非凸性 的英文怎麼說

中文拼音 [fēitūxìng]
非凸性 英文
nonconvexity
  • 非 : Ⅰ名詞1 （錯誤） mistake; wrong; errors 2 （指非洲） short for africa 3 （姓氏） a surname Ⅱ動詞1 ...
  • 凸 : Ⅰ動詞（高出） bulge; protrude Ⅱ形容詞（高於周圍） protruding; raised
  • 性 : Ⅰ名詞1 （性格） nature; character; disposition 2 （性能; 性質） property; quality 3 （性別） sex ...
  1. Stability of travelling waves for non - convex system of one - dimensional viscoelastic materials with boundary effect

    具邊界效應一維粘彈性物質的非凸方程組行波解的穩定性
  2. The problem is high dimensions, non - protuberant, non - linear and mixed. it is hard to find optimal scheme

    該問題是一個高維數、非凸的、非線性的混合優化問題，很難找到理論上的最優解。
  3. Theory of portfolio optimization is an important part of the modern ? nance in - vestment theories, which uses mathematical facilities such as convex analysis, random analysis, nonsmooth analysis, ( nonlinear ) programming etc, combined with the mean - variance method the basic method of modern portfolio theory. by setting up mathe - matical models, discussed the investment rules of ? nance market and o ? ered theoretic guide for investors

    投資組合優化理論是現代金融投資理論的重要組成部分，它運用凸分析、隨機分析、非光滑優化、 （非）線性規劃等數學工具，並與現代投資組合理論的基本方法均值方差方法相結合，通過建立數學模型討論金融市場投資規律並為個人或機構投資者提供理論指導。
  4. In this thesis, the optimality sufficiency conditions and duality theory are discussed in multiobjective nonlinear programming involving ( f, a, p, d ) - convexity and generalized ( f, a, p, d ) - convexity. at that time, an algorithm is discussed for nonlinear multiobjective problem

    本文主要討論了（ f ， ， ， d ） -凸及廣義（ f ， ， ， d ） -凸條件下非線性多目標規劃問題的最優性充分條件和對偶理論，同時，也探討了求解具有線性等式約束的非線性多目標規劃問題的一種新演算法。
  5. Basing on the statistical inaming t ' heory ( slt ), the thesis discusses the svm problems in linearly separable case, lineariy non - separable case and non - linear separable case, and induces a convex quadratic programming ( qp ) problem with an equation constrain and non - equation constrains. then one program on solving the op problem is proposed

    概述了統計學習理論的主要內容，推導了支持向量機方法在文本線性可分、線性不可分和非線性可分情況下實現分類的數學公式，將學習問題轉化為一個在等式約束和不等式約束下的凸二次優化問題，總結了求解的過程。
  6. A main difficult in topology optimization is the singular optimum exists, which performs dimensions mutated and un - connectively in spatial domain ( the singular optimum point was hard to get ). so topology optimization is as regarded as a global optimization problem in concave feasible fields

    拓撲優化的主要困難在於其可行域的奇異性，該奇異性表現為可行域在某些點維數突變及可行域非連通（而奇異點往往難以被搜索到） ，因此拓撲優化也可看作是在非凸可行域的全局最優問題。
  7. The obtained results has been shown that the temperature field of sfrc pavement structure is non - linearly distributed along its thickness. the temperature which is close to the surface changes quickly, whereas slowly which is far. under the affect of temperature field, the temperture stress of sfrc pavement structure is also distributed non - linearly. the deflection and stress responses of sfrc pavement structure are waved declingly under the effect of shock load

    計算結果表明：鋼纖維混凝土路面板結構的溫度場沿其厚度方向呈非線性分佈；在距路面表面較近的地方，溫度變化較快，而在距路面表面較遠的地方，溫度沿厚度方向的變化較為緩慢，整個圖形呈下凸形。鋼纖維混凝土路面板在上述溫度載荷的作用下，其溫度應力沿其厚度方向呈非線性分佈。
  8. Decay of solutions of non - convex scalar conservation laws

    具有非凸標量守恆律的解的衰減性
  9. The main contributions are as following : the dynamic modeling, the solution of the linear and nonlinear differential equations, the dynamic response of the system, and so on. on account of the influence of the model of the high - speed cam - follower system on the dynamic character, the two modelings, the modeling with consideration of the clearance between the cam and the follower and the modeling without consideration of the clearance, were been addressed firstly

    本課題主要對高速凸輪機構的周期時變系統的動力學問題進行了相關研究，具體在高速凸輪機構作為周期時變系統的動力學建模、凸輪系統的周期時變模型的線性和非線性的微分方程的求解方法探索和凸輪系統的動態特性分析等方面做了一些工作。
  10. Under the assumptions of non - convexity and non - degeneration, it is proved that the solutions of the initial - boundary problem to this viscoelastic model tend towards the travelling wave solution of the corresponding cauchy problem time - asymptotically for zero boundary speed and small initial perturbation by a weighted energy method

