mathematical computation 中文意思是什麼

mathematical computation 解釋
數學計算
  • mathematical : adj 數學（上）的，數理的；嚴正的，精確的。 mathematical instruments 制圖儀器。 mathematical logic...
  • computation : n. 1. 計算，估算。2. 計演算法。3. 計算結果，得數。
  1. Mathematical modeling for cooperators research computation

    科研量分配的數學模型探討
  2. Secondly, the artificial neural networks and mixed evolutionary computation are employed into the mathematical simulation of complex geological structure, and with gis and visualization technique, the method of geological digital 3 - d modeling and visualization is presented. so, not only the functions of making geological section and querying spatial information could be achieved, but also the spatial distribution of geological structures and their complex relationship could be described visually. thereby an interactive and convenient way for engineering geological design could be actualized

    （ 2 ）提出了復雜地質構造數學模擬的神經網路方法與混合進化方法，並利用gis技術和可視化技術，深入研究了數字地質三維建模及其可視化方法，實現了地質三維任意剖切、信息空間查詢與管理等功能，從而為直觀描述地質構造的空間展布及其相互間的復雜空間關系，以及快捷、交互地進行工程地質設計提供了新的途徑與手段。
  3. According to the measuremental data of the two ammunications, the anti - designed computation and analysis of aerodynamic characteristic, flight stability, exterior ballistic characteristic for the two ammunications are studied with the advanced methods of the exterior ballistics. using the monte calo algorithm, the statistic mathematical model about ammunication ' s intensity is established and the 1000 miter vertical target intensity and the fall intensity are discussed in detail for the two ammunications. the improval potential and the main technical approachs of these ammunication ' s exterior ballistic performances are presented by compositive optimal algorithm

    根據工廠對俄ak130艦炮彈藥的測繪數據，利用先進的外彈道數值分析方法對兩種彈藥的空氣動力特性、飛行穩定性特性、外彈道特徵量等進行了反設計計算分析；採用montecarlo方法，建立了艦炮彈藥密集度性能統計分析數學模型，對兩種彈藥的立靶密集度和地面密集度進行了詳細的計算分析；利用外彈道性能綜合優化設計方法對兩種彈藥的外彈道性能指標的改進潛力和主要技術途徑進行了分析。
  4. He has an msc in mathematical logic and the theory of computation from bristol university, uk

    他具有英國bristol university頒發的數理邏輯和計算理論的理學碩士學位。
  5. S possessed a prodigious memory, combined with an astonishing quickness and readiness of conception ; the mathematical turn of his mind rendered him apt at all kinds of calculation, while his naturally poetical feelings threw a light and pleasing veil over the dry reality of arithmetical computation, or the rigid severity of geometry

    唐太斯有著驚人的記憶力和極強的理解力，一學就會。他很有數學頭腦，能適應各種各樣的計算方法，而他的想象力又能使枯燥的數學公式和嚴密呆板的線條變得有趣起來。
  6. Coastal and estuarine engineering, layout and planning of harbours and navigation channels ; river training, siltation prediction and its measures ; mathematical model computation and physical model experiments

    海岸河口工程、港口航道總體布局規劃、河道整治、泥沙淤積的預測和對策、數學模型計算和物理模型試驗研究。
  7. Departure from either of these conditions leads to mathematical problems of which there may be no general methods of solution apart from numerical computation.

    缺少這兩個條件的任何一個所導致的數學問題，除數字計算外沒有一般的求解方法。
  8. A transient, three - dimensional, non - isothermal and two - phase mathematical model based on computation fluid dynamics was developed to describe the dynamic process of pemfc

    摘要為描述質子交換膜燃料電池的動態過程，發展了一個基於計算流體動力學的非穩態、非等溫的三維兩相流數學模型。
  9. Abstract : this paper introduces the mathematical model of deep foundation pit supporting, finally, a case example is given to illustrate the procedure computation ， supportion structure and construction method

    文摘:詳細介紹了某廣播電視大廈深基礎支護的數學模型，通過實例說明計算過程、圍護結構和施工方法。
  10. Using the numerical computation method to simulate the pure air flowing in the plasma generator and using zero dimension theory and continuous medium hypothesis to establish the mathematical model of the plasma generator and applying the curvilinear coordinate to disperse the space of the plasma generator, applying simplec method to solve the set of discredited equations

