Results 71 to 80 of about 448,899 (312)

Transcatheter valve-in-valve implantation in mitral valve bioprosthesis

Kardiologia Polska, 2013
Tomasz Hirnle, Slawomir Dobrzycki, Marek Frank, Bozena Sobkowicz, Maciej Mitrosz 1Klinika Kardiochirurgii, Uniwersytecki Szpital Kliniczny, Bialystok 2Klinika Kardiologii Inwazyjnej z Oddzialem Intensywnej Opieki Kardiologicznej i Pracownią Hemodynamiki, Uniwersytecki Szpital Kliniczny, Bialystok 3Klinika Kardiologii z Oddzialem Intensywnego Nadzoru ...
Tomasz, Hirnle, Sławomir, Dobrzycki, Marek, Frank, Bożena, Sobkowicz, Maciej, Mitrosz   +4 more
openaire   +2 more sources

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

Advanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana, Indra Apsite, Leonid Ionov   +2 more
wiley   +1 more source

The analysis of the main directions for reducing the intensity of mass flows of the working fluid through leaks in the working chamber of a piston long-stroke low-speed compressor stage [PDF]

Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение"
The working processes and integral characteristics of piston long-stroke low-speed compressor stages are considered. Well-known technologies for increasing the feed rate are considered as objects of comparison: selection of the main dimensions and ...
V. L. Yusha, S. S. Busarov, A. V. Nedovenchany   +2 more
doaj   +1 more source

Autonomous valves in micro-fluidic manifolds based on versatile photoresponsive ionogels [PDF]

, 2009
Versatility in valve actuation within micro-fluidic devices is very desirable since precise flow control, provision of exact reagent amounts, contamination prevention between reagents, autonomy, disposability and low-cost manufacture are factors that ...
Benito-Lopez, Fernando, Byrne, Robert, Diamond, Dermot   +2 more
core  

Experimental comparison between proportional and PWM-solenoid valves controlled servopneumatic positioning systems [PDF]

, 2017
The performance of the Dynamical Adaptive Backstepping-Sliding Mode Control (DAB-SMC) scheme for positioning of a pneumatic cylinder regulated by two types of PWM-solenoid valves is experimentally investigated.
Abd. Rahman, Ramhuzaini, Sepehri, Nariman   +1 more
core   +1 more source

Smart, Bio‐Inspired Polymers and Bio‐Based Molecules Modified by Zwitterionic Motifs to Design Next‐Generation Materials for Medical Applications

Advanced Functional Materials, EarlyView.
Bio‐based and (semi‐)synthetic zwitterion‐modified novel materials and fully synthetic next‐generation alternatives show the importance of material design for different biomedical applications. The zwitterionic character affects the physiochemical behavior of the material and deepens the understanding of chemical interaction mechanisms within the ...
Theresa M. Lutz, Jonas De Breuck, Sahar Salehi, Meike N. Leiske   +3 more
wiley   +1 more source

Timely Management of Obstructive Prosthetic Valve Thrombosis

JACC: Case Reports, 2019
Obstructive bioprosthetic valve thrombosis is associated with hemodynamic compromise, and evidence on management with fibrinolysis is limited. Echocardiography is required to assess thrombus size and its effects on valve gradients, area, and leaflet ...
Elona Rrapo Kaso, MD, Steve A. Noutong, MD, LeAnn N. Denlinger, MD, Mohammed Morsy, MD, Christopher M. Kramer, MD   +4 more
doaj   +1 more source

Precision control system for engine fuel [PDF]

, 1970
System controls two or more pneumatically operated metering valves from common pneumatic source without interaction between valve controls. Unit affords independent metering of liquid from single source to two concurrent applications.
Hawkins, D. E.
core   +1 more source

Raman Microscopy at the Organic–Inorganic Interfaces in Human Calcified Aortic Valves Shows the Co‐Existence of Whitlockite Crystals and Carbonated Hydroxyapatite‐Mineralized Collagen Fibrils

Advanced Functional Materials, EarlyView.
This study advances our understanding of aortic valve stenosis by capturing spatially resolved chemical and structural changes at the nanoscale. The findings highlight the potential of combined Raman and electron microscopy for understanding calcification mechanisms across diverse tissue types.
Robin H. M. Van der Meijden, Carolien T. A Kuster, Amber van Broekhoven, Raphaela Allgayer, Luco Rutten, Rona Roverts, Marta Cerruti, Elena Macías‐Sánchez, Jan Hein Cornel, Salloua el Messaoudi, Anat Akiva, Nico Sommerdijk   +11 more
wiley   +1 more source

Study on the effect of the pressure characteristics of the cone throttle on the cavitation

The Journal of Engineering, 2018
According to the cone-type throttle valve is prone to cavitation, resulting in the reduction in the performance of the cone throttle valve. Here, a visual experimental platform for hydraulic cavitation is built, and the cavitation number of the conical ...
Jian Zhang, Bosong Duan, Jihai Jiang, Hui Zhi   +3 more
doaj   +1 more source