Τμήμα Μηχανικών Μηχανολογίας και Κατασκευαστικής / Department of Mechanical and Manufacturing Engineering: Recent submissions
Now showing items 501-520 of 1036
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Ultrafast transient spectroscopy and photoluminescence properties of V 2O5 nanowires
(2013)The properties of V2O5 semiconductor nanowires have been investigated using ultrashort transient absorption spectroscopy in conjunction with time resolved photoluminescence. Femtosecond pulse excitation has been utilized ...
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Conference Object
Vortex shedding lock-on in a periodic freestream flow past a circular cylinder
(Publ by ASME, 1993)Vortex lock-on phenomena in flow past a circular cylinder with a periodic component superimposed on the mean free stream flow is investigated using concepts from dynamical systems (chaos) theory. Numerical results show ...
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Determination of the rheological parameters of self-compacting concrete matrix using slump flow test
(2010)The classification of a concrete mixture as self-compacting (SCC) is performed by a series of empirical characterization tests that have been designed to assess not only the flowability of the mixture but also its segregation ...
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First-passage study and stationary response analysis of a BWB hysteresis model using quasi-conservative stochastic averaging method
(1995)The quasi-conservative stochastic averaging (QCSA) method is applied to a Bouc-Wen-Baber hysteretic system (BWB) under Gaussian white noise excitations. The stationary probability density of the system's response amplitude ...
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Determination of the rheological parameters of self-compacting concrete matrix using slump flow test
(2010)
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Article
Sign reversal of the Hall effect in YBa2(Cu1-x)3O7-δ single crystals
(1995)We have measured the in-plane Hall effect and in-plane resistivity of cobalt-doped YBa2Cu3O7-δ (YBCO) single-crystal samples. The concentration of cobalt ranged from 1 to 3%. As the applied field was varied, a sign reversal ...
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Article
Electrohydrodynamic methods for the development of pulmonary drug delivery systems
(2018)Electrospinning and electrospraying are two highly versatile and scalable electrohydrodynamic methods, which have attracted considerable attention during the last years towards the fabrication of polymer-based drug delivery ...
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Conference Object
Thermal, electron transport and far infrared properties of PbTe single crystals doped with Br
(Affiliation: Institute for Multidisciplinary Research, Kneza Viseslava 1, 11000 Beograd, SerbiaAffiliation: Physics Department, Solid State Section, Aristotle University of Thessaloniki, 54214 Thessaloniki, GreeceAffiliation: Institute of Technical Sciences of SASA, Knez Mihailova 35, 11000 Beograd, SerbiaAffiliation: Department of Mechanical and Manufacturing Engineering, University of Cyprus, 1678 Nicosia, CyprusCorrespondence Address: Nikolic, M.V.Institute for Multidisciplinary Research, Kneza Viseslava 1, 11000 Beograd, Serbia, 2012)Understanding the properties of PbTe remains in focus as enhancement of thermoelectric efficiency of this material is studied extensively. In this work single crystals of PbTe, doped with less than 2 at % Br, were synthesized ...
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Article
Modelling and Simulation of Bolted Joints under Harmonic Excitation
(2003)Bolted metal joints under harmonic loading exhibit hysteretic behaviour. This is the major source of damping in frame structures with bolted joints, since the material damping of these structures is very small. In this ...
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Article
Sonic-hedgehog pathway inhibition normalizes desmoplastic tumor microenvironment to improve chemo- and nanotherapy
(2017)Targeting the rich extracellular matrix of desmoplastic tumors has been successfully shown to normalize collagen and hyaluronan levels and re-engineer intratumoral mechanical forces, improving tumor perfusion and chemotherapy. ...
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Role of vascular normalization in benefit from metronomic chemotherapy
(2017)Metronomic dosing of chemotherapy - defined as frequent administration at lower doses - has been shown to be more efficacious than maximum tolerated dose treatment in preclinical studies, and is currently being tested in ...
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Developing and investigating a pure Monte-Carlo module for transient neutron transport analysis
(2017)In the field of computational reactor physics, Monte-Carlo methodology is extensively used in the analysis of static problems while the transient behavior of the reactor core is mostly analyzed using deterministic algorithms. ...
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Transition temperature and irreversibility line of cobalt-doped single-crystal YBa2Cu3O7-: The effect of high-pressure oxygen annealing
(1994)We have measured the effect of cobalt on the superconducting transition temperature (Tc) and the dc irreversibility line (IRL) of single-crystal YBa2Cu3O7- (YBCO). Tc of a single crystal annealed in flowing oxygen at ...
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Multi-physics and multi-scale methods used in nuclear reactor analysis
(2014)In an operating nuclear reactor core, various physical phenomena of different nature are interrelated. Multi-physics calculations that account for the interrelated nature of the neutronic and thermal-hydraulic phenomena ...
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Stress alleviation strategy in cancer treatment: Insights from a mathematical model
(2018)Tumors generate mechanical forces during growth and progression, which are able to compress blood and lymphatic vessels, reducing perfusion rates and creating hypoxia. Tumor vessels-while nourishing the tumor-are usually ...
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Structural modification. Part 1: Rotational receptances
(2005)The inverse problem of assigning natural frequencies and antiresonances by a modification to the stiffness, mass and damping of a structure is addressed. Very simple modifications such as the addition of masses and grounded ...
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Article
Recent advances in vacuum sciences and applications
(2014)Recent advances in vacuum sciences and applications are reviewed. Novel optical interferometer cavity devices enable pressure measurements with ppm accuracy. The innovative dynamic vacuum standard allows for pressure ...
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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, ...