Results 311 to 320 of about 1,549,833 (399)
A novel lubricating method of oil pump with self-adaptive adjustment function for transmission. [PDF]
Sci RepCao Y, Liu D, Zhang P, Zhou H, Zhao S.
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 +4 more
wiley +1 more source
Multi-objective optimization of design parameters for tractor hydro-mechanical continuously variable transmissions. [PDF]
Sci RepZhu Z, Hou R, Zhang H, Wang D, Chen 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 +5 more
wiley +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
Deep Underground Science and Engineering, EarlyView.This paper presents an investigation of CO2 injection well damage evolution considering different injection temperatures and the presence of a pre‐existing defect. The main outcome is that the accurate prediction of well leakage risk requires characteristics such as initial defects to be understood and represented in any modeling efforts. Abstract This
Lee J. Hosking, Xiangming Zhou
wiley +1 more source
Research and application of bolter miner airborne drilling rig. [PDF]
Sci RepLiu Z, Li Z, Zou K, Xie C.
europepmc +1 more source
Data‐driven analysis of the spatial dependence of grouting efficiency during tunnel excavation
Deep Underground Science and Engineering, EarlyView.Prediction of grouting efficiency using machine learning is enhanced by adopting a training strategy that accounts for the grouting process across multiple rounds. Abstract Grouting with water–cement mixtures is the most widely used and cost‐effective method for managing excess water inflow during tunnel construction.
Huaxin Liu, Xunchang Fei, Wei Wu
wiley +1 more source
Amazon forest resistance to drought is increased by diversity in hydraulic traits. [PDF]
Nat CommunLangan L +3 more
europepmc +1 more source