Results 91 to 100 of about 14,864 (294)
Kinetic gauge friction in natural inflation
Journal of Cosmology and Astroparticle PhysicsAbstract We study an extension of the natural inflation model comprising a non-Abelian gauge sector coupled to the axion-inflaton kinetic term. We show how such non-minimal coupling serves as a source of friction for the rolling inflaton granting sixty or more e-folds of accelerated expansion for sub-Planckian values of the axion decay ...
Martino Michelotti +4 more
openaire +4 more sources
Advanced Materials, EarlyView.We reveal the electronic origin of hidden interfacial doping in monolayer MoS2 grown by MOCVD, identifying sulfate related and water like species as intrinsic donors. Through dry interface engineering approach, we demonstrate MOCVD‐grown single‐crystal MoS2 wafers as a transfer‐free platform for the reliable evaluation of intrinsic gate stacks and ...
Shuhong Li +12 more
wiley +1 more source
Lubricants, 2016 During breathing, the pleural surfaces slide against each other continuously without damage. Pleural liquid and lubricating molecules should provide the lubrication of the sliding surfaces, thus protecting the mesothelium from shear-induced abrasion.
Cristina Porta +3 more
doaj +1 more source
Advanced Materials Interfaces, EarlyView.Solid‐state nanopores are used to interrogate dendrimer‐peptide conjugates with systematically varied peptide loading. Single‐particle ionic current signatures reveal how ligand density modulates deformability, transport pathways, and electromechanical coupling during translocation.
Chaoming Gu +7 more
wiley +1 more source
Comparative Evaluation of Frictional forces between different Archwire-bracket Combinations
Orthodontic Journal of Nepal, 2014 Introduction: During sliding mechanics, frictional resistance is an important counterforce to orthodontic tooth movement; whichmust be controlled to allow application of light continuous forces.
Vinit Singh +3 more
doaj +1 more source
Recent Advances of Slip Sensors for Smart Robotics
Advanced Materials Technologies, EarlyView.This review summarizes recent progress in robotic slip sensors across mechanical, electrical, thermal, optical, magnetic, and acoustic mechanisms, offering a comprehensive reference for the selection of slip sensors in robotic applications. In addition, current challenges and emerging trends are identified to advance the development of robust, adaptive,
Xingyu Zhang +8 more
wiley +1 more source
Experimental determination of kinetic friction for low-cost pvc-sand-pvc seismic isolation systems [PDF]
This paper aims to experimentally determine the kinetic friction coefficient at the interface of a PVC-sand-PVC seismic isolation system using a uniaxial small-scale shaking table.
Diambra, Andrea +4 more
core +2 more sources
Impact of a Multiple Pendulum with a Non-Linear Contact Force
Mathematics, 2020 This article presents a method to solve the impact of a kinematic chain in terms of a non-linear contact force. The nonlinear contact force has different expressions for elastic compression, elasto-plastic compression, and elastic restitution.
Dan B. Marghitu, Jing Zhao
doaj +1 more source
Advanced Robotics Research, EarlyView.A codesign multiobjective optimization framework was developed to enhance the morphology and controller of a snake‐like robot driven by artificial muscles. It improved planar locomotion, agility, and power efficiency. The approach optimized link geometry and controller gains, revealing that shorter muscles near joints and longer linkages maximize ...
Ayla Valles, Mahdi Haghshenas‐Jaryani
wiley +1 more source
FrictionFriction energy consumption is the primary cause of energy loss in rolling bearings, and friction characteristics are critical indicators of rolling bearing quality.
Panlong Wu +5 more
doaj +1 more source