Facultatea Electronică şi Telecomunicaţii: Recent submissions

Now showing items 1041-1060 of 1268

A Second Order-Cone Programming Relaxation for Facility Location Problem and Simple Assembly Line Balancing Problem

MORARU, V.; ZAPOROJAN, S.; COJOCARI, N. (Technical University of Moldova, 2015)

The paper put into discussion the numerical solving of the well known problems in the field of production planning - the facility location problem and the balancing problem SALBP-I (Simple Assembly Line Balancing Problem ...
Эффект ШдГ и термоэлектрические свойства нитей Bi, легированных акцепторной примесью Sn

НИКОЛАЕВА, А. А.; КОНОПКО, Л. А.; БОДЮЛ, П. П.; ПАРА, Г. И.; БОТНАРЬ, О. В. (Technical University of Moldova, 2015)

The influence of the acceptor impurity Sn on the manifestation of size effects in magnetoresistance, and thermopower of single-crystal Bi wires in a glass cover prepared the liquid phase casting with diameters ranging from ...
Supraconductibilitatea în Modelul Shiba-Rusinov. Examinarea Gapului Energetic

VLADIMIR, M. (Technical University of Moldova, 2015)

Shiba – Rusinov model is examined for systems with magnetic impurities inside energy gap. The magnetic impurity is described by energy level and in case of strong scattering of electrons on an impurity it transforms into ...
Extinderea suprafeţei membranelor ultra-subţiri în baza GaN în procesul de fabricare prin utilizarea litografiei cu sarcină de suprafaţă

BATÎRI, M.; CIOBANU, V.; BRANIŞTE, F.; MONAICO, E.; TIGINYANU, I. (Technical University of Moldova, 2015)

We propose for the implementation a cost effective technological route in the obtaining process of ultrathin GaN membranes. Our technique is based on the modified version of previously described Surface Charge Lithography ...
Electroconductibilitatea peliculelor subţiri de calcogenuri în bază de telur cu contacte din Au şi Ag

CIOBANU, M.; ŢIULEANU, D. (Technical University of Moldova, 2015)

The current - voltage characteristics of some Te – based glassy chalcogenides with Au and Ag paste contacts are studied, paying attention to effect of temperature and annealing on electrical conductivity of the entire ...
Doparea oxidului de cupru pentru aplicaţii senzoriale

ABABII, N.; POSTICA, V.; CREŢU, V.; RAILEAN, S.; ŞONTEA, V.; LUPAN, O.; MONAICO, E. (Technical University of Moldova, 2015)

Nanostructured Al- and Ag-doped films were deposited by synthesis from aqueous chemical solutions SCS. It was demonstrated change in selectivity of sensors based on the doped films. For Ag-doped films has been obtained ...
Birefringence in CdGa2S4 Crystals

TIRON, A. V.; PARVAN, V. I.; SYRBU, N. N.; ZALAMAI, V. V. (Technical University of Moldova, 2015)

In СdGа2S4 crystals Fabry-Perot and birefringence interference spectra were investigated. Spectral dependences of refraction indexes for ordinary and extraordinary light waves are defined. The spectral dependence Δn = ne ...
Birefringence in ZnP2-D4

STAMOV, I. G.; ZALAMAI, V. V.; NEMERENCO, L.; SYRBU, N. N. (Technical University of Moldova, 2015)

Spatial dispersion in ZnP2-D48 has been studied. The spectral dependences of the refractive index nс (Е||с, k||a), nа (Е||а, k||с) and nb (E||b, k||c) had been determined. ZnP2-D4 8 crystals are isotropic at λо=612nm ...
Transport Properties of Nanostructured Organic Crystal of TTT(TCNQ)2

SANDULEAC, I.; BALMUS, I.; CASIAN, A. (Technical University of Moldova, 2015)

The numerical modeling of electrical conductivity and thermopower of TTT(TCNQ)2 organic crystals is performed in order to investigate the prospect of using the mentioned crystals as thermoelectric material. The calculus ...
Peierls Structural Transition in Organic Crystals of TTF-TCNQ in the 3D Model

ANDRONIC, S.; BALMUS, I.; CASIAN, A. (Technical University of Moldova, 2015)

