隨機成群的 的英文怎麼說

中文拼音 [suíjīchéngqúnde]
隨機成群的 英文
random clumped
  • 隨 : Ⅰ動詞1 （跟; 跟隨） follow 2 （順從） comply with; adapt to 3 （任憑; 由著） let （sb do as he li...
  • 機 : machineengine
  • 成 : Ⅰ動詞1 （完成; 成功） accomplish; succeed 2 （成為; 變為） become; turn into 3 （成全） help comp...
  • 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
  • 的 : 4次方是 The fourth power of 2 is direction
  • 隨機 : random stochasticrandom
  1. Because they are fascinated by mathematics, logic, and science and have taken on the rational madness of their scientific confreres, we read much these days about information theory and its relation to the psychology and composition of music ; about statistical probabilities, stochastics, and the markoff chain and their compositional possibilities, about group and set theory as applied to serial music ; about aleatory and indeterminacy and entropy

    因為他們迷於數學，邏輯，與科學，將理智狂當成他們科學同伴;我們最近讀了很多，關于資訊理論及其與心理學及與作曲的關系;關于統計或然率，隨機，及馬可夫?及其譜曲可行性;關于群組與集合理論之應用於系列音樂;關于偶發性，不確定性，與熵
  2. ( 2 ) it is the tactics of keeping the seed storehouse under the adverse environment that seed spreading has the dispersiveness of time, space heterogeneity of the seed spreading and the dormancy in summer, ( 3 ) the seed coat of lepidium pertoliatum l. and lepidium apetalum willd. make the seed bigger, which is useful to promote the seed sprouting and developing of seedling by absorbing the around moisture

    具體表現為： （ 1 ）植物的生長發育以及植物的生長節律，均受到環境的影響； （ 2 ）種子的分批成熟，種子傳播具有空間隨機性以及種子具有夏季休眠的特性，都是種子在惡劣環境下保存種子庫的策略（ 3 ）抱莖獨行菜和獨行菜的種衣一方面可以使種子大粒化，另外還利於吸收水分有助於促進種子萌發和幼苗發育，這些對種群的延續具有重要的意義。
  3. Reliability assessment of xi - luo - du underground water - power plant : the results have been used by the cheng - du surveying, design and research institute for the preliminary design ; （ 2 ） the stress and strain analysis for the xiao - guan - zi sluice and its foundation : the report has been applied for the reinforcement of the foundation ; （ 3 ） the thermal control procedure for the no. 7 - 14 power plant dam segments of the three gorge project ： the research report provides the effective and efficient methods for the controlling of the temperature field in the mass concrete structure ; （ 4 ） the software system development for the long - term monitoring for dikes ： the software can automatically give the results of the seepage field and the probability of soil piping of dikes and underground ; （ 5 ） reliability assessment of xiang - jia - ba underground water - power plant : the results have been used by the zhong - nan surveying, design and research institute for the preliminary design ； （ 6 ） fatigue reliability estimation of shipping berthing pillar : the results give the optimized design scheme and prediction of the structural age ; （ 7 ） 3 - d static and dynamic stochastic finite element analysis for the strength, stability and thermal control problem for xi - luo - du project

    溪洛渡水電站超大型地下洞室群圍巖穩定的安全可靠性分析：被成都勘測設計研究院應用於比選報告及可行性論證中； （ 2 ）小關子水電站攔河閘壩及地基的應力應變分析：被成都勘測設計研究院應用於地基加固處理方案； （ 3 ）三峽廠房7 # - 14 #壩段溫控並縫措施研究：為廠房壩段並縫方案的可行性提供了依據； （ 4 ）堤防工程體系的長期監控預報預警決策系統開發：為監控、預測預報堤防滲漏管涌破壞提供分析軟體； （ 5 ）向家壩地下洞室群圍巖穩定的安全可靠性分析：被中南勘測設計研究院應用於初步設計方案中； （ 6 ）靠船墩的疲勞可靠度研究：為廣東航運規劃設計院的靠船墩優化設計和加固提供依據； （ 7 ）溪洛渡高拱壩壩體壩基（壩肩）強度和穩定的三維靜動力隨機有限元分析及可靠度計算：為溪洛渡重大工程壩體的靜動力安全穩定性及溫控方案提供依據。
  4. Recently years, there is a new optimization method named genetic algorithms ( ga ) which is based on the numbers of genus groups. this method is a kind of random searching method which simulated natural selection and evolution. compared with traditional optimization method, genetic algorithms has two notable characters. one character is latent parallel and the other is seaching in the whole area. and genetic algorithms has some advantage which traditional method do n ' t have, for example, in genetic algorithms we did n ' t need the calculation of grade

