群間方差 的英文怎麼說

中文拼音 [qúnjiānfāngchā]
群間方差 英文
between group variance
  • 群 : Ⅰ名詞（聚在一起的人或物） crowd; group Ⅱ量詞（用於成群的人或物） group; herd; flock
  • 間 : 間Ⅰ名詞1 （中間） between; among 2 （一定的空間或時間里） with a definite time or space 3 （一間...
  • 方 : Ⅰ名詞1 （方形; 方體） square 2 [數學] （乘方） involution; power 3 （方向） direction 4 （方面） ...
  • 差 : 差Ⅰ名詞1 （不相同; 不相合） difference; dissimilarity 2 （差錯） mistake 3 [數學] （差數） differ...
  • 方差 : dispersion
  1. On the basis of the ratio of different age in statistical yearbook, author creates a method of the financing of social security for fictitious person, in order to avoid accuracy being disturbed by the difference among particular farmers

    本文以人口統計年鑒中不同年齡段人口所佔比例為基數，創建了虛擬合理標準人的測算方法，規避被征地農民群體個體之間存在的差異對準確推算保障所需資金的干擾。
  2. Seventeen important morphological characters were analysed to identify and evaluate genetic diversity of morphology of the lespedeza populations. fourteen vital morphological characters were studied using basic statistics, correlation analysis, factor analysis and cluster analysis. zymograms were analysed using eighteen alleles of seven allozymes

    對14個關健形態學性狀指標的平均值、方差、標準差、變異系數等基本統計分析表明，胡枝子屬植物不同種間以及種內居群間在這14個重要形態學性狀上的遺傳差異較大，變異系數達28 . 89 122 . 36 （全生育天數除外，變異系數為4 . 72 ） 。
  3. 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
  4. Heredity modes of 6 traits were studied by analysis of population genetics, by the method of family combination analysis, by the methods of proband ' s sib analysis, segregation analysis, the threshold model of polygenes, and analysis of typical family trees, according to the data of the 72 families. the relative importance between genetic and environmental effect on each character was evaluated by comparing the coherence of twins. gene frequencies of 5 genetic characters, calculated from han group in huhhot, were compared with other groups by u - test so as to study the population or nationality difference in heredity

    採用群體遺傳學分析、家系組合分析法、先證者同胞法、分離分析法及多基因閾值模式分析方法對所得家系資料進行了統計學分析，結合家繫系譜分析探討了上述6項特徵的遺傳方式；通過雙生子一致率的比較，對上述特徵的遺傳與環境效應的相對重要性進行了評價；計算了呼和浩特市漢族群體5對遺傳性狀的基因頻率，採用u檢驗方法與相關文獻報道的其他群體進行了比較，探討了不同種族間或民族間的遺傳差異性。
  5. This investigation of the two species is mainly dealing with their morphological characters, population biology, pollination biology and molecular biology, based on the following methods such as section slides, sem, artificial pollination, rapd analysis and gravity glass slides. this study is intended to demonstrate the distribution patterns of the populations for the two species, the numerical and spatial characteristics of ecological difference, the biological characters of seeds, pollination mode and reproductive stratigies, and molecular genetics. in light of the results from this study, the reasons that resulted in the present dangerous situation for the two species were discussed, and the suggestions for protecting them were proposed

    本研究以種群為單位，採用石蠟切片、掃描電鏡、重力玻片、人工授粉、 rapd分析等方法，對兩種植物的形態生物學、種群生物學、繁殖生物學和分子生物學等方面進行了詳細研究，以揭示它們的種群分佈類型及成因、種群生態環境差異的數量特徵和空間特徵、種子生物學特徵、傳粉和生殖策略以及種群分子遺傳特徵，進而探討兩物種瀕危的成因和機制，並針對性地提出了科學合理的保護對策和建議。
  6. The results of variance analysis showed the variant extent of above 5 morphologic characters was plant height > crown breadth > sporophyll number > leaf number > leaf breadth in turn

    方差分析結果表明： 5個形態指標在種群間的差異程度依次為株高冠幅孢子葉數葉數葉寬。
  7. The upper cretaceous and paleogene are of continental sediments in henan province, and the boundary between them considered to be unconformable or disconformable because of the very difference in sedimentation and biological assemblages

    摘要河南省上白堊統與古近系均為陸相沉積，在全省范圍內，兩者間呈假整合或不整合接觸，在沉積特徵上顯示出較大的差異，在古生物群的演化方面，也各自具有不同的特色。
  8. The author investigated the community of grasshoppers in changbai mountain area during the period of july to september 2001, complementally collected specimen and systematically collected and measured environmental factors from july to october in the following year, and consulted to specimen collected by fengling zhang and yanlong - yang in 1979, 1980 and 1981. by analyzing and classifying the data of five years, the author analyzed the community construction and ecological adaptability of the grasshoppers in the area. the main aspects dealing with the grasshoppers are as follows : ( 1 ) the community construction and faunal geographical elements ; ( 2 ) characteristics of their ecological distribution ; ( 3 ) vertical distribution of grasshoppers in the northern slop ; ( 4 ) the relationship between environmental factors and differences in shape of grasshoppers in different vertical belt of northern slop, etc. in terms of faunal geographical elements of grasshopper communities, 48 species of grasshopper were recorded, belonging to 31 genera, 7 families

