方差分佈 的英文怎麼說

中文拼音 [fāngchāfēnbù]
方差分佈 英文
distribution of variance
  • 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...
  • 分 : 分Ⅰ名詞1. （成分） component 2. （職責和權利的限度） what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] （料想） judge
  1. The box beam ' s temperature stress of longitudinal direction and transverse direction with different conformation are analyzed, it finds that there is largish temperature tensile stress in the bottom of top deck and the haunch of box beam increase temperature tensile stress in the bottom of top deck. the paper makes a study of different thermal effects resulted from several kinds of closed rigid frame

    根據大量實測溫度場結果建議採用一個有利於理論推導的指數函數的公式來擬和箱梁體內的溫差分佈，既貼近實測數值，計算又比較簡單；通過對空腹式剛架拱橋尤溪洲大橋所在地夏季、秋季、冬季的溫度場及溫度應力的實測，以及與本文所提出計算方法的理論解進行的分析比較，證實了本文計算方法的正確，同時改進了已往混凝土箱梁溫度自應力的計算方法。
  2. The method based on the principle of maximum entropy ( pome ) is applied to analyze the distributions of flood forecasting errors for some typical reservoirs in humid and semi - humid regions

    摘要採用最大熵原理（ pome ）方法，對我國濕潤和半濕潤地區部分典型水庫的洪水預報誤差分佈規律進行了研究。
  3. It is found that the distributions of flood forecasting errors both in humid or semi - humid region approximately obey the law of normal distribution and the method based on pome is effective for calculating the distribution of flood forecasting errors

    結果表明，我國濕潤和半濕潤地區的洪水預報誤差近似服從正態分佈，且採用陽me方法計算洪水預報誤差分佈是可行的。
  4. The heath - carter anthropometric so - matotyping method was used. the somatotype components and distributions was calculated and compared with t - test and analysis of variance to test differences among the somatotype means and the somatotype attitudinal distance ( sad )

    按性別、城鄉、年齡進行了分組和體型計算，對不同組別的體型三因子值及體型分佈狀況進行了比較，應用t檢驗和方差分析對不組別的體型均值和體型點進行了分析。
  5. When compared with single factor analysis of variance, covariance analysis reduced efficacy evaluation error resulting from uneven weed distribution in the field

    結果表明，與按單因素試驗方差分析相比，協方差分析方法可以減小因雜草田間分佈不均勻而導致的調查誤差。
  6. Aiming at the study actuality of fan performance monitoring system and analysis of fan performance curve changes affected by inlet - box and the different fixed - angles of guide blades in the course of installation, a fan flow monitoring model based on rbfnn in whole flow zone was established in this thesis. in the model, the method of no throttle and fan performance curve were used as basis. and on the basis of that model, fan performance curves of 4 - 73no. 8d were approached with experimental data of different speed, different opening - angles of guide blade and different resistance of pipeline, the precision and the error law of model were studied

    本文針對電站風機性能監測系統研究較少的現狀，在實驗的基礎上分析了現場加裝進氣箱和由於安裝造成的導流器葉片開度不一致對風機性能曲線的影響，並在此基礎上採用無節流方法測量流量，以風機調節性能曲線為依據，建立了基於徑向基函數（ rbf ）神經網路的風機流量全程監測模型；以實驗室4 - 73no . 8d離心風機為研究對象，探討了rbf神經網路差壓模型在變轉速、變導流器開度和變管網阻力等工況下的應用精度和誤差分佈規律；最後用visualc + +語言開發了風機性能在線監測系統。
  7. In the chapter 4, it primarily stats large numbers of original data and obtains the probability distributing functions of each assessment factor by means of pearson x2 goodness of fit test. and then it establishes the distributing sections of the error of each assessment factor. meanwhile it expatiates the criteria of simulator coach ' s subjective judgments

    第四章主要對大量的原始數據進行統計分析，採用peanonx 『擬合檢驗方法，獲得了各評估要素的概率分佈函數，繼而分別確定了各評估要素的誤差分佈區間，同時也對教練員的主觀判斷標準進行了闡述。
  8. In this study, two geometric correction methods are introduced. based on the characteristics of modis data, geo - location of the experimental area, and the error distribution patterns of different projections, we conclude that the albers conical equal area projection is feasible for the geometric correction

