IRTUM – Institutional Repository of the Technical University of Moldova

Browsing Articole din publicaţii internaţionale by Title

Browsing Articole din publicaţii internaţionale by Title

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  • Liquid-phase epitaxy of AlGaAs heterostructures on profiled substrates 
    ANDREYEV, V. M.; EGOROV, V. V.; SYRBU, A. V.; TROFIM, V. G.; YAKOVLEV, V. P. (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 1980)
    A method of fabrication of planar local structures using the selective epitaxial growth of GaAs and AIGaAs layers from liquid phase on profiled GaAs substrates was developed. The planar regrowth of the recesses formed in ...
  • Lithium-Air Batteries 
    BĂJENESCU, Titu-Marius I. (Electra Publishing House, 2018)
    Batteries with high specific energy densities increasingly attract attention as potential energy sources for electric vehicles (EV). Lithium-air batteries are the most promising system because of their theoretical specific ...
  • lntraband and interband relaxation of excitonic polaritons 
    PEVTSOV, A. B.; SEL'KIN, A. V.; SYRBU, N. N.; URNANETS, A. G. (Russian Academy of Sciences, 1985)
    A well-defined doublet structure due to polariton emission has been found in the spectra of resonance exciton luminescence emitted by the black modification of ZnP, crystals at T = 2 K. The shape of the spectra is analyzed ...
  • Load resistance calculation based on an invariant input-output property of unstable communication line using a neural network with irregular steps of training data 
    PENIN, Alexander; SIDORENKO, Anatolie (Research Square, Preprint Platform, 2023)
    The calculation of a resistive sensor is considered as the load of an unstable communication line using a neural network. In the corresponding approximation or regression problem, the feedforward neural network is trained ...
  • Loading rate dependent relaxation under indentation of borophosphate glass 
    SHIKIMAKA, O.; PYRTSAC, C.; BARBOS, Z.; SAVA, B. A.; BOROICA, L.; ELISA, M. (Institutul de Fizică Aplicată al AŞM, 2018)
    The plasticity of glasses under compressive and shear stresses is governed by 2 main mechanisms: densification and shear flow. The relative contribution of each of these mechanisms depends on the glass structure and its ...
  • Local Nonlinearities of ZnO Nanostructures 
    SHVIRKOV, K.; KEDRYAVTSEV, A.; LAVROV, S.; SHERSTYUK, N. E.; MISHINA, E. D.; RUSU, E.; KULYUK, L. (EMW Publishing, 2012)
    The results of two-photon luminescence studies of zinc oxide (ZnO) microstructures consisting of microrods and microplanes are presented in this paper. When ZnO microstructure is excited by a femtosecond laser with a ...
  • Local yeasts isolated from Cimișlia wine center as a winemaking perspective of the Republic of Moldova 
    COVACI, Ecaterina ("Alma Mater" Publishing House, Bacau, 2023)
    The purpose of this paper relies on the quantification and selection of indigenous flora from the Ștefan Vodă wine-growing region in order to produce experimental dry white and red wines. For scientific purposes, the study ...
  • Localized Synthesis of Iron Oxide Nanowires and Fabrication of High Performance Nanosensors Based on a Single Fe2O3 Nanowire 
    LUPAN, Oleg; POSTICA, Vasile; WOLFF, Niklas; POLONSKYI, Oleksandr; DUPPEL, Viola; KAIDAS, Victor; LAZARI, Eugen; ABABII, Nicolai; FAUPEL, Franz; KIENLE, Lorenz; ADELUNG, Rainer (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2017)
    A composed morphology of iron oxide microstructures covered with very thin nanowires (NWs) with diameter of 15–50 nm has been presented. By oxidizing metallic Fe microparticles at 255 °C for 12 and 24 h, dense iron oxide ...
  • The longitudinal magnetoresistance and features of Shubnikov de Haas oscillations in Bi 
    PARA, G. I. (Institutul de Fizică Aplicată, 2012)
    The influence of anisotropic deformation on the Fermi surface topology change in quantum wires of bismuth has been studied. The Bi wires with a diameter of 50 nm were obtained by casting from the liquid phase by Ulitovskii ...
  • Looking for (re)defining university autonomy 
    COTELNIC, Ala; NICULITA, Angela; TODOS, Petru; TURCAN, Romeo; BUGAIAN, Larisa; POJAR, Daniela (Ştefan cel Mare University of Suceava, Romania, 2015)
    The article presents a comparative analysis of the institutional university autonomy of the following EU member states: Denmark, Lithuania, Romania, Scotland and Sweden. Today we are witnessing the restructuring of various ...
  • Low noise 89 GHz detector module for MetOp-SG 
