Results 91 to 100 of about 302,370 (330)
Advanced Science, EarlyView.A femtosecond UV pump–probe microscope resolves binding‐induced changes in protein excited‐state dynamics and converts these intrinsic contrasts into an equilibrium affinity readout. By probing tryptophan responses directly in solution, the approach enables quantitative determination of dissociation constants without labeling or immobilization ...
Jianghao Shen +5 more
wiley +1 more source
Stability Analysis for Fractional-Order Linear Singular Delay Differential Systems
Discrete Dynamics in Nature and Society, 2014 We investigate the delay-independently asymptotic stability of fractional-order linear singular delay differential systems. Based on the algebraic approach, the sufficient conditions are presented to ensure the asymptotic stability for any delay ...
Hai Zhang +3 more
doaj +1 more source
Ultrafast Multilevel Switching and Synaptic Behavior in a Planar Quantum Topological Memristor
Advanced Science, EarlyView.Dry‐transferred Bi2Te3 layers enable a planar quantum topological memristor framework. In‐plane topological surface states facilitate ultrafast & low‐power operations. Coexisting analog and digital modes support current‐controlled multilevel states. PQTM exhibits 105 s retention, 103 cycles endurance, and reproducibility across 24 devices.
Mamoon Ur Rashid +12 more
wiley +1 more source
Stability analysis of a fractional-order two-species facultative mutualism model with harvesting
Advances in Difference Equations, 2017 We present a fractional-order model of two-species facultative mutualism with harvesting. We investigate the stability of the equilibrium points of the model by using the linearization method for noncoexistence of equilibrium points and the Lyapunov ...
Nattakan Supajaidee, Sompop Moonchai
doaj +1 more source
Global asymptotic stability in a pseudorabies virus model with age structure. [PDF]
Infect Dis Model, 2023 Chen Y, Long Y, Yu J.
europepmc +1 more source
ASYMPTOTIC STABILITY IN GENERAL DYNAMICAL SYSTEMS
Bulletin of the Korean Mathematical Society, 2004 Summary: We characterize asymptotic stability via Lyapunov functions in general dynamical systems on \(c\)-first countable spaces. We give a family of examples which have a first countable but not \(c\)-first countable, also a \(c\)-first countable and locally compact space but not metric space. We obtain several necessary and sufficient conditions for
Kim, Young Il +2 more
openaire +3 more sources
Optimal Grazing Exclusion Duration to Enhance Soil Carbon Sequestration in Degraded Grasslands
Advanced Science, EarlyView.Across China, grazing exclusion reaches the national mean soil organic carbon recovery benchmark sooner in high‐MAP regions (> 500 mm), but recovery is much slower where MAP < 300 mm. Scaling this strategy to 70% of China's degraded grasslands would sequester about 1.52 Pg of soil carbon over 10 years—roughly 17% of annual global fossil‐fuel emissions.
Bin Zhang +9 more
wiley +1 more source
Global asymptotic stability of a delay differential equation model for SARS-CoV-2 virus infection mediated by ACE2 receptor protein. [PDF]
Appl Math Lett, 2023 Lv J, Ma W.
europepmc +1 more source
Asymptotically stabilizing feedback controls
Journal of Differential Equations, 1991 The paper deals with the problem of the existence and construction of an asymptotically stabilizing feedback control for the zero solution of an \(n\)-dimensional, single-input, affine system: \(x=X_ 0(x)+uX_ 1(x)\), \(X_ 0(0)=0\), \(X_ 1(0)\neq 0\) where \(X_ 0(x)=\sum^ n_{i=2}a_ i(x){\partial\over \partial x_ i}\) and \(X_ 1=\partial/\partial x_ 1\).
openaire +2 more sources
Advanced Science, EarlyView.In this work, a bioinspired all‐in‐one underwater quality evaluation metamaterial, combining sound attenuation, diffuse reflection, and mechanical robustness, is proposed based on jumping spider locomotion and human skeletal biomechanics. Meanwhile, a CNN‑driven quality evaluation framework is established for theoretically dimension‐reduced ...
Hongze Li +8 more
wiley +1 more source