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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  • A new propylamine sensor using artificial dimorphite 
    TSIULYANU, D.; MARIAN, S.; GUBA, M.; POTJE-KAMLOTH, K.; LIESS, H.-D. (IEEE, 1998)
    The sandwich metal-dimorphite(As/sub 4/S/sub 3/)-metal structure is used as a sensor for detection of propylamine (P/sub r/NH/sub 2/) vapor. The gas induced shifts of the current-voltage characteristics as well as transient ...
  • A new structural approach for uniform sub-micrometer anode metallization of planar THz Schottky components 
    COJOCARI, O.; MOTTET, B.; RODRIGUEZ-GIRONES, M.; BIBER, S.; MARCHAND, L.; SCHMIDT, L.-P.; HARTNAGEL, H. L. (IOP Publishing, 2004)
    This paper presents the evaluation of a Schottky contact technology based on electrochemical metal deposition. The results of a long-term systematic investigation and optimization of the anode formation process to improve ...
  • New structure of photoreceivers for optic communications 
    DOROGAN, Valerian V.; VIERU, Tatiana S.; DOROGAN, Andrei V. (SPIE, Society of Photo-Optical Instrumentation Engineers, 2005)
    New p-i-n photodiodes on the basis of InP-InGaAs-InGaAsP heterostructures for optic communications, possessing original characteristics, are presented in the paper. Their specific photosensibility was achieved by placing ...
  • 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 ...
  • Ni2+–Fe3+ cyanometallate structures covalently embedded in silica: Influence of the blocking ligand at Ni2+ 
    FELBERMAIR, Elisabeth; AKBARZADEH, Johanna; PETERLIK, Herwig; SIDORENKO, Andrey; PASCHEN, Silke; SCHUBERT, Ulrich (Elservier, 2019)
    Ni(II)/Fe(III) cyanometallate structures with Si(OR)3-substituted bis(2-aminoethyl)-1,3-propanediamine or 1,4,8,11-tetraazacyclotetradecane (cyclam) blocking ligands at Ni(II) were prepared and embedded in SiO2 by means ...
  • Nicolae Macarenco – artist reprezentativ al graficii satirice 
    ADASCALIŢA, Lucia (Institutul Patrimoniului Cultural, 2021)
    A prominent figure in the field of satirical graphics in the Republic of Moldova, Nicolae Macarenco, throughout his artistic career, conceived with great skill and dedication book illustrations for literary works signed ...
  • Nitrogen dioxide sensing properties of tellurium based films by thermal treatment 
    TSIULYANU, A.; MARIAN, S.; PUSHCACH, B.; TSIULYANU, D.; LIESS, H.-D. (IEEE, 2003)
    Influence of annealing on the electrical and sensing properties toward NO/sub 2/ of tellurium based films were investigated. The annealing at temperatures more than 100/spl deg/C causes a sharp decrease both of electrical ...
  • Nitrogen oxides and ammonia sensing characteristics of SILAR deposited ZnO thin film 
    LUPAN, O. I.; SHISHIYANU, S. T.; SHISHIYANU, T. S. (ELSEVIER, 2007)
    Pure and Sn, Ni doped ZnO thin films were deposited on glass substrates using a novel successive ionic layer adsorption and reaction (SILAR) method at room temperature. Microstructures of the deposited films were optimized ...
  • No Sentiment is an Island 
    BOBICEV, Victoria; SOKOLOVA, Marina (Springer Nature Switzerland, 2015)
    In this study we propose a new method to classify sentiments in messages posted on online forums. Traditionally, sentiment classification relies on analysis of emotionally-charged words and discourse units found in the ...
  • Non Standard Treebank Romania Republic of Moldova in the Universal Dependencies 
    MĂRĂNDUC, Cătălina; BOBICEV, Victoria ("VALINEX" SRL, 2017)
    Morphological and syntactic annotated corpora are very important for language computerization. A Dependency Treebank was created in 2007 at the Al. I. Cuza University. 4,500 sentences of it were introduced into the Universal ...
  • Non-Linear Raman Scattering in I-III2-VI4 Compounds 
    FOMIN, V. M.; TIGINYANU, I. M.; URSAKI, V. V. (IOP Publishing, 1993)
    The paper presents an experimental substantiation of the theory (based on the optical vibration anharmonism) of non-linear Raman scattering (RS) in defective II-III2-VI4 compounds. In the transparency region of those ...
