Results 81 to 90 of about 108,443 (306)

Photothermal Macroporous Lignin Cryogels for Off‐Grid, Continuous Atmospheric Water Collection via Interlayer Heat Recovery

Advanced Functional Materials, EarlyView.
Photothermal, macroporous lignin‐based cryogels are engineered to convert sunlight into low‐grade heat. Integrated as stacked beds in a drum‐type device, a thin copper interlayer transfers waste heat between beds, enabling interlayer heat recovery and continuous solar cycling.
Jie Yan, Jiqing Lu, Tian Bai, Lin Li, Zhaoxuan Niu, Yiying Yue, Wanli Cheng, Guangping Han, Orlando J. Rojas   +8 more
wiley   +1 more source

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  

Innovative Experimental Assessment of Human–Structure Interaction Effects on Footbridges with Accurate Multi-Axial Dynamic Sensitivity Using Real-Time Hybrid Simulation

Applied Sciences
This study evaluates the dynamic performance of a reference footbridge under human–structure interaction (HSI) effects using real-time hybrid simulation (RTHS).
Bryan Castillo, Johannio Marulanda, Peter Thomson   +2 more
doaj   +1 more source

Suppression of Photo‐Mediated Traps in Integrated Organic Photovoltaic–Photodetector Devices via N‐Type Self‐Assembly‐Driven Interfacial Engineering

Advanced Functional Materials, EarlyView.
Conventional unstable electron transport layers (ETLs) limit self‐powered organic sensors. This work resolves this by developing a n‐type self‐assembled monolayer (SAM), “3‐PAPh”. This SAM forms a chemically stable and structurally ordered interface that fundamentally suppresses defect formation.
Ohhyun Kwon, Jae Hoon Son, Tae Hyuk Kim, Gyeong Min Lee, Seunghyun Oh, Gayoung Ham, Min Jong Lee, Sang Heon Lee, Seon Joong Kim, Hyojung Cha, Han Young Woo, Jae Won Shim   +11 more
wiley   +1 more source

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

Effect of Low-magnitude, High-frequency Vibration on Osteocytes in the Regulation of Osteoclasts [PDF]

, 2010
Osteocytes are well evidenced to be the major mechanosensor in bone, responsible for sending signals to the effector cells (osteoblasts and osteoclasts) that carry out bone formation and resorption. Consistent with this hypothesis, it has been shown that
Al-Dujaili, Saja, Guenther, Axel, Lau, Esther, Liu, Dawei, Wang, Liyun, You, Lidan   +5 more
core   +2 more sources

An Ultrafast Self‐Gelling Versatile Hydrogel for Rapid Infected Burn Wound Repair in Military Medicine

Advanced Functional Materials, EarlyView.
A self‐gelling PG@PAC (POD/Gel‐CDH@PA/CHX) powder is developed for infected burn care in austere settings. Upon contact with wound exudate, it instantly forms an adhesive hydrogel, providing simultaneous hemostasis, broad‐spectrum antibacterial activity, reactive oxygen species scavenging, and immunomodulation. In a murine model of S.
Liping Zhang, Zhangrui Wu, Xiansheng Zhao, Geng Wang, Quyang Yang, Minxia zhang, Xiaowei Wang, Xiujun Cheng, Changyue Wu, Dan Wu, Yutian Yang, Canbin Dong, Tao Zhang, Weiqiang Tan, Ningwen Zhu   +14 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

Evaluation of floor vibrations induced by walking in reinforced concrete buildings

, 2013
Floor vibrations induced by human walking were investigated in a reinforced concrete structure. Six experimental floor structures were built in laboratories with the same dimensions and boundary conditions.
Griffin, M.J., Lee, Byung Kwon, Lee, Pyoung Jik   +2 more
core