Results 91 to 100 of about 1,026,086 (312)
Ultrathin gate valve for high vacuum operation [PDF]
, 1971 Thin, compact, high-vacuum gate valve used to join two vacuum systems together demonstrates multiple operation reliability.
Ugiansky, R. J.
core +1 more source
Advanced Functional Materials, EarlyView.The concept of foulant particle manipulation and detachment from active microfiltration membranes via voltage‐driven vibrations is introduced. Actuator components are initially integrated onto the filtration membranes using an airbrush spray printing technique.
Irem Gurbuz, Hanieh Bazyar, Andres Hunt
wiley +1 more source
Shock-operated valve would automatically protect fluid systems [PDF]
, 1966 Glandless valve shuts down high-pressure fluid systems when severe shock from an explosion or earthquake occurs. The valve uses a pendulum to support the valve closure plug in the open position.
Branum, L. W., Wells, G. H.
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Presence Of A Congenitally Bicuspid Aortic Valve Among Patients Having Combined Mitral And Aortic Valve Replacement [PDF]
, 2012 Although bicuspid aortic valve occurs in an estimated 1% of adults and mitral valve prolapse in an estimated 5% of adults, occurrence of the 2 in the same patient is infrequent.
Hamman, Baron Lloyd +5 more
core +1 more source
Introducing Pure Calcium Orthophosphate Gels and Aerogels
Advanced Functional Materials, EarlyView.The synthesis of calcium phosphate‐based gels and aerogels is reported, which exhibit highly porous structures built up of networks of nanoparticles. In case of amorphous aerogels, this leads to yet unmatched specific BET surface areas, making these materials especially interesting for biomedical applications.
Oliver Jeske +4 more
wiley +1 more source
Solenoid valve performance characteristics studied [PDF]
, 1970 Current and voltage waveforms of a solenoid coil are recorded as the valve opens and closes. Analysis of the waveforms with respect to time and the phase of the valve cycle accurately describes valve ...
Abe, J. T., Blackburn, S.
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Spatially Tailorable Liquid Crystalline Elastomer Alignment During Digital Light Process 3D Printing
Advanced Functional Materials, EarlyView.Here, we report the fabrication of 3D printable liquid crystalline elastomer (LCE) structures with spatially tailorable alignment domains within the same layer. This work addresses the long‐standing challenge of preparing complex 3D LCE architectures with patterned functional domains to achieve nonlinear deformations. Fabrication of multi‐domains in 3D
Adam Bischoff +8 more
wiley +1 more source
Frontiers in Cardiovascular MedicineBackgroundThere are different types of transcatheter mitral valve repair (TMVr) currently in clinical use, including leaflet approximation, annular cinching, and restoration of the chordal apparatus of the mitral valve (MV).
Hiroaki Yokoyama +8 more
doaj +1 more source
Early calcific degeneration of the St. Jude Medical Epic aortic bioprosthesis
Clinical Case Reports, 2020 This report highlights the need for close surveillance of bioprosthetic valves. Unaccountable degeneration of bioprosthetic valves can develop early after implantation and usually requires replacing the failed valve with a mechanical prosthesis.
Mohammad Bashar Izzat +2 more
doaj +1 more source
Remotely operated gas-pressure regulator and shuttle valve [PDF]
, 1975 Valve features precise gas-pressure regulation and shuts off flow by remote control. Valve is made up of regulator valve cavity and spring-compression adjusts cavity.
Koch, E. F.
core +1 more source