selected population 中文意思是什麼

selected population 解釋
選用群落
  • selected : adj. 挑選出來的；精選的。
  • 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。
  1. Seven plots selected from wanglang reserve were distributed in different types of forest and at different altitude, and different plot has different microclimate. soil property, microbial population, soil nutrient content of forest soil were determined in wanglang natural reserve, from may to october 2002 to july 2003, the ecological distribution of three main groups, bacteria, actinomycete and fungi were determined in the forest soils by the cell enumeration methods. six kinds of physiological groups, including ammoniation bacteria, nitrification bacteria, nitrosification bacteria, aerobic autogenesis azotobacter, aerobic cellulose - decomposing bacteria and anaerobic cellulose - decomposing bacteria were enumerated by the most - probable number ( mpn )

    2001年10月在王朗自然保護區內設立了3個定位研究樣地和4個臨時樣地，通過多次現場采樣與室內實驗分析，測定了白樺林、岷江冷杉林、紫果雲杉林、繡線菊-羊茅群落、羊茅群落及高山柳灌木叢等6種不同植物群落內土壤微生物三大類群數量、功能微生物數量、土壤養分，並在固定樣地內使用埋袋法進行了三個埋藏深度的凋落物分解袋試驗，初步研究了枝條、闊葉、針葉等凋落物組分在不同分解階段所含養分的動態變化。
  2. The growth dynamics of tree basal area of form. taxus chinensis var. mairei population in different altitude were discussed using the liu - logistic model, and the results showed that the altutide of 790 meters is more suitable to the survive of form. toms chinensis var. mairei population than 990 meters. plot sampling was selected and dynamic analysis was used to study the height structure of taxus chinensis var. mairei population, and the quadrate picture of height structure and the curve of survival rate were drew

    運用改進模型對南方紅豆杉種群在不同海拔梯度的種群優勢度增長進行了探討，表明海拔790m處的南方紅豆杉具有較大的環境容納量，但增長速度不快，海拔990m處的南方紅豆杉種群環境容納量不高，但具有較大的增長速度，這可能與群落的發育階段不同有關，兩地海拔均為南方紅豆杉適宜的生長海拔高度，相比而言，海拔790m的珍稀瀕危植物南方紅豆杉種群數量特徵的研究高度更宜於南方紅豆杉種群的生長。
  3. With the selected outgroup - chlamys farreri, the phylogenetic trees suggested that zhejiang population has differentiated. 3. in pb - pa and y1 - p0 families of argopecten irradians, 12 and 10 rapd primers were selected, which

    在海灣扇貝pb - pa與y1 - p0家系中，分別篩選出12和10條引物，其擴增出的產物在雙親中呈現多態的片段。
  4. Second, genomic dna polymorphisms of three mandarinfishes populations ( each bulked dna pool composed by 10 individuals ) were tested by rondom amplified polymorphic dna ( rapd ) using bulked segregant analysis ( bsa ). 12 primers selected from operon kitz yielded reproducible and polymorphic dna fragments ranging from 125bp to 3kb. these primers generated 60 scorable marker bands of which 15 ( 25 % ) were polymorphic in qiupu river population ; 59 bands in changjiang population, 15 ( 25. 4 % ) were polymorphic ; and 58 bands in wanfuhu mandarinfishes, 19 ( 32. 8 % ) were polymorphic

    20個引物中有12個在三群體間產生多態性，這12條引物在秋浦河鱖魚中擴增出了60條帶，其中15條為多態性（佔25 ） ；長江鱖魚59條帶， 15條為多態性（佔25 . 4 ） ；萬佛湖鱖魚58條帶， 19條為多態性（佔32 . 8 ） 。
  5. 4 concurrent with the publication of the summary results report, selected data on the 2006 population by - census are also posted on the website of the census and statistics department ( c & sd )

    4在《簡要報告》出版的同時，有關二零零六年中期人口統計的選定數據亦於政府統計處的網站上發布。
  6. The characteristics of quantum computing and the mechanism of immune evolution are analyzed and discussed. inspired by the mechanism in which immune cell can gradually accomplish affinity maturation during the self - evolution process, a immune evolutionary algorithm based on quantum computing ( mqea ) is proposed. the algorithm can find out optimal solution by the mechanism in which antibody can be clone selected, memory cells can be produced, similar antibodies can be suppressed and immune cell can be expressed as quantum bit ( q - bit ). it not only can maintain quite nicely the population diversity than the classical evolutionary algorithm, but also can help to accelerate the convergence speed and converge to the global optimal solution rapidly. the convergence of the mqea is proved and its superiority is shown by some simulation experiments in this paper

