Results 101 to 110 of about 13,921 (293)

Weighted integral inequality and applications in general energy decay estimate for a variable density wave equation with memory

Boundary Value Problems, 2018
This paper develops a weighted integral inequality to derive decay estimates for the quasilinear viscoelastic wave equation with variable density |ut|ρutt−Δu−Δutt+∫0tg(t−s)Δu(s)ds=0in Ω×(0,∞) $$\begin{aligned} \vert u_{t} \vert ^{\rho }u_{tt}-\Delta u ...
Fushan Li, Fengying Hu
doaj   +1 more source

Dissecting the Ecological Structure of Health and Disease in the Global Gut Microbiome

Advanced Science, EarlyView.
We introduce Wiredancer, a framework that identifies three continuous ecological factors of the gut microbiota. These factors exhibit distinct patterns across health and disease, jointly capturing disrupted ecological stability and offering a new perspective for precision diagnostics and therapeutic strategies.
Baoyuan Zhu, Shuhao Chen, Yunheng Diao, Wei Wang, Yuanyuan Huang, Liqin Liang, Xiaodan Lu, Rui Han, Minxin Guo, Zhaobo Li, Shuhong Wang, Hehua Li, Chenyu Liu, Jing Zhou, Dongsheng Xiong, Xiaobo Li, Yuping Ning, Xuetao Shi, Fengchun Wu, Kai Wu   +19 more
wiley   +1 more source

Physical Origin of Temperature Induced Activation Energy Switching in Electrically Conductive Cement

Advanced Science, EarlyView.
The temperature‐induced Arrhenius activation energy switching phenomenon of electrical conduction in electrically conductive cement originates from structural degradation within the biphasic ionic‐electronic conduction architecture and shows percolation‐governed characteristics: pore network opening dominates the low‐percolation regime with downward ...
Jiacheng Zhang, Xinyuan Ke, Andrew Heath, Richard J. Ball, Jiawei Xie, Jinchen Fan, Guisheng Li, Kevin Paine   +7 more
wiley   +1 more source

Optimal Polynomial Decay to Coupled Wave Equations and Its Numerical Properties

Journal of Applied Mathematics, 2014
In this work we consider a coupled system of two weakly dissipative wave equations. We show that the solution of this system decays polynomially and the decay rate is optimal.
R. F. C. Lobato, S. M. S. Cordeiro, M. L. Santos, D. S. Almeida Júnior   +3 more
doaj   +1 more source

Polynomial Energy Decay Rate for the Wave Equation with Kinetic Boundary Condition

This paper concerns the polynomial decay of the dissipative wave equation subject to Kinetic boundary condition and non-neglected density in the square.
Seba, Djamila, Laoubi, Karima
core   +1 more source

Polynomial stability of operator semigroups

, 2006
We investigate polynomial decay of classical solutions of linear evolution equations. For bounded strongly continuous semigroups on a Banach space this property is closely related to polynomial growth estimates of the resolvent of the generator.
PRUESS J, BATKAI A, SCHNAUBELT R., ENGEL, KLAUS JOCHEN OTTO   +3 more
core   +1 more source

Phase Diagrams and Piezoelectric Properties of Wurtzite Al1−x−yScxGdyN Heterostructural Alloys

Advanced Science, EarlyView.
This study demonstrates ferroelectricity and piezoelectric properties improvement of quaternary wurtzite Al1−x−yScxGdyN${\rm Al}_{1-x-y}{\rm Sc}_x{\rm Gd}_y{\rm N}$ films, guided by density functional theory calculations. Wurtzite Al1−x−yScxGdyN${\rm Al}_{1-x-y}{\rm Sc}_x{\rm Gd}_y{\rm N}$ films have a high optical bandgap, enhanced piezoelectric ...
Julia L. Martin, Cheng‐Wei Lee, Nate S.P. Bernstein, Thi Nguyen, Ande Bryan, Eli Cooper, John S. Mangum, Sage R. Bauers, Andriy Zakutayev, Keisuke Yazawa, Prashun Gorai, Rebecca W. Smaha   +11 more
wiley   +1 more source

Elephant Random Walk with Polynomially Decaying Steps

Journal of Statistical Physics
In this paper, we introduce a variation of the elephant random walk whose steps are polynomially decaying. At each time $k$, the walker's step size is $k^{-γ}$ with $γ>0$. We investigate effects of the step size exponent $γ$ and the memory parameter $α\in [-1,1]$ on the long-time behavior of the walker. For fixed $α$, it admits phase transition from
openaire   +2 more sources

Atomic Defects in Layered Transition Metal Dichalcogenides for Sustainable Energy Storage and the Intelligent Trends in Data Analytics

Advanced Science, EarlyView.
This review comprehensively summarizes the atomic defects in TMDs for their applications in sustainable energy storage devices, along with the latest progress in ML methodologies for high‐throughput TEM data analysis, offering insights on how ML‐empowered microscopy facilitates bridging structure–property correlation and inspires knowledge for precise ...
Zheng Luo, Ying Yang, Zizhen Fu, Fengqi Liu, Susu Fang, Kele Xu, Shanshan Wang   +6 more
wiley   +1 more source

Smoothing exponential-polynomial splines for multiexponential decay data

, 2019
In many applications, the definition of fitting models that mimic the behaviour of experimental data is a challenging issue. In this paper a data-driven approach to represent (multi)exponential decay data is presented. We propose a fitting model based on
Campagna Rosanna, Conti Costanza, Cuomo Salvatore, Cuomo S., Campagna R., Conti C.   +5 more
core   +1 more source