數學物理方程 的英文怎麼說
中文拼音 [shǔxuéwùlǐfāngchéng]
數學物理方程
英文
differential equations in mathematical physics- 數 : 數副詞(屢次) frequently; repeatedly
- 學 : Ⅰ動詞1 (學習) study; learn 2 (模仿) imitate; mimic Ⅱ名詞1 (學問) learning; knowledge 2 (學...
- 物 : 名詞1 (東西) thing; matter; object 2 (指自己以外的人或與己相對的環境) other people; the outsi...
- 理 : Ⅰ名詞1 (物質組織的條紋) texture; grain (in wood skin etc ) 2 (道理;事理) reason; logic; tru...
- 方 : Ⅰ名詞1 (方形; 方體) square 2 [數學] (乘方) involution; power 3 (方向) direction 4 (方面) ...
- 程 : 名詞1 (規章; 法式) rule; regulation 2 (進度; 程序) order; procedure 3 (路途; 一段路) journe...
- 數學 : mathematics
- 物理 : 1. (事物的內在規律) innate laws of things2. (物理學) physics
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This text expanded the magnetoelastic stability issue of current - carrying component from coil, pole piece to thin current - carrying plates, and used special function to differentiate the critical state of losing magnetoelastic steady, the number value of getting the relevant parameter is solved. the text derives and provides the magnetoelastic movement equation of thin current - carrying plates, the geometry equations and the physics equations, the expression formula of lorent ’ s force, electro dynamics equation through the theory at first
本文將載流構件磁彈性穩定問題由線圈、桿件拓展到載流薄板,並引入特殊函數判別磁彈性穩定問題的失穩臨界狀態,得到了相關參量的數值關系。首先通過理論推導給出了載流薄板的磁彈性動力學方程,幾何與物理方程,洛侖茲力的表達式,電動力學方程。This thesis was divided into eight chapters, and the main results and innovations obtained here can be summarized as follows : ( 1 ) the physics model of tsrs in frequency conversion crystals has been built up firstly. based on quantum - mechanical viewpoints and the following physical processes and parameters : the two - photo interaction of light with matter, paraxial diffraction of stokes, langevin noise sources, reflection at the faces and the edges of crystals, gain coefficient, beam aperture, pulse width and fluence of 3, the physics model of tsrs in kdp and kdp crystals acting as high - fluence frequency convector and the paraxial operator maxwell - bloch - langevin equations have been built up
全文共分八章,取得的主要成果及創新點如下: ( 1 )首次建立了諧波轉換晶體的tsrs物理模型本文根據量子力學原理,在考慮如下物理過程和參量的基礎上:光與物質的雙光子相互作用; stokes光的傍軸衍射; langevin (郎茲萬)噪聲源;晶體表面反射和端面反射;增益系數、光束口徑、脈寬和三倍頻光能量密度,推導出高通量激光在kdp和kd ~ * p諧波轉換晶體中的tsrs物理模型和空間上的近軸算符maxwell - bloch - langevin方程組。The methods of analysis and evaluation to the stability of slope, now mainl y are qualitative analysis, half quantitative analysis, physics model test and qua ntitative analysis. they all are extensively synthetically use of project geology, soil mechanics and classical mathematics physics, with the help of computers
對于斜坡穩定性的分析評價方法,目前主要有定性分析、半定量分析、物理模型試驗和定量分析等,它們都是對工程地質、巖土力學以及經典數學物理通過計算機進行廣泛的綜合運用,各有側重和優勢。Centered on the investigation on the evolvement of permeability as well as the coupling action between seepage and stress, the following work is carried out : 1. a further examination is given to classical biot seepage theory to discover the basic assumption to form the coupling seepage equation, and discuss the variety of coupling equations between seepage and stress and their adaptabilities. the physical meanings, adaptability, testing method of seepage parameters used in equation of continuum are analyzed based on the experimental investigations on complete relationship between stress, strain and permeability of rock and engineering test on permeability of rock at different depth
本文圍繞巖石破裂過程中滲透性的演化規律及其滲流-應力耦合作用機理這一課題,開展以下方面的研究工作: 1 .對經典biot滲流力學做了進一步的考察,揭示建立耦合滲流方程的主要假設,討論了各種滲流與應力耦合方程及數學模型的適用條件,通過巖石應力應變-滲透率全過程實驗研究和不同深度巖體滲透率工程試驗研究,分析了連續介質模型耦合滲流方程參數的物理意義、適用性、測試方法。Mathematical physics equa - tions printed lectures second edition in chinese
