Results 71 to 80 of about 6,829 (292)

Reliability and Quality of Complex Systems

Надежность и качество сложных систем
Background. Mathematical modeling of processes of various physical and chemical nature is the most important stage in solving problems of design and operation of various physical and chemical systems.
I.E. Starostin
doaj   +1 more source

Multiobjective Codesign Optimization of a Planar Pneumatic Artificial Muscle‐Based Snake‐Like Robot for Enhanced Agility and Energy Efficiency

Advanced Robotics Research, EarlyView.
A codesign multiobjective optimization framework was developed to enhance the morphology and controller of a snake‐like robot driven by artificial muscles. It improved planar locomotion, agility, and power efficiency. The approach optimized link geometry and controller gains, revealing that shorter muscles near joints and longer linkages maximize ...
Ayla Valles, Mahdi Haghshenas‐Jaryani
wiley   +1 more source

Formation Control of Multi‐Agent System with Local Interaction and Artificial Potential Field

Advanced Robotics Research, EarlyView.
This article proposes a local interaction‐based formation control method for Multi‐Agent system, integrating consensus and leader‐follower strategies with a stress response mechanism—artificial potential field to reduce communication overhead and enable obstacle avoidance. Experimental results on triangular, square, and hexagonal formations confirm its
Luoyin Zhao, Zheping Yan, Yuqing Wang, Raye Chen‐Hua Yeow   +3 more
wiley   +1 more source

Equivalent definitions of positive definiteness [PDF]

Pacific Journal of Mathematics, 1984
Maserick, P. H., Szafraniec, F. H.
openaire   +2 more sources

High‐Performance Capacitive Sensor Based on Polyphosphazene‐Modified InP Electrodes for Hydroquinone Detection

Advanced Sensor Research, EarlyView.
A high‐performance capacitive sensor based on polyphosphazene‐coated n‐InP electrodes (InP/PPP) enables highly sensitive hydroquinone detection. The InP/PPP interface, characterized by XPS and SEM analyses, provides a linear range of 1–100 µm with a detection limit of 0.73 µm.
Siwar Jebril, Gianluca Visagli, Muriel Bouttemy, Mathieu Fregnaux, Arnaud Etchberry, Anne‐Marie Goncalves   +5 more
wiley   +1 more source

Strong Proton‐Phonon Coupling Drives Fast Ion Transport in Perovskites

Advanced Science, EarlyView.
Experimental and computational phonon analysis of ABO3‐type proton conductor BaSnO3 shows that substitution on the B‐site with yttrium forms an imaginary phonon mode which is instrumental for the function as proton conductor. This overcompensates the adverse proton trapping effect of the yttrium.
Alexey Rulev, Nobumoto Nagasawa, Hongxin Wang, Vladimir Pomjakushin, Martin Kunz, Yoshitaka Yoda, Stephen P. Cramer, Qianli Chen, Artur Braun   +8 more
wiley   +1 more source

Strictly Hermitian positive definite functions [PDF]

Journal d'Analyse Mathématique, 2004
Let H be any complex inner product space with inner product . We say that f : C -->C is Hermitian positive definite on H if the matrix $$(f())_{r,s=1}^n \eqno(*)$$ is Hermitian positive definite for all choice of z^1,...,z^n in H, all n. It is strictly Hermitian positive definite if the matrix (*) is also non-singular for any choice of distinct z^1,.
openaire   +3 more sources

Depletion of Sorcs3 Activates Totipotency in Mouse Embryonic Stem Cells by Modulating Key Signaling Pathways

Advanced Science, EarlyView.
In this article, Shuai and colleagues found that depletion of Sorcs3 could activate totipotency in mESCs, promising bidirectional differentiation potential to embryonic and extraembryonic lineages. The underlying mechanism might be activation of Tfap2c and repression of TGF‐β, PI3K‐AKT, and lysosome pathways.
Wenhao Zhang, Xinyu Mao, Yu He, Qingshen Jia, Yiding Zhao, Xiaomeng Dai, Xiaoyan Li, Shengyi Sun, Xiaoyan Sheng, Dan Ding, Yuan Shi, Qian Gao, Ling Shuai   +12 more
wiley   +1 more source

A Quantum Framework for Protein Binding‐Site Structure Prediction on Utility‐Level Quantum Processors

Advanced Science, EarlyView.
This study presents a hybrid quantum‐classical framework for accurate prediction of protein structures on utility‐level quantum processors. We evaluate the practical application of the Variational Quantum Eigen‐solver (VQE) in protein structure prediction and demonstrate its superiority over state‐of‐the‐art deep learning methods in molecular docking ...
Yuqi Zhang, Yuxin Yang, William Martin, Kingsten Lin, Zixu Wang, Cheng‐Chang Lu, Weiwen Jiang, Ruth Nussinov, Joseph Loscalzo, Qiang Guan, Feixiong Cheng   +10 more
wiley   +1 more source

p-Norm SDD tensors and eigenvalue localization

Journal of Inequalities and Applications, 2016
We present a new class of nonsingular tensors (p-norm strictly diagonally dominant tensors), which is a subclass of strong H $\mathcal{H}$ -tensors.
Qilong Liu, Yaotang Li
doaj   +1 more source