IRTUM – Institutional Repository of the Technical University of Moldova

Browsing Articole din publicaţii internaţionale by Title

Browsing Articole din publicaţii internaţionale by Title

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  • Excitonic states and electron transitions in HgGa2Se4 single crystals 
    ZALAMAI, V. V.; SYRBU, N .N.; TIRON, A. V. (Institutul de Fizică Aplicată, AŞM, 2018)
    The HgGa2Se4 crystals were grown by gas-transport method in ampoules and were plates with mirrored surfaces ~ 5x7 mm and 2 - 6 mm thickness. The plate‘s surfaces were parallel with c axis and could be recognized visually. ...
  • Excitons and energetic bands structure of ZnP2-С2h 5 crystals 
    STAMOV, I. G.; DOROGAN, A. V.; SYRBU, N. N.; ZALAMAI, V. V. (Open Science Publishers, 2014)
    Reflectivity and transmittance spectra of ZnP2-C2h 5 crystals in the region of A, B and C excitons and E>Eg had been researched. The spectra had been calculated using dispersion correlations and the Kramers-Kronig correlations. ...
  • Excitons in TlGaSe2 crystals 
    ZALAMAI, V. V.; SYRBU, N. N.; TIRON, A. V. (Academia de Ştiinţe a Moldovei, 2014)
    TaGaSe2 semiconductors crystallize as a lamellar structure and have monoclinic lattice. One of the features of these crystals is a strong anisotropy of physical characteristics due to the specificity of the crystal structure. ...
  • Exciton–phonon luminescence and Raman scattering in CuGaS2 crystals 
    SYRBU, N. N.; TEZLEVAN, V. E.; GALBICH, I.; NEMERENCO, L. L.; URSAKI, V. V. (ELSEVIER, 2009)
    Photoluminescence and resonance Raman scattering spectra of CuGaS2 crystals are investigated at low temperature (10K) under the excitation with the radiation from a spectral interval obtained by passing the radiation of ...
  • Experiența și designul modern al sistemelor fiscale internaționale 
    CHIRIAC, Natalia (Academia de Administrare Publică, Republica Moldova, 2020)
    This article describes the tax systems of the Member States of the European Union, the United States of America and Japan. It is well known that fiscal policy plays an important role in the market economy by applying the ...
  • Experimental and numerical study of Distributed-Bragg-Reflector tapered lasers 
    FIEBIG, C.; TRONCIU, V. Z.; LICHTNER, M.; PASCHKE, K.; WENZEL, H. (Springer Nature Switzerland, 2010)
    We report results on experimental and numerical investigations of the output characteristics of edge-emitting distributed Bragg reflector tapered diode lasers emitting around 980 nm. The experimental results are well ...
  • Experimental and theoretical analysis of the upper critical field in ferromagnet-superconductor-ferromagnet trilayers 
    ANTROPOV, E.; KALENKOV, M. S.; KEHRLE, J.; ZDRAVKOV, V. I.; MORARI, R.; SOCROVISCIUC, A.; LENK, D.; HORN, S.; TAGIROV, L. R.; ZAIKIN, A. D.; SIDORENKO, A. S.; HAHN, Horst; TIDECKS, R. (IOP Publishing, 2013)
    The upper critical magnetic field Hc2 in thin film ferromagnet–superconductor–ferromagnet trilayer spin-valve cores is studied experimentally and theoretically in geometries perpendicular and parallel to the heterostructure ...
  • Experimental estimation of the recognition reliability in the optical pattern recognition systems 
    PERJU, Veacheslav L.; CASASENT, David P.; MARDARE, Igor A.; CHIRCA, Oleg V. (SPIE, 2007)
    A method of the recognition reliability estimation in the optical pattern recognition systems (OPRS) is described, based on of the similarity measures differences (SMD). It was theoretically justified and experimentally ...
  • Experimental Identification of the Mathematical Model of the DC Motor based on the Genetic Algorithm 
    MELNIC, Vladimir; COJUHARI, Irina (Tipografia "Valinex", 2020)
    In this paper it is presented the experimental identification of the mathematical model of the DC motor. The experimental curve of the DC motor was raised and it was proposed to be approximated with transfer function with ...
  • The Experimental Method for Tuning of PID Controller Based on the Maximum Stability Degree Criterion 
    FIODOROV, Ion; COJUHARI, Irina; IZVOREANU, Bartolomeu; MORARU, Dumitru; BOTNARU, Sorin; MELNIC, Radu (IEEE, 2018)
    An experimental method for tuning of the PID controller and its variations, using the critical regime parameters of the closed loop control system is proposed in this paper. The method was developed based on the maximum ...
