Τμήμα Μηχανικών Μηχανολογίας και Κατασκευαστικής / Department of Mechanical and Manufacturing Engineering: Recent submissions

Now showing items 721-740 of 1036

    • Article  

      Solid Stress Facilitates Fibroblasts Activation to Promote Pancreatic Cancer Cell Migration 

      Kalli, M.; Papageorgis, P.; Gkretsi, V.; Stylianopoulos, T. (2018)
      Pancreatic fibroblasts are continuously gaining ground as an important component of tumor microenvironment that dynamically interact with cancer cells to promote tumor progression. In addition, these tumor-infiltrated ...
    • Article  

      Semi-solid metal processing: “unlimited” flow velocity without turbulence in thin cast sections 

      Jorstad, J. L.; Alexandrou, Andreas N.; Mitsoulis, E. (2014)
      The objective of this presentation is to show and explain why semisolid slurries can fill thin sections at seemingly unlimited flow velocity
    • Article  

      Large eddy simulation of thermocline flow phenomena and mixing during discharging of an initially homogeneous or stratified storage tank 

      Kaloudis, E.; Grigoriadis, D. G. E.; Papanicolaou, E.; Panidis, T. (2014)
      This study investigates numerically the flow phenomena developing in the discharging process of a rectangular water tank used for thermal energy storage and how these affect the thermal mixing and the associated energy ...
    • Article  

      Characterisation and tribological evaluation of nitrogen-containing molybdenum-copper PVD metallic nanocomposite films 

      Joseph, M. C.; Tsotsos, C.; Baker, M. A.; Kench, P. J.; Rebholz, Claus; Matthews, A.; Leyland, A. (2005)
      This paper reports on the structural, mechanical and tribological properties of molybdenum-copper nanocomposite films 'doped' with small amounts of nitrogen, which contain either no nitride phase (i.e. the nitrogen is held ...
    • Article  

      Structure-Defined 3D Nanocomposite Polymer Networks: Versatile Heterogeneous Catalytic Platforms in Organic Synthesis 

      Kalogirou, A. S.; Achilleos, M.; Procopiou, C.; Vasile, E.; Koutentis, P. A.; Krasia-Christoforou, T. (2016)
      Colloidal polyvinylpyrrolidone-stabilized Pd nanoparticles were embedded within 1,2-bis(2-iodoethoxy)ethane (BIEE)-crosslinked poly(2-dimethylamino)ethyl methacrylate homopolymer networks with defined structural characteristics. ...
    • Article  

      Synthesis and structural and spectroscopic characterization of a complex between Co(II) and imino-bis(methylphosphonic acid): Gaining insight into biologically relevant metal-ion phosphonate interactions or looking at a new Co(II)-organophosphonate material? 

      Jankovics, H.; Daskalakis, M.; Raptopoulou, C. P.; Terzis, A.; Tangoulis, V.; Giapintzakis, John; Kiss, T.; Salifoglou, A. (2002)
      Cobalt is an essential metal ion involved in key biomolecules, regulating processes in human physiology. As a metal ion, Co(II) assumes forms, which are dictated by the nature of organic binders in biological fluids, and ...
    • Article  

      The role of mechanical forces in tumor growth and therapy 

      Jain, R. K.; Martin, J. D.; Stylianopoulos, T. (2014)
      Tumors generate physical forces during growth and progression. These physical forces are able to compress blood and lymphatic vessels, reducing perfusion rates and creating hypoxia. When exerted directly on cancer cells, ...
    • Conference Object  

      Fabrication and characterization of nanoscale heating sources ("nanoheaters") for nanomanufacturing 

      Jogdand, H.; Gulsoy, G.; Ando, T.; Chen, J.; Doumanidis, C. C.; Zhiyong, G.; Rebholz, Claus; Wong, P. (Affiliation: Dept. of Mechanical Engineering, University of Massachusetts Lowell, Lowell, MA, United StatesAffiliation: Dept. of Mechanical and Industrial Engineering, Northeastern University, Boston, MA, United StatesAffiliation: Dept. of Mechanical and Manufacturing Engineering, University of Cyprus, Nicosia, CyprusAffiliation: Dept. of Chemical Engineering, University of Massachusetts Lowell, One University Ave., Lowell, MA 0185, United StatesAffiliation: Dept. of Mechanical Engineering, Tufts University, Medford, MA, United StatesCorrespondence Address: Jogdand, H.Dept. of Mechanical Engineering, University of Massachusetts Lowell, Lowell, MA, United States, 2008)
      Nanoheater systems based on the exothermic reaction between aluminum and nickel were developed. Multilayered and powder-based heterostructures were fabricated and characterized, before and after ignition experiments, for ...
    • Conference Object  

      Initial assessment of the thermoelectric properties for the mixed system K2-xRbxBi8Se13 

      Ireland, J. R.; Kyratsi, Theodora; Kanatzidis, M. G.; Kannewurf, C. R. (Affiliation: Dept. of Elec. and Comp. Engineering, Northwestern University, Evanston, IL 60208-3118, United StatesCorrespondence Address: Ireland, J.R.Dept. of Elec. and Comp. Engineering, Northwestern University, Evanston, IL 60208-3118, United States, 2002)
      In previous studies we have investigated the thermoelectric properties of undoped and doped compositions of β-K2Bi8Se13. The attempt to substitute Rb for K resulted in a different structure type, but with potentially useful ...
    • Article  

      A2Bi8Se13 (A = Rb, Cs), CsBi3.67Se6, and BaBi2Se4: New ternary semiconducting bismuth selenides 

