Browsing Colecția instituțională by Title

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  • Sun system guidance of a group of photovoltaic panels 
    BOSTAN, Ion; DULGHERU, Valeriu; DUMITRESCU, Cătălin; CIOBANU, Radu; CIOBANU, Oleg (Technical University "Gheorghe Asachi" of Iași, 2018)
    The invention relates to the thermal power plants without fuel burning and CO2 production, namely plants for solar energy conversion into electrical energy. The photovoltaic station includes a panel of solar panels with ...
  • Sun system guidance of photovoltaic panels 
    BOSTAN, Ion; DULGHERU, Valeriu; BOSTAN, Viorel; DUMITRESCU, Cătălin; CIOBANU, Radu; CIOBANU, Oleg; COZMA, Ion (Technical University "Gheorghe Asachi" of Iași, 2017)
    The invention relates to the thermal power plants without fuel burning and CO2 production, namely to plants for solar energy conversion into electrical energy. The photovoltaic station include a group of panel with solar ...
  • Superconducting and normal properties of the set of Mo/Si superlattices with variable Si layer thickness 
    MIKHAILOV, M. Yu.; YUZEPHOVICH, O. I.; POKHILA, A. S.; BOMZE, Yu. V.; FOGEL, N. Ya.; DMITRENKO, I. M.; YULIN, S. A.; SIDORENKO, A. S.; MOLDOVAN, O. B.; BUCHSTAB, E. I. (American Institute of Physics, 1999)
    We report the results of the superconducting and kinetic parameter measurements (transition temperature Tc, parallel and perpendicular critical fields Hc2, resistivity in the normal state) on a set of Mo/Si superconducting ...
  • Superconducting and weak ferromagnetic features at interfaces of bicrystals of 3D topological insulator BI 1-XSB X 
    MUNTYANU, F. M.; ZALESKI, A. J.; ROGACKI, K.; CHISTOL, V. (Institutul de Fizică Aplicată, 2018)
    In this report we present the results of study of the magnetic and superconducting properties of bicrystals of 3D topological insulator (TI) Bi1-xSbx (0 ≤x ≤ 0.2) in temperature range 1.8-100K using Quantum Design SQUID ...
  • Superconducting crystallite interfaces with Tc up to 21 K in Bi and Bi-Sb bicrystals of inclination type 
    MUNTYANU, F. M.; GILEWSKI, A.; NENKOV, K.; ZALESKI, A.; CHISTOL, V. (Elsevier, 2008)
    Magnetic properties of high quality Bi and Bi1−x–Sbx (x≤0.07) bicrystals of inclination type were studied in the temperature range (1.8–30) K using a quantum design SQUID magnetometer. It is found that the crystallite ...
  • Superconducting features at Bi-Sb twisting crystallite interfaces 
    MUNTYANU, F. M.; GILEWSKI, A.; ZALESKI, A. J.; CHISTOL, V.; ROGACKI, K. (Institutul de Fizică Aplicată, 2016)
    We present the results of the study of quantum oscillations, magnetic and superconducting properties of the twisting bicrystals of 3D topological insulator Bi1-xSbx (0.07 < x < 0.15) at low temperatures and in magnetic ...
  • Superconducting Fractal Multilayers 
    SIDORENKO, A. S. (World Scientific Publishing Co Pte Ltd, 1997)
    The influence of fractal geometry on superconductivity has been studied for layered superconductors. Superconducting multilayers consisting of alternating Nb and Cu layers with fractal stacking sequence and fractal dimension ...
  • Superconducting properties of fractal Nb/Cu multilayers 
    SIDORENKO, A.; SÜRGERS, C.; TRAPPMANN, T.; LÖHNEYSEN, H. v. (American Physical Society, 1996)
    Multilayers of Nb and Cu with a fractal or periodic stacking sequence were prepared by electron-beam evaporation onto sapphire substrates. Their superconductivity was investigated by measurements of Tc and the temperature ...
  • Superconducting Triplet Proximity and Josephson Spin Valves 
    TAGIROV, L. R.; KUPRIYANOV, M. Y.; KUSHNIR, V. N.; SIDORENKO, A. (Springer Nature Switzerland, 2018)
    A heterostructure comprising several ferromagnetic and superconducting layers acquires functionality of managing the superconducting properties of a system applying external magnetic field. At non-collinear magnetic ...
