Results 1 to 10 of about 541,532 (311)

Analysis of Concentration Polarisation in Full-Size Spiral Wound Reverse Osmosis Membranes Using Computational Fluid Dynamics

Membranes, 2021
A three-dimensional model for the simulation of concentration polarisation in a full-scale spiral wound reverse osmosis (RO) membrane element was developed.
Wenshu Wei, Xiang Zou, Xinxiang Ji, Rulin Zhou, Kangkang Zhao, Yuan Wang   +5 more
doaj   +1 more source

Regional contributions of climate change and human activities to altered flow of the Lancang-mekong river

Journal of Hydrology: Regional Studies, 2023
Study region: The Lancang-Mekong River (LMR) in Southeast Asia. Study focus: The LMR provides unparalleled economic and ecological resources for six Asian countries. However, the intensified impact of human activities, coupled with the effects of climate
Keer Zhang, Khosro Morovati, Fuqiang Tian, Le Yu, Bo Liu, Marcelo Alberto Olivares   +5 more
doaj   +1 more source

A comprehensive study of the maintaining mechanisms for hydrological cycle and ecological evolution and function in the northwest inland river basins of China

Shuiwen dizhi gongcheng dizhi, 2022
In recent decades, the hydrological cycle, ecology and environment of the inland river basins in northwest China have been significantly changed due to climate change and implementations of the ecological protection and water division projects.
Xi CHEN, Richao HUANG, Feng HUANG, Xiuqiang LIU, Yangyang ZHANG, Runrun ZHANG   +5 more
doaj   +1 more source

Stabilization of the Lower Jamuna River in Bangladesh—Hydraulic and Morphological Assessment

Geosciences, 2021
This paper presents a hydraulic and morphological analysis of the Lower Jamuna in Bangladesh with a focus on two key bifurcations that are important for stabilization of the Lower Jamuna reach.
Sanjay Giri, Angela Thompson, Gennady Donchyts, Knut Oberhagemann, Erik Mosselman, Jahangir Alam   +5 more
doaj   +1 more source

PREVENTION OF WATER INGRESS IN HYDRAULIC SYSTEMS [PDF]

Applied Engineering Letters, 2021
Industrial and mobile hydraulic systems are exposed to various environmental impacts. In order to achieve reliable operation and stable long-term use, we have to prevent ingress of different contaminants into hydraulic fluid and keep contamination ...
Samo Goljat, Vito Tič, Darko Lovrec
doaj   +1 more source

Self-Anti-Disturbance Control of a Hydraulic System Subjected to Variable Static Loads

Applied Sciences, 2022
A hydraulic system’s lubricating oil is subject to serialized variable static loads with performance. An improved self-turbulent flow algorithm, based on the real-time acquisition and monitoring of lubricating oil static pressure in a hydraulic system to
Xigui Wang, Jian Zhang, Yongmei Wang, Chen Li   +3 more
doaj   +1 more source

Optimization of the Load Capacity System of Powered Roof Support: A Review

Energies, 2022
Powered roof support is equipped with a hydraulic control system to ensure its required load capacity. The main problem arising from powered roof support during exploitation is providing the necessary load capacity.
Dawid Szurgacz, Beata Borska, Sergey Zhironkin, Ryszard Diederichs, Anthony J. S. Spearing   +4 more
doaj   +1 more source

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

, 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., Kiselychnyk, Oleh, Pushkar, M. V., Reshetnik, V. S., Zemlianukhina, H. Y.   +4 more
core   +1 more source

Analysis and Optimization of Hydraulic Calibration for Maximum Performance of Wastewater Treatment Plants [PDF]

E3S Web of Conferences
The hydraulic calibration of treatment units in wastewater treatment plants is a crucial task. It involves demonstrating the relative placement of these various units in relation to the water line that traverses the plant, and helps indicate the ground ...
Qabbou Nour-eddine, Khomsi Driss, Hassani Naoual Semlali Aouragh   +2 more
doaj   +1 more source

Effects of Plastic Mulch on Soil Heat Flux and Energy Balance in a Cotton Field in Northwest China

Atmosphere, 2016
Surface energy balance (SEB) is a basic principle for all of the atmospheric circulation models, and surface soil heat flux (G0) is an important component of energy balance.
Nana Li, Fuqiang Tian, Hongchang Hu, Hui Lu, Guanghui Ming   +4 more
doaj   +1 more source