Browsing 2011 by Issue Date

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  • The Implementation of Modern Digital Technology in X-ray Medical Diagnoses in Republic of Moldova –a Stringent Necessity 
    ROSCA, Andrei (Technical University of Moldova, 2011)
    The study includes the analyses of state of technical X-ray diagnostic equipment from public medico-sanitary institution of Ministry of Health of Republic of Moldova (IMSP MS RM) at 01.01.11. The traditional RD apparatuses’ ...
  • Surface Plasmon Enhanced Luminescence from Ag covered Anatase Titania Nanotubes 
    ENACHI, Mihai; URSAKI, Veaceslav; SERGENTU, Vladimir (Technical University of Moldova, 2011)
    We show that coating of titania nanotubes by Ag layers with thickness of 5 – 20 nm leads to the increase of the near-bandgap photoluminescence intensity by one order of magnitude, while the effect of Au coatings is ...
  • Complex device for recording and signal processing of cardiac activity 
    SONTEA, Victor; IAVORSCHI, Anatolie; PAHOMI, Valerii; PÎRŢAC, Valeriu; ANGHILOGLU, Dmitri; RAILEAN, Sergiu (Technical University of Moldova, 2011)
    There are described structural scheme of the measurement system and processing of photopletismogram, interacting units, possibilities of software and interfaces in two modes of operation: the pc and with a special modul.there ...
  • Strain-Tunable Quantum Dot Devices 
    RASTELLI, A.; TROTTA, R.; ZALLO, E.; ATKINSON, P.; MAGERL, E.; DING, F.; PLUMHOF, J. D.; KUMAR, S.; DÖRR, K.; SCHMIDT, O.G. (Technical University of Moldova, 2011)
    We introduce a new class of quantum dot-based devices, in which the semiconductor structures are integrated on top of piezoelectric actuators. This combination allows on one hand to study in detail the effects produced by ...
  • Two Simple Examples for the Micro-nano Integration of Nanowires as Electronic Device Elements 
    ADELUNG, Rainer (Technical University of Moldova, 2011)
    As a part of the conference talk about the mass fabrication and applications of nanostructures, the aim of this paper is to review and compare two approaches for the simple fabrication and integration and of nanostructures ...
  • Ballistic Charge Carrier Devices for Terahertz 
    HARTNAGEL, H. L. (Technical University of Moldova, 2011)
    It is of great interest, to produce light-weight Terahertz sources for the many appl ications such as security testing. By reducing the transit distance suitably, the charge carrier can be approximately ballistic, that is ...
  • Synthesis and Characterization of Colloidal PbS Quantum Dots in Gelatin 
    MITIOGLU, Anatolie; GHERMAN, Cornel; LASCOVA, Renata; CUHARUC, Anatolii; AVRILUŢA, Anatolie; CULIUC, Leonid (Technical University of Moldova, 2011)
    Colloidal solutions of lead sulphide (PbS) quantum dots (QDs) stabilized in gelatine were obtained using a novel simple method. Nanoparticle sizes were tuned during the synthesis by means of reaction temperature. In addition, ...
  • Photoelectric Converters: Current State Analysis and Prospects of Evolution 
    YAKIMENKO, Y. I.; MLADENOV, G. M.; SPIVAK, V. M.; BOGDAN, A. V.; KOVAL, V. M. (Technical University of Moldova, 2011)
    This review provides the analysis of current state and prospects of evolution of photoelectric converters (PEC). There are shown the directions, ways and means of PEC research and development. It is discussed the state of ...
  • Influence of Adsorption of Organic Molecules on the PL Spectra of Porous Nanostructure and Carbon Nanotubes, Covering the Surface of Silicon 
    LITOVCHENKO, V. G.; GORBANYUK, T. I. (Technical University of Moldova, 2011)
    Surface layers can be very sensitive to adsorption of organic molecules, introduced from liquid solution. So, it will be play the role of the detector for different, sometime ecological dangerous, molecules included organic.
  • Analysis of the Behavior of PVDF Layers Deposited under Various Conditions 
    COJOCARU, Victor; KATASHEV, Alexei; TEODORESCU, Horia-Nicolai (Technical University of Moldova, 2011)
    We analyze the surface and piezoelectric properties of PVDF films deposited on the surface of Si wafer by solution casting under various conditions of temperature and electric field.
  • Topological Insulator Materials and Nanostructures for Future Electronics, Spintronics and Energy Conversion 
    KANTSER, Valeriu (Technical University of Moldova, 2011)
    Two fundamental electrons attributes in materials and nanostructures - charge and spin – determine their electronic properties. The processing of information in conventional electronic devices is based only on the charge ...
