Results 11 to 20 of about 13,578 (224)

Influence of expansion joint setting on the dynamic characteristics of curved bridges with unseating-prevention devices

工程科学学报, 2015
A finite element model was built for a curve bridge with an unseating-prevention device. The collision effect of the curved bridge under rare earthquake was studied and the dynamic response mechanism was discussed based on this finite element mod-el. The
SONG Bo, HUANG Fu-tang, BI Ze-feng, WANG Yan-xu   +3 more
doaj   +1 more source

Study on Long-Term Dynamic Mechanical Properties and Degradation Law of Sandstone under Freeze-Thaw Cycle

Shock and Vibration, 2020
This study is based on the tunnel-face slope engineering of Dongfeng tunnel in Shanxi section of China’s Shuozhou-Huanghua Railway. The sandstone specimens in the perennial freeze-thaw zone of the slope were collected to carry out freeze-thaw cycle ...
Qingsong Pu, Junhong Huang, Fuling Zeng, Yi Luo, Xinping Li, Jixue Zhou, Shilong Zheng   +6 more
doaj   +1 more source

Application of Combining YOLO Models and 3D GPR Images in Road Detection and Maintenance

Remote Sensing, 2021
Improving the detection efficiency and maintenance benefits is one of the greatest challenges in road testing and maintenance. To address this problem, this paper presents a method for combining the you only look once (YOLO) series with 3D ground ...
Zhen Liu, Wenxiu Wu, Xingyu Gu, Shuwei Li, Lutai Wang, Tianjie Zhang   +5 more
doaj   +1 more source

Research on Actuation Behavior of Piezoelectric Fiber Composite

Taiyuan Ligong Daxue xuebao, 2021
Macrofiber composite material (MFC) is a new type of high performance piezoelectric fiber composite material with great output and strong environmental adaptability.
Hao CHEN, Jianwei TU, Jiarui ZHANG, Zhao LI   +3 more
doaj   +1 more source

Failure mechanism of the large‐section roadway under mined zones in the ultra‐thick coal seam and its control technology

Energy Science & Engineering, 2020
Aiming at serious deformation and failure of large‐section coal roadway under mined zones in ultra‐thick coal seam, its deformation and failure characteristics are analyzed based on the field measurement.
Yang Tai, Hongchun Xia, Xiangbin Meng, Tiejun Kuang   +3 more
doaj   +1 more source

Void Detection of Airport Concrete Pavement Slabs Based on Vibration Response Under Moving Load

Sensors
This study proposes a vibration-based approach for detecting and quantifying sub-slab corner voids in airport cement concrete pavement. Scaled down slab models were constructed and subjected to controlled moving load simulations.
Xiang Wang, Ziliang Ma, Xing Hu, Xinyuan Cao, Qiao Dong   +4 more
doaj   +1 more source

Restoration of Road Pavement Depending on the Degree of Destruction of the Road

Nauka ta progres transportu, 2023
Purpose. The main purpose of this work is to develop a methodology for road pavement restoration depending on the degree of road destruction. Methodology.
O. F. Luzhytskyi, M. B. Kurhan, M. A. Husak, V. I. Ulanovskyi   +3 more
doaj   +1 more source

Moisture Distribution and Ice Front Identification in Freezing Soil Using an Optimized Circular Capacitance Sensor

Sensors
As the interface between frozen and unfrozen soil, the ice front is not only a spatial location concept, but also a potentially dangerous interface where the mechanical properties of soil could change abruptly. Accurately identifying its spatial position
Xing Hu, Qiao Dong, Bin Shi, Kang Yao, Xueqin Chen, Xin Yuan   +5 more
doaj   +1 more source

Deformation Characteristics and Mechanical Mechanism of Collapse Accumulation Body After Coal Mine Disaster

Taiyuan Ligong Daxue xuebao, 2021
After the occurrence of coal mine disaster, roadway collapse and accumulation often block the roadway and the rescue route. Under this condition, it is particularly difficult to excavate the rescue channel.
Guangbo CHEN, Tan LI, Shijiang CHEN, Hongjuan DONG, Guohua ZHANG, Pengcheng TENG   +5 more
doaj   +1 more source

Analog Tensor Processing With Carbon Nanotube In‐Memory Matrix Multiplications for Edge Computer Vision Acceleration

Advanced Materials, EarlyView.
This work prototypes a carbon nanotube‐based analog tensor core that performs in‐memory, parallel visual processing. Integrating non‐volatile memories and compact circuits, the core enables high‐speed analog matrix multiplications and can demonstrate accurate three dimensional (3D) spatial transformation and edge detection. With lightweight design, the
Jingfang Pei, Lekai Song, Songwei Liu, Yingyi Wen, Yaoqiang Zhou, Yang Liu, Pengyu Liu, Wenyu Cui, Xin Lu, Teng Ma, Zegao Wang, Guohua Hu   +11 more
wiley   +1 more source