積矩相關 的英文怎麼說

中文拼音 [jījǔxiāngguān]
積矩相關 英文
product moment correlation
  • 積 : Ⅰ動詞（積累） amass; store up; accumulate Ⅱ形容詞（長時間積累下來的） long standing; long pending...
  • 矩 : 名詞1. （畫直角或正方形、矩形用的曲尺） carpenter's square; square2. （法度; 規則） rules; regulations 3. [物理學] moment
  • 相 : 相Ⅰ名詞1 （相貌; 外貌） looks; appearance 2 （坐、立等的姿態） bearing; posture 3 [物理學] （相位...
  • 關 : Ⅰ動詞1 （使開著的物體合攏） close; shut 2 （圈起來） shut in; lock up 3 （倒閉; 歇業） close down...
  • 相關 : be interrelated; be related to; be bound up with; correlation; dependence; relevance; mutuality
  1. Pearson product - moment correlation coefficient

    皮爾森積矩相關系數
  2. The interspecific association and correlation of 36 dominant species of the wetland vegetation were analyzed by using x2 - test, pearson ' s coefficient and spearman ' s coefficient. the results shown that those dominant populations composed 630 species - pairs ; among the 36 species were herbs, and the higher significant association ' s or correlation of species - pairs were 49, 88, 71, respectively, moreover, the significant association ' s or correlation of species - pairs were 31, 9, 7, respectively

    採用x ~ 2檢驗、 pearson積矩相關系數和spearman秩相關系數等方法對濕地植物群落的種間關系研究，結果表明： 36個建群種群和優勢種群構成的630個種對（其中主要是草本植物） ，其中極顯著關聯的種對數分別為49 、 88 、 71 ，顯著關聯的種對數分別是31 、 9 、 7 。
  3. Present methods generally based on the statistics of earthquake damage, expert experiences, theory analysis and experimental researches have obvious advantages, disadvantages and certain scopes of application ; ( 2 ) different prediction methods should be adopted against different building conditions, sites, intensity and experiences etc to predict earthquake damage of buildings for prospective accuracy, dependability and availability ; ( 3 ) earthquake damage matrix, which is the foundation of earthquake damage prediction, of 7 kinds of building in the urban areas of zhangzhou city under intensity 6 to 9 has been set up. the damage conditions of different buildings under different intensity are as followings : all kinds of structures are basically intact under intensity 6 ; the reinforced concrete structures are basically intact under intensity 7, but other kinds of structures are destroyed slightly ; the reinforced concrete structures are still basically intact while other kinds of structures are destroyed intermediately under intensity 8 ; the reinforced concrete structures are destroyed slightly, single - story factories and open houses are destroyed intermediately and other kinds of structures are destroyed seriously under intensity 9 ; ( 4 ) the results of earthquake damage predicting of buildings embody the damage when earthquake happens in the future. thus, further identifications and reinforcements should be considered to buildings that will be destroyed intermediately or more under the earthquake with 10 % exceeding probability in future 50 years ; ( 5 ) the direct economic losses caused by damage of buildings resting with the area, structural type, intensity and damage of all kinds of buildings are the main part of the losses of the city in an earthquake ; ( 6 ) the direct economic losses increased progressively toward high intensity by 2 or 3 times

    基於上述研究，得出的主要結論有：建築物震害預測是一個模糊的、系統的、復雜的問題，現有的方法很多一般都是以震害統計規律、專家經驗、理論分析和試驗研究為依據，有其自身的優缺點和一定的適用范圍；應針對不同的建築物條件、場地條件、地震強度和已有經驗等，採用不同的預測方法進行建築物震害預測，以使預測結果達到預期的精確性、可靠性和可操作性；建立了漳州市區7類建築物在6度9度地震作用下的震害矩陣，成為指導抗震防災的重要依據，各類結構的震害情況表現為： 6度地震作用下各類建築物基本完好； 7度地震作用下除鋼筋混凝土結構基本完好外其餘以建築輕微破壞為主； 8度地震作用下鋼筋混凝土結構仍以基本完好為主而其餘建築以中等破壞為主； 9度地震作用下鋼筋混凝土結構以輕微破壞為主，單層工業廠房和空曠房屋以中等破壞為主，其餘建築以嚴重破壞為主；建築物的震害預測結果體現了未來地震來臨時的震害程度，在編制漳州市區抗震防災規劃時，對于遭遇50年超越概率10的地震影響發生中等以上破壞的建築物應考慮進行抗震鑒定和加固；由建築物的破壞所造成的直接經濟損失是城市地震經濟損失的主要部分，重慶大學碩士學位論文中文摘要其主要與建築物總面積、結構類型、地震烈度和各類建築物的震害程度有關;不同烈度造成的直接經濟損失按2一3倍向高烈度方向遞增，漳州市區直接經濟損失由6度至9度的比例關系為1 : 2 . 8 : 8 . 6 : 22 . 8 ;遭遇基本地震設防烈度（ 7度）時，漳州市區直接經濟損失約4 . 5億元，無家可歸人員約40000人，且以磚木結構和多層磚混結構的震害損失最大;地震造成的人員傷亡主要與建築物倒塌及嚴重破壞的程度和總面積以及震時的建築物室內人數密切相關，地震時無家可歸人員主要與住宅倒塌、嚴重破壞及中等破壞的程度和總面積以及城市人均居住面積密切相關。
  4. In order to make the theoretical calculation feasible, we first obtain an analytical formalism of partial integrals with respect to the coordinates of the core and target in the phase - shift functions and their cross terms of scattering matrix elements, if the density distributions of the core and target are fitted to a few gaussian forms. then the rest multidimensional integrals with respect to the impact parameter and coordinates of halo nucleons are performed by a monte carlo method

