隨機群體 的英文怎麼說
中文拼音 [suíjīqúntǐ]
隨機群體
英文
random population-
Rapd ( random amplified polymorphic dna ) technique was used to study the genetic structure and genetic differentiation of the natural population and the hatchery stock of chlamys farreri. amplifications with 20 10 - base primers under predetermined optimal reaction yielded 153 reproducible amplified fragments ranging from 200 to 3000bp. the mean proportions of polymorphic amplified fragments of natural population and the hatchery stock were 73. 2 % and 70. 6 % respectively, and the mean hetreozygosities of them were 0. 27 and 0. 26 respectively
在對20個野生櫛孔扇貝和20個養殖櫛孔扇貝的基因組dna的檢測中， 20個隨機引物共擴增出153條清晰可分辨的dna片段，片段大小在200 3000bp之間，其中野生種群和養殖群體多態性片段分別為112和108條，多態位點比例分別為73 . 2 %和70 . 6 % ，雜合度分別為0 . 27和0 . 26 。The range of immune response in a large random population of animals tends to fellow a normal distribution.
在一個隨機挑選的大的動物群體中，免疫應答的強弱是呈正態分佈的。Random mating population
隨機交配群體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。Three natural population of l. sagitta, add up to 62 individual, with 17 random primers, 128 polymorphic loci
箭葉橐吾的三個自然居群，總計62個個體，使用17個隨機引物，共擴增出128個多態位點。This thesis mainly discuss the practical value of the stereopsis test software in the ophthalmic clinical test of stereopsis, compare the difference between the traditional tno method and our software, measure the normal value of distant and near stereo acuity of health people. analyze the relation between the age and stereopsis, analyze the relation between the distance and stereopsis, test the near stereopsis development of young children with ophthalmic disease, test the influence on stereoacuity of the size of random dot
本課題主要探討自編立體視檢查軟體在眼科臨床立體視檢查中的應用價值；比較傳統的tno檢查法與本軟體檢查法的差異；測定正常人群各年齡組遠、近距離立體視銳度的正常值；分析年齡與立體視的關系；分析檢查距離與立體視的關系；測定斜視、弱視兒童的近距離立體視發育情況；測定隨機點大小對立體視銳度的影響。The main results are shown as below : 1. 80 individuals from 4 populations ( 20 from each population ) of argopecten irradians were analyzed by using 20 random rapd primers. 132 rapd bands ranging from 230 to 2800bp were recorded with an average of 6. 6 bands gained by per primer
採用20條隨機引物對4個群體80個個體（每個群體20個個體）進行了rapd群體遺傳多樣性分析，共擴增出132個位點，片段大小在230 - 2800bp之間，平均每條引物的擴增帶數是6 . 6條。Particle swarm optimization ( pso ) is inspired by social behavior of bird flocking or fish schooling. it is a population - based, self - adaptive search optimization technique. pso is simple in concept, few in parameters, and easy in implementation
粒子群優化演算法（ particleswarmoptimization ， pso演算法）源於鳥群和魚群群體運動行為的研究，是一種基於種群搜索策略的自適應隨機演算法，是進化計算領域中的一個新的分支。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In the genetic process of reproduction, crossover and mutation of the chromosomes in this method, these operators pr, pc and pm are produced randomly within some space, the scale of population and all kinds of genetic probability are also adjusted randomly so that the diversity individuals of population is ensured. the ga of dynamic population scale passes more information of paternal chromosomes to the offspring, which is beneficial to search the global optimization or quasi - global optimization
該方法在染色體進行繁殖、交叉、突變的遺傳過程中，在某一范圍內隨機選取p _ r ， p _ c ， p _ m ，動態調整種群規模，保證了種群個體的多樣性；選擇同父本分別進行三種遺傳過程使得父本染色體中有更多的信息傳遞給子代，這有利於搜索全域最優解或準最優解。( 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。( 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。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。Five natural population of l. virgaurea, add up to 100 individual, with 17 random primers, 132 polymorphic loci
黃帚橐吾的五個自然居群，總計100個個體，使用17個隨機引物，共擴增出132個多態位點。Results : twenty - five observational studies ( 14 cohort and 11 case control studies ) that measured blood or toenail selenium concentrations and 6 randomized trials that evaluated supplements containing selenium met our inclusion criteria
