Results 131 to 140 of about 3,185,743 (295)

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

IDPs in the Balkans - the challenges of sustainable return [PDF]

open access: yesForced Migration Review, 2005
Brookings Institution-University of Bern Project on Internal Displacement
doaj  

Study on Deformation Measurement in Surrounding Rock Failure Model Test of Deep Roadway

open access: yes工程科学与技术, 2010
:In order to accurately measure the internal deformation in geo-mechanical model test, Based on surrounding rock failure model test of deep roadway, fiber Bragg grating strain sensors and grating ruler displacement sensors were laid in the model to ...
Liu Dejun   +4 more
doaj  

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

open access: yesAdvanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares   +3 more
wiley   +1 more source

Flexural Behavior of 3D‐Printed Porous Bouligand‐Structured Polymers: Influence of Pitch Angle and Porosity

open access: yesAdvanced Engineering Materials, EarlyView.
This study examines how helicoidal architectures with different porosities respond to bending. Adjusting layer angle and spacing in 3D‐printed polymers reveals clear tradeoffs between stiffness, strength, and energy absorption. Experiments and simulations highlight designs that distribute stress effectively, offering pathways for optimizing lightweight
Praveenkumar Subhash Patil   +2 more
wiley   +1 more source

Electing Displacement: Political Cleansing in Apartadó, Colombia [PDF]

open access: yes
This article highlights a nefarious effect of elections during civil wars by demonstratingthat they can facilitate the displacement of civilians. This occurs through two main mechanisms: they reveal information about civilians' loyalties directly to ...
Abbey Steele
core  

Book Reviews: Internal Displacement and the Law

open access: yes
Book-length studies on internal displacement and law are rare, with just a handful having ever been published. To therefore have two such texts published in just two years is a real treat for legal scholars and goes some way towards remedying what Bríd ...
B Hudson (9888938)
core   +4 more sources

Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev   +2 more
wiley   +1 more source

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