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Brasov, Romania

Sukhmanov V.,Donetsk National University | Shatalov V.,Donetsk National University | Petrova J.,Donetsk National University | Birca A.,George Baritiu University | Gaceu L.,Transilvania University of Brasov
LWT - Food Science and Technology | Year: 2014

Producing of safer products by applying high pressure on biosystem, is a novel non-thermal technology with significant results in maintaining the natural characteristics of the food items. Modeling of the microorganism kinetics inactivation by the high pressure was determined and certificated by an experimental approach. It is established that the basic laws of the joint influence of the factors of high pressure, temperature and process time on microorganisms and vitamin C are reproduced in the framework of the linear kinetics. By choosing the values of the process parameters (pressure, temperature, duration of the process), the averaged thermodynamic characteristics of micro flora can be changed, as well as the value of the activation barrier of the biochemical reaction. Based on these results, working 40 min at the pressure 400 MPa, and temperature 300 K, the microorganism activity is minimum, and the vitamin C contain is preserved about 90 percent. © 2013 Elsevier Ltd. Source

Buculei A.,Stefan Cel Mare University of Suceava | Amariei S.,Stefan Cel Mare University of Suceava | Oroian M.,Stefan Cel Mare University of Suceava | Gutt G.,Stefan Cel Mare University of Suceava | And 2 more authors.
LWT - Food Science and Technology | Year: 2014

The aim of this study is to investigate the migration of heavy metals in meat can under different parameters (varnish, storage time, storage temperature, storage humidity and varnish width and porosity). The physicochemical and organoleptic properties of the meat can have been analyzed. The metal content (Cd, Pb, Cu, Fe, Zn and Sn) were determined by flame and graphite furnace atomic absorption spectrometry after microwave digestion. The organoleptic and physicochemical properties of the samples have not modified significantly during the experiments. The metals migration is not influenced significantly by the varnish type. The highest level of metals in food products was observed at 4 and 50 °C. The porosity influenced significantly (p < 0.05) the migration of metals while the varnish width influence is not a significant one. The migration modeling using 3rd grade polynomial model achieved models with high coefficients of regression (greater than 0.9858). © 2013 Elsevier Ltd. Source

Ratiu I.G.,George Baritiu University
Proceedings of the National Academy of Sciences India Section A - Physical Sciences | Year: 2011

The key problem in any decision-making system is to gather as much information as possible about the object or the phenomenon under study. In the case of the radar targets the frequency and angular information is integrated to form a radar image, which has high information content. A supperresolution technique Multiple Signal Classification (MUSIC 2D) is used in the paper in order to reconstruct the target image. A supervised self organizing neural network called SART (supervised ART) was developed to classify the images obtained in this way for eleven different scale reduced radar targets in an anechoic chamber. Source

Georgescu L.,George Baritiu University | Niculae A.D.,IPIP | Georgescu O.,Science GEXACOR SRL | Morosanu M.,Petroleum Gas University of Ploiesti
European Corrosion Congress 2010 - EUROCORR 2010 | Year: 2010

The study presents the corrosion behaviour of S235JR carbon steel, X6CrA113 ferritic stainless steel and X5CrNi18 - 10 and X6CrNiMOTi17 austenitic stainless steels as a function of temperature in heavy fuel oil, light and heavy vacuum distillate originating from the processing of naphthene base crude oil, after 40 days of testing. Corrosion speeds and mechanical properties alter as a function of the naphthenic environment's temperature. The increase of the corrosion process is approximately linear with the temperature, up to 350°C. At 200°C the corrosion rate has already high values for carbon steel. Source

Danis A.,George Baritiu University | Parv L.,Transilvania University of Brasov
International Conference on Development, Energy, Environment, Economics - Proceedings | Year: 2010

The article deals with aspects regarding external capital investments in contemporary times. The importance of those investments is due to the fact that they produce important training effects not only for the economy of the host country, but for the balance of payments too, promoting exports. The analyzed period was 1960-2008, the necessary information being extracted from The World Investment Reports published by UNCTAD. At the same time the article deals with some perspectives regarding FDI. Source

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