種群循環 的英文怎麼說

中文拼音 [zhǒngqúnxúnhuán]
種群循環 英文
population cycle
  • 種 : 種名詞（姓氏） a surname
  • 群 : Ⅰ名詞（聚在一起的人或物） crowd; group Ⅱ量詞（用於成群的人或物） group; herd; flock
  • 循 : 循動詞（遵守; 依照; 沿襲） follow; abide by
  • 環 : Ⅰ名詞1 （環子） ring; hoop 2 （環節） link 3 （姓氏） a surname Ⅱ動詞（圍繞） surround; encircle;...
  • 循環 : circulate; circle; round; repeat; loop; period; recurrence; cycling; circulating; mixing; circula...
  1. The breeding population must cycle through a selection phase before each successive regeneration stage.

    每個后續世代更換之前，育種種群必須經過一個選擇循環。
  2. The bisonc burnup library is replaced to facilitate the computation of the burnup process with complicated burnup chains. we have made and evaluated the new library ( hendl ) which contains 139 kinds of nuclides with 175 groups for neutron and 42 groups for gamma, 15 kinds of neutron reactions and p0 - p5 expansion. the revised code which we call bus - id is more adaptable to the computation of hybrid reactor for its fuel breeding and the transmutation of the hlw

    並且在一維輸運及燃耗計算程序bisonc的基礎上，提出用新的數據庫（ hendl ）代替原有的bisonc數據庫， hendl庫考慮了更加全面的燃耗過程和多種燃料循環方式，通過修正讀入的核截面數據庫中的參數，考慮共振自屏效應，製作並且評估了新的含有139種核素、多種反應截面、 175群中子42群光子、 p _ 0 - p _ 5展開的中子反應數據庫，開發出新的程序bus - 1d ，使得更能適應聚變?裂變混合堆的燃料增殖、高放長壽命核廢料（ hlw ）的嬗變等計算的要求。
  3. Competition among the species is a continuing cycle in the animal food chain

    在動物的食物鏈上，不同種群之間的競爭是一個永不停息的循環。
  4. In paleoceanography, it plays an important role in determining the temperature of the paleo - sea surface, providing an understanding of the relationship between the primary paleoproduction and the carbon cycle, and testing the hypothesis of submarine methane release

    在古海洋學領域，表層海水溫度、海洋初級生產力的大小及其種群結構的變化對全球碳第循環的影響、海底甲烷釋放等關鍵性科學問題都需要有機生物地球化學積極參與。
  5. Abstract : mainly reviewed distribution of organic nitrogen, early diagenesis ( such as counteract - eutrophication, nitrification / denitrification et al. ), the controlling factors of nitrogen cycling ; and the relationship between nitrogen and ecological system in sediments in recent years, which may contribute to research the nitrogen marine biogeochemical process

    文摘:主要闡述海洋沉積物中氮的存在形式與分佈、氮的早期成巖和去營養化作用、硝化和反硝化作用以及氮與生物特定種群的關系等，探討了影響海洋沉積物中的氮循環的主要因素，分析了海洋沉積物中的氮與生態系的關系，以期對研究氮的海洋生物地球化學過程有所幫助
  6. In the thesis, the key technical problems utilizing genetic algorithm and random method to design any - cast routing algorithms are explored. we designed and realized the any - cast routing algorithm based on genetic algorithm. resolved the problems concerned in the algorithms, such as the code model, the original genus selection, the fitness function, the crossover strategy, the mutation regulation, and the algorithm ' s convergence, avoidance of dead loop etc. aim at different network scales we propose two any - cast routing algorithms

    論文探討利用遺傳演算法和隨機方法研究選播路由演算法的關鍵技術問題，設計實現了基於遺傳演算法的選播路由演算法，解決了演算法中的編碼模式、初始種群選擇、適應度函數、交叉策略、變異規則，以及演算法的收斂、路由死循環的避免和負載均衡等問題。
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