近交群體 的英文怎麼說
中文拼音 [jìnjiāoqúntǐ]
近交群體
英文
inbreeding population-
4. using recombinant inbred line ( rjl ) of rice derived from ( zhenshang 97bx minghui 63 ), permanent f2 population was constructed by random mating among ril lines
利用源於（珍汕97b明恢63 ）的水稻重組近交系（ ril ） ，進行系間隨機交配，獲得永久f _ 2群體。And no fervour can be as electric as when dr. jano rubs his crotch against amalia, sending her into an unexpectedly delirious epiphany
一群耳鼻喉專科醫生來到開交流會，其中一個竟在圍觀街頭表演時用下體湊近愛瑪。And smooth and effective knowledge transfer and exchange are the prerequisite of interactive learning within enterprise cluster, and interactors ’ proximity - based coupling is the important guarantee in knowledge transferring and exchanging smoothly. actors ’ proximity may be decomposed into geographical, social and indus - trial aspects in network for cii within regional enterprise cluster
區域企業集群創新實質為耦合互動創新，這是因為區域企業集群創新的形成是集合主體交互學習合作競爭的結果，主體間交互學習的實現是以區域企業集群內順暢而有效的知識轉移和交流為前提的，而企業集群中主體間的接近性耦合是知識順暢轉移和交流的保證。Twenty f1 combinations crossed among 5 varieties and strains different in fiber properties according to complete diallel crossing design were used to evaluate the heterosis and gene action of boll weight and lint percentage in high quality fiber property varieties in upland cotton in 1998 1999 for two year successively at nanjing. it was indicated that there existed small interactions with the environmental factors without maternal effects and the additive gene effect was in chief, attaining to 51. 2 % and 65. 4 % respectively for boll weight and lint percentage. the dominant effect was also in higher rate, 32. 6 % and 16. 8 % respectively. the population mean heterosis of boll weight and lint percentage over the mid - parental mean were relatively prominent 13. 3 % and 3. 5 % respectively in extreme significance. however, boll weight showed no significantly surpassing parental f1 heterosis over the better parent based on population mean ( 2. 0 % ) ; while the lint percentage expressed significant negative heterosis value ( - 2. 1 % ). the gene actions were in conformity with the heterosis expression. it was shown clearly that the f1 combinations crossed between parents with similar performances had relatively high dominant effects and significant positive f1 surpassing parental heterosis ( f1 heterosis over the better parent ) ; while no f1 combination crossed between the parents with prominent mutual difference surpassed the higher parent in yield components, which indicated that among those parents with less difference and close relationships, there still existed sufficient genetic variation or certain mechanism for creating variation and achieving greater advances in breeding. correlation analyses also indicated that there still existed severely undesirable negative correlation between yield and fiber properties as well as the difficulties for their simultaneous improvements
利用5個具有不同纖維品質性狀的品種（系）配製完全雙列雜交組合20個，通過親本和f1的2年隨機區組試驗發現產量性狀的鈴重和衣分與環境的互作效應小，不存在母體效應，並以加性遺傳效應為主，分別占表型方差的51 . 2 %和65 . 4 % ;顯性遺傳效應所佔的比率也較高，分別為32 . 6 %和16 . 8 % .鈴重和衣分的群體平均優勢較大，分別為13 . 3 %和3 . 5 % ，達到了極顯著;鈴重的超親優勢為2 . 0 % ，不顯著;衣分為顯著的負值（ - 2 . 1 % ） .遺傳分析與雜種優勢結果一致.具體表現在產量性狀上，親本相當配製的組合雜合顯性較高，其超親優勢正向顯著，而極值親本（差異較大）所配組合沒有超過高親的.這表明親本差異小、親源關系較近的親本中仍然存在足夠的遺傳變異或某種機制以創造變異使育種取得更大的進展.相關分析表明了仍然存在嚴重的品質與產量的負相關，遺傳改良的難度較大This paper introduces the entropy of the genepool and the genetype of a pair alleles population in inbreeding, and demonstrates the character of genetype entropy, the character of inter - zygote ' s inter - entropy, and the relation between the latter and coefficient of inbreeding in the generation change
