Results 81 to 90 of about 306,033 (284)

Nonlinear Kirchhoff-Carrier wave equation in a unit membrane with mixed homogeneous boundary conditions

open access: yesElectronic Journal of Differential Equations, 2005
In this paper we consider the nonlinear wave equation problem $$displaylines{ u_{tt}-Big(|u|_0^2,|u_{r}|_0^2ig)(u_{rr}+frac{1}{r}u_{r}) =f(r,t,u,u_{r}),quad 0less than r less than 1,; 0 less than t less than T, ig|lim_{ro 0^+}sqrt{r}u_{r}(r,t)ig ...
Nguyen Thanh Long
doaj  

Finitely-valued Terminal Zeroing Neural Networks with Application to Robotic Motion Planning [PDF]

open access: yesJisuanji kexue
To solve the problem of time-varying quadratic programming with equality constraints,this paper proposes a finitely-valued terminal zeroing neural network achieving the finite-time convergence of computing errors while being easy to implement.The ...
WANG Liming, ZHONG Guomin, SUN Mingxuan, HE Xiongxiong
doaj   +1 more source

Initial Distance‐Dependent Mean Force Drives Synaptic Vesicle Motion Toward Fusion Sites in Stimulated Hippocampal Neurons

open access: yesAdvanced Science, EarlyView.
Synaptic vesicle (SV) motion and exocytosis dynamics in the presynaptic terminals of live neurons are intimately linked to synaptic transmission during neuronal activity. In this work, it is revealed that, during electrical stimulation, SVs located farther from their fusion sites exhibit greater straightness and experience larger mean forces directed ...
Gyunam Park   +7 more
wiley   +1 more source

On accelerating the convergence of the successive approximations method

open access: yesJournal of Numerical Analysis and Approximation Theory, 2001
In a previous paper of us, we have shown that no q-superlinear convergence to a fixed point \(x^\ast\) of a nonlinear mapping \(G\) may be attained by the successive approximations when \(G^\prime(x^\ast)\) has no eigenvalue equal to 0.
Emil Cătinaş
doaj   +2 more sources

AI‐Optimized Vanadium Oxide Multilayers for More Than 20‐fold Enhancement in Bolometric Performance

open access: yesAdvanced Science, EarlyView.
Machine‐learning‐optimized WxV1‐xOy multilayer thin films with graded doping achieve a high TCR (7.3 % K−1), reduced hysteresis, and low noise under CMOS‐compatible growth conditions. This approach overcomes the long‐standing trade‐off in microbolometers between linear response and performance, offering a universal bolometric parameter greatly enhanced
Jin‐Hyun Choi   +8 more
wiley   +1 more source

Ferromagnetic Interlayer Exchange Coupling in Magnetic Topological Insulator Sandwich Heterostructures

open access: yesAdvanced Science, EarlyView.
A thin topological insulator (Bi2Te3) inserted between two single magnetic septuple layers of MnBi2Te4 is shown to convert the intrinsic antiferromagnetic interlayer coupling into robust ferromagnetism. As the Bi2Te3 spacer thickness increases from 1 to 4 quintuple layers, the weakening coercivity, Curie temperature, and interlayer coupling reveal ...
Enayet Hossain   +10 more
wiley   +1 more source

A Simple SQP Algorithm for Constrained Finite Minimax Problems

open access: yesThe Scientific World Journal, 2014
A simple sequential quadratic programming method is proposed to solve the constrained minimax problem. At each iteration, through introducing an auxiliary variable, the descent direction is given by solving only one quadratic programming.
Lirong Wang, Zhijun Luo
doaj   +1 more source

Membrane‐Mediated Force Transduction Drives Stick‐Slip Motion of Lipid Vesicles

open access: yesAdvanced Science, EarlyView.
A rotating magnetic field actuates a ferromagnetic particle inside a lipid vesicle, generating internal flows that induce stick‐slip propulsion near a surface. Membrane properties—elasticity, excess area, and phase behavior—modulate this motion by shaping stress dissipation and force transduction.
Paula Magrinya   +3 more
wiley   +1 more source

An efficient method for solving the steady Euler equations [PDF]

open access: yes
An efficient numerical procedure for solving a set of nonlinear partial differential equations is given, specifically for the steady Euler equations. Solutions of the equations were obtained by Newton's linearization procedure, commonly used to solve the
Liou, M. S.
core   +1 more source

Atomic‐Scale Mechanisms of Multi‐Resistance States in HfOx‐Based RRAM: Evolution of Atomic Electric Fields and Oxygen Vacancies

open access: yesAdvanced Science, EarlyView.
Atomic‐scale mechanisms governing multilevel resistive switching in HfOx‐based RRAM are reveal through advanced TEM. Thermally driven m‐phase rotation ([101]↔[011]) enables selective oxygen vacancy migration, which reconstructs atomic electric fields and dictates conduction—from Schottky/Poole‐Frenkel emission to Ohmic transport.
Wen Sun   +9 more
wiley   +1 more source

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