Results 61 to 70 of about 4,632,525 (288)

On the performance of a nonlinear vibration isolator consisting of axially loaded curved beams [PDF]

, 2013
A desirable characteristic for nonlinear vibration isolators is a high static stiffness and a low dynamic stiffness. A curved beam is a possible candidate for this role provided that the amplitude of vibration about the static equilibrium position is ...
Abolfathi, Ali, Waters, Tim P., Brennan, Michael J.   +2 more
core   +1 more source

Stabilization of Strongly Reduced Fe(I) Single Atom Species Coordinated in a 2D Self‐Assembled Metal–Organic Network

Advanced Functional Materials, EarlyView.
A graphene‐supported 2D metal–organic network stabilizes highly reactive Fe(I)‐N4 single sites through Co‐induced charge redistribution. Combined experiments and theory reveal Fe(I) formation, oxygen‐driven oxidation, and O2 activation mechanisms, offering a strategy to access low‐valent iron centers relevant to catalytic and biological processes ...
Alessandro Namar, Basant Roondhe, Michela De Col, Stefania Baronio, Matteo Jugovac, Mattia Scardamaglia, Eleanor Frampton, Nikolay Vinogradov, Paolo Giannozzi, Erik Vesselli   +9 more
wiley   +1 more source

Nonlinear free vibration analysis of ultra-thin organic solar plates

Vietnam Journal of Mechanics
Organic photovoltaic devices have gained significant attention as promising solutions to global energy challenges, owing to their unique advantages, including lightweight construction, optical transparency, mechanical flexibility, and low production ...
Nam V. Nguyen, H. Nguyen-Xuan
doaj   +1 more source

Nonlinear Response of Strong Nonlinear System Arisen in Polymer Cushion

Abstract and Applied Analysis, 2013
A dynamic model is proposed for a polymer foam-based nonlinear cushioning system. An accurate analytical solution for the nonlinear free vibration of the system is derived by applying He's variational iteration method, and conditions for resonance are ...
Jun Wang, Li-xin Lu, Huan-xin Jiang, Yong Zhu   +3 more
doaj   +1 more source

Hydrogels Augmented With Artificial Sweeteners can Inhibit Multidrug‐Resistant Acinetobacter baumannii Growth and Biofilm Formation While Demonstrating Safety in Pre‐Clinical Pilot Human Trials

Advanced Healthcare Materials, EarlyView.
Using PVA–borax hydrogels as carriers for off‐the‐shelf artificial sweeteners to fight multidrug‐resistant A. baumannii. These soft, biocompatible hydrogels rapidly reduce bacterial viability within multidrug‐resistant A. baumannii biofilms by more than 99% within one hour and sustain antimicrobial activity over time, while demonstrating safety in both
Jie Han, Mohamed Soliman, Bin Zhang, Dominika Krawiel, Ronan R. McCarthy   +4 more
wiley   +1 more source

Postbuckling and Free Nonlinear Vibration of Microbeams Based on Nonlinear Elastic Foundation

Mathematical Problems in Engineering, 2018
In this paper, post-buckling and free nonlinear vibration of microbeams resting on nonlinear elastic foundation subjected to axial force are investigated. The equations of motion of microbeams are derived by using the modified couple stress theory.
openaire   +2 more sources

Neuromorphic Electronics for Intelligence Everywhere: Emerging Devices, Flexible Platforms, and Scalable System Architectures

Advanced Materials, EarlyView.
The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj, Roshni Satheesh Babu, Yuxin Xia, Eva Bestelink, Radu Sporea, Nikos Hastas, Ioannis Zeimpekis, Dimitra G. Georgiadou, Sayani Majumdar   +8 more
wiley   +1 more source

The application of the differential quadrature method based on a piecewise polynomial to the vibration analysis of geometrically nonlinear beams

Computer Assisted Methods in Engineering and Science, 2022
The paper deals with the application of the differential quadrature method based on a piecewise polynomial to the nonlinear vibration analysis of beams. The initial-boundary-value problem is solved to study the computational stability of the method. The
Artur Krowiak
doaj  

When Poor Exciton Dissociation Limits Photocurrents in Organic Solar Cells: Why Low Offset Non‐Fullerene Acceptor Blends Can't Be Efficient

Advanced Materials, EarlyView.
The energetic offset between the donor and the acceptor components in organic photoactive layers is central to the tradeoff between photovoltage and photocurrent losses. This Perspective covers the most important issues surrounding this topic in non‐fullerene acceptor blends, from the difficulty of accurately determining state energies and driving ...
Dieter Neher, Manasi Pranav
wiley   +1 more source

Free Vibrations of Beams on Bearings with Nonlinear Elastic Responses

Journal of Differential Equations, 1999
The existence of nontrivial time periodic solutions to the problem \[ u_{tt}+ u_{xxxx}= 0, \] \[ u_{xx}(0,\cdot)= u_{xx}\Biggl({\pi\over 4},\cdot\Biggr)= 0,\tag{1} \] \[ u_{xxx}(0,\cdot)= -f(u(0,\cdot)),\quad u_{xxx}\Biggl({\pi\over 4},\cdot\Biggr)= f\Biggl(u\Biggl({\pi\over 4},\cdot\Biggr)\Biggr), \] under some conditions on \(f\), is proved by using ...
openaire   +2 more sources