cluster sample 中文意思是什麼
cluster sample
解釋
集束抽樣-
Previous researchers have always determined the sp atial distribution patterns ( sdp ) of castanopsis kawakamii with a sample - dis tance method. however, the distribution patterns may be affected by the quadrat si ze and, in the course of analysis, the density differences among the cluster plots are not considered ; therefore, differences of cluster plot size and the dispersi on degree among individuals of cluster plots can not be known. authers of this pa per have determined the spatial distribution patterns of castanopsis kawakamii population in different habitats by means of non - quadrat distance method and a nalysed the pattern intensity and grain of the sdp. the pattern intensity is defi ned with the relative density differences and the pattern grain can embody the d ispersion degree of the individuals in the plots, and the dispersion degree among the plots. the determined results are as follows. the intensities of the species range in order from strong to week : litsea mollifolia p. kawakamii i. purpure a r. cochinchinensis c. kawakamii c. carlessii d. oldphamii s. superba. the gra ins of the species queue in order from coarse to close : s. superba = litsea mollif olia r. cohinchinensis c. kawakamii = i. purpurea c. carlessii p. racemosam d. oldp hamii. these determined results tally basiclly with the results authers of this paper have got in determining the same plots by means of aggregate index access ing method. in view of this, it is held that the sdp of c. kawakamii is closely related to the habitats and biological features
前人都是採用樣方方法對格氏栲種群數量的空間格局進行測定，而格局分佈有可能受樣方大小的影響，且分析過程中沒有涉及聚塊間密度差的問題，因而無法掌握種群的聚塊大小差別及聚塊內個體間的離散程度.本研究採用無樣方距離法，測定不同生境的格氏栲種群空間格局，分析格氏栲種群格局的強度和紋理.強度以聚塊和間隙的密度差來定義，紋理則是體現聚塊內個體間的離散程度與諸聚塊間的分離程度.測定結果表明，格氏栲種群格局強度從高到低排列次序為：木姜子蚊母樹冬青茜草樹格氏栲米櫧虎皮楠木荷；格局紋理從粗到細的順序是：木荷=木姜子茜草樹格氏栲=冬青米櫧蚊母樹虎皮楠.這一測定結果與作者採用聚集度指標測定相同樣地格氏栲種群空間格局的結果基本相符.因此，格氏栲空間格局類型及分佈與格氏栲生物學特性及生境的關系密切 -
To training the sample the article put forward a monitor type fuzz - c cluster arithmetic and using it to establish a standard pattern database. based on human cognize character, the article put forward a weightiness amend coefficient ( wac ) to denote the important extent of different character
經過實驗驗證，本文提出了一組描述火焰圖像燃燒狀況的特徵參數，並採用一種改進的聚類演算法- -導師型模糊- c均值聚類演算法對標準模式做了訓練，建立了標準模式庫。 -
In this paper, i select the high and new tech industrial clusters, which have developed rapidly in suzhou - wuxi - changzhou region of jiangsu province recently, as a sample to study the industrial clusters and their competitiveness, and tries to seek the reason of the high and new tech industrial clusters " agglomeration in the region by demonstration analysis, comparative analysis and factor analysis, find the origin of the high and new tech industrial clusters " competitive advantage in the region, hunt after the dynamic mechanism of high and new tech industrial clusters " competitiveness in the region, and through the angle of industrial cluster " s view to find the new approach of the development of the high and new tech industry in the region, look forward to supplying a reference to some extend for th e development of industry and region economy in suzhou - wuxi - changzhou region
通過文獻調研和檢索發現，目前國內對產業集群尤其是涉及高新技術產業集群及集群競爭力研究的學術論文不多。本文選取近年來發展迅速的蘇錫常地區的高新技術產業作為產業集群和集群競爭力研究的樣本，力圖通過實證分析、比較分析和因素分析，剖析該地區高新技術產業集聚的原因，探析該地區高新技術產業集群競爭優勢的來源，探尋該地區高新技術產業集群競爭力的動力機制，以產業集群的新視角尋求蘇錫常地區高新技術產業發展的新途徑，以冀為該地區的產業與區域經濟發展提供一定的參考作用。 -
