Results 141 to 150 of about 11,293,464 (295)

A Miniaturized Autonomous Thermomagnetic Generator

open access: yesAdvanced Functional Materials, EarlyView.
Micro, autonomous and high power thermomagnetic generator operating between a heat dissipator and a processor. ABSTRACT Thermomagnetic generators (TMG) are promising devices for converting low‐grade waste heat into electricity. Self‐actuation using permanent magnets is the key to autonomy.
Morgan Almanza   +11 more
wiley   +1 more source

Bistable Isochoric Chiral Metamaterials with Reprogrammable Multiaxial Responses

open access: yesAdvanced Functional Materials, EarlyView.
An isochoric bistable rotational unit cell enables in situ modification of internal contact conditions post‐fabrication, without altering the global envelope dimensions of the surrounding architecture. By selectively switching between open and closed states, the tessellated chiral metamaterial can reprogram its volumetric response, including bulk ...
Shujia Chen   +3 more
wiley   +1 more source

A hydration-dependent minimum in finger pad friction on rough surfaces

open access: yesScientific Reports
Finger pad friction is central to object manipulation and tactile perception, and surface roughness is a key parameter for its control. In a systematic investigation of finger pad friction on aluminum surfaces with varying roughness, measurements from 61
Sairam Saikumar   +2 more
doaj   +1 more source

Tribocorrosion behavior of Al-based amorphous coatings prepared by different spraying methods

open access: yesJournal of Materials Research and Technology
The correlation between the wear behavior of three types of Al-based amorphous coatings prepared by low-temperature high-velocity oxygen fuel (LT-HVOF), high-velocity air fuel (HVAF) and cold spraying (CS), and the corrosion behavior of the coatings has ...
Jiachi Yuan   +6 more
doaj   +1 more source

Deformation‐Tolerant Functional Elastomer Overlayers for Haze‐Assisted Light Extraction and Color Conversion in Stretchable Mechanoluminescent Films

open access: yesAdvanced Functional Materials, EarlyView.
Functional elastomer overlayers are integrated onto stretchable ZnS:Cu‐PDMS mechanoluminescent films to regulate light after emission without modifying the emissive composite. NLC‐PU provides haze‐assisted light extraction to enhance green mechanoluminescence, while DCM‐NLC‐PU combines green‐to‐yellow‐orange color conversion with enhanced outward light
Gyudam Jeon   +3 more
wiley   +1 more source

Melting behavior of confined Ga particles studied by internal friction

open access: yes, 2007
Gallium (Ga) particles dispersed in polymethyl methacrylate were prepared by ultrasonic vibration and sedimentation method, and the melting behavior of Ga particles was studied by internal friction method via dynamic mechanical analyzer (DMA).
Zheng K   +6 more
core  

Ultra‐Thin Tow‐Based Discontinuous Composites—Material Overview and Aspirations

open access: yesAdvanced Functional Materials, EarlyView.
Tow‐based discontinuous composites made from ultra‐thin tapes offer outstanding in‐plane mechanical properties. This material, inspired by Nacre, has high volume fraction of tapes exceeding 90 % and allows for quasi‐isotropic material plates less than 100 micrometer in thickness.
Ioannis Katsivalis   +8 more
wiley   +1 more source

Surface effects in adhesion, friction, wear, and lubrication /

open access: yes, 1981
Includes bibliographical references and indexes.Print version record.Front Cover; Surface Effects in Adhesion, Friction, Wear, and Lubrication; Copyright Page; Preface; Contents; Chapter 1. Introduction; Chapter 2.
Buckley, Donald H.
core  

Friction measurement on towpregs for the filament winding

open access: yesEuropean Journal of Materials
This study focuses on the measurement of frictional properties of towpregs applied in filament winding processes for carbon fiber reinforced plastic (CFRP) manufacturing.
Benedikt Bergmann, Jens Schlimbach
doaj   +1 more source

Pressure‐Assisted Drug Delivery Using High‐Pressure Balloon Platform Improves Vascular Drug Penetration and Anti‐Restenotic Effects

open access: yesAdvanced Healthcare Materials, EarlyView.
A dual‐layer high‐pressure drug‐coated balloon (HP@DCB) increased balloon‐wall contact and promoted deeper paclitaxel (PTX) penetration than a conventional noncompliant DCB. In in vivo study, HP@DCB treatment improved luminal patency and reduced neointimal hyperplasia, supporting pressure‐assisted drug delivery as a promising strategy for enhancing the
Seung Jin Eo   +10 more
wiley   +1 more source

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