    遺傳演算法[ geneticalgorithms ，簡稱ga ]是近些年來出現的一種模仿自然選擇與進化的基於種群數目的隨機搜索演算法，是優化領域的一個新成員。與常規優化演算法相比，遺傳演算法具有隱含并行性和全局搜索特性這兩大顯著特徵，並具有一些常規優化演算法所無法擁有的優點，如不需梯度運算等。
  5. Methods a multi - stage stratified measure was carried out to select 6 597 families from eleven counties ( cities ) in hubei province in 2003

    方法利用第3次國家衛生服務調查問卷，採用多階段分層整群隨機抽樣方法，對全省11個縣市（區） 6597個樣本住戶的家庭成員進行入戶問卷調查。
  6. The search space is divided into many small areas, and each area is given a certain pheromone value. according to the state transition rules, the artificial ants move to the next solution which is generated randomly or calculated by particle swarm optimization. local search strategy is also added into psaco so that the search speed and precision is enhanced

    該演算法首先將連續對象定義域平均分成許多邊緣相互重疊的小區域，區域的稠密程度決定了演算法解的精度，每個區域賦予一定的信息素值;螞蟻根據狀態轉移規則在隨機生成的可行解與利用微粒群演算法得出的可行解之間選擇下一步要去的位置;引入局部尋優策略，加強近似最優解鄰域內的局部搜索，提高搜索速度和精度。
  7. Microsatellite dna is among the most efficient class of molecular markers due to their hyper - variable and co - dominant nature with relatively high abundance and random distribution in the genome, and have been applied to a variety of fields including population differentiation, kinship analysis, linkage analysis, and evolutional and ecological studies

    摘要微衛星dna由於具有高度多態性、共顯性遺傳、基因組中含量豐富且隨機分佈等特點，目前已成為最有效的分子標記之一，並應用於種群分化研究、血緣分析、基因連鎖分析、進化以及生態學研究等許多領域。
  8. By sun, bo ( major : marine biology ) directed by professor zhang, guofan and dr. liu, xiao population genetics of four argopecten irradians cultured populations was analyzed by using random amplification polymorphism dna ( rapd ) techniques. and partial dna sequences of the internal transcribed spacers ( its ) from four representative samples ( one sample represent for each population ) were amplified by pcr and sequenced in order to stress the phylogenetic relationships of the four populations. besides, by rapd technique, two argopecten irradians families were studied to examine whether the hybridization experiments were successful and which family was more suitable to be materials in future genetic linkage map construction

    本文以海灣扇貝4個養殖群體為研究對象，採用隨機引物多態性dna （ rapd ）技術進行了群體遺傳學研究，並嘗試使用4個群體中代表個體的內轉錄間隔區（ its ）序列比對分析結果作為參考；另外，本文還運用rapd技術對人工異體交配的2個海灣扇貝家系的雜交成功率進行了分析，均獲得成功證實，並評估了兩個家系構建遺傳連鎖圖譜的潛力。
  9. The main achievements are as follows : according to the stochastic mechanism, a novel ant colony optimization algorithm with random perturbation behavior ( rpaco ) is presented in this paper. the new algorithm includes two important aspects : a amplify factor formulated by inverse exponent function is developed, which is used to avoid premature, on the other hand, corresponding transition strategy with random selection and perturbation behavior is designed, which is designed to prevent the algorithm from stagnating

    主要成果有：從隨機優化技術出發，提出了一種新穎的隨機擾動蟻群優化演算法，該演算法包含了兩個重要方面：一是提出了採用倒指數曲線來描述的放大因子，可以有效地防止早熟；二是設計出了相應的隨機選擇策略和擾動策略，避免演算法陷入停滯。
  10. Taxus chinensis var. mairei population in form. taxus chinensis var. mairei community using six aggregate indices ( c, i, i m, pai, ca, ), then analyze the causes of evolved pattern. the results indicated that the distribution pattern of seedling were all clumped in every plot, however, the distribution patterns of sapling, media tree and mature tree were mostly random. the trend of diffuse of form

    ）回歸分析法研究了南方紅豆杉林中南方紅豆杉幼苗、幼樹、中齡樹和成樹的分佈格局及動態，並分析格局形成原因，結果表明，各樣地南方紅豆杉種群幼苗均成聚集分佈，幼樹的分佈格局偏向于隨機分佈，而中齡樹與成樹則為隨機分佈，從幼苗到成樹，隨機擴散的趨勢十分明顯。
  11. 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。
  12. Pcr - based analysis method was carried out in the following study. dna amplification by pcr in cgg repeats were performed on 154 people as normal control ( 73 males and 81 females ) and 23 members from four x - linked mental retardation ( xlmr ) families. after electrophoresed on a 6 % - denaturing polyacrylamide gel ( acr : bis = 19 : l ), genotypes of the objects were determined by analyzing pcr products

