exact flow 中文意思是什麼
exact flow
解釋
精確計算的流動-
In this dissertation, with the aid of many types of constructive transformations and symbolic computation, some topics in nonlinear waves and integrable system are studied, including exact solutions, painleve integrability, backlund transformation, darboux transformation, symmetry ( similarity reduction ), conditional symmetry, lax integrable hierarchy, liouville integrable n - hamilton structure, constraint flow, involutive system, lax representation, r - matrix, separation of variables and integrable couplings. chapter 2 and 3 are devoted to investigating exact solutions of nonlinear wave equations : firstly, the basic theories of c - d pair and c - d integrable system are presented
本文以構造性的變換及符號計算為工具，來研究非線性波和可積系統中的一些問題：精確解（如孤子解、周期解、有理解、 dromion解及compacton解等） 、 panileve可積性、 backlund變換、 darboux變換、對稱（相似約化） 、條件對稱、 lax可積族、 liouville可積的n - hamilton結構、約束流、對合系統、 lax表示、 r -矩陣、變量分離及可積的耦合系統 -
The exact design methods of switched - current filters are summarized, such as the director synthesis of z - plane, euler mapping, state variable analysis, matrix decomposition, and signal - flow - graph simulation of the lc and switched capacitor prototypes. at the same time, a modified left decomposition matrix method is proposed to overcome the usual problems of large silicon area, high sensitivity and component spreads by minimizing the input circuits. examples of switched - current low - pass, high - pass and band - pass filters are given to verify the feasibility of these methods
總結分析了實現高精度開關電流濾波器設計的各種實用方法，包括z域綜合法、歐拉映射法、模擬無源lc網路和開關電容網路的狀態變量法、矩陣分解法和信號流圖轉置法，並對左分解法加以整理改進，提出一種更為簡潔的設計結構，通過減化輸入電路克服一般電路中存在的佔用矽片面積大、靈敏度高等問題。 -
The streamlines of the flow are obtained from an exact analytical treatment of the stokes equations by making use of finite element methods and complex function theory. based on the calculations, the formation and evolution of vortices in the flow are visualized
運用有限元方法，從斯托克斯方程，連續性方程和流函數方程出發，通過有限元離散、等參元映射、數值積分和牛頓迭代，得到有限元方程的精確數值解，利用后處理軟體對得到的數值結果進行了可視化處理。 -
The investigation in this dissertation shows the capabilities of ausm + scheme, such as the exact resolution of shock, low numerical dissipation, simple and requiring less computational effort. the successful applications on supercritical airfoils and wings show that the present flow solvers based on ausm + scheme are of valuable and promising in practical application
通過本文的研究工作，展示了ausm +格式的激波高解析度、數值耗散小、編程簡潔、計算量較小等特性，同時，將其成功地應用於跨音速超臨界翼型、機翼的定常或非定常氣動特性的數值模擬和顫振研究中，具有一定的工程應用價值和良好的發展前景。 -
Intelligent transpotation system ( its ) assembles advanced information technology, communication technology, control technology, sensor technology, and system integration technology effcitive in large - scale, real time, exact, and efficient transportion system. traffic - flow theory is one of the basic problem in the research of its
智能運輸系統（ intelligenttransportationsystem ，簡稱its ）是將先進的信息技術、通信技術、傳感技術和系統綜合技術有效地集成，並應用於地面運輸系統，從而建立起大范圍內發揮作用的、實時、準確、高效的運輸系統。 -
The value of any security is equal to the net present value ( npv ) of its future cash flow, and it ’ s uncertain to know the exact quantity of its future cash flow, that ’ s to say, there ’ re risks in the security
在綜合已有的研究成果的基礎上，對mbs這種金融工具從風險特徵、風險計量、現金流量的生成、價值生成等進行了探索和總結。任何證券的價格都應等於該證券潛在現金流的折現值之和。
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