Browsing Τμήμα Μηχανικών Μηχανολογίας και Κατασκευαστικής / Department of Mechanical and Manufacturing Engineering by Title
Now showing items 278-297 of 1036
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Article
Estimation of rotational frequency responses
(2003)Rotational frequency response functions are potentially valuable for structural damage detection but are difficult to obtain because of the practical problems of applying a pure moment. In the literature various indirect ...
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Article
Evaluating the microstructure and performance of nanocomposite PVD TiAlBN coatings
(2002)Physical vapour deposition (PVD) TiAlBN coatings can exhibit excellent wear resistance, with optimised coating compositions demonstrating a 150% increase in lifetime compared to standard TiAlN coatings in wet-cutting drill ...
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Conference Object
Evaluation metrics of upper extremities for people with neurological disorders: An energy based approach
(American Society of Mechanical Engineers, 2017)Various neurological disorders, like Parkinson's disease, Multiple Sclerosis, Huntington's disease and Stroke, affect millions of people worldwide. Tremor that is a result of these disorders affects the performance of many ...
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Conference Object
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Article
Evaluation of electrospun polymer-Fe3O4 nanocomposite mats in malachite green adsorption
(2015)Magnetoactive nanocomposite fibers, based on poly(ethylene oxide) (PEO), poly(l-lactide) (PLLA) and pre-formed oleic acid-coated magnetite nanoparticles (OA·Fe3O4), were fabricated by electrospinning and evaluated for the ...
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Article
Evaluation of novel, cationic electrospun microfibrous membranes as adsorbents in bacteria removal
(2015)Electrospun microfibrous membranes comprised of poly(methyl methacrylate)-poly((2-diethylamino)ethyl methacrylate) random copolymers (PMMA-co-PDEAEMA) of various chemical compositions blended together with a commercially ...
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Conference Object
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Article
Evaluation of Perfusion Quantification Methods with Ultrasound Contrast Agents in a Machine-Perfused Pig Liver
(2018)Purpose To evaluate dynamic contrast-enhanced ultrasound (DCEUS) as a tool for measuring blood flow in the macro- and microcirculation of an ex-vivo machine-perfused pig liver and to confirm the ability of DCEUS to accurately ...
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Evaluation of PVP/Au nanocomposite fibers as heterogeneous catalysts in indole synthesis
(2016)Electrospun nanocomposite fibers consisting of crosslinked polyvinylpyrrolidone (PVP) chains and gold nanoparticles (Au NPs) were fabricated, starting from highly stable PVP/Au NP colloidal solutions with different NP ...
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Evaluation of the Accuracy of Liver Lesion DCEUS Quantification With Respiratory Gating
(2016)Confidence in the accuracy of dynamic contrast enhanced ultrasound (DCEUS) quantification parameters is imperative for the correct diagnosis of liver lesion perfusion characteristics. An important source of uncertainty in ...
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Article
Evidence for dx2-y2 pairing from the magnetic field modulation of YBa2Cu3O7-Pb Josephson junctions
(1995)We have measured the magnetic field modulation of the critical current of YBCO-Au-Pb Josephson junctions fabricated on the a and b edges and straddling the a-b corners of YBCO single crystals. In corner junctions, the ...
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Article
Evidence of order-parameter symmetry and of a normal metallic state in electron-irradiated YBa2Cu3O7-8 (YBCO)
(1996)A key difference between a d-wave superconductor and an anisotropic s-wave one is the expected effect of nonmagnetic point defects on Tc. For the former, Tc becomes zero, whereas for the latter, Tc reaches a nonzero constant ...
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Article
Evolution of osmotic pressure in solid tumors
(2014)The mechanical microenvironment of solid tumors includes both fluid and solid stresses. These stresses play a crucial role in cancer progression and treatment and have been analyzed rigorously both mathematically and ...
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Article
Exothermic reaction characteristics of continuously ball-milled Al/Ni powder compacts
(2013)Self-propagating reactions in compacted pellets of continuously low-energy ball-milled aluminium (Al) and nickel (Ni) powders at a composition corresponding to AlNi3 were investigated. The formation of a bi-modal structure ...
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Article
Experimental and computational analyses reveal dynamics of tumor vessel cooption and optimal treatment strategies
(2019)Cooption of the host vasculature is a strategy that some cancers use to sustain tumor progression without—or before—angiogenesis or in response to antiangiogenic therapy. Facilitated by certain growth factors, cooption can ...
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Conference Object
Experimental and modeling evidence for the reduction of thermal conductivity in Mg2Si by fine tuning the nano & micro-structural features
(Elsevier Ltd, 2017)In this paper, experimental and modeling evidence for reduced thermal conductivity in Bi-doped Mg2Si is presented. Upon doping, lattice thermal conductivity was reduced monotonically and, at the same time, MgO content was ...
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Experimental determination of the absolute temperature modulation in photothermal microscopy of Y1Ba2Cu3O7 crystals
(1997)We present a technique to experimentally determine the value of the temperature perturbation ST in photothermal microscopy. Knowledge of δT is necessary for proper analysis of the differential optical reflectivity (∂R/∂T) ...
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Experimental evidence for a multicritical point in the magnetic phase diagram for the mixed state of clean untwinned YBa2Cu3O7
(1993)We report on transport measurements in fields up to 16 T in clean, untwinned single crystals of YBa2Cu3O7 which indicate that there is a critical end point for first-order melting in the H-T phase diagram in the mixed state ...
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Experimental implementation of the ‘effective 4-bar method’ on a reconfigurable articulated structure
(2019)A structural concept for reconfigurable buildings is considered. Its basic element is the planar n-bar linkage whose joints are equipped with brakes. Stepwise reconfigurations are realized based on the ‘effective 4-bar’ ...
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Experimental measurements and mathematical modeling towards quantification of brain swelling stress
(2017)Traumatic brain injury results in brain tissue swelling which can be a life threatening condition due to skull confinement. While previous efforts successfully measured the exhibited volume change in brain tissue swelling, ...