Results 21 to 30 of about 13,578 (224)

Modeling on Actuation Behavior of Macro-Fiber Composite Laminated Structures Based on Sinusoidal Shear Deformation Theory

Applied Sciences, 2019
A new piezoelectric composite, macro fiber composite (MFC) is recombined with piezoceramic fibers, an epoxy resin basal body, and an interdigitated electrode.
Jiarui Zhang, Jianwei Tu, Zhao Li, Kui Gao, Hua Xie   +4 more
doaj   +1 more source

Federal Protections for Farmworker Health in the United States: A Scoping Review of Three Decades of Research

American Journal of Industrial Medicine, EarlyView.
ABSTRACT Objectives This scoping review characterizes the scope, methods, and framing of empirical research evaluating the Field Sanitation Standard (FSS) and Worker Protection Standard (WPS) of the U.S. Environmental Protection Agency and the U.S. Department of Labor respectively.
Kaitlyn Alvarez Noli, Stephane Labossiere, Becca Berkey, Joseph G. Grzywacz   +3 more
wiley   +1 more source

Evaluation of Grouting Repair Effectiveness of Void-Damaged Cement Stabilized Macadam Using Four Multi-Source Characterization Techniques

Buildings
Cement stabilized macadam (CSM) bases are prone to cracking and void damage under long-term traffic loading and environmental actions, which accelerates structural deterioration.
Shiao Yan, Chunkai Sheng, Zhou Zhou, Xing Hu, Xinyuan Cao, Qiao Dong   +5 more
doaj   +1 more source

Experimental Research on Bond Behavior between GFRP Bars and Stirrups-Confined Concrete

Applied Sciences, 2019
This paper presents the results of a series of pullout tests that were performed on Glass-fiber-reinforced polymer (GFRP) bars embedded in concrete, while providing a detailed report on the influence of various variables that impinge upon bond behavior ...
Kui Gao, Zhao Li, Jiarui Zhang, Jianwei Tu, Xinping Li   +4 more
doaj   +1 more source

Study on Deformation and Failure Laws of Surrounding Rock in Layered Rock Roadway by Discrete Element Method

Meikuang Anquan, 2020
In order to study the deformation and failure laws of roadway surrounding rock under the condition of layered rock, the one orbit lane of Shandong Yuncheng Coal Mine was taken as the research background, and PFC2D discrete element software was adopted ...
WANG Huifeng, SONG Libing
doaj   +1 more source

Clinical neuroanatomy teaching at Peking University Health Science Center: Evolution, current practice, and future direction

Anatomical Sciences Education, EarlyView.
Abstract Neuroanatomy has been considered one of the most challenging subjects in medical education, often leading to “neurophobia” and discouraging students from pursuing neurological specialties. At PKUHSC, the curriculum has evolved from a traditional, discipline‐based model to a technology‐enhanced, integrated “Nervous System” module for ...
Xuan Fang, Man Li, Xiaodan Hu, Chang Su, Shan Ye, Xianzhong Shi, Xiaomei Yang, Changman Zhou, Weiguang Zhang, Chunhua Chen   +9 more
wiley   +1 more source

A Collaborative Control Framework: Achieving Emergency Vehicle Priority While Minimizing Negative Impact on Ordinary Vehicles at Signalized Intersection

Journal of Advanced Transportation
When an emergency vehicle (EV) passes through an isolated signal intersection, it is crucial to ensure the efficient passage of the EV while minimizing the negative impact on ordinary vehicles (OVs), particularly in high-traffic flow scenarios. Given the
Ke-jun Long, Zhong-gen Zhang, Zhi-bo Gao, Si-qi Zhong, Jian Gu   +4 more
doaj   +1 more source

Mechanism and prevention measures of asymmetric floor heave in mining roadway of Huipodi Coal Mine

矿业科学学报, 2020
Taking Huipodi coal mine as the engineering background, the asymmetric deformation mechanism of the mining roadway under the island coal pillar was studied by theoretical analysis, numerical simulation and field measurement, and the corresponding floor ...
Zhao Hongbao, Liu Yihong, Cheng Hui, Li Jinyu, Xu Jianfeng, Wang Yikuo   +5 more
doaj   +1 more source

Shear behavior of bolt–grout interfaces under constant normal stiffness: Influence of grout strength and thickness

Deep Underground Science and Engineering, EarlyView.
The effects of grout strength and thickness on the shear behavior of bolt–grout interfaces (BGI) under constant normal stiffness conditions are investigated. Shear strength, failure modes, and acoustic emission characteristics are examined. The findings reveal that grout strength exerts a significantly greater influence on BGI shear strength and ...
Sunhao Zhang, Dongqi Shang, Yujing Jiang, Jinge Zhang, Hongbin Chen, Tianqi Jiang   +5 more
wiley   +1 more source

Real‐time lithology identification while drilling based on drill cuttings image analysis with ensemble learning

Deep Underground Science and Engineering, EarlyView.
A lithology identification while drilling method was developed, integrating an automated cuttings sampling system, a smart drilling rig, and an ensemble learning model. Underground trials achieved 97.42% accuracy in real‐time identification of cuttings lithology and composition, enhancing hazard management and supporting unmanned drilling technology in
Kun Li, Ting Ren, Ningping Yao, Jon Roberts, Haitao Song, Zhongbei Li, Xueqiu He, Liang Zhao   +7 more
wiley   +1 more source