population of samples 中文意思是什麼

population of samples 解釋
抽樣總體
  • 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。
  • of : OF ＝Old French 古法語。
  • samples : 采樣；樣本；樣條
  1. This paper concerns studies on rhizobia in symbiosis with important legume soybean and peanut crops in china, following : 1 ) summarized bio - diversity of rhizobia, including indigeneous population, isolation frequency, strain type, distribution, and strain - host promiscuity and compatibility from large and small samples. 2 ) reviewed symbiont improvement in both sides of rhizobia and hosts, involving selection of effective rhizobial strains, evoluation and utilization of the host germplasm for symbiotic properties, and selection of the both sides for special characters. 3 ) discussed the subject on the rich symbiont germplasm resource in china and on further research being necessary to exploitation and utilization of the benificial germplasm

    針對我國主要豆科作物大豆和花生的研究成果，並結合本身研究工作內容， （ 1 ）總結了與宿主共生的根瘤菌生物學多樣性，包括大、小樣本的土著根瘤菌群體數量、分離頻率、類型與分佈及其菌株宿主共生混交性與親和性； （ 2 ）評述了根瘤菌宿主植物共生體雙邊固氮改良，包括優良菌株的選育、宿主品種資源共生特性的評價與利用及特異性狀的選擇； （ 3 ）討論了我國這一類共生體資源的豐富性以及有必要進一步加大力度研究有益資源的開發和利用的問題。
  2. Abstract : this paper concerns studies on rhizobia in symbiosis with important legume soybean and peanut crops in china, following : 1 ) summarized bio - diversity of rhizobia, including indigeneous population, isolation frequency, strain type, distribution, and strain - host promiscuity and compatibility from large and small samples. 2 ) reviewed symbiont improvement in both sides of rhizobia and hosts, involving selection of effective rhizobial strains, evoluation and utilization of the host germplasm for symbiotic properties, and selection of the both sides for special characters. 3 ) discussed the subject on the rich symbiont germplasm resource in china and on further research being necessary to exploitation and utilization of the benificial germplasm

    文摘:針對我國主要豆科作物大豆和花生的研究成果，並結合本身研究工作內容， （ 1 ）總結了與宿主共生的根瘤菌生物學多樣性，包括大、小樣本的土著根瘤菌群體數量、分離頻率、類型與分佈及其菌株宿主共生混交性與親和性； （ 2 ）評述了根瘤菌宿主植物共生體雙邊固氮改良，包括優良菌株的選育、宿主品種資源共生特性的評價與利用及特異性狀的選擇； （ 3 ）討論了我國這一類共生體資源的豐富性以及有必要進一步加大力度研究有益資源的開發和利用的問題。
  3. A modified genetic algorithm ( mga ) framework was developed and applied to the flowshop sequencing problems with objective of minimizing mean total flowtime. to improve the general genetic algorithm routine, two operations were introduced into the framework. firstly, the worst points were filtered off in each generation and replaced with the best individuals found in previous generations ; secondly, the most promising individual was selectively cultivating if a certain number of recent generations have not been improved yet. under conditions of flowshop machine, the initial population generation and crossover function can also be improved when the mga framework is implemented. computational experiments with random samples show that the mga is superior to general genetic algorithm in performance and comparable to special - purpose heuristic algorithms. the mga framework can also be easily extended to other optimizations even though it will be implemented differently in detail

    提出了一個改進遺傳演算法的結構，並且應用於帶有目標是最小平均總流程時間的流水調度排序中.為了改進一般遺傳演算法的程序，兩個新的操作被引進到這個操作中.這兩個操作為： 1 ）過濾操作：過濾掉在每一代中的最壞的個體，用前一代中的最好的個體替代它； 2 ）培育操作：當在一定代數內演算法不改進時，選擇一個培育操作用於培育最有希望的個體.通過大量的隨機產生的問題的例子的計算機實驗顯示出，提出的演算法的性能明顯好於一般遺傳演算法，並且和此問題的最好的專門意義的啟發式演算法相匹配.新的mga框架很容易擴展到其它最優化當中，只是實施的詳細的步驟有所不同
  4. The results showed that the total coincidence rate between digfa and sat and the coincidence on positive rate of detection were 99. 88 % ( 4003 / 4008 ) and 94. 25 % ( 82 / 87 ), respectively, and the sensitivity of digfa appeared to be higher in population with brucellosis and in high - titered serum samples

    方法用已建立的布病滴金免疫測定技術檢測不同職業和不同感染類型人員的布病抗體，並與布病試管凝集試驗作平行檢測。
  5. The research soil samples are from maoxian and from sichuan university especially. the results show that the two kinds of soils differ greatly in soil algae population, microorganism number and soil phosphate activity

