Results 61 to 70 of about 4,163 (215)

A Deep Learning-Driven Framework for Real-Time Recognition and Quantification of Subway Tunnel Surface Defects Using High-Resolution Imaging

Urban Rail Transit
Subway tunnels, with their complex underground environment, frequently develop surface defects like cracks and water leakage over time. Traditional manual inspection methods are inadequate for current accuracy and efficiency needs.
Zunchao Ren, Yanyi Liu, Dukun Zhao, Yueji He, Junjie Zhang   +4 more
doaj   +1 more source

Oxygels: Tunable Phosphorescent Hydrogels for Cherenkov‐Excited Luminescence Imaging (CELI) of Oxygen

Advanced Healthcare Materials, EarlyView.
Biocompatible hydrogels with covalently embedded near‐infrared phosphorescent probes enable local tissue pO2 quantification by means of Cherenkov‐excited luminescence imaging (CELI), where optical excitation occurs within tissues upon irradiation with high‐energy electron beams.
Simin Belali, Marien Iliza Ochoa Mendoza, Matthew S. Reed, Danylo Mykhalchuk, Annemarie Lang, Joel D. Boerckel, Brian W. Pogue, Sergei A. Vinogradov   +7 more
wiley   +1 more source

Study on the impact of vehicle-induced vibration on the flexural behavior of UHPC joints in widened bridges

Urban Lifeline
Bridge widening involves phased construction of adjacent structures to maintain uninterrupted traffic flow. This process exposes freshly placed longitudinal joints between staged deck constructions to vehicle-induced vibrations, potentially compromising ...
Jun Yang, Jingchen Leng, Jianting Zhou, Rui Chen, Kun Yu, Zhimei Jiang, Yang Zou, Zhongya Zhang, Jiang Du   +8 more
doaj   +1 more source

A state-of-the-art review on loess tunnels

Journal of Traffic and Transportation Engineering (English ed. Online)
China's loess distribution area covers 640,000 km2, accounting for about 6.6% of its land area and about 4.9% of the world's total loess distribution area.
Jianxun Chen, Yanbin Luo, Yao Li, Shuai Yuan, Jiawei Xu, Jiading Wang, Shengjun Shao, Yasheng Luo, Ling Xu, Xuansheng Cheng, Xiong Qiao, Wenge Qiu, Mingnian Wang, Li Yu, Zhongsheng Tan, Zhanping Song, Qingguo Liang   +16 more
doaj   +1 more source

Ferroelectric Quantum Dots for Retinomorphic In‐Sensor Computing

Advanced Materials, EarlyView.
This work has provided a protocol for fabricating retinomorphic phototransistors by integrating ferroelectric ligands with quantum dots. The resulting device combines ferroelectricity, optical responsiveness, and low‐power operation to enable adaptive signal amplification and high recognition accuracy under low‐light conditions, while supporting ...
Tingyu Long, Huanyu Zhou, Jaewan Ko, Hongwei Tan, Jaemin Lim, Yanfei Zhao, Daehan Kang, Eojin Yoon, Gyeong‐Tak Go, Somin Kim, Seung‐Woo Lee, Chan‐Yul Park, Hyojun Choi, Hyeran Kim, Hyung Joong Yun, Sung Hyuk Park, Kwan Sik Park, Jeong Woo Park, Mungeun Kim, Yong Soo Cho, Ho Won Jang, Wenqiang Yang, Min Hyuk Park, Wan Ki Bae, Sebastiaan van Dijken, Joona Bang, Tae‐Woo Lee   +26 more
wiley   +1 more source

Research status and new design concept of compressed air energy storage technology in abandoned mine

Meitan kexue jishu
Compressed air energy storage(CAES) can be widely used in power grid peak load shifting and large-scale new energy consumption. It has the advantages of large installed capacity, long service life, and clean environmental protection, and is regarded as ...
Hanpeng WANG, Yunhao WU, Bing ZHANG, Jianguo FAN, Mengtian LI, Jiancai SUI, Wei WANG, Dekang SUN   +7 more
doaj   +1 more source

An Improved Numerical Model of Shield Tunnel with Double Lining and Its Applications

Advances in Materials Science and Engineering, 2015
Based on the existing numerical models of shield tunnel with double lining, an improved numerical model is developed and its rationality is verified by a similar model test.
Qi-xiang Yan, Chao-fan Yao, Wen-bo Yang, Chuan He, Ping Geng   +4 more
doaj   +1 more source

Strain Engineering of Magnetoresistance and Magnetic Anisotropy in CrSBr

Advanced Materials, EarlyView.
Biaxial compressive strain significantly enhances magnetoresistance and critical saturation fields in thin flakes of the 2D magnet CrSBr, along all three crystallographic axes. First‐principles calculations link these effects to strain‐induced increases in exchange interactions and magnetic anisotropy.
Eudomar Henríquez‐Guerra, Alberto M. Ruiz, Marta Galbiati, Álvaro Cortés‐Flores, Daniel Brown, Esteban Zamora‐Amo, Lisa Almonte, Andrei Shumilin, Juan Salvador‐Sánchez, Ana Pérez‐Rodríguez, Iñaki Orue, Andrés Cantarero, Andres Castellanos‐Gomez, Federico Mompeán, Mar Garcia‐Hernandez, Efrén Navarro‐Moratalla, Enrique Diez, Mario Amado, José J. Baldoví, M. Reyes Calvo   +19 more
wiley   +1 more source

Study on the Influence Factors of Surrounding Tunnel Longitudinal Deformation Caused by Pit Excavation Based on Nonlinear Pasternak Modeling

Buildings
In practical engineering, it is often necessary to constructed deep pits next to tunnels. So it is crucial to evaluate surrounding tunnels deformation and stress to ensure their safe operation.
Honghua Zhao, Yutao Song
doaj   +1 more source

Numerical Investigation of Heat-Insulating Layers in a Cold Region Tunnel, Taking into Account Airflow and Heat Transfer

Applied Sciences, 2017
In cold regions, heat-insulating layers play a crucial role in frost prevention in tunnels. This paper presents a numerical study on the anti-freezing behavior of a cold region tunnel (the Dege tunnel) with heat-insulating layers. A numerical model based
Qixiang Yan, Binjia Li, Yanyang Zhang, Jian Yan, Chuan Zhang   +4 more
doaj   +1 more source