Results 21 to 30 of about 432,204 (313)

Bio-Inspired New Hydraulic Actuator Imitating the Human Muscles for Mobile Robots

open access: yesFrontiers in Bioengineering and Biotechnology, 2022
Limited load capacity is the bottleneck for the practical application of mobile multi-joint legged robots. And improving the efficiency of the drive system is a key factor in improving the load capacity.
Xiangjuan Bai   +5 more
doaj   +1 more source

Influence of a Modified Weir Profile on Velocity Field and Dissipation Rate in Stepped Spillways: A Comparative Study Using Physical Models and Computational Fluid Dynamics [PDF]

open access: yesJournal of Applied Fluid Mechanics
Stepped spillways are specialized hydraulic structures crafted to optimize the effective dissipation of hydraulic energy along stepped chutes. The central objective is to scrutinize and improve the mitigation of flow separation occurring from the ogee ...
H. Souli, J. Ahattab, S. Bensallam
doaj   +1 more source

The current state of district heating processes in China and directions for the development of the methodological and instrumental base to support them [PDF]

open access: yesE3S Web of Conferences, 2023
The article assesses the current state of district heating systems covering more than 100 cities in northern China. The main features of such systems, as well as the problems that arise during their design and operation, are disclosed.
Alekseev Aleksandr   +3 more
doaj   +1 more source

Energy-efficient control of pump units based on neural-network parameter observer [PDF]

open access: yes, 2020
An observer based on an artificial neural network was designed. The observer determines the pumping unit performance depending on the operating point. Determination is based on the measured technological coordinates of the system and the pressure of the ...
Burian, S. O.   +4 more
core   +1 more source

A New Method for Fault Diagnosis of Hydraulic System Based on Improved Empirical Wavelet Transform and Kernel Extreme Learning Machine

open access: yesIEEE Access, 2023
To address the problem that multivariable faults in hydraulic systems are difficult to diagnose accurately in a short time, a new signal processing method combining an improved empirical wavelet transform with a kernel extreme learning machine optimized ...
Chao Chen, Muhetaer Kelimu, Bo Yang
doaj   +1 more source

Systemic knowledge management in hydraulic systems: II. Application to hydraulic systems [PDF]

open access: yesJournal of Hydroinformatics, 2003
‘Systemic knowledge management’, presented in Paper I as a problem-solving methodology, is applied to hydraulic systems here in Paper II. The generic context of hydraulic systems is interrelated to a body of similar developments in science and technology through the concept of paradigms. The systemic component of this problem-solving method integrates ‘
openaire   +1 more source

Seat-integrated Personalized Ventilation Diffuser for Improving Air Quality Aboard Commercial Aircraft [PDF]

open access: yesE3S Web of Conferences
Current commercial aircraft ventilation design focuses on space optimization and pressure-related safety parameters. It inadequately takes into account the impact of the mixing ventilation system on pathogen dispersion in an enclosed space with low ...
Georgescu Matei-Razvan   +4 more
doaj   +1 more source

Mathematical modelling of branched hydraulic systems [PDF]

open access: yesКомпьютерные исследования и моделирование, 2009
Solving the problem of stationary stream distribution for an arbitrary volume-free hydrosystem with a free level can be reduced to determining the extremes of a multi-variable function.
N. V. Kassina, L. V. Smirnov
doaj   +1 more source

Multiobjective optimization of water distribution systems accounting for economic cost, hydraulic reliability, and greenhouse gas emissions [PDF]

open access: yes, 2013
In this paper, three objectives are considered for the optimization of water distribution systems (WDSs): the traditional objectives of minimizing economic cost and maximizing hydraulic reliability and the recently proposed objective of minimizing ...
Angus R. Simpson   +37 more
core   +1 more source

Fault Classification for Cooling System of Hydraulic Machinery Using AI

open access: yesSensors, 2023
Hydraulic systems are used in all kinds of industries. Mills, manufacturing, robotics, and Ports require the use of Hydraulic Equipment. Many industries prefer to use hydraulic systems due to their numerous advantages over electrical and mechanical ...
Haseeb Ahmed Khan   +5 more
doaj   +1 more source

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