variable transformation 中文意思是什麼

variable transformation 解釋
變量變換
  • variable : adj 1 易變的，變化無常的，無定的 （opp constant steady）。2 可變的，能變的；變換的。3 【數學】變...
  • 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. Based on the endogenous growth theory, this paper views technologica 1 progress as an endogenous variable in the comparative advantage model, and therefore s ets up a more systematic comparative advantage theory to the extent of investment, divisi on of labor and institution. third, it has analyzed the trade structures based on different c omparative advantage strategy, made an empirica l study of china ' s foreign trade structure, and concluded that although china ' s export structure at present is characterized by capita l - technology intensive goods, these goods have the comparative disadvantages from now to the near future in china, which means that trade structure transformation in less develo ped countries should be based on endogenous comparative advantages. finally, it has disc ussed the strategy and paths of china ' s transformation of foreign trade structure

    本文借鑒內生經濟增長理論的邏輯思路，將技術進步在比較優勢模型中內生地決定，分別從投資、分工與制度三個層面建立了較為系統的內生比較優勢理論；再次，對其于不同比較優勢理論的貿易結構進行了剖析，對中國外貿結構進行了實證分析，認為盡管中國現在出口商品結構是以資本技術密集型產品為主，但中國在目前乃至將來的一定時期內的資本及技術密集型產品上仍將處于比較劣勢，發展中國家貿易結構的轉換必須基於內生比較優勢；最後，探討了中國對外貿易結構轉換戰略與路徑。
  2. This text aims to establish mathematics model, everyday randomicity variable to be set up by the discrete transformation method, to set up the simulation parameter form and the moleling and covariance form, draw the procedure flow chart to proceed simulative newspaper calculator problem

    摘要通過建立數學模型、運用離散反變換法產生每天賣報數隨機變量、建立模擬參量表和建模及統計變量表、畫出程序流程圖等步驟對報童問題進行模擬。
  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. The model control input information according as output information measure up ( related faction ). matter - element transformation which made contradiction problem convert resolved problem exploit relevant strategy set. it make use of the strategy to solve existence problem in production controlling, thereby operating variable convert measure from fail field

    該模型以控制輸出信息的合格度（關聯度）作為確定控制輸入矯正量的依據，利用物元的可拓性，通過物元變換化矛盾問題為相容問題，從而開拓出有關的策略集，解決生產控制中存在的問題，使被控變量從不合格範圍轉化到合格範圍內。
  5. Firstly, in the paper a family of integral solution representing ultrashort pulsed beam propagating in free space have been studied by using the co - moving frame coordinates and the fourier transformation for time variable in terms of well - known paraxial approximation. and the pulsed gaussian - like beam solution can be obtained as a especial solution of the integral solution, where including the pulsed gaussian beam

    首先利用傅立葉變換和惠更斯-菲涅爾衍射積分公式，我們給出了傍軸標量場近似下超短脈沖光束傳輸的基本積分解，並進一步得到了用卷積形式表示的脈沖類gauss光束解（ pulsedgaussian - likebeam ）的普遍形式解。
  6. ( 1 ) based on two types of riccati equations, two kinds of new methods are proposed to obtain solutions of nonlinear differential equations. twelve families of exact solutions of wbk equation are found by using one of two methods ; ( 2 ) the homogeneous balance method is improved cind investigated to ( 2 + l ) - dimensional broer - kaup equation such that many families of new solutions are derived. ( 4 ) based on the isospectral lax pair of riccati form for generalized kdv equation with the force term, new darboux transformation and solitary - like wave solutions and rational solutions are obtained ; ( 4 ) by constructing darboux transformation and the superposition formula of generalized variable coefficients kdv equation with the force term, new single solitary - like wave solutions, double solitary - like wave solutions and rational solutions are found for ( 2 + l ) - dimensional generalized kp equation

    第二章和第三章考慮非線性偏微分方程的精確解的構造：首先給出了c - d對和c - d可積系統的基本理論，然後在第三章中具體研究了它們的應用： （ 1 ）基於兩種riccati方程，提出了兩種新的求解非線性微分方程更多解的方法，利用其中的一種方法，得到了wbk方程的12組精確解； （ 2 ）對齊次子衡法進行改進，以致於獲得了（ 2 + 1 ） -維broer - kaup方程的很多新解； （ 3 ）基於帶有外力項的廣義kdv方程的riccati形式的非等譜lax對，提出了該方程的一個新的darboux變換，利用該變換，得到了新的類孤波解和有理解； （ 4 ）通過構造了帶有外力項的變系數kdv方程的darboux變換及疊加原理，獲得（ 2 + 1 ） -維廣義kp方程的新的類單孤波解、雙類孤波解和有理解。
  7. 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。
  8. Transformation of motor ' s cooling fan variable - frequency system and the results

