Results 41 to 50 of about 274 (162)

Co‐Evolution of Specific Stiffness and Permeability of Rock Fractures Offset in Shear

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 5, May 2025.
Abstract Fractures and faults represent planes of weakness and compliance in rock masses that serve as focal points for both microearthquakes and fluid transport, with seismicity and permeability evolution closely linked. Contact stiffness is highly stress‐sensitive and directly influences permeability. We explore the co‐evolution of specific stiffness
Xinxin He, Pengliang Yu, Agathe Eijsink, Chris Marone, Parisa Shokouhi, Jacques Rivière, Shimin Liu, Derek Elsworth   +7 more
wiley   +1 more source

THE ORGANIZATION OF EFFICIENT SYSTEM OF MAINTENANCE OF LOCOMOTIVES SERIES TGM4 ON THE EXAMPLE OF JSC "METALLURGICAL PLANT "ZAPORIZHSTAL"

Nauka ta progres transportu, 2008
The purpose of work is determination of the rational system of maintenance of the hydromechanical transmission of diesel locomotives of a series ТГМ4 for the beforehand set reliability of locomotive fleet with minimum expenses of funds and labour ...
M. I. Kapitsa
doaj  

Multi‐Frequency Oscillatory Hydraulic Tomography Improves Heterogeneity Imaging and Resolution and Reduces Uncertainty

Water Resources Research, Volume 61, Issue 5, May 2025.
Abstract Understanding subsurface heterogeneity is crucial to predicting groundwater flow pathways, mixing, and other processes in aquifers and other fluid reservoirs. Despite significant effort developing geophysical tools to understand this heterogeneity, geophysical mapping of aquifer flow parameters—transmissivity (T) $(T)$, and storativity (S) $(S)
Jeremy R. Patterson, Michael Cardiff
wiley   +1 more source

Modular Design of Hydromechanical Transmissions for Mobile Working Machines [PDF]

Linköping Electronic Conference Proceedings, 2013
This paper demonstrates an optimisation-based method to design modular gearboxes scalable for a range of applications.
Karl Pettersson, Petter Krus
openaire   +1 more source

The Effect of Hydrothermal Alteration and Microcracks on Hydraulic Properties and Poroelastic Deformation: A Case Study of the Blue Mountain Geothermal Field

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 4, April 2025.
Abstract Geothermal energy plays a vital role in decarbonizing electricity and heat supply. Effective utilization of geothermal resources hinges on identifying or generating permeable reservoir zones and understanding how effective pressure variations affect fluid circulation and reservoir properties by poroelastic deformation.
Valerian Schuster, Erik Rybacki, Anja M. Schleicher, Roshan Koirala, Thomas H. W. Göbel   +4 more
wiley   +1 more source

Design Methodology for Spiral-Bevel Gears of the Main Transmission of Heavy-Duty Mining Dump Trucks

Механика машин, механизмов и материалов
The paper presents a methodology for designing large-module spiral-bevel gears of the main transmission of mining dump trucks, which differs from the known ones by recommendations for optimization of gear ratios in general for the transmission and the ...
Siarhei A. Shyshko, Nikolay N. Ishin, Arkadiy M. Goman, Marina K. Naturjeva   +3 more
doaj   +1 more source

Dynamic Characteristic Analysis and Clutch Engagement Test of HMCVT in the High-Power Tractor

Complexity, 2021
Hydromechanical continuously variable transmission (HMCVT) is capable of bearing large torque and has wide transmission range, which is suitable for high-power tractors. Dynamic characteristics could influence the tractor life, especially in a high-power
Yuan Chen, Yu Qian, Zhixiong Lu, Shuang Zhou, Maohua Xiao, Petr Bartos, Yeping Xiong, Guanghu Jin, Wei Zhang   +8 more
doaj   +1 more source

Control Mechanisms for Self‐Sealing in Activated Clay‐Rich Faults Through Controlled Hydraulic Injection Experiment

Water Resources Research, Volume 61, Issue 4, April 2025.
Abstract In a high‐pressure injection fault activation experiment conducted at the Mont Terri underground research laboratory in Switzerland, the transmissivity of the Opalinus Clay fault significantly increased due to opening and shearing. The fluid injection, spanning a few hours, generated a 10 m radius fault activation patch.
Yves Guglielmi, Frédéric Cappa, Tanner Shadoan, Jonathan Ajo‐Franklin, Florian Soom, Bill Lanyon, Paul Cook, Chet Hopp, Verónica Rodríguez Tribaldos, Michelle Robertson, Todd Wood, Craig Ulrich, Senecio Schefer, Christophe Nussbaum, Jens Birkholzer   +14 more
wiley   +1 more source

Unified Hydraulic System of Automatic Control and Life Support for the Family Prospective Hydromechanical Transmission MWTP

Механика машин, механизмов и материалов, 2011
In the paper considered the schematic circuit, operating principle and arrangement of components assemblies and mechanisms unified hydraulic control system and life support for the family prospective hydromechanical transmission MWTP.
Yu.I. Nikolaev , S.N. Poddubko , A.A. Mackiewicz , S.G. Staskevich , Yu.E. Pavlov   +4 more
doaj  

An Experimental Approach for the Quantitative Assessment of Downstream Swimming Fish Behavior

River Research and Applications, Volume 41, Issue 2, Page 499-514, February 2025.
ABSTRACT Behavior of fish influences the mortality risk during turbine and pump passages. Knowledge about species‐specific behavior and its triggers is necessary for improving numerical models and the development of autonomous sensor probes to estimate fish mortality in turbines and pumps.
Márcio S. Roth, Falko Wagner, Tom Roessger, Ianina Kopecki, Dennis Powalla, Juergen Stamm   +5 more
wiley   +1 more source