度量群 的英文怎麼說
中文拼音 [dùliángqún]
度量群
英文
metric group-
They are jinfo mountain in nanchuan county ( natural protection section ), wuling mountain in qianjiang county ( national emphases forest demonstration county which forest cover rate is beyond 50 % ) and zhongliang mountain in beibei county ( artificial destruction is very grave ). some main land use patterns i. e. woodland, garden, infield, abandon infield, shrub and grassplot are selected in those three sample sites. four aspects on soil fertility index of karst environment under different land use patterns in these three sample sites, are revealed in this paper, by using the field test, indoor measure and analysis, outdoor experiment and field investigation, and the knowledge and technique of soil, ecology, physics and chemistry etc. they are physical characteristic ( effective soil thickness, organic layer thickness, soil texture, water - stable aggregate and soil water etc. ), chemical fertility ( organism, omni - n, omni - p, omni - k, alkali - nitrogen, available p, available k and rapid available k etc. ), soil animalcule ( bacteria, fungi, actinomyces and their grosses ) and soil - seed - pool ( plant community diversity index ) in karst ecosystem
本研究以重慶市的南川金佛山（自然保護區） 、黔江武陵山（國家重點退耕還林示範縣，森林覆蓋率50以上）和北碚中梁山（遭人為破壞嚴重）典型巖溶區為對象，選擇了幾種重要的利用方式，包括林地、果園、耕地、棄耕地和灌草坡，採用野外巖溶生態調查和室內試驗測量分析相結合的方法，以不同土地利用方式巖溶土壤肥力為重點，對不同土地利用方式土壤肥力特徵進行量化分析，找出巖溶土壤肥力差異的主要方面及其根本原因，論文主要從土壤剖面物理退化指標（有效土層厚度、有機質層厚度、質地、團聚體、水分含量等） ，化學肥力退化指標（有機質、全n 、全p 、全k 、堿解n 、速效p和速效k等） ，樣地土壤微生物指標（細菌、真菌、放線菌數量及總量）以及樣地土壤種子庫植物群落多樣性等4個方面對重慶典型巖溶區的土壤肥力特徵進行了較為詳細的分析研究，為巖溶地區士壤資源的合理利用及結構的調控管理提供依據。The results showed that the mean proportion of polymorphic loci ( ppb ) of anabasis aphylla, which comprised 3 subpopulations ( 58 individuals sampled ), generated by 16 primers was 94. 56 %, the value of ppb of ceratocarpus arenarius, which had 4 subpopulations ( 80 individuals sampled ), using 16 primers was 98. 00 %. the paper had proved that the higher genetic diversity and the genetic differentiation existed in the populations of boih anabasis aphylla and ceratocarpus arenarius, while the latter had much more genetic diversity than the former. moreover, the study discussed the shannon information index and nei ' s gene diversity index of the two species natural populations, which indicated that there were more genetic variations within the subpopu
另外，通過rapd資料的聚類分析及相關性分析研究，發現無葉假木賊和角果藜自然種群的遺傳結構與綠洲沙漠過渡帶的微生境生態因子（主要是土壤因子）相關，其中無葉假木賊亞種群遺傳多樣性水平不僅與土壤含水量（ w ） 、鉀鈉離子濃度（ k + na ）和氯離子濃度（ cl ）呈顯著的正相關（ p 0 . 05 ） ，還與土壤中有機質（ som ） 、全氮（ nt ）和全磷（ pt ）含量呈顯著的負相關；同時，角果藜種群的遺傳多樣性水平與土壤中有機質（ som ）和全氮（ nt ）含量呈顯著的正相關，而與co _ 3 ~ （ 2 - ）濃度呈顯著的負相關；除此之外，其它土壤生態因子與兩物種遺傳多樣性水平的相關性均不顯著（卜0 . 05 ） 。The perennial vegetation is expected to a. ordosica dominated and h. scoparium stably co - existed, together with an annual plant population of e. poaeoides and b. dasyphylla, which is greatly fluctuated with annual precipitation pattern
