Facultatea Electronică şi Telecomunicaţii: Recent submissions

  • Circuite integrate flexibil-rigide – oportunităţi şi probleme 
    GANGAN, Silvia; ROTARU, Mihail; DUBROVIN, Iurii (Technical University of Moldova, 2012)
    The article is devoted to the interesting possibility of implementation of design solutions - flex-rigid multilayer printed circuit boards. The benefits of flex-rigid circuit boards are demonstrated, also the problems in ...
  • Analiza legii de dispersie a fononilor în cristalul cvasiunidimensional TTT2I3 
    NICIC, Veaceslav (Technical University of Moldova, 2012)
    The paper presents a theoretical study of the crystalline vibration spectrum in the quasi-one-dimensional organic crystal of the Tetratiotetracene-Iodide (TTT2I3). The dynamic matrix and the dispersion equation are obtained ...
  • Exitonul lui Frenkel în cristale PbGa2S4 
    PARVAN, V. I.; SYRBU, N. N.; URSAKI, V. V.; ZALAMAI, V.; BEJAN, N. (Technical University of Moldova, 2012)
    Pentru cristale PbGa2S4 este calculat conturul spectrelor de reflecţie a excitonii lui Frenkel. Sint identificaţi parametrii excitonului si benzele. Sint calculate valorile despicării cauzate de cimpul cristalin (Δcris) ...
  • Utilizarea convertoarelor de impedanţă în filtre active 
    AVRAM, Ion (Technical University of Moldova, 2012)
    Active filters have a basic device of electronic communication equipment. In this paper we analyze the cheme of the impedance converter for two variants of realization. It is estimated sensitivity of the input impedance ...
  • Procesul termic de aliere a straturilor epitaxiale de arseniură de galiu cu comandă automată 
    BARANOV, S.; COJUHARI, I.; GORCEAC, L.; RADU, P. (Technical University of Moldova, 2012)
    The automatic control system for thermal alloying process of GaAs epilayers growth by transport reaction in Ga-AsCl3-H2 system is reported. The control system was built on universal two-channels programmable PID-regulator ...
  • Particularităţile asamblării BGA-componentelor pe circuite imprimate multistrat 
    GANGAN, Silvia; ROTARU, Mihail; DIMITRACHE, Pavel; POPESCU, Nicolae (Technical University of Moldova, 2012)
    This article presents some peculiarities of assembly of BGA – components on the surface of multilayer printed circuit. Difficulties in the choice of ball terminals and controlling the soldering quality are described. An ...
  • Metoda simbolică de calculare a caracteristicilor curentului sinusoidal în cursul de electrotehnică universitar 
    GHEORGHITA, Eugen; LISII, Aliona; KOROLEVSKI, Boris; UNTILA, Pantelei; ZLOTEA, Olga (Technical University of Moldova, 2012)
    The symbolic method is largely applied to solve and describe various wave processes. The present paper describes this method in calculating the basic characteristics of sinusoidal current used in teaching Electrotechnics ...
  • Particularităţile efectelor de transport în antimonidul de galiu dopat cu nichel 
    GHEORGHIŢĂ, Eugen; KOROLEVSKI, Boris; POSTOLACHI, Igor; GUŢULEAC, Leonid; UNTILĂ, Pantelei (Technical University of Moldova, 2012)
    In present paper it is analyzed the changes of the galvanomagnetic effects of gallium antimonide under the influence of the nickel. It shows anisotropy of the transport effects in relation to the orientation of inclusions ...
  • Fononii оn apropierea tranziţiei de fază peierls оn cristale organice cvasiunidimensionale 
    ANDRONIC, Silvia; CASIAN, Anatolie (Technical University of Moldova, 2012)
    Many quasi-one-dimensional organic crystals, known as synthetic metals at room temperature, become insulators when the temperature decreases, due to a Peierls transition. In the crystals withhalf filled conduction band the ...
  • Dispozitiv electronic multi-canal pentru monitorizarea ecologică 
    RUSU, Aurel; ŞIŞIANU, Sergiu; VERJBIŢKI, Valeriu; MACHEDON, Alexandru; ŞIŞIANU, Teodor (Technical University of Moldova, 2012)
    In this paper we present the elaborated multichannel device for ecological monitoring with advanced parameters which permit the remote control of environmental monitoring systems. The advantage of the created system is in ...
  • Modul de dirijare a puterii optice a diodelor laser 
