International Journal of Applied Mathematics and Computation最新文献_第4页

Restrained 2-Domination Number of Complete Grid Graphs 完全格图的约束2-支配数

International Journal of Applied Mathematics and Computation Pub Date : 2012-12-16 DOI: 10.0000/IJAMC.2012.4.4.463

J. Mohan, I. Kelkar

引用次数: 7

Exact solutions of the new Hamiltonian amplitude equation by the $(frac{G'}{G})$-expansion method 用$(frac{G'}{G})$-展开法求新哈密顿振幅方程的精确解

International Journal of Applied Mathematics and Computation Pub Date : 2012-12-01 DOI: 10.0000/IJAMC.2012.4.4.544

N. Taghizadeh, M. Najand

引用次数: 3

Numerical analysis for some autonomous stochastic delay differential equations 一类自主随机时滞微分方程的数值分析

International Journal of Applied Mathematics and Computation Pub Date : 2012-12-01 DOI: 10.0000/IJAMC.2012.4.4.569

H. Ahmed

引用次数: 1

Combined effects of thermal radiation and heat generation on natural convection in a square cavity filled with Darcy-Forchheimer porous medium 热辐射与生热对方形多孔介质腔内自然对流的联合影响

International Journal of Applied Mathematics and Computation Pub Date : 2012-11-18 DOI: 10.0000/IJAMC.2012.4.4.540

T. R. Mahapatraa, D. Pala, S. Mondal

{"title":"Combined effects of thermal radiation and heat generation on natural convection in a square cavity filled with Darcy-Forchheimer porous medium","authors":"T. R. Mahapatraa, D. Pala, S. Mondal","doi":"10.0000/IJAMC.2012.4.4.540","DOIUrl":"https://doi.org/10.0000/IJAMC.2012.4.4.540","url":null,"abstract":"Combined effects of thermal radiation and internal heat source/sink, formulation for natural-convection flow in a square cavity filled with porous medium using isothermal vertical walls and adiabatic horizontal ones, has been studied numerically by using finite-difference technique in staggered grid distribution. The simulations have been carried out by considering for both Darcian and non-Darcian models. The hydrodynamic field in the porous medium is modelled according to the general model involving Brinkman and Forchheimer terms. The present numerical approach yields consistent performance over the range of parameters for Rayleigh number, Thermal radiation parameter, Heat generating parameter in order to obtain the solutions in terms of streamlines, isotherms, velocity profiles, temperature profiles, local Nusselt numbers and the average Nusselt number. For the purpose of numerical simulation we have considered P r = 1.0 and Ɛ= 0.4. The results are also computed for vertical velocity and temperature profiles for non-porous case by taking Ɛ =1.0 and Da=10 4 . Heat transfer rates at the heated walls are presented in terms of local Nusselt number.","PeriodicalId":173223,"journal":{"name":"International Journal of Applied Mathematics and Computation","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128016291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 14

A B-Rep data structure and object GUI programming to implement 2D boundary elements 实现二维边界元素的B-Rep数据结构和对象GUI编程

International Journal of Applied Mathematics and Computation Pub Date : 2012-11-18 DOI: 10.0000/IJAMC.2012.4.4.554

