Results 111 to 120 of about 1,026,086 (312)

Remotely operated high pressure valve protects test personnel [PDF]

, 1967
High pressure valve used in testing certain spacecraft systems is safely opened and closed by a remotely stationed operator. The valve is self-regulating in that if the incoming pressure drops below a desired value the valve will automatically close ...
Howland, B. T.
core   +1 more source

From Clinic to Computation: Multiscale Bioengineering Strategies for Durable Biological Aortic Valve Replacements

Advanced Functional Materials, EarlyView.
Bioprosthetic aortic valves have revolutionized the treatment of aortic stenosis, but their durability is limited by structural valve deterioration (SVD). This review focuses on the pericardial tissue at the heart of these valves, examining how its mechanical properties and calcification drive fatigue and failure.
Gabriele Greco, Pierfrancesco Gaziano, Serena Anglese, Simone Morganti, Carlo de Vincentiis, Ferdinando Auricchio, Michele Marino, Michele Conti   +7 more
wiley   +1 more source

Inexpensive check valve is installed in standard AN fittings [PDF]

, 1965
Check valve with a cylindrical flanged tube body is used in standard AN fittings.
Martinez, J. S.
core   +1 more source

Atomic‐Level Ionic Displacement Polarization Enhanced Piezocatalytic Hydrogen Evolution in Covalent Organic Frameworks

Advanced Functional Materials, EarlyView.
Two isomorphic COFs were synthesized and compared, including an amphoteric COF (SQ‐TAPT) and a neutral COF (PDA‐TAPT). The ionic bonds in SQ‐TAPT introduce more Born effective charges, thereby enhancing its ionic displacement polarization. Experimental and theoretical calculations demonstrated that SQ‐TAPT exhibited higher polarity and stronger ...
Ge Yan, Xiaodong Sun, Kailai Zhang, Shuai Zhang, Haijun Hu, Hui Li, Zhenglong Li, Hongwei Huang, Liqun Ye, Jiyang Li, Yunling Liu, Hongge Pan, Tianyi Ma   +12 more
wiley   +1 more source

Bioprinting Organs—Science or Fiction?—A Review From Students to Students

Advanced Healthcare Materials, EarlyView.
Bioprinting artificial organs has the potential to revolutionize the medical field. This is a comprehensive review of the bioprinting workflow delving into the latest advancements in bioinks, materials and bioprinting techniques, exploring the critical stages of tissue maturation and functionality.
Nicoletta Murenu, Camilla Mussoni, Mateo S. Andrade Mier, Paula Buettner, Nathaly Chicaiza‐Cabezas, Yi‐Yu Robin Dai, Jessica Faber, Maren Fiedler, Zan Lamberger, Xuen Jen Ng, Vanessa Moessler, Anna Rederer, Jonas Roeder, Sabrina Stecher, Katinka Theis, Jeanette Weigelt, Silvia Budday, Gregor Lang, Natascha Schaefer   +18 more
wiley   +1 more source

Transcatheter pulmonary valve replacement with the venusP-valve system in a patient with double outlet right ventricle and transposition of the great arteries a first-in-human case report

Frontiers in Cardiovascular Medicine
The Taussig-Bing anomaly is a rare form of double outlet right ventricle (DORV) characterized by complex physiology, often requiring multiple surgeries.
Federica Gramegna, Paolo Denti, Matteo Saccocci, Nicola Buzzatti, Alessandro Faggi, Eustachio Agricola, Eustachio Agricola, Ottavio Alfieri, Ottavio Alfieri, Massimo Chessa, Francesco Maisano, Francesco Maisano   +11 more
doaj   +1 more source

Congenital Mid Ureteric Valve Stenosis Revisited: Case Report and Review of the Literature

Frontiers in Pediatrics, 2019
Congenital mid ureteric valve (MUV) stenosis is a very rare entity. Definitive preoperative diagnosis is clinically challenging, and most patients are misdiagnosed preoperatively. Intraoperative identification is therefore very important.
Mohammed Elifranji, Abderrahman Elkadahi, Adrian Charles, Tariq O. Abbas, Tariq O. Abbas, Tariq O. Abbas   +5 more
doaj   +1 more source

Solenoid-operated swing-check valve [PDF]

, 1972
Modification of spring-loaded swing-check valve for solenoid operation provides low-vacuum swing-check valve which can be operated ...
Meacham, R. H., Quattrone, P. D.
core   +1 more source

Multiscale Hybrid Surface Topographies Orchestrate Immune Regulation, Antibacterial Defense, and Tissue Regeneration

Advanced Healthcare Materials, EarlyView.
Hybrid wrinkled topographies coordinate immune, tissue, and bacterial interactions. The surfaces promote osteointegration, tune macrophage polarization, and inhibit biofilm formation, highlighting a multifunctional strategy for next‐generation implant design.
Mohammad Asadi Tokmedash, Jacob Robins, J. Scott VanEpps, Minji Kim, Jouha Min   +4 more
wiley   +1 more source

Two-part valve acts as quick coupling [PDF]

, 1964
A two-part valve simplifies the problem of filling large tanks from smaller ones. One part acts as a check valve and remains integral to the recipient system, while the other part is integral to the donor ...

core   +1 more source