Results 51 to 60 of about 9,481,871 (303)

Research on the dynamic law of automatic following of hydraulic support

Gong-kuang zidonghua, 2023
Currently, research on the automatic following of hydraulic support in fully mechanized working faces focuses on controlling the movement of hydraulic support based on external environmental variables.
REN Huaiwei, ZHANG Shuai, XUE Guohua, ZHAO Shuji, ZHANG Yuliang, LI Jian   +5 more
doaj   +1 more source

Hydraulic support for dynamic testing Patent [PDF]

, 1967
Hydraulic support apparatus for dynamic testing of space vehicles under near-free flight ...
Vonpragenau, G. L.
core   +1 more source

Understanding bio‐based polymers: A study of origins, properties, biodegradation and their impact on health and the environment

FEBS Open Bio, EarlyView.
This review provides an overview of bio‐based polymer sources, their unique functional properties and their environmental impact, and addresses their role as sustainable alternatives. It discusses end‐of‐life options, including composting and anaerobic digestion for renewable energy.
Sabina Kolbl Repinc, Blaž Stres, Mirica Karlovits, Igor Karlovits, Petra Jerič, Ondrej Panák, Anja Verbič, Blaž Likozar, Uroš Novak   +8 more
wiley   +1 more source

Fault detection and diagnosis method for bus communication in hydraulic support electro-hydraulic control system

Gong-kuang zidonghua, 2023
The communication system is the channel and bridge for information transmission in the hydraulic support electro-hydraulic control system of the fully mechanized mining face. Currently, CAN bus is commonly used as the communication bus. It is susceptible
YANG Yongkai, ZHANG Minlong, XU Chunyu, SONG Jiancheng, TIAN Muqin, SONG Danyang, ZHANG Xiaohai, NIE Honglin   +7 more
doaj   +1 more source

Vibration dampener for Niles vertical boring mill ram [PDF]

, 1969
Controlled hydraulic cylinder, which serves as a vibration dampener, is used as a ram support unit.
Young, R. J.
core   +1 more source

Research on Attitude Analysis of Hydraulic Support Based on Column Length

Strojniški vestnik - Journal of Mechanical Engineering
The existing hydraulic support attitude monitoring and control methods integrate multiple sensing technologies, but it is difficult to apply and promote due to unclear monitoring mechanisms, complicated types, and a large number of sensors. Aiming at the
Mingfei Mu, Bowen Xie, Yang Yang
semanticscholar   +1 more source

Nuclear pore links Fob1‐dependent rDNA damage relocation to lifespan control

FEBS Open Bio, EarlyView.
Damaged rDNA accumulates at a specific perinuclear interface that couples nucleolar escape with nuclear envelope association. Nuclear pores at this site help inhibit Fob1‐induced rDNA instability. This spatial organization of damage handling supports a functional link between nuclear architecture, rDNA stability, and replicative lifespan in yeast.
Yamato Okada, Mina Iwaki, Kyosuke Hagiri, Rei Izumi, Masahiko Harata, Chihiro Horigome   +5 more
wiley   +1 more source

Design of machinery-tracked automatic system of hydraulic support

Gong-kuang zidonghua, 2013
In view of problem of low automatic degree of current electrohydraulic control system of hydraulic support, a machinery-tracked automatic system of hydraulic support was designed.
ZHU Jin-yu, LI Guo-lia
doaj   +1 more source

Study on Fracture Behavior of Directly Covered Thick Hard Roof Based on Bearing Capacity of Supports

Applied Sciences, 2023
Mine pressure at the working face is severe due to it being directly covered by a thick hard roof. To further investigate the technology of controlling the mine pressure of a thick hard roof, the upper working face of 13,121 in Gubei mine of Huainan ...
Jiawen Li, Baojie Fu, Hualei Zhang, Qingchong Zhao, Qingwei Bu   +4 more
doaj   +1 more source

Support apparatus for dynamic testing Patent [PDF]

, 1967
Hydraulic support equipment for full scale dynamic testing of large rocket vehicle under free flight ...
Angele, W., Vonpragenau, G. L.
core   +1 more source