    並對製作我國modis遙感影像圖時的投影方式選取問題進行了討論，通過分析modis數據的特點和用途、根據應用區域的地理位置以及各種投影方式的誤差分佈模式，確定在幾何校正的過程中使用亞爾勃斯（ albers ）等積圓錐投影。
  9. On the loess plateau, water is the main limiting factors for vegetation growth. root distribution characters have special ecological meaning as it reflected the utilizations of trees to the environments. even - aged stands of robinia pseudoacacia on slope lands facing south and north were selected as sampling plots for root distribution investigation. investigatiing results showed that indicated that on all sites, root biomass decreased with depth, and the distribution depth of fine root was deeper than that of coarser root. the results of variance analysis indicated that there were great differences in root biomass among different diameter classes, and coarser root was the main sources of variance, and the root biomass, especially fine root ( < 3mm ) biomass on northern exposition sites was bigger than that on southern exposition sites. analysis of the vertical root distribution parameters, root extinction coefficient, indicated that the value of on northern exposition was more than 0. 982, while the value of on southern exposition was less than 0. 982, which indicated that the vertical root distribution depth of robinia pseudoacacia on southern exposition was deeper than that on southern exposition. and the distribution depth of fine roots ( < 1mm ) was deeper than that of thicker roots ( < 3mm ), which was in favor of the uptake of water and nutrients from deeper layers, helped the trees to adapt the arid environment, and promoted the growth of the upper parts of the tree

    在中國西北黃土高原地區，水分是樹木生長發育的主要限制因子.根系分佈特徵由於反映了樹木對環境條件的利用程度而具有更加特殊的生態意義.本研究選擇陽坡和陰坡不同立地上年齡一致的刺槐林調查了根系分佈特徵.根系垂直分佈特徵的調查結果表明，在所有立地上，根系生物量隨著深度的增加而降低，其中細根的分佈深度大於粗根的分佈深度.方差分析結果表明:不同立地上不同徑級根系的分佈特徵也有明顯的差別，粗根是差異存在的主要原因，陰坡立地上的根系生物量，特別是細根生物量大於陽坡立地上的.對根系消弱系數的分析結果表明，陰坡立地上的根系消弱系數大於0 . 982 ，而陽坡立地上的根系消弱系數小於0 . 982 ，說明陰坡立地上刺槐根系的生物量在深層土壤中的分佈相對量更大一些.其中細根的根系消弱系數大於粗根的，這種根系分佈特徵有利於根系對深層土壤水分養分的吸收利用，進而促進樹木地上部分的生長發育.圖3表3參15
  10. Abstract : on the loess plateau, water is the main limiting factors for vegetation growth. root distribution characters have special ecological meaning as it reflected the utilizations of trees to the environments. even - aged stands of robinia pseudoacacia on slope lands facing south and north were selected as sampling plots for root distribution investigation. investigatiing results showed that indicated that on all sites, root biomass decreased with depth, and the distribution depth of fine root was deeper than that of coarser root. the results of variance analysis indicated that there were great differences in root biomass among different diameter classes, and coarser root was the main sources of variance, and the root biomass, especially fine root ( < 3mm ) biomass on northern exposition sites was bigger than that on southern exposition sites. analysis of the vertical root distribution parameters, root extinction coefficient, indicated that the value of on northern exposition was more than 0. 982, while the value of on southern exposition was less than 0. 982, which indicated that the vertical root distribution depth of robinia pseudoacacia on southern exposition was deeper than that on southern exposition. and the distribution depth of fine roots ( < 1mm ) was deeper than that of thicker roots ( < 3mm ), which was in favor of the uptake of water and nutrients from deeper layers, helped the trees to adapt the arid environment, and promoted the growth of the upper parts of the tree

    文摘:在中國西北黃土高原地區，水分是樹木生長發育的主要限制因子.根系分佈特徵由於反映了樹木對環境條件的利用程度而具有更加特殊的生態意義.本研究選擇陽坡和陰坡不同立地上年齡一致的刺槐林調查了根系分佈特徵.根系垂直分佈特徵的調查結果表明，在所有立地上，根系生物量隨著深度的增加而降低，其中細根的分佈深度大於粗根的分佈深度.方差分析結果表明:不同立地上不同徑級根系的分佈特徵也有明顯的差別，粗根是差異存在的主要原因，陰坡立地上的根系生物量，特別是細根生物量大於陽坡立地上的.對根系消弱系數的分析結果表明，陰坡立地上的根系消弱系數大於0 . 982 ，而陽坡立地上的根系消弱系數小於0 . 982 ，說明陰坡立地上刺槐根系的生物量在深層土壤中的分佈相對量更大一些.其中細根的根系消弱系數大於粗根的，這種根系分佈特徵有利於根系對深層土壤水分養分的吸收利用，進而促進樹木地上部分的生長發育.圖3表3參15
  11. Secondly, it establishes the statistical mathematic models of the error of each assessment factors by means of non - parameter hypothesis test, and further divides the distributing sections of the error

    其次，運用數理統計的方法，利用非參數的分佈假設檢驗建立各個評估要素的誤差統計數學模型，劃分誤差分佈區間。
  12. The critical error has been found through computation, which is the error circling the gear. the load sharing characteristics of two kind of star - type gearing train has been determined through comparison. based on computation, the load sharing capability of two - stage external gear train is better than that of two - stage internal and external gear train