    機組冷油器系統改造
  9. Then the mathematical problem of nonlinear heat diffusion with temperature dependent thermal conductivity has been derived during laser irradiation of two - layer structures. to solve this problem, a kirchhoff transformation and further time variable transformation has been used

    於是，文中還用有限容積法將溫度場定解問題離散化，選擇合適的空間網格和時間網格，通過matlab編程實現對四維溫度場的數值模擬。
  10. Abstract : a design method of a multi - variable inferential controller based on anew performance index is proposed. the inferential controller uses a v type control structure to avoid inverse transformation of rectangle arriving. this multi - variable inferential control system has the characteristic of simple calculation and only an adjustable parameter q array. this control system output gets the performance of dynamic decoupling of the mutivarable system

    文摘:在一種新的性能指標下，提出了一種多變量推理控制器的設計方法，該控制器採用的v規范型控制器結構避免了傳遞函數矩陣求逆問題.該類多變量推理控制系統的特點是演算法簡單、僅具有一個可調參數矩陣q ，該系統實現了多變量系統的動態接耦
  11. The main original work includes : 1. with laplace transformation, the solution for longitudinal vibration of a pile with variable cross - section is derived when surrounding soil is simulated respectively with normal voigt model and normal maxwell model

    主要工作包括： 1 、採用拉氏變換法分別得到了標準voigt模型和標準maxwell模型條件下成層土中任意段變截面樁縱向振動解。
  12. Applying ftp transformation may acquire adequate precision for dealing with steady variable signal in fault diagnosis of woodworking machine tool field. but ftp transformation ca n ' t completely reflect time change characteristic of signal in unsteady process

    在木工機床的故障檢測與診斷領域中對于平穩隨機信號的處理，採用傅立葉變換可以具有足夠的精度，但傅立葉變換難以全面反映非平穩過程的時變特性信號。
  13. When mapping from design variable space to quality attribute space in the stage of concept evaluation of product design, the combing qualitative and quantitative method, rough set based mapping method and physical model experimentation based mapping method are studied. when making physical model experimentation, the transformation method of system condition is put forward for the first time

    從設計變量空間到質量屬性空間的映射角度，提出了定性定量相結合的分析方法；研究了基於粗集理論的映射方法；研究了基於物理模型試驗的映射方法，並首次提出了進行物理模型試驗設計時的系統條件變化方法。
  14. In this paper, two important modifications in dct - based coding algorithm are suggested after making deep study on the generally used scheme of h. 263 coder. first, we find plenty of invalid computation in the transformation part of the h. 263 coder and an improved scheme based on the pre - transform decision to avoid invalid computation is proposed. second, in the motion estimation part of the coder, we find that normal search algorithms are not effective, which neglects different levels of motion in image sequences, and we suggest a new search algorithm which has variable search region based on the difference of motion level. combining the pre - transform decision scheme with variable search region method in motion estimation, a global decision coding scheme is provided, which greatly increases the coding speed of h. 263 coder

    本文對h . 263編碼演算法的現有實現方法作了深入的分析，首先發現變換部分存在大量無效運算，提出了在變換前加判決的前變換判決的編碼方案，以壓縮無效的變換運算；其次發現運動估計部分由於忽略了圖像場景的分級運動而存在一定的無效搜索運算，提出了基於分級運動的可變搜索域法來壓縮無效的搜索運算；最後將前變換判決方案與運動估計的可變搜索域法有機地結合在一起，提出了全局判決編碼方案，從而比較全面地改進了現有實現方法，因而能大幅度地提高編碼器的編碼速度
  15. Third, to make the vehicle meet the performance index in full flight envelop, a h gain - scheduled controller based on linear varying parameter ( lpv ) system are designed. a lpv plant with a linear fractional dependent variable can be represented by upper lft ( linear fractional transformation ) interconnection. with this technique, the overall control problem can be transformed to a traditional robust control problem, and the ultimate results are given by solving a series of linear matrix inequalities ( lmis )

    通過把非線性系統簡化為了線性變參數系統（ lpv ） ，再有通過線性分式變換（ lft ）將lpv系統轉化為一個線性定常系統和不確定性組成的lft互聯形式，使之轉換成為一個經典魯棒控制問題，然後通過求解一組線性矩陣不等式（ lmis ）得到變增益h _控制器。
  16. When user defined functions ( udfs ) are involved in the join predicate, the algorithms for the computation of relational joins can not be used directly. in the paper, the restricting transformation function r, is defined, which can restrict some variable ' s values. without scanning the entire relation, performance of join algorithm can be improved greatly

    當連接條件中包含用戶自定義的復雜函數時，原有的連接演算法不能直接應用於該連接運算，為此，本文提出了限定變換函數t _ r概念，來限定連接謂詞中某些變元的取值范圍，從而避免對整個關系的掃描，達到提高連接演算法性能的目的。
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