equivalent transformation 中文意思是什麼

equivalent transformation 解釋
初等運算
  • equivalent : adj 1 相當的，相同的，同等的。2 【化學】等價的，當量的；【數學】等價的；等量的；等勢的；【物理學...
  • transformation : n 轉變，變化；變形；【生物學】（尤指昆蟲的）轉化，變態，改造，改革；變質；【數學】變換；【電學】...
  1. Then the dynamic weighing system is equivalent to system that is time changeing and non - linearity syetem, dynamic mathmatic model is established by analysis. for the system is the arma model, parameter identification method of adaptive least square based on householder transformation is adopted

    然後，將動態稱重系統等效為二階系統，分析得出了系統為時變非線性系統，推導出了其動態數學模型，並且根據系統為arma模型，將問題轉化為參數辨識問題。
  2. Second, the dissertation addresses the global query rewriting issues of the service oriented spatial data integration. query rewriting and optimization methods are presented based on equivalent transformation of relational operators. we study the data replication issues of spatial data services and presents strategies to deal with data fragmentation and service selection

    其次，論文研究了面向空間數據服務集成的全局查詢重構問題，在關系代數等價變換基礎上提出了空間數據服務全局查詢重構和優化方法，並提出了面向分散式空間區域查詢的副本處理方法和資源選擇策略。
  3. 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。
  4. By means of equivalent transformation of conjugate condition, the conjugate mapping proc ess is separated from the concrete forms of generator and conjugate movement th us achieved intellecturalization and automatization of synthesis of conjugate cu rves

    通過共軛條件的等價變換，將共軛映射過程與母曲線及共軛運動的具體型式隔離開來，從而達到共軛曲線綜合的智能化、自動化。
  5. ( 3 ) based on the formulae obtained above, a series of theoretically equivalent form transformation is done, and the results which are more suit for programming are acquired

    （ 3 ）對應用力密度法找形的基本公式進行了一系列的等價變換，得出了更加適合於程序編制的結果。
  6. An approach to formalize and evaluate relational algebra operations by means of xdd is presented. a query is formalized as one or more xml clauses and evaluated by employment of equivalent transformation of xdd

    提出了根據關系代數表達式構造查詢子句的方法，關系代數表達式可以用若干個xml子句描述，並通過等價變換得到查詢結果，證明了該方法的正確性。
  7. A powerful tool of dynamical system analysis named normal form method is presented in this dissertation, and then it was used to analyze oscillation phenomena in interconnected power grids. using nonlinear coordinate transformation of normal forms, a fully described power system can be converted to an equivalent reduced order model, which can still use the conventional modal analysis of small signal stability problems

    論文將動力系統非線性分析的正規形理論應用於互聯系統低頻振蕩分析中，利用正規形方法的非線性坐標變換，將高階電力系統轉化為等價的低階系統，在保留非線性信息的同時，使其仍然可以使用常規小信號穩定研究的模式分析方法。
  8. Abstract : a numerical model for wave propagation in water of varying topography and current is proposed, and time - dependent wave mild - slope equation with a dissipation term and corresponding equivalent governing equations are presented. two different expressions of parabolic approximations for the case of the absence of current are also given and analyzed. examples of numerical simulation for wave transformation in large estuarine water areas are provided

    文摘:提出了水深與流場緩變水域波浪傳播數學模型水流中依賴時間變量並考慮能耗的波浪「緩坡方程」及其等價的控制方程組，分析比較了無水流情況此理論模型與其相應的兩種拋物型近似的差別，提供了長江口波浪變形數值模擬計算工程實例.實例表明，該模型能適應河口三角洲大范圍水域波浪傳播數值計算
  9. The dissertation discusses some theories of computation including the unit stiff matrix of the spatial member in the local coordinates ， the coordinate transformation, the integration of the integer stiff matrix ， the equivalent joint load ， the introduction of the boundary condition ， the computation of the unit internal force and support reaction ， the stableness of the spatial stiff frame. the dissertation also discusses the methods of dealing with several unusual problems such as combined structure, temperature stress ， elastic bearing

    本文論述了空間桿件局部坐標單元剛度矩陣、坐標轉換、整體剛度矩陣的集成、等效結點荷載、邊界條件的引入、單元內力與支座反力計算、空間剛架穩定的計算理論，以及組合結構、溫度內力、彈性支承等幾個特殊問題的處理方法。
  10. According to the space vector modulation method of the equivalent structure of the ac - dc - ac transformation, the transformation relations of the matrix converter are deeply investigated. the ac - ac direct conversion control and the double - space - vector pwm scheme of the matrix converter are deduced, the four - step current commutation strategy of matrix converter is expatiated, the design method of input filter and over voltage protection circuit is analyzed, and the modeling and simulation of a three - phase matrix converter are implemented