    GRITCO, Andrei; ZAVRAJNII, Serghei; TIRON, Iurie; NICA, Iurie (Technical University of Moldova, 2012)
    This article describes the optical power control module, of laser diodes, which is included in the therapy installation using local hyperthermia. The function of this module is to produce and maintain, during the entire ...
  • Anticipated synchronization of DFB laser with passive dispersive reflector 
    TRONCIU, V. Z.; ROTARU, A. H.; RUSU, S.; RUSU, A. (Technical University of Moldova, 2012)
    We discuss the phenomena of anticipated synchronization in a DFB lasers with passive dispersive reflector. A rate equation model is proposed. It is shown that the system of two lasers coupled in unidirectional configuration ...
  • Porosification of narrow and wide band gap semiconductor compounds: comparative study of InAs, InP and ZnSe 
    MONAICO, Eduard; TIGINYANU, I. M.; URSAKI, V. V.; COLIBABA, G.; NEDEOGLO, D. D.; COJOCARU, A.; FÖLL, H. (Technical University of Moldova, 2012)
    A comparative study of the pore growth during anodization of a narrow-bandgap III-V compound (InAs), a medium-bandgap III-V compound (InP) and a wide-bandgap II-VI semiconductor (ZnSe) is performed. It was found that the ...
  • Characterization of high refractive amorphous (As4S3Se3)1-x:Snx chalcogenide glasses 
    IASENIUC, O. V.; IOVU, M. S.; COLOMEICO, E. P.; SHEPEL, D. F.; MESHALKIN, A. (Technical University of Moldova, 2012)
    The transmission spectra of bulk and thin films of (As4S3Se3)1-x:Snx in the visible and infrared (IR) regions were investigated. Doping of As4S3Se3 chalcogenide glass with Sn impurities essentially reduce the absorption ...
  • Collective phenomena in multi - band superconducting systems doped with non magnetic impurity 
    CALALB, Mihai; CALALB, Liliana (Technical University of Moldova, 2012)
    The overlapping of energy bands on the Fermi surface changes the properties of multi – band superconductors as qualitatively as well quantitatively. Here we investigate the appearance of collective oscillations caused by ...
  • Physical and optical properties of amorphous (As2(Sb2)Se3)1-X:SnX thin films 
    IOVU, M. S.; HAREA, D. V.; COLOMEICO, E. P.; HAREA, E.; COJOCARU, I. A. (Technical University of Moldova, 2012)
    The mechanical properties (the hardness H), the morphology, the 119Sn Mossbauer spectroscopy, and the Temperature Modulated Differential Scanning Calorimetry (MDSC) of amorphous (As2Se3)1-x:Snx and (Sb2Se3)1-x:Snx bulk ...
  • Superconducting critical temperature reentrance in F/S/F three-layered structures based on Nb AND Cu41Ni59 alloy 
    ZDRAVKOV, V. I.; OBERMEIER, G.; GARCIA-GARCIA, J.; KEHRLE, J.; ULLRICH, A.; MULLER, C.; MORARI, R.; ANTROPOV, E.; HORN, S.; TAGIROV, L. R.; TIDECKS, R.; SIDORENKO, A. S.; GHITU, D. (Technical University of Moldova, 2012)
    Ferromagnet/Superconductor/Ferromagnet (F/S/F) trilayers, in which the establishing of a Fulde-Ferrell Larkin-Ovchinnikov (FFLO) like state leads re-entrance behavior of superconductivity, form the core structure of the ...
  • Peculiarities of silver photodissolution in (GeS4 ) (AsS3 )x-1 glassy films 
    TSIULYANU, D.; STRATAN, I.; PILETCHI, N. (Technical University of Moldova, 2012)
    The kinetics of the photodissolution (PD) of Ag into glassy (GeS4 ) (AsS3 )x-1 films has been studied by monitoring the changes that occur in their optical transmission of weakly absorbed broadband light. It was shown that ...
  • Characteristic of paralleling limited capacity voltage sources 
    PENIN, Alexandr; SIDORENKO, Anatolie (Technical University of Moldova, 2012)
    The droop current- sharing method for voltage sources of the limited capacity is considered. Influence of load resistor is investigated on uniform distribution of relative value of currents when the actual loading corresponds ...
  • Superconducting spin–switch for spintronics 
    SIDORENKO, Anatolie (Technical University of Moldova, 2012)
    Very rapid developing area of spintronics needs new devices, based on new physical principles. One of such devices – a superconducting spin-switch consists of ferromagnetic and superconducting layers.The thicknesses tuning ...

Search DSpace


Advanced Search

Browse

My Account