Results 91 to 100 of about 138,614 (378)

High Entropy Wide‐Bandgap Borates with Broadband Luminescence and Large Nonlinear Optical properties

open access: yesAdvanced Functional Materials, EarlyView.
High‐entropy rare‐earth borates exhibit excellent nonlinear optical and broadband luminescence properties arising from multi‐component doping, chemical disorder, increased configurational entropy, and increased lattice and electronic anharmonicity. This formulation enabled us to obtain a large, environmentally stable single crystal with 3X higher laser‐
Saugata Sarker   +14 more
wiley   +1 more source

Numerical Simulation of Vortex⁃Induced Vibration of Cylinder with Porous Media

open access: yesLiaoning Shiyou Huagong Daxue xuebao
Vortex⁃induced vibration represents a critical mechanism of structural damage,which not only reduced service life of workpieces but can also lead to structural deformation and failure,thereby posing safety risks or causing economic losses.
Yangxi GAI   +4 more
doaj   +1 more source

Smart materials application on high performance sailing yachts for energy harvesting [PDF]

open access: yes, 2013
Piezoelectric patches are bounded on a keel bulb in order to harvest vibration energy by converting electrical output. Unsteady computational fluid dynamics method is also used to find the structural boundary condition such as the hydrodynamic pressure ...
Khorasanchi, Mahdi   +2 more
core  

Flow and air-entrainment around partially submerged vertical cylinders [PDF]

open access: yes, 2019
In this study, a partially submerged vertical cylinder is moved at constant velocity through water, which is initially at rest. During the motion, the wake behind the cylinder induces free-surface deformation. Eleven cylinders, with diameters from $D=1.4$
Ageorges, Valentin   +2 more
core   +8 more sources

MAGTWIST: A Magnetically‐Driven Rotary Actuator Using a Traveling‐Wave With Integrated Stiffness Tunability

open access: yesAdvanced Functional Materials, EarlyView.
MAGTWIST: A compact magnetic rotary actuator, enabling smooth, stepless rotation, and on‐demand locking. Inspired by peristalsis, a soft polymer belt generates a traveling‐wave, enabling 270° rotation when heated. Cooling stiffens the belt, locking it in position and enabling it to withstand high loads.
Simon Frieler   +3 more
wiley   +1 more source

Experimental study on vortex induced vibration (VIV) of a wide-D-section cylinder in a cross flow

open access: yesTheoretical and Applied Mechanics Letters, 2015
Wake structures and vortex induced vibration (VIV) of a spring-supported wide-D-section cylinder were experimentally investigated using an X-wire, a novel phase-locked particle image velocimetry (PIV), and an acceleration sensor at a low speed wind ...
Qingyang Wang, Mogeng Li, Shengjin Xu
doaj   +1 more source

Drug‐Free Thrombolysis Mediated by Physically Activated Micro/Nanoparticles

open access: yesAdvanced Functional Materials, EarlyView.
Overview of particle‐mediated thrombolytic effects (thermal, mechanical, and chemical) and their activating physical stimuli (light, ultrasound, and magnetic field) in drug‐free thrombolysis. ABSTRACT Thrombus‐associated disorders rank among the world's leading causes of death, with ischemic heart disease and stroke as the main contributors.
Pierre Sarfati   +2 more
wiley   +1 more source

Study on Fluid-Induced Vibration Power Harvesting of Square Columns under Different Attack Angles

open access: yesGeofluids, 2017
A model of the flow-vibration-electrical circuit multiphysical coupling system for solving square column vortex-induced vibration piezoelectric energy harvesting (VIVPEH) is proposed in this paper. The quasi steady state theory is adopted to describe the
Meng Zhang, Guifeng Zhao, Junlei Wang
doaj   +1 more source

Entrainment phenomenon by forced displacement excitation in vortex induced vibration

open access: yesNihon Kikai Gakkai ronbunshu, 2020
This paper deals with the entrainment phenomenon by forced displacement excitation in vortex induced vibration of structures. This phenomenon can occur when a long-period earthquake occurs in a super high-rise structure that may have vortex induced ...
Yutaka YOSHITAKE   +5 more
doaj   +1 more source

Investigating the effect of rotational degree of freedom on a circular cylinder at low reynolds number in cross flow [PDF]

open access: yes, 2011
Numerical simulations of Vortex-Induced Vibrations (VIV) of a circular cylinder in cross flow with a rotational degree of freedom about its axis have been carried out by means of a finite-volume method.
Bahai, H, Madani, SH, Wissink, J
core   +1 more source

Home - About - Disclaimer - Privacy