No. 5, Mai 2008

Tome 53, No. 5, Mai 2008

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1. Maria BRUMĂ

Aromatic polyoxadiazoles with silicon in the main chain.

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Key words: polyoxadizoles, diphenylsilylene groups, high thermal stability, thin films, blue photoluminescence

2. Elisabeta-Cristina ANI and Paul Şerban AGACHI

Prediction of the behaviour of a hydrogen-oxygen PEM fuel cell based on a simplified model.

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Key words: fuel cells behaviour, hydrogen-oxygen PEM fuel cells, fuel cells transient behaviour, fuel cells mathematical model

3. Cristina STOICESCU, Olga IULIAN and Florinela SÎRBU

Equilibrium experimental data in ternary system containing water + 1-propanol + 1-butanol, 1-pentanol or 1-hexanol.

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Key words: liquid-liquid equilibria, water + n-alcohol ternary systems, cloud-point method

4. Iozsef JUHASZ, Ion CONSTANTIN, Vasile HOTEA, Elena POP and Mihaela PODARIU

Researches on the electrolyte purification and the useful elements recovery in the copper electrolytic
refining process

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Key words: copper, stibium, arsenium, electrolytic refining

5. Maria CIOROI

5-hydroxymethylfurfural – a possible indicator in the preservation abilities of the thermally processed food.

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Key words: 5-hydroxymethilfurfural (5-HMF), glucose-lysine model system, Maillard reaction, HPLC method

6. Gheorghiţa MITRAN, Ioan-Cezar MARCU, Adriana URDĂ and Ioan SĂNDULESCU

Oxidative dehydrogenation of isobutane over V-Mo-(Ni)-O catalysts.

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Key words: isobutane, oxidative dehydrogenation, isobutene, molybdenum-vanadium mixed oxides, nickel

7. Gheorghiţa MITRAN, Ioan-Cezar MARCU, Mihaela FLOREA and Ioan SĂNDULESCU

Mo-V-M-O (M = Ni, Cu, Zn, Sb, Ta) mixed metal oxides prepared by solid-solid reactions for oxidative dehydrogenation of isobutane.

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Key words: modified molybdenum-vanadium mixed oxides, isobutane, oxidative dehydrogenation

8. Ştefan DIMA, Romică CREŢU and Traian FLOREA

Emulsification of vegetable oils with nonionic surfactants and polypeptides.

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Key words: emulsification, surfactants, interfacial surface, emulsifying activity index

9. Rodica LIPSA, Nita TUDORACHI and Cornelia VASILE

Poly(vinyl alcohol)/poly(lactic acid) blends biodegradable films doped with colloidal silver.

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Key words: poly(vinyl alcohol)/poly(lactic acid) blend, biodegradable films, colloidal silver nanoparticles

10. Adriana ISVORAN, Eudald VILASECA, Laura UNIPAN, Josep-Lluis GARCÉS and Francesc MAS

Computational study of diffusion in cellular twodimensional crowed maedia modeled as mixtures of mobile and immobile obstacles.

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