    應用數值計算的方法模擬了等離子發生器內部的純空氣流動，應用零維理論分析模型和連續介質假設建立了描述等離子發生器內部流動和傳熱的數學模型；採用貼體坐標系對等離子發生器的流場空間進行空間離散；採用simplec演算法來求解離散方程，獲得流場的數值解。
  11. ( 5 ) discuss some mathematical models of the pollutant transport problems in some local river flow fields. by integral transform method, the paper establishes the usual finite difference approximation scheme to solve the numerical solutions and gives examples for the computation of the approximating solutions, moreover, discusses one - dimensional characteristic finite difference method for a convection - diffusion equation under usual conditions

    （ 5 ）針對水域中污染物輸移問題的數學模型，通過積分變換法，得到了簡化模型在理想化條件下的近似精確解，同時給出數值算例，並且對非理想化條件下模型的特徵差分方法進行了討論。
  12. Abstract : according to analysis of drying characteristics of granular product, the paper dscribed analytical solutions on a single grain with two falling rate drying stages during corresponding falling rate drying periods of deep - bed drying process the changes of drying and physical parameters ， and their corresponding relation were discussed. a mathematical model was developed and analytical result was presented by computation. the potential application of this analytical solution was alsogiven in this paper

    文摘:通過對顆粒物料的乾燥特性分析，給出單一粒體降速乾燥具有二段性的物料在深床乾燥過程各降速階段的解析式；討論諸乾燥參數及物性參數的變化和相互關系，建立數學模型，採用計算方法，示出解析結果以及這一解析方法的應用。
  13. For the two parts mentioned above, this paper introduces a high precision positioning system for underwater application, which is made up of dgps and acoustical ultra short baseline. in this positioning system, the emphasis has been put on the mathematical model for positioning computation, and based on the model the author has given computer simulation results for positioning computation

    在本論文中，介紹了一套由dgps和水聲超短基線構成的水下精確定位系統，重點建立了用於此系統定位解算的數學模型，進而以該模型為基礎進行了定位解算的計算機模擬模擬，模擬結果進一步驗證了數學模型的正確性和系統的可行性。
  14. The computation might be something mathematical, such as solving a system of equations or finding the roots of a polynomial, but it can also be a symbolic computation, such as searching and replacing text in a document or ( strangely enough ) compiling a program

    運算也許是一些數學的東西，比如求解一個方程組，或者是找到一個多項式的根；但也可能是一些符號化的東西，例如在一個文檔中查找替換一些文字或者編譯一個程序（盡管十分神奇） 。
  15. In this paper, remote sensing picture is processed by erdas, a famous rs & gis platform, and information on the chong qing part of the yangtze river is obtained, which can be compared with the water level data from numerical calculation and evaluate the computation precision of mathematical models

    本文利用著名的rs & gis軟體平臺erdas對遙感圖片進行處理，獲取長江重慶河段河網的信息。可以將提取的河道水面線與數學模型計算的水面線進行比較，對數學模型的計算精度作一個評估。
  16. Author, secondly, starts from the approximate expandness of square root operator, perform mathematical calculations for finite difference operator in frequency - space domain, fourier finite difference operator in mixing domain ( frequency - space and frequency - wavenumber domain ) and general screen operator in mixing domain, compare and discuss their precision of their wavefield, adaptability for lateral velocity variations, computation efficiency and stability. thirdly, author, applies the steady variational reference slowness rytov approximation general screen wavefield extrapolation operator ( vrselrf ) in frequency - wavenumber domain, to the prestack and poststack forward modeling and depth migration

    第二，從平方根運算元的近似展開出發對頻率?空間域的有限差分運算元、混合域（頻率?空間域；頻率?波數域）的fourier有限差分運算元、混合域的廣義屏運算元進行了推導並對其波場描述精度、對橫向變速的適應性、計算效率和穩定性進行了比較與評述。
  17. Abstract : a new method, collaborative allocation ( ca ), is proposed to solve the large - scale optimum allocation problem in aircraft conceptual design. according to the characteristics of optimum allocation in aircraft conceptual design. the principle and mathematical model of ca are established. the optimum allocation problem is decomposed into one main optimization problem and several sub - optimization problems. a group of design requirements for subsystems are provided by the main system respectively, and the subsystems execute their own optimizations or further provide the detailed design requirements to the bottom components of aircraft, such as spars, ribs and skins, etc. the subsystems minimize the discrepancy between their own local variables and the corresponding allocated values, and then return the optimization results to main optimization. the main optimization is performed to reallocate the design requirements for improving the integration performance and progressing toward the compatibilities among subsystems. ca provides the general optimum allocation architecture and is easy to be carried out. furthermore, the concurrent computation can also be realized. two examples of optimum reliability allocation are used to describe the implementation procedure of ca for two - level allocation and three - level allocation respectively, and to validate preliminarily its correctness and effectiveness. it is shown that the developed method can be successfully used in optimum allocation of design requirements. then taking weight requirement allocation as example, the mathematical model and solution procedure for collaborative allocation of design requirements in aircraft conceptual design are briefly depicted

