Finds and Results from the Swedish Cyprus Expedition: A Gender Perspective at the Medelhavsmuseet, 2005
G. Bumbac 11 , C. Ciornei 1 , Elena Daniela Lavric 1,2 , J. De Ruyck 2 ,. ... decades, the exergy... more G. Bumbac 11 , C. Ciornei 1 , Elena Daniela Lavric 1,2 , J. De Ruyck 2 ,. ... decades, the exergy was considered with increased attention as analysis tool, due to its intimate relationship with the capability to perform a useful task (Feng & Zhu, 1997; Kirova-Yordanova, 2004; Rosen ...
SGEM International Multidisciplinary Scientific GeoConference� EXPO Proceedings
Fish oils with a high content of polyunsaturated fatty acids (PUFAs) are gaining increasing inter... more Fish oils with a high content of polyunsaturated fatty acids (PUFAs) are gaining increasing interest in the food and nutraceutical industry, due to their important functional properties for human beings� health improvement. The most important PUFAs have at least two double bonds placed on the carbon chain. These include ?-linolenic acid (ALA), eicosapentaenoic acid (EPA) and docosahaxaneoic acid (DHA). Microencapsulation is a technique used to protect the bioactive compounds from oxidative damage, to ensure their controlled release and to activate the synergistic effect of the ingredients, if it exists. In this context, the microencapsulation process of fish oils rich in PUFAs using alginate was studied, in the presence and the absence of an ultrasonic (US) field. Both BoxBehnken design of experiment technique and the Response Surface Method were used, to investigate the influence of the process parameters and to optimize the operating conditions. The operating parameters under inve...
The synthesis of TiO2 was studied in an original hydrothermal process that uses triethanolamine t... more The synthesis of TiO2 was studied in an original hydrothermal process that uses triethanolamine titanium complex Ti(TeoaH)2 as a Ti precursor and triethanolamine (TeoaH3) as a shape controller to obtain bipyramidal anatase nanoparticles. Backed-up by experimental evidence, i.e., time profiles for Ti(IV) species concentrations together with crystal shape and particle size distributions measured by dynamic light scattering and electron microscopy, a mathematical model was built. The model includes chemical reactions responsible for TiO2 generation in solution and the subsequent anatase nucleation and crystal growth. The oriented attachment mechanism was adopted to explain the build-up of crystals with equilibrium anatase structure (Wulff structure) and time-varying shape factor. This complex mathematical model was solved writing and validating an in-house software using the Matlab (Natick, MA, USA) environment. The process was simulated for a batch time of 50 h, and the results, in terms of main species con...
Finds and Results from the Swedish Cyprus Expedition: A Gender Perspective at the Medelhavsmuseet, 2005
G. Bumbac 11 , C. Ciornei 1 , Elena Daniela Lavric 1,2 , J. De Ruyck 2 ,. ... decades, the exergy... more G. Bumbac 11 , C. Ciornei 1 , Elena Daniela Lavric 1,2 , J. De Ruyck 2 ,. ... decades, the exergy was considered with increased attention as analysis tool, due to its intimate relationship with the capability to perform a useful task (Feng & Zhu, 1997; Kirova-Yordanova, 2004; Rosen ...
SGEM International Multidisciplinary Scientific GeoConference� EXPO Proceedings
Fish oils with a high content of polyunsaturated fatty acids (PUFAs) are gaining increasing inter... more Fish oils with a high content of polyunsaturated fatty acids (PUFAs) are gaining increasing interest in the food and nutraceutical industry, due to their important functional properties for human beings� health improvement. The most important PUFAs have at least two double bonds placed on the carbon chain. These include ?-linolenic acid (ALA), eicosapentaenoic acid (EPA) and docosahaxaneoic acid (DHA). Microencapsulation is a technique used to protect the bioactive compounds from oxidative damage, to ensure their controlled release and to activate the synergistic effect of the ingredients, if it exists. In this context, the microencapsulation process of fish oils rich in PUFAs using alginate was studied, in the presence and the absence of an ultrasonic (US) field. Both BoxBehnken design of experiment technique and the Response Surface Method were used, to investigate the influence of the process parameters and to optimize the operating conditions. The operating parameters under inve...
The synthesis of TiO2 was studied in an original hydrothermal process that uses triethanolamine t... more The synthesis of TiO2 was studied in an original hydrothermal process that uses triethanolamine titanium complex Ti(TeoaH)2 as a Ti precursor and triethanolamine (TeoaH3) as a shape controller to obtain bipyramidal anatase nanoparticles. Backed-up by experimental evidence, i.e., time profiles for Ti(IV) species concentrations together with crystal shape and particle size distributions measured by dynamic light scattering and electron microscopy, a mathematical model was built. The model includes chemical reactions responsible for TiO2 generation in solution and the subsequent anatase nucleation and crystal growth. The oriented attachment mechanism was adopted to explain the build-up of crystals with equilibrium anatase structure (Wulff structure) and time-varying shape factor. This complex mathematical model was solved writing and validating an in-house software using the Matlab (Natick, MA, USA) environment. The process was simulated for a batch time of 50 h, and the results, in terms of main species con...
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Papers by Vasile Lavric