Results 91 to 100 of about 12,514,312 (273)

Positive Solutions and Mann Iterations of a Fourth Order Nonlinear Neutral Delay Differential Equation

Abstract and Applied Analysis, 2014
This paper deals with a fourth order nonlinear neutral delay differential equation. By using the Banach fixed point theorem, we establish the existence of uncountably many bounded positive solutions for the equation, construct several Mann iterative ...
Zeqing Liu, Jingjing Zhu, Jeong Sheok Ume, Shin Min Kang   +3 more
doaj   +1 more source

STABILITY FOR CERTAIN FOURTH ORDER NONLINEAR DIFFERENTIAL EQUATIONS

Demonstratio Mathematica, 1998
The authors deal with the differential equation \[ x^{(4)}+ \varphi(\ddot x)\dddot x+ f(x,\dot x)\ddot x+ g(\dot x)+ h(x)= P(t, x,\dot x,\ddot x,\dddot x).\tag{\(*\)} \] If \(P= 0\), it is proved that a zero solution to equation \((*)\) is asymptotically stable in the large under certain conditions.
Lin, Shizhong, Liu, Zhengrong, Yu, Yuanhong   +2 more
openaire   +1 more source

GeS as an Emerging OTS Material: Atomic Structure and Modeling of ON/OFF Switching

Advanced Functional Materials, EarlyView.
The structural puzzle of glassy GeS, an advanced memory‐selector material, has finally been disentangled, revealing a patchwork of mixed tetrahedral and trigonal species. Under a high electric field, over‐ and under‐coordinated Ge and S defects, together with three‐membered rings, form an interconnected network associated with localized and extended ...
Andrey Tverjanovich, Jörg C. Neuefeind, Chris J. Benmore, Daniele Fontanari, Anton Sokolov, Maxim Khomenko, Shinji Kohara, Aleksei Bytchkov, Takeshi Usuki, Maria Bokova, Mohammad Kassem, Pascal Masselin, Mariana Milochova, Eugene Bychkov   +13 more
wiley   +1 more source

A Miniaturized Autonomous Thermomagnetic Generator

Advanced Functional Materials, EarlyView.
Micro, autonomous and high power thermomagnetic generator operating between a heat dissipator and a processor. ABSTRACT Thermomagnetic generators (TMG) are promising devices for converting low‐grade waste heat into electricity. Self‐actuation using permanent magnets is the key to autonomy.
Morgan Almanza, Doan Nguyen Ba, Nesrine Belkadi, Erika Fontana, Jean‐Eudes Duvauchelle, Sukhendu Sadhukhan, Loïc Becerra, Thibaut Devillers, Massimiliano Marangolo, Fabien Parrain, Nora M. Dempsey, Martino LoBue   +11 more
wiley   +1 more source

Exceptional Electro‐Optic Coefficient Unlocked via Polarization Swaying in KNbO3 Thin Films

Advanced Functional Materials, EarlyView.
We present the largest reported electro‐optic response in any material to date, guided by a new design principle that exploits ultralow coercive field polarization swaying enabled by low‐symmetry ferroelectric phases in monoclinic KNbO3 thin films for energy‐efficient classical and quantum photonic integrated circuits. ABSTRACT The electro‐optic effect
Sankalpa Hazra, Aiden Ross, Brynn Brower, Tobias Schwaigert, Ian Reed Philippi, Albert Suceava, Himirkanti Sarkar, Muhammed Aminul Haque Chowdhury, Suchismita Sarker, Darrell G. Schlom, Long‐Qing Chen, Venkatraman Gopalan   +11 more
wiley   +1 more source

Efficient Magnetization Switching Driven by Orbital Torque in Light 3d Transition‐Metal Nitrides

Advanced Functional Materials, EarlyView.
Efficient magnetization switching is demonstrated through orbital torque generated from light 3d transition‐metal nitride. Transition‐metal nitrides are established as effective sources of orbital angular momentum for current‐induced switching, highlighting their potential for low‐power next‐generation orbitronic devices beyond conventional heavy‐metal‐
Gaurav K. Shukla, Yoshio Miura, Mayank K. Singh, Shinji Isogami   +3 more
wiley   +1 more source

Architectural Tuning of Bouligand Electrospun Laminates Enables Coupled Mechanical Robustness and Electromechanical Sensing

Advanced Functional Materials, EarlyView.
Bioinspired Bouligand architectures are translated into biodegradable polymer laminates with integrated sensing, revealing how structural design governs multifunctional performance. A 20° interlayer rotation optimizes strength, flexibility, and electromechanical response, while embedded nanotube networks enable real‐time damage detection and wearable ...
Piotr K. Szewczyk, Daniel P. Ura, Michał Kopacz, Katarzyna Marszalik, Urszula Stachewicz   +4 more
wiley   +1 more source

Efficient Numerical Method for Solving a Quadratic Riccati Differential Equation

Abstract and Applied Analysis
This study presents families of the fourth-order Runge–Kutta methods for solving a quadratic Riccati differential equation. From these families, the England version is more efficient than other fourth-order Runge–Kutta methods and practically well-suited
Wendafrash Seyid Yirga, Fasika Wondimu Gelu, Wondwosen Gebeyaw Melesse, Gemechis File Duressa   +3 more
doaj   +1 more source

Hydrogel‐Based Method for High‐Resolution Measurements of Contact Mechanics in Rapid Biological Adhesives: A Case Study in Cuttlefish Tentacle Strikes

Advanced Functional Materials, EarlyView.
Cuttlefish and squid can catch their prey within milliseconds using specialized tentacles and suckers. The physics of how the suckers can attach so quickly has remained a mystery given the technical challenges of studying them in vivo. In this publication, we develop a hydrogel that retains imprints of the suckers in order to estimate the forces they ...
Alexander Koehnsen, Mila F Krikke, Thomas E Kodger, Florian T Muijres, Guillermo J Amador   +4 more
wiley   +1 more source

Engineering Antigen Density on M13 Bacteriophage for Personalized Nanovaccine

Advanced Healthcare Materials, EarlyView.
Increasing antigen density on the phage capsid impacts phage uptake and antigen cross‐presentation by antigen‐presenting cells, leading to enhanced activation of antitumor CD8+ T cells in the draining lymph nodes. These activated CD8+ T cells subsequently recognize the antigen‐expressing tumors and mediate their specific cytotoxic killing, thereby ...
Shengnan Huang, Allison Madow, Jack Rudrum, Huaiyao Peng, Hao Nghi Luu, Peiyan Dong, Jifa Qi, Angela M. Belcher   +7 more
wiley   +1 more source