Results 41 to 50 of about 3,269,008 (248)

An Improved Equivalent Dipole Moment Source Model Based on Regularization Optimization Method for Near Field-Far Field Conversion

open access: yesIEEE Access, 2020
The radiation emission from high-speed digital circuit may result in radio-frequency interference (RFI) problems in modern electronic devices. In this paper, an improved equivalent dipole source based on a new transfer model and a new regularization ...
Wei Liu   +4 more
doaj   +1 more source

Nitride MXenes Beyond Carbides: Bridging the Gap Between Computational Prediction and Experimental Realization

open access: yesAdvanced Functional Materials, EarlyView.
Nitride MXenes remain constrained by a persistent gap between computational prediction and experimental realization. This Review identifies the thermodynamic, kinetic, and chemical barriers limiting their synthesis, critically evaluates emerging fabrication routes, and proposes a multidimensional computational‐experimental framework to accelerate the ...
Naresh Varnakavi, Masoud Soroush
wiley   +1 more source

Fault detection method based on SVD and WPD

open access: yesDianzi Jishu Yingyong, 2018
A fault detection method based on singular value decomposition(SVD) and wavelet packet decomposition(WPD) is designed. The basis principle of this method is the difference of energy distribution of the vibration signals in the frequency domain when the ...
Li Yibo, Shen Hui, Gao Yuan
doaj   +1 more source

An upper bound for validity limits of asymptotic analytical approaches based on normal form theory [PDF]

open access: yes, 2012
Perturbation methods are routinely used in all fields of applied mathematics where analytical solutions for nonlinear dynamical systems are searched.
LAMARQUE, Claude-Henri   +2 more
core   +1 more source

Degradable, Skin‐Conformal Nanocomposite‐Based Bioelectronic Patches for High‐Fidelity Electrophysiology and Gesture‐Controlled Robotics

open access: yesAdvanced Functional Materials, EarlyView.
A degradable, skin‐conformal bioelectronic patch combines a starch‐dominated nanocomposite conductor with a gelatin substrate to enable sensitive strain sensing, high‐fidelity electrocardiography, electromyography, electrooculography, and machine‐learning‐assisted gesture control.
Ming Dong   +10 more
wiley   +1 more source

Research on Degradation State Recognition of Planetary Gear Based on Multiscale Information Dimension of SSD and CNN

open access: yesComplexity, 2019
Planetary gear is the key part of the transmission system for large complex electromechanical equipment, and in general, a series of degradation states are undergone and evolved into a local fatal fault in its full life cycle.
Xihui Chen   +3 more
doaj   +1 more source

The solvability conditions for the inverse eigenvalue problem of normal skew J-Hamiltonian matrices

open access: yesJournal of Inequalities and Applications, 2018
Let J∈Rn×n $J \in{\mathbb{R}}^{n\times n}$ be a normal matrix such that J2=−In $J^{2}=-I_{n}$, where In $I_{n}$ is an n-by-n identity matrix. In (S. Gigola, L. Lebtahi, N. Thome in Appl. Math. Lett. 48:36–40, 2015) it was introduced that a matrix A∈Cn×n $
Jia Zhao, Jieming Zhang
doaj   +1 more source

Mechanistic Origins of Chemo‐Mechanical Instability and Failure in Solid‐State Lithium‐Sulfur Electrodes

open access: yesAdvanced Functional Materials, EarlyView.
Conversion‐induced sulfur expansion generates strong mechanical constraints and localized stresses within solid‐state Li‐S cathodes. Heterogeneous solid‐electrolyte confinement creates tensile strain‐energy hotspots that govern particle cracking. Larger sulfur particles accelerate fracture, while higher porosity relaxes constraint and delays damage ...
Arpan K. Sharma   +3 more
wiley   +1 more source

Nonlinear cross Gramians and gradient systems [PDF]

open access: yes, 2007
We study the notion of cross Gramians for non-linear gradient systems, using the characterization in terms of prolongation and gradient extension associated to the system.
Jacquelien M. A. Scherpen   +5 more
core   +2 more sources

Role of Structural Disorder on Phonon Transport and Thermal Conductivity in Li6PS5Br

open access: yesAdvanced Functional Materials, EarlyView.
Solid electrolytes are fast ion and slow heat conductors. Although both transport properties are governed by lattice dynamics and atomic structure, their interplay remains poorly understood. Here, we study this interrelation in anion‐ordered and disordered Li6PS5Br.
Lukas Ketter   +4 more
wiley   +1 more source

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