In connection with the difference and distribution characteristic of the samples in sample space rs based on dga, a new self - adapted weight fuzzy omean clustering model of fault diagnosis of the power transformer based on the potential function is proposed. meanwhile, from the aspect of geometry characteristic of fc - divided in s dimension sample space, a method is proposed for the purpose of getting an effective adjacent radius, adaptive cluster number c and original cluster center of x sample set. for the diagnosis sample x, the property measure and diagnosis rule are proposed, which under the condition of potential density function that determine c number of optimal fuzzy cluster p1
根據以變壓器dga數據為特徵量的樣本空間各樣本差異特性以及樣本在空間r ~ s的分佈特性，首次提出了基於勢函數自適應加權的變壓器絕緣故障診斷的模糊c -均值聚類模型；同時，從s維樣本空間的f ~ c -劃分幾何特性出發，提出了一種求取樣本集的類勢有效鄰域半徑和自適應求取聚類數和聚類中心初值的方法；對一個待診斷樣本，設計了基於類勢密度函數意義下的屬性測度和診斷準則。 -
The survey data were collected from a random sample of 496 ninth grade students in 15 probability proportionate multistage cluster classes in taichung city and county, taiwan in 2005
本研究資料得自2005年臺中縣市的496位依縣市接近等比例、鄉鎮市區及學校不重復原則的15個接近等比例、叢集隨機班級樣本。 -
Energy spectrum ananlysis using wavelet technique is studied and applied to deal with feature exstraction of missile fault signals, from which a feasible feature vector is created, to be used by the fdes based on inn. parameters for diagnosis are also selected based on two different criteria : the cluster divergence of sample datas and the diagnosis reliability of parameter candidates
研究了小波能量譜分析技術在地空導彈故障數據特徵提取方面的應用；提出了基於樣本綜合離散度和參數診斷置信度兩種診斷參數選擇的方法，從而為基於集成神經網路的故障診斷做好了準備。 -
In the way based the scientific and tecdrical talks on i presided at and panicipated in, the graduation theis included a p1entful thets in recent years wtll be divided into three parts for depiction conxteniently and clearly, according to the content as fo1lowsf ( l ) the study of shock compression properties with the drixtiir - liquid co and n, experimentally ( 2 ) the study of the phenomenon of excess heat produced by deuteriurn atoms entering into the lattice of titaluxn experimentally ( 3 ) the calcujation for the electronic structure and energy of hydrogen atoms cluster ffi. the mainstream in the first part of the paper is to exposure some experimental tecndques in high pressure and high temperatur shock compression physics, including by using a cryo - target cooled down circulating steaxned n, to condense the well - proportioned mixed liquid sample from pure gas co and n = with equal molar voiurne
根據近幾年所承擔和參加的科研任務，將研究成果總結寫成的論文按以下三個部分敘述： （ 1 ）液體co和n _ 2混合物沖擊壓縮特性的實驗研究（由國防科技重點實驗室基金項目96js75 . 2 . 1 . jw1902資助） （ 2 ）重氫原子進入鈦晶格中引起過熱現象的實驗研究（由國家自然科學基金10145002資助） （ 3 ）氫原子團簇h _ 9的電子結構與能量計算第一部分以高溫高壓沖擊波物理實驗為主，採用自行研製的低溫循環汽冷靶冷凝制樣技術由高純co和n _ 2氣體獲取等摩爾體積均勻混合的液體沖擊初態樣品。 -
Methods a cluster sample of 499 children was randomly chosen from 6 primary schools in chongqing
方法採用隨機整群抽樣，對重慶市城區6所小學在讀流動兒童449名進行問卷調查。 -
Methods by using the cluster sampling method, a sample of 518 students drawn from 4 high schools in chuzhou, then a questionnaire survey was conducted among them
方法採取整群抽樣方法對滁州市4所高中三年級畢業班學生518名進行問卷調查。 -
Chapter three is cluster analyses, taking cluster analyses on tds and the three anion percentage of meq as key element, 25 pieces of fresh water sample will be divided into 3 kinds and be studied, find out the difference between different classes of water styles
第三章為聚類分析部分，通過對礦化度和三大陰離子毫克當量百分數為要素的聚類分析，將示例的25個淡水水樣分成3類進行研究，找出了同類水樣間的共性和不同類別水樣之間的差異。 -
First, let us take the history record of activities of the earthquakes on the mainland as the sample of statistics to analyze the distribution characteristics of the mainland earthquakes in both time and space. it shows that no matter we take the mainland as a whole to study, or take the mainland as two sections ( the east and the west ), even take the activities of the earthquakes in a certain region to study, the mainland activities occur in cluster in both time and space. that is to say there is a clear objectivity in the characteristic of the activities of the strong mainland earthquakes - group activity