G. Gomes, M. Noronha

{"title":"A B-Rep data structure and object GUI programming to implement 2D boundary elements","authors":"G. Gomes, M. Noronha","doi":"10.0000/IJAMC.2012.4.4.554","DOIUrl":"https://doi.org/10.0000/IJAMC.2012.4.4.554","url":null,"abstract":"One of the main advantages of the Boundary Elements Methods (BEM) is the inherent feature of a Boundary Representation scheme (B-Rep),since it represents the geometry and physical properties of a model using just its boundary. This characteristic makes the representation andmanipulation of the model geometry an easy task, also allowing the boundary element mesh generation in a straightforward and simple way.Even though a simple pre-processor program may suffice for generating most two-dimensional boundary element models, in some specialcases the modeling procedure represents a cumbersome task, requiring pre-processor programs with enhanced characteristics. The specialcases considered in this work are non-trivial models, such as geometries with infinite or semi-infinite domains, multiple regions, disconnectedregions, cracks and holes. To handle with the modeling task of these special models, the present development proposes a scheme based onthe well-known Half-Edge data structure (HED). It also considers the use of Object-Oriented Programming (OOP) to implement a graphicaluser interface (GUI) with the proposed data structure. The results of step-by-step generation of some special two-dimensional models in theimplemented GUI illustrate the main characteristics of the proposed scheme.Keywords: Geometric Modeling, HED Data Structure, BEM, OOP, GUIs.","PeriodicalId":173223,"journal":{"name":"International Journal of Applied Mathematics and Computation","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133521990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Finite buffer servers' vacation queue with change over times 随时间变化的有限缓冲服务器休假队列

International Journal of Applied Mathematics and Computation Pub Date : 2012-10-31 DOI: 10.0000/IJAMC.2012.4.4.506

P. V. Laxmi, Seleshi Demie, V. Goswami

引用次数: 2

Simultaneous determination of unknown two parameters in parabolic equation 抛物方程中两个未知参数的同时确定

International Journal of Applied Mathematics and Computation Pub Date : 2012-08-11 DOI: 10.0000/IJAMC.2012.4.3.383

Baiyu Wang, A. Liao, W. Liu

引用次数: 38

The neighbor coloring set in graphs 图中的邻居着色集

International Journal of Applied Mathematics and Computation Pub Date : 2012-08-09 DOI: 10.0000/IJAMC.2012.4.3.424

B. Chaluvaraju, C. Kumar, C. Appajigowda

引用次数: 3

Solving a class of ODEs arising in the analysis of a computer security process using generalized hyper-Lambert functions 利用广义超朗伯函数求解计算机安全过程分析中出现的一类ode

International Journal of Applied Mathematics and Computation Pub Date : 2012-08-09 DOI: 10.0000/IJAMC.2012.4.3.474

P. Nastou, Y. Stamatiou, Apostolos Tsiakalos

{"title":"Solving a class of ODEs arising in the analysis of a computer security process using generalized hyper-Lambert functions","authors":"P. Nastou, Y. Stamatiou, Apostolos Tsiakalos","doi":"10.0000/IJAMC.2012.4.3.474","DOIUrl":"https://doi.org/10.0000/IJAMC.2012.4.3.474","url":null,"abstract":"In this paper, we derive the solution to a class of ordinary differential equations (ODEs) that arise from the theoretical analysis, conducted in a previous work, of a key agreement process stemming from computer security. The analysis led to a new class of ordinary differential equations that resemble the well known class of Abel differential equations of the First Kind except that this new class involves the unknown function in powers greater than three. To the best of our knowledge, no general solution strategy exists for integrating the differential equations in this class towards a solution. We show that the solution to these ordinary differential equations can be expressed, interestingly, through the use of a class of Generalized Hyper-Lambert Functions that naturally generalize the well known Lambert $W$ function, which frequently arises in the analysis of engineering applications. A key step to the connection of the solution of the differential equations with Generalized Hyper-Lambert Functions is the analysis of the equations into partial fractions in a way that matches the recursive pattern of the definition of these functions.","PeriodicalId":173223,"journal":{"name":"International Journal of Applied Mathematics and Computation","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124530486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Comment on "Analytical solution to the problem of MHD free convective flow of an electrically conducting fluid between two heated parallel plates in the presence of an induced magnetic field" 对“感应磁场作用下两个受热平行板间导电流体MHD自由对流问题的解析解”的评注

International Journal of Applied Mathematics and Computation Pub Date : 2012-08-09 DOI: 10.0000/IJAMC.2012.4.3.543

B. Sharma

引用次数: 0