Browsing 2017 by Title

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  • Fabrication and characterization of flexible composite material based on Aerographite/InP micro-nanostructures 
    PLESCO, Irina; STROBEL, Julian; SCHÜTT, Fabian; GORCEAC, Leonid; CINIC, Boris; HIMCINSCHI, Cameliu; MISHRA, Yogendra Kumar; KIENLE, Lorenz; ADELUNG, Rainer; TIGINYANU, Ion (Technical University of Moldova, 2017)
    The goal of this work is to extend the class of flexible hybrid nanomaterials based on aerographite scaffolds. For this purpose, we developed the technological conditions for the deposition of InP:Zn micro- and nanostructures ...
  • Fabrication of Porous Nanostructures by Design 
    MONAICO, Eduard; MONAICO, Elena; URSAKI, Veaceslav; TIGINYANU, Ion (Technical University of Moldova, 2017)
    We report on the application of special design of masks for the purpose of electrochemical etching of InP single crystals which enables one to change in a controlled fashion the direction of propagation of pores, including ...
  • Features of luminescence in semiconductor quantum wires in external electric and magnetic fields 
    SINYAVSKY, Elerlange; KOSTYUKEVICH, Nina (Technical University of Moldova, 2017)
    The interband optical transitions in quantum wires in a model of a parabolic potential in an electric and magnetic field directed perpendicular to the nanowire axis are studied theoretically. The frequency dependences of ...
  • Fiber Optic Speckle Interferometry for Intrusion Monitoring Systems 
    CULEAC, I.; BORSCIOV, V.; VERLAN, V.; COJOCARU, I.; IOVU, M.; CIORNEA, V.; BUZDUGAN, A. (Technical University of Moldova, 2017)
    A speckle based fiber-optic technique for perimeter intrusion-monitoring systems is discussed. The method is based on the effect of variation of the speckle pattern in the far-field of a multimode fiber. Computer processing ...
  • GaP: Long-Term Evolution of Properties and New Prospects for Optoelectronics 
    PYSHKIN, Sergei L.; BALLATO, John M. (Technical University of Moldova, 2017)
    A unique set of GaP semiconductor samples studied for over 50 years has exhibited significant improvement in their properties through the formation of the perfect host crystal lattice and the N‐impurity crystal superlattice. ...
  • Gas sensors based on optical fiber coated with nanocrystalline TiO2 and nanofibrous ZnO 
    GHIMPU, Lidia; PLESCO, Irina; URSACHI, Veaceslav; TIGINYANU, Ion; ZARRELLI, Mauro; ZOTTI, Aldobeneddetto; BORRIELLO, Anna (Technical University of Moldova, 2017)
    The paper is divided into two main sections: first, we report on magnetron sputtering of zinc oxide and titanium dioxide; second, the results of the investigation of the morphology and sensing characteristics of the optical ...
  • Greseli fundamentale în unii itemi de fizică din sesiunea BAC 2017 
    EVTODIEV, Igor (Technical University of Moldova, 2017)
    În lucrare se pune în evidență importanța testelor de evaluare la fizică prin corectitudinea itemilor elaborați conform matricii de specificații și scoaterea în evidență a greșelilor de profil pentru unii itemi de fizică ...
  • Hexanuclear pivalate iron(iii) cluster with a functionalized salicylaldehyde 
    MALAESTEAN, Iurie L.; SHOVA, Sergiu; DRAGANCEA, Diana (Technical University of Moldova, 2017)
    In the last two decades there is a continuing search for new synthetic methods that can yield new polynuclear molecular species with unusual or novel magnetic properties. In this paper, we describe the use of aldehyde-based ...
  • Homonymes à consonnes doubles 
    BOTNARU, Raisa; BOTNARU, Irina (Technical University of Moldova, 2017)
    L’article présent se rapporte au thème de la lexicologie ,,l’homonymie”. Ce phénomène linguistique est décrit comme une relation entre plusieurs formes linguistiques ayant le même signifiant, graphique ou phonique, et des ...
  • HTSC in Modern Anisotropic Compounds 
    PALISTRANT, M. E.; CALALB, Mihail; URSU, Vitalie (Technical University of Moldova, 2017)
    The contribution of Moldavian theoretical physicists to the development of the theory of superconductivity in systems with many energy bands and the application of this theory to the description of experimental results on ...
