Facultatea Electronică şi Telecomunicaţii: Recent submissions

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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 ...
Коррекция калибровочной зависимости емкостного датчика с использованием контактного датчика при измерении зазоров газотурбинного двигателя

ДОБРОВ, Дмитрий; ВЛАДОВ, Михаил; УКРАИНЦЕВ, Данил (Tehnica UTM, 2012)

In the article has described a method of the capacitive probe radial calibration curve correction using touch probe during the gas-turbine engine blade tip clearance measurement.
Particularităţile diagnosticării defectelor rulmenţilor

SOROCHIN, Gherman; TINCOVAN, Sergiu (Tehnica UTM, 2012)

The paper deals with some approaches to the diagnostics of roller bearing defects. Dignity of the envelope analysis method for monitoring and diagnostics of defects on the basis of spectrum and cepstrum of vibration ...
Calculul erorii sistematice pentru simulatorul metrologic de impedanţă

NICOLAEV, Pavel (Tehnica UTM, 2012)

The present article reflects the procedure of calculating the error of metrological simulators of impedance by means of the directed graph method. Therefore it is considered as error factors the non ideality parameters ...
Detectarea gazelor toxice prin măsurarea impedanţei peliculelor de telur

MOCREAC, Olga (Tehnica UTM, 2012)

Impedance spectra of tellurium thin films with interdigital platinum electrodes have been investigated in different gaseous media. For the first time it is pointed out that tellurium films exhibit sensitivity to H2 at ...
Simulatoare metrologice de impedanţe flotante

NASTAS, Vitalie (Tehnica UTM, 2012)

Paper contains some aspects of synthesis and analysis of the metrological simulators of floating impedance, suitable for using as the measures in impedance meters. There are presented two type of simulators for reproducing ...
Sistem automat de verificare si sortare a pieselor bazat pe traductoare cu triangulatie

POPESCU, Marinel (Tehnica UTM, 2012)

The problem of distance or position measurement using non-contact method and instrument it is current concern for engineers. Using this way is possible to verify dimensions and sorts the parts of plants after mechanical ...
LED часы с дистанционным управлением

ЧИМПОЕШ, Илья (Tehnica UTM, 2012)

In this work considered the project of LED clock with remote control. Are presented block diagrams of time and date indication. Clock is implemented on the basis of microcontroller ATMega128.
Dispozitiv de reglare a intensitatii luminii cu ajutorul tehnologiei Touch-led

CANDRAMAN, Sergiu (Tehnica UTM, 2012)

From the beginning, Leds are used in many applications for signalization purposes. For what else can be Led used except for signalization or lighting? You can use it in another way, and some times that may be very useful. ...

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