population genetic basis 中文意思是什麼

population genetic basis 解釋
群體遺傳基礎
  • population : n. 1. 人口；人口總數；全體居民；人口的聚居。2. 物的全體[總數]；【生物學】蟲口；種群（量）；群體；族，組，個數；【統計學】對象總體，全域。3. 【物理學】布居；密度。4. 〈罕用語〉殖民。
  • genetic : adj. 1. 遺傳（學）上的。2. 發生的，發展的；創始的。adv. -ically
  • basis : n. （pl. bases ）1. 基礎；基底；臺座；【地質學；地理學】坡基。2. 根據，基準。3. 主要成份；主藥。4. 【數學】基。
  1. In the present study, aflp ( amplified fragment length polymorphism ) markers was used to examine population of abies yuanbaoshanensis in order to understand the level of population genetic variation and genetic structure. the result would help to evaluate its evolutionary potentiality and the degree of being endangered and could provide scientific basis for making right protection strategy. high - quality dna was extracted using ctab method from those tender leaves of forty - three fully - developed trees in population abies yuanbaoshanensis

    本研究選用一種高效的檢測遺傳變異的分子標記? ? aflp技術來分析元寶山冷杉種群的遺傳多樣性，旨在了解該種群在分佈區內的遺傳變異水平和遺傳結構情況；研究結果將有助於更清楚地認識這一瀕危類群的生存潛力和瀕危程度，而且可以為制定何種挽救和保護措施提供科學的依據。
  2. Qiupuriver mandarinfish is a local breed under selecting and a famous brand of chizhou city, anhui province, which has a big reproductive population and culturing on a large scale ; it also possesses of sound features such as high growth rate and strong resistance. but none study has been carried on its genetic basis before. study on the genetic variation of qiupuriver mandarinfish, changjiang mandarinfish and wanfuhu mandarinfish with isozyme and rapd markers has important content, at the same time, it will bring new material to selection and application of the qiupuriver mandarinfish

    秋浦河鱖魚是我省選育中的一個地方品種，具有生長快、抗逆性強等優良特性，已形成一定的繁殖與養殖規模，並成為我省池州市重點推廣的名牌產品；但對其遺傳基礎的研究尚屬空白，本試驗對秋浦河鱖魚、長江鱖魚和萬佛湖鱖魚進行同工酶和rapd分析，以便為秋浦河鱖魚的選育與推廣提供基礎資料。
  3. After a short - term load forecasting method based analogous and linear extrapolation is proposed, the load forecast and the priority of equipment action are led into static reactive power optimization. the aim function is constructed for the practical situation of power system. on the basis of traditional genetic algorithm the fitness function and the holding of population diversity are improved

    在提出基於相似日和線性外推的短期負荷預測新方法的基礎上，將負荷預測和設備動作優先級引入靜態無功優化中，並結合電網實際情況，構造了實用的目標函數，對遺傳演算法的適應度函數和群體多樣性的保持進行了改進，採用鄰域搜索運算元增加遺傳演算法的局部尋優能力。
  4. Using molecular markers to research hererosis in crops, for example, plotting out heterotic population, constructing heterotic mode, predicting heterosis, and studing the genetic basis of heterosis, were reviewed in detail

    綜述了分子標記在作物雜種優勢群劃分和雜種優勢利用模式構建、雜種優勢預測以及雜種優勢遺傳基礎研究中的利用現狀。
  5. This thesis is focused on the following flve topics. first, comparative analysis of binary encoding and float encoding is made, the advantage and disadvantages of two encoding modes and their influence on genetic operators are clarified, thus the basis for reasonable description of the problems is provided. secondly, as genetic operators have an important influence on performance of algorithms, this thesis demonstrates that the simulated binary crossover can keep the mean of population unchanged, and under some conditions

    作者在論文期間的工作主要集中在以下幾個方面：對遺傳演算法中的二進制編碼和浮點數編碼進行對比分析，闡明兩種編碼方法的優缺點和對遺傳操作運算元的影響，為合理地描述待解決的問題提供一定的依據；遺傳操作運算元對演算法的性能有重大的影響，文中對模擬二進制交叉運算元對群體的分佈影響進行了分析論證，得出模擬二進制交叉能保持群體的均值，並在滿足一定條件下使群體方差變大的結論；如何保持群體的多樣性，一直是進化演算法研究的主要內容。
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