Browsing Colecția instituțională by Title

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  • Free and bound exciton luminescence of ZnP2 –D48 
    SYRBU, N. N.; STAMOV, I. G.; DOROGAN, A. V.; NEMERENCO, L. L. (Academy of Sciences of Moldova, 2007)
    Thin structure of polarized absorption spectra of indirect transitions with phonon emission in the ZnP2 crystals is investigated. In the luminescence spectra, radiation of phonons at annihilation of free excitons ...
  • Free excitons in strained MOCVD-grown GaN layers 
    SYRBU, N. N.; TIGINYANU, I. M.; URSAKI, V. V.; ZALAMAI, V. V.; POPA, Veaceslav; HUBBARD, S. M.; PAVLIDIS, Dimitris (Cambridge University Press, 2003)
    GaN layers grown on sapphire substrates were characterized using high resolution optical reflectivity and absorption spectroscopy in the region of ground and excited exciton states. The main exciton parameters are deduced ...
  • Free-Standing Large-Area Nanoperforated Gold Membranes Fabricated by Hopping Electrodeposition 
    MONAICO, Eduard V.; MONAICO, Elena I.; URSAKI, Veaceslav V.; TIGINYANU, Ion M. (The Electrochemical Society, 2020)
    A room-temperature two-step cost-effective electrochemical technology is proposed for the preparation of free-standing Au nanomembranes. A thin Au film with the thickness less than 100 nm was deposited by pulsed electroplating ...
  • Frenkel excitons and band structure in Sb2S3 single crystals 
    BERIL, S. I.; STAMOV, I. G.; TIRON, A. V.; ZALAMAI, V. V.; SYRBU, N. N. (Elservier, 2020)
    Anisotropy of optical properties of Sb2S3 single crystals was investigated at 11 and 300 K. Ground and excited states of four excitonic states (A, B, C and D) were found out. Parameters of observed excitons and bands V1 – ...
  • Frenkel excitons and the energy bands structure in crystals PbGa2S4 
    STAMOV, I. G.; SYRBU, N. N.; URSAKI, V. V.; PARVAN, V. I.; ZALAMAI, V. V. (Institutul de Fizică Aplicată al AŞM, 2012)
    On the basis of lead tiogalat (PbGa2S4) was created the active elements for lasers which allow to control the generation spectroscopic properties of lasers and parameters of the laser radiation. In these crystals were found ...
  • Fresnel lens-type energy concentrator for space-based solar power systems 
    SERGENTU, Vladimir; URSAKI, Veacheslav; IOIŞER, Anatolii; ADAR, Eliezer (Romanian Academy Publishing House, 2018)
    In this paper a new concept of designing Fresnel lens concentrators on the basis of magnetic microwires with a complex spatial distribution of their density is proposed. The optical properties of microwires are analyzed ...
  • Frinarea emisiei spontane colective prin intermediul efectelor de interferenţă cuantică 
    CIORNEA, Viorel; BARDEŢCHI, Profirie; MACOVEI, Mihai (Universitatea de Stat „Alecu Russo“ din Bălţi, 2006)
    Autorii cercetează emisia spontană colectivă a unui sistem atomar format din două particule spaţial separate. Se demonstrează ca efectele de interferenţă cuantică ce apar între diferite canale de emisie spontană şi ...
  • From 1D to 2D Cd(II) and Zn(II) Coordination Networks by Replacing Monocarboxylate with Dicarboxylates in Partnership with Azine Ligands:Synthesis, Crystal Structures, Inclusion, and Emission Properties 
    KRAVTSOV, Victor Ch.; LOZOVAN, Vasile; SIMINEL, Nikita; COROPCEANU, Eduard B.; KULIKOVA, Olga V.; COSTRIUCOVA, Natalia V.; FONARI, Marina S. (MDPI, Basel, Switzerland, 2020)
    Eight mixed-ligand coordination networks, [Cd(2-aba)(NO3)(4-bphz)3/2]n n(dmf) (1), [Cd(2-aba)2(4-bphz)]n 0.75n(dmf) (2), [Cd(seb)(4-bphz)]n n(H2O) (3), [Cd(seb)(4-bpmhz)]n n(H2O) (4), [Cd(hpa)(3-bphz)]n (5), [Zn(1,3-bdc) ...
  • From Java to Python: navigating the world of programming languages 
    CRAVCENCO, Dmitrii; BUJILOV, Dmitrii; CIORNII, Alexandr (Universitatea Tehnică a Moldovei, 2023)
    In today's fast-paced digital world, understanding how modern IT is built has become crucial for businesses and individuals alike. The goal of this article is to provide readers with a basic understanding of the process ...
  • From linear to circular fashion: is it new trend or necessity? 
