variational,英語單詞,主要用作形容詞,作形容詞時譯為“變化的;因變化而產生的;[生物] 變異的”。
基本介紹
- 外文名:variational
- 詞性:形容詞
- 英式發音:[veərɪ'eɪʃnəl]
- 釋義:變化的;因變化而產生的;[生物] 變異的
variational,英語單詞,主要用作形容詞,作形容詞時譯為“變化的;因變化而產生的;[生物] 變異的”。
《A Variational Approach to Fracture and Other Inelastic Phenomena》是一本圖書。內容簡介 This book exposes a number of mathematical models for fracture of growing difficulty. All models are treated in a unified way, based on incremental energy minimization. They differ from each othe...
《One-Dimensional Variational Problems》是一本1998年Oxford University Press出版的圖書,作者是Giuseppe Buttazzo、Mariano Giaquinta、Stefan Hildebrandt。內容簡介 One-dimensional variational problems have been somewhat neglected in the literature on calculus of variations, as authors usually treat minimal problems...
Energy Principles and Variational Methods in Applied Mechanics 《Energy Principles and Variational Methods in Applied Mechanics》是一本圖書,作者是Reddy, J. N.
Energy and Variational Methods in Applied Mechanics 《Energy and Variational Methods in Applied Mechanics》是一本圖書,作者是Reddy, J. N.
序貫同化僅僅考慮了過去到分析時間點的觀測值,且每個觀測值僅僅使用一次。變分同化(variational)指動態模型在全同化時段,利用所有可用的觀測值從全局調整模刑解。所有的觀測值影響狀態調整的整個過程。它以最優控制理論為基礎,以分析值與觀測值以及背景場之間偏差為目標函式,通過對其最小化尋求整個同化時段的最優解。
序貫同化僅僅考慮了過去到分析時間點的觀測值,且每個觀測值僅僅使用一次。變分同化(variational)指動態模型在全同化時段,利用所有可用的觀測值從全局調整模刑解。所有的觀測值影響狀態調整的整個過程。它以最優控制理論為基礎,以分析值與觀測值以及背景場之間偏差為目標函式,通過對其最小化尋求整個同化時段的最優解。
變分同化(variational)指動態模型在全同化時段,利用所有可用的觀測值從全局調整模刑解。所有的觀測值影響狀態調整的整個過程。模型耦契約化法(初始化/參數化法),是將過程模型與遙感模型耦合,即由過程模型的輸出值作為遙感模型的輸入值,再將遙感正演所得的模擬反射率p(輻射亮度或雷達後向散射係數a 等),直接與遙感...
變分方程 變分方程(variational equation)是1993年公布的數學名詞,出自《數學名詞》第一版。公布時間 1993年,經全國科學技術名詞審定委員會審定發布。出處 《數學名詞》第一版。
變分不等式(variational inequality),經典變分問題的推廣和發展,將經典變分問題的約束條件放鬆為某些單邊約束(即用不等式代替等式)的變分方法。變分不等式已被廣泛地套用於經濟領域的均衡問題。運籌學問題及城市交通網路建模等問題。定義 對於任一向量 ,定義向量函式 是連續的, 是可微的, 是線性仿射的(Linear ...
變分形式(variational formulation)數學物理問題的一種數學表達形式.它常藉助於數學物理的某種變分原理而導出,常用的一種抽象變分形式如下.設Y是希爾伯特空間,a(·,·)是定義在VXV上的連續雙線性泛函,且是強制的,.fEV'(V的對偶空間),則變分問題可表述為 可以證明(1)有惟一解.若a(,·)是對稱的,即a (u...
變分貝葉斯估計可以作為馬爾可夫鏈蒙特卡羅(Markov chain Monte Carlo, MCMC)的低計算量替代方法,也被套用於一些機器學習(machine learning)算法,例如變分自編碼器(variational autoencoder)的學習。理論 給定 維觀測數據 和包含隱變數 的統計模型,由貝葉斯定理(Bayes' theorem),隱變數的後驗有如下表示:...
two values. It is usually written in the form of a pair of expressions denoting the values in question, with a relational sign between them indicating the specific inequality relation.短語搭配 schurz inequation 舒爾茨不等式的推廣 matrix inequation 矩陣不等式 variational inequation 變分不等方程 ...
1.1 Variational Principle and Isoperimetric Problems 1.2 Polyhedral Metrics and Polyhedral Surfaces 1.3 A Brief History on Geometry of Polyhedral Surface 1.4 Recent Works on Polyhedral Surfaces 1.5 Some of Our Results 1.6 The Method of Proofs and Related Works 2 Spherical Geometry and Cauchy ...
Chapter 1 Variational Principle Chapter 2 Finite Element and Finite Element Space Chapter 3 Interpolation Theory of Finite Elements Chapter 4 Conforming Finite Element Method Chapter 5 Nonconforming Finite Element Methods Chapter 6 Convergence of Nonconforming Finite Element Chapter 7 Quasi-Conforming ...
-perron's method in a variational guise -the classical plateau problem 3.compensated compactness applications in elasticity -convergence results for nonlinear elliptic equations -hardy space methods 4.the concentration-compactness principle existence of extremal functions for sobolev embeddings 5.ekeland's ...
Cbapter 6.Variational Geometry A.Tangent Cones B.Normal Cones and Clarke Regularity C.Smooth Manifolds and Convex Sets D.Optimality and Lagrange Multipliers E.Proximal Normals and Polarity F.Tangent—Normal R,elations G.R;ecession Properties H.Irregularity and Convexification I.Other Formulas Comme...
固定邊界變分問題 固定邊界變分問題是一個數學名詞。定義 固定邊界變分} 07題(fixed boundary variationalproblem)一類變分問題。指容許函式在其定義域的邊界和邊界上的值已給定的變分問題。比如最速降線問題就是此類問題。
2.1 Examples of variational problems 2.1.1 Dido's isoperimetric problem 2.1.2 Light reflection and refraction 2.1.3 Catenary 2.1.4 Brachistochrone 2.2 Basic calculus of variations problem 2.2.1 Weak and strong extrema 2.3 First-order necessary conditions for weak extrema 2.3.1 ...
Chapter 1 Variational Principle Chapter 2 Finite Element and Finite Element Space Chapter 3 Interpolation Theory of Finite Elements Chapter 4 Conforming Finite Element Method Chapter 5 Nonconforming Finite Element Methods Chapter 6 Convergence of Nonconforming Finite Element Chapter 7 Quasi-Conforming ...
variational principle [力]變分原理(等於variation principle)system principle 系統性原則 reaction principle n. 反應原理,反作用原理;反酌原理 principle of operation 工作原理;操作原理 superposition principle [物]疊加原理 雙語例句 1It's not just a matter of principle.這不僅僅是個原則問題。《柯林斯英漢...
with Applications to Economics Part Ⅴ Generalizations and Characterizations of Fixed-Points Theorems,Variational Inequalities,Quasi-Variational Inequalities,and Minimax Inequalities Part Ⅵ Optimal Ownership Arrangements Part VII Dynamic Consumption Maximization and Estimation of the Linear Expenditure System ...
約束變分原理 約束變分原理(constrained variational principle)是1993年公布的力學名詞。公布時間 1993年,經全國科學技術名詞審定委員會審定發布。出處 《力學名詞》第一版。