    文摘:探討了一種新的設計指標最優分配方法- -協同分配法，用於處理飛機頂層設計中的大規模設計指標最優分配問題.分析了飛機頂層設計中的設計指標最優分配特徵，據此給出了協同法的原理並建立了數學模型.協同法按設計指標分配關系將最優分配問題分解為主系統優化和子系統優化，主優化對子系統設計指標進行最優分配，子優化以最小化分配設計指標值與期望設計指標值之間的差異為目標，進行子系統最優設計，或對底層元件（如飛機翼梁、翼肋和翼盒等）進行設計指標最優分配，並把最優解信息反饋給主優化.主優化通過子優化最優解信息構成的一致性約束協調分配量，提高系統整體性能，並重新給出分配方案.主系統與子系統反復協調，直到得到設計指標最優分配方案.兩層可靠度指標分配算例初步驗證了本文方法的正確性與可行性，三層可靠度指標分配算例證明了本文方法的有效性.最後，以重量指標分配為例，簡要敘述了針對飛機頂層設計中設計指標協同分配的數學模型和求解思路
  18. A new method, collaborative allocation ( ca ), is proposed to solve the large - scale optimum allocation problem in aircraft conceptual design. according to the characteristics of optimum allocation in aircraft conceptual design. the principle and mathematical model of ca are established. the optimum allocation problem is decomposed into one main optimization problem and several sub - optimization problems. a group of design requirements for subsystems are provided by the main system respectively, and the subsystems execute their own optimizations or further provide the detailed design requirements to the bottom components of aircraft, such as spars, ribs and skins, etc. the subsystems minimize the discrepancy between their own local variables and the corresponding allocated values, and then return the optimization results to main optimization. the main optimization is performed to reallocate the design requirements for improving the integration performance and progressing toward the compatibilities among subsystems. ca provides the general optimum allocation architecture and is easy to be carried out. furthermore, the concurrent computation can also be realized. two examples of optimum reliability allocation are used to describe the implementation procedure of ca for two - level allocation and three - level allocation respectively, and to validate preliminarily its correctness and effectiveness. it is shown that the developed method can be successfully used in optimum allocation of design requirements. then taking weight requirement allocation as example, the mathematical model and solution procedure for collaborative allocation of design requirements in aircraft conceptual design are briefly depicted

    探討了一種新的設計指標最優分配方法- -協同分配法，用於處理飛機頂層設計中的大規模設計指標最優分配問題.分析了飛機頂層設計中的設計指標最優分配特徵，據此給出了協同法的原理並建立了數學模型.協同法按設計指標分配關系將最優分配問題分解為主系統優化和子系統優化，主優化對子系統設計指標進行最優分配，子優化以最小化分配設計指標值與期望設計指標值之間的差異為目標，進行子系統最優設計，或對底層元件（如飛機翼梁、翼肋和翼盒等）進行設計指標最優分配，並把最優解信息反饋給主優化.主優化通過子優化最優解信息構成的一致性約束協調分配量，提高系統整體性能，並重新給出分配方案.主系統與子系統反復協調，直到得到設計指標最優分配方案.兩層可靠度指標分配算例初步驗證了本文方法的正確性與可行性，三層可靠度指標分配算例證明了本文方法的有效性.最後，以重量指標分配為例，簡要敘述了針對飛機頂層設計中設計指標協同分配的數學模型和求解思路
  19. This paper studies the influence of different riverside shape on the flow condition of low - head hydraulic lock ' s outlet area through mathematical computation and examples of project, and finds out the riverside shape which is the most advantageous one

    摘要通過概化模型計算並結合工程實例分析，研究了凹形和凸形河岸對低水頭樞紐船閘口門區水流條件的影響，指出了對低水頭樞紐船閘口門區通航水流條件相對有利的河岸形態。
  20. Researchers at orcca study algorithms and software systems for symbolic mathematical computation. at any given time a number of visitors and postdocs are hosted

    -由李維斌老師帶領，成員有博士班碩士班及在職專班數十人。
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