Results 121 to 130 of about 2,128,627 (261)

Nonconstant Positive Steady States for a Predator–Prey System With Signal‐Dependent Diffusion

Mathematische Nachrichten, EarlyView.
ABSTRACT This paper investigates a highly nonlinear predator–prey reaction–diffusion system featuring signal‐dependent prey diffusion, where the motility of the prey is modulated by a chemical signal released by predators. For unbounded functional responses, we establish the global‐in‐time existence and uniform‐in‐time boundedness of classical ...
Qigang Deng, Hao Shen, Ranchao Wu, Hao Wang   +3 more
wiley   +1 more source

Analysis of Mechanical‐Electrical‐Hydraulic Coupled Vibration Response Characteristics of Thermal Control Circulating Pumps Supported by Water‐Lubricated Bearings

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT The operational reliability of thermal control circulation pumps is significantly restricted by the multi‐physics coupled environment. To reveal the vibration transmission mechanisms and dynamic response characteristics under multi‐field coupled excitations, a multi‐DOF coupled dynamic representation of the overall system, incorporating the ...
Jianfeng Luo, Liukai Hou, Yutao Zou, Kaiyuan Hao, Guangwu Zhou   +4 more
wiley   +1 more source

A Phase‐Field Model for Quasi‐Dynamic Rupture Nucleation and Propagation of In‐Plane Faults

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Computational modeling of faulting processes is an essential tool for understanding earthquake mechanics but remains challenging due to the structural and material complexities of fault zones. The phase‐field method has recently enabled unified modeling of fault propagation and off‐fault damage within a fracture‐mechanics‐based framework ...
Fan Fei, Md Shumon Mia, Ahmed E. Elbanna, Jinhyun Choo   +3 more
wiley   +1 more source

Deformation, Creep, and Dynamics in Glassy Ionomers

Journal of Polymer Science, EarlyView.
Ionic architecture tunes the inelastic deformation of glassy ionomers. Simulations show that ionic associations leave the small‐strain elastic baseline nearly unchanged, but strongly reinforce yielding, strain hardening, and creep resistance. Polyampholyte architectures suppress nonaffine mobility and stress‐induced fluidization most effectively by ...
Nazanin Sadeghi, Fardin Khabaz
wiley   +1 more source

The Influence of Non-Isothermal Conditions on Pressure Head Jumps in the Nonlinear Consolidation Problem in the Presence of Geobarriers

Journal of Optimization, Differential Equations and Their Applications
A nonlinear boundary value problem is considered for a system of parabolic equations in an inhomogeneous region, that requires conjugation conditions.
Olha R. Michuta, Petro M. Martyniuk, Nataliia V. Ivanchuk, Mykhailo V. Boichura   +3 more
doaj   +1 more source

Exploring the Drivers of Ecological Sustainability: Insights From the World's Top SDGs Performers

Sustainable Development, EarlyView.
ABSTRACT This article investigates the impact of climate technologies, financial inclusion, renewable energy, and economic growth on the environmental sustainability of the five world's top the Sustainable Development Goals (SDGs) performers. Utilizing a newly compiled panel dataset, the analysis employs the load capacity factor as a proxy for ...
Abdullah Emre Caglar, Ismail Demirdag, Qasim Raza Syed, Mehmet Akif Destek   +3 more
wiley   +1 more source

Necessary conditions for control of objects with distributed constants

Sistemnì Doslìdženâ ta Informacìjnì Tehnologìï, 2019
Problems of optimal control over objects with distributed constants described by nonlinear differential equations with partial derivatives of elliptic, parabolic and hyperbolic types have been considered.
G. Iovane, V. M. Mizernyy
doaj  

A Flexible Thin‐Film Tactile Sensor for Robust Force and Position Sensing Under Extensive Deformations

SmartBot, EarlyView.
Ultrathin tactile interfaces that simultaneously perceive force and contact position are essential for soft robotics and wearable systems. Here, a 180‐μm layer‐structured tactile sensor integrates normal force sensing with continuous two‐dimensional localization while maintaining stable performance under large deformation.
Peng Yan, Zheng Wang, Hailin Huang, He Zhang, Bing Li   +4 more
wiley   +1 more source

A novel approach to construct optical solitons solutions of complex Ginzburg–Landau equation with five distinct forms of nonlinearities

Alexandria Engineering Journal
This paper presents a recently introduced innovative approach for analyzing closed-form solutions of nonlinear partial differential equations. While various methods exist for deriving closed-form solutions to many nonlinear evolution equations ...
F. Gassem, Osman Osman, Faez Alqarni, Khaled Aldwoah, Fathea M. Osman Birkea, Manel Hleili   +5 more
doaj   +1 more source

Testing and modeling reinforced 3D concrete printing

Structural Concrete, EarlyView.
Abstract 3D Concrete Printing (3DCP) provides several advantages, including construction productivity and sustainability, although the presence of cold joints reduces structural performance, particularly in zones subjected to tensile stresses. In addition, it is difficult to reinforce 3DCP structures with conventional steel rebars, generally used to ...
Haruto Tasaki, Noriyuki Kobayashi, Tomoya Asakawa, Alessandro P. Fantilli, Yao Ding, Ryo Egawa, Kazunori Ohno, Tomoya Nishiwaki   +7 more
wiley   +1 more source