Browsing Τμήμα Μηχανικών Μηχανολογίας και Κατασκευαστικής / Department of Mechanical and Manufacturing Engineering by Title
Now showing items 830-849 of 1036
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Article
Structural Modifications Induced by Sodium Doping in PbTe Thermoelectric Materials Prepared by Low Temperature Synthesis
(2014)In the current study, the effect of a Low Temperature Synthesis (LTS) and sodium doping on the structural properties of PbTe materials is investigated using high resolution transmission electron microscopy and image analysis ...
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Article
Structural properties of SnO2 nanowires and the effect of donor like defects on its charge distribution
(2013)Tin oxide (SnO2) nanowires (NWs) with diameters of 50 nm, lengths up to 100 μm and a tetragonal rutile crystal structure have been grown by low pressure reactive vapour transport on 1 nm Au/Si(001). The free carrier density ...
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Article
A structural, kinetic model of soft tissue thermomechanics
(2008)A structure-based kinetic model was developed to predict the thermomechanical response of collagenous soft tissues. The collagen fibril was represented as an ensemble of molecular arrays with cross-links connecting the ...
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Conference Object
A structural, kinetic model of soft tissue thermomechanics
(Affiliation: Department of Chemical Engineering, University of Minnesota, Minneapolis, MN 55455, United StatesAffiliation: Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455, United StatesAffiliation: Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN 55455, United StatesCorrespondence Address: Stylianopoulos, T.Department of Chemical Engineering, University of Minnesota, Minneapolis, MN 55455, United States, 2007)
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Structural, magnetic, and electrical properties of NiMnSb thin films grown on InSb by pulsed-laser deposition
(2004)We report the growth of single-phase, stoichiometric polycrystalline thin films of the half-Heusler ferromagnet NiMnSb, predicted to be half-metallic, on single crystal InSb (100) substrates heated at 200°C by pulsed laser ...
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Article
Structurally-defined semi-interpenetrating amphiphilic polymer networks with tunable and predictable mechanical response
(2016)The synthesis of structurally-defined semi-interpenetrating amphiphilic networks is realized by employing an easy and versatile synthetic concept based on the encapsulation of well-defined hydrophobic linear polymer chains ...
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Article
Structure and Magnetic Property Control of Copper Hydroxide Acetate by Non-Classical Crystallization
(2017)Copper hydroxide acetate (CHA), one layered hydroxide compound with tunable magnetism, attracts great interest because of its potential applications in memory devices. However, ferromagnetism for CHA is only demonstrated ...
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Article
Structure and mechanical properties of low temperature magnetron sputtered nanocrystalline (nc-)Ti(N,C)/amorphous diamond like carbon (a-C:H) coatings
(2010)This paper reports on the structure and mechanical properties of 2μm thick nanocomposite (nc-) Ti(N,C)/amorphous diamond like carbon (a-C:H) coatings deposited on 100Cr6 steel substrates, using low temperature ( 200°C) DC ...
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Article
Structure and scales in turbulence modeling
(2002)The enstrophy of the large-scale energy-containing turbulence is proposed as the second turbulence scale for use, in conjunction with the turbulence energy, in two-scale one-point engineering turbulence models. Its transport ...
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Conference Object
Structure anisotropy in MHD turbulence subjected to mean shear and frame rotation
(Affiliation: Dept. of Mechanical and Manufacturing Engineering, University of Cyprus, Nicosia, CyprusAffiliation: Department of Mechanical Engineering, Stanford University, Stanford, CA 94305, United StatesAffiliation: Center for Turbulence Research, NASA Ames Research Center, United StatesCorrespondence Address: Kassinos, S.C.Dept. of Mechanical and Manufacturing Engineering, University of Cyprus, Nicosia, Cyprusemail: kassinos@ucy.ac.cy, 2005)We consider homogeneous turbulence in a conducting fluid that is exposed to a uniform external magnetic field while being sheared in fixed and rotating frames. We take both the frame-rotation axis and the applied magnetic ...
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Article
Structure inhomogeneities, shallow defects, and charge transport in the series of thermoelectric materials K2Bi8-xSb xSe13
(2006)The charge transport properties of the low-dimensional thermoelectric materials K2 Bi8-x Sbx Se13 (0<x≤8) were studied as a function of temperature and composition. The Seebeck coefficient shows an evolution from n - to p ...
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Article
Structure, hardness and mechanical properties of magnetron-sputtered titanium-aluminium boride films
(1999)TiAlB films nominally 2 μm thick were produced by simultaneous sputtering from TiAl and TiB2 targets onto Si-(110) and AISI316 stainless steel substrate materials at a temperature of 170°C. The influence of different B/Al ...
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Article
Structure, mechanical and tribological properties of nitrogen-containing chromium coatings prepared by reactive magnetron sputtering
(1999)Cr(1-x)N(x) coatings were deposited by magnetron sputtering at a substrate temperature of 200°C onto AISI 316 stainless-steel substrates immersed in an Ar/N2 plasma. The goal of this investigation was to study the influence ...
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Article
Structure, mechanical and tribological properties of sputtered TiAlBN thin films
(1999)TiAlBN films were produced by simultaneously sputtering from TiAl and TiB2 targets in Ar/N2 mixtures at a substrate temperature of 150 °C. The goal of this investigation was to study the influence of the nitrogen content ...
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Article
Structure, mechanical and tribological properties of Ti-B-N and Ti-Al-B-N multiphase thin films produced by electron-beam evaporation
(1998)Titanium-based multiphase ceramic coatings were deposited by electron-beam plasma-assisted physical vapor deposition, evaporating mixtures of Ti, TiB2, and (Ti0.6Al0.4)B2.19N1.47 material in Ar or Ar/N2 plasmas. All exhibited ...
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Article
Structure, reactivity, luminescence and magnetism of dinuclear Ln 3+ complexes produced by the Ln3+-assisted hydrolysis of 3,6-bis(2-pyridyl)tetrazine
(2013)Twelve Pr3+, Sm3+, Eu3+, Gd3+, Tb3+ and Dy3+ complexes of N-(pyridin-2-ylmethylene) picolinohydrazonate (phzp-) were synthesized by the Ln3+ assisted hydrolysis of 3,6-bis(2-pyridyl)-1,2,4,5-tetrazine. Crystallographic ...
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Article
A structure-based model for the transport of passive scalars in homogeneous turbulent flows
(2016)A structure-based model has been constructed, for the first time, for the study of passive scalar transport in turbulent flows. The scalar variance and the large-scale scalar gradient variance are proposed as the two ...
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Article
A structure-based model for transport in stably stratified homogeneous turbulent flows
(2017)We present an extension that allows a recently proposed structure-based model for turbulent scalar transport to account for buoyancy effects. The proposed model is based on a generalization of the Interactive Particle ...
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Article
Structure-based turbulence model: Application to a rotating pipe flow
(2002)A new approach for modeling the one-point turbulence statistics, which takes into account the information on turbulence structure, has been suggested in Kassinos and Reynolds (Report TF-61, Thermosciences Division, Department ...
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Structure-based turbulence modeling for wall-bounded flows
(2000)The performance of Reynolds stress transport (RST) models in non-equilibrium flows is limited by the lack of information about two dynamically important effects: The role of energy-containing turbulence structure ...