boundary function 中文意思是什麼
boundary function
解釋
邊界函數；邊界操作程序-
Starting with the changing process of village hamlet community, on the basis of literature and datum ， the writer investigates thoroughly a village on the boundary of fuqing and putian by the means of individual inquiry and research on the spot, describes the village hamlet community ' s formation and evolution process, emphasizes to expound the everyday life of the village hamlet community and clans with members of the same clan ' s blood line as well as the influence and function of this village ' s particular contacting network in the village hamlet community
本文從了解農村的村落共同體變遷過程出發，在已有文獻和資料的基礎上，運用實地研究和個案訪談的方法，深入調查了一個地處福建省閩中地區福清市和莆田市交界的村落，描述了該村落共同體的形成與演化過程；著重論述了以宗親血緣關系為紐帶的宗族、村落共同體的日常生活表現以及該村獨特的共同體聯系網路在該村村落共同體中的作用與影響。 -
The boundary layer thickness is a function of the convection condition, in the melt.
邊界層厚度是溶體中對流條件的函數。 -
Due to the hard core repulsion, the distribution function of electrons was compressed effectively. thus, we hope the new model has different properties from the standard bariev model with open boundary
由於存在硬芯勢，電子在鏈上的分佈變得稀疏，開邊界的有芯模型具有不同於標準bariev模型的性質。 -
Firstly, in spherical coordinate system, the sovp formulation for the time - harmonic electromagnetic fields of the current dipole in conductive infinite - space is derived, using reciprocity theorem and transforming relations between special functions. then, selecting appropriate coordinate system, using superposition principle, the boundary - value problem of modified magnetic vector potential on the problem of a time - harmonic current dipole in spherical conductor is solved and analytical solution is obtained. finally, by means of the addition formulas of legendre polynomial and spherical harmonics function of degree n and order 1, the analytical solution in spherical coordinate system specially located is transformed into that in spherical coordinate system arbitrarily located
首先利用特殊函數間的轉化關系和互易定理推導得到了無限大導體空間中球坐標下時諧電流元電磁場的二階矢量位形式：然後利用疊加原理，選擇合適坐標系，求解了導體球中時諧電流元的修正磁矢量位邊值問題，得到了問題的解析解；最後依據不同坐標系下電磁場解的轉化原理，藉助勒讓德多項式和n次1階球諧函數的加法公式，將坐標系特殊安放時的電磁場解析解變換到坐標系一般安放時的解析解，給出了球內電場和球外磁場的並矢格林函數。 -
The global inverse function theorem is applied for the existence and uniqueness of periodical solutions to the semilinear boundary value problems. some results are improved
摘要本文運用整體反函數理論證明了一類半線性方程邊值問題周期解的存在唯一性，推廣和改進了已有的一些結果。 -
Applying the results to optimal controller to realize the minimizer of the cost function of mkdv - burgers equation under neumann and dirichlet boundary control. secondly, using inertial manifold and approximate inertial manifold theory, the approximate inertial manifold under fourier bases is given and we construct a set of odes of three modes to obtain the long - time dynamic behavior
其次，利用慣性流形和近似慣性流形理論，給出mkdv - burgers方程在fourier基下的近似慣性流形，並且把這一方程所確定的無窮維動力系統約化為一組三模態下的常微分方程組，從而研究這一方程所確定的動力系統的長期動力學行為。 -
Advanced nodal green s function method on neumann boundary condition
第二類邊界條件先進格林函數節塊法 -
But the grain growth, grain semiconduction and grain boundary insulation were influenced by many factors, such as the type and contents of dopants, sintering temperature and so on. therefore, in this thesis the effect of the restore sintering temperature, the oxygenize temperature, the donor and acceptor dopant on the dielectric and varistor properties of devices were studied. with sem, the microstructure of srtio3 - based double function ceramic was analyzed