其將與因年際間降水量及其分佈差異引起的種群密度等特徵波動的一年生草本小畫眉草和霧冰藜種群長期共存。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。Form. taxus chinensis var. mairei is protecting plant in the first class, which is a precious and endangering plant in china in this paper, the quantitative characterics of form. taxus chinensis vsr. mairei population including age structure, spatial distribution pattern, growth dynamics of tree basal area, niche characterics, fractal dimension and competition between specises were studied using methods of mathematics ecology from the angle of population ecology of form. taxus chinensis var. mairei, then the prent state and the endangering causes were analysed. this research offers gist to protecting and enlarging the crude resourse of form. taxus chinensis vsr. mairei population, afforesting plantation and sustainable utilize for us
本文從南方紅豆杉種群生態學的角度、主要應用數學生態學的方法探討南方紅豆杉種群的數量特徵，包括南方紅豆杉種群年齡結構、種群空間格局（探討分佈格局動態規律與生境相互關系） 、不同立地條件下種群優勢度增長趨勢、生態位寬度、生態位相似比例、生態位重疊、空間占據能力及種間競爭等，分析其目前現狀及瀕危原因，期望為南方紅豆杉野生資源的保護和擴大、營造人工林及可持續利用提供理論基礎，也為瀕危植物種群生態學的研究提供參考。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。The method of modified simplex was applied to optimize the models, and the fitting results show that liu - logistic model was more suitable than logistic model to the actual growth trend of form. taxus chinensis var. mairei population, and the highest growth rate of basal area was the tenth age class, namely the phase when breast diameter was 68 ~ 76 cm
以胸高斷面積代替種群生物量，分別採用logistic常規模型及劉金福提出的logistic改進模型對南方紅豆杉種群的增長動態進行研究，運用改進單純形法對模型進行優化，擬合結果表明改進模型比logistic常規模型更符合南方紅豆杉種群的增長趨勢，南方紅豆杉種群的最大增長速度出現在第10齡級，即胸徑為68 76cm時期。Through quantitative comparison of the salinity, temperature, wind, wave, current, tide, biogenesis elements, and rare elements of coral reef in the coral reef zone of the nansha islands in china with these in the open sea, it is found that the nutrients and primary productivity in the coral reef are several dozen or several hundred times higher than those in the open sea. it is indicated that, given sufficient sunlight, the coral reef eco - environment could provide very intense photosynthesis, thus pointing to the important reason why the coral reef zone is highly productive
根據中國南沙群島珊瑚礁區的溫度、鹽度、風、浪、流、潮、生源要素、稀有元素分析並與礁外海域定量比較，得出珊瑚礁區的營養物質和初級生產力比敞海高出幾十倍到幾百倍，表明只要有充足的陽光，珊瑚礁生態環境就可以提供十分強烈的光合作用，從而證明了珊瑚礁海區高生產力的重要原因。Based on the field investigations and laboratory examinations, a study of the population of the epiphytic dolichomitriopsis diversformis ( mitt. ) nog. in fanjing mountain reveals that its habitats are different among different host trees, but that there lies the common habitat characteristics of not more than 2m height from the bottoms of host trees trunks, less light, high relative humidity, slow wind speed, slow evaporation speed and long time of remaining humid in middle - lower tree bark ; that it is one dioecious moss species, the morphology is remarkably different between its perichaetium and perigonium, the number of its perichaetia is much more than that of its perigonia, its perigonium is difficult to find out, its sporophyte is upright, its seta is long and thin, its capsule is regular long oval and its calyptra is cucullate
摘要通過野外調查和室內觀測對貴州省梵凈山樹附生尖葉擬船葉蘚種群的研究表明，其生境因其所附生的樹種不同而有所不同，但具有共同特點：附生在樹干下部距地面2m高的范圍之內，光照弱、濕度大、風速小、蒸發量小、中下部樹皮保持濕潤的持續時間長；其為雌雄異株蘚種，雌、雄器苞形態差異明顯，雌器苞數量多，雄器苞數量少並且難于發現，孢子體直立，蒴柄細長，孢蒴規則長卵形，蒴帽兜形。Headaches : a slowdown in traditional newspaper advertising. the proliferation of media choices, especially the internet, threaten to cannibalize both readership and prestige
