Results 51 to 60 of about 20,023 (249)

Programming Actuation in 3D‐Printed Micro‐Architectures via Interfacial Adhesion Control

Advanced Materials Technologies, EarlyView.
A two‐phase meniscus‐guided 3D printing method directly fabricates microscale poly(3,4‐ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) and poly(vinyl alcohol) (PVA) bilayers with in situ programmable interfaces. Modulating the meniscus stretching speed switches the interface between separated and bonded states, which controls the mechanical ...
Xiao Huan, Juhyung Kim, Yujin Park, Shiqi Hu, Jihyuk Yang, Nan Huang, Feipeng Chen, Yu Liu, Sixi Cao, Zhuoran Wang, Ho Cheung Shum, Barbara Pui Chan, Dongwoon Shin, Ji Tae Kim   +13 more
wiley   +1 more source

The morphology of fractal nano-objects in crystals of A2VB3VI [PDF]

Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2011
On interlayer surfaces of crystals of Bi2Te3 and Sb2Te3 as a result of self-organisation are formed nano formations of following types: the pyramidal inclusions, parallel plates and the fragments similar Koch fractal surface.
Aliyeva A. P., Kahramanov K. Sh., Kahramanov S. Sh.   +2 more
doaj  

Finite element analysis of the ECT test on mode III interlaminar fracture of carbon-epoxy composite laminates [PDF]

, 2006
In this work a parametric study of the Edge Crack Torsion (ECT) specimen was performed in order to maximize the mode III component (GIII) of the strain energy release rate for carbon-epoxy laminates.
Morais, A. B. de, Moura, M. F. S. F. de, Morais, J. J. L., Silva, M. A. L.   +3 more
core  

Microscale Mapping of Fiber Strain and Damage in Composite Wrinkled Laminates Using Computed Tomography Assisted Wide‐Angle X‐Ray Scattering

Advanced Science, EarlyView.
This study combines full‐field tomography with diffraction mapping to quantify radial (ε002$\varepsilon _{002}$) and axial (ε100$\varepsilon _{100}$) lattice strain in wrinkled carbon‐fiber specimens for the first time. Radial microstrain gradients (−14.5 µεMPa$\varepsilon \mathrm{MPa}$−1) are found to signal damage‐prone zones ahead of failure, which ...
Hoang Minh Luong, James Trevarthen, Igor Dolbnya, Wadwan Singhapong, Nicholas Pilato, Richard Butler, Jiraphant Srisuriyachot, Alexander J. G. Lunt   +7 more
wiley   +1 more source

Wake‐Up and Fatigue under Electrical Cycling in HfO2‐Based Ferroelectrics: Mechanisms and Strategies toward Reliable Devices

Advanced Science, EarlyView.
HfO2‐based ferroelectrics exhibit wake‐up and fatigue behaviors during electrical cycling, significantly affecting device endurance and reliability. These phenomena are governed by defect dynamics, including oxygen vacancy redistribution and charge trapping.
Hongseok Kim, Shinhyeong Lee, Hyojun Choi, Minseung Park, Hyunah Cho, Min Hyuk Park, Yunseok Kim   +6 more
wiley   +1 more source

Endoscopic‐Assisted Peri‐Root Anesthesia Provides Superior Intraoperative Analgesia Over Epidural Anesthesia in L5–S1 Interlaminar Endoscopic Discectomy

Orthopaedic Surgery
Objective Interlaminar endoscopic lumbar discectomy, particularly with the Delta large‐channel system, offers significant advantages in treating L5–S1 disc herniation.
Hengrui Chang, Yuanqing Niu, Yiwen Zhang, Qi'ao Wu, Jiayuan Sun, Di Zhang, Jiaxin Xu   +6 more
doaj   +1 more source

Enhancement of the Interlaminar Fracture Toughness of a Carbon-Fiber-Reinforced Polymer Using Interleaved Carbon Nanotube Buckypaper

Applied Sciences, 2021
In this study, a carbon nanotube (CNT) buckypaper was interleaved in a carbon-fiber-reinforced polymer (CFRP) composite to improve the interlaminar fracture toughness. Interleaving the film of a laminate-type composite poses the risk of deteriorating the
Yong-Chul Shin, Seung-Mo Kim
doaj   +1 more source

Interlaminar shear stress function for adhesively bonded multi-layer metal laminates

, 2018
A new analytical model is proposed for the estimation of interlaminar shear stress in adhesively bonded metal laminates consisting of an arbitrary number of layers. The interface shear stress in the laminates is related to the difference in average axial
R. Umer, W. Zaki, N.V. Viet, Zaki, W., Umer, R., Viet, N. V.   +5 more
core   +1 more source

Beyond Traditional Phenolics: Disulfide Bonds for Performance Enhancement of Aerospace Ablation‐Resistant Materials from Processing to Recycling

Advanced Science, EarlyView.
The dynamic disulfide bonds facilitated the development of high‐performance aerospace ablation‐resistant materials. At moderate temperature, the dissociation and recombination of disulfide bonds ensured excellent processability, mechanical properties, and recycling ability of phenolic resin; at high temperature, cleavage of disulfide bonds produced ...
Yu Li, Boyuan Hu, Xiaolong Xing, Huan Yang, Ziqi Zhang, Cheng Bian, Ruixue Bai, Ling Yue, Chengshuang Zhang, Xinli Jing   +9 more
wiley   +1 more source

Cervical Epidural Steroid Injection: Can It Be Savior or Disaster for Patients?

International Journal of Pain
Cervical epidural steroid injection (CESI) is conducted to treat the patient with neck or upper limb pain from various cervical pathologies. Despite its clinical usefulness that have been supported by numerous literatures, concerns for serious ...
Jung Hwan Lee
doaj   +1 more source