    本文作者於2001年7 9月間系統地調查了長白山地區的蝗蟲，並於2002年的7月到10月間對標本進行了補充採集，並對環境因子數據進行了系統的測量和收集，同時參考張鳳嶺、楊彥龍先生1979 、 1980和1981三年採集的標本，通過對標本的鑒定和整理，採用五年的野外工作數據，對長白山地區蝗蟲群落結構及生態適應特性進行了研究，主要研究內容包括：蝗蟲的群落結構及區系地理成分；蝗蟲生態分佈特點；保護區北坡蝗蟲垂直分佈及不同垂直帶內蝗蟲的形態差異和環境因子之間的關系等方面內容。
  9. Result and conclusion : there are obvious differences in sprouting, lamina spreading, bolting and " sprout tumble ", three times of " sprouting " and so - called " sprout tumble " and two fast - growing periods for plants in most of the populations in spring and autumn respectively were observed within a year, including mass bolting in may

    結果與結論：半夏各居群在出苗、展葉、抽薹及倒苗期等生長節律方面存在著差異：大部分半夏居群在本試驗栽培條件下具明顯的3次出苗和3次倒苗現象，並且在年生長期內表現出春秋兩個生長高峰期;從抽薹開花時間看，大部分居群在5月有1個抽薹開花高峰期，但具體起始和延續時間各居群間存在著較大的差異。
  10. Analysis of variance for all the traits shows that there are significant differences between populations and between individuals within populations

    方差分析表明：蠟梅表型性狀在群體間和群體內均存在極其豐富的變異， 10個性狀在群體間的差異均達顯著或極顯著水平。
  11. Calculations indicate that the carrier phase takes effect till the time width of the pulse envelope becomes smaller than the period of the carrier oscillation, and the interpretation of this phenomenon is also presented. it is the difference between phase delay and group delay that causes the sliding between the carrier and the envelope

    數值分析的結果表明，當脈寬小於光波周期時，相位的作用開始顯現出來，當脈寬比光波周期長時，載波相位的作用可以忽略，並分析了相位起作用的原因，用解析的方法說明正是相延遲和群延遲之間的差別造成了光載波在脈沖包絡下的滑動。
  12. The individuals of same communities display trait differentiation under different environmental conditions to certain extent, and the trait differences of the communities that result from geographical differences of the communities reflect the evolution ways and adapting strategies of the communities under different habitat conditions

    摘要同一種群個體在不同的環境條件下會表現出一定的性狀分化，這種由於地理差異引起的種群間性狀的變異，反映了種群應對不同生境條件的進化方式和適應對策。
  13. This paper has studied the mean attenuation, scattering, and back scattering cross sections of groups of small rotating spheroids about characteristics of microwave scattering when their rotatory axes are oriented at random in any direction in 2d plane and 3d space respectively under the condition of normal distribution, and that those physical quantities are changed with different variance, expectation and wave lengths of incident electromagnetic wave

    本文研究旋轉軸方向分別在平面內和空間中隨機取向呈正態分佈時的小旋轉橢球粒子群的平均衰減截面、平均散射截面、平均後向散射截面等微波散射特徵，以及這些物理量隨軸向分佈期望、方差及入射電磁波波長的變化。
  14. The difference of genomic dna from two subspecies were obvious, especially on the sites of 146, 192, 223, 224 and 235

    東方田鼠長江亞種和指名亞種兩個種群之間存在明顯差別，尤其是在146 、 192 、 223 、 224 、 235位，但兩種群間同源性仍高達98 。
  15. The image segmentation is done with the approach of region growing based on block mean and variance. considering the size of extracted objects and their relative position information, get rid of the " noise " objects and merge the meaningful fragmentary regions into their corresponding bigger ones. finally all pixels in non - object blocks are classified into their corresponding adjacent objects

    圖像首先被分成合適大小的子塊，子塊的色彩均值和方差值作為像素群的屬性，用基於子塊的區域生長來進行圖像分割；根據提取出的對象大小以及它們的空間位置關系，去除掉過小的噪聲對象同時將有意義的小對象合併到其所屬的大對象中；最後處于邊界的子塊將逐像素地歸類到對應的相鄰對象中。
  16. This paper analyzed the noniinear, non - - equilibrium, fractai and chaos characteristics of chinese stock market, identified, estimated and tested three fractionaliy integrated time series models the first chapter " introduction to the evoiution of stock market investment theory " summarized the nine important representative theories of different stage, summed up the trend of the development that the stock market investment theory is evotving from static portfplio theory to dynamic time series modei, from univariate modei to muitivariate modei, from linear modei to nonlinear complicated model and from traditional modei to fractai modei, paved the way for following discussion

