Browsing Colecția instituțională by Title

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  • Optical reservoir computing: prospects of using SUB-10 picosecond lasers 
    ALEXANDRU, Burlacu (Tehnica UTM, 2020)
    Training neural networks is hard. The industry is approaching the limits of siliconbased computing, both in terms of transistor size and chip dimensions. There are already examples of technologies that allow computations ...
  • Optical spectra and electroabsorption of CdP2 and CdP4 single crystals 
    RADAUTSAN, S. I.; SYRBU, N. N.; TESLEVAN, V. E.; CHUMAK, I. V. (WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim, 1973)
    The anisotropy of the absorption and electroabsorption spectra of CdP2 and CdP4, single crystals has been investigated. A number of interband gaps has been determined and specified. The energies and the type of phonons ...
  • Optical spectra and energy band structure of AgAsS2 crystals 
    STAMOV, I. G.; SYRBU, N. N.; URSAKI, V. V.; PARVAN, V. (ELSEVIER, 2012)
    Ground and excited states of three exciton series are observed in the region of fundamental absorption edge of AgAsS2 crystals. The contours of exciton reflection spectra are calculated and the main parameters of excitons ...
  • Optical spectra and energy band structure of single crystalline CuGaS2 and CuInS2 
    LEVCENKO, S.; SYRBU, N. N.; TEZLEVAN, V. E.; ARUSHANOV, E.; DOKA-YAMIGNO, S.; SCHEDEL-NIEDRIG, Th.; LUX-STEINER, M. Ch. (IOP Publishing, 2007)
    The reflection spectroscopy of chalcopyrite CuGaS2 and CuInS2 single crystals has been applied for light polarized perpendicular () and parallel () to the optical axis in the photon energy range between 1.5 and 6 eV at 77 ...
  • Optical spectra and energy band structure of single crystalline CuGaS2 and CuInS2 
    SOBOLEV, V. V.; SYRBU, N. N. (WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim, 1972)
    The anisotropic spectra of edge absorption, reflection, and photoconductivity of the monoclinic ZnP2, and ZnA2, crystals have been experimentally investigated at 293 and 77 °K. The group-theoretical calculations of selection ...
  • Optical spectra in the region of exciton resonances in quantum wells and quantum dots of In0.3Ga0.7As/GaAs heterostructures 
    SYRBU, N. N.; DOROGAN, V.; DOROGAN, A.; VIERU, T.; URSAKI, V. V.; ZALAMAI, V. V. (ELSEVIER, 2012)
    The transparency, reflection and luminescence spectra of In0.3Ga0.7As structures with 8nm thickness and quantum wells limited by the barrier layer GaAs of a 9nm (upper layer) and 100nm (bottom layer) thickness had been ...
  • Optical spectra of TlGaS2 crystals 
    NEMERENCO, L.; SYRBU, N. N.; DOROGAN, V.; BEJAN, N. P.; ZALAMAI, V. V. (Elservier, 2016)
    Wavelength modulated reflection spectra measured at temperatures 14K and 300K 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 B3u ...
  • Optical-electronic moments feature-based recognition system controlled by parameters of the input images 
    PERJU, Veacheslav L.; CASASENT, David P.; PERJU, Veacheslav V.; ZAVROTSCKI, Serghei N. (SPIE, 2003)
    The new methods of invariant pattern recognition (IPR), based on the effective calculation of image moment features are presented. It is described the special purpose multiprocessor computer system, which realizes the ...
  • Optical-electronic multiprocessors computer systems controlled by input images parameters 
    PERJU, Veacheslav L.; CASASENT, David P. (SPIE, 2005)
    We present a new class of optical-electronic reconfigurable image processing systems, controlled by the parameters of the input image. The systems use multiprocessors and are distributed. We describe two different optical ...
