質量二次矩 的英文怎麼說

中文拼音 [zhíliángèr]
質量二次矩 英文
second moment of mass
  • : Ⅰ名詞1 (性質; 本質) nature; character; essence 2 (質量) quality 3 (物質) matter; substance;...
  • : 量動1. (度量) measure 2. (估量) estimate; size up
  • : Ⅰ數詞(一加一后所得) two Ⅱ形容詞(兩樣) different
  • : Ⅰ名詞1 (次序; 等第) order; sequence 2 [書面語] (出外遠行時停留的處所) stopping place on a jou...
  • : 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
  • 質量 : 1 [物理學] mass 2 (產品或工作的優劣程度) quality 3 economy (離子源的); 質量標準 quality level...
  1. An algorithm for matching the esprit ' s estimation of two - dimensional angle by using twice svd and once schur is proposed. using two row uniformity sensor - arrays and adding one sensor, the algorithm decomposes the array twice and exploits rotational invariance properties of signal space, so that both angles may be computed via matrix pencil method, and these estimates are automatically paired. simulation results are presented to verify the efficacy of the proposed algorithm

    首先針對esprit演算法對窄帶源進行維doa估計存在測向冗餘的情況,提出了一種改進演算法,該演算法利用子陣信號數據陣中包含的信號空間的旋轉不變性,藉助于陣束方法求解出信號的維到達角,並且利用兩奇異值及一schur分解從而實現了esprit維doa估計參的自動配對; 2
  2. And use relative fitting error to measure statistical data non - uniform error ; then introduce the method systematically of using the fuzzy comprehensive evaluation method to carry on the overall superior test of the government statistical data quality. includes the establishment of step level appraisal target system, target weight determination, calculates the factor weight in various levels, uniform test of judgment matrix, and built up the final fuzzy comprehensive evaluation model of the government statistical data quality according to the above - mentioned standard ; finally selects the partial main social economy total quantity target from chinese statistics yearbook 2003 to carry on the real diagnosis analysis : ( 1 ) confirm these social economy total quantity targets using the description statistics and the k - s inspection method to obey the lognormal normal distribution. ( 2 ) according to the two levels of inspection methods which this article proposed to carry on accuracy and the overall superior test for these social economy total quantity targets

    本文首先從統計數據及的涵義出發,全面系統的介紹了統計數據的概念;其,從研究統計數據的分佈規律入手,對統計數據準確性檢驗問題進行了探討,利用對數正態分佈檢驗對反映研究對象規模大小的統計數據的及異常數據進行定檢查和識別,並利用相對擬合誤差計統計數據的非一致性誤差;接著系統介紹了利用模糊綜合評價方法對政府統計數據進行整體優度檢驗的思路,具體包括建立遞階層的評價指標體系,指標權重的確定,計算各層中因素的權重,判斷陣的一致性檢驗,並根據上述標準建立了最終的政府統計數據模糊綜合評價模型;然後通過從2003年中國統計年鑒資料中選取部分主要的社會經濟總指標進行實證分析: ( 1 )利用描述統計和k - s檢驗法來驗證這些社會經濟總指標服從對數正態分佈的規律; ( 2 )按照本文提出的級檢驗法來對這些社會經濟總指標進行準確性和整體優度檢驗,從而達到綜合評價政府統計數據的目的;最後對這種級檢驗法的優點和不足進行小結,提出今後應該努力改進的方向。
  3. The latest scheme for objective analysis and mathematical model of quadratic 8 spline connecting line is using for improving analysis quality. plotting test have shown that this scheme has the characteristics such as reasonable design, high quality in map analysis

    一是採用三角形、形面積插值方案,並加入物理原則,提高了客觀分析是聯線數學模型採用樣條函數,大大改善了等值線的光滑和均勻度;三是屏幕等值線修改採用人機對話方式,操作十分方便。
  4. But dtc is a kind of the more advantageous control technology that places stress on controlling the torque of the motor directly, which overcomes the disadvantages of vc and brings the second natural fly - by of the speed regulation control theory of ac motor

    直接轉控制是一種更先進的控制技術,它不需要解耦電機數學模型,強調對電機的轉進行直接控制,在很大程度上克服了矢控制的缺點,成為交流電機調速控制理論第的飛躍。
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