    為使理論計算變得可行，我們在核芯和靶核密度採用多個高斯分佈擬合的情況下，解析求解了各個散射矩陣元中的光學相移函數及交叉項含有的與暈核核芯、靶核密度分佈有關的積分;同時對與碰撞參數和暈核子坐標有關的積分（八重以上，並且積分維數隨暈核子數很快增加）採用蒙特卡洛方法計算。
  5. After a careful comparison we found : ( 1 ) rotating the coordinate system around the z - axis for each event is necessary for the relaxation of the correlation between thrust ( or sphericity ) major - minor frame and the direction of the first hard gluon emission. ( 2 ) the horizontal factorial moments ( hfm ) are equivalent to the vertical ones ( vfm ) only after cumulant - variable transformation. therefore, in the study of nonlinear phenomena in high energy collisions the hfm can be used only in combination with the cumulant variables

    工jlnfy4ww ； 6標系與發射第一個硬膠子之間的關聯效應，從而觀察到全部強度的動力學起伏；證明了：只有在引入累積變量以後，橫向矩才等於縱向矩，從而也才等效于幾率矩，困而只有在這時，橫向矩才能被使用；論證了：對eb對撞末態粒子系統動力學起伏的研究只能在全相空間進行，而不能用限定的相空間，因而只能採用丟掉最初的一個或幾個點的方法消除動量守恆對相空間標度特性的影響。
  6. In the use of the recurrence definition and the matrix presentation of nurbs curve, the algorithm of curve is outlined from the correspondent algorithm of b - spline, concerning on the evaluating, derivative, integral, knots inserting and degree elevating

    利用nurbs曲線基函數的定義和nurbs曲線的矩陣表示，從b樣條的相關演算法出發，可解決nurbs曲線的求值、求導、求積演算法和nurbs曲線的節點、升階演算法等問題。
  7. On the other hand, the results of asphalt four components analysis experiments indicate that using the ratio of resin and aspartames to evaluate the asphalt adhesion is reasonable and sound. at the same time, the author makes use of rectangular reference frame to analyze the correlation between the asphalt four components and the adhesion ; and it can be concluded that the rectangular area of the asphalt four components in rectangular reference frame has good relations with the asphalt adhesion

    通過對瀝青的四組分分析，試驗結果表明：採用膠質與瀝青質的比值來評價瀝青的粘附性是可行的；同時，提出利用矩形坐標系來分析瀝青的四組分和粘附性之間的內在聯系，結果表明：矩形坐標系下瀝青四組分的四邊形面積與其粘附性有相當好的相關性。
  8. And then, the esprit bearing estimation problem. is reformulated using fourth - order cumulant matrices instead of auto - correlation matrices. by doing so, the fourth - order cumulant matrices of additive colored gaussian noises can be suppressed

    在此基礎之上，將esprit方法擴展到四階方法，用四階累積量矩陣代替自相關矩陣，實現對加性有色高斯噪聲的抑制，提高演算法的估計精度。
  9. Instead, there needs to store only the original coefficient matrix, some auxiliary matrices for the preconditioner and several vectors in the iteration methods. further, the core of the iteration is the matrix - vector multiplication and the solution of the auxiliary equations corresponding to the preconditioner. if the solution of the auxiliaries spend not very much, the computational cost in each iteration step will be very cheap, due to the fact that the sparsity of the matrix can be exploited sufficiently

    與直接法相比，迭代法只需存儲原系數矩陣、對應于預處理的幾個輔助矩陣與少量幾個向量，且迭代中除求解輔助線性方程組外，其餘的計算主要是稀疏矩陣與向量乘積，從而能充分利用稀疏性減少計算量，但迭代法的收斂速度一般與系數矩陣的譜分佈有關。
  10. Second, to solve the local stability problem of the bar under pressure, a function relationship between the sectional area and the inertia moment is established by using the similar transformation. accounting to the critical pressure stress, iterative formulas are derived which include big, middle and small flexible degree

    其次，對于桁架結構中受壓桿件的失穩破壞，本文提出採用相似變換方法找到截面積與慣性矩的關系，根據壓桿的臨界應力分別導出大、中、小柔度的迭代公式，設計出壓桿的截面積。
  11. Abstract : some rules of example space and expounds some theorems are revealed. it explains that we figure out suitable of example sets if only explore a small quantity of item of example sets, thereby, it avoids to scan to scan every example, and only save a small quantity of item not huge example stes

    文摘:揭示了例子空間中存在的一些規律，並歸結為若干定理，表明了只要考察少量的覆蓋任一示例集的項便可計算出與該示例集相關的評價矩陣，從而避免了對逐個示例的掃描，而且在演算法的實現上只需保存相對少量的項而不是體積龐大的示例集
  12. In this paper, we speed up lahe by presenting two slight modifications of the algorithm. firstly, in the computation of the local histogram, once a - by - square has been computed, the histogram for each successive square can be computed using only additions and subtractions

    首先，在計算相關區域的直方圖時，通過平移矩形區域減少了計算直方圖所需的時間；其次，由於變換函數就是累積直方圖，所以計算變換后的灰度時，利用對分的思想可以將效率進一步提高。
  13. Secondly, the adaptive integral method is studied in detail. the two key techniques used in aim are introduced in roundly. they are : fast and efficient solutions of auxiliary basis function, and fft used to accelerate the computation of toeplitz matrix and vector multiplication

    接著，詳細研究了自適應積分方法的基本原理和數值實現方法，並深入研究了數值實現中的兩個關鍵問題:輔助基函數的快速精確求解和fft加速多層拓撲利茲矩陣與矢量相乘的計算。
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