摘要研究了在近親繁殖下一對等位基因群體的基因庫信息熵和基因型信息熵，並討論了在世代交替中基因型信息熵的性質、配子間的互信息性質及其與近交系數的關系，並定義了配子間的近交關聯信息系數。( 3 ) inbreeding population to the population that the inbreeding coefficient is f, the population information entropy is a increase function when reach equilibrium in random matting system, that is when fix the f, the population have the largest information entropy ; population information entropy large or equal to the gene distribution entropy, less or equal the two time of gene distribution entropy
（ 3 ）近親繁殖群體證明了近交系數為f的群體在隨機交配下達到平衡的群體信息熵是f的增函數，即f固定時，其值最大；群體信息熵大於等於基因庫信息熵，小於等於基因庫信息熵的兩倍。The inbreeding index and genetic distance based on the gene frequencies were 0. 0283 and 0. 028
根據基因頻率計算出兩個群體的近交系數為0 . 0283 ，遺傳距離為0 . 028 。This paper deduces the associated probability distribution of a pair alleles population between a female genotypes and its descendant genotypes in inbreeding, defines the associated genotype entropy between a female parental genotypes and its descendant genotypes in inbreeding, demonstrates its character and interpretation of informatics in the generation change, and tests them by imitation of computer
摘要推導出在近親交配下一對等位基因群體母子間的基因型聯合概率分佈列；定義了在近親交配下母子間的基因型聯合信息熵；討論了在世代交替中母子間的基因型聯合信息熵的性質及其信息學解釋；並用計算機模擬驗證。57 % between the chinese and north american populations, 55 % between the chinese and european populations, and 46 % between the european and north american populations
系統樹圖清楚地表明中國和北美群體的遺傳關系比較近，而歐洲和北美的關系最遠，這同遺傳交配實驗的結果完全一致。Method : the main applied method in this reseach : library classification stat and analyse method deophi 6. 0 programme sql server 2000 data processing rusult submit a set of the reader reading query analyse system in reading submit a set of the analyse report for readers in fujian college of traditional chinese medicine ' s library recent years. conclusion the system is exploited for fujian college of traditional chinese medicine ' s library. it is constitutive of " query module " and " reading average module ". it will be used to query and analyze status that reader borrow books from individual, department whole
開發一套「讀者借閱查詢分析系統」今提交一份近幾年（ 1997一2002 ）福建中醫學院讀者圖書借閱狀態分析的報告結論:本研究提交的「讀者借閱查詢分析系統」包括: 「查詢模塊」 ， 「人均借閱量對比分析模塊」 ，實現從個人、系別、讀者全體的角度分別對各類讀者（學生、研究生、教工）圖書借閱量、借閱傾向及不同類別讀者群的人均借閱量進行查詢、統計，並以圖、表的形式表達出來。It is necessary for a species " adaptation and evolutionary potential to keep genetic variety at a relative level. genetic diversity in the population must not be lost furthermore and gene exchange among individuals should be enhanced as much as possible to avoid extinction of crested ibis
一定程度的遺傳變異性是維持種群的適應力與進化潛力的必要條件，為使朱?免於滅絕的厄運，必須避免其種群遺傳多樣性的進一步喪失，並盡可能增加個體間的基因交流，最大限度地避免近親繁殖。The strains which were normal with the biochemical markers analysis had the identical fingerprints and p was above 2. 2x10 - 1
採用dna指紋圖法對國內已知的7個品系9個近交系大鼠群體進行了分析。On the basis of research on market efficiency, index funding, clustering algorithm and time factor, 295 stocks in shenzhen stock market are selected as the research objects. clustering algorithm with time factor is applied to choose portfolio population, and then single index model is used to calculate the weight of every individual stock in order to construct an index proxy portfolio to track shenzhen composite index