結果：有25個檢測血或趾甲中硒濃度的觀察性研究（ 14個群體研究和11個病例對照研究）和6個評價含硒補充劑的隨機試驗符合我們的選擇標準。A cohort study is a longitudinal study in which a specific population is studied over time
群體研究是在一段時間內對特定群體進行的縱向研究（隨機取樣） 。In the construction industry there has always been a mismatch between the research investment and construction expenditure and this has lead the industry to proceed on a scale with an inadequate understanding of many aspects of construction, such as, deterioration mechanism for structures that has often meant that due allowance has not been made for practical repair and maintenance. however, notwithstanding this situation there have been encouraging signs that within the last twenty years the transition from the conventional materials to the more advanced materials is being spear - headed by the construction industry where over 30 of all polymers produced are now utilised in that industry
水工建築物是社會各建築群體中的一類，是所在地環境的一個有機組成部分，隨著經濟社會的發展，水工建築物的外觀越來越受到重視.水工建築物的外觀質量控制主要在設計與施工兩個環節.外觀設計的質量表現在建築物滿足運行功能要求的情況下，既方便施工，又具有特色.施工的質量表現在建築物的實施效果.常見的外觀質量缺隙主要有蜂窩麻面、色澤不一、氣泡偏多、表面平整度差等，應從施工工藝、建築材料的質量等方面加以控制Transport traditional warehousing enterprises are established in the majority of the planned economy era, state - owned enterprises, these enterprises generally logistics infrastructure investment is insufficient, but has many years of experience in the logistics operation, and rules and regulations, good corporate reputation, warehousing and transport operations at the core provide relatively complete logistics services, with a strong ability to attract customers, and formed a basic customers in the community establish corporate image and brand effect of the logistics business remained relatively stable development of the situation, but as a modern logistics development, a modern logistics, long - span, dynamic and strong, can be divided into and the complexity of the advantages of traditional storage transport sector there are many issues, such as : management methods are backward ; the logistics facilities and equipment, lack of investment in facilities aging ; still lack the overall planning of a detailed and clear market orientation, lack of modern logistics management concept outdated marketing logistics, resulting in the mainstream enterprise customer groups scattered, low - level mobility of the large, it is difficult to retain the high - end customers ; enterprise systems and internal operating mechanism of the lack of vitality
留學解答資訊網:傳統的倉儲運輸企業多數是建立於計劃經濟時代的國有企業，這些企業一般對物流基礎設施投入不足，但是有多年的物流運作經驗，和規章制度，良好的企業信譽，以倉儲和運輸業務為核心，提供相對齊全的物流服務，具備了較強的招攬客戶的能力，形成了基本顧客群，在社會上樹立起企業形象和品牌效應，使物流業務保持著相對穩定發展的態勢.但是隨著現代物流的發展，較于現代物流，大跨度性、動態性強、可分性、復雜性等優點，傳統倉儲運輸業出現了許多問題，例如：管理手段落後；對物流設施設備的投入不足，設施老化；尚欠缺詳細的整體規劃和清晰市場定位，缺乏現代物流管理理念；物流營銷方式比較陳舊，造成企業主流客戶群體分散，級別較低，流動性大，難以保留中高端客戶；企業體制與內部運作機制欠缺活力。Firstly, we introduced the main idea, the formalized description, and the basic flow of co - evolution algorithm. then, from the point of pattern analyzation, we established the mathematics model of the multi - population co - evolution algorithm based on pattern replicator equation of the single population genetic algorithm, and made the theoretical analysis and compare for the method of best choice and the method of random choice of the co - evolution algorithm. we put forward a new method for the individual fitness evaluation, and validated the performance of the new method by the simulation experiment
首先，在介紹了協進化演算法的核心思想、形式化描述和基本演算法流程的基礎上，從模式分析角度出發，建立了基於模式復制方程的多群體協進化演算法數學模型，對協進化演算法中的最優選擇法和隨機選擇法進行了理論分析與比較，提出了一種新的個體適應度評價方法，並通過模擬實驗驗證了新方法的效率。In this prospectie, open - label, randomized, controlled trial, we enrolled 21 high immunological risk patients ( i. e., panel reactie antibody > 20 % or preious transplant )
在此前瞻性開放隨機對照試驗中，我們納入了21例免疫高危患者（例如，此群體反應性抗體> 20 %或者是再次移植患者）分享友人