Results 71 to 80 of about 5,533,129 (233)

Performance improvement of underwater jet pump by optimal arrangement of primary jet stream

open access: yesJournal of Fluid Science and Technology, 2018
In recent years, as a new application technology of jet pumps, attention is paid to a method of installing a jet pump at the bottom of a contaminated lake or a river to remove pollutants and promote purification. The large flow rate that can be generated
Shendan ZHAO, Shunichi SAKURAGI
doaj   +1 more source

Inductively Expandable Supraparticles as Microscopic Force Generators for Remote Mechanical Actuation

open access: yesAdvanced Materials, EarlyView.
This study demonstrates the combination of magnetic nanoparticles and functional blowing agents into supraparticles. Upon induction heating, they actuate via rapid gas generation or extensive volume expansion. These supraparticles lift up to 25 000 times their own mass and rapidly open cured epoxy resins, providing a versatile strategy for fast micron ...
Leoni Luthardt   +3 more
wiley   +1 more source

Study on structural response and flow-induced noise characteristics of a composite rotor pump-jet propulsor

open access: yesZhongguo Jianchuan Yanjiu
ObjectiveComposite materials offer advantages such as low weight, corrosion resistance and a high damping ratio. To enhance the overall performance of underwater vehicles, this study investigates the characteristics of a composite rotor pump-jet ...
Bo LU   +5 more
doaj   +1 more source

HYDRAULIC ELEVATOR INSTALLATION ESTIMATION FOR THE WATER SOURCE WELL SAND-PACK CLEANING UP

open access: yesИзвестия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2016
The article offers design of a hydraulic elevator installation for cleaning up water-source wells of sand packs. It considerers the installation hydraulic circuit according to which the normal pump feeds the high-level tank water into the borehole ...
V. V. Ivashechkin
doaj   +1 more source

Smart Electrospun Nanofibers for Controlled Oil‐Water Separation

open access: yesAdvanced Materials Interfaces, EarlyView.
Stimuli‐responsive electrospun nanofibers are reviewed as advanced platforms for controlled oil/water separation. The effects of surface wettability, porous structure, and external stimuli, including pH, temperature, gas, and light, on separation performance are discussed.
Aynaz Sedaghatnia   +6 more
wiley   +1 more source

Development of High Efficiency Carbon Dioxide Commercial Heat Pump Water Heater [PDF]

open access: yes, 2012
Although heat pump water heaters are today widely accepted in both Japan and Europe, where energy costs are high and government incentives for their use exist, acceptance of such products in the US has been limited.
Elbel, Stefan   +3 more
core   +1 more source

Upscaling Pulsed Laser Fragmentation in Liquids by Advanced Free‐Flow Setups

open access: yesAdvanced Materials Technologies, EarlyView.
Advanced flow setups providing thin colloid films are introduced to upscale pulsed laser fragmentation in liquids for sustainable nanoparticle synthesis. Their potential is demonstrated by yielding remarkably small ZnO nanoparticles of <7 nm. Numerical simulations complement the study, revealing that the superior performance can be attributed to ...
Jan Lino Kricke   +5 more
wiley   +1 more source

HIGH SPEED PUMP: MECHANICAL SEAL BAD ACTOR RESOLUTION [PDF]

open access: yes, 2022
Case StudiesCase study include a vertical pump in sour water service running at high speed of 17200rpm. Pump originally equipped with single seal & Plan 21 configuration since day one.
Faiz, Ahmad
core   +1 more source

Strategy for resuming production of tight gas reservoirs in Qingshimao: jet pump-rod pump integrated drainage gas recovery process

open access: yesJournal of Petroleum Exploration and Production Technology
In the development of the tight gas reservoir in Qingshimao, the depth of gas well and high production of water often lead to difficulty in discharging the accumulated liquid bottomhole and a short stable production period after drainage gas recovery ...
Wanzhong Li   +4 more
doaj   +1 more source

Experimental Investigation on the Material Removal of the Ultrasonic Vibration Assisted Abrasive Water Jet Machining Ceramics

open access: yesAdvances in Materials Science and Engineering, 2017
The ultrasonic vibration activated in the abrasive water jet nozzle is used to enhance the capability of the abrasive water jet machinery. The experiment devices of the ultrasonic vibration assisted abrasive water jet are established; they are composed ...
Tao Wang, Rongguo Hou, Zhe Lv
doaj   +1 more source

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