本文在對市場有效性、指數化投資、聚類演算法和時間因子等有關理論進行分析研究的基礎上，以在深圳證券交易所上市的295隻股票為研究對象，使用加入時間因子的聚類演算法選擇證券投資群體，再利用單指數法構造市場指數代理證券組合，以此來逼近深圳綜合指數。The hetreozygosity and proportion of polymorphic loci of hatchery stock were lower than that of the natural population, which could be related to the small size of the cultured stock and the higher possibility of inbreeding
養殖群體的多態位點比例和雜合度都低於野生種群，這與人工累代養殖過程中，群體較小，近交機會增加有關。This thesis suggests a process considered minimizes the population size as similar individuals occur in the fitter members of the population, which helps reduce the execution times for ga by removing the redundancy associated with the saturation effect found in the later generation. this thesis uses a method that adds dynamic penalty terms to the fitness function according to the optimal degree of solutions, so as to create a gradient toward a feasible suboptimal or even optimal solutions. on the basis of the difference of the biggest and the smallest of fitness of individual, modifying the fitness function in order to convergence is a satisfaction
動態調節種群大小，去掉遺傳演算法在迭代後期搜索產生的過多相似個體，達到減少計算時間的目的；按照解的優劣程度給適應度函數增加一個在ga搜索過程中動態改變的可變罰函數，給搜索最優解創造一個梯度，使遺傳演算法收斂到可行的較優解或最優解；根據適應度值最大和最小個體的差修正適應度函數，使適應度函數值適中不容易造成收斂太快、局部收斂或根本不收斂而變成隨機搜索；為了避免「近親繁殖」採用競爭擇優的交叉操作；利用并行遺傳演算法的思想，提出一種自適應多子種群進化策略；提出人口汰新政策來解決類似甚至相同的個體的情況發生。Systematic research across multiple subjects such as biology, chemistry and physics will be carried out, in order to understand the population variation of hab species in coastal china seas, to understand the mechanism of hab damage, to elucidate the ecological and oceanographical mechanism of hab construction, thereby provide scientific foundation for efficient methods for " hab prevention, control and treatment ", and contribute to the global morden theoretical system of hab ecology and oceanography
通過生物學、化學和物理海洋學多學科交叉綜合研究，掌握我國近海赤潮生物種群動態變化規律，了解其危害機理，闡明赤潮高發區赤潮形成的生態學、海洋學機制，為建立"預防、控制和治理赤潮"的有效方法提供科學依據，同時也為發展全球赤潮生態學和海洋學現代理論體系作出貢獻。During this long period, the eight banners formed their own management methods, their continuity of political and economic interests in communication and their similarity in social life which made it a community distinguishable from " min ren "
在這漫長的過程中，八旗獨特的管理方式，以及他們在交融過程中形成的政治、經濟利益的一致和社會生活的相近與相同，使八旗成為與「民人」的顯著差別的社會群體。The architecture applies quantilized trade - based credit scheme, which easily solve the problems like asymmetry of interest and collusion that are difficulties for reputation - based schemes. moreover, the monetary - like trust scheme may smooth the deployment of the future commercial p2p applications. the architecture first groups the peers, according to the underlying topology information, into cc ( candidate community ) and then groups the peers that are within the same cc into the ibc ( interest - based community )
本課題價值還在於:體系架構設計基於擴展的gnutella協議之上，便於在現有的系統上進行快速擴展應用;採用了基於交易的量化的信譽方案，既可以解決傳統的基於名譽的信任方案所難以處理的非對稱興趣問題和合謀問題;同時採用了接近現實世界貨幣體系的量化方案，以便於今後商業化p2p應用系統部署的平穩過渡;體系架構將節點根據拓撲信息劃分成不同區域的候補群體cc （ candidatecommunity ） ，並在實際運行中在cc的基礎上形成不同興趣的ibc （ interest - basedcommunity ）群體。That means genetic diversity in crested ibises can be sustained, and on the base the populations " adaptive capacity and evolutionary potential should be promoted. in this way, the rare bird will be protected more successfully
根據譜系而在繁殖酉己付時盡可能地避免近交，將增進個體間的基因交流，使種群的遺傳多樣性得以維持，並有可能提高其生存能力與進化潛力，最終達到更好地保護這一稀世珍禽的目的。分享友人