首先，以中國大陸地區歷史地震記錄為統計樣本，對大陸地震在時間和空間上的分佈特徵進行統計，表明，無論是把我國陸區作為一個整體來研究，還是把我國陸區分為東西兩區來研究，乃至取某一個地區的區域地震活動性來研究，大陸地震活動在時間和空間上呈成組性叢集活動特徵，即中國大陸強震成組活動的特性具有鮮明的客觀性。 -
In this paper, the near - infrared spectral measurement and principal component analysis ( pca ) of simulated spilled petroleum samples are made, the princpal component scores are taken as the cluster characteristic variables for making fuzzy clustering, the near infrared spectrometry and pca together with fuzzy clustering method are then used for rapid recognition of simulated spilled oils, and the sample clustering and recognition patterns are established
摘要對模擬溢油的石油類樣品進行近紅外光譜檢測並進行了主成分分析，以主成分得分作為聚類的特徵變量進行模糊聚類，採用近紅外光譜測量結合主成分分析和模糊聚類法快速識別模擬溢油種類，並建立了樣品聚類與識別模型。 -
( 2 ) base on the complete sample of 178 spiral galaxies in the virgo cluster given by fouque et al. ( 1990 ), the sv orientation distribution of the spiral galaxies with known galactic inclinations is studied
（ 2 ）利用fouqueetal . （ 1990 ）所得的帶有傾角數據的完備的virgo團旋渦星系樣本，對virgo團旋渦星系旋轉矢量分佈進行了統計分析。 -
Cluster pattern sample
聚合模式取樣 -
With cluster analysis of the empirical sample of listed companies in advance, we calculate optimum number of contingency influential environment by sensitivity analysis and theoretical inducement next, and achieve a structural model of tmt incentive portfolio contingency influential environment in the end. separate measurement of tmt incentive portfolio domino offect is conducted subsequently allowing for different empirical samples in different environments. as a result, we sum up the features of tmt incentive portfolio with higher marks and constitute the best tmt incentive portfolio mode under each contingency influential environment
然後，運用優化分層聚類分析方法對實證樣本進行聚類，獲得上市公司高級管理層激勵組合權變影響環境的結構化模型，針對每一權變影響環境類型中的實證樣本公司，分別測度出高級管理層激勵組合效應，歸納出各類權變環境類型中激勵組合效應得分較高的高級管理層激勵組合特徵，形成該種權變影響環境類型中最優的高級管理層激勵組合。 -
4. based on uniform design and the cluster theory, a optimum selecting method of sample is proposed to solve the problem of sample selection
結合均勻設計和聚類思想提出的樣本優選方法，在一定程度上解決了神經網路樣本選擇的問題。 -
According to the viewpoint of prof. f. h. wittmann and the development trend of concrete science, the author has successfully combined the theory of fuzzy cluster analysis with the quality control work of rmc production by mathematical modeling, hi actual work, there are some differences of concrete mix proportion and concrete performance index between the standard sample that is accord with all demands of hpc and differential sample that is mainly accord with demands of mix design by comparing and clustering. therefore, rmc is up to the standard of hpc after adjusting these differences
本文正是基於上述指導思想和混凝土材料科學的發展趨勢，把模糊聚類的分析理論和混凝土質量控制工作中存在的問題，通過建立數學模型將二者有效地結合起來，其目的及意義是：在實際工作中，將基本符合設計要求的若干組混凝土配合比數據、性能指標數據，與經過工程實際檢驗、符合高性能混凝土各項指標要求的混凝土進行比較、歸類，找出差異，調整參數，實現混凝土生產的高性能化。 -
In the third part, this thesis analyses the sample characteristics in terms of specific classification indicator characteristics and cluster characteristics
再次，從分類指標特徵、聚類特徵兩個方面，對樣本的特徵做出了分析。 -
Then in methodology, sample, measurements of variables and methods are defined in order to examine hypothesis above. pror example, several indicators are used to measure a variable, and stepwise regression, cluster analysis and correlation analysis compose empirical methods
然後，為了檢驗上述因素的影響，確定了實證研究的樣本、變量指標和研究方法：選擇變量指標時，採用多指標度量法，盡可能從不同角度全面反映變量；實證研究方法上主要有逐步回歸分析、聚類分析和相關系數分析。 -
Methods a stratified random cluster sample of 17269 students in china were investigated with the children and adolescents ' qol scale according to the census data in 2000, and the urban and country norm of the scale were respectively established
方法依據2005年第5次全國人口普查資料，在全國進行多階段分層整群抽樣，分別建立城市和農村2套常模。
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