The paper analyses the effect of electrohydrodynamic (EHD) pumping on the control of natural circulation loops (NCLs). The two major objectives of the investigation are: finding the optimal configuration of an EHD pump and demonstrating that the NCL flow direction can be inverted by exploiting the EHD phenomena. In the initial experimental set-up, we measured the static pressure rise given by a...

Purpose: to determine the possible degree of mixing livestock effluents and water for various hydraulic parameters elements installed equipment pipeline network. Materials methods. The research was carried out at pumping station irrigation system “Rassvet” LLC Kuibyshev district Rostov region. diagrams show stations with positive negative suction heads possibility universal use obtained regardl...

The European eel (Anguilla anguilla (L.)) is critically endangered after a multi-decadal decline. Anthropogenic disruption to downstream migration, including at water control structures such as pumping stations, thought be one of the contributing factors. Some stations only operate during floods and river drains through sluice gates under influence gravity (‘gravity sluice’ hereafter) all other...

W I T H T H E E N A C T M E N T in October of amendments to the Massachusetts law, the main State legislative ac t iv i ty of 1941 affecting unemployment compensation came to an end. D u r i n g the year the legislatures of 4 3 States and the Territories of Alaska and Hawai i , meeting in regular sessions, revised their unemployment compensation laws in some respect, and the United States Congr...

Groundwater microbial community samples are traditionally collected using pumping techniques optimized for groundwater chemistry assessment although the impact of groundwater pumping parameters on apparent bacterial community structures (BCS) is not really known. We therefore studied the impact of pumping lift, flow regime and tubing material on BCS, which were analyzed by terminal-restriction ...

the modulation response, relative intensity noise and frequency noise characteristics of qd lasers are investigated theoretically, in presence of an additional optical pumping. it is revealed that the modulation response of qd laser enhances under additional optical beam. by small signal analysis of the carriers' and photons' rates, it is proposed that by injecting excess carriers to ...

The world is continuously searching for ways to improve how water used energy. As the population increases, so do needs natural resources and, in turn, This research sought show has tried achieve more sustainable forms of pressurized distribution and results that have been obtained. In this sense, technologies production clean energy, energy recovery instead dissipation, reprogramming pumping s...

Saltwater intrusion and upconing phenomena affect coastal aquifers worldwide. Over-exploitation leads to high salinity levels which threaten sustainable use of these freshwater resources. There is an increasing need to accurately, and practically, model the physics of these coastal pumping systems while also incorporating the relevant economics. We formalize a decision model able to define the ...