    對粘彈性模型，用權能量方法證明了在非凸非退化的情形下，當邊界速度為0 ，初始值具有小擾動時，具初邊值問題的解收斂于相應的柯西問題的行波解。
  11. In research of controlling system about the switched reluctance motor system ( srd ), there are two prominent problems, one is that it is difficult to set up accurate mathematical model of srm due to serious nonlinearity caused by double - salient structure, the other is that the previous schemes of srd are always equipped with rotor position sensor, which determines the system ' s high speed performance, reliability and cost. as a result, how to detect the position of non - position sensor rotor has become one major direction in the study o f srd

    其中較為突出的問題是： 1 ）由於sr電機的雙凸極結構，電機模型具有嚴重的非線性，使得建立sr電機的數學模型非常困難； 2 ）轉子位置傳感器的存在影響了電機控制系統的高速性能、可靠性和成本，所以研究無位置傳感器轉子位置檢測技術（或間接位置檢測技術）是開關磁阻電機系統（ srd ）系統研究的重要課題之一。
  12. Non - convexity is in general the main feature of the difficulties for solving these models for wastewater treatment network optimization

    它們是具有非凸性的復雜非線性數學規劃問題，用現有的方法進行求解不能保證得到全局最優解。
  13. 2. reliability of rock slope was done using responding surface method ( rsm ) and monte - carlo method ( mcm ) respectively. reliability index 0 calculated by rsm and mcm are different, which indicates the non - convexity of limit state curved surface in representation of stability of slope

    採用響應面法（ rsm ）和monte - carlo法（ mcm ）對邊坡進行了可靠度分析，兩者計算所得的可靠指標存在著一定的差異，這表明：代表邊坡穩定的極限狀態曲面存在著非凸性。
  14. In this paper we construct a new interior - point homotopy method for solving fixed - point problem in nonconvex set, and prove the convergence under the weak normal cone condition ( see definition 2. 1 ( 2 ) ) and some proper conditions

    摘要本文構造了一個新的求解非凸區域上不動點問題的內點同倫演算法，並在弱法錐（見定義2 . 1 （ 2 ） ）和適當的條件下，證明了演算法的全局收斂性。
  15. We solved multiobject nonconvex programming by means of homotopy - interior method and got the minimum weak effect solution under quasi - normal cone condition ; meanwhile we proved the convergence of this method

    摘要利用同倫內點演算法求解多目標非凸規劃在擬錐條件下的最小弱有效解，並證明了演算法的大范圍收斂性。
  16. Nonlinear functional analysis is a subject. old but fashionable. its abundant theories and advanced methods are providing powerful and fruitful tools in solving ever increasing nonlinear problems in the fields of science and technology. though the theories of integral and differential equations in banach spaces, as new branches of nonlinear functional analysis. have developed for no more than thirty years, they are finding extensive applications in such domains as the critical point theory, the theory of partial differential equa - tions, eigenvalue problems. and so on, are attracting much more attentions from both pure and applied mathematicians

    非線性泛函分析是一門既悠久又現代的學科，它的豐富理論和先進方法為解決當今科技領域層出不窮的非線性問題提供了卓有成效的工具，作為自非線性泛函分析中衍生發展起來的新的分支， banach空間微分方程和積分方程理論雖經歷了不足三十年的發展過程，然而它已被廣泛應用於諸如臨界點理論，偏微分方程理論，特徵值問題等許多領域，其重要性日益凸現出來
  17. With the homotopy method we solved the non - convex nonlinear programming with equality and inequality constrains

    摘要使用同倫演算法研究混合約束的非凸非線性規劃問題。
  18. In nature, opf belongs to a kind of large scale nonlinear programming problem with equality and inequality constraints, having a non - convex, high - dimension and highly sparse characteristic

    Opf本質上屬於一個具有等式和不等式約束的大規模非線性規劃問題，具有非凸、高維數、高度稀疏的特性。
  19. The two kind of harmonic balance methods, analytical hbm and dft numerical hba, are used for the analysis of the parametrically excited flexible cam - follower system with consideration of the clearance between cam and follower. through the two methods, the system equation is reduced to a series of nonlinear algebraic equations

    這種非線性代數方程組需要依靠數值計算的迭代法才能求解，而由於問題的復雜性，普通的newton法很難求解，本文採用一種廣泛應用的擬newton法一一broyden方法來求解，得出了出含間隙凸輪系統模型的穩態響應。
  20. The character of the constraints ( i. e., the feasible domain of the constraints ) is analysed in this paper. an important conclusion is that the feasible domain of frequency constraints is no convex, while the others are convex. therefore, the frequency constraint is the key constraint for the existence of the solution

    對結構優化設計的約束的性質（即約束的可行域）進行了分析，得出了固頻約束的可行域是非凸集，其餘約束的可行域是凸集，固頻約束是決定優化解是否存在的關鍵約束等有益結論； 3
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