最頭痛的事：傳統報紙廣告量下降。隨著越來越多的媒體出現在人們面前，尤其是隨著因特網的發展，報紙的讀者群及影響面都有不同程度的下降。In the preprocessing stage the method of user and session identification often adopt heuristic algorithm for the being of cache and agent. this induce the uncertainty of data resource. the cppc algorithm avoid the limitation and has no use for complicated hash data structure. in this algorithm, by constructing a userld - url revelant matrix similar customer groups are discovered by measuring similarity between column vectors and relevant web pages are obtained by measuring similarity between row vectors ; frequent access paths can also be discovered by further processing of the latter. experiments show the effectiveness of the algorithm. in the fourth part, this thesis bring some key techniques of data mining into web usage mining, combine the characteristic of relation database design and implement a web usage mining system wlgms with function of visible. lt can provide the user with decision support, and has good practicability
本文演算法避免了這個缺陷，且不需要復雜的hash數據結構，通過構造一個userid - uel關聯矩陣，對列向量進行相似性分析得到相似客戶群體，對行向量進行相似性度量獲得相關web頁面，對後者再進一步處理得到頻繁訪問路徑。實驗結果表明了演算法的有效性。第四是本文將傳統數據挖掘過程中的各種關鍵技術，引入到對web使用信息的挖掘活動中，結合關系數據庫的特點設計並實現了一個具有可廣西人學頎士學位論義視化功能的web使用挖掘系統wlgms 。In ciefcm, a tiny disturbance was added to filial generation group by using chaos variable and the disturbance amplitude was adjusted step by step, which greatly improves the colony diversity of immune evolution algorithm ( tea )
該演算法把混沌變量加載于免疫演算法的變量群體中，利用混沌搜索的特點對群體進行微小擾動並逐步調整擾動幅度，明顯改善了免疫演算法的群體多樣性。With a field survey of aas, a car rental service business in the suzhou, those theories and methods of job satisfaction were put into practice. a system of measurement aiming at aas staff was designed from aspects of job itself, rewards, support, peer group, corporation management and operation. apart from the above mentioned, some variables, such as staff gender, age, education background and position were also taken into account in the analysis of job satisfaction
本文第二部分是員工滿意度實證分析，在實地走訪和調研蘇州aas汽車租賃企業的基礎上，將工作滿意度調研分析的有關理論與方法運用到實踐中，設計了一套針對aas員工的工作滿意度量表，從工作本身、工作回報、工作支持、工作群體、企業管理、企業經營等六個維度來調研分析aas員工工作滿意度狀況，並對員工性別、年齡、教育水平、職位職務等變量對工作滿意度的影響進行了分析。Multivariate morphometrics was conducted on the endemic asian genus sinibrama wu, 1939 in east asia in order to investigate the morphological variations among the 4 nominal species and subspecies known from south china. principal component analysis ( pca ) was performed respectively for seven meristic and thirty - two morphometric characters that were based on 224 specimens
運用多變量形態度量學方法，研究東亞特有魚類類群?華鯿屬魚類的形態差異，對其在分類學上存在疑問的物種的不同地理居群的18個框架測量距離、 14個常規測量距離和7個可數性狀進行了主成分分析。These are 18. 100b ( analysis and metric spaces ) and 18. 700 ( linear algebra ). the course 18. 101 ( calculus in several variables ) would be useful and some familiarity with topological groups is also helpful
學生需要預修18 . 100b （分析和度量空間）和18 . 700 （線性代數） 。預修過課程18 . 101 （多變數微積分）或者熟悉拓撲群都對學習本課程有幫助。A small walled garden, for example, is scaled to the close - range view of its occupant ; a large park, however, benefits from spacious vistas and massive groupings of trees
