One of the problems irrigation on agricultural land is lower position water sources. Pumps are needed to raise planting area. Water pumps that widely sold in market generally require electrical energy so their operation requires a source electricity and operational costs. Spiral pump wheels can be applied because this wheel utilizes flow without need for energy. The purpose article describe con...

From a physical perspective, nanofluidics represents an extremely rich domain. It hosts many mechanisms acting on the nanoscale, which combine together or interact with the confinement to generate new phenomena. Superfast flows in carbon nanotubes, nonlinear electrokinetic transport, slippage over smooth surfaces, nanobubble stability, etc. are the most striking phenomena that have been unveile...

Aiming at the issues of unreasonable cooperation schemes and inappropriate setting parameters refrigeration system with multi-chiller plants, this paper presents a cooperative optimization method to improve energy performance composed water-cooled chillers air-cooled heat pumps. The process includes scheme parameter optimization. To content dynamic cooling load, working sequence pumps variable ...

THE U.S. GOVERNMENT is a larger customer of IoT products than you may realize. Veterans Affairs, for example, buys connected IV pumps its hospitals, while the Environmental Protection Agency water sensors to measure pollution.

Irrigation is an important area of Bangladesh where most cases it depends on fossil fuels, either diesel-powered irrigation systems or grid electricity-operated systems. Solar alternative way to promote clean energy in the sector which line achieve Sustainable Development Goals (SDG). A business model essential for promotion Pumps (SIP), use water and electricity after may play a vital role mak...

This study identified the causes of insufficient emergency interconnected operation (EIO) performance, such as pressure-related problems and connection caused by elevation differences between blocks, characteristics locations interconnection pipes (EIPs), pumps. Then, it tested four strategies to improve EIO including increasing EIP diameter or installing additional EIPs, pressure reducing valv...

The reliability and efficiency of irrigation pumping stations operation primarily depends on the well-coordinated all systems. Drainage system should ensure that building territory station are not flooded by drainage (filtration) water. At many (especially those with long pressure lines), water jet pumps installed as for out experience operating such plants has revealed their undeniable advanta...

The management of a water distribution network (WDN) is performed by valve and pump control, to regulate both the pressure and the discharge between certain limits. The energy that is usually merely dissipated by valves can instead be converted and used to partially supply the pumping stations. Pumps used as turbines (PAT) can be used in order to both reduce pressure and recover energy, with pr...

Steady-state flow rates and exudate osmotic potentials were measured from complete root systems from warm- (28/23 C) or cold-(17/11 C) grown soybean or broccoli (Brassica oleracea) plants at various pressures or different temperatures.In warm-grown soybean roots systems, a break occurred at 14.7 C in the Arrhenius plot of total flow at constant pressure. When plants were grown at lower temperat...

conclusions high-level antibiotic resistance can occur as a result of multidrug efflux pumps combined with other mechanisms of resistance. however, the association between over-expression of these genes and highly resistant clinical isolates cannot be ignored. results our results confirmed 203 and 60 p. aeruginosa isolates from burn and non-burn specimens, respectively. the most antibiotic resi...