      Iordanidis, L.; Brazis, P. W.; Kyratsi, Theodora; Ireland, J.; Lane, M.; Kannewurf, C. R.; Chen, W.; Dyck, J. S.; Uher, C.; Ghelani, N. A.; Hogan, T.; Kanatzidis, M. G. (2001)
      Rb2Bi8Se13 (I), Cs2Bi8Se13 (II), CsBi3.67Se6 (III), and BaBi2Se4 (IV) were synthesized by direct combination reactions of the A/Se (A = Rb, Cs, Ba) and Bi2Se3 at ≥650 °C. Their structures were determined by single-crystal ...
    • Article  

      Delivering nanomedicine to solid tumors 

      Jain, R. K.; Stylianopoulos, T. (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 ...
    • Article  

      Effects of air embolism size and location on porcine hepatic microcirculation in machine perfusion 

      Izamis, Maria-Louisa; Efstathiades, Andreas; Keravnou, Christina; Georgiadou, Soteria; Martins, Paulo N.; AVERKIOU, MICHALAKIS A. (2014)
    • Article  

      Original Contribution: Dynamic Contrast-Enhanced Ultrasound of Slaughterhouse Porcine Livers in Machine Perfusion 

      Izamis, Maria-Louisa; Efstathiades, Andreas; Keravnou, Christina; Leen, Edward L.; AVERKIOU, MICHALAKIS A. (2014)
      The aim of this study was to enable investigations into novel imaging and surgical techniques by developing a readily accessible, versatile liver machine perfusion system. Slaughterhouse pig livers were used, and dynamic ...
    • Article  

      Dynamic contrast-enhanced ultrasound of slaughterhouse porcine livers in machine perfusion 

      Izamis, Maria-Louisa; Efstathiades, Andreas; Keravnou, Christina; Leen, Edward L.; AVERKIOU, MICHALAKIS A. (2014)
    • Article  

      Solid-state synthesis and thermoelectric properties of Sb-doped Mg 2Si materials 

      Ioannou, M.; Polymeris, G.; Hatzikraniotis, E.; Khan, A. U.; Paraskevopoulos, K. M.; Kyratsi, Theodora (2013)
      Sb-doped magnesium silicide compounds have been prepared through ball milling and solid-state reaction. Materials produced were near-stoichiometric. The structural modifications have been studied with powder x-ray diffraction. ...
    • Conference Object  

      Synthesis and thermoelectric properties of low-x Bi2Se 3-xS3 series 

      Iona, Ch; Hatzikraniotis, E.; Paraskevopoulos, K. M.; Kyratsi, Theodora (Affiliation: Department of Mechanical and Manufacturing Engineering, University of Cyprus, 1678, Nicosia, CyprusAffiliation: Department of Physics, Aristotle University of Thessaloniki, 54124, Thessaloniki, GreeceCorrespondence Address: Iona, Ch.Department of Mechanical and Manufacturing Engineering, University of Cyprus, 1678, Nicosia, Cyprus, 2010)
      Bi2Se3-xSx solid solutions, with low x values, were synthesized from melt. The solid solutions were studied in terms of phase purity using powder X-ray diffraction (PXRD) in order to find the maximum x value for the ...
    • Article  

      Fabrication of nanocrystalline Mg 2Si via ball milling process: Structural studies 

      Ioannou, M.; Hatzikraniotis, E.; Lioutas, C.; Hassapis, T.; Altantzis, T.; Paraskevopoulos, K. M.; Kyratsi, Theodora (2012)
      In this work, nanocrystalline Mg 2Si material was fabricated via wet ball milling process using n-hexane as process control agent. Milling parameters, with emphasis on milling time and ball size, and conditions were studied ...
    • Conference Object  

      Sintering process in ball-milled K2Bi8Se13 nano-composites 

      Ioannou, M.; Hatzikraniotis, E.; Lioutas, C.; Chrissafis, K.; Chung, D. Y.; Paraskevopoulos, K. M.; Kyratsi, Theodora (Affiliation: Department of Mechanical and Manufacturing Engineering, University of Cyprus, 1678 Nicosia, CyprusAffiliation: Department of Physics, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceAffiliation: Materials Science Division, Argonne National Laboratory, Argonne, IL 60439, United StatesCorrespondence Address: Ioannou, M.Department of Mechanical and Manufacturing Engineering, University of Cyprus, 1678 Nicosia, Cyprus, 2012)
      K2Bi8Se13 material has many attractive features for thermoelectric applications. Recently, K2Bi 8Se13 based nanocomposite materials, consisting of nano-crystalline, micro-crystalline and amorphous phases, have been fabricated ...
    • Article  

      Solid-state synthesis of Mg 2Si via short-duration ball-milling and low-temperature annealing 

      Ioannou, M.; Chrissafis, K.; Pavlidou, E.; Gascoin, F.; Kyratsi, Theodora (2013)
      In this work, a short duration ball-milling of elemental Mg and Si followed by a thermal treatment is suggested in order to synthesize magnesium silicide via solid-state reaction. The formation of magnesium silicide was ...
    • Article  

      Effect of silicon nitride/oxide on the structure and the thermal conductivity of CoSi nanocomposites 

      Ioannou, M.; Delimitis, A.; Symeou, E.; Giapintzakis, John; Kyratsi, Theodora (2017)
      In this work, the fabrication of nanocomposites with silicon nitride/oxide into the thermoelectric matrix of cobalt silicide is presented. The different concentrations of nano-Si3N4 were intentionally introduced by mechanical ...