  • Superconductivity and ferromagnetism in twisting Bi-Sb interfaces 
    MUNTYANU, F. M.; GILEWSKI, A.; ZALESKI, A. J.; CHISTOL, V.; ROGACKI, K. (Institutul de Fizică Aplicată, 2016)
    The hysteresis loops and temperature dependences of magnetic moment m(T) are studded in large disorientation angle (LDA) twisting interfaces of Bi1-xSbx (0 < x < 0. 2) alloys. They were found one superconducting transition ...
  • Superconductivity up to 36 K in nano-width crystallite interfaces of Bi1-x-Sbx(x≤0.2) alloys 
    MUNTYANU, F. M.; CHISTOL, V. (Institutul de Fizică Aplicată, 2010)
    Magnetic properties of high quality bicrystals (in some samples the Dingle temperature of charge carriers was even less than 1 K) and tricrystals of Bi1-x-Sbx(x ≤ 0.2) alloys were studied in the temperature range(1.8 -100) ...
  • Superconductor 3D nanoarchitectures 
    FOMIN, Vladimir M. (Technical University of Moldova, 2024)
    3D superconductor (SC) nanoarchitectures, with unconventional vortex configurations, are promising for the future efficient and multifunctional technologies. A topological transition between the vortex and phase-slip regimes ...
  • Superconductor-insulator transition in superconducting nanowires 
    ZAIKIN, Andrei D. (Technical University of Moldova, 2024)
    We investigate superconductor-insulator quantum phase transitions in ultrathin capacitively coupled superconducting nanowires with proliferating quantum phase slips. We derive a set of coupled Berezinskii-Kosterlitz-Thouless-like ...
  • Supercurrent reversal in Zeeman-split Josephson junctions 
    GOLUBOV, A.A.; SUZUKI, S.-I.; ASANO, Y. (Technical University of Moldova, 2024)
    We theoretically study the current-phase relation in a Josephson junction comprising the Zeeman-split superconductors (ZSs) and a normal metal (N). We show that at low temperatures the Josephson current in the∈ ZS/N/ZS ...
  • Superelastic lightweight carbon materials for piezoresistive sensors 
    PLEŞCO, Irina (Tehnica UTM, 2019)
    This article aims to give a comparative overview on carbonic materials of various geometries and compositions, which are developed for applications in production of strain and pressure sensors. We discuss the preparation ...
  • Superimposed diffraction gratings formed by e-beam recording in chalcogenide films 
    ANDRIESH, A. M.; AKIMOVA, E. A.; ENAKI, M. A.; SERGEEV, S. A.; TRIDUH, G. M. (Institutul de Fizică Aplicată al AŞM, 2012)
    It was established, that at low values of recording current the independent superimposition (without reciprocal effect) of crossed index gratings can be occurred. Contrary to this, in the case of the relief structures the ...
  • Superlensing with plane plates consisting of dielectric cylinders in glass envelopes 
    FOCA, E.; SERGENTU, V. V.; DASCHNER, F.; TIGINYNAU, I. M.; URSAKI, V. V.; KNÖCHEL, R.; FÖLL, H. (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2009)
    The approach of designing negative-refractive-index materials on the basis of dielectric rods with a gradient of the dielectric constant is tested experimentally. A triangular-lattice plane-parallel slab assembled from ...
  • Superposition of free and bound exciton emission spectra in ZnP2-D48 
    STAMOV, I. G.; SYRBU, N. N.; URSAKI, V. V.; IVANENCO, Yu. (Academy of Sciences of Moldova, 2011)
    Bound exciton lines are found in the luminescence spectra of Mn, Sn, Cd, and Sb doped tetragonal zinc diphosphide crystals at the temperature of 10 K. Zero phonon lines of bound and free exciton emission, as well as their ...
  • The superposition of one- and two-phonon absorption and radiation in TeO2 crystal 
    SYRBU, N. N.; CREŢU, R. V. (Elservier, 1996)
    Raman scattering and IR reflectivity for actual configuration have been investigated. The contours of reflectivity spectra rave been calculated. Phonon parameters have been determined. The temperature dependence of Raman ...
  • The superposition of the lattice radiation and reflectivity spectra of tetragonal TeO/sub 2/ crystals 
    SYRBU, N. N.; RADAUTSAN, S. I.; CRETU, R. V.; MUSHINSKII, V. P.; CEBOTARI, V. Z. (IEEE, 1995)
    The superposition of infrared reflectivity spectra end lattice radiation of TeO/sub 2/ crystals have been investigated. Both radiation spectra at high temperatures and absorption spectra in the two-phonon range for ...

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