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Honourary Staff (in alphabetical order) bensabra hakim (algeria), BORDEA MARIUS, chabour salem (algeria), gencang yang (china), R. S. HOUK (S.U.A.), I. IMRIŠ (TECHNICAL UNIVERSITY OF KOŠICE, SLOVAK REPUBLIC), puşici miho (Slovenia), roşescu gheorghe (grecia), roxana ruxandra (california), w.m. nicola (tri. state university angola, indiana, s.u.a.), xianqing you (china)
romanian metallurgical foundation Scientific publishing house editorial board : Prof. colan horia Ph. D., member of Romanian Academy of Technical Sciences Prof. Coşmeleaţă georgeta Ph. D. Prof. Elena drăgulănescu Ph. D., Catedra GDGI, Aerospatial Engineering Faculty, Bucharest Politechnical University Prof. Dumitrescu Constantin Ph. D., deputy member of Romanian Academy of Technical Science Prof. French David Ph. D., CSIRO Energy Technology, Australia Prof. Găluşcă Dan-Gelu Ph. D. Prof. Mihaela Grigore Ph. D., University of New South Wales, Sydney, Australia Prof. Lawson Cristopher Ph. D., Copenhague Technical Institute, Denmark Prof. Nicolae Avram Ph. D. Prof. Maria Nicolae Ph. D. Prof. doc. Oprea Florea Ph. D., member of Romanian Academy of Technical Sciences Prof. Veena Sahajwalla Ph. D., University of New South Wales, Sydney, Australia Prof. Sakurovs Richard Ph. D., CSIRO Energy Technology, Australia Prof. Salvo Luc Ph. D., Grenoble National Politechnical Institute, France Prof. Saiter Jean-Marc Ph. D., Rouen University, France Prof. Scorţea Costin Ph. D. Prof. Simiti Ioan Vida Ph. D. Prof. Sofroni Laurenţie Ph. D., member of Romanian Academy of Technical Sciences Prof. Şaban Rami Ph. D., Dean of Materials Science Faculty, Bucharest Politechnical University Prof. ŞTEFĂNESCU DORU Ph. D, Ohio State University Columbus, S.U.A. advisory board : Prof. bejan Mircea Ph. D Prof. cănănău nicolae Ph. D Prof. hepuţ teodor Ph. D Prof. Doina Răducanu Ph. D Prof. samoilă Corneliu Ph. D Prof. SOFONEA GALAgTION Ph. D Managing Director: Editor-in-chief: Professor Scorţea Costin Ph. D. Manager Scientific Publishing House F.M.R.: eng. Florentina Brânduşa Scorţea		Contents Issn 1582 – 2214 Ana-Maria Lazăr, Chaumont D., Courty C. Josse, Mesnier M., Lacroute Y., Gomez M. E., Zambrano G., Sacilotti M.: TiO2 micro and nanostructures growth by MOCVD process ……………………………………..…. 5 ALUPEI-COJOCARIU Ovidiu, SEMENESCU Augustin: Mathematic model used for determining the research potential in self-evaluation of participants on the european research Frame Program 7 (FP7) ………………...…. 11 Agop Maricel, VIZUREANU Petrică, M. Vasilica, Abacioaie D.: Hydrodynamic model of scale relativity theory for nanomaterials (I) …………………………... 18 Ciobanu Ioan, Monescu Vlad, Maşniţă Mihai: Research regarding the influence of the castings walls thickness over the solidification time ………………………………………….. 31 Lepădatu V. Gheorghe: Some considerations regarding the public debt service at the end of September 2006 service …………………. 42 ? FOSECO Turbostop system – reference list …I-II ? Press Release……....…..……............ III – VIII ? New books, published by romanian metallurgical foundation……………….………....….…..... IX - X

abstract

metalurgia International 2/2007

Key words: nanostructures Ana-Maria Lazăr, Chaumont D., Courty C. Josse, Mesnier M., Lacroute Y., Gomez M. E., Zambrano G., Sacilotti M.: TiO2 micro and nanostructures growth by MOCVD process Metalurgia International (vol. XII), no.2, 2007, p. 5 We present in this poster the preliminary results of the TiO2 nanostructures growth on the silicium substratum. We have utilized two different methods: VLS/ MOCVD method and MOCVD in the catalyst presence. In the case of VLS/ MOCVD method, the growth is catalyzed by metallic clusters layer or metallic oxides. In the case of MOCVD method, the catalyst is the ferrocene Fe(C5H5)2. The precursor for the TiO2 obtaining is the titan isopropoxide Ti(OC3H7)4. Key words: FP7, expert system, research potential, WEB based information system, Romanian research ALUPEI-COJOCARIU Ovidiu, SEMENESCU Augustin: Mathematic model used for determining the research potential in self-evaluation of participants on the european research Frame Program 7 (FP7) Metalurgia International (vol. XII), no.2, 2007, p. 11 This paper aims to introduce the mathematic model used on the development of a self-evaluation system of the research potential of units belonging to Romanian research area. The development of this concept forms the main stream activities of a project called “CAPABIL=>FP7” , funded by the Romanian Research Program CEEX 2005, third module. D.C.: 669.017.12 Agop Maricel, VIZUREANU Petrică, M. Vasilica, Abacioaie D.: Hydrodynamic model of scale relativity theory for nanomaterials (I) Metalurgia International (vol. XII), no.2, 2007, p. 18 The hydrodynamic model of the scale relativity

theory in the topological dimension D=2 is built. The generalized Schrödinger equation results as an irrotational movement of Navier-Stokes type fluids having an imaginary viscosity coefficient and simultaneously becomes wave-function and complex speed potential. Some abilities of the model on the wave-particle duality, tunneling effect and plasmoids genesis by laser ablation are analyzed. D.C.: 621.746.628 Ciobanu Ioan, Monescu Vlad, Maşniţă Mihai: Research regarding the influence of the castings walls thickness over the solidification time Metalurgia International (vol. XII), no.2, 2007, p. 31 It is presented the results of a research regarding the influence of the castings thickness over the castings solidification. The research was made by computer simulation of the solidification of a plates from grey cast iron with walls thickness between a = 6mm and a = 50mm. It was studied the influence of the castings thickness over the solidification time and over the temperature field from the casting and from the mould. It was verified the square root law. It was compared the results regarding the influence of the castings thickness over the solidification time obtained by computer simulation with those obtained by analytical calculation. D.C.: 669. Key words: public debt service, current account, cover degree, payment balance Lepădatu V. Gheorghe: Some considerations regarding the public debt service at the end of September 2006 service Metalurgia International (vol. XII), no.2, 2007, p. 42 Comparative statistical data regarding the current account of payment balance, during the period 1^st of January 2006 – 30^thof September 2006, as compared to the similar period of 2005. results indicate a positive trend during the year 2006.

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