Browsing Τμήμα Μηχανικών Μηχανολογίας και Κατασκευαστικής / Department of Mechanical and Manufacturing Engineering by Title
Now showing items 128-147 of 1036
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Article
Correlations of synthetic, spectroscopic, structural, and speciation studies in the biologically relevant Cobalt(II) - Citrate system: The tale of the first aqueous dinuclear Cobalt(II) - Citrate complex
(2003)Synthetic efforts targeting soluble species of Co(II) with the low molecular mass physiological ligand citric acid led to the isolation of the first dinuclear complex [Co2(C6H5O7)2 (H2O)4]2-, at pH ∼5, in the form of its ...
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Article
Cost-Effective Polymethacrylate-Based Electrospun Fluorescent Fibers toward Ammonia Sensing
(2017)The fabrication of cost-effective, polymer-based electrospun fluorescent fibrous grids and their evaluation as candidates for sensing is reported, drawing useful results on their applicability and efficiency in gas sensing ...
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Article
Coupled thermal-electrical finite element analysis of electrical resistance heating in hot stamping of ultra-high strength steel tubes
(2018)A hot metal gas stamping process of an ultra-high strength steel tube has been investigated using a coupled thermal-electrical finite element analysis. In this process, a quenchable air filled steel tube was quickly heated ...
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Conference Object
Crystal growth of ternary and quaternary alkali metal bismuth chalcogenides using Bridgman technique
(Affiliation: Dept. of Chemistry, Center of Fundamental Mat. Research, Michigan State University, East Lansing, MI 48824-1322, United StatesCorrespondence Address: Kyratsi, T.Dept. of Chemistry, Center of Fundamental Mat. Research, Michigan State University, East Lansing, MI 48824-1322, United States, 2001)Our exploratory research in new thermoelectric materials has identified the ternary and quaternary bismuth chalcogenides β-K2Bi8Se13, K2.5Bi8.5Se14 and K1+xPb4-2xBi7+xSe15, to have promising properties for thermoelectric ...
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Article
Crystal/glass phase change in KSb5S8 studied through thermal analysis techniques
(2004)The reversible crystal-glass and glass-crystal transitions discovered in KSb5S8 were studied in detail with nonisothermal scanning calorimetry techniques. When cooled, molten KSb5S8 becomes a metastable glass, which can ...
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Article
CsMBi3Te6 and CsM2Bi3Te7 (M = Pb, Sn): New thermoelectric compounds with low-dimensional structures
(2002)The new materials CsPbBi3Te6 nad CsPb2Bi3Te7 were discovered through reactions of CsBi4Te6 with PbTe, whereas the isostructural materials CsSnBi3Te6 and CsSn2Bi3Te7 were discovered through corresponding reactions with SnTe. ...
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Book Chapter
Cucurbituril: A Versatile “Bead” for Polyrotaxane Synthesis
(Springer-Verlag, 2004)
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Article
Current transport and thermoelectric properties of very high power factor Fe3O4/SiO2/p-type Si(001) devices
(2014)The current transport and thermoelectric properties of Fe3O4/SiO2/p-type Si(001) heterostructures with Fe3O4 thicknesses of 150, 200, and 350 nm have been investigated between 100 and 300K. We observe a sharp drop of the ...
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Article
Current transport in semiconductor nanowires with built-in barriers based on a 1D transfer matrix calculation
(2008)A one dimensional (1D) transfer matrix calculation of current transport in semiconductor nanowires with built-in barriers is described within the effective mass approximation by taking into account (i) the quantum confinement ...
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Article
Current Transport Properties of CuS/Sn:In2O3 versus CuS/SnO2 Nanowires and Negative Differential Resistance in Quantum Dot Sensitized Solar Cells
(2016)The structural, optical, and electrical transport properties of nanowires obtained by the deposition of Cu over Sn doped In2O3 and SnO2 nanowires followed by processing under H2S between 100 and 500°C have been investigated ...
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Article
Damage detection under varying environmental and operational conditions using Wavelet Transform Modulus Maxima decay lines similarity
(2016)Over the last three decades, there have been increasing demands to develop and deploy Structural Health Monitoring (SHM) systems for engineering structures in service. Since these structures are subjected to varying ...
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Article
Data storage applications based on LiCoO2 thin films grown on Al2O3 and Si substrates
(2015)In this study, LiCoO2 thin films were investigated for data storage applications based on scanning probe mediated approaches. LiCoO2, compared to other materials proposed for scanning probe mediated nanoscale patterning, ...
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Article
Defect states of chemical vapor deposition grown GaN nanowires: Effects and mechanisms in the relaxation of carriers
(2009)Carrier relaxation in GaN nanowires, grown by atmospheric pressure chemical vapor deposition, via direct nitridation of Ga with NH3 at 950 °C has been investigated in detail. Differential absorption measurements reveal a ...
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Article
Defining the Role of Solid Stress and Matrix Stiffness in Cancer Cell Proliferation and Metastasis
(2018)Solid tumors are characterized by an abnormal stroma that contributes to the development of biomechanical abnormalities in the tumor microenvironment. In particular, these abnormalities include an increase in matrix stiffness ...
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Article
Defining the role of solid stress and matrix stiffness in cancer cell proliferation and metastasis
(2018)Solid tumors are characterized by an abnormal stroma that contributes to the development of biomechanical abnormalities in the tumor microenvironment. In particular, these abnormalities include an increase in matrix stiffness ...
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Article
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Article
Delivering nanomedicine to solid tumors
(2010)Recent advances in nanotechnology have offered new hope for cancer detection, prevention, and treatment. While the enhanced permeability and retention effect has served as a key rationale for using nanoparticles to treat ...
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Article
Delivery of molecular and nanoscale medicine to tumors: Transport barriers and strategies
(2011)Tumors are similar to organs, with unique physiology giving rise to an unusual set of transport barriers to drug delivery. Cancer therapy is limited by nonuniform drug delivery via blood vessels, inhomogeneous drug transport ...
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Article
Delta(δ)-doping of semiconductor nanowires
(2013)The electronic sub-band structure of single δ-layers in GaAs nanowires have been determined via the self-consistent solution of the Poisson-Schrödinger equations in the effective mass approximation. The spread and sheet ...
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Article
The density of water in carbon nanotubes
(2008)In this paper, the density of water confined in carbon nanotubes of different sizes and chirality is calculated. Molecular dynamics is used to simulate the spontaneous filling of the nanotube with water molecules coming ...