Results 81 to 90 of about 1,080,074 (332)

Modeling the Mechanisms of the Photomechanical Response of a Nematic Liquid Crystal Elastomer

open access: yes, 2011
Recent studies of azo-dye doped liquid crystal elastomers show a strong photomechanical response. We report on models that predict experimental results that suggest photothermal heating is the dominant mechanism in a planar constrained geometry.
Dawson, Nathan J.   +4 more
core   +1 more source

Enhanced Oxidation and Thermal Shock Resistance of N‐type Mg2Si0.89(Sn0.1,Sb0.01) Thermoelectric Material via Cr0.9Si0.1 Coating

open access: yesAdvanced Engineering Materials, EarlyView.
Cr0.9Si0.1 protective coatings are developed to enhance the thermal‐shock and oxidation resistance of Mg2Si0.89(Sn0.1,Sb0.01) thermoelectric (TE) materials. The coating forms a dense and adherent barrier that suppresses oxygen diffusion and mitigates mechanical degradation during cyclic oxidation, demonstrating its potential to improve the long‐term ...
Mikdat Gurtaran   +3 more
wiley   +1 more source

Fabrication and Characterization of Graphene–Mesoporous Carbon–Nickel–Poly(Vinyl Alcohol)-Coated Mandrel-Coiled TCPFLNR Artificial Muscle

open access: yesBiomimetics
This study investigates the performance enhancement of mandrel-coiled twisted and coiled polymer fibers with a nichrome heater (TCPFLNR) by coating with a solution of graphene–mesoporous carbon–nickel–polyvinyl alcohol. The coating process involved a one-
Pawandeep Singh Matharu   +3 more
doaj   +1 more source

Stress relaxation and stress recovery of TiNi shape memory alloy in stress-controlled subloop loading

open access: yesNihon Kikai Gakkai ronbunshu, 2014
The transformation-induced stress relaxation and stress recovery of TiNi shape memory alloy (SMA) in the stress-controlled subloop loading were investigated based on the local variation in temperature and transformation band on the surface of the SMA ...
Kohei TAKEDA   +2 more
doaj   +1 more source

Microstructural Evolution and Mechanical Performance of Plasma‐Assisted Hybrid Friction Stir Welded Dissimilar Aluminum–Copper Joints

open access: yesAdvanced Engineering Materials, EarlyView.
Plasma‐assisted hybrid friction stir welding of dissimilar AlCu joints employs localized plasma preheating to balance heat input and enhance plastic flow. The optimized process reduces axial force by up to 35%, refines the microstructure, and achieves ≈96% joint efficiency.
Deepak Kumar Yaduwanshi   +3 more
wiley   +1 more source

Smart molecular crystal switches

open access: yesSmart Molecules
The multifaceted switches are part of our everyday life from the macroscopic to the molecular world. A molecular switch operating in the solution and in the crystalline state is very different.
Ian Cheng‐Yi Hou   +3 more
doaj   +1 more source

Investigation of Damping Coefficient For Magnetorheological Elastomer

open access: yesMATEC Web of Conferences, 2018
Magnetorheological elastomer (MRE) is a smart material where its stiffness vary with presence of magnetic field.These special properties lead to various application as mechanical devise such as damper.
Hadzir M.N.Hazwan   +3 more
doaj   +1 more source

A Review on Mechanisms for Piezoelectric-Based Energy Harvesters

open access: yesEnergies, 2018
From last few decades, piezoelectric materials have played a vital role as a mechanism of energy harvesting, as they have the tendency to absorb energy from the environment and transform it to electrical energy that can be used to drive electronic ...
Hassan Elahi   +2 more
doaj   +1 more source

Älytaulu EKG-opetuksessa : älytaulun soveltuvuus kliinisen fysiologian opetukseen [PDF]

open access: yes, 2015
Tietokoneavusteinen opettaminen ja sen kehittäminen on ollut osa opetustyötä jo 60-luvulta lähtien. Älytaulu on tietokoneen, liikkeentunnistimen ja dataprojektorin yhdistävä kokonaisuus, jonka avulla voidaan luoda interaktiivista opetusmateriaalia ...
Kärkkäinen, Matias
core  

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