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

Now showing items 81-100 of 1036

    • Article  

      Engineered 3D Microvascular Networks for the Study of Ultrasound-Microbubble-Mediated Drug Delivery 

      Juang, Eric K.; De Cock, Ine; Keravnou, Christina; Gallagher, Madison K.; Keller, Sara B.; Zheng, Ying; Averkiou, Michalakis (2019)
      Localized and targeted drug delivery can be achieved by the combined action of ultrasound and microbubbles on the tumor microenvironment, likely through sonoporation and other therapeutic mechanisms that are not well ...
    • Article  

      Differentiation of Vascular Characteristics Using Contrast-Enhanced Ultrasound Imaging 

      Butler, Mairead; Perperidis, Antonios; Zahra, Jean-Luc Matteo; Silva, Nadia; Averkiou, Michalakis; Duncan, W. Colin; McNeilly, Alan; Sboros, Vassilis (2019)
      Ultrasound contrast imaging has been used to assess tumour growth and regression by assessing the flow through the macro- and micro-vasculature. Our aim was to differentiate the blood kinetics of vessels such as veins, ...
    • Article  

      Direct Evidence of Lithium Ion Migration in Resistive Switching of Lithium Cobalt Oxide Nanobatteries 

      Nguyen, Van Son; Mai, Van Huy; Senzier, Pascale Auban; Pasquier, Claude; Wang, Kang; Rozenberg, Marcelo J.; Brun, Nathalie; March, Katia; Jomard, François; Giapintzakis, John; Mihailescu, Cristian N.; Kyriakides, Evripides; Nukala, Pavan; Maroutian, Thomas; Agnus, Guillaume; Lecoeur, Philippe; Matzen, Silvia; Aubert, Pascal; Franger, Sylvain; Salot, Raphaël; Albouy, Pierre-Antoine; Alamarguy, David; Dkhil, Brahim; Chrétien, Pascal; Schneegans, Olivier (2018)
      Lithium cobalt oxide nanobatteries offer exciting prospects in the field of nonvolatile memories and neuromorphic circuits. However, the precise underlying resistive switching (RS) mechanism remains a matter of debate in ...
    • Article  

      Enhanced thermoelectric properties in vacuum-annealed Bi0.5Sb1.5Te3 thin films fabricated using pulsed laser deposition 

      Symeou, E.; Nicolaou, Ch.; Kyratsi, Theodora; Giapintzakis, John (2019)
      Localized cooling in microelectronics and nanoelectronics as well as energy autonomy in applications such as wireless sensor networks and wearable electronics could be well served by thin-film thermoelectric devices ...
    • Article  

      Thermoelectric properties of strained, lightly-doped La1–x­SrxCoO3 thin films 

      Viskadourakis, Z.; Pervolaraki, M.; Athanasopoulos, G. I.; Giapintzakis, John (2019)
      We report on the thermoelectric properties of strained, highly-oriented, lightly-doped La1–xSrxCoO3 thin films, grown on MgO (100) substrates by pulsed laser deposition. The large lattice mismatch (∼9%), along with the ...
    • Article  

      Ambiguous Role of Growth-Induced Defects on the Semiconductor-to-Metal Characteristics in Epitaxial VO2/TiO2 Thin Films 

      Mihailescu, Cristian N.; Symeou, Elli; Svoukis, Efthymios; Negrea, Raluca F.; Ghica, Corneliu; Teodorescu, Valentin; Tanase, Liviu C.; Negrila, Catalin; Giapintzakis, John (2018)
      Controlling the semiconductor-to-metal transition temperature in epitaxial VO2 thin films remains an unresolved question both at the fundamental as well as the application level. Within the scope of this work, the effects ...
    • Article  

      Transport properties of 3D printed polymer nanocomposites for potential thermoelectric applications 

      Viskadourakis, Z.; Perrakis, G.; Symeou, E.; Giapintzakis, John; Kenanakis, G. (2019)
      We report the transport and thermoelectric properties of three-dimensional printed samples, which are composed by polymer nanocomposites. For the purposes of the current study, the well-known fused deposition modeling ...
    • Article  

      Low Temperature Synthesis as a Route for Highly Thermoelectric Efficient Na-Doped PbTe 

      Papageorgiou, Chryssi; Delimitis, Andreas; Symeou, Elli; Giapintzakis, Ioannis; Kyratsi, Theodora (2018)
      In this work, Na-doped PbTe is synthesized through a low temperature synthesis technique. This method provides highly efficient p-type PbTe using a synthesis temperature much lower than the PbTe melting point and as low ...
    • Article  

      Thermoelectric Properties of Bi-Doped Mg2Si0.6Sn0.4 Solid Solutions Synthesized by Two-Step Low Temperature Reaction Combined with Hot Pressing 

      Polymeris, George S.; Vlachos, Nikolaos; Symeou, Elli; Kyratsi, Theodora (2018)
      The goal of this study is to investigate the influence of the amount of Bi doping on the microstructure and thermoelectric properties of the Mg2Si0.60Sn0.4 material studied by X-ray diffraction, scanning electron microscopy, ...
    • Article  

      The Initial Stage in Oxidation of ZrNiSn (Half Heusler) Alloy by Oxygen 

      Appel, Oshrat; Breuer, Gil; Cohen, Shai; Beeri, Ofer; Kyratsi, Theodora; Gelbstein, Yaniv; Zalkind, Shimon (2019)
      The MNiSn (M = Ti
    • Article  