  • Non-planar nanoscale p–p heterojunctions formation in ZnxCu1−xOy nanocrystals by mixed phases for enhanced sensors 
    LUPAN, Oleg; CRETU, Vasilii; POSTICA, Vasile; POLONSKYI, Oleksandr; ABABII, Nicolai; SCHÜTT, Fabian; KAIDAS, Victor; FAUPEL, Franz; ADELUNG, Rainer (ELSEVIER, 2016)
    The copper oxides are advanced materials due to their remarkable sensing, optical, electrical, thermal and magnetic performances. Nanostructuring and doping of copper oxides enhance further the possible features of these ...
  • Non-Standard Treebank Parsing 
    BOBICEV, Victoria; MĂRĂNDUC, Cătălina (Tipografia "Valinex", 2020)
    We report on our ongoing work on Dependency Treebank development. The corpus has been affiliated with Universal Dependencies (UD) project as UD Romanian-Nonstandard Dependency Treebank; it contains 26225 sentences, 572436 ...
  • Nonlinear dynamics of quantum dots lasers under the influence of double cavity external feedback 
    OLOINIC, T.; RUSU, S.; TRONCIU, S. V. (Academia de Ştiinţe a Moldovei, 2016)
    This paper reports results on investigations of the dynamical behavior of a semiconductor laser with quantum dots active medium under the influence of a feedback from double external cavity.
  • Nonlinear Dynamics of Quantum Dots Lasers with External Optical Feedback 
    TRONCIU, Vasile Z. (Institutul de Fizică Aplicată al AŞM, 2017)
    Theoretical results on investigations of the dynamical behavior of a semiconductor laser with quantum dots active medium under the influence of a feedback from double external cavity are presented.
  • Nonlinear Optical Processes Due to Polaritons and Biexcitons in a Microcavity Enclosed Quantum Well 
    BOBRYSHEVA, A. I.; SHMIGLYUK, M. I.; RUSSU, S. S. (John Wiley & Sons, Inc., 1999)
    A theoretical investigation of one- and two-photon absorption of weak probe light, respectively, by exciton-polaritons and biexcitons in the presence of a strong laser pulse in a planar microcavity embedded quantum well ...
  • Nonlinear pressure dependence of the direct band gap in adamantine ordered-vacancy compounds 
    MANJÓN, F. J.; GOMIS, O.; RODRÍGUEZ-HERNÁNDEZ, P.; PÉREZ-GONZÁLEZ, E.; MUÑOZ, A.; ERRANDONEA, D.; RUIZ-FUERTES, J.; SEGURA, A.; FUENTES-CABRERA, M.; TIGINYANU, I. M.; URSAKI, V. V. (American Physical Society, 2010)
    A strong nonlinear pressure dependence of the optical absorption edge has been measured in defect chalcopyrites CdGa2Se4 and HgGa2Se4. The behavior is due to the nonlinear pressure dependence of the direct band-gap energy ...
  • Nonlinear propagation of light in semiconductors in the presence of two-photon excitation of biexcitons 
    ROTARU, A. Kh.; TRONCHU, V. Z. (Springer Nature Switzerland, 1998)
    The steady-and nonsteady-state passage of light through a ring resonator in the presence of two-photon excitation of biexcitons from the ground state of the crystal is studied. The values of the parameters for which ...
  • Nonlinear qualities of ZnO nanostructures 
    SHVYRKOV, K.; KEDRYAVTSEV, A.; LAVROV, Sergey; SHERSTYUK, N.; MISHINA, E.; RUSU, Emil; KULYUK, Leonid (Institutul de Fizică Aplicată, 2012)
    Zinc oxide (ZnO) films and nanostructures attract increased interest of researchers due to the unique optical properties of ZnO. It has excitonic luminescence in the ultraviolet diapazon that makes it very perspective cheap ...
  • Nonlinear time-independent and time-dependent propagation of light in direct-gap semiconductors with paired excitons bound into biexcitons 
    ROTARU, A. Kh.; TRONCHU, V. Z. (Springer Nature Switzerland, 1997)
    We study a new class of nonlinear cooperative phenomena that occur when light propagates in direct-gap semiconductors. The nonlinearity here is due to a process, first discussed by A. L. Ivanov, L. V. Keldysh, and V. V. ...

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