Results 41 to 50 of about 77,992 (260)
Nihon Kikai Gakkai ronbunshu, 2015 This study deals with a generation method of undulatory motion of an aquatic flexible plate, to improve the efficiency of an aquatic propulsion mechanism by suppression of a reflection wave on a trailing edge.
Yuichi MATSUMURA +5 more
doaj +1 more source
Karl Popper and the Mechanisms of Hydrogen Embrittlement
Advanced Engineering Materials, EarlyView.Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley +1 more source
Reflection of acoustic waves from the boundary or layer of two-phase medium
MATEC Web of Conferences, 2018 The inclined incidence of the acoustic wave on a layer of gas-droplet mixture or bubbly liquid of finite thickness is theoretically investigated. In the case of the incidence of the low-frequency acoustic wave to interface between the pure gas and ...
Gubaidullin D.A. +2 more
doaj +1 more source
Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying
Advanced Engineering Materials, EarlyView.An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara +8 more
wiley +1 more source
A Numerical Study on the Bragg Resonance Characteristics of Multiple Floating Breakwaters
Journal of Marine Science and EngineeringThis study investigates the Bragg resonance characteristics of multiple independently moored floating breakwaters and their wave attenuation performance using a computational fluid dynamics (CFD) model, OpenFOAM.
Weijie Liu, Zhengyang Luo, Miaohua Mao
doaj +1 more source
Effect of Acute Resistance Exercise on Carotid Artery Stiffness and Cerebral Blood Flow Pulsatility
Frontiers in Physiology, 2014 Arterial stiffness is associated with cerebral flow pulsatility. Arterial stiffness increases following acute resistance exercise (RE). Whether this acute RE-induced vascular stiffening affects cerebral pulsatility remains unknown.
Wesley K Lefferts +2 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.A distinct semi‐confined inner‐tube chemical vapor deposition geometry enables reproducible, large‐area growth of phase‐pure 2D β′‐In2Se3 from InI + Se precursors. Engineering local vapor transport and optimizing precursor delivery and temperature–time conditions yield uniform continuous films.
Dasun P. W. Guruge +8 more
wiley +1 more source
OBLIQUE SHOCK WAVE REFLECTION FROM THE WALL [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2015 Regular and Mach (irregular) reflection of an oblique shock wave from the wall is considered. Criteria for the transition from regular to irregular reflection are described: von Neumann criterion and the criterion for fixed Mach configuration. Specific
P. V. Bulat +2 more
doaj +1 more source
From Shear to Sound: Mechanics–Acoustics Mapping of TPMS Lattices
Advanced Engineering Materials, EarlyView.Triply periodic minimal surface (TPMS) lattices are mapped across mechanical and acoustic performance, revealing that descriptors validated in compression fail under shear. First‐time comparison with trusses included. A transition from porous to resonance‐driven absorption emerges at 25% density.
Lucía Doyle +3 more
wiley +1 more source
Reflections on wave reflections in chronic thromboembolic pulmonary hypertension [PDF]
European Heart Journal, 2007 Chronic thromboembolic pulmonary hypertension (CTEPH) is a surgically curable form of severe pulmonary hypertension.1 However, in ∼10% of the patients, the procedure may not be successful, because of persistent pulmonary hypertension after removal of proximally located thromboembolic material. This complication is of particularly poor prognosis. In the
Naeije, Robert, Huez, Sandrine
openaire +2 more sources