dispersion of numbers 中文意思是什麼

dispersion of numbers 解釋
數值的離差
  • dispersion : n 1 分散,散開;散布,傳播;離散。2 【物理學】彌散,色散;【化學】分散作用;被分散物;分散相,分...
  • of : OF =Old French 古法語。
  • numbers : n. 【聖經】民數記〈=the book of Numbers, 略 Num. 或 Numb. 〉。
  1. In local vector match method, we add the line numbers and the dispersion of direction angle between the center point and near minutiae point. we also add the direction angle of the center point. these additions enhance veracity of the minutiae feature matching

    在局部向量特徵匹配法中加入了中心點與鄰近特徵點的紋線數,方向角差,中心點的方向角等特徵信息,提高了特徵匹配的準確性。
  2. Thus, according to the maximum dispersion distance and the allowable miss distance given, the magnitude and class numbers of impulse control force is selected

    根據最大散布誤差和最大脫靶量指標選擇脈沖控制力大小,並對脈沖發動機分級。
  3. The general nonlinear propagation equations of four - lightwaves in birefringent fibers are deduced. the characteristics of polarization mode dispersion in 4 + 10gb / sdwdm system in dispersion - flattened fibers is studied. our results show that pmd exerts a detrimental influence on 4 x logb / sdwdm system in limiting transmission rate and the channel numbers

    本論文研究波分復用( wdm )系統中偏振模色散的影響,主要工作包括下面兩個部分:一、導出了四波長光波在雙折射光纖中傳輸所滿足的一般非線性耦合方程;在此基礎上,研究色散平坦光纖中4 10gb sdwdm系統的偏振模色散特性,並且進一步研究了偏振模色散對不同通道間隔的4 10gb sdwdm系統的影響。
  4. Abstract : the hot wire anemometer and the ensemble average method are used to measure and study the dispersion turbulent transient feature in a closed cylindrical explosion bomb. the comparison of the dispersion turbulent parameters from different shapes of closed explosion bombs is presented. the relation between errors and numbers in dispersion turbulent measurement with the ensemble average metod is discussed

    文摘:採用熱線風速儀和系綜平均法測定和研究了封閉圓柱形粉塵爆炸罐內揚塵湍流的瞬態特性,並與球形爆炸容器內已測定的揚塵湍流瞬態特性進行了比較,對系綜平均法用於揚塵湍流的測量誤差與測量次數的關系進行了探討。
  5. Abstract : a continuity wave model is put forward for the dispersion processof liquid - liquid two - phase system, by coupling mass and momentum conservation equations of two - fluid model. the conditions that result in a dispersion choke and the weak instability of a dispersion process are derived from the model. the phenomena of catastrophic inversion and transitional inversion are explained. the effect of drop size distribution on the maximum volume concentration of a emulsion is predicted using the model. according to the theory herein, emulsion inversion is the regime transition of liquid - liquid system due to the instablity of a dispersion process. the effect of drop size distribution on the maximum volume concentration of a liquid - liquid emulsion only occurs in a certain range of weber numbers

    文摘:以雙流體模型為基礎,通過質量守恆方程和動量守恆方程的耦合,提出了液-液兩相系中彌散傳質的連續波模型.由該模型得到彌散傳質過程阻塞和彌散傳質過程弱不穩定性產生的條件,計算了液滴尺寸及其分佈對乳化液極大堆砌分數的影響,解釋了劇變型乳化逆變和漸變型乳化逆變現象.研究結果表明,乳化逆變是由於彌散傳質過程的不穩定性而引起的懸浮體型態的改變,隨液滴尺寸多分散性的增大,極大堆砌分數增大;隨液滴平均尺寸的增大,多分散性對極大堆砌分數的影響減弱;當韋伯數足夠大時,液滴尺寸及其分佈對乳化液極大堆砌分數無影響
  6. Influences on the hitting probability by error of carrier, by dispersion of sub - projectiles, by size of target, by the numbers of sub - projectiles, and by the range of fire are analyzed

    分析了母彈的射擊誤差、子彈的散布誤差、目標幅員、重迭度、子彈攜帶量及射距離對子母彈首發命中概率的影響。
  7. At the same timejt is proposed that the mean error, maximum error and minimum error of the last 8 numbers between the measured results and predicting results are used as criteria in order that we can select the optimum model judge the accuracy and dispersion of measured results

    在模型比選時,提出用實測值與預測值的后八項的平均誤差,最大和最小誤差來選擇最優模型並判斷其準確性以及實測數據選取的離散性。
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