Articole din publicaţii internaţionale: Recent submissions

Now showing items 1341-1360 of 3232

A review of the multiphase electric machines

RAŢĂ, Iurie; TODOS, Petru; NUCĂ, Ilie (Technical University of Moldova, 2007)

The electrical machines with increased number of phases (m>3) are destined for the equipment of the installations and apparatus that function in autonomic regime and presents a special importance for different industrial ...
Theoretical and Experimental Research on the Technological Process of Spraying and Dynamics of the Motorized Agricultural Platform

CHIRIŢĂ, Polifron-Alexandru; CRISTESCU, Corneliu; RĂDOI, Radu; CIOBANU, Oleg (Hidraulica Magazine, 2018)

This article presents the results of a research developed by INOE2000 - IHP, as well as a functional model of a motorized agricultural platform used for spraying in horticulture. This is part of a complex crop monitoring ...
SEM, EDS and XPS studies of AC & DC PEO coatings obtained on titanium substrate

ROKOSZ, K.; HRYNIEWICZ, T.; DUDEK, Ł.; PIETRZAK, K.; RAAEN, S.; MALORNY, W.; CIUPERCA, R. (IOP Publishing, 2019)

The porous coatings may be fabricated on titanium substrate by Plasma Electrolytic Oxidation (PEO), known also as Micro Arc Oxidation (MAO), under AC or DC regimes. The obtained surfaces were characterized by Scanning ...
Porous coatings obtained on titanium after IMPULSE – PEO processes

ROKOSZ, K.; HRYNIEWICZ, T.; DUDEK, Ł.; PIETRZAK, K.; RAAEN, S.; MALORNY, W.; CIUPERCA, R. (IOP Publishing, 2019)

The surface stereometry and chemical compositions of porous coatings obtained during Plasma Electrolytic Oxidation, PEO / (Micro Arc Oxidation, MAO) processes with use of impulse regime with different frequencies were the ...
Characterisation of porous coatings formed on titanium under AC plasma electrolytic oxidation

ROKOSZ, Krzysztof; HRYNIEWICZ, Tadeusz; GAIASCHI, Sofia; CHAPON, Patrick; RAAEN, Steinar; DUDEK, Łukasz; PIETRZAK, Kornel; MALORNY, Winfried; CIUPERCA, Radion (MATEC Web Conferences, 2018)

The Plasma Electrolytic Oxidation (PEO) process may be used to fabricate porous coatings on titanium. The ranges of voltages used In case of these plasma treatments are different. It has been found that for DC PEO processing ...
Thermoelectric properties of p-type TTT2I3 organic crystals as a function of temperature

SANDULEAC, Ionel; CASIAN, Anatolie (Academia de Ştiinţe a Moldovei, 2019)

Nanostructured organic materials of tetrathiotetracene-iodide (TTT2I3) are very prospective p – type thermoelectric material. The internal structure is pronounced quasi-one dimensional, with molecular chains spaced at ~1 ...
The dynamic behavior of quantum dots laser under the influence of external optical feedback from five external cavities

OLOINIC, Tatiana (Academia de Ştiinţe a Moldovei, 2019)

In this paper, the dynamic behavior of quantum dots laser under the influence of a multiple optical feedback is described. The laser’s structure consists of an active section and additional sections from which the optical ...
Features of correlation of electronic properties with an atomic scale characterization in the Bi bicrystal interfaces

MUNTYANU, F. M.; SIDORENKO, A. S.; CHISTOL, V. (Academia de Ştiinţe a Moldovei, 2019)

We present the results of study of the quantum transport, magnetic and superconducting properties of Bi bicrystals at low temperatures and high magnetic fields up 40T to highlight the electronic properties correlations ...
Thermomagnetic transport due to the superconducting interfaces in inclination bicrystals of Bi

MUNTYANU, F. M.; CONDREA, E. P.; CHISTOL, V.; MUNTEAN, Yu. (Academia de Ştiinţe a Moldovei, 2019)

The group- V semimetals are of major interest for solid state physics, because of easy access to the quantum limit in high magnetic fields and possibility of studying the unusual behaviour of Dirac electrons under extremal ...
Obtaining highly conductive oxide single crystals for manufacturing nanotemplates

COLIBABA, G.; MONAICO, E.; RUSNAC, D. (Academia de Ştiinţe a Moldovei, 2019)