    SCRIPCENCO, Angela; PASHKEVICH, Kalina (Kyiv National University of Technology and Design, 2020)
    We live in turbulent world. Issues such as climate change, unlimited use of natural resources and work forces have initiated concerns within the wider society about the way the fashion industry currently operates. There ...
  • From photonic crystals to metamaterials: new challenges 
    TIGINYANU, I. M. (Institutul de Fizică Aplicată, AŞM, 2006)
    Photonic crystals represent periodic dielectric structures designed to control the flow of electromagnetic radiation. Photonic crystals can be viewed as a subclass of a larger family of material systems called metamaterials ...
  • From randomized clinical trials (RCTS) to artificial intelligence (AI) – history and methodological challenges 
    ANTES, Gerd (Technical University of Moldova, 2024)
    From 1991 to 2020 a considerable number of quality devices (i. e. Equator [2] have been developed and implemented, for the quality of all steps of trials from planning to implementing the knowledge derived from results. ...
  • Fröhlich modes in gan columnar nanostructures 
    TIGINYANU, I. M.; SARUA, A.; IRMER, G.; MONECKE, J.; HUBBARD, S. M.; PAVLIDIS, D.; VALIAEV, V. (American Physical Society, 2001)
    GaN columnar nanostructures fabricated by electrochemical dissolution of bulk material have been studied by micro-Raman spectroscopy. The anodization induces an increase in the intensity of Raman scattering accompanied by ...
  • Fröhlich modes in porous III-V semiconductors 
    SARUA, A.; MONECKE, J.; IRMER, G.; TIGINYANU, I. M.; GÄRTNER, G.; HARTNAGEL, H. L. (IOP Publishing, 2001)
    Porous GaP, InP and GaAs structures fabricated by MeV ion-implantation-assisted electrochemical etching were investigated by Raman and Fourier transform infrared spectroscopy. Fröhlich modes in the frequency gap between ...
  • Fröhlich vibrational modes in porous ZnSe studied by Raman scattering and Fourier transform infrared reflectance 
    IRMER, G.; MONAICO, E.; TIGINYANU, I. M.; GÄRTNER, G.; URSAKI, V. V.; KOLIBABA, G. V.; NEDEOGLO, D. D. (IOP Publishing, 2009)
    Arrays of parallel pores with a diameter of around 60 nm have been introduced by anodic etching in ZnSe single crystals with a free electron concentration of 4 × 1017 cm−3. Porosity-induced Fröhlich vibrational modes were ...
  • Fructele de mere în faza timpurie de coacere – materie primă pentru obținerea acidifiantului natural 
    CRUCIRESCU, Diana (2019)
    Fructele de mere verzi (necoapte) constituie cca 20 % din rod și nu se valorifică în scop alimentar. Acestea sunt de regulă înlăturate de pe copaci prin operația agricolă de normare a încărcăturii de rod pe pom. În lucrarea ...
  • Fructele unabi – ingredient alimentar funcţional 
    VĂDĂNESCU, Natalia (Tehnica UTM, 2020)
    În prezent, în tenologia alimentelor o mare importanță se acordă utilizării produselor îmbogățite cu substanțe biologic active de origine vegetală. Un produs de perspectivă de origine vegetală cu aceste caracteristici ...
  • A Full Single-Quantum Radiative Recombination of Biexcitons Due to Exciton—Biexciton Interaction 
    PETRASHKU, K. G.; RUSSU, S. S.; KHADZHI, P. I. (John Wiley & Sons, Inc., 1980)
    The single-quantum annihilation process of the biexciton as a whole at the inelastic collision of the biexciton with an exciton is studied. Analytic expressions for the spectral and temperature dependence of the transition ...
  • Full-switching FSF-type superconducting spin-triplet magnetic random access memory element 
    LENK, D.; MORARI, R.; ZDRAVKOV, V. I.; ULLRICH, A.; KHAYDUKOV, Yu; OBERMEIER, G.; MÜLLER, C.; SIDORENKO, A. S.; NIDDA von, H.-A. Krug; HORN, S.; TAGIROV, L. R.; TIDECKS, R. (American Physical Society, 2017)
    In the present work a superconducting Co/CoOx/Cu41Ni59/Nb/Cu41Ni59 nanoscale thin film heterostructure is investigated, which exhibits a superconducting transition temperature, Tc, depending on the history of magnetic field ...
  • Functional apparel products for premature babies 
    DANILA, Victoria; IROVAN, Marcela; BALAN, Stela (Romanian Inventors Forum, 2016)
    Functional apparel products for premature babies intended for putting the child in the incubator. The products are made of natural materials featuring constructive solutions. These are tailored to technological, physiological ...

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