Results 301 to 310 of about 1,534,066 (401)

An Investigation on the Ball Screw-Based Variable Displacement Mechanism for Axial Piston Pumps with Feedforward Differential Input Control. [PDF]

Sensors (Basel)
Zhang G, Wang B, Lin YJ.
europepmc   +1 more source

Pure-Hydraulic Hybrid Cylinder Drive System with Hydraulic Transformer

JFPS International Journal of Fluid Power System, 2012
Rikiya Inoguchi, Shigeru Ikeo, Kazuhisa Ito   +2 more
openaire   +3 more sources

Hotspots, trends, and regional focus on oil or gas exploration: A bibliometric comparative study

Deep Underground Science and Engineering, EarlyView.
This paper explores the research trends in global oil and gas exploration through the bibliometric analysis of 3460 articles collected from the Web of Science database on oil and gas exploration published from 2013 to 2023. The research hotspots, objects, regional distribution, methods, and evaluation methods of oil and gas exploration are analyzed and
Jihong Wang, Zhongkai Li, Jianguo Wang, Zhiqiang Li   +3 more
wiley   +1 more source

A Review of Wearable Back-Support Exoskeletons for Preventing Work-Related Musculoskeletal Disorders. [PDF]

Biomimetics (Basel)
Qu Y, Wang X, Tang X, Liu X, Hao Y, Zhang X, Liu H, Cheng X.   +7 more
europepmc   +1 more source

Elevated temperature effects on swelling pressure of compacted bentonite

Deep Underground Science and Engineering, EarlyView.
We present a set of new experimental investigations on the effects of elevated temperature on the swelling pressure development of compacted bentonite. This research was motivated by an emerging interest in using bentonite as a plug material in oil and gas well abandonment.
Linhua He, Majid Sedighi, Mojgan Hadi Mosleh, Andrey Jivkov, Jiangfeng Liu   +4 more
wiley   +1 more source

A seepage calculation method in geomaterials based on the novel improved DEM-FDM. [PDF]

Sci Rep
Tang X, Shi C, Hu C, Zhang L.
europepmc   +1 more source

Stress analysis of crack characteristic of anthracite under dynamic loading

Deep Underground Science and Engineering, EarlyView.
In this article, the dynamic compression test of anthracite under five strain rates is carried out, the evolution law of three kinds of crack characteristic stress is analyzed, and a prediction model of the crack characteristic stress threshold considering the strain rate effect is established. Then, the rationality of crack characteristic stress under
Yun Bai, Feng Gao, Ning Luo, Zhizhen Zhang, Yue Niu, Shanjie Su   +5 more
wiley   +1 more source

Research and experiment on a mobile welding robot for expandable convoluted pipe. [PDF]

Sci Rep
Yao S, Xue L, Huang J, Chen B, Zhang R, Han F.   +5 more
europepmc   +1 more source

Strain‐based modeling and analysis for rock blasting and geomechanics applications

Deep Underground Science and Engineering, EarlyView.
This paper introduces a novel strain‐based modeling approach for blasting and geomechanical applications, using measurable variables like particle velocity, strain, and displacement. By bypassing complex constitutive relations, strain‐based models capture critical blasting trends and full‐blast design parameters with minimal calibration.
Ruilin Yang
wiley   +1 more source

Climate-Induced Saltwater Intrusion in 2100: Recharge-Driven Severity, Sea Level-Driven Prevalence. [PDF]

Geophys Res Lett
Adams KH, Reager JT, Buzzanga BA, David CH, Sawyer AH, Hamlington BD.   +5 more
europepmc   +1 more source