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Browsing by Subject "Metals"

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    • Article  

      Analytic models of heterogenous magnetic fields for liquid metal flow simulations 

      Votyakov, E. V.; Kassinos, Stavros C.; Albets-Chico, X. (2009)
      A physically consistent approach is considered for defining an external magnetic field as needed in computational fluid dynamics problems involving magnetohydrodynamics (MHD). The approach results in simple analytical ...

    • Article  

      Assessment of long-term wastewater irrigation impacts on the soil geochemical properties and the bioaccumulation of heavy metals to the agricultural products 

      Christou, Anastasis; Eliadou, Elena; Michael, Costas; Hapeshi, E.; Fatta-kassinos, Despo (2014)
      An extensive field survey was employed for assessing the impacts of long-term wastewater irrigation of forage crops and orange orchards in three suburban agricultural areas in Cyprus (areas I, II, and III), as compared to ...

    • Article  

      Authenticity of the traditional Cypriot spirit "zivania" on the basis of metal content using a combination of coupled plasma spectroscopy and statistical analysis 

      Kokkinofta, Rebecca I.; Petrakis, Panos V.; Mavromoustakos, Thomas M.; Theocharis, Charis R. (2003)
      Sixty-eight alcoholic beverages ranging in alcoholic degree between 40 and 55 from different countries were analyzed for their 16 most abundant metal elements using inductively coupled plasma (ICP) spectroscopy. The results ...

    • Article  

      Competitive sorption of Cu(II) and Eu(III) ions on olive-cake carbon in aqueous solutions - A potentiometric study 

      Konstantinou, M.; Pashalidis, Ioannis (2010)
      The competitive sorption of Cu(II) and Eu(III) ions from aqueous solutions by olive-cake carbon, has been investigated by potentiometry at pH 6, I = 0.1 M NaClO4, 25°C and under normal atmospheric conditions. Evaluation ...

    • Article  

      Coordination Complexes of a Neutral 1,2,4-Benzotriazinyl Radical Ligand: Synthesis, Molecular and Electronic Structures, and Magnetic Properties 

      Morgan, I. S.; Mansikkamäki, Akseli; Zissimou, Georgia A.; Koutentis, Panayiotis Andreas; Rouzières, M.; Tuononen, H. M.; Clérac, R. (2015)
      A series of d-block metal complexes of the recently reported coordinating neutral radical ligand 1-phenyl-3-(pyrid-2-yl)-1,4-dihydro-1,2,4-benzotriazin-4-yl (1) was synthesized. The investigated systems contain the ...

    • Article  

      Cost-Effective Polymethacrylate-Based Electrospun Fluorescent Fibers toward Ammonia Sensing 

      Petropoulou, A.; Christodoulou, K.; Polydorou, C.; Krasia-Christoforou, T.; Riziotis, C. (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 ...

    • Article  

      Effects of the consistency of the fringing magnetic field on direct numerical simulations of liquid-metal flow 

      Albets-Chico, X.; Votyakov, E. V.; Radhakrishnan, H.; Kassinos, Stavros C. (2011)
      We investigate the effects of the consistency of strong fringing decreasing magnetic fields on numerical simulations of classical experimental data. Studies about fringing magnetic fields have attracted the attention of ...

    • Conference Object  

      FTIR Reflectivity spectra of Thermoelectric K2Sb 8Se13 crystals 

      Hatzikraniotis, E.; Hassapis, Th; Kyratsi, Theodora; Paraskevopoulos, K. M.; Kanatzidis, M. G. (Affiliation: Physics Department, Aristotle University of Thessaloniki, 54124 Thessaloniki, GreeceAffiliation: Department of Mechanical and Manufacturing Engineering, University of CyprusAffiliation: Department of Chemistry, Michigan State University, MI 48824, United StatesCorrespondence Address: Hatzikraniotis, E.Physics Department, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece, 2006)
      Investigations of ternary and quaternary compounds, Bi and Sb chalcogenides, have shown that several multinary compounds containing alkali metals present promising thermoelectric properties. In this work, the FTIR reflectivity ...

    • Article  

      Influence of oxychlorination treatments on the redox and oxygen storage and release properties of thermally aged Pd-Rh/CexZr1-xO 2/Al2O3 model three-way catalysts 

      Daley, R. A.; Christou, Stavroula Y.; Efstathiou, Angelos M.; Anderson, J. A. (2005)
      Model Pd-Rh/Al2O3 three-way catalysts with and without CexZr1-xO2 as oxygen storage component have been compared in their fresh, thermally aged and oxychlorinated treated surface states to determine the potential regenerating ...

    • Article  

      Interaction of metal complexes with G-quadruplex DNA 

      Georgiades, Savvas N.; Abd Karim, N. H.; Suntharalingam, K.; Vilar, R. (2010)
      [Figure Presented] Guanine-rich sequences of DNA can assemble into tetrastranded structures known as G-quadruplexes. It has been suggested that these secondary DNA structures could be involved in the regulation of several ...