    分析和探討了量子計算的特點及免疫進化機制，並結合免疫系統的動力學模型和免疫細胞在自我進化中的親和度成熟機理，提出了一種基於量子計算的免疫進化演算法.該演算法使用量子比特表達染色體，通過免疫克隆、記憶細胞產生和抗體相似性抑制等進化機制可最終找出最優解，它比傳統的量子進化演算法具有更好的種群多樣性、更快的收斂速度和全局尋優能力.在此不僅從理論上證明了該演算法的收斂，而且通過模擬實驗表明了該演算法的優越性
  7. Abstract : the characteristics of quantum computing and the mechanism of immune evolution are analyzed and discussed. inspired by the mechanism in which immune cell can gradually accomplish affinity maturation during the self - evolution process, a immune evolutionary algorithm based on quantum computing ( mqea ) is proposed. the algorithm can find out optimal solution by the mechanism in which antibody can be clone selected, memory cells can be produced, similar antibodies can be suppressed and immune cell can be expressed as quantum bit ( q - bit ). it not only can maintain quite nicely the population diversity than the classical evolutionary algorithm, but also can help to accelerate the convergence speed and converge to the global optimal solution rapidly. the convergence of the mqea is proved and its superiority is shown by some simulation experiments in this paper

    文摘:分析和探討了量子計算的特點及免疫進化機制，並結合免疫系統的動力學模型和免疫細胞在自我進化中的親和度成熟機理，提出了一種基於量子計算的免疫進化演算法.該演算法使用量子比特表達染色體，通過免疫克隆、記憶細胞產生和抗體相似性抑制等進化機制可最終找出最優解，它比傳統的量子進化演算法具有更好的種群多樣性、更快的收斂速度和全局尋優能力.在此不僅從理論上證明了該演算法的收斂，而且通過模擬實驗表明了該演算法的優越性
  8. Healthy aging is one of the very important measures which cope with the population aging, and is also one of the major goals for the development of society. the improvement of quality of life for the elderly is the core content of achieving healthy aging. totally, 303 permanent residents aged over 60 years were selected to be interviewed with whoqol - bref and questionaire related to community medical health care for the aged

    健康老齡化是應對社會人口老齡化挑戰的重要舉措，也是以人為本社會發展的主要目標之一。提高老年人生活質量是實現健康老齡化運動的核心內容。本文採用whoqol - bref量表和自行設計的老年社區醫療保健情況調查表，對雲南省楚雄市303名城市社區老年生活質量進行測評和影響因素分析。
  9. On the basis of research on market efficiency, index funding, clustering algorithm and time factor, 295 stocks in shenzhen stock market are selected as the research objects. clustering algorithm with time factor is applied to choose portfolio population, and then single index model is used to calculate the weight of every individual stock in order to construct an index proxy portfolio to track shenzhen composite index

    本文在對市場有效性、指數化投資、聚類演算法和時間因子等有關理論進行分析研究的基礎上，以在深圳證券交易所上市的295隻股票為研究對象，使用加入時間因子的聚類演算法選擇證券投資群體，再利用單指數法構造市場指數代理證券組合，以此來逼近深圳綜合指數。
  10. A small group selected from a wider population to find out how they feel about a company ' s current products and strategy

    焦點組選自較大范圍的一個小規模組，確定他們對公司目前產品和策略的看法。
  11. One small captive population of amur tigers ( panthera tigris altica ), which had 14 - year captive history since its foundation in 1986, was selected for such population genetic researches in this paper, which contained three experimental parts as : ( 1 ) dna extraction from shed hairs. three methods, which were chelex, ionic detergent and non - ionic detergent, were respectively used to digest the shed hairs of one amur tiger

    本文利用chelex 、離子型和無離子型分解液三種方法對在東北虎（ pantheratigrtsaltica ）換毛期採集的自然脫落毛發進行了dna提取，並對部分毛發分解原液進行蛋白質沉澱，對于毛發分解殘留物也進行了核細胞分解與蛋白質沉澱再處理，對上述提取產物進行rapd擴增。
  12. The main research work of dissertation can be concluded as follows : 1. two kinds of hybrid strategies of genetic algorithms and tabu search are discussed systematically in this paper. the idea of tabu search is introduced to improve crossover operator and mutation operator of genetic algorithms for the first strategy, while tabu search is executed to a certain proportional selected individuals in the population after genetic evolution of every generation for the second strategy