  • Fundamental Issues in the Manufacturing of Nanoelectromechanical (NEMS) and Related Nanosystems 
    SINGH, R.; ALAPATT, G. F.; GUPTA, N.; POOLE, K. F. (Technical University of Moldova, 2011)
    Nanostructures in dimension below about 10 nm show interesting properties because of the effect of low-dimension physics. However, to utilize these properties in practice to commercialize NEMS and related nano-systems ...
  • Effective Laser Luminescence of Nanocomposites Eu(TTA)2(Ph3PO)2NO3-Polyvinylpyrrolidone 
    VERLAN, V. I.; IOVU, M. S.; BUZURNIUC, S. A.; NISTOR, Yu. H.; CULEAC, I.; TURTA, C. I.; ZUBAREVA, V. E.; MALAHOV, L. A. (Technical University of Moldova, 2011)
    Thin films (1-10 μm thickness) of nanocomposites (NC) based on organic coordinated compound (OCC) Eu(TTA)2(Ph3PO)2NO3 (where TTA is thenoyltrifluoroacetonate (C8H5F3O2S), Ph3PO - triphenylphosphine (C6H5PO) and polymer – ...
  • Morphology and Luminescence Properties of ZnO layers produced by Magnetron Spattering 
    RUSU, Emil; GHIŢU, Irina; PRILEPOV, Vladimir; ZALAMAI, Victor; URSAKI, Veaceslav (Technical University of Moldova, 2011)
    We show that the morphology and the luminescence properties of ZnO layers produced by magnetron sputtering can be controlled by technological parameters of sputtering, particularly by the ratio of argon to oxygen gases in ...
  • Optical Properties of Amorphous As-Se Thin Films 
    HAREA, D. V.; IOVU, M. S.; BENEA, V. G.; COLOMEICO, E. P.; COJOCARU, I. A. (Technical University of Moldova, 2011)
    Photostructural transformations in amorphous films of chalcogenide glasses (ChG) under light irradiation present scientific and practical interests. From scientific point of view, because the composition of ChG determine ...
  • Superconducting Spin Switch Based on Superconductor-Ferromagnet Nanostructures for Spintronics 
    KEHRLE, Jan; ZDRAVKOV, Vladimir; MUELLER, Claus; OBERMEIER, Guenter; SCHRECK, Matthias; GSELL, Stefan; HORN, Siegfried; TIDECKS, Reinhard; MORARI, Roman; PREPELITSA, Andrei; ANTROPOV, Evgenii; SOCROVISCIUC, Alexei; NOLD, Eberhard; TAGIROV, Lenar; SIDORENKO, Anatoli (Technical University of Moldova, 2011)
    Very rapid developing area, spintronics, needs new devices, based on new physical principles. One of such devices – a superconducting spin-switch, consists of ferromagnetic and superconducting layers, and is based on a new ...
  • High Resolution Position Inductive Transducers for Harsh Environmental Conditions 
    JULA, Nicolae; URSU, Tudor; DIACONESCU, Cristina Nicoleta; OBREJA, Radu (Technical University of Moldova, 2011)
    In this paper the authors present certain theoretical, conceptual and technological aspects on main types of high resolution inductive transducers for harsh environmental conditions. Inductive resolvers, as well as inductive ...
  • About the Using of Polarization Methods in Investigating the Polarization Sensitive Nanosystems 
    ZENKOVA, C.Yu.; SOLTYS, I. V. (Technical University of Moldova, 2011)
    The paper shows the possibilities of defining the degree of correlation of mutually orthogonal superposing circularly-polarized and linearly-polarized plane waves. The proposed results widen possibilities of metrological ...
  • The Simulation of Pulsed Heater for a Sampling System for the Ion Mobility Spectrometer 
    MALKIN, Evgeniy (Technical University of Moldova, 2011)
    The development of the sampling device with pulsed heating of the intermediate carrier for ion mobility spectrometer is described in this article. Numerical simulation of a pulse heater structure of is presented. The design ...
  • The Fitting Parameters Extraction of Conversion Model of the Low Dose Rate Effect in Bipolar Devices 
    BAKERENKOV, Alexander (Technical University of Moldova, 2011)
    The Enhanced Low Dose Rate Sensitivity (ELDRS) in bipolar devices consists of in base current degradation of NPN and PNP transistors increase as the dose rate is decreased [1]. As a result of almost 20-year studying, the ...

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