Results 81 to 90 of about 1,059,729 (291)

Comprehensive performance comparison and applicability analysis of bidirectional flow passage pump device based on hub ratio under multi-operating conditions

open access: yesPhysics Open
To investigate the applicability of modified pump unit designs in actual pumping station projects, this study employs a combined approach of numerical simulation and model testing.
Yi Yang   +7 more
doaj   +1 more source

Comparison of leakage level in water and oil hydraulics

open access: yesAdvances in Mechanical Engineering, 2017
The objective of this research was an in-depth analysis of energy losses in hydraulic systems. Energy losses were analysed on the basis of the leakage in the annular gap between the spool of hydraulic directional control valves and the hole channel.
Ervin Strmčnik, Franc Majdič
doaj   +1 more source

Optimum pressure distributions of hydraulic cylinder seals

open access: yes, 1981
The paper describes a project dealing with the problem of minimizing power losses in hydraulic components with elastic seal elements. Piston seals and piston rod seals of a hydraulic cylinder with a moving cylinder tube are analyzed.
Johannesson, Hans L.,
core  

From Lab to Landscape: Environmental Biohybrid Robotics for Ecological Futures

open access: yesAdvanced Robotics Research, EarlyView.
This Perspective explores environmental biohybrid robotics, integrating living tissues, microorganisms, and insects for operation in real‐world ecosystems. It traces the leap from laboratory experiments to forests, wetlands, and urban environments and discusses key challenges, development pathways, and opportunities for ecological monitoring and ...
Miriam Filippi
wiley   +1 more source

Editorial: Design, simulation and optimization of hydraulic machinery

open access: yesFrontiers in Energy Research, 2022
Ling Zhou   +3 more
doaj   +1 more source

Automated calculation of pressure losses in volumetric hydraulic drive

open access: yesВестник СибАДИ, 2017
Computer aided design is the process by which all or part of the design solutions obtained using computer technology. One of the main model of computer aided design problems is to calculate or univariate analysis.
I. M. Murseev, Y. I. Privalovа
doaj   +1 more source

Intelligent Micro/Nanorobots for Targeted Interventional Therapy: From Bench to Clinic

open access: yesAdvanced Robotics Research, EarlyView.
Zirui Zhang et al. reviewed the application and challenges of mobile nanomachines in interventional therapy. By converting exogenous energy, including chemical, magnetic, optical, and ultrasonic sources, into mechanical forces, micro/nanorobots (MNRs) enable precise actuation at unprecedented scales. Evolving far beyond traditional drug delivery, these
Zirui Zhang   +5 more
wiley   +1 more source

Iron‐Mediated Release of Aged Dissolved Organic Carbon From Waterlogged Peatland Under Warming

open access: yesAdvanced Science, EarlyView.
This study conducts a five‐year in situ warming experiment in high‐altitude peatlands to examine dissolved organic carbon (DOC) release. The study shows that warming promotes the release of plant‐derived modern DOC in drained peatlands, but amplifies aquatic export of century‐old DOC from waterlogged peatlands via Fe‐mediated DOC mobilization—a ...
Guohua Dai   +18 more
wiley   +1 more source

Comparative Analysis of Power Losses in the Single-Flow LS-Systems with Pump and Valve Configuration

open access: yesМеханика машин, механизмов и материалов, 2018
The power losses in the single-flow hydraulic LS-systems with a pump configuration (using the variable displacement LS-pump) and with a valve configuration (using the fixed displacement pump) are investigated.
Aleksander A. Hinzburh   +1 more
doaj  

Reduction of hydraulic losses in a piston pump

open access: yes, 2020
The hydraulic losses are the decrease in energy of the fluid due to vortex formation, friction between the fluid and the pipe, changing the flow of fluid. The decrease in energy of the fluid, in turn, leads to the following consequences: decrease efficiency, increase energy consumption and decrease cavitation stock pump.
Kulikov, O., Kozachenko, J.
openaire   +1 more source

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