    研究結果顯示貧瘠土壤與肥沃土壤之間的土壤藻類種群結構（土壤藻類的數量和土壤藻類的優勢種群） 、微生物數量和土壤磷酸酶活性均有很大的差別。
  6. 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。
  7. Blood samples of the population of hans and uigurs were collected, genome dna extracted, and basis pcr conditions of amplifying target sequence established. 2

    收集漢族、維吾爾族普通人群血標本，提取白細胞基因組dna ，並建立擴增目的基因片段的基本pcr反應體系。
  8. This second investigation according to the principle that samples randomly, distributing considering nation and area, with uniform method and standard, same time registers population to 15 years old of above 1062011 people undertake investigating, actual and respondent population 950356 people, respondent rate 89. 49 %, through uniting an input personal computer is analysed, the result makes clear, rate of countrywide hypertensive sicken was 1991 11. 44 %, among them diagnose hypertension is 4. 13 %, critical hypertension 7. 31 %, as comparative as census of before two whole nations, hypertensive sicken rate shows ascendant trend in our country, the person that reckon completely state - owned hypertensive patient needs treatment is person of 9 ten million

    本次調查按照隨機抽樣的原則，並考慮到民族和地區分佈，以統一的方法和標準，同一時間對15歲以上注冊人口1062011人進行調查，實際應答人口950356人，應答率89 . 49 % ，經過統一輸入微機分析，結果表明， 1991年全國高血壓患病率為11 . 44 % ，其中確診高血壓為4 . 13 % ，臨界高血壓7 . 31 % ，與前兩次全國普查對比，高血壓患病率在我國呈上升趨勢，估計全國有高血壓病人須治療者為9千萬人。
  9. Who requested that urgent action be taken to destroy these samples as the h2n2 virus which circulated in humans in 1957 - 58 until it eventually vanished in 1968, can readily transmit between humans and a considerable segment of the population do not have immunity against it

    世要求各地採取緊急行動銷毀這批樣本。 h2n2病毒曾在1957至1958年感染人類，直至1968年才最終消失，由於h2n2病毒可在人與人之間傳播，而人口中相當部分對此病毒都沒有免疫力。
  10. It is true in difficult cases, such as degraded dna or samples containing minimal amounts of genomic dna. to investigate the sequence diversity of mtdna in taiyuan han population, mtdna nt16081 - 16546 sequences were determined in 58 unrelated han chinese from taiyuan. sscp method was developed as one of screening measures which were used to examine polymorphism of mtdna, so as to supply a rapid and simple method for forensic casework

    方法隨機抽取58名太原地區漢族群體無血緣關系個體的靜脈血， edta抗凝，改良的tkm法提取mtdna ， pcr擴增、純化后，應用377序列分析儀進行直接測序分析；對毛發、指甲、骨骼等微量或嚴重降解檢材進行mtdna序列分析；採集同一屍體血液、肌肉、肝、腎、心肌、不同部位的毛乾等組織進行同一性檢測；對20個兩代家系進行突變觀察。
  11. Haplotype frequency date of 37 different types were obtained. allele frequency comparisons with other han population samples analyzed for the markers of dys390 and dys391 showed a substantial similarity

    對這3個基l天1座構成的單倍型進行觀察， 163例共檢測到37種單倍型，單倍型多樣性為0 . 9485 。
  12. The urban spatial structure in this paper is the inner one of a city, is the spatial reflection of the mankind ' s various social economic activities and the function organization of the particular city region, it includes the structure of land use, the spatial structure of economy, the spatial distribute of the population, the spatial structure of employment, the transportation network structure, social spatial structure, the spatial structure of living activities, etc. by field survey of 1134 land - value samples of urban region of siping, based on the correlative theories of the regional economics, economic geography, urban geography and urban economics, adopted the gis and the quantitative and qualitative methods, this article analyzes the character and problems of the spatial structure of siping city during the transitional phase from temporal and spatial factors, discusses the influences of the land - value on the urban spatial structure from temporal, spatial and structural dimension, put forwards the countermeasures that optimizes the spatial structure under the constraint of land - value

    本文所指的城市空間結構為城市內部的空間結構，是人類的各種社會經濟活動和功能組織在特定城市地域上的空間投影，包括土地利用結構、經濟空間結構、人口空間分佈、就業空間結構、交通網路結構、社會空間結構、生活活動空間結構等。本文通過對四平市城區1134個地價樣點數據的實地調查，在綜合運用區域經濟學、經濟地理學、城市地理學、城市經濟學等相關學科理論的基礎上，採用gis ，運用定性與定量相結合的方法，從時間、空間兩個序列分析了轉型期四平城市空間結構特徵和存在問題，並從地價的時間、空間和構成等三方面探討了轉型期四平市地價對城市空間結構的影響，提出了地價約束條件下優化四平城市空間結構的對策。
  13. 2. representativeness of samples and characteristics of the households and the study population

    2 .樣本的代表性及受訪住戶和人口特徵
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