    HOEFLE, Matthias; COJOCARI, Oleg; SOBORNYTSKYY, Mykola; JANKOWSKI, Andrzej; OPREA, Ion; PENIRSCHKE, Andreas; JAKOBY, Rolf; DECOOPMAN, Thibaut; PERICHAUD, Marie-Genevieve; PIIRONEN, Petri (IEEE, 2015)
    Presented is an 89 GHz waveguide coupled direct detector based on low-barrier Schottky diodes. The design aims for signal-to-noise ratio (SNR) values above 35 dB within 6 dB input power dynamic, with significant white and ...
  • Low powered, tunable and ultra-light aerographite sensor for climate relevant gas monitoring 
    LUPAN, O.; POSTICA, V.; MECKLENBURG, M.; SCHULTE, K.; MISHRA, Y. K.; FIEDLER, B.; ADELUNG, R. (The Royal Society of Chemistry, 2016)
    Increasing atmospheric CO2 gas pollution and emergence of new types of green energy sources require continuous environmental monitoring. In this context, fast, efficient, light, robust, and reliable gas sensors that can ...
  • Low temperature preparation of Ag-doped ZnO nanowire arrays for sensor and light-emitting diode applications 
    LUPAN, O.; VIANA, B.; CRETU, V.; POSTICA, V.; ADELUNG, R.; PAUPORTÉ, T. (SPIE, Society of Photo-Optical Instrumentation Engineers, 2016)
    Transition metal doped-oxide semiconductor nanostructures are important to achieve enhanced and new properties for advanced applications. We describe the low temperature preparation of ZnO:Ag nanowire/nanorod (NW/NR) arrays ...
  • Low-Dimensional Organic Crystal Tetrathiotetracene–Iodide as Thermoelectric Material: Reality and Prospects 
    CASIAN, Anatolie; STOCKHOLM, John G.; DUSCIAC, Viorel; NICIC, Veaceslav (American Scientific Publishers, 2009)
    It is explained the strong dependence of electrical conductivity and very weak dependence of thermopower on crystal purity observed experimentally in ordinary quasi-one-dimensional organic crystals of tetrathiotetracene–iodide, ...
  • Low-Temperature Growth of ZnO Nanowire Arrays on p-Silicon (111) for Visible-Light-Emitting Diode Fabrication 
    LUPAN, O.; PAUPORTE, T.; VIANA, B. (American Chemical Society, 2010)
    We report on the successful growth of homogeneous and well-covering ZnO nanowire arrays at a low temperature (90 °C) directly on a p-type Si(111) wafer by an electrochemical method. The wires were self-standing and vertically ...
  • Low-temperature magnetic and thermal properties of CePd2In in magnetic fields 
    MOCK, S.; PIETRUS, T.; SIDORENKO, A.; VOLLMER, R.; LÖHNEYSEN, H. v. (Springer Nature Switzerland, 1996)
    A detailed study of the low-temperature magnetization M and specific heat C of CePd2In is reported. For B ≈ 0, M and C show maxima at TN≈ 1.25 K indicating an antiferromagnetic phase transition as observed previously. In ...
  • Low-Temperature Preparation of Ag-Doped ZnO Nanowire Arrays, DFT Study, and Application to Light-Emitting Diode 
    PAUPORTÉ, Thierry; LUPAN, Oleg; ZHANG, Jie; TUGSUZ, Tugba; CIOFINI, Ilaria; LABAT, Frédéric; VIANA, Bruno (American Chemical Society, 2015)
    Doping ZnO nanowires (NWs) by group IB elements is an important challenge for integrating nanostructures into functional devices with better and tuned performances. The growth of Ag-doped ZnO NWs by electrodeposition at ...
  • Low-temperature sintering of highly conductive ZnO:Ga:Cl ceramics by means of chemical vapor transport 
    COLIBABA, G. V.; RUSNAC, D.; FEDOROV, V.; PETRENKO, P.; MONAICO, E. V. (Elservier, 2021)
    A new technology for sintering a ZnO + Ga2O3 powder via chemical vapor transport based on HCl has been developed. The proposed sintering method has the following advantages: a low sintering temperature of 1000–1100 °C, ...
  • Low-Temperature Solution Synthesis of Au-Modified ZnO Nanowires for Highly Efficient Hydrogen Nanosensors 
    LUPAN, Oleg; POSTICA, Vasile; WOLFF, Niklas; SU, Jun; LABAT, Frédéric; CIOFINI, Ilaria; CAVERS, Heather; ADELUNG, Rainer; POLONSKYI, Oleksandr; FAUPEL, Franz; KIENLE, Lorenz; VIANA, Bruno; PAUPORTÉ, Thierry (American Chemical Society, 2019)
    In this research, the low-temperature single-step electrochemical deposition of arrayed ZnO nanowires (NWs) decorated by Au nanoparticles (NPs) with diameters ranging between 10 and 100 nm is successfully demonstrated for ...
  • Low-Voltage UV-Electroluminescence from ZnO-Nanowire Array/p-GaN Light-Emitting Diodes 
    LUPAN, Oleg; PAUPORTÉ, Thierry; VIANA, Bruno (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2010)
    UV LEDs : The fabrication of an ITO/ZnO-nanowires/p-GaN/In-Ga LED structure is reported with an active emitting layer made of high-quality epitaxial ZnO grown electrochemically from a solution at low temperature (85 °C). ...

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