The present investigation is devoted to obtaining ZnO, In2O3 and Ga2O3 single crystals by chemical vapor transport (CVT). The thermodynamic analysis of the composition of CVT systems with ZnO, In2O3, Ga2O3 and various ...
Manufacturing highly conductive ceramic targets and thin films of ZnO

COLIBABA, G.; FEDOROV, V.; RUSNAC, D.; GRABCO, D.; MONAICO, E.; PETRENCO, P.; ROTARU, C. (Academia de Ştiinţe a Moldovei, 2019)

The present investigation addresses a novel approach for sintering ZnO ceramics by means of chemical vapor transport (CVT) using compound transport agents. The typical size of obtained ZnO ceramics was 25 mm in diameter ...
Phonons near Peierls structural transition in the nanostructured tetrathiotetracene-iodide crystal

ANDRONIC, Silvia; CASIAN, Anatolie (Academia de Ştiinţe a Moldovei, 2019)

The behavior of the Peierls structural transition in quasi-one-dimensional organic crystals of tetrathiotetracene-iodide (TTT2I3) for different values of carrier concentration is analyzed in 3D approximation. In the frame ...
Theoretical studies of the dynamics of two section blue-violet semiconductor lasers

TRONCIU, Vasile (Academia de Ştiinţe a Moldovei, 2019)

We report results on the numerical investigations of the dynamical behavior of two section lasers. We find that the system displays, under certain conditions, sub-10-ps pulses. We sort out that the optimized structure for ...
The interaction between Endothelial Cells and Gallium Nitride nanoparticles

BRANISTE, Tudor; ANDREE, Birgit; BENECKE, Nils; RAEVSCHI, Simion; PLESCO, Irina; CEBOTARI, Serghei; HAVERICH, Axel; TIGHINEANU, Ion; HILFIKER, Andres (Academia de Ştiinţe a Moldovei, 2019)

In this study, human umbilical vein endothelial cells (HUVECs) were investigated in direct contact with Gallium Nitride (GaN/Fe) based nanoparticles. GaN is a compound semiconductor material, with remarkable characteristics ...
Effect of chlorine on the conductivity of ZnO:Ga thin films

COLIBABA, G. V.; RUSNAC, D.; FEDOROV, V.; MONAICO, E. I. (Springer Nature Switzerland, 2021)

An extensive study of the effect of various technological factors on the electrical properties of ZnO thin films obtained by DC magnetron sputtering of ZnO:Ga:Cl ceramic targets on glass substrates has been carried out. ...
An Ontology Selection and Ranking System Based on the Analytic Hierarchy Process

GROZA, Adrian; DRAGOSTE, Irina; SINCAI, Iulia; JIMBOREAN, Ioana; MORARU, Vasile (IEEE, 2014)

Selecting the desired ontology from a collection of available ones is essential for ontology reuse. We address the problem of evaluating, ranking and selecting ontologies according to user preferences. We exploit the ...
An Approach to Schedule Production using the Reservation Tables

ZAPOROJAN, Sergiu; MORARU, Vasile; GROZA, Adrian (Springer Nature Switzerland, 2015)

This paper deals with the problems of scheduling of manufacturing where specific requirements have to be considered like production of microwire and specialized products based on it. Scheduling of such production systems ...
A Newton-type method for convex quadratic programming

MORARU, Vasile; MELNIC, Radu (IEEE, 2006)

In this paper it is talked over Newton-type method for the problem of minimizing a convex quadratic function subject to linear constraints. The determination of the Karush-Kuhn-Tucker system solution is reduced to the ...
Determination of frequency deviation caused by doppler effect on Earth-Moon-Earth communication

ILCO, Valentin; LEVINEŢ, Nicolai (Universitatea de Stat „Bogdan Petriceicu Hasdeu“, Cahul, 2016)

Making an Earth-Moon-Earth communication (EME), at the RX frequency occurs the change of frequency compared to the transmission one. This change is due to the appearance of the Doppler effect caused by motion of the ...
Creating an online learning system in engineering sciences in the Republic of Moldova

TODOS, Petru; SECRIERU, Nicolae (Asociatia Generala a Inginerilor din Romania, 2012)

Aceasta lucrare reflecta dezvoltarea retelei Interuniversitare eLearn Moodle în conformitate cu proiectul TEMPUS «Crearea Retelei digitale interuniversitare în domeniul stiinţelor aplicate si economie din Republica Moldova ...

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