Results 121 to 130 of about 54,946 (273)
Zero gravity liquid mixer [PDF]
, 1973 An apparatus for mixing liquids under conditions of zero gravity is disclosed. The apparatus is comprised of a closed reservoir for the liquids, with a means for maintaining a positive pressure on the liquids in the reservoir. A valved liquid supply line
Booth, F. W., Bruce, R. A.
core +1 more source
Macromolecular Rapid Communications, EarlyView.We employ freeform printing of thermo‐responsive poly(2‐oxazoline) to directly fabricate suspended sacrificial vascular templates within Organ‐on‐a‐chip devices. This enables circular, perfusable channels down to 200 µm without post‐processing.
Giulia Maria Di Gravina +7 more
wiley +1 more source
Optimization study of low lateral force in eccentric ball-piston pumps
Advances in Mechanical EngineeringEccentric ball piston pump is a high power density hydraulic component. In this paper, a low lateral force design method for an eccentric ball-piston pump is proposed to reduce the lateral force between the ball and the cylinder by slightly inclination ...
JiaHao Wu +3 more
doaj +1 more source
Research on Rotor Dynamic Characteristics of High Speed Aviation Piston Pump
LubricantsThe high-speed aviation piston pump plays a vital role in hydraulic systems in the aviation field. Extremely complex force situations happen during running operations due to the coupling between multiple components, as a result of the overall dynamic ...
Lijun Chen +5 more
doaj +1 more source
Variable Displacement Control of the Concrete Pumping System Based on Dynamic Programming
MATEC Web of Conferences, 2017 To solve the problems of cylinder piston striking cylinder and the hydraulic shocking of the main pump, and causing energy waste problem, the method of variable displacement control of piston stroke was proposed.
Ye Min, Qin Limin
doaj +1 more source
Overview of NASA Lewis Research Center free-piston Stirling engine technology activities applicable to space power systems [PDF]
, 1987 Free piston Stirling technology is applicable for both solar and nuclear powered systems. As such, the Lewis Research Center serves as the project office to manage the newly initiated SP-100 Advanced Technology Program.
Slaby, J. G.
core +1 more source
Hierarchically Porous Coatings for Cellulose Fibers by Core–Shell Particle Templating
Macromolecular Rapid Communications, EarlyView.Hybrid and functional core–shell particles comprising a silica core and a polymer shell were synthesized and used to develop a coating and etching process applied to a cellulose substrate. This resulted in highly porous, functional coatings on a cellulose membrane for further application in cellulose‐based adsorbers and advanced membrane technology ...
Regina Leiner +5 more
wiley +1 more source
Meitan kexue jishuExpanding the speed range of high water-based piston pump is beneficial to the wide intelligent control of liquid supply system in fully mechanized coal mine.
Hao JIANG, Lang YU, Yongkang LI
doaj +1 more source
Polymer International, EarlyView.An overview and categorization of man‐made per‐ or polyfluoroalkyl substances (PFASs) including low‐molar‐mass and high‐molar‐mass fluorochemicals, and their international regulations is presented. Though certain PFASs are toxic, bioaccumulative and cross the human cellular membranes, others, such as fluoropolymers, are safe, reliable and involved in ...
Bruno Améduri
wiley +1 more source
Piston-assisted charge pumping
, 2015 We examine charge transport through a system of three sites connected in series in the situation when an oscillating charged piston modulates the energy of the middle site. We show that with an appropriate set of parameters, charge can be transferred against an applied voltage.
Kaur, D., Filonenko, I., Mourokh, L.
openaire +2 more sources