    本文的主要研究成果概括如下: 1 .論文比較系統地探討了遺傳演算法和禁忌搜索演算法的兩種混合策略:第一種是利用禁忌搜索的思想來改進遺傳演算法的交叉運算元和變異運算元;第二種是對每代中交叉變異后得到的新種群中的一定比例的個體進行禁忌搜索處理。
  13. ( 3 ) the span analysis of the genetic operators. 8 schemes were provided to analyze the relation of the genetic operators such as population size, cross probability, mutation probability. at last, a optimum group of genetic operators was selected

    提出8種方案來分析遺傳操作運算元（種群規模、交叉概率和變異概率）之間的聯系，並根據精度最高原則最終確定一組合適的遺傳操作運算元。
  14. The results page shows population density for the zip code selected and adjacent zip codes with color - coded " push pins. " the map can be moved with a left - click, drag mouse action, and the scale can be changed with the zoom control in the upper left corner of the map

    結果頁面顯示了所選擇的郵政編碼以及相鄰郵政編碼地區的人口密度，這個相鄰郵政編碼帶有有顏色的「 push pins 」 。通過左鍵單擊、拖動鼠標動作可以移動地圖，通過地圖左上角的縮放控制項能夠改變地圖的比例。
  15. The theoretical models show that when males are able to distinguish perfectly between infected and uninfected females, the bacterium will simply be selected out of the population

    理論模型顯示，要是雄性確實能夠區別感染的雌性與未受感染的雌性，宿主族群中的沃巴赫菌就會遭天擇淘汰。
  16. We consider that such a quantitative monitoring program is necessary and important for a scientific comparison between the monitoring and the baseline data with reference to the population level of the selected target species of conservation importance and or biological diversity of the site

    世界自然基金會認為任何彌償措施必須附設量化的監察系統，收集工程后個別具保育價值指標物種的群落數量或受影響地區的物種多樣化數據，與基線資料作科學比較。
  17. So the professional components of arcobjects are selected in the paper to construct application system of gis which is henan population electric map system ( hpems ), with functions of data management, searching, spatial analysis and tools, showing windows, making maps and so on, which denotes one direction to design the application system of gis with more advanced functions or to combine functions of gis with management information system ( mis ), decisive supporting system ( dss ), office automation ( oa ) and so on

    因此本文選擇了arcgis的專業組件以構造gis的應用系統一一河南省人口電子地圖系統（ hpems ） ，並基於該組件提供的完備的空間數據處理、分析功能，利用可視化開發工具，進行了河南省人口電子地圖的開發實踐。設計功能如下:數據處理、選擇查詢、分析工具、窗口顯示、制圖輸出等功能。這代表了一種設計具有更高級功能的gis應用系統或把gis功能與管理信息系統（ mis ） 、決策支持系統（ dss ） 、辦公自動化（ oa ）等系統集成的方向。
  18. The suburbs of city have particular position, its land use is influenced by the urbanization process of suburbs and is limited by agricultural land. it often becomes first - selected region where many cities solve “ urban disease ”, evacuate the population of old city and relieve the pressure of enterprises and the traffic. it is the location where the complexity, dynamics and transition of land type are abundant

    由於城市近郊地理位置的特殊性，其土地利用既受城市化進程（城市郊區化進程）的影響，又受農業用地的制約，往往成為眾多城市解決「城市病」 、疏散舊城人口、緩解企業和交通壓力的首選地，是土地類型復雜性、動態性、過渡性表現充分的地段，也是土地利用供需矛盾最為尖銳和集中的地區。
  19. In order to maintain the population diversity, the algorithm retains the individuals which have better fitness and farther away from the sets of the selected individuals, and uses the parameters of clustering to reduce computation cost

    為了保持種群的多樣性，演算法保留那些具有較好適應值並且與所選的最優個體集合較遠的個體，並利用聚類的參數來減少計算量。
  20. 2. 1. 1 to engage social workers and ngos in identifying and analyzing the needs of selected population groups e. g. children, elderly and propose measures for addressing the needs

    1讓社工及志願福利服務機構參與辦識及分析特定人口組群的需要（例如兒童，長者） ，並提出建議。
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