Browsing Articole ştiinţifice by Title

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  • TIGINYANU, I. M. (Institutul de Fizică Aplicată, AŞM, 2006)
    Photonic crystals represent periodic dielectric structures designed to control the flow of electromagnetic radiation. Photonic crystals can be viewed as a subclass of a larger family of material systems called metamaterials ...
  • TIGINYANU, I. M.; SARUA, A.; IRMER, G.; MONECKE, J.; HUBBARD, S. M.; PAVLIDIS, D.; VALIAEV, V. (American Physical Society, 2001)
    GaN columnar nanostructures fabricated by electrochemical dissolution of bulk material have been studied by micro-Raman spectroscopy. The anodization induces an increase in the intensity of Raman scattering accompanied by ...
  • SARUA, A.; MONECKE, J.; IRMER, G.; TIGINYANU, I. M.; GÄRTNER, G.; HARTNAGEL, H. L. (IOP Publishing, 2001)
    Porous GaP, InP and GaAs structures fabricated by MeV ion-implantation-assisted electrochemical etching were investigated by Raman and Fourier transform infrared spectroscopy. Fröhlich modes in the frequency gap between ...
  • IRMER, G.; MONAICO, E.; TIGINYANU, I. M.; GÄRTNER, G.; URSAKI, V. V.; KOLIBABA, G. V.; NEDEOGLO, D. D. (IOP Publishing, 2009)
    Arrays of parallel pores with a diameter of around 60 nm have been introduced by anodic etching in ZnSe single crystals with a free electron concentration of 4 × 1017 cm−3. Porosity-induced Fröhlich vibrational modes were ...
  • PETRASHKU, K. G.; RUSSU, S. S.; KHADZHI, P. I. (John Wiley & Sons, Inc., 1980)
    The single-quantum annihilation process of the biexciton as a whole at the inelastic collision of the biexciton with an exciton is studied. Analytic expressions for the spectral and temperature dependence of the transition ...
  • LENK, D.; MORARI, R.; ZDRAVKOV, V. I.; ULLRICH, A.; KHAYDUKOV, Yu; OBERMEIER, G.; MÜLLER, C.; SIDORENKO, A. S.; NIDDA von, H.-A. Krug; HORN, S.; TAGIROV, L. R.; TIDECKS, R. (American Physical Society, 2017)
    In the present work a superconducting Co/CoOx/Cu41Ni59/Nb/Cu41Ni59 nanoscale thin film heterostructure is investigated, which exhibits a superconducting transition temperature, Tc, depending on the history of magnetic field ...
  • SIDORENKO, Anatolie S. (Beilstein Institute for the Advancement of Chemical Sciences, Germany, 2020)
    Nanotechnology and functional nanostructures, exciting trends of the 21st century, are topics that have penetrated and influenced nearly all areas of human activity: from microelectronics to biology, from aerospace to ...
  • CHAI, G. Y.; LUPAN, O.; RUSU, E. V.; STRATAN, G. I.; URSAKI, V. V.; SONTEA, V.; KHALLAF, H.; CHOW, L. (ELSEVIER, 2012)
    A single ZnO microwire detector for the monitoring of natural gas species is described. Single-crystal ZnO microwires were synthesized using a carbothermal reduction vapor phase transport method. It was characterized by ...
  • LUPAN, Oleg; POSTICA, Vasile; ADELUNG, Rainer; LABAT, Frédéric; CIOFINI, Ilaria; SCHÜRMANN, Ulrich; KIENLE, Lorenz; CHOW, Lee; VIANA, Bruno; PAUPORTÉ, Thierry (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2018)
    A method for surface doping and functionalization of ZnO nanowires (NWs) with Pd (Pd/ZnO) in a one-step process is presented. The main advantage of this method is to combine the simultaneous growth, surface doping, and ...
  • MUNTEAN, Neli (Academia de Studii Economice a Moldovei, 2011)
    In this article there are described the risks functions and the factors that influence on risk. There is not a certain opinion about risks factors; it is too difficult to establish a unique criterion of risks factors ...
  • LEÓN, M.; LEVCENKO, S.; SYRBU, N. N.; NATEPROV, A.; TEZLEVAN, V.; MERINO, J. M.; ARUSHANOV, E. (WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim, 2006)
    Optical absorption spectra of CuIn5Se8 and CuGa3Se5 single crystals have been investigated. The energy gap E g for CuIn5Se8 (CuGa3Se5) was found to be varied from 1.27 (1.79) to 1.21 (1.71) eV in the temperature range ...
  • NEUMANN, H.; HÖRIG, W.; NOOKE, G.; SYRBU, N. N. (Elservier, 1988)
    Optical absorption spectra of PbGa2S4 are measured in the photon energy range from 2.0 to 3.2 eV and for temperatures between 32 and 300 K. PbGa2S4 is found to be an indirect-gap semiconductor with a gap energy of 2.84 eV ...
  • LOZOVANU, Ecaterina (Universitatea de Stat de Medicină şi Farmacie „Nicolae Testemiţanu“, 2013)
    The philosophical reflection of culture’s foundation is a prerequisite for the development of science. It is presented as a specific aspect of philosophical understanding of reality, in which new categorical structures ...
  • BOSTAN, Ina (Universitatea Academiei de Ştiinţe a Moldovei, 2017)
    Individul întotdeauna își duce existența în cadrul vieții sociale, iar viața socială cuprinde toate fenomenele care apar între oameni, în oricare moment al existenței lor. De aceea, activității umane îi sunt caracteristice ...
  • COJUHARI, E. P.; GARDNER, B. J. (Australian Mathematical Publishing Association Inc., 2021)
    Ryabukhin showed that there is a correspondence between elementary radical classes of rings and certain filters of ideals of the free ring on one generator, analogous to the Gabriel correspondence between torsion classes ...
  • COJOCARU, Victor; MARDARI, Vladimir (The Publishing House of the Romanian Academy, 2014)
    We propose a device for therapeutic hypothermia implemented with Peltier elements controlled by a microcontroller, operated from a guided user interface. The control is based on fuzzy logic and aims at keeping a low ...
  • COJOCARU, Victor; VRABII, Daniel (IEEE, 2015)
    We analyze a device designed to perform therapeutic hypothermia in the skull. This device is proposed for use in hospitals profile especially for rapid intervention crews. The cooling device uses Peltier elements that allow ...
  • CHILAT, Sergiu (Institute of Mathematics and Computer Science, ASM, 2014)
    This article presents a method for automation of the process of data analysis generated from Google Analytics, using fuzzy logic. After the method implementation, the user will get the most useful and suitable content ...
  • RUSU, Mariana; ZBANCIOC, Marius-Dan (Institutul de Matematică şi Informatică al AŞM, 2017)
    The sorting method contains a fuzzy system that classifies waste into three classes: dangerous (toxic, flammable, harmful to the environment), recyclable and undetermined. To increase the decision weight since some waste ...
  • ABABII, Victor; SUDACEVSCHI, Viorica; ALEXEI, Victoria; MELNIC, Radu; BORDIAN, Dimitrie; NISTIRIUC, Ana (IEEE, 2019)
    This paper presents the results of the research carried out in the development of Fuzzy sensor networks for navigation mobile robots in closed environments. Wi-Fi technology is used for locating and moving robots which ...

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