Results 61 to 70 of about 41,784 (281)
A variant of the method of characteristics
Computer Assisted Methods in Engineering and Science, 2023 A variant of the method of characteristics for hyperbolic conservation laws is proposed in this paper. It is based on the time interpolation instead of space interpolation as in the standard method of characteristics.
Mario Šayar +2 more
doaj
Frontiers in Physics, 2020 The variable-coefficient Heisenberg ferromagnetic spin chain (vcHFSC) equation is investigated using the Lie group method. The infinitesimal generators and Lie point symmetries are reported.
Na Liu, Na Liu
doaj +1 more source
Corporate Social Responsibility and Environmental Management, EarlyView.ABSTRACT Although research on sustainability in the healthcare sector is growing, limited attention has been paid to how pharmaceutical companies can be motivated to engage more actively in achieving net‐zero healthcare goals. This study argues that the breadth of directors' experiences—across educational, industrial, and organizational domains—can ...
Ruixin Su, Jianguo Du, Si Li
wiley +1 more source
Weak asymptotic solution for a non-strictly hyperbolic system of conservation laws-II
Electronic Journal of Differential Equations, 2016 In this article we introduce a concept of entropy weak asymptotic solution for a system of conservation laws and construct the same for a prolonged system of conservation laws which is highly non-strictly hyperbolic.
Manas Ranjan Sahoo, Harendra Singh
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Shock Waves in Gas Dynamics [PDF]
Surveys in Mathematics and its Applications, 2007 Shock wave theory was studied in literature by many authors. This article presents a survey with references about various topics related to shock waves: Hyperbolic conservation laws, Well-posedness theory, Compactness theory, Shock and reaction-diffusion
Abdolrahman Razani
doaj
Nonlinear Hyperbolic Conservation Laws. [PDF]
, 1987 Abstract : The focus of this research project has been the study of systems of conservation laws that lose strict hyperbolicity. Two areas of application, namely isentropic gas dynamics for a van der Waals gas, and multiphase flow in a porous medium were considered.
openaire +1 more source
Corporate Social Responsibility and Environmental Management, EarlyView.ABSTRACT Corporate social responsibility (CSR) has increasingly been recognized as a strategic lever for enhancing organizational resilience. Although CSR literature is abundant, prior research has not fully explained how distinct CSR types, such as altruistic, promotional, and value‐creating, influence organizational resilience through sustainability ...
Badar Latif +3 more
wiley +1 more source
A new central-upwind scheme for solving the shallow water equations [PDF]
AUT Journal of Mathematics and ComputingWe have conducted a study where we applied one-dimensional central-upwind methods to estimate solutions of the Saint-Venant (SV) system. Our approach carefully considers the source terms associated with bottom topography.
Rooholah Abedian
doaj +1 more source
On the Boundary Control of Systems of Conservation Laws
, 2001 The paper is concerned with the boundary controllability of entropy weak solutions to hyperbolic systems of conservation laws. We prove a general result on the asymptotic stabilization of a system near a constant state.
Bressan, Alberto +1 more
core +1 more source
Tracking Climate and Environmental Attention: A News‐Based Composite Index
Corporate Social Responsibility and Environmental Management, EarlyView.ABSTRACT This study introduces the Climate and Environmental Attention Index, a composite indicator that tracks media attention to climate and environmental issues. Based on the Semantic Brand Score, the proposed index extracts significant signals from unstructured text, going beyond traditional measures of word frequency and sentiment.
Gianna Figà‐Talamanca +3 more
wiley +1 more source