    從等效交-直-交變換的空間矢量調制方法出發，深入分析了矩陣式變頻器的變換關系，導出了交-交直接變換控制規律和雙空間矢量脈寬調制技術，闡述了矩陣式變頻器的換流控制策略，分析了輸入濾波器和過電壓保護電路的設計方法，實現了矩陣式變頻器的建模和運行分析。
  11. Besides these, it is capable of performing frequency conversion with sinusoidal output voltages and currents at the desired output frequency and allows bi - directional power flow according to the space vector modulation method of the equivalent structure of the ac - dc - ac conversion, the conversion relations of the matrix converter were deeply investigated. the ac - ac direct transformation control and the double - space - vector pwm scheme of the matrix converter were deduced and the modeling, sin ~ iu1ation and experiment of a three - phase matrix converter were implemented

    本文從等效交一直一交變換的空間矢量調制方法出發，深入分析了矩陣式變換器的變換關系，推導出了交一交直接變換控制規律和雙空間矢量pwm調制技術，實現了交一交直接變換控制方式下矩陣式變換器的建模和運行分析，並進行了計算機模擬和實驗研究。
  12. By making algebraically equivalent transformation for the standard centering equation xs = e, we obtain a new system of perturbed k - k - t equations and, for specific power transformation, recover the newton equations that are recently used by j. m. peng et al to show a lower polynomial complexity bound for large - update algorithm

    前述的兩種方法是針對擾動k一k一t系統進行的，而本文的另一種方法是採用ncp函數，直接將標準線性規劃k一k一t條件化為一個不含內點約束的等價方程組，以此改造標準攝動方程組。
  13. A mathematical transformation algorithm precisely reconstructs the spectrum with a 4x signal - to - noise improvement as compared with a slit - based system equipped with identical source, grating and detector components, and 70 - 80x greater than with a fiber input of equivalent resolution

    一個數學轉換元演算法則精確地改造了光譜，在使用相同的光源、光柵和探測原件的情況下，與傳統的基於狹縫技術的系統相比，新的光譜儀將信噪比提高了四倍，而進光量提高70 - 80倍。
  14. Through the equivalent transformation between the linear combination relation of the father - son state in the state equations and the incidence relation of the father - son state nodes in the weighted network, it is realizable to build the block contact of the general structure and the system state variable is the earliest starting time, and collect the incident matrices of the dividing branch nets in whole net, then the parameter matrices of the state space model are obtained

    通過狀態方程中父狀態與各子狀態之間的線性組合關系與塊網中父狀態結點和各子狀態結點之間的帶權父子關聯關系之間的等價轉換，實現以工序的最早開工時刻為狀態變量的系統狀態模塊和泛模塊的介面與提取總網「劃分子網」的關聯矩陣得到狀態空間模型的參數矩陣。
  15. During the course of modeling ldmos, the paper puts forward the method in which maxwell function in the static system is applied in analysis compute of ldmos threshold voltage. schwarz - chritoffel transformation method is used to solve the gate self - capacitance with limited size. at the same time, it also provides the method which computes the drain and source self - capacitance by conformal transformation and the equivalent - voltage sharing - charge model

    在對ldmos的建模過程中，本文提出了將靜電系統中麥克斯韋方程用於ldmos閾值電壓的分析計算的方法，引入了許瓦茲-克利斯多菲變換來求解了有限尺寸的柵自電容，並提出了用保角變換和等電壓電荷共享模型來計算漏與源的自電容的方法。
  16. Given a partial input, pe is an automatic transformation from a source program to another source program, which is equivalent to the original source program under the same partial input. in addition, the transformed source program is as well optimized

    這需要對snl程序依次進行詞法分析、語法分析、構造語法樹、對語法樹進行部分求值、構造剩餘語法樹和將剩餘語法樹轉換成剩餘程序等各自獨立的步驟。
  17. Matrix decomposition and equivalent transformation of nonsymmetrical optical systems

    非對稱光學系統的矩陣分解與等效變換
  18. The equivalent transformation relationship of the various adjustment model

    測量平差中各種模型的等價轉換關系
  19. Equivalent transformation of topological relations between two lines in spatial abstraction

    在空間抽象中線狀目標間拓撲關系的等價轉換
  20. Four kinds of mathematics thinking, including generalization thinking, equivalent transformation thinking, mathematics model thinking, and reversal thinking, are discussed, and some examples are given to help explaining these thinking forms

    本文主要論述了一般化的思維、等價轉化的思維、數學模型的思維和逆向思維等四種，通過一些例子來說明這些思維的過程。
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