Results 51 to 60 of about 37,008,848 (268)
Transcatheter aortic valve implantation. Role of imaging [PDF]
Global Cardiology Science & Practice, 2011 Transcatheter aortic valve implantation (T-AVI) has shown good results in high-risk patients with severe aortic stenosis. Throughout the whole process of T-AVI, different imaging modalities are indispensable.
Michael Gessat +4 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal +2 more
wiley +1 more source
Analysis and Suppression of Self-Excited Oscillations in Pressure Servo Valve System
Applied Sciences, 2022 In this paper, the phenomenon of pressure servo valve system self-excited oscillation is studied, the dynamic model of the system is established, and the validity of the model is verified by experimental analysis.
Jian Huang +4 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.The OntOMat ontology establishes a structured framework for polymer matrix fiber reinforced composite materials, integrating manufacturing processes, characterization methods, and multiscale design through the VDI/VDE 3682 formalized process description standard.
Nicolas Christ +19 more
wiley +1 more source
A computational fluid dynamics evaluation of a pneumatic safety relief valve [PDF]
, 2008 Safety relief valves are well established components preventing catastrophic failure of pressurised systems when non-normal operating conditions occur.
Dempster, W.M., Elmayyah, W.
core +3 more sources
Advanced Engineering Materials, EarlyView.Solvate ionic liquids lubrication reduced the coefficient of friction by ∼60% compared to dry sliding, reaching steady‐state values as low as 0.04–0.05. Corrosion weight‐loss measurements in 1 M HCl further demonstrated significant inhibition behavior, with only 100 ppm of [Li(G3)][TFSI] (∼68.5 μL/L) reducing corrosion‐product weight loss by 63 ...
Sameh Dabees +6 more
wiley +1 more source
Applied Sciences, 2021 Fuel flowrate control system and fuel thermal management are very important for aeroengine and the overall aircraft, and it has been researched for several decades.
Dong Li, Jie Hang, Yunhua Li, Sujun Dong
doaj +1 more source
Advanced Engineering Materials, EarlyView.Geometrical modifications on nitrocellulose membranes can result in observable differences in signal intensity relative to a reference membrane (top and bottom left). Using two reference experiments, we have developed a theoretical model that can reproduce the experimentally observed flow changes and provide information on membrane parameters, e.g ...
Maria Dimaki +2 more
wiley +1 more source
Robotic Valve Turning with a Wheeled Mobile Manipulator via Hybrid Passive/Active Compliance
SensorsThis paper addresses the problems of valve-turning operation in rescue environments where a wheeled mobile manipulator (WMM) is employed, including the possible occurrence of large internal forces.
Hongjun Xing +4 more
doaj +1 more source
Diesel Engine Valve Clearance Detection Using Acoustic Emission [PDF]
, 2010 This paper investigated, using experimental method, the suitability of acoustic emission (AE) technique for the condition monitoring of diesel engine valve faults.
Gu, Fengshou +7 more
core +1 more source