  • Hydrogen detection by individual Pd-modified ZnO nanowire 
    LUPAN, Oleg; PAUPORTÉ, Thierry; POSTICA, Vasile; VIANA, Bruno; ADELUNG, Rainer; CHOW, Lee; TIGINYANU, Ion (Technical University of Moldova, 2017)
    In this work an individual Pd-modified ZnO nanowire (Pd/ZnO NW) was integrated into a nanosensor device using focused ion beam (FIB)/scanning electron microscopy (SEM) system. The Pd/ZnO arrays were synthesized by ...
  • Identificarea modelului matematic al motorului de curent continuu în baza LabView 
    COJUHARI, Irina; FIODOROV, Ion; IZVOREANU, Bartolomeu; MORARU, Dumitru; MELNIC, Radu; CEBAN, Andrei (Technical University of Moldova, 2017)
    În lucrare dată se propune de a efectua identificarea experimentală în timp real a modelului matematic al motorului de curent continuu 2342L012, în baza instrumentarului virtual în mediul de programare LabView. Instrumentarul ...
  • Imprimarea 3D pe baza principiului de extrudarea termoplastică 
    BOTNARU, Sorin; COJUHARI, Irina; FIODOROV, Ion (Technical University of Moldova, 2017)
    În lucrarea este descris sistemul de formare a pieselor de dimensiuni mici din polimere, pe baza principiului de extrudare termoplastică. Sistemul elaborat are ca scop formarea pieselor cu volumul maxim de 20535 mm3 și ca ...
  • In memoriam of academician Valeriu Kantser 
    SIDORENKO, Anatolie (Technical University of Moldova, 2017)
    When a good bright man leaves, the world becomes poorer. In April this year, the scientific community of Moldova lost an outstanding scientist, while the Moldavian Journal of the Physical Sciences lost its first editor-in-chief, ...
  • Influence of Metal Deposition on Electrochemical Impedance Spectra of Porous GaP and GaN Semiconductors 
    ANICAI, Liana; GOLGOVICI, Florentina; MONAICO, Eduard; URSAKI, Veaceslav; PRODANA, Mariana; ENACHESCU, Marius; TIGINYANU, Ion (Technical University of Moldova, 2017)
    A comparative analysis of electrochemical impedance spectroscopy (EIS) characterization is performed in porous GaN and GaP templates with and without metal nanostructured layers deposited by pulsed electroplating. The ...
  • Influence of thickness and polarization on diffraction efficiency of direct patterned diffraction gratings in carbazole-based azopolymer films 
    LOSMANSCHII, Constantin; MESHALKIN, Alexei; ACHIMOVA, Elena; ABASHKIN, Vladimir; PRISACAR, Alexandr; CAZAC, Veronica; POGREBNOI, Serghei; MACAEV, Fliur (Technical University of Moldova, 2017)
    In this paper we report on direct holographic recording of surface relief gratings in carbazole-based azopolymers. Azo dye Disperse Orange 3 was chemically bonded to oligomer poly-N-(epoxypropyl carbazole) making surface ...
  • Influence of TiO2 Ultra-Thin Films on Gas Sensing Properties of CuO:Zn 
    ABABII, Nicolai; REIMER, Tim; POSTICA, Vasile; HOPPE, Mathias; CHEMNITZ, Steffen; SONTEA, Victor; BENECKE, Wolfgang; ADELUNG, Rainer; LUPAN, Oleg (Technical University of Moldova, 2017)
    Copper oxide is a p-type metal oxide with remarkable optical, electrical, thermal and sensing properties. The oxidation of Cu2O to CuO can be performed by thermal annealing at relatively low temperatures. The present study ...
  • Influența radiației electromagnetice asupra proceselor biomoleculare 
    CIOBANU, Nellu; GUBCEAC, Natalia; GRABOVSCHI, Ion; TRONCIU, Vasile (Technical University of Moldova, 2017)
    În această lucrare este descris un model teoretic al interacţiunii radiaţiei electromagnetice din diapazonul milimetric şi terahertz cu un mediu biologic. În calitate de mediu a fost considerat un sistem de celule (molecule). ...
  • The interplay between cyber and nuclear security in Republic of Moldova 
    BUZDUGAN, Aurelian; BUZDUGAN, Artur (Technical University of Moldova, 2017)
    In this paper we will reflect upon the necessity to follow the national cyber security requirements, which are also addressed to operators of nuclear and highly radioactive materials (NR). We will begin with an overview ...
  • Iurie Perlin – in memoriam 
    MALCOCI, Iulia (Technical University of Moldova, 2017)
    Profesorul universitar I. Perlin a crescut într-o familie de intelectuali, casa lor fiind vizitată de personalități proeminente ca pianistul și pedagogul rus de origine germană H. Neuhous (1888–1964), poetul B. Pasternak ...

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