  • Experimental observation of the triplet spin-valve effect in a superconductor-ferromagnet heterostructure 
    ZDRAVKOV, V. I.; KEHRLE, J.; OBERMEIER, G.; LENK, D.; KRUG VON NIDDA, H.-A.; MÜLLER, C.; KUPRIYANOV, M. Yu.; SIDORENKO, A. S.; HORN, S.; TIDECKS, R.; TAGIROV, L. R. (American Physical Society, 2013)
    The theory of superconductor-ferromagnet heterostructures with two ferromagnetic layers predicts the generation of a long-range, odd-in-frequency triplet pairing at noncollinear alignment (NCA) of the magnetizations of the ...
  • Experimental validation of thermal model of MM-Wave frequency multipliers 
    OPREA, I.; COJOCARI, O.; SOBORNYTSKYY, M.; HARTNAGEL, H. L. (IEEE, 2013)
    This paper presents a method for estimation of junction temperature of a Schottky diode used in a recently developed frequency doubler to 332 GHz. Our particular interest was the validation of the thermal model of the diode ...
  • Expert System for Medical Diagnosis. Fuzzy Logic 
    TROCIN, Caterina; BRAGARENCO, Andrei; SONTEA, Victor (Institute of Mathematics and Computer Science of the Academy of Sciences of Moldova, 2011)
    Fuzzy systems are considered a special case of expert systems that provides a flexible method for handling uncertainty and imprecise knowledge presentation. This article presents the design steps of an expert system based ...
  • Expertiza tehnico-economică a bunurilor imobile în cadrul managementului imobiliar prin prisma obiectivelor de dezvoltare durabilă 
    PALADI, A. (Universitatea Agrară de Stat din Moldova, 2022)
    The main objective of this paper serves the brief analysis of the activity of technical and economical expertise of real estate in terms of the contribution of this activity to the basic objectives of sustainable development. ...
  • Expropriation as a Way for Protecting the Architectural Heritage 
    ALBU, Svetlana; LEȘAN, Anna (Scientific Research Publishing Inc., 2021)
    The protection of the national cultural heritage consists of all measures of a scientific, legal, administrative, financial, fiscal, and technical nature, designed to ensure the identification, research, inventory, ...
  • Expropriation of real estate in the framework of consistency with international norms 
    LESAN A. I. (Экономика и предпринимательство, 2021)
    The process of real estate expropriation is found in all countries; however, it differs from one country to another by the name of the expropriation process or by the purpose definition. Therefore, the article includes the ...
  • Extinction and Recovery of Superconductivity by Interference in Superconductor/Ferromagnet Bilayers 
    SIDORENKO, A. S.; ZDRAVKOV, V. I.; KEHRLE, J.; MORARI, R.; ANTROPOV, E.; OBERMEIER, G.; GSELL, S.; SCHRECK, M.; MÜLLER, C.; RYAZANOV, V. V.; HORN, S.; TIDECKS, R.; TAGIROV, L. R. (Springer Nature Switzerland, 2009)
    In superconductor–ferromagnet (S/F) metallic contacts, the superconducting condensate penetrates through the S/F interface into a ferromagnetic layer. In contrast to the conventional S/N proximity effect, the pairing wave ...
  • Extraction of phenolic and flavonoid compounds from solid wastes of grape seed oil production by cold pressing 
    SAYKOVA, Ilonka; TYLKOWSKI, Bartosz; POPOVICI, Cristina; PEEV, Georgi (University of Chemical Technology and Metallurgy, Sofia, Bulgaria, 2018)
    The objective of this investigation was to assess the advantages of phenolics removal from the grape seeds coldpressing waste in comparison with their extraction from whole seeds. Series of batch solid-liquid experiments ...
  • Fabrication and characterization of an individual ZnO microwire-based UV photodetector 
    CHAI, G. Y.; CHOW, L.; LUPAN, O.; RUSU, E.; STRATAN, G. I.; HEINRICH, H.; URSAKI, V. V.; TIGINYANU, I. M. (ELSEVIER, 2011)
    In this paper, a single ZnO microwire-based photodetector for the monitoring of ultraviolet (UV) radiation is described. Single crystal ZnO microwires were synthesized using a chemical vapor deposition (CVD) on the Si or ...
  • Fabrication and characterization of Zn–ZnO core–shell microspheres from nanorods 
    LUPAN, O.; CHOW, L.; CHAI, G.; HEINRICH, H. (ELSEVIER, 2008)
    We present a new method to synthesize ZnO nanorods on zinc spheres to form a core–shell structure. Selective self-assembly growth of a shell with ZnO nanorods on a metallic Zn microsphere core has been accomplished via ...

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