Results 21 to 30 of about 264 (239)

Parametric Numerical Study and Behavioral Modeling of a Hybrid Steel–SMA Axial Damper [PDF]

Numerical Methods in Civil Engineering
This paper addresses the major parameters affecting the behavior of hybrid dampers consisting of shape-memory alloy (SMA) and steel materials, subjected to cyclic loadings, and a numerical behavioral model is proposed.
Behrouz Asgarian, Majid Amir Ahmadi, Ali Jalaeefar   +2 more
doaj   +1 more source

Parametric Study on Self-centering Precast Concrete Frames with Hysteretic Dampers

Periodica Polytechnica Civil Engineering, 2021
The self-centering precast concrete frame structure combines the advantages of industrialization and low earthquake damage, and its energy dissipation capacity and seismic performance have always been the focus of research. This paper proposed a kind of self-centering precast concrete frame with hysteretic dampers (SCPCHD). Its modular design makes the
Yadong Li, Fangfang Geng, Youliang Ding, Libin Wang   +3 more
openaire   +2 more sources

Seismic Performance Evaluation of Reinforced Concrete Building Structure Retrofitted with Self-Centering Disc-Slit Damper and Conventional Steel Slit Damper

Buildings
To meet the recent requirements of low-damage design, there is a growing need to retrofit building structures with a self-centering dissipation system.
Asad Naeem, Kusunoki Koichi, Joohno Lee
doaj   +1 more source

Pilot Study for Investigating the Cyclic Behavior of Slit Damper Systems with Recentering Shape Memory Alloy (SMA) Bending Bars Used for Seismic Restrainers

Applied Sciences, 2015
Although the steel slit dampers commonly utilized for aseismic design approach can dissipate considerable energy created by the yielding of base materials, large residual deformation may happen in the entire frame structure.
Junwon Seo, Young Chan Kim, Jong Wan Hu
doaj   +1 more source

Molecular characterization of covRS mutations in M1UK Streptococcus pyogenes

FEBS Open Bio, EarlyView.
Group A Streptococcus (GAS) acquires covRS mutations driving a hypervirulent bacterial state, frequently associated with invasive disease‐like necrotizing fasciitis. We demonstrate that the newly emerged M1UK GAS lineage can also acquire these mutations.
Jarrad Pritchard, Emma‐Jayne Proctor, Jiawa Wang, Nikolas P. Johnston, Andrew Hayes, Georgia McCorkell, Haibo Yu, Jai Tree, Mark R. Davies, Mark J. Walker, Ronald Sluyter, Stephan Brouwer, Martina L. Sanderson‐Smith   +12 more
wiley   +1 more source

A Novel Dual Self-Centering Friction Damper for Seismic Responses Control of Steel Frame

Buildings
Due to their weight, the seismic response control of buildings needs a large-scale damper. To reduce the consumption of shape memory alloys (SMAs), this study proposed a dual self-centering pattern accomplished by the coil springs and SMA, which could ...
Juntong Qu, Xinyue Liu, Yuxiang Bai, Wenbin Wang, Yuheng Li, Junxiang Pu, Chunlei Zhou   +6 more
doaj   +1 more source

Hysteretic properties and numerical simulation of new self-centering coupling beams [PDF]

Journal of Hebei University of Science and Technology
Aiming at the problem that the damaged parts in replaceable beam cannot be disassembled and replaced due to excessive residual displacement after strong earthquakes, a new self-centering coupling beams (SCCB) based on shape memory alloy (SMA) rod was ...
Jizhi SU, Zhenyu TONG, Yong LI, Haifeng YU, Haoxuan ZHANG, Zuanfeng PAN   +5 more
doaj   +1 more source

Ultrasensitive Anti‐Stokes Luminescence Thermometry in Transition Metal Dichalcogenide Monolayers

Advanced Functional Materials, EarlyView.
We demonstrate a highly sensitive nanothermometer using anti‐Stokes photoluminescence, also known as photoluminescence upconversion (UPL), in monolayer tungsten disulfide. A strong resonantly enhanced UPL is observed, confirming the central role of optical phonons in the PL upconversion mechanism.
Sharada Nagarkar, Fahrettin Sarcan, Elanur Hut, Emiliano R. Martins, Stuart A. Cavill, Thomas F. Krauss, Yue Wang   +6 more
wiley   +1 more source

Advances in Sustainable and Wearable Textile Based Soft Robotics

Advanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas, Marzia Dulal, Sophia K. Novoselov, Victoria K. Novoselov, Kostya S. Novoselov, Shaila Afroj, Nazmul Karim   +6 more
wiley   +1 more source

SMA-Activated Double-Stage Yielding BRB: Experimental and FEM Insights

Buildings
To address the limitations of traditional buckling-restrained braces (BRB), which feature a single-stage yielding and inadequate energy dissipation under small earthquakes, this study proposes a novel double-stage yielding buckling-restrained brace (DSY ...
Huijie Huang, Jiyang Wang, Dong Yao, Pinghuai Zhou, Senlin Zhao   +4 more
doaj   +1 more source