而晶粒生長、晶粒半導化和晶界絕緣化受到多種因素的影響，諸如雜質的種類和含量、燒成溫度等，因此本論文研究了還原燒成溫度、中溫氧化溫度、施主和受主摻雜等對srtio _ 3基陶瓷的壓敏和介電性能的影響，並藉助于sem分析對srtio _ 3基雙功能陶瓷的微觀結構進行了分析。 -
Thirdly, phase retrieval by use of gerchberg - saxton ( gs ) algorithm based algorithm and phase retrieval by use of a green ’ s function under neumann boundary conditions is applied to dgwfs. the phase retrieval of combinations of zernike is simulated in computer
第三章分別對基於gesrchberg - saxton法（ gs法）的迭代法和neumann邊界條件的green函數法的波前恢復進行了計算機模擬，並給出了具體程序框圖。 -
By introducing proper stretchy variable and constructing boundary layer function, it concludes n - order approximate solution, and using theory of differential inequality, uniformly validity of asymptotic expansion is proved
通過引進適當的伸長變量，構造邊界層函數，得到了解的n階近似值，並利用微分不等式理論證明了解的漸近展開式的一致有效性。 -
This study gives a summarization about the urban center in conception, connotion, boundary setting, function and structure, urban renewal, transportation organizing and cbd
摘要城市的健康發展是實現我國城市化和現代化的重要保證。 -
In chapter 3, 1 consider the nonlinear parabolic equation : where a bounded domain with smooth boundary in ; v is outward normal vector on is a positive function satisfying some compatibility conditions focus my attention on the case of m > 1, to obtain the blow - up conditions of the positive solution using the method of subsolution and supersolution
運用緊致性原理及moser迭代得到了解的整體存在性和解的熄滅性質。第三章討論了如下形式的非線性拋物方程：其中m ， ， 0 ， r ~ + ，為r ~ n （ n 1 ）中的有界域，具有適當光滑的邊界（ ? ） ； v是（ -
A convergence acceleration technique, boundary element method ( bem ), spectrum of two - dimension solutions ( s2ds ) method are used separately in solving dyadic green function of the three domain. next, waveguide narrow - wall slots array ' s is introduced in this paper
對外部空間，與縫隙腔體區域一樣認為場量與z無關，對所有場量做z方向的fourier變換，得到譜域上的一系列去耦合的二維方程。 -
( 3 ) uniformed contours stacked together and constructed real boundary element method ( bem ) calculation models for e / meg research respectively by minimum distance method and 3d - delaunary based triangulation growth method. finally developed visualization algorithm based on surface rendering for the purpose of integration of structure and function information
在構建剖分模型上，用基於最短對角線（在兩層輪廓中心偏離較大的情況下，對輪廓進行了對中變換）和基於3ddelaunay的方法構建了計算模型；基於表面繪制的思想，實現了頭和腦的可視化。 -
First, in virtual of identification of flaws is a typical of in - verse problems, proceeding from time - harmonic electromagnetic maxwell ' s equa - tion and helmholtz equation, the uniqueness and existence of direct scattering problems including the numerical algorithms of diverse of boundary conditions is given. second, the uniqueness and existence of inverse scattering problems and the theory of ill - posed integral equation are briefly looked back upon. finally, indicator function method for boundary identification is set up under all kinds of boundary conditions for inverse scattering of homogenous and inhomogenous objects, meanwhile, the proof of possibility for near - field measurements and nu - merical simulation are given
由於缺陷的識別是一類典型的反問題，因而首先從時諧電磁maxwell方程和helmholz方程出發，具體地闡述了求解正散射問題的有關方法，包括各種（夾雜）邊界條件下的數值解法，就解的存在性唯一性給予了肯定的回答；隨后對逆散射問題的理論作了簡短的回顧，包括解的唯一性以及非線性不適定積分方程的處理等；然後對均勻介質和非均勻介質的逆散射問題建立了在各種邊界條件下的邊界識別的指示函數方法，鑒于近場數據獲得的重要性，對近場測試時邊界識別的方法給予了相應的證明，並且實現了數值模擬。 -