    實際情況卻是股票市場影響因素以及各因素之間相互作用關系復雜，受投資者個人及群體心理因素影響明顯，股票的波動以及收益與風險的關系常常是非線性的，非均衡的，收益的方差和均值是自相關的、不穩定的，收益的波動符合分形布朗運動，表現出分形和混沌的特徵。本文分析了股票市場的波動的非線性、非均衡、分形和混沌特徵，建立並檢驗了幾種股票的分形差分異方差時間序列模型。
  17. As to bone size tested by quantitative transmission disequilibrium test, we found significant total association at the intertrochanteric region ( p = 0. 019 ) and total hip ( p = 0. 035 ), whereas no significant ' results for linkage, within - family association. for the father group, significant evidence of association ( test via anova ) was found at the intertrochanteric region ( p = 0

    通過數量性狀傳遞不平衡檢測，發現ahsg基因與轉子間（ p = 0 . 019 ）和髖部（ p = 0 . 035 ）的骨大小具有顯著的總的關聯，但沒有發現連鎖和家庭內的關聯，在父親群體中，通過方差分析（ anova ）發現該兩個骨骼部位與ahsg基因具有顯著的關聯，轉子間p值為0 . 005 ，髖部p值為0 . 010 ，但在母親和女兒群體中沒有發現關聯。
  18. The characteristics of different boundary conditions are evaluated. by applying the approach of the transformation of lie group, the exact analytical solutions of the non - linear consolidation equation is obtained under different initial and boundary conditions. based on this solution, the differences between that of large and infinite strain consolidation theories are analyzed

    運用變換群的方法求得了某些條件下大應變固結方程的完整解析解答，在此基礎上與相同條件下的小應變固結論理做了比較，並通過對實例的計算，分析了不同假設條件下一維固結理論之間的差異。
  19. This thesis is focused on the following flve topics. first, comparative analysis of binary encoding and float encoding is made, the advantage and disadvantages of two encoding modes and their influence on genetic operators are clarified, thus the basis for reasonable description of the problems is provided. secondly, as genetic operators have an important influence on performance of algorithms, this thesis demonstrates that the simulated binary crossover can keep the mean of population unchanged, and under some conditions

    作者在論文期間的工作主要集中在以下幾個方面：對遺傳演算法中的二進制編碼和浮點數編碼進行對比分析，闡明兩種編碼方法的優缺點和對遺傳操作運算元的影響，為合理地描述待解決的問題提供一定的依據；遺傳操作運算元對演算法的性能有重大的影響，文中對模擬二進制交叉運算元對群體的分佈影響進行了分析論證，得出模擬二進制交叉能保持群體的均值，並在滿足一定條件下使群體方差變大的結論；如何保持群體的多樣性，一直是進化演算法研究的主要內容。
  20. In this essay, firstly the author analyzes the predictability of time series from china ' s stock exchange using three kinds of methods : arma model, neural network model and non - parametric estimation and gives evaluation on their performances while at the same time puts forward some conclusions deserving attention from both stock exchange supervising department and stock traders. secondly, the author examines the assumptions closely on which the above - said methods base and gives a detailed discussion on them, especially using garch model to test quantitatively the stability of china ' s stock exchange, afterwards drawing the conclusion that it is hard to make accurate prediction of price or return rate of china ' s stocks for none of the assumptions fully holds ground. thirdly, taking account of the difference between chinese stock traders as a whole and that of developed countries, the author gives a thorough analysis on the complexity and volatility of its ( traders " ) reaction to information and points out that the intrinsic heterogeneous and volatile reaction to information is an important reason for the almost unpredictability of the price or return rate in china ' s stock exchange

    本文首先採用arma模型、非參數模型以及神經網路模型對我國股市時間序列進行研究，對三種方法在分析我國股市時間序列的表現進行評價，並得出了一些對監管部門以及股票交易者有借鑒意義的結論；其次作者對三種模型分析我國股市時間序列的前提進行了討論，特別是利用garch模型對我國股市的系統穩定性進行了量化檢驗，得出了前提難以滿足導致準確預測我國股市價格或收益率困難的結論；第三，考慮到中國股市股票交易者群體與發達國家股市股票交易者群體之間的差異，作者借用行為金融學的理論成果對我國股票交易者對信息反應的復雜性和易變性進行了詳細分析，指出股票交易者對信息反應的異質性和易變性是造成難以準確預測我國股市的一個重要原因，考慮到我國股市以散戶為主導的特性將長期存在，因此將行為金融學的研究結論納入對我國股市時間序列的量化研究具有重要的意義；最後，作者從唯理預測與唯象預測之間差異的角度出發，指出了唯象預測的缺點並對我國股市時間序列的研究方向進行了展望。
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