Browsing Articole ştiinţifice by Title

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  • BOSTAN, Viorel; BOSTAN, Ion; RABEI, Ivan; GUTU, Marin; DULGHERU, Valeriu (Springer Nature Switzerland, 2020)
    Many Vertical Axis Wind Turbines (VAWTs) have blades defined by asymmetrical (cambered) airfoils. There can be two possibilities regarding the orientation of their camber in relation to the rotor’s axis: radially inward ...
  • BOSTAN, Viorel; BOSTAN, Ion; RABEI, Ivan; DULGHERU, Valeriu; CIUPERCA, Rodion (Springer International Publishing, 2019)
    The blade is the most important element of a wind turbine, as it is the component that largely governs the productivity and it is the main source of efficiency optimization. A blade is defined by the airfoil type. This ...
  • GUŢULEAC, Emilian; ŢURCANU, Iurie; GUŢULEAC, Emilia; ODOBESCU, Diana (Stefan cel Mare University of Suceava, Romania, 2006)
    This paper presents the timed Generalized Differential Petri Nets (GDPN) a class of Petri nets, that are accepted the negative-continuous place capacity, negative real values for continuous place marking and negative ...
  • BRANISTE, T.; TIGINYANU, I.; HORVATH, T.; RAEVSCHI, S.; CEBOTARI, S.; LUX, M.; HAVERICH, A.; HILFIKER, A. (Beilstein-Institut, 2016)
    Nanotechnology is a rapidly growing and promising field of interest in medicine; however, nanoparticle–cell interactions are not yet fully understood. The goal of this work was to examine the interaction between endothelial ...
  • SÎRBU, Tamara; ŢURCAN, Olga; MOLDOVAN, Cristina; TIMUȘ, Ion (Moldova State University, 2022)
    The aim of the research was to evaluate the viability and stability of aquatic fungi of biotechnological interest after lyophilization. The object of study was served 20 strains of aquatic fungi, isolated from the lake La ...
  • SÎRBU, Tamara; MOLDOVAN, Cristina; ȚURCAN, Olga (Consiliul Județean Bacău, 2022)
    Lyophilization is one of the safest and most durable methods of preservation of the viability and stability of the biological properties of microorganisms. Twenty strains of aquatic fungi, representatives of the genera: ...
  • BÎRSA, Maxim; BURȚEVA, Svetlana; CEBOTARI, Victoria (Moldova State University, 2022)
    Thus, freeze-drying of microbial strains is one of the most sustainable methods, but it requires the greatest manpower, special equipment and trained personnel. Thus, the purpose of the research was to evaluate the viability ...
  • SYRBU, N. N.; NEMERENCO, L. L.; COJOCARU, O. (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2002)
    In this work the vibrational and polariton optical spectra of the CdGa2S4 and CdAl2S4 crystals grown from vapor phase and by the Bridgman method have been investigated. The light scattering by polaritons excited of various ...
  • SYRBU, N. N.; BOGDANASH, M.; MOLDOVYAN, N. A. (Elservier, 1996)
    Infrared reflectivity spectra and Raman scattering of the ZnAl2S4 and CdIn2S4 crystals have been investigated. Reflectivity spectra contours were calculated and phonon parameters and dielectric constants were determined. ...
  • SYRBU, N. N.; BOGDANASH, M.; TEZLEVAN, V. E. (IEEE, 1996)
    In the present paper new results of Raman scattering of CuAl/sub 1-x/Ga/sub x/Se/sub 2/ crystals by the unpolarized light at 77 K are presented. IR reflectivity spectra of this solid solution have been investigated for ...
  • NEUMANN, H.; SOBOTTA, H.; RIEDE, V.; SYRBU, N. N.; RADAUTSAN, S. I. (WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim, 1984)
    Polarization-dependent infrared reflectivity spectra of CdGa2S4 are measured at 300 K in the wavenumber range from 180 to 500 cm−1. The analysis of the spectra yields three E and four B modes in this frequency range. The ...
  • GALLEGO-PARRA, S.; GOMIS, O.; VILAPLANA, R.; ORTIZ, H. M.; PÉREZ-GONZÁLEZ, E.; LUNA, R.; RODRÍGUEZ-HERNÁNDEZ, P.; MUÑOZ, A.; URSAKI, V. V.; TIGINYANU, I. M.; MANJÓN, F. J. (AIP Publishing LLC, 2019)
    Raman scattering measurements have been performed in cadmium digallium sulphide (CdGa2S4) with defect chalcopyrite structure up to 25 GPa in order to study its pressure-induced phase transitions. These measurements have ...
  • VILAPLANA, R.; ROBLEDILLO, M.; GOMIS, O.; SANS, J. A.; MANJÓN, F. J.; PÉREZ-GONZÁLEZ, E.; RODRÍGUEZ-HERNÁNDEZ, P.; MUÑOZ, A.; TIGINYANU, I. M.; URSAKI, V. V. (American Institute of Physics, 2013)
    In this work, we report on high-pressure Raman scattering measurements in mercury digallium sulfide (HgGa2S4) with defect chalcopyrite structure that have been complemented with lattice dynamics ab initio calculations. Our ...
  • MALCOCI, Iu.; BODNARIUC, I. (IOP Publishing, 2016)
    An ideal dynamical system should not generate any vibrations, because vibrations mean a loss of energy. Vibration in planetary precessional gear box occurs at bearings, gear wheels, misaligned shafts, imbalance rotating ...
  • MALCOCI, Iulian; BODNARIUC, Ion (Trans Tech Publications Ltd, 2015)
    An ideal dynamical system should not generate any vibrations, because vibrations mean a loss of energy. Vibration in planetary precessional gear box occurs at bearings, gear wheels, misaligned shafts, imbalance rotating ...
  • MANOLE, Tatiana (National Institute for Economic Research, 2015)
    In this article there are presented the views of the author, who has studied the implementation of the new system of budgeting administrative-territorial units in Riscani and Ocnita districts which have undergone piloting ...
  • URSU, Viorica (Universitatea Academiei de Ştiinţe a Moldovei, 2014)
    Cercetarea victimologică a „vinovăției” victimei reprezintă cheia de soluționare a problemei cauzalității criminalității și clarificării mecanismului comportamentului infracțional individual, fiind importantă, de asemenea, ...
  • URSU, Viorica; CHIRIAC, Natalia (Universitatea Academiei de Științe a Moldovei, 2017)
    În dreptului muncii, conceptul de vinovăție și formele sale practic nu au fost studiate și acest lucru nu putea să nu afecteze calitatea legislației muncii. T. Ivancova menționează că „este necesar de evidenţiat faptul, ...
  • ARPENTIN, Gheorghe; COLUN, Cristina; GUMIONAIA, Natalia (Institutul Științifico-Practic de Horticultură și Tehnologii Alimentare, 2014)
    In order to differentiate the red wines obtained from, „Cabernet Sauvignon” variety in terms of typicity and specificity, were studied the wines produced in three geographical regions of the Republic of Moldova („Codru”, ...
  • CASIAN, Anatolie (American Physical Society, 2010)
    The charge and energy transport in some highly conducting quasi-one-dimensional organic crystals is studied. Two electron-phonon interactions and scattering on impurity are considered. It is found that the Wiedemann-Franz ...

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