Results 71 to 80 of about 68,128 (277)

Periodic solutions for conformable type non-instantaneous impulsive differential equations

Electronic Journal of Differential Equations, 2021
In this article we study a type of conformable non-instantaneous impulsive equation with periodic effects. We find a Cauchy matrix that can provide solutions of linear and nonlinear problems and prove some of their properties. Also we study the existence of periodic solution of different types of conformable non-instantaneous impulsive differential ...
Yuanlin Ding, Jinrong Wang
openaire   +3 more sources

Fabric‐Based Wearable Robotic Exoskeleton Gloves: Advancements and Challenges

Advanced Materials Technologies, EarlyView.
This review highlights interdisciplinary technological advances in fabric‐based robotic gloves, focusing on progress in design, fabrication, actuation, sensing, control, and power and energy requirements. It also addresses performance testing and validation, including biomechanical, strength, functional, user experience, and durability assessments, to ...
Ayse Feyza Yilmaz, Gökhan Ince, Ozgur Atalay   +2 more
wiley   +1 more source

Motion and Heat Transfer in Turbulent Vortex Pairs

Engineering Transactions, 1978
A two-dimensional problem of turbulent vortex pairs originated by an instantaneous dynamical impulse (cylindrical puffs) or an instantaneous heat release (cylindrical thermals) is considered.
A. Epstein, F. Kaplanski
doaj  

Cloud cavitation on an oscillating hydrofoil [PDF]

, 1994
Cloud cavitation, often formed by the breakdown of a sheet or vortex cavity, is believed to be responsible for much of the noise and erosion damage that occurs under cavitating conditions.
Brennen, C. E., McKinney, E. A., Reisman, G. E.   +2 more
core  

Statistically Stable Estimates of Variance in Radioastronomical Observations as Tools for RFI Mitigation

, 2010
A selection of statistically stable (robust) algorithms for data variance calculating has been made. Their properties have been analyzed via computer simulation.
Baan, Barnbaum, Briggs, David, Fisher, Hampel, Hettmansbperger, Huber, Kendal, Kesteven, Mitchell, P. A. Fridman, Poulsen, Rohlfs, Sheskin, Shurygin, Thompson, Thompson, Tukey, van der Waerden, Wilcox, Zhang   +21 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, Hiroshi Kaminaga, Philippe Fraisse, Gentiane Venture   +3 more
wiley   +1 more source

Minimum-Fuel Trajectories and Near-Optimal Explicit Guidance for Pinpoint Landing from Low Lunar Orbit

Aerospace
This research addresses minimum-fuel pinpoint lunar landing at the South Pole, focusing on trajectory design and near-optimal guidance aimed at driving a spacecraft from a circular low lunar orbit (LLO) to an instantaneous hovering state above the lunar ...
Matteo Caruso, Giulio De Angelis, Edoardo Maria Leonardi, Mauro Pontani   +3 more
doaj   +1 more source

Microglia Mitochondria Support Neuronal Maturation via Metabolic and Transcriptional Reprogramming in Human 3D In Vitro Brain Model

Advanced Science, EarlyView.
xx xx. ABSTRACT Autism Spectrum Disorder (ASD) is a neurodevelopmental condition characterized by disrupted neuronal circuit maturation. Emerging evidence implicates microglial function and mitochondrial regulation as contributors to ASD‐associated biology, yet the mechanisms linking these processes to neuronal development remain poorly defined ...
Sydney P. Sterben, Charitha C. Anamala, Sahan B. S. Kansakar, Vaishnavi Koduri, Volha Liaudanskaya   +4 more
wiley   +1 more source

Generalized exponential stability of differential equations with non-instantaneous impulses [PDF]

AIP Conference Proceedings, 2017
A nonlinear system of differential equations with non-instantaneous impulses is studied. The generalized exponential stability with respect to non-instantaneous impulses is defined. Sufficient conditions by the help with Lyapunov functions are obtained.
Snezhana Hristova, Krasimira Ivanova, Todor Kostadinov   +2 more
openaire   +1 more source

On the Origins of Toughness in Corymbia calophylla (Marri Tree) Nuts

Advanced Science, EarlyView.
We uncover the natural toughening mechanisms of the marri nut, including fiber pullout, crack deflection, and a viscoelastic matrix, which enable exceptional energy absorption and ductility comparable to Teflon, with an elastic modulus similar to acrylic.
Wegood M. Awad, Ahmed S. Dalaq, Marieh B. Al‐Handawi, Rezo Getsadze, Oraib Al‐Ketan, James Weston, Mohammed Daqaq, Panče Naumov   +7 more
wiley   +1 more source