Results 51 to 60 of about 102,186 (212)

An alternative solution for patient with high risk of coronary obstruction underwent TAVI procedure using a novel second-generation device – a case series

Journal of Cardiothoracic Surgery, 2019
Background Obstruction of the left or right coronary artery is a rare but lethal complication during transcatheter aortic valve implantation (TAVI). The new J-Valve™ prosthesis is a new second generation TAVI device which has several features to avoid ...
Hong Qian, Yucheng Chen, Zhaoyun Cheng, Yingqiang Guo   +3 more
doaj   +1 more source

Experimental studies of performance and emissions in a 2/4-stroke engine [PDF]

, 2014
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel UniversityDirect Injection (DI) gasoline engines are staging a come-back because of its potential for improved fuel economy through principally the engine down-sizing
Ojapah, Mohammed
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Experimental Study and Simulation Analysis on Electromagnetic Characteristics and Dynamic Response of a New Miniature Digital Valve

Advances in Materials Science and Engineering, 2018
In order to get the better electromagnetic characteristics of the micro digital valve, the larger electromagnetic force should be obtained in the smaller electromagnetic structure.
Meisheng Yang, Junhui Zhang, Bing Xu
doaj   +1 more source

MODIFICATION OF HAND HOLE VALVE IN 10 KG CAPACITY MINI GASIFIER MACHINE

Jurnal Teknik Mesin, 2020
Coal is one of the fossil fuels generally is that sedimentary rocks can ignite, formed from organic deposits. Along with the depletion of reserves of fossil energy sources, there is a coal energy conversion technology that is the gasification process ...
Fachri Koeshardono
doaj   +1 more source

Uma análise numérica do impacto em válvulas do tipo palheta de compressores [PDF]

, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia MecânicaVálvulas do tipo palheta adotadas em compressores estão sujeitas a falhas estruturais devido à fadiga por flexão e por ...
Lajús Júnior, Francisco Carlos
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Design and Characterization of a New Pulsed Molecular-Beam Valve [PDF]

, 2016
A common technique for producing samples of cold molecules that can be trapped and studied is electromagnetic deceleration of a fast moving, but internally cold, supersonic beam.
Collett, Ian W.
core   +3 more sources

The System Design of a New Electronic Mixing Valve for an Instant Boiling Water Dispenser [PDF]

, 2020
This thesis describes the development of a new electronic mixing valve forQuooker B.V., manufacturer of instant boiling water dispensing systems. Amixing valve is able to control the blending of different liquids to ensure apredetermined outcome.
Hoogendoorn, Matthijs (author)
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Analysis on the Performance Improvement of Reciprocating Pump with Variable Stiffness Valve using CFD

Journal of Applied Fluid Mechanics, 2020
As a key component of reciprocating pump, the valve has a significant influence on its performance. However, it is difficult for the existing valve to simultaneously solve the problems such as fatigue, erosion and cavitation in engineering application ...
G. Zhu, S. M. Dong
doaj  

CFD Simulation and Robust Design Optimization of the Valve Seat and Orifice Plate in Port Fuel Injector [PDF]

Journal of Applied Fluid Mechanics
The mass flow rate of the fuel-air mixture can vary due to the geometry and dimensions of the valve seat and orifice plate at the tip of the port fuel injector.
P. Daopiset, J. Bumrungpetch, E. Juntasaro, A. Likitchatchawankun   +3 more
doaj   +1 more source

Forced induction rotary valve system [PDF]

, 2007
The current valve design found in modern four-stroke internal combustion engines employs poppet style valves for fresh air/fuel mixture admission to the combustion chamber, as well as the relief of burnt gases away from the cylinder.
Garza, Arsenio, Brigidi, Michael, Kratounov, Stefan   +2 more
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