Results 91 to 100 of about 9,695 (338)

Mimetic-f(Q) gravity: Cosmic reconstruction and energy conditions

Nuclear Physics B
In this study, we present a approach to mimetic gravity incorporating a non-zero nonmetricity tensor with vanishing torsion and curvature, establishing a generalized mimetic-f(Q) gravity framework.
Adam Z. Kaczmarek
doaj   +1 more source

Mixture Augmented Lagrange Multiplier Method for Tensor Recovery and Its Applications

Discrete Dynamics in Nature and Society, 2014
The problem of data recovery in multiway arrays (i.e., tensors) arises in many fields such as computer vision, image processing, and traffic data analysis. In this paper, we propose a scalable and fast algorithm for recovering a low-n-rank tensor with an
Huachun Tan, Bin Cheng, Jianshuai Feng, Li Liu, Wuhong Wang   +4 more
doaj   +1 more source

Front Propagation Through a Perforated Wall

Communications on Pure and Applied Mathematics, EarlyView.
ABSTRACT We consider a bistable reaction– diffusion equation ut=Δu+f(u)$u_t=\Delta u +f(u)$ on RN${\mathbb {R}}^N$ in the presence of an obstacle K$K$, which is a wall of infinite span with many holes. More precisely, K$K$ is a closed subset of RN${\mathbb {R}}^N$ with smooth boundary such that its projection onto the x1$x_1$‐axis is bounded and that ...
Henri Berestycki, François Hamel, Hiroshi Matano   +2 more
wiley   +1 more source

Generation of Optimal FRP Layout for Strengthening Damaged Structures with a Local Displacement Constraint

Buildings
Structural deflection is a critical factor used for evaluating the effectiveness of reinforcement. This study proposes a method for generating FRP layouts with a local displacement constraint to strengthen damaged structures.
Ping Yuan, Yafu Cai, Guodong Wang, Xuhui Zhang, Lizhao Dai   +4 more
doaj   +1 more source

Exploring the Interrelationships Among Supply Chain Emissions, Financial Performance, Market Value, and Board Sustainability: An Exploration of the European Landscape

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT National and supranational institutions are establishing emission trading systems and control schemes in an attempt to manage stakeholders' willingness to engage with regulatory systems and reduce greenhouse gas emissions (GHG). Nonetheless, despite the national and supranational focus on carbon neutrality, little research has been centered ...
Daniele Giordino, Martina Panero, Nourah O. Alshaghdali, Judith Petra Koltai   +3 more
wiley   +1 more source

Convergence of Variational Iteration Method for Second-Order Delay Differential Equations

Journal of Applied Mathematics, 2013
This paper employs the variational iteration method to obtain analytical solutions of second-order delay differential equations. The corresponding convergence results are obtained, and an effective technique for choosing a reasonable Lagrange multiplier
Hongliang Liu, Aiguo Xiao, Lihong Su
doaj   +1 more source

A new Lagrange multiplier update formula

, 1984
A new Lagrange multiplier update formula that extends a Tapia's results and a generalization of the diagonalized quasi-Newton multiplier method are presented.Some numerical results are ...
CORRADI, Gianfranco
core  

Exploring Sustainability Reporting Practices in an Emerging Market: Insights From Corporate Governance and Disclosure Tone

Corporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT The study examines how narrative disclosure tones (NDTs) and corporate governance mechanisms (CGMs) affect sustainability reporting practices (SRP) in an emerging economy. Data from 125 non‐financial firms in Pakistan, spanning 2011–2022, are utilized. SRP is measured using both GRI and the novel IFRS S1 standards‐based indices. Three NDTs are
Arshad Hasan, Usman Sufi, Franklin Nakpodia   +2 more
wiley   +1 more source

A comparative analysis of Lagrange multiplier and penalty approaches for modelling fluid-structure interaction

, 2020
Purpose: When simulating fluid-structure interaction (FSI), it is often essential that the no-slip condition is accurately enforced at the wetted boundary of the structure. This paper aims to evaluate the relative strengths and limitations of the penalty
Brandsen, J.D. (author), van Bussel, G.J.W. (author), Viré, A.C., Turteltaub, S.R., Turteltaub, S.R. (author), van Bussel, G.J.W., Viré, A.C. (author), Brandsen, J.D.   +7 more
core   +1 more source

Study on fracture parameter calibration and failure characteristics of rock with hole and crack

Deep Underground Science and Engineering, EarlyView.
The SIF and plastic zone equations for a single hole and crack have been derived. The model's failure state leads to the identification of four types of cracks. The plastic zone increases with increased brittleness and decreased crack length. Abstract Cracks within the surrounding rock of roadways significantly affect their stability and failure ...
Shaochi Peng, Wensong Wang
wiley   +1 more source