Results 81 to 90 of about 51,710 (183)

Intelligence Mining with Electro-Hydraulic Control Technology

, 2011
The underlying way to reduce accidents is reducing the number of workers on the coal face. Automatic mining can realize this object. The key for unmanned automatic mining is the application of electro-hydraulic control technology used on workface support.
Yong Yi Liu, Yang Zhao, Ming Xin Lu, Ming Feng Lv, Min Li, Ju Guang Wang, Jie Zhao, Jing Wang   +7 more
core   +1 more source

Evaluation of prestress losses in concrete beams using destructive and non‐destructive methods

Structural Concrete, EarlyView.
Abstract Over the past few decades, prestressing techniques have become essential in the construction of key structures, infrastructure, and bridges. The serviceability and safety of prestressed concrete (PC) elements are closely tied to the effectiveness of the prestressing process.
A. N. Consiglio, G. Muciaccia, G. Rosati
wiley   +1 more source

Stable Switching Control Strategy of the Support Pressure and Velocity of Shield Machine Gripper Shoes

Shock and Vibration, 2019
An electro-hydraulic servo position and pressure compound control method was investigated considering the working principle of a hydraulic stepping motor of a shield machine gripper shoe and its practical working characteristics in the supporting process.
Nannan Liu, Jishen Peng, Liye Song, Pinhe Wang, Kun Zhang   +4 more
doaj   +1 more source

Behavior of manufactured sand and recycled coarse aggregate concrete‐filled steel tubular stub columns with circular section

Structural Concrete, EarlyView.
Abstract Accelerated urbanization has intensified environmental concerns due to excessive natural resource consumption and construction waste generation. Circular concrete‐filled steel tube (CFST) columns incorporating manufactured sand recycled coarse aggregate (MS‐RCA) concrete have emerged as an innovative composite element offering notable ...
Minsheng Guan, Qi Chen, Gang Wang, Aiguo Xiong, Ying Wang, Le Li, Anne W. M. Ng, Qing Quan Liang   +7 more
wiley   +1 more source

Position Control Mathematical Modelling and Operational Evaluation of Tele-operated Electro-hydraulic Actuator (T-EHA) [PDF]

, 2020
. This study deals with a master-slave system for a tele-operated electro-hydraulic actuator (T-EHA) that focuses on a hydraulic system to remotely control a mini excavator.
Mohd Khairi, Mohamed Nor, Ibrahim, Abdul Manaf, Muhammad Zaidan, Mohd Noor, Ahmad Anas Yusof, Asril Saadun, Mohd Qadafie   +8 more
core   +1 more source

Development and application of adjustable electro-hydraulic actuator

You-qi chuyun, 2020
In view of the current situation that adjustable electro-hydraulic actuators for pipeline depend on import, effortshave been made to the localization of adjustable electro-hydraulic actuator to guarantee the safety of national energy, toimprove the ...
Xiliang YANG, Yunfeng SUN, Xiaozheng YANG, Xiguang GAO, Liwen ZHANG, Xiaolong REN, Qingjun YANG   +6 more
doaj   +1 more source

800 kV Fast Circuit Breaker: Mechanical Coupling Modelling, Buffer Design and Development

High Voltage, EarlyView.
ABSTRACT The 800 kV fast circuit breaker (CB) used in ultra‐high voltage (UHV) converter transformer can reduce the total breaking time to 25 ms. It significantly improves the action speed and breaking capacity of the CB, with promising broad application prospects.
Enyuan Dong, Sheng Yin, Yu Tian, Liyan Zhang, Ruilei Gong, Kejia Xie, Zhibing Li   +6 more
wiley   +1 more source

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

Experimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

Optimum analysis of inclined angle of mixing blades in planetary mixer based on discrete element method

Advances in Mechanical Engineering
Based on production practice, it is known that the mixing scraper is an important mechanical part that the planetary mixer directly contacts with the concrete.
Wenmin Lu, Shumei Chen, Jinan Zheng, Xinyuan Fu, Guohua Fu, Jia Zhong, Qingyang Li, Zhuangbin Zhen   +7 more
doaj   +1 more source

Smart Closed‐Loop Systems in Personalized Healthcare: Advances and Outlook

Advanced Materials Technologies, Volume 11, Issue 12, 18 June 2026.
A smart closed‐loop e‐textile integrates multimodal sensing, onboard processing, wireless communication, and wearable power to enable real‐time physiological/biochemical monitoring and feedback‐controlled therapy. ABSTRACT Smart textiles represent a revolutionary frontier in healthcare, seamlessly blending fabric and advanced technologies to create ...
Safoora Khosravi, Sang Won Lee, Mohammad Abrar Uddin, Sina Hassanpoor, Neha Suvindran, Katherine Le, Harun Arkaz, Harishkumar Narayana, Saeid Soltanian, Danial Khorsandi, Negar Hosseinzadeh Kouchehbaghi, Taeil Kim, Yangzhi Zhu   +12 more
wiley   +1 more source