      Carbon sequestration via enhanced weathering of peridotites and basalts in seawater 

      Rigopoulos, Ioannis; Harrison, Anna L.; Delimitis, Andreas; Ioannou, Ioannis; Efstathiou, Angelos M.; Kyratsi, Theodora; Oelkers, Eric H. (2018)
      Enhanced weathering of mafic and ultramafic rocks has been suggested as a carbon sequestration strategy for the mitigation of climate change. This study was designed to assess the potential drawdown of CO2 directly from ...
    • Article  

      Materials for Energy Harvesting 

      Diplas, Spyros; Kyratsi, Theodora; Sun, Jianwu; Pirriera, Monica Della; Ulyashin, Alexander G. (2018)
    • Article  

      Recycling Si-kerf from photovoltaics: A very promising route to thermoelectrics 

      Mesaritis, G.; Symeou, E.; Delimitis, A.; Oikonomidis, S.; Jaegle, M.; Tarantik, K.; Nicolaou, Ch.; Kyratsi, Theodora (2019)
      Large scale photovoltaic technology require Si wafers and cutting process has the significant disadvantage of disposing typically more than 50% of high purity material as waste kerf. Recycling silicon kerf is of increasing ...
    • Article  

      Theory-guided metal-decoration of nanoporous carbon for hydrogen storage applications 

      Holec, David; Kostoglou, Nikolaos; Tampaxis, Christos; Babic, Biljana; Mitterer, Christian; Rebholz, Claus (2018)
      The current paper presents a combined ab initio and experimental study of H2 adsorption on carbon. Adsorption energetics of a H2 molecule on pristine graphene were obtained for various molecule orientations, showing that ...
    • Article  

      Novel combustion synthesis of carbon foam‑aluminum fluoride nanocomposite materials 

      Kostoglou, Nikolaos; Emre Gunduz, I.; Isik, Tugba; Ortalan, Volkan; Constantinides, Georgios; Kontos, Athanassios G.; Steriotis, Theodore; Ryzhkov, Vladislav; Bousser, Etienne; Matthews, Allan; Doumanidis, Charalabos; Mitterer, Christian; Rebholz, Claus (2018)
      The facile, rapid and bulk production of composite materials consisting of carbon nanostructures doped with metal-based compounds has been a significant challenge for various research areas where such types of materials ...
    • Article  

      Bimetallic diffusion modeling and temperature regulation during ball milling 

      Aureli, Matteo; Doumanidis, Constantine C.; Gunduz, I. E.; Hussien, Aseel Gamal Suliman; Liao, Yiliang; Kostoglou, Nikolaos; Rebholz, Claus; Doumanidis, Charalabos C. (2018)
      This work establishes a computationally efficient model of temperature and diffusion dynamics in ball milled bimetallic Ni-Al particulates. Mechanical contact conditions between adjacent bimetallic domains and temperature ...
    • Article  

      High thermoelectric performance of Bi2-xSbxTe3 bulk alloys prepared from non-nanostructured starting powders 

      Symeou, E.; Nicolaou, Ch.; Delimitis, A.; Androulakis, J.; Kyratsi, Theodora; Giapintzakis, John (2019)
      In this work, hot press and hot deformation were applied to p-type Bi2-xSbxTe3 (x = 1.5-1.8) starting powders that have not undergone nanostructuring processing. The effects of hot pressing and hot deformation, as well ...
    • Article  

      Nanostructured Fe-Ni Sulfide: A Multifunctional Material for Energy Generation and Storage 

      Zhao, Chen; Zhang, Chunyang; Bhoyate, Sanket; Kahol, Pawan K.; Kostoglou, Nikolaos; Mitterer, Christian; Hinder, Steve; Baker, Mark; Constantinides, Georgios; Polychronopoulou, Kyriaki; Rebholz, Claus; Gupta, Ram K. (2019)
      Multifunctional materials for energy conversion and storage could act as a key solution for growing energy needs. In this study, we synthesized nanoflower-shaped iron-nickel sulfide (FeNiS) over a nickel foam (NF) substrate ...
    • Article  

      Needle grass array of nanostructured nickel cobalt sulfide electrode for clean energy generation 

      Zequine, Camila; Bhoyate, Sanket; Siam, Khamis; Kahol, Pawan K.; Kostoglou, Nikolaos; Mitterer, Christian; Hinder, Steven J.; Baker, Mark A.; Constantinides, Georgios; Rebholz, Claus; Gupta, Gautam; Li, Xianglin; Gupta, Ram K. (2018)
      Significant efforts have been focused on the search of earth-abundant elements to solve growing energy issues and to provide bifunctional behavior for both hydrogen and oxygen evolution reaction. Mixed transition metals ...
    • Article  

      Thermostructural observation and adaptive control of fractal structure in ball-milled materials 

      Aureli, Matteo; Alzaabi, Abdelaziz Saeed Mohamed; Hussien, Aseel Gamal Suliman; Doumanidis, Constantine C.; Jaffar, Syed Murtaza; Gunduz, I. E.; Rebholz, Claus; Kostoglou, Nikolaos; Liao, Yiliang; Doumanidis, Charalabos C. (2018)
      This research introduces dynamic modeling and real-time control of fractal structure in particulate materials fabricated by the ball milling process, specifically addressing challenges of unavailable real-time non-destructive ...