The numerical algorithm of solving the adjoint equations for different design cases have been developed by using finite volume methodology which is usually used to solve the flow governed equation. it includes the some important aspects, such as flux formulation, wall and far - field boundary treatment methodology, dissipative term formulation, etc. after the solution of the adjoint equations is obtained, the derivatives of the cost function with respect to all the design variables can be evaluated with the same operation. this can yields a significant saving over the other gradient - based techniques when there are many design variables
（ 3 ）進行了應用控制理論和三維歐拉方程的機翼氣動反設計研究，以及有升力約束情形下機翼跨音速減阻問題研究，分別推導了相應的共軛方程及邊界條件數學表達形式，研究與發展了三維共軛方程的有限體積數值求解方法，及相應梯度公式的數值求解方法，通過對計算網格生成、流場計算、共軛方程數值求解、梯度求解和優化演算法等多方面的有效結合，成功發展了三維機翼的氣動反設計和跨音速減阻優化設計程序，成功地進行了多個設計算例研究。 -
In this paper, some characteristics of flow movement and sediment transport are analyzed by using the flume experiment data. the cross section of compound channel can be divided into four regions : the undisturbed region in main channel, the interactive region between channel and plain, the undisturbed region in flood plain and the boundary region. in the undisturbed regions, the distribution of longitudinal velocity along the depth has the feature of lograithmic. whereas, in the interactive region, the longitudinal velocity does not obey the logarithmic distribution law, but it can expressed as a revised logarithmic function by using a wake function. on the basis of the kinematic equation the velocity distribution of transverse velocity is obtained. in the boundary region, the longitudinal velocity obeys the law of parabolic distribution. furthermore, according to the simplified diffusion equation, the transverse distribution of sediment concentration in the interactive region is deduced. the analysis is in good agreement with the measured data
本文根據漫灘水流的運動特點，將漫灘水流的復式斷面分為主槽平衡區、灘槽交互區、灘地平衡區及邊壁區等4個區，並給出了各區寬度的經驗公式.根據灘槽交互區垂線流速分佈的變化特點，提出了附加尾流函數的對數流速分佈公式.在簡化水流運動方程和泥沙擴散方程的基礎上，對灘槽交互區內垂線平均流速及含沙量沿橫向分佈進行了理論分析，提出了反映灘槽水流動量交換強度的橫向渦量粘性系數及橫向擴散系數的表達式，得到了漫灘水流垂線平均流速及含沙量沿橫向分佈的解析解，並與實測資料吻合較好 -
Based on nonsmooth analysis theory, the viability criterion is verified under the condition that the set - valued mapping in the right hand side is a polytope and the boundary function of the region is subdifferentiable and its subdifferential is a convex hull of finitely many points
當右端集值映射為多面體，邊界為次可微函數，且次微分為有限點集凸包時，基於非光滑分析理論，給出了在一點處檢驗生存性條件是否成立的方法。 -
Then, media parameters of the crust, boundary function forces of the area and the finite elementary analyses model were reversibly simulated. linking up with the plateau crustal deformation back analyses model, the tectonic deformation was also simulated
該模型屬于動力學的物理模型，包含反演地殼的介質參數、反演研究區域的邊界作用力與正分析三大部分組成，並以此模型為基礎模擬模擬了高原的構造變形。 -
By means of gps velocity field data, the synthetically crustal media parameters of the plateau were reversibly analyzed, as well as the simplified boundary function forces. thus, the moving tectonic characteristics of the plateau were analyzed macroscopically. finally, the main conclusions are that the majority of tectonic deformation of the plateau is the n - s compression and the minority is the w - e stretching
首先通過gps速度場反分析了高原地殼的綜合介質參數，並反分析了簡化后的高原地殼的邊界作用力，從宏觀上分析了青藏高原的構造運動特徵，分析結論認為：青藏高原的構造變形以南北擠壓為主，東西擴張為輔；造成高原現今構造格局的主要原因是印度洋板塊和歐亞板塊的持續碰撞。
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