Results 101 to 110 of about 33,056 (296)
Oscillation Criteria for Second Order Nonlinear Perturbed Differential Equations
, 1997 We present new oscillation criteria for the second order nonlinear perturbed differential equations.
Rogovchenko, Yuri V
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Oscillation of certain difference equations [PDF]
, 1994 summary:Some new criteria for the oscillation of difference equations of the form \[ \Delta ^2 x_n - p_n \Delta x_{n-h} + q_n |x_{g_n}|^c \mathop {\mathrm sgn}x_{g_n} = 0 \] and \[ \Delta ^i x_n + p_n \Delta ^{i-1} x_{n-h} + q_n |x_{g_n}|^c \mathop ...
Lalli, B.S. +3 more
core +1 more source
Compliant Pneumatic Feet with Real‐Time Stiffness Adaptation for Humanoid Locomotion
Advanced Robotics Research, EarlyView.A compliant pneumatic foot with real‐time variable stiffness enables humanoid robots to adapt to changing terrains. Using onboard vision and pressure control, the foot modulates stiffness within each gait cycle, reducing impact forces and improving balance. The design, cast in soft silicone with embedded air chambers and Kevlar wrapping, offers durable,
Irene Frizza +3 more
wiley +1 more source
Oscillation criteria for elliptic equations [PDF]
Pacific Journal of Mathematics, 1968 Headley, V. B., Swanson, C. A.
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Numerical Modeling of Photothermal Self‐Excited Composite Oscillators
Advanced Robotics Research, EarlyView.We present a numerical framework for simulating photothermal self‐excited oscillations. The driving mechanism is elucidated by highlighting the roles of inertia and overshoot, as well as the phase lag between the thermal moment and the oscillation angle, which together construct the feedback loop between the system state and the environmental stimulus.
Zixiao Liu +6 more
wiley +1 more source
An Oscillation criteria for second order functional equations
Acta Mathematica Scientia, 2002 The authors consider the second-order linear functional equation \[ x\bigl(g(t)\bigr) =P(t)x(t)+Q(t)x \bigl(g^2(t)\bigr),\;t\geq t_0, \] where \(P,Q,g:[t_0,\infty) \to[0,\infty)\) are given function, \(t_0\geq 0\), \(g\neq id|_{[t_0,\infty)}\), \(\lim_{t\to\infty} g(t)=\infty\).
Shen, J. H., Stavroulakis, I. P.
openaire +3 more sources
From Lab to Landscape: Environmental Biohybrid Robotics for Ecological Futures
Advanced Robotics Research, EarlyView.This Perspective explores environmental biohybrid robotics, integrating living tissues, microorganisms, and insects for operation in real‐world ecosystems. It traces the leap from laboratory experiments to forests, wetlands, and urban environments and discusses key challenges, development pathways, and opportunities for ecological monitoring and ...
Miriam Filippi
wiley +1 more source
Advanced Science, EarlyView.Nuclear metabolism oscillates during cell cycle progression. Quantitative chromatome proteomics and imaging reveal phase‐specific dynamics of PIP5K1A and nuclear PIP2, linking phosphatidylinositol metabolism to histone methylation. This work identifies nuclear lipid metabolism as a previously unrecognized regulatory axis coordinating chromatin ...
Antoni Gañez‐Zapater +13 more
wiley +1 more source
Oscillation criteria for second-order nonlinear perturbed differential equations
Electronic Journal of Differential Equations, 2014 In this article, we study the oscillation of solutions to the nonlinear second-order differential equation $$ \Big(r(t)\psi(x(t))|x'(t)|^{\alpha-1}x'(t)\Big)' +P(t,x'(t))\psi(x(t))+Q(t,x(t))=0. $$ We obtain sufficient conditions for the oscillation
Pakize Temtek
doaj
Oscillation criteria for second order superlinear dynamic equations with oscillating coefficients
Applied Mathematics Letters, 2017 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hong-Wu Wu, Baoguo Jia, Lynn Erbe
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