數學物理方程講義.第2版Green function method is very important in the mathematics physics. with the developing of physics, the method is more and more important and it is used more and more widely. but it is difficult for student to learn green function method
Green函數方法是求解數學物理方程中的重要方法,隨著近代物理學的發展,這一方法越來越重要,應用也越來越廣泛,然而, green函數方法又是初學者普遍感到困難的內容。This paper described a cross - flow type of indirect evaporative cooler with condensation in primary airflow. according to the heat and mass transfer performance of indirect evaporative cooler, three - dimensional mathematical model had been established. with the preprocessor gambit, the geometry and mesh generation was completed
論文根據間接蒸發冷卻過程傳熱傳質的特點,對間接蒸發冷卻器進行了合理必要的簡化假設,應用計算流體力學( cfd )方法,建立了板式間接蒸發冷卻器的三維數學物理模型。It plays a very important role in many application, according to the point of mathematics point, its mostly application originate from equations of mathematical physics, difference equations, markov process, and so on, its purpose is to solve the problems of solid, fluid, electromagnetic, microscopic particles, system control, and etc. in practical science research and engineer applications, such as, architecture project, research of aeronautics and astronautics, bioscience, computing physics and oil reconnoiter, many large scale generalized eigenvalue problems need to be solved
它在很多應用中扮演非常重要的角色,從數學角度來看,矩陣特徵值問題的應用大多來自數學物理方程、差分方程、 markov過程等。目的是為了計算固體、流體、電磁、微觀粒子、系統控制等重大問題。在實際的科學研究與工程應用中,比如在建築工程、航空航天研究、生物科學、計算物理以及石油勘探中,都要涉及到大規模矩陣廣義特徵值問題的計算。The three - dimension mathematics model for the simulation of thermoelectric refrigerator is established. with the equalization of mass conservation, momentum and energy, the main sectors of a system model can be connected and solved
本文以熱電冰箱為例建立了三維數學物理模型,用質量、動量、能量平衡方程將製冷裝置各部件聯系起來進行求解。A method of plotting the isovalue line of implicit functions by computer is introduced, the comparison of our method with traditional method of intensity scaling is given. by using of our method, some examples of isopotential and interference in college physics are displayed
通過介紹有關隱函數等值線的計算機繪制方法,與傳統的物理圖形強度定標法作了比較.用此方法舉例模擬了大學物理課程內容中電荷等勢線和波的干涉圖象In order to overcome difficulties in the recovery of historical tritium concentration in the determination of shallow groundwater age by the method of mathematical physical model, this paper, just taking the expolatianal model as the example, deduces a new formula to calculate the groundwater age based on the equation of the tritium mathematical physical and the tritium analysis results in different times
摘要為克服應用氚同位素方法確定現代地下水年齡過程中存在的,需確定地下水系統輸入項的歷史背景濃度問題,本文根據地下水同位素數學物理方程,以全混模型為例,利用不同時期地下水同位素的測試結果,通過數學迭代運算,推導出計算現代地下水年齡的計算公式。A new fluid - structure coupling numerical method is developed in the present dissertation. 2d / 3d navier - stokes equations and low renolds number turbulence model are solved in the fluid zone, while the structure models are solved in the solid zone. the boundary conditions are transferred between the two zones after each time step
該方法採用了準確的數學物理模型,在流體區域求解二維、三維favre平均的非定常navier - stokes方程,在固體區域對于不同的問題求解體振動模型,每一個計算時間步完成後,流體和固體之間傳遞一次邊界條件。Based on modern optimization theory and optimal control theory, this dissertation studies some questions as follows : 1. the optimization model of parameter identification of three - dimensional geologic history numerical simulation, algorithm and its application geologic history numerical simulation is a basic content of basin numerical simulation, and the porosity is the major parameter in the evolution and development process of oil - bearing basin. according to the sedimentation and burial mechanism, the physical and chemical principles of oil geology, the mudstone porosity ' s non - linear parabolic partial differential equation has been established
