extremum problem 中文意思是什麼
extremum problem
解釋
極值問題-
Extremum problem in the wheatstone bridge circuit
惠斯通電橋電路中耗散功率的極值問題 -
The first - order perturbation method correct for forcing decoupling method based on perturbation theory is put forward to decrease error ; iii. the complex modal method is introduced into analysis of non - classical damping systems to eliminate error of forcing decoupling method, and improve the complex modal response spectrum, which can apply to design of non - classical damping systems ; iv. for exerting the energy dissipation capability of each device, a two - step optimum method, whose controlling function is extremum expectation of interbedded displacement, is put forward to optimize the number and position of device ; v. the problem of iterative method applied to analyze energy dissipation systems is indicate, and give some primary advice based on pilot study
為改善上述缺點，本文進行了以下的研究工作：在忽略耗能器附加質量的基礎上，推導出適用於耗能減震結構的攝動法，減少振型分解法在迭代計算過程中的工作量，加快計算速度；針對運動方程的強行解耦所產生的誤差，根據攝動法原理，對其進行一階攝動修正；為消除強行解耦振型分解法用於非比例阻尼結構分析時產生的誤差，引入狀態空間對系統進行復模態分析，並改進了基於復模態理論的、適用於非比例阻尼結構設計的雙反應譜方法；對于耗能器的數量和位置優化進行了一些探討和研究。 -
At last, a better idea is presented : in fact, the problem of computing the shape distance between two open curves can be changed to the problem of a functional extremum, therefore, we can get the shape distance through solving an euler equation
本文在最後還證明了這樣一個結論，兩條平面開曲線的形狀距離的計算問題可以轉化為一個泛函的極值問題，於是通過解一個歐拉方程就可以求出兩條開曲線的形狀距離。 -
For standard genetic algorithm has the defects of slowly converging and easily falling into local extremum ， the author designed and realized the adaptive multi - population parallel genetic algorithm ( ampga ) to solve the reliability allocation problem of large and complicated software systems. finally, we experimented on the comity center subsystem, delivery center subsystem and system management subsystem of the project : the jiangsu province postal logistics information system
針對標準遺傳演算法存在著收斂速度慢、易陷入局部極小值等缺點，本文設計並實現了自適應多種群并行遺傳演算法（ ampga ） ，來解決大型、復雜軟體系統的可靠性分配問題。最後，對「江蘇省郵政物流信息系統開發」項目中的「禮儀中心子系統」 、 「遞送中心子系統」及「系統管理子系統」進行了可靠性分配實驗。 -
However, as one of the most complicated mix - integer nonlinear problems with the characteristics of multi - objective, multi - uncertainty, multi - restriction, multi - extremum and discreteness property, the reactive power optimization problem is not yet solved completely
然而由於無功優化問題是一個非常復雜的非線性問題，具有多目標、多不確定性、多約束、多極值和離散性等特點，尚有很多問題有待解決。 -
The optimal condition for a class of vector extremum problem in ordered linear space
序線性空間一類向量極值問題的最優性條件 -
They abstract loads as points, and simplify the issue to find the point which makes running cost of electric power system minimum as optimal substation location. the single location optimal model is solved by the method of iteration which is often used to solve extremum problem. the multiple location optimal model is solved by the method which is called location, distribution by turns
用得最多的模型是經典的單、多源連續選址模型，它將負荷抽象為幾何意義上的點，將求最佳所址簡化為求使網路運行費最小的點的坐標，單源連續選址採用數學優化方法中求極值的迭代求解，多源連續選址通常採用交替選址?分配法求解。 -
Common methods for solving problems about extremum of combination problem
組合極值問題的常用解法
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