其它性狀均無顯著的遺傳相關，因此對他們的選擇不會影響到其它性狀.通徑分析表明幼苗干重主要取決于種子貯藏物質轉換效率、種子貯藏物質利用速率;發芽指數主要由平均發芽時間決定.電導率、發芽勢、幼苗干重、種子干重、發芽指數、種子貯藏物質消耗比率6個性狀表現中到高的遺傳力、遺傳變異系數和相對遺傳進展，指明通過遺傳育種手段改良這些性狀是可能的
  4. Then, we establish the finite element analysis models of the antenna in different structure layout, and obtain the corresponding frequencies and model shapes. finally, according to the importance of each object, we set up the model of multiple objects that aims to maximize the first natural frequency and minimize the mass. combining orthogonal experiment and variant weighting coefficient method, we formed an effective multiple objects optimized algorithm basing on the neural network and genetic algorithm

    本文首先詳細的敘述了天線結構的各組成單元，闡明了天線反射拋物面的形成原理；然後在ansys軟體環境中建立了不同結構布局下天線的有限元分析模型，分析計算了各種情況下天線的的固有頻率與振型；最後依據天線各指標的重要性，建立了以一階固有頻率最大、質量最小為目標的天線結構多目標優化設計模型，並基於神經網路和遺傳演算法，結合正交實驗和變加權系數技術，形成了一種有效的多目標優化演算法，在matlab平臺下實現了天線的結構多目標優化設計計算程序，求得了天線的最佳結構參數。
  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. The aflp fingerprinting of 20 seedlings of m. xiaojinesis with 8 ecor i - mse i primer combinations showed that m. xiaojinesis in natural population had a high degree of genetic identity, its genetic similar coefficient being 98. 92 %

    用8對ecor - mse引物組合對小金海棠家植實生群體內的20個株系進行了aflp分析。
  7. The paper creatively puts forward a kind of gradual adapt algorithm based genetic algorithms to dynamical find optimum excess air coefficient of boiler

    本文創造性地提出了一種基於遺傳演算法的逐步自適應尋優演算法，來動態地尋找鍋爐最佳過量空氣系數。
  8. Currently, the research methods can be classified into two main classes, that is, genetic linkage analysis and linkage disequilibrium analy - sis. the two methods explore recombination fraction and linkage disequilibrium coefficient correspondly which are used to measure genetical characters, moreover, statistical methods are used to execute gene mapping

    基因定位是人類基因組計劃（ hgp ）重要目標之一，目前研究方法主要分為兩大類：基因連鎖分析與連鎖不平衡分析。兩種方法分別藉助衡量遺傳性質的重組率與連鎖不平衡系數，並利用統計方法來進行基因定位。
  9. When applying genetic algorithm for optimal design of pre - stressed steel structure, ways of penalty coefficient is adopted for resolving stress and displacement restrains in this paper

    在應用遺傳演算法進行預應力鋼結構的優化設計時，本文對于預應力鋼結構的應力和位移約束的處理是採用了罰系數的方法。
  10. There are three key technologies for the optimization : 1, chromosome spaces string is shined upon the weight coefficient ; 2, the identification of fitness ; 3, genetic operation

    用遺傳演算法優化bp神經網路的關鍵有三點: 1 、染色體位串與權系數的編碼映射; 2 、適應度函數的確定; 3 、進行遺傳操作。
  11. 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
  12. There are two methods to optimize the parameters and structures of neuro - fuzzy networks : one is the differential coefficient optimization method based on gradient vector ; the other is based on modern optimization methods, such as genetic methods, simulated annealing etc, in which, the researches on genetic methods are most prominent

    目前，對模糊神經網路的權值或結構進行優化的方法有兩類：一類是基於梯度向量的導數優化方法；第二類方法是基於現代最優化技術的非導數優化方法，如遺傳演算法、模擬退火演算法等，其中以遺傳演算法的研究最為突出。
  13. The accurate computing method can solve internal force of reinforced earth and tensile force of strip by fem, then compute minimum safety coefficient and slip plane corresponding by genetic algorithm ( ga )

    這種精確的計算方法創造性的結合了有限元技術和遺傳演算法計算邊坡的安全系數。通過有限元求解路堤的內力以及筋帶的拉力，應用遺傳演算法搜索最小的安全系數和其對應的滑動面。
  14. 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。
  15. Similarity coefficient and genetic distances between two arbitrary individuals were caculated according to the data of experiments, the pedigree was constructed by two means ( they were upgma and parsimony ), and genetic diversity was discussedbased on selecting the best conditions of pcr with opg and opa primers from operon company, we obtained 163 bands using 24 random primers. in other words, 163 sites in crested ibis " genome were detected. the bands from 23 primers showed polymorphism. minimurn of polymorphic ratio was 0, maximum was 85. 71 %, and average was 48. 99 %. in the population which was composed by 37 individuals, most of genetic distances between two arbitrary individuals were less than 0. 1. the results showed that the degree of similarity among crested ibises was high while genetic diversity in the population was low accordingly

    我們在對operon公司opg系列和opa系列引物進行優化篩選的基礎上，用24條隨機引物共擴增出163條譜帶，即檢測了朱?基因組中的163個位點，其中23條引物的擴增結果具有多態性；譜帶的多態比率最小為0 ，最大為85 . 71 ，平均為48 . 99 ；在由37隻朱?組成的種群中，任意兩個個體之間的遺傳距離絕大多數在0 . 1以下。這些結果表明，目前朱?個體間的相似程度很高，種群的遺傳多樣性水平較低。
分享友人
分享到 Line

分享到臉書