Results 111 to 120 of about 14,989 (264)

Shaping Matter with Acoustic Waves: From Particles to Functional Structures

open access: yesAdvanced Functional Materials, EarlyView.
Acoustic‐directed assembly is reviewed as a materials‐oriented strategy for organizing particles, polymers, metals, and biological systems into functional structures. The review distinguishes reversible manipulation from permanent structure formation through medium fixation, particle fixation, and in situ material generation, highlighting routes toward
Avraham Kenigsberg   +5 more
wiley   +1 more source

Investigation into noise emitted by bluff bodies with large roughness [PDF]

open access: yes, 2013
A set of wind tunnel experiments were performed to study the effect of large surface roughness on circular cylinder noise, with the goal of improving landing gear noise predictions. Roughness increases vortex shedding noise levels, and shifts the peak to
Alomar, Antoni
core  

All‐Solution‐Processed HgTe Quantum Dot Photodetectors for Extended Short‐Wavelength Infrared Range Enhanced by Plasmonic ITO Nanocrystals

open access: yesAdvanced Functional Materials, EarlyView.
All‐solution‐processed, low‐cost extended short‐wavelength infrared photodetectors are realized by coupling colloidal HgTe quantum dots to plasmonic In2O3:Sn,F nanocrystals. Localized surface plasmon resonances boost and spectrally tailor light absorption between 1500 and 3000 nm, enabling responsivities above 40 A W−1.
Kseniia A. Sergeeva   +9 more
wiley   +1 more source

Numerical simulation of rivulet evolution on a circular cylinder in an airflow [PDF]

open access: yes, 2008
On wet and windy days, the inclined cables of cable-stayed bridges may experience a large amplitude oscillation known as Rain-Wind-Induced Vibration (RWIV).
Robertson, A.C., Taylor, I.J.
core  

The interaction between flow-induced vibration mechanisms of a square cylinder with varying angles of attack [PDF]

open access: yes, 2012
This study examines the influence of angle of attack of a square section cylinder on the cylinder’s flow-induced vibration, where the direction of the vibration is transverse to the oncoming flow.
Nemes, Andras   +3 more
core   +1 more source

High‐Efficiency PFOA Removal by Microstructure‐Engineered Ultrathin Amphiphilic Mesoporous Reduced Graphene Oxide@Silica

open access: yesAdvanced Functional Materials, EarlyView.
This study developed an amphiphilic ultrathin mesoporous adsorbent through microstructure design, which exhibits remarkable mass transport efficiency and high affinity toward PFAS, thereby achieving an ultrahigh uptake capacity and rapid kinetics for PFAS adsorption.
Yeqiu Zhao   +11 more
wiley   +1 more source

Coagulative Granular Hydrogels with an Enzyme Catalyzed Fibrin Network for Endogenous Tissue Regeneration

open access: yesAdvanced Healthcare Materials, EarlyView.
Coagulative granular hydrogels are composed of packed thrombin‐functionalized microgels that catalyze the conversion of fibrinogen into a secondary fibrin network, filling the interstitial voids. This bio‐inspired approach stabilizes the biomaterial to match the robustness of bulk hydrogels without compromising injectability, mimicking the initial ...
Zhipeng Deng   +16 more
wiley   +1 more source

Effects of Regional Magnetic Field on Rotating MHD Flow Field of Unity Magnetic Prandtl Number

open access: yesJournal of Applied Mathematics, 2012
This work numerically studies the flow pattern of a magnetic fluid filled within an annulus whose inner cylinder is moving at a constant rotational speed, while the outer cylinder is stationary but under the influence of a nonuniform external magnetic ...
Sheng Lun Hung, Jik Chang Leong
doaj   +1 more source

A computational approach for the unsteady flow of maxwell fluid with Caputo fractional derivatives

open access: yesAlexandria Engineering Journal, 2018
In this paper, the velocity field and the time dependent shear stress of Maxwell fluid with Caputo fractional derivatives in an infinite long circular cylinder of radius R is discussed. The motion in the fluid is produced by the circular cylinder.
Ehsan Ul Haque   +4 more
doaj   +1 more source

Plasma based jet actuators for flow control [PDF]

open access: yes, 2012
A set of plasma based jet actuators were designed for flow control applications. The characteristics of these actuators and their flow control applications were studied experimentally in a low speed wind tunnel.A dielectric barrier discharge (DBD) based ...
Luo, Xinfu
core  

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