    • Article  

      Interesting copper(ii)-assisted transformations of 2-acetylpyridine and 2-benzoylpyridine 

      Kitos, Alexandros A.; Efthymiou, Constantinos G.; Manos, Manolis J.; Tasiopoulos, Anastasios J.; Nastopoulos, Vassilios; Escuer, Albert; Perlepes, Spyros P. (2016)
      The reactions of various copper(ii) sources with 2-acetylpyridine, (py)(me)CO, and 2-benzoylpyridine, (py)(ph)CO, under strongly basic conditions have been studied and novel ligand transformations have been discovered. ...

    • Article  

      Magnetoresponsive polymer networks as adsorbents for the removal of U(VI) ions from aqueous media 

      Ilia, R.; Liatsou, I.; Savva, I.; Vasile, E.; Vekas, L.; Marinica, O.; Mpekris, F.; Pashalidis, I.; Krasia-Christoforou, T. (2017)
      Magnetoresponsive, methacrylate-based 3D polymer networks containing hydrophilic/thermoresponsive, hydrophilic/pH-responsive and hydrophobic/metal chelating functionalities and oleic acid-coated magnetite nanoparticles, ...

    • Article  

      Pb doping of In2O3 and their conversion to highly conductive PbS/In2S3-3xO3x nanowires with infra red emission 

      Zervos, Matthew; Othonos, Andreas S.; Gianetta, V.; Nassiopoulou, Androula Galiouna (2016)
      We have grown Pb doped In2O3 nanowires at 800°C which have the cubic bixbyite crystal structure of In2O3 and contain orthorhombic α-PbO. These had resistances up to ≈10 Ω and exhibited photoluminescence at 2.5 eV but we ...

    • Article  

      Pb doping of In2O3 and their conversion to highly conductive PbS/In2S3-3xO3x nanowires with infra red emission 

      Zervos, Matthew; Othonos, A.; Gianetta, V.; Nassiopoulou, A. G. (2016)
      We have grown Pb doped In2O3 nanowires at 800°C which have the cubic bixbyite crystal structure of In2O3 and contain orthorhombic α-PbO. These had resistances up to ≈10 Ω and exhibited photoluminescence at 2.5 eV but we ...

    • Article  

      Physical constraints on charge transport through bacterial nanowires 

      Polizzi, N. F.; Skourtis, Spiros S.; Beratan, David N. (2012)
      Extracellular appendages of the dissimilatory metal-reducing bacterium Shewanella oneidensis MR-1 were recently shown to sustain currents of 10 10 electrons per second over distances of 0.5 microns [El-Naggar et al., Proc. ...

    • Article  

      Radioactivity and metal concentrations in marine sediments associated with mining activities in Ierissos Gulf, North Aegean Sea, Greece 

      Pappa, Filothei K.; Tsabaris, Christos G.; Ioannidou, Alexandra; Patiris, Dionisis L.; Kaberi, Helen G.; Pashalidis, Ioannis; Eleftheriou, George; Androulakaki, Effrossyni G.; Vlastou, Roza (2016)
      Marine sediment samples were collected from Ierissos Gulf, N Aegean Sea, close to the coastal mining facilities. Measurements of radionuclide and metal concentrations, mineral composition and grain size distribution were ...

    • Article  

      Reactivation of an aged commercial three-way catalyst by oxalic and citric acid washing 

      Christou, Stavroula Y.; Birgersson, H.; Fierro, José Luis García; Efstathiou, Angelos M. (2006)
      The efficiency of dilute oxalic and citric acid solutions on improving the oxygen storage capacity (OSC) and catalytic activity of a severely aged (83 000 km) commercial three-way catalyst (TWC) has been investigated. ...

    • Article  

      Selfish routing in the presence of network uncertainty 

      Georgiou, Chryssis; Pavlides, Theophanis; Philippou, Anna (2009)
      We study the problem of selfish routing in the presence of incomplete network information. Our model consists of a number of users who wish to route their traffic on a network of m parallel links with the objective of ...

    • Article  

      Semi-interpenetrating polymer networks with predefined architecture for metal ion fluorescence monitoring 

      Christodoulou, Kyproula; Leontidis, Epameinondas; Achilleos, Mariliz; Polydorou, Christiana S.; Krasia‐Christoforou, Theodora (2016)
      The development of new synthetic approaches for the preparation of efficient 3D luminescent chemosensors for transition metal ions receives considerable attention nowadays, owing to the key role of the latter as elements ...

    • Article  

      Semi-interpenetrating polymer networks with predefined architecture for metal ion fluorescence monitoring 

      Christodoulou, K.; Leontidis, E.; Achilleos, M.; Polydorou, C.; Krasia-Christoforou, T. (2016)
      The development of new synthetic approaches for the preparation of efficient 3D luminescent chemosensors for transition metal ions receives considerable attention nowadays, owing to the key role of the latter as elements ...

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