本文應用現代最優化及最優控制理論,對如下一些問題進行了研究: 1 、三維地史數值模擬的參數辨識優化模型、演算法及應用地史模擬是盆地數值模擬的一個基礎性的研究內容,地層孔隙度是含油氣盆地地史演化發育過程中的重要參數,根據地層沉積埋藏機理和石油地質的物理化學原理,通過引入數學物理方程概念,建立了泥巖三維孔隙度場方程,根據問題的特點,給出了方程的定解條件,對方程的動邊界也給出了處理方法,並且證明了解的存在性與惟一性,在此基礎上建立了以當今實測數據為擬合準則的三維地史數值模擬的參數辨識優化模型,這是一個含有二階偏微分方程約束的泛函極值問題。While in traditional elasticity mechanics, we make our best to eliminate the unknown variables and can get the simplest equation in a brief form. at the same time, the rank of equation is increased, so we cannot solve the equation by direct method and have to resort to semi - converse method
而傳統的彈性力學,其求解方法是盡量消元以使未知量減少,方程形式簡單,寧可讓方程階次提高,故數學物理方法中最基本的分離變量法就難以實施,只能採用半逆法。On the basis of the theory and knowledge of many learning branches such as fractal geometric, the percolation mechanics, the reservoir engineering, mathematic and physic method, numeric analysis method, compute graphic procession method, software engineering analysis method and so on, this thesis based on the developed research work, concludes the following a few facets to the unsteady seepage flow mathematical models in the pressure - sensitive deformable double media fractal reservoir. fractal geometric theory and method are good approximations to describe the complicity and we can more easily analyze all kinds of the pressure - sensitive deformable double media fractal complex reservoir relatively than others
本文綜合運用分形幾何理論,滲流力學理論,油藏工程方法,數學物理方法,數值計算,計算機圖形處理技術,軟體工程的分析方法等方面的理論知識和應用技術,在已有研究成果的基礎上,對分形油藏作了以下幾方面的研究:一-一- -絲竺絲型進些絲燮竺鯉絲竺塑望絲些些竺色? ( l )以m厄仃en一root模型為基礎,引入分形參數d了、 0和壓縮系數。Mastering the output format of covariance of neutron cross section in endf / b - 6 evaluated nuclear data library, clearly understanding the meaning of each physical quantity, grasping the mathematical methods pf covariance for experimental nuclear data and evaluated nuclear data, a set of evaluation processing method was deduced from the meaning of cross sections and errors. and then a program was developed for evaluating and processing the covariance matrix of experimental data, which are output in the endf / b - 6 format
在熟悉endf / b - 6評價中子核數據庫協方差文檔的格式要求,確定各個量的物理意義,並掌握實驗和評價數據的協方差數學處理方法的基礎上,由截面數據及截面誤差的物理意義,推出了一套合適的評價處理方法,最後編寫了按endf / b - 6格式輸出的協方差數據評價處理程序,作為中國評價中子核數據庫( cendl )協方差文檔的數據輸出程序。Regarding research direction, in the area of modern medical science, the graduate training develops to upstream specialty basic sciences such as physiology, pharmacology, microbiology and immunology on the basis of biology, chemistry and molecular biology, while in engineering area the graduate studies pursue the advanced applied sciences such as electricity, magnetic, optical science, mechanics and acoustics on the basis of mathematics and physics
研究方向方面現代醫學教育的多是以生物化學、分子生物學為基礎,向上發展生理、藥理、微免、解剖等基礎醫學專業科目,而工程教育則是以數學、物理為基石,向上發展電學、磁學、光學、力學、聲學等應用科學。The nonlinear magneto - elastic basic equations of thin current - carrying strip - plate are built, based on the kinetic equations, the geometric equations, the physical equations and the electrodynamics equations of thin current - carrying plate, the normal cauchy form nonlinear differential equations, which includes ten basic unknown functions in all, are obtained by means of variable replacement method
摘要在所建立的載流條形薄板的非線性磁彈性基本方程運動方程、幾何方程、物理方程和電動力學方程的基礎上,通過變量代換,整理成含有10個基本未知函數的標準柯西型方程。Klein - gordon - schr ( ? ) dinger ( kgs ) equtions presented itself in duplicate schrodinger field and real klein - gordonfield initially [ 14 ]. it is very important in mathmetics and phisics. many papers studied their periods problem and the problem on bounded field [ 6 ], [ 7 ], [ 9 ]
Klein - gordon - schrdinger ( kgs )最初出現在復schrdinger場與實klein - gordon場相互作用的孤立子問題中,是數學物理中的一類重要方程,對它的周期問題和有界區域問題已有不少工作。In the fifties, the world saw many contributions made by ethnic chinese in mathematics, physics and engineering, whereas chinese names were seldom seen in biological and medical journals in the west
1950年代在數學物理學與工程方面華裔的貢獻已經很多了,很受到國際的注意,而在生物學與醫學的西方雜志中,華人的名字出現還不太多。分享友人