整體逼近法 的英文怎麼說
中文拼音 [zhěngtǐbījìnfǎ]
整體逼近法
英文
overall approximation- 整 : Ⅰ形容詞1 (全部在內; 完整) whole; all; complete 2 (整齊) neat; tidy; orderly Ⅱ動詞1 (整理; 整...
- 體 : 體構詞成分。
- 逼 : Ⅰ動詞1 (逼迫; 給人以威脅) compel; force; drive; threaten 2 (強迫索取) extort; exert pressure ...
- 近 : Ⅰ形容詞1 (空間或時間距離短) near; close 2 (接近) approaching; approximately; close to 3 (親...
- 法 : Ⅰ名詞1 (由國家制定或認可的行為規則的總稱) law 2 (方法; 方式) way; method; mode; means 3 (標...
- 整體 : ensemble; whole; entirety
- 逼近 : 1 (靠近 接近) press on towards; gain on [upon]; approach; crowd on; close in on; draw near 2 [...
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By the polygonal approximation method, a global approximation solution is constructed for the initial - boundary value problem of nonconvex scalar conservation laws with two - side boundary effect, and its convergence to the global weak entropy solution of the corresponding problem is proved
摘要使用折線逼近法,對具有兩條邊界影響的非凸單個守恆律初邊值問題構造了整體近似解,並證明其收斂到初邊值問題的整體弱熵解。Finally, in the third section, by constructing some functional which similar to the conservation law of evolution equation and the technical estimates, we prove that in the inviscid limit the solution of generalized derivative ginzburg - landau equation ( ggl equation ) converges to the solution of derivative nonlinear schrodinger equation correspondently in one - dimension ; the existence of global smooth solution for a class of generalized derivative ginzburg - landau equation are proved in two - dimension, in some special case, we prove that the solution of ggl equation converges to the weak solution of derivative nonlinear schrodinger equation ; in general case, by using some integral identities of solution for generalized ginzburg - landau equations with inhomogeneous boundary condition and the estimates for the l ~ ( 2 ) norm on boundary of normal derivative and h ~ ( 1 ) ' norm of solution, we prove the existence of global weak solution of the inhomogeneous boundary value problem for generalized ginzburg - landau equations
第三部分:在一維情形,我們考慮了一類帶導數項的ginzburg ? landau方程,通過構造一些類似於發展方程守恆律的泛函及巧妙的積分估計,證明了當粘性系數趨于零時, ginzburg ? landau方程的解逼近相應的帶導數項的schr ( ? ) dinger方程的解,並給出了最優收斂速度估計;在二維情形,我們證明了一類帶導數項的廣義ginzburg ? landau方程整體光滑解的存在性,以及在某種特殊情形下, gl方程的解趨近於相應的帶導數項的schr ( ? ) dinger方程的弱解;在一般情形下,我們討論了一類ginzburg ? landau方程的非齊次邊值問題,通過幾個積分恆等式,同時估計解的h ~ 1模及法向導數在邊界上的模,證明了整體弱解的存在性。Trust region methods has drawn our attention increasingly as one approximating method guarantees general convergence. its basic step is as follows : first, we set trust - region radius, and then we get a trial step produced by constraint quadratical model
信賴域方法是近年來日益受到關注的一種新的保證演算法整體收斂性的逼近方法,信賴域方法的基本步驟是首先指定一個信賴域半徑,然後用帶約束的二次模型來確定搜索方向與步長大小。The other, called " integral method ", is got by converting the problem to degree reduction of bi - variable polynomials with upper bounds using approximation theory and the relationships between chebyshev bases and bernstein bases
另一個是將問題轉化為二元多項式的保上界降階問題,再由近似逼近理論和chebyshev基與bernstein基的轉換關系,求得區間有理bezier曲面的降階逼近的「整體法」 。According to the structure and some global estimates of the weak entropy solution, we derive the global l1 - error estimate for viscosity methods to this initial - boundary value problem by using the matching traveling wave solutions method
根據弱熵解的結構和一些整體誤差估計,使用匹配行波解方法證明了在l ~ 1 -范數下初邊值問題的粘性逼近方法的整體誤差估計。The characteristic approximation is used to handle the convection part along the direc - tion of fluid namely characteristic direction to ensure the high stability of the method in approximating the sharp fronts and reduce the numerical diffusion ; the mixed finite element spatial approximation is employed to deal with diffusion part and approximate the scalar unknown and the adjoint vector function optimally and simultaneously ; in order to preserve the integral conservation of the method, we introduce the modified characteristic method
該方法對方程的對流部分沿流體流動的方向即特徵方向離散以保證格式在流動的鋒線前沿逼近的高穩定性,消除數值彌散現象;對方程的擴散部分採用最低次混合有限元方法離散、同時以高精度逼近未知函數及未知函數的梯度;為保證方法的整體守恆性,在格式中引入修正項Second, engine ' s partial velocity characteristics model and universal characteristics model are built the throttle opening is considered as an essential factor to build the model for reflecting the actual working performance of engine. the situation of the throttle opening change is studied, and a simulation method is given to use torque curved surface and vehicle dynamics equation on base of differential approach method. engine test software is developed for the engine no - load test, variable throttle opening test and throttle step change test
其次,建立了發動機的部分速度特性模型和萬有特性模型;為了更好的反映發動機的實際工作特性,將油門開度作為一個重要參數參與建模,並對發動機變油門的情況進行了研究;結合轉矩曲面和整車動力學方程,採用微區間逼近法確定了發動機變油門過程模擬方法;開發了發動機試驗測控軟體,利用該軟體進行了發動機空載響應試驗、發動機不同油門開度試驗和油門階躍變化試驗,並對實際試驗數據和數學模型計算數據進行對比;在vc + +平臺上開發了發動機特性模擬模塊,在系統中用軟體實現了變油門控制發動機特性的功能。Besides asm, a general approach towards object location using active appearance model ( aam ) is presented. aam measures the current texture residuals and uses the model to predict changes to the current parameters, leading to a better fit. at last, the independent component analysis is used in the building procedure of active shape model
在asm模型的基礎上,本文還簡要探討了主動表觀模型( aam )的定位方法, aam可以根據當前合成圖象同目標圖象之間的表面灰度差異逐步調整統計模型參數,使得合成模型更加逼近目標物體。Both line search and trust region are well - accepted methods in the nonlinear programming to assure global convergence
線搜索技術和信賴域策略是解非線性優化問題的兩種基本逼近方法,這兩種技術都能用來保證演算法的整體收斂性。When researching the pick - up of image - feature, this paper pick up the parameters of whole structure configuration and put forward a method of rapid polygon approach ; after analyzed the parameter of the whole structure, the thresholds can be found ; 3. when researched sort technology of the network of nerve, a network of nerve named art which can recognize the known disfigurement and unknown disfigurement is designed ; 4
深入研究缺陷圖像的特徵參數提取技術。本文利用數學結構形態學的方法對缺陷圖像的整體特徵參數進行了提取,並提出了一種快速多邊形逼近演算法?最小周長法;通過對缺陷整體特徵參數的分析,找到了不同缺陷的特徵參數閾值。分享友人