Results 1 to 10 of about 1,009,818 (331)

Routes of Aircraft Cabin Air Contamination from Engine Oil, Hydraulic and Deicing Fluid [PDF]

open access: yesINCAS Bulletin, 2022
Purpose: This paper discusses potential contamination of the air in passenger aircraft cabins. It gives an overview of cabin air contamination basics. It further names possible contamination sources and possible routes of contamination.
Dieter SCHOLZ
doaj   +1 more source

Research on a hydraulic manipulator arm of an automatic bottom laying robot for underground roadway in coal mine [PDF]

open access: yesITM Web of Conferences, 2022
This paper studies a robot with rapid bottoming technology that integrates the transportation, installation and removal of bottoming modules, and rapid road surface leveling.
Min Fusong, Zhai Zhengcheng, Jin Chao
doaj   +1 more source

Numerical Simulation of the Effect of Weir Magnification on Hydraulic and Hydrodynamic Characteristics in Diversion Dams [PDF]

open access: yesمحیط زیست و مهندسی آب, 2022
Since the geometry of duck tip overflows will complicate the problem for theoretical and practical purposes, it is crucial to study the magnification and hydraulic change of flow on these overflows.
Davoud Davoudmaghami   +2 more
doaj   +1 more source

Design, Manufacture, and Experimental Validation of a Hydraulic Semi-Active Knee Prosthesis

open access: yesIEEE Transactions on Neural Systems and Rehabilitation Engineering, 2023
In this article, a new hydraulic semi-active knee (HSAK) prosthesis is proposed. Compared with knee prostheses driven by hydraulic-mechanical coupling or electromechanical systems, we novelly combine independent active and passive hydraulic subsystems to
Zhennan Li   +5 more
doaj   +1 more source

Rolling-Sliding Performance of Radial and Offset Roller Followers in Hydraulic Drivetrains for Large Scale Applications: A Comparative Study

open access: yesMachines, 2023
Generally speaking, excessive side thrust and roller slippage are two different aspects affecting cam-roller mechanisms. In novel large-scale hydraulic drivetrains for offshore wind turbines, the highly dynamic nature of these mechanisms combined with ...
Pedro Amoroso   +2 more
doaj   +1 more source

Review and Analysis of the Reasons Delaying the Entry into Service of Power-by-Wire Actuators for High-Power Safety-Critical Applications

open access: yesActuators, 2021
This paper deals with safety-critical, high-power actuation in aerospace applications. Using a system-level synthetic view, it identifies, explains and discusses the reasons why electrically supplied, or power-by-wire, solutions have not spread rapidly ...
Jean-Charles Maré
doaj   +1 more source

Comprehensive Overview of Flood Modeling Approaches: A Review of Recent Advances

open access: yesHydrology, 2023
As one of nature’s most destructive calamities, floods cause fatalities, property destruction, and infrastructure damage, affecting millions of people worldwide. Due to its ability to accurately anticipate and successfully mitigate the effects of floods,
Vijendra Kumar   +4 more
doaj   +1 more source

Review of the Energy Saving Hydraulic System Based on Common Pressure Rail

open access: yesIEEE Access, 2017
Recently, much effort has been directed toward reducing the energy consumption of hydraulic systems against the backdrop of energy shortages and environmental problems.
Wei Shen   +3 more
doaj   +1 more source

Effect of Electrification on the Quantitative Reliability of an Offshore Crane Winch in Terms of Drive-Induced Torque Ripples [PDF]

open access: yesModeling, Identification and Control, 2023
Offshore crane winches are equipment installed on sea vessels and designed for accurate lifting and lowering of payloads at subsea levels in all conditions and are equipped with Active Heave Compensation (AHC) capabilities which keep the handled payload ...
Mohamed Yousri   +2 more
doaj   +1 more source

Parametric and Optimization Study of Rectangular-Rounded, Hydraulic, Elastomeric, Reciprocating Seals at Temperatures between −54 and +135 °C

open access: yesLubricants, 2018
Hydraulic, reciprocating, polymeric seals are met in many engineering applications and are critical components for mechanism and machine reliability in industries including the automotive, marine, and aerospace industries.
George K. Nikas
doaj   +1 more source

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