Browsing Τμήμα Μηχανικών Μηχανολογίας και Κατασκευαστικής / Department of Mechanical and Manufacturing Engineering by Title
Now showing items 502-521 of 1036
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Mechanical and high pressure tribological properties of nanocrystalline Ti(N,C) and amorphous C:H nanocomposite coatings
(2010)This paper reports on the mechanical and high pressure tribological properties of nanocrystalline (nc-) Ti(N,C)/amorphous (a-) C:H deposited, using low temperature (∼200°C) DC reactive magnetron sputtering. The mechanical ...
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Mechanical and tribological properties of hard aluminium-carbon multilayer films prepared by the Laser-Arc technique
(1998)The method of laser-induced vacuum arc (Laser-Arc) combines the good controllability of pulsed laser deposition with the high efficiency of a vacuum arc technique. One advantage of this technique is the reduction of droplets, ...
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Mechanical Compression Regulates Brain Cancer Cell Migration Through MEK1/Erk1 Pathway Activation and GDF15 Expression
(2019)Mechanical compression is a common abnormality of brain tumors that has been shown to be responsible for the severe neurological defects of brain cancer patients representing a negative prognostic factor. Indeed, it is of ...
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Mechanical properties of structurally-defined magnetoactive polymer (co)networks
(2015)The mechanical properties of structurally-defined magnetoactive polymer (co)networks synthesized from well-defined poly(2-dimethylamino)ethyl methacrylate (poly(DMAEMA)) homopolymers and diblock copolymers of poly(DMAEMA) ...
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Conference Object
Mechanical stress regulates tissue oxygenation, cancer cell proliferation and drug delivery during progression of solid tumors
(Springer Verlag, 2016)Oxygen supply plays a central role in cancer cell proliferation. While vascular density increases at the early stages of carcinogenesis, mechanical solid stresses developed during growth compress tumor blood vessels and, ...
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Mechanics and energetics modeling of ball-milled metal foil and particle structures
(2017)The reported research establishes a semi-analytical computational predictive model of fractal microstructure in ball-milled metal foils and powder particulates, with emphasis on its transformation mechanics via an energy-based ...
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Conference Object
Mechanics Science-Enabled Nanoheater Multi-Layer Materials Manufactured by Ball Milling
(Materials Research Society, 2017)This article reports investigation of the effects of high-rate stochastic micro-mechanics on the produced particulate size distribution during ball milling of reactive bimetallic foils (nanoheaters), by experimental and ...
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Conference Object
Medical Telerobotics and the Remote Ultrasonography Paradigm Over 4G Wireless Networks
(2018)Medical telerobotic systems provide a framework for performing interventional and diagnostic procedures remotely utilizing communication networks. Over the past decade, various systems have demonstrated the feasibility and ...
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Memristive and neuromorphic behavior in a Li x CoO 2 nanobattery
(2015)The phenomenon of resistive switching (RS), which was initially linked to non-volatile resistive memory applications, has recently also been associated with the concept of memristors, whose adjustable multilevel resistance ...
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Method for Estimating the Acoustic Pressure in Tissues Using Low-Amplitude Measurements in Water
(2015)The aim of this study was to evaluate a simple, reliable and reproducible method for accuracy in estimating the acoustic pressure delivered in tissue exposed to ultrasound. Such a method would be useful for therapeutic ...
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A method for obtaining single domain superconducting YBa2Cu3O7-x single crystals
(1989)A method is reported for producing an orthorhombic YBa2Cu3O7-x single crystal comprised entirely of a single untwinned domain. The transformation from a polydomain to a single domain single crystal is carried out by applying ...
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A method to enhance the CO2 storage capacity of pyroxenitic rocks
(2015)Investigation of new efficient pathways for CO2 sequestration is of great significance for the mitigation of climate change. Ultramafic rocks are considered among the most promising lithotypes for the safe storage of CO2 ...
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Article
MHD flow past a circular cylinder using the immersed boundary method
(2010)The immersed boundary method (IB hereafter) is an efficient numerical methodology for treating purely hydrodynamic flows in geometrically complicated flow-domains. Recently Grigoriadis et als. [1] proposed an extension of ...
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Micellization behavior of poly(η-butyl methacrylate)-block-poly(2- (acetoacetoxy)ethyl methacrylate)
(2009)A series of poly(η-butyl methacrylate)-block-poly(2-(acetoacetoxy)ethyl methacrylate)s (PBMA-b-PAEMA) were studied according to the formation of core-shell micelles in dilute cyclohexane solution (PBMA-shell, PAEMA-core). ...
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Microstructural and morphological effects on the tribological properties of electron enhanced magnetron sputtered hard coatings
(1995)X-ray diffraction measurements and scanning electron microscopy studies on close to stoichiometric titanium carbonitride [TiCxN(1 _x)] and carbon containing tungsten coatings produced in an electron enhanced unbalanced ...
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Article
Microstructure and nanomechanical properties of pulsed excimer laser deposited DLC:Ag films: Enhanced nanotribological response
(2017)Diamond-like carbon:silver (DLC:Ag) thin films, with metal contents as high as 16.8 at.%, have been deposited on silicon substrates using pulsed excimer laser deposition
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Conference Object
Microstructure, mechanical and tribological properties of reactive magnetron sputtered titanium carbide coatings
(Affiliation: Dept. of Mechanical and Manufacturing Engineering, University of Cyprus, 1678, Nicosia, CyprusAffiliation: Dept. PA-ATM01/SGP21, Engineering Process Technology, Robert Bosch GmbH, Postfach 300220, 70442 Stuttgart, GermanyAffiliation: Dept. of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, United StatesCorrespondence Address: Polycarpou, A. A.Dept. PA-ATM01/SGP21, Engineering Process Technology, Robert Bosch GmbH, Postfach 300220, 70442 Stuttgart, Germanyemail: polycarp@uiuc.edu, 2008)This study describes the correlation between the microstructure, mechanical and tribological properties of Ti 1-xCx coatings (with x being in the range of 0-0.5), deposited by reactive magnetron sputtering from a Ti target ...
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Microstructure-based, multiscale modeling for the mechanical behavior of hydrated fiber networks
(2008)A multiscale formulation is derived for the mechanics of a dilute fiber network microstructure, as occurs in in vitro reconstituted collagen gels, to accommodate the deterministic solution of a uniform-stress condition in ...
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Microvascular Injury and Perfusion Changes Induced by Ultrasound and Microbubbles in a Machine-Perfused Pig Liver
(2016)Localized drug delivery and uptake can benefit from the combined action of ultrasound and microbubbles at a specific site. Some of the possible mechanisms suggested are vessel poration and/or cell poration, but the exact ...