نتایج جستجو برای: معادلات rlw

تعداد نتایج: 25342  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده ریاضی 1388

در این پایان نامه یک روش عددی جدید مبتنی بر توابع هسته ی بازیافتی برای حل معادلات تحولی مانند معادله ی موج بلند منظم و معادله ی برگرز ارایه شده است .معادله موج بلند منظم نخستین بار توسط پرگراین به عنوان جای گزینی برای معادله ی kdv به منظور مطالعه ی امواج سولیتونی و مدل بندی موج های بلند روی سطح آب که دامنه ی کوچکی دارند، معرفی شد.معادله ی برگرز نیز نقش مهمی در مطالعه ی موج های غیر خطی دارد و به...

Journal: :Journal of Laser Applications 2022

Additive manufacturing (AM) is an innovative technology that offers the ability to build parts with both geometric and material complexities. However, limitations, including low volume capability production rate, yield its rapid application in high production. This paper presents potential of remote laser welding (RLW) as a post-AM joining approach scale up AM components. The AlSi10Mg alloy was...

2013
Gábor Erdős Zsolt Kemény András Kovács József Váncza

The paper discusses the technical background of the remote laser welding (RLW) technology, its novel opportunities and implications for planning processes. Our ultimate goal is to develop a complete off-line programming toolbox for RLW which can provide an automated method for computing close-to-optimal robot programs. We suggest a workflow for the complete planning process, and propose new mod...

2012
R. C. Mittal

In this paper a numerical method is proposed to approximate the solution of the nonlinear general Rosenau-RLW Equation. The method is based on collocation of quintic B-splines over finite elements so that we have continuity of the dependent variable and its first four derivatives throughout the solution range. We apply quintic B-splines for spatial variable and derivatives which produce a syste...

Journal: :Agronomy 2021

Farm tractors in cultivation consume a big amount of fossil fuels and emit greenhouse gases to the atmosphere. Improving traction performance power transfer indices wheeled field terrain soil with higher (pull ability) at optimal travel reduction (TR) can optimize energy utilization. This study compares performance, fuel consumption, productivity, farm tractor equipped new drive wheel “rigid lu...

Journal: :Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics 1996
Kraenkel Manna Merle Montero Pereira

By considering the long-wavelength limit of the regularized long wave ~RLW! equation, we study its multiple-time higher-order evolution equations. As a first result, the equations of the Korteweg–de Vries hierarchy are shown to play a crucial role in providing a secularity-free perturbation theory in the specific case of a solitary-wave solution. Then, as a consequence, we show that the related...

2013
Polina Razborova Anjan Biswas

This paper obtains solitary waves, shock waves and singular solitons alon with conservation laws of the Rosenau Kortewegde Vries regularized long wave (R-KdV-RLW) equation with power law nonlinearity that models the dynamics of shallow water waves. The ansatz approach and the semi-inverse variational principle are used to obtain these solutions. The constraint conditions for the existence of so...

2010
Jin-Ming Zuo Yao-Ming Zhang Tian-De Zhang Feng Chang

A new conservative finite difference scheme is presented for an initial-boundary value problem of the general Rosenau-RLW equation. Existence of its difference solutions are proved by Brouwer fixed point theorem. It is proved by the discrete energy method that the scheme is uniquely solvable, unconditionally stable, and second-order convergent. Numerical examples show the efficiency of the scheme.

2013

The equal width (EW) equation for long waves propagating in the positive x-direction, has the form 0    xxt x t u uu u   (6.1.1) where  and  are positive constants, which require the boundary conditions 0  u as   x .The EW equation is a model nonlinear partial differential equation for the simulation of one-dimensional wave propagation in nonlinear media with dispersion process. Soli...

Journal: :Acta scientiarum polonorum. Technologia alimentaria 2017
Chinedum Eleazu Ifeoma Ezekwibe Mary Egbe Sanni Saidu Kate Eleazu Chima Egedigwe

BACKGROUND Although African breadfruit (Treculia africana) is said to be useful in the dietary management of diabetes, the effect of cooking on its glycemic index has not been reported. Hence this study has investi- gated the effect of a dietary intake of boiled breadfruit on the serum glucose, glucose tolerance, body weights and relative organ weights of streptozotocin (STZ) induced diabetic r...

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