Πλοήγηση ανά Συγγραφέα "Papapolymerou, G."
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Characterization of trapped hydrogen in exfoliation corroded aluminium alloy 2024
Charitidou, E.; Papapolymerou, G.; Haidemenopoulos, G. N.; Hasiotis, N.; Bontozoglou, V. (1999) -
Decolorization and degradation of reactive azo dyes via heterogeneous photocatalytic processes
Soutsas, K.; Karayannis, V.; Poulios, I.; Riga, A.; Ntampegliotis, K.; Spiliotis, X.; Papapolymerou, G. (2010)Reactive dyes are extensively used in textile industry in the last years due to their superior performance, but they are environmentally hazardous and difficult to treat effectively by classical methods. In the present ... -
Decolorization kinetics of Procion H-exl dyes from textile dyeing using Fenton-like reactions
Ntampegliotis, K.; Riga, A.; Karayannis, V.; Bontozoglou, V.; Papapolymerou, G. (2006)The decolorization kinetics of three commercially used Procion H-exl dyes was studied using a Fenton-like reagent. The effect of the major system parameters (pH, concentration of H2O2 and Fe3+ and initial dye concentration) ... -
Decomposition of NH3 on Pd and Ir - Comparison with Pt and Rh
Papapolymerou, G.; Bontozoglou, V. (1997)The unimolecular decompositions of NH3 on polycrystalline wires and foils of Pd and Ir are examined and compared with the corresponding ones on Pt and Ph. The reactions were carried out in a differential flow reactor, at ... -
Effect of system parameters and of inorganic salts on the decolorization and degradation of Procion H-exl dyes. Comparison of H2O2/UV, Fenton, UV/Fenton, TiO2/UV and TiO2/UV/H2O2 processes
Riga, A.; Soutsas, K.; Ntampegliotis, K.; Karayannis, V.; Papapolymerou, G. (2007)Reactive dyes are extensively used in the last years due to their superior performance, but they are environmentally hazardous. In the present work, the decolorization and degradation of commercial reactive azo dyes (Procion ... -
Hydrogen absorption into aluminum alloy 2024-T3 during exfoliation and alternate immersion testing
Haidemenopoulos, G. N.; Hassiotis, N.; Papapolymerou, G.; Bontozoglou, V. (1998)Exfoliation and alternate immersion corrosion were investigated in Al alloy 2024-T3 (UNS A92024) uptake during exposure and to correlate it with corrosion characterization. Characterization involved determination of weight ... -
Laminar film flow down a wavy incline
Bontozoglou, V.; Papapolymerou, G. (1997)Laminar how of a liquid, down an inclined wall with sinusoidal corrugations, is considered. A linear analysis, valid for small-amplitude disturbances but arbitrary wavelength and Re number, leads to an Orr-Sommerfeld type ... -
Wall-triggered interfacial resonance in laminar gas-liquid flow
Bontozoglou, V.; Papapolymerou, G. (1998)Laminar gas-liquid flow through a channel with corrugated bottom, driven by a combination of gravity and pressure drop, is considered. A linear analysis, valid for small-amplitude disturbances but arbitrary wavelength and ...