    其次，從靜力學的角度分析了各誤差對系統均載性能的影響，比較了各誤差對系統均載性能影響的大小，得到了較大的影響系統均載的誤差因素，即圓周方向分佈的誤差；比較了兩種星型齒輪系統的均載性能，根據計算結果，兩級外嚙合傳動系統的均載性能要好於兩級內外嚙合傳動系統。
  13. Knowing the bottom parameters, the influence of the mismatch of the bottom parameters for the inverted water sound speed and the relationship of the statistical distribution between bottom parameters errors and inverted water sound speed errors are studied using modal wave number tomography scheme

    應用簡正波波數層析方法，在海底參數已知的條件下，研究了海底參數失配對反演的水體聲速的影響，以及海底參數誤差分佈與反演的水體聲速誤差分佈的關系。
  14. In this research, error distribution and size is being used to design this measure instrument

    研究中對測量儀採用誤差分佈與大小去指導設計的方法。
  15. This paper employs differentiation transformation and the method of differentiating completely homogeneous coordinate transformation to set up errors equations group, the discussion of the errors of double - triangle pkm is conducted

    本論文應用微分變換和齊次坐標變換的全微分建立誤差方程組，討論了雙三角形並聯機構的位姿誤差分佈。
  16. Based on the characteristic of system, the antenna is designed with one transmitter and two receivers and the localization principle of twsr is analyzed. target localization algorithm and error distribution computing method based on time - only - localization ( tol ) are proposed

    同時根據系統特點，天線採用單發雙收方式，分析了穿墻探測雷達定位原理，提出了基於波達時間（ tol ）的目標定位演算法和誤差分佈計算方法。
  17. The result of a discussion about the statistical distribution shows there are different distribution forms between the data errors and estimated parameters in non - linearity inversion. the precision of estimated bottom sound speed is well than the estimated bottom density. although there is a same data errors distribution in perturbative inversion, the distribution of each inverted eof coefficient is different

    統計誤差分佈的討論結果顯示：在非線性反演方法中，數據空間誤差分佈與參數空間誤差分佈不相同，這種匹配方法估計的海底聲速的準確性好於對密度估計的準確性；在擾動反演演算法中，相同的數據誤差分佈條件下，反演的eof各項系數誤差分佈不同。
  18. So a computer - aided alignment method for a series of reference lens is studied in detail in this paper. based on analyzing the optical quality affecting factors and optical design, the folio wings are described in detail in this paper : ( 1 ) how to choose merit function of optical quality in terms of the specific reference lens, and sensitive structure parameters to optical quality would be determined according to their tolerance data ; ( 2 ) discussing the relationship between the aberrations and the misalignment of reference lens ; ( 3 ) building the mathematical model for the misalignment optical system, and then calculating the misalignment value by the alignment software compiled on zemax and matlab platforms ; ( 4 ) experiments are made to examine the computer - aided alignment method. the theoretical and experimental data and plots are given in the paper

    本文在分析標準球面透鏡的設計及其光學質量的影響因素基礎上，開展了以下四個方面的研究： （ 1 ）根據系列標準球面透鏡的具體結構特點，選擇透鏡的質量評價指標，研究標準球面透鏡的公差分佈，確定敏感結構參數； （ 2 ）研究光學質量評價指標與失調量之間的函數關系； （ 3 ）建立數學物理模型，根據球面波的實測結果，求解待調系統的失調方位和量值，研究原理上實現計算機輔助裝調的可能性，在zemax和matlab平臺上編寫輔助裝調軟體； （ 4 ）建立實驗裝置，實際研究標準球面透鏡的計算機輔助裝調方法，文中給出相應的理論分析及實驗數據和曲線。
  19. The matching rate of the suggested two methods were compared for the assembly size chaims with different number of the forming links, with different number of the forming link parts, and with different deviation distribution types on the assumption that the closing link tolerance of the selective assembly is a tenth of that calcalated by the extremum method

    以不同組成環數、不同組成環零件數、不同偏差分佈類型的裝配尺寸鏈為研究對象，取選擇裝配的封閉環公差為按極值法計算所得封閉環公差的十分之一，以匹配率為評價指標，比較了兩種方法的優劣。
  20. 2 ) evaluation of robustness against noise removal attack. by analyzing the mathematical models of noise removal attack, we deduce some indexes for robustness evaluation defined in frequency domain, power spectrum and locally variances of difference images. 3 ) evaluation of the detectability of lsb information hiding algorithm

    考察了密信信號隱藏后差值圖象的頻域特性、功率譜特性和局部方差分佈特性，建立了頻域特性與線性濾波攻擊效率、功率譜特性與維納濾波攻擊效率、局部方差分佈特性與最大后驗估計攻擊效率之間的關系。
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