比如說，一個圍墻之內的小庭院的尺度要滿足其使用者的近距離的視線的要求；得益於其空間上的豐富多變以及大量群植的樹木而形成的景觀，大公園也能獲得宜人的尺度。The results showed that the a cinerarius populations were in aggregated pattern of distribution during tile three years in this district, but the aggregation degree as well as the spatial and quantitative distribution varied dynamically
結果顯示， 3年中春尺蠖種群均為聚集分佈，但聚集程度、種群空間分佈和數量處于動態變化之中。The research of human resource value measure models of this paper has very important theoretical meaning and realistic significance. under the guidance of marxian labor valve theory and occident human capital theory and element distribution theory, this paper aims at the high science & technology software development enterprise and designs model systems of human resource group value and individual value measuring, which not only adhere the traditional accounting principle, but also combine qualitative analysis with quantitative analysis. in detail, it is organized as follows : ( 1 ) according to some defects of the available value measuring models, this thesis brings forward 4 innovative trains of thought : adopts the method that combine qualitative analysis with quantitative analysis, and establishes the new measuring basis that contain human resource the present period input cost and realized value, and defines the high - grade human resource as the target evaluation group of individual value measuring, as the basis for revealing the real contribution of human resource group firstly and achieving individual value by distributing group value to the target evaluation group in according with the specific rules secondly ; ( 2 ) analyzes the constitution of human resource value, and comes up with new way of thinking on group value measuring : adopts the historical cost means to calculate human resource group the present period input cost, and rectifies the present period realization value theory of li - shicong professor from accounting angle, and obtains more scientifically the group present period new contribution value, as the basis for structuring the new measuring
首先揭示組織中人力資源群體對企業的真實貢獻，然後再將群體價值以一定的規則分配給目標評估群，從而確認個人價值; （ 2 ）分析人力資源的價值構成，提出新的群體價值計量思路:採用歷史成本法計量群體當期投入成本，並對李世聰教授提出的當期實現價值理論從會計學角度進行了修正，更為科學地確定了群體當期新增貢獻價值，從而構建了全新的人力資源群體價值計量模型; （ 3 ）分析個人價值的影響因素及其關系，提出新的個人價值計量思路:運用層次分析法獲得目標評估群在群體當期新增價值中的權重，確定高級人力資源當期所創造的貢獻份額;基於崗位相對權重和個人崗位績效評估值這兩個關鍵指標，將層次分析法和關聯矩陣法結合起來，計算個人貢獻價值系數，確定某個體在目標評估群中的權重，從而構建了全新的人力資源個人價值計量模型; （ 4 ）選取了一家人力資本含量較高的it公司，將所構建的理論模型在該公司進行了實證檢驗，驗證了模型體系在實務中的科學性與可操作性，從而在一定程度上豐富了人力資源價值計量理論，推動了人力資源會計與現行會計核算體系的接軌。The parameter can be adjusted adaptively by incorporating population entropy into the algorithm to provide a quantitative measure of population diversity of individuals in the population and new individuals can be introduced into the population by a big - mutation operation when the individuals in the population tend to be consistent. the case study shows that the algorithm can alleviate the problem of premature convergence as well as improve the efficiency and scope of searching
本研究將信息嫡引入遺傳演算法以度量種群的多樣性;當判斷其發生過早收斂時，則通過「大變異」操作來引入新個體，從而有效緩解了成熟前收斂的發生，提高了演算法搜索的范圍與效率。The only two scales on which the performance of a beowulf cluster can be measured are quantity of floating point operations per second and cost
一些人認為唯一兩個可以用來度量beowulf群集性能的指標是：每秒浮點運算操作的數量和成本。分享友人