Results 81 to 90 of about 11,015,445 (288)

Standards guidelines for human comfort tested on timber footbridges

Semina: Ciências Exatas e Tecnológicas, 2011
Activities such as walking, running and jumping can produce undesirable dynamic excitations, which are a phenomenon that occurs due to pedestrian-induced dynamic forces whenever a footbridge features a natural frequency within stepping frequency ranges ...
Pedro Gutemberg de Alcântara Segundinho, Antonio Alves Dias, Marcelo Rodrigo Carreira   +2 more
doaj  

Three-Dimensional Numerical Analysis of Traffic-Induced Vibrations: Investigating the Effects of Road Surface Unevenness and Soil Stiffness

Advances in Civil Engineering
In the present paper, a three-dimensional (3D) numerical model was established to assess the ground vibrations induced by vehicles traversing road surface irregularities.
Hussein Hadi Hussein, Mohannad Mhanna
doaj   +1 more source

Evaluation of human-induced vibration of ferrocement in lightweight constructive systems

Results in Engineering
This study investigates ferrocement slabs' dynamic response to human-induced vibrations in lightweight construction systems. Ferrocement is a sustainable and cost-effective material valued for its durability and versatility, yet its performance under ...
Ingrid Elizabeth MADERA  SIERRA, Jose CAPA  SALINAS, Manuel Alejandro ROJAS  MANZANO, Aydée Patricia GUERRERO  ZÚÑIGA   +3 more
doaj   +1 more source

Polymer Side‐Chain Electronic Effects Regulating Solvation Sheath for Low‐Temperature and High‐Voltage Lithium Metal Batteries

Advanced Functional Materials, EarlyView.
This work reveals the influence of polymer side‐chain electronic effects on the Li+ solvation sheath in gel polymer electrolytes. Electron‐donating side chains induce the strong Li+ coordination and FDMA‐dominated solvation, impeding Li+ desolvation, whereas electron‐withdrawing side chains weaken Li+ coordination, facilitating anion‐rich solvation and
Xianbin Wu, Zhenxiang Zhu, Haotian Yang, Dayao Zhang, Zhen Geng, Cunman Zhang, Mingzhe Xue, Jian Wang   +7 more
wiley   +1 more source

Stabilization of Strongly Reduced Fe(I) Single Atom Species Coordinated in a 2D Self‐Assembled Metal–Organic Network

Advanced Functional Materials, EarlyView.
A graphene‐supported 2D metal–organic network stabilizes highly reactive Fe(I)‐N4 single sites through Co‐induced charge redistribution. Combined experiments and theory reveal Fe(I) formation, oxygen‐driven oxidation, and O2 activation mechanisms, offering a strategy to access low‐valent iron centers relevant to catalytic and biological processes ...
Alessandro Namar, Basant Roondhe, Michela De Col, Stefania Baronio, Matteo Jugovac, Mattia Scardamaglia, Eleanor Frampton, Nikolay Vinogradov, Paolo Giannozzi, Erik Vesselli   +9 more
wiley   +1 more source

Vision-Based Trajectory Reconstruction in Human Activities: Methodology and Application

Sensors
Modern civil engineering structures, such as footbridges, are increasingly susceptible to vibrations induced by human activities, emphasizing the importance of accurately assessing crowd-induced loading. Developing realistic load models requires detailed
Jasper Lottefier, Peter Van den Broeck, Katrien Van Nimmen   +2 more
doaj   +1 more source

Design of Lightweight Footbridges for Human Induced Vibrations [PDF]

, 2009
Nowadays, it is well-known that for the structural safety verification of footbridges, and for the comfort guarantee of its users, it is fundamental to consider the effect of human induced vibrations, particularly: vibrations due to pedestrian traffic ...
SCHLAICH Mike, LUKIC Mladen, KEIL Andreas, BUTZ Chr., MARTIN Pierre-Olivier, CUNHA Alvaro, GOLDBECK Arndt, LEMAIRE Armand, HEINEMEYER Cristoph, CAETANO Elsa, SEDLACEK G., HEINEMEYER Chr., BUTZ Christiane, GERADIN Michel, CHABROLIN Bruno, TROMETOR Stefan   +15 more
core   +1 more source

Decoupling Li+ Transport in Self‐Healing Polymer Dual‐Salt Electrolytes for Room Temperature Lithium Metal Batteries

Advanced Functional Materials, EarlyView.
A self‐healable polymer matrix, crosslinked via dynamic imine bonds, is synergistically coupled with a LiPF6–LiDFOB dual‐salt system to decouple Li+ from the polymer matrix, enabling fast Li+ transport. This strategy offers an effective pathway toward high‐performance, next‐generation gel‐polymer‐based Li‐metal batteries.
Soumallya Banerjee, Yu‐Te Chen, Chi‐Hsuan Lee, Atul Dhage, Zeeshan Alam Ansari, Chun‐Wei Pao, Shun‐Hsiang Chan, Shun‐Ming Huang, Chu‐Chen Chueh, Hong‐Cheu Lin, Chih Wei Chu   +10 more
wiley   +1 more source

Degradable, Skin‐Conformal Nanocomposite‐Based Bioelectronic Patches for High‐Fidelity Electrophysiology and Gesture‐Controlled Robotics

Advanced Functional Materials, EarlyView.
A degradable, skin‐conformal bioelectronic patch combines a starch‐dominated nanocomposite conductor with a gelatin substrate to enable sensitive strain sensing, high‐fidelity electrocardiography, electromyography, electrooculography, and machine‐learning‐assisted gesture control.
Ming Dong, Hongna Yuan, Shubo Liu, Abdulkadir Sanli, Emiliano Bilotti, Han Zhang, Pietro Cataldi, Karin Hing, Oliver Fenwick, Colin J. Humphreys, Dimitrios G. Papageorgiou   +10 more
wiley   +1 more source

3D‐Printed Gradient Shape‐Memory Strain Sensors With Rewritable Gauge Factors

Advanced Functional Materials, EarlyView.
A 3D‐printed shape‐memory strain sensor combines thermomechanical programming with gradient architectural design. Preset strain rewrites the gauge factor (GF), while the gradient geometry amplifies the response through strain redistribution. Reprogrammable sensitivity enables the same sensor to detect weak pulse signals and monitor large‐amplitude ...
Xuan Zhang, Wenjie Qiao, Kaixin Jiang, Sherry Chen, Hanyu Cui, Kirsten Dyer, Xuefeng Zhu, Ting Wang, Xuehua Zhang, Ben Bin Xu, Jie Kong   +10 more
wiley   +1 more source