Peierls transition in organic crystals of TTF-TCNQ type is studied in 3D approximation. For a more complete description of the crystal model, two the most important electronphonon interactions are considered. The transition ...
Electrical Properties of Zinc Phosphide Crystals

MOROZOVA, V. (Technical University of Moldova, 2015)

The results of the study of electrical properties of zinc phosphide crystals are presented. S-type current-voltage characteristics were observed. The switching effect and electrical memory were obtained during the investigation ...
Wavelength Modulated Optical Spectra of TlGaS2 Crystals

BEJAN, N. P.; NEMERENCO, L. L.; MASNIC, A. (Technical University of Moldova, 2015)

Wavelength modulated reflection spectra measured at temperatures 14 K and 300 K in E||a and E||b polarizations for TlGaS2 crystals were investigated. The ground and excited states of excitons B2u in E||a polarization and ...
Разработка системы симулирования для определения резолюции π-тестов

ГРИЦКОВ, C.; ЛАЗЭР, Д.; СОРОКИН, Г. (Technical University of Moldova, 2015)

This paper describes elaboration of a simulation system of pseudo-ring testing in C++ Builder. The elaborated application allows to simulate pseudo-ring testing with generation of different kinds of faults and calculate ...
Π-тестирование с применением LFSR на основе приводимых полиномов

ГРИЦКОВ, С. (Technical University of Moldova, 2015)

In this paper pseudo-ring testing of digital memory with LFSR on bases of reducible polynomial is described. Resolution of this kind of pseudo-ring tests is presented for stuckat and coupled faults, and comparative analysis ...
Modernizarea sistemului de tracţiune a motorului de curent continuu pentru troleibuzul articulat UMZ-T1

MOTROI, Al.; EŞANU, V.; NUCA, I.; OLEVSCHI, G.; NUCA, I. (Technical University of Moldova, 2015)

The aim of this paper is to present the upgrade of direct current traction on compound trolleys. Firstly, we will present the actual state and a general description of the compound trolleybus and its control system, the ...
Stabilitatea circuitelor selective pe baza convertoarelor de impedanță

AVRAM, I. (Technical University of Moldova, 2015)

In this paper we study the stability of frequency selective circuits based on impedance converters. We calculated the critical amount of the setting element and the critical frequency that can be generated by selective ...
Lampă Stradală LED42. Posibilitatea asamblării în RM

SECRIERU, V.; VIERU, S.; MUNTEANU, E.; DOROGAN, V.; VIERU, T. (Technical University of Moldova, 2015)

In this article are described light sources on the base of 1W diodes. The list of components, used modules, recent prices on the national and foreign market, opportunities of the light lamps assembly in Moldova are presented. ...
Utilizarea tehnologiilor informaționale în analiza și controlul calității procesului de producție a cafelei "Espresso"

ȚURCANU, A.; NUCA, I. (Technical University of Moldova, 2015)

The article refers to the usage of information technology for quality control of the production process beverages from coffee beans. The coffee equipment is presented and extraction principle of the percolation method is ...
Utilizarea sistemului de sincronizare exterioară pentru sporirea stabilității la zgomot în cazul metodei homodine de recepție a semnalelor optice

CHIHAI, A. G.; NISTIRIUC, A. P.; BEJAN, N. P.; IAZLOVEŢCHI, M. L.; BAXAN, L. V.; NISTIRIUC, P. V.; SHARMA POPOVICI, N.; DRĂGUŢAN, N.; RUSSU, G. (Technical University of Moldova, 2015)

In the infrared wavelength range λ = 1...6 microns, we investigated the use of external injection timing on the basis of a cylindrical lens (CL) with tunable parameters for better noise immunity with homodyne method of ...
Development of Electronic Equipment for Trolleybuses with Autonomous Power Source

MOTROI, Al.; EŞANU, V.; NUCA, I.; OLEVSCHI, G.; NUCA, I. (Technical University of Moldova, 2015)

In this paper we present the development of a system with autonomous power source for trolleybuses. These newly developed rechargeable batteries powered system are supposed to allow a trolleybus to move away from grid lines ...

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