Results 111 to 120 of about 18,372 (261)

The effect of vibratory stress on the welding microstructure and residual stress distribution [PDF]

, 2001
Previous studies have suggested that weld microstructure may be modified by the presence of static stresses. In this investigation, vibratory stress was applied to mild steel specimens while they were being welded to observe its effect on the residual ...
Munsi, A.S.M.Y., Waddell, A.J., Walker, C.A.   +2 more
core  

Microglia‐Targeted Biomimetic Tetrahedral Framework Nucleic Acid Nanovesicles for Synergistic Treatment of Sepsis‐Associated Encephalopathy

Advanced Science, EarlyView.
Sepsis‐associated encephalopathy (SAE) lacks effective therapies. We developed ME@FDsi, a biomimetic nanodrug using a tetrahedral framework nucleic acid to deliver disulfiram and siTNFα. It crosses the blood‐brain barrier, targets M1 microglia, inhibits pyroptosis and inflammation, and scavenges ROS.
Huimin Shi, Qiuxia Gao, Wenying Wang, Bin Li, Yukun Chen, Zhijun Yao, Yujie Li, Junrui Li, Na Li, Gong Gu, Zhimin Hou, Mengyuan Yang, Ruilin Zhang, Hongju Yang, Yuhui Liao, Hongyi Lei   +15 more
wiley   +1 more source

Elimination of Low-Angle Grain Boundary Networks in FeCrAl Alloys with the Electron Wind Force at a Low Temperature

Metals
Low-angle grain boundaries (LAGBs) accommodate residual stress through the rearrangement and accumulation of dislocations during cold rolling. This study presents an electron wind force-based annealing approach to recover cold-rolling induced residual ...
Md Hafijur Rahman, Sarah Todaro, Luke Warner, Daudi Waryoba, Aman Haque   +4 more
doaj   +1 more source

Ripple Texturing of Suspended Graphene Atomic Membranes

, 2009
Graphene is the nature's thinnest elastic membrane, with exceptional mechanical and electrical properties. We report the direct observation and creation of one-dimensional (1D) and 2D periodic ripples in suspended graphene sheets, using spontaneously and
A Isacsson, ALV de Parga, C Lee, CH Park, Chris Dames, Chun Ning Lau, DC Elias, E Cerda, E-A Kim, F de Juan, F Guinea, F Guinea, F Miao, F Scarpa, Feng Miao, H Watanabe, Hang Zhang, IF Herbut, JC Meyer, JS Bunch, KI Bolotin, KS Novoselov, KV Zakharchenko, L Brey, ME Simon, MI Katsnelson, N Bowden, N Mounet, OL Blakslee, P Peyla, PK Schelling, SV Morozov, TO Wehling, Wanyoung Jang, Wenzhong Bao, X Du, YB Zhang, YK Kwon, YW Wong, Zhen Chen   +39 more
core   +1 more source

Robust and Tailored 1D/3D Heterojunction for Efficient and Stable Perovskite Solar Cells

Advanced Science, EarlyView.
This study successfully established a robust 1D/3D heterojunction, characterized by a stable 1D phase, favorable lattice matching, strong interface binding, and effective defect passivation. The resulting epitaxial perovskite film demonstrates preferential vertical orientation of (100) facets, thereby facilitating carriers’ transport and stress relief.
Wending Hao, Tao Liu, Xu Wang, Luan Li, Ziyu Zhang, Fengqi Sun, Qiang Luo, Ning Wang   +7 more
wiley   +1 more source

On Microstructure Evolution and Magnetic Properties of Annealed FeNiCrMn Alloy

Metals
Fe-Ni-based alloys have attracted attention due to their potential for applications such as transmission line de-icing, where the core requirements include a Curie temperature near the freezing point and sufficient saturation magnetization.
Yu Zhang, Caili Ma, Jingwen Gao, Wenjie Chen, Song Zhang, Xia Huang   +5 more
doaj   +1 more source

Ultrasound Activated Piezoelectric Dural Patches to Drive Endogenous Neural Stem Cell–Mediated Repair Traumatic Brain Injury

Advanced Science, EarlyView.
This study presents a wireless, non‐invasive strategy for neural repair by developing a biodegradable piezoelectric dural patch that, under transcranial ultrasound, generates localized electrical fields to drive endogenous neural stem cells toward neuronal differentiation and functional integration.
Pengbo Zhou, Qingyuan Wu, Yang Wu, Runzhe Huang, Wei Li, Hanjie Niu, Hongtao Sun, Huiyu Liu   +7 more
wiley   +1 more source

A systematic plan for the continued study of dimensional stability of metallic alloys considered for the fabrication of cryogenic wind tunnel models [PDF]

Interrelated research and development activities, phased development of stepped specimen program are documented and a sequence for a specific program of machining, validation and heat treatment cycles for one material are described. Proposed work for the
Wigley, D. A.
core   +1 more source

Fluorine‐Doping of Mesoporous TiO2 Enables Efficient Defect Passivation for High‐Efficiency and Stable Perovskite Solar Cells

Advanced Science, EarlyView.
We introduce an SF6 RIE plasma fluorination method for mesoporous TiO2, suppressing oxygen vacancies and improving charge extraction. The fluorinated TiO2 promotes uniform FAPbI3 film formation and enhances device performance under both one‐sun and indoor illumination.
Hye W. Chun, Sang Yeon Lee, Sang Eun Yoon, Gyeong G. Jeon, Veera Murugan Arivunithi, So Jeong Shin, Min Jun Choi, Byeongsu Kim, Min‐Ho Lee, Dohyeon Jeon, Taekyeong Kim, Jung‐Yong Lee, Jong H. Kim   +12 more
wiley   +1 more source

Influence of Subsequent Heat Treatment on Fatigue Behavior of Shear-Cut Electrical Steel Sheets

Alloys
The fatigue behavior of a fully processed, non-oriented electrical steel sheet is investigated in dependence on shear-cutting parameters and a subsequent heat treatment.
Albin Gottwalt-Baruth, Paul Kubaschinski, Manuela Waltz, Ulrich Tetzlaff   +3 more
doaj   +1 more source