    本研究採用較以往更為簡便有效的pcr技術方法，對隨機抽取的154人的正常群體（男性73人、女性sl人）及來自四個智力低下家系的23名成員進行了fmr基因cgg重復序列的擴增，利用變性聚丙烯酸胺凝膠電泳技術對不同等位基因類型進行分離和統計。
  13. In this paper, we study the performance of input - buffered atm switching with window - access scheme and output - grouping architecture. the close - form formulae of maximum switch throughput, mean cell delay and cell loss probability are obtained by probability generating function approach. the accuracy of theoretical analysis is verified by computer simulations and results show that the maximum switching throughput will reach 99 % under random uniform traffic when the window size and the group size are 4 and 16 respectively

    本文提出了具有組合的窗口接入和線群輸出結構的輸入緩沖atm交換網路並對其性能進行了研究.通過概率生成函數方法得到了計算該交換網路最大吞吐率，平均信元時延和信元丟失率的封閉表達式，並通過計算機模擬實驗驗證了理論分析的精確性.研究結果表明，在隨機均勻業務下，當窗口尺寸和輸出群尺寸分別為4和16時，最大吞吐率可達到99
  14. As randomness, nonlinearity, and difficulty to setup an exact mathematics mode, using intelligent control methods to elevator group is a necessary

    由於電梯群控系統具有隨機性、非線性，並且難以建立精確的數學模型，運用智能控制的方法成為可能和可行。
  15. With the development of computer networks, tele - education which is based on computer networks attracts more and more people, and virtual classroom is the heart of it compared with the traditional education, virtual classroom breaks the limit of time and location, and meets " study all life " in the information age

    隨著計算機網路技術的發展，基於網路的遠程教育已成為人們關注的熱點，而虛擬教室則是遠程教育的核心部分。在網上虛擬教室中，參與教學活動的成員構成了群體，群體成員的交互構成了協同行為。
  16. Generating original population via the ergodicity of chaotic sequence, the optimized results generated from relative difference quotient algorithm are added to the original population to improve its performance

    利用混沌序列的隨機遍歷性生成初始種群，並把相對差商演算法的優化解加入到初始種群中，改善初始種群的性能。
  17. The genetic differences between any two randomly selected individuals in one socially recognized population account for 85 percent of the variation one might find between people of separate populations

    從一個社會結構成熟的族群里隨機選出兩個人，他們之間的基因差異，就已經達到兩個不同族群間基因差異的85 % 。
  18. ( 2 ) stochastic theory and other correlative theories are used to analyze iga, and the immune extend population sequence formed by iga is proved to be an aperiodic irreducible ergodic markov chain. next, the global convergence of iga is proved

    2 、利用隨機過程理論及相關理論對免疫遺傳演算法進行分析，證明了由免疫遺傳摘要演算法形成的擴展免疫種群序列的強馬爾可夫性，同時還進行了不可約性、非周期性、遍歷性等性質的研究。
  19. But, pso convergence ' s speed become slow in latter iterative phase, and pso is easy to fall into local optimization. at present, some scholars improve base pso mostly using 3 methods : disperse algorithm, increase convergence speed, enhance particle ' kinds. in the paper, i put forward 2 methods aiming at local best resutl but not whole best result. i modify base pso using the last method. some scholars put forward times initializations, so i select best result after circulating some times to be a parameter of formula. first, put particle into some small region, and ensure every region having one paticle at least. second, every region ' s particle has probability transfer other regions. although increase running time, enhance particle ' kinds, decrese the probability of convergence far from whole best result. nerms ( network educational resource management system ) is one of the research projects in the science and technology development planning of jilin province. the aim of nerms is to organize and manage various twelve kinds of network educational resources effectively so that people can share and gain them easily and efficiently, so as to quicken the development of network education

    但粒子群演算法仍存在如下不足:首先在多峰的情況下，粒子群有可能錯過全局最優解，遠離最優解的空間，最終得到局部最優解;其次在演算法收斂的情況下，由於所有的粒子都向最優解的方向群游，所有的粒子趨向同一，失去了粒子間解的多樣性，使得後期的收斂速度明顯變慢，同時演算法收斂到一定精度時，演算法無法繼續優化，本文對原始粒子群演算法提出了二點改進方案: 1 .演算法迭代到一定代數后，把此時找到的全局最優解當作速度更新公式的另一參數（本文稱之為階段最優解）再進行迭代; 2 .每次迭代過程中除最優解以外的每個粒子都有一定概率「變異」到一個步長以外的區域，其中「變異」的粒子在每一維上都隨機生成一個步長。
  20. The random selection of a cluster member is the first mechanism used to ensure even request distribution

    集群成員的隨機選擇是確保請求均勻分佈所使用的第一個機制。
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