  • Optical-electronic pattern recognition system based on the image's logarithmic chord transformation method 
    PERZHU, Veacheslav L.; QURAU, Adrian V.; SARARICIUC, Dorian I. (International Society for Optics and Photonics (SPIE), 1997)
    A new kind of the image representation - logarithmic hord transformation of the images (LHTI) is suggested. A structures of an optical-electronic processor, performing operation of LHTI and of an image processing computer ...
  • Optical-electronic systems for the fingerprints ' recognition 
    PERJU, Veacheslav L.; CASASENT, David P.; PERJU, Veacheslav V.; SARANCIUC, Dorian I. (Society of Photo-Optical Instrumentation Engineers (SPIE), 2019)
    There are presented the structures of the special purpose mono-channel and multi-channel optical-electronic systems and are described computing processes in the systems at the realization of the different fingerprints ...
  • Optical-electronic technologies in materials analysis 
    PERJU, Veacheslav L.; CASASENT, David P.; FESHCHENKO, Valeriy S.; FESHCHENKO, Lubov V. (SPIE, 2005)
    It is proposed a new optical electronic approach for effective, simple and non expensive testing of the materials. An optical correlator is used for high speed features extraction, which characterize the distribution of ...
  • Optimal Algorithm for Optimization Problems with Special Restriction 
    GĂRLĂ, Eugeniu (Bons Offices, 2018)
    The present paper analyses a class of nonlinear optimization problems with special restrictions, we propose a direct method for solving the auxiliary problem, for which we calculate complexity, we also assesses the maximum ...
  • Optimal Control System Synthesis Based on Multi-controllers Architecture 
    ABABII, Victor; BALMUS, Ion; CEBAN, Gheorghi; MELNIC, Radu (Stefan cel Mare University of Suceava, Romania, 2012)
    This paper offers a solution to the problem of optimal control system synthesis based on uniform multicontroller architecture. For this purpose the equations that describe the control system are decomposed into a set of ...
  • The optimal dimensional design of machining technologies 
    TOCA, Alexei; STRONCEA, Aurel; STÎNGACI, Ion; RUȘICA, Ion (EDP Sciences, 2018)
    The paper discusses the design methodology of optimal technological processes of machining, bearing in mind that these processes are related to discrete processes. Discreteness is manifested at different levels: the process ...
  • Optimal solution of weak spots problem in a grid system by means of facts devices 
    RADILOV, Tudor (University of Craiova, 2011)
    Electrical power system functioning is permanently exposed to different disturbances which cause the regime parameters change. Every grid system contains elements whose regime parameters variations influence system’s ...
  • The optimal value of one monotone method divisor for PR voting systems 
    BOLUN, Ion; CEBOTARI, Sergiu (Institutul de Matematică şi Informatică al AŞM, 2013)
    It is described the methodology and determined by simulation the optimal value of the divisor of the Mixed monotone method for decision making by voting with proportional representation – method that exceeds the widely ...
  • Optimality of the Machining Process Based on the Mutual Influence of Design and Technological Dimension Relations 
    TOCA, Alexei; STINGACI, Ion (Trans Tech Publications Ltd, 2014)
    In the given work it is shown, that at machining the technological dimensional structures are optimum if they are similar to the design dimensional structure of a detail. The conditions of the locating and fastening, and ...
  • Optimizarea clădirilor din punct de vedere energetic 
    GRIȚCAN, Cristian (Universitatea Tehnică a Moldovei, 2023)
    Odată cu creșterea cererii pentru design durabil și clădiri verzi, performanța clădirii are o influență mai mare asupra deciziilor de proiectare. Deciziile de proiectare privind învelișul clădirii, în special cu privire ...
  • Optimizarea compoziţiei din culturi leguminoase şi cerealiere pentru fabricarea produselor extrudate 
    ŢISLINSCAIA, Natalia; PODOGOVA, Marina; ROTARENCO, Zinaida (Academia de Ştiinţe a Moldovei, 2008)
    One of the directions of mixed products production is the search of the new sources vegetal proteins. A promising source of proteins is the chickpea (Cicer arietinum L.). The obtained mix from chickpea and cor permits to ...

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