Browsing 2019 by Title

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  • Near-edge Optical Properties of Layered Tin Sulfide (Selenide) Crystals 
    ZALAMAI, V. V.; TIRON, A. V.; RUSU, E. V.; MONAICO, E. V.; SYRBU, N. N. (Tehnica UTM, 2019)
    Absorption (K), reflection (R) and wavelength modulated transmission (ΔT/Δλ) spectra in SnS, SnS2 and SnSe crystals were investigated in temperature range from 300 to 10 K. Excitonic states were discovered in all investigated ...
  • New Areas of Research and Applications for GaN 
    TIGINYANU, Ion (Tehnica UTM, 2019)
    Gallium nitride, a wide-bandgap semiconductor compound (Eg = 3.4 eV at 300 K), has in the last two decades registered a fascinating increase in the crystalline quality of epitaxial layers determining its leading role in ...
  • A Novel Nanocomposite (SR/HA/-nZnO) Material for Medical Application 
    MAJDI, H. Sh.; SAUD, A. N.; Al-MAMOORI, M. H. (Tehnica UTM, 2019)
    In this work, hydroxyapatite synthesized by sol-gel technique. Ca(NO3)2.4H2O and (NH4)2HPO4 used as precursors, and nano ZnO was prepared and modify the surface using Oleic acid to get uniform distribution Within the matrix ...
  • Optical Activity in Mn Doped As2S3 Glasses 
    ZALAMAI, V. V.; TIRON, A. V.; IOVU, M. S.; SYRBU, N. N. (Tehnica UTM, 2019)
    Spectral dependences of transmittance (T) and wavelength modulated transmittance (ΔT/Δλ) of As2S3 layers doped by manganese (Mn) of different concentrations (0–0.5%) were investigated at temperatures from 10 to 300 K. ...
  • An Optimal Path Planning Proposal for Motion Robots with Specific Constraints Applicable in Biomedical Engineering 
    CORCIOVĂ, C.; TURNEA, M.; GHEORGHIŢĂ, A.; AROTĂRIŢEI, D. (Tehnica UTM, 2019)
    Optimal path planning for motion robots is an interesting research subject with many applications in various domains including biomedical applications when a mobile robot can distribute medication for patients. A fuzzy ...
  • Packing Conditions of Optical Separated CsI:Tl Scintillator by Silicon Collimator 
    OHTAKE, R.; TABATA, K.; NISHIZAWA, J.; KOIKE, A.; AOKI, T. (Tehnica UTM, 2019)
    We have been developing a scintillator type X-ray imaging detector. The spatial resolution of this type detector is lower than that of direct conversion type detectors. This is because X-ray scintillation light spreads in ...
  • Peculiarities of Surface Relief Grating Formation in Nanomultilayer Structures Based on As2S3-Se Chalcogenide Glasses 
    MESHALKIN, A.; PAIUK, O.; ACHIMOVA, E.; STRONSKI, A.; ABASKIN, V.; PRISACAR, A.; TRIDUH, G.; KORCHOVYI, A.; OLEKSENKO, P. (Tehnica UTM, 2019)
    Chalcogenide glasses nanomultilayer structures based on As2S3-Se were used for direct surface relief grating (SRG) formation by holographic recording. Grating recording process in As2S3-Se nanomultilayer structure for ...
  • Peierls Structural Transition in Organic Crystals of TTT2I3 with Intermediate Carrier Concentration 
    ANDRONIC, S. C.; SANDULEAC, I. I.; CASIAN, A. I. (Tehnica UTM, 2019)
    The Peierls structural transition in the nanostructured tetrathiotetracene-iodide crystal with intermediate carrier concentration is studied in 2D approximation. In the frame of the physical model, two the most important ...
  • Phenomena of Radiative Recombination in Single Crystals of Cadmium Thiogallate with Cadmium (CdGa2S4:Cd) or Sulfur (CdGa2S4:S) Excess 
    ARAMA, E.; PANTEA, V.; SHEMYAKOVA, T.; VOVC, V. (Tehnica UTM, 2019)
    The experimental results related to the influence of non-stoichiometry on the emission spectra of CdGa2S4 single crystals exited by accelerated electrons are presented. Cadmium thiogallate single crystals with the excess ...
  • Photocatalytic Degradation of Methylene Blue with Composite NanocrystallineTiO2+diatomite 
    DATSKO, T. Ya.; ZELENTSOV, V. I.; DVORNIKOV, D. P. (Tehnica UTM, 2019)
    In this study photocatalytic activity of the prepared nano-sized TiO2-based composite was tested by decolorisation/degradation of Methylene blue (MB) as a model pollutant under UV illumination. The composite was synthesized ...
  • Polarization Holographic Recording on Photosensitive Polymers 
    ACHIMOVA, E.; ABASKIN, V.; MESHALKIN, A.; PRISACAR, A.; LOGHINA, L.; VLCEK, M.; YAKOVLEVA, A. (Tehnica UTM, 2019)
    In this paper we report on direct holographic recording of surface relief gratings in carbazole-based polymers. Evolution of the transmittance spectrum and diffraction efficiency upon irradiation with 532 nm laser light ...
  • Polarization Tomography of Synovial Fluids Polycrystalline Layers 
    PROTSIUK, V. V.; VASIYK, V. L.; VASYLCHISHYN, Y. M.; USHENKO, O. G.; SHAPLAVSKIY, M. V.; BODNAR, O. B.; DUBOLAZOV, A. V.; USHENKO, Yu. O.; TOMKA, Yu. Ya. (Tehnica UTM, 2019)
    The experimental and diagnostic capabilities of the polarization tomography method of linear birefringence distributions of polycrystalline films of the synovial fluid of a human joint in the differentiation of its ...
  • Polysaccharide (Nano)Composites (Invited) 
    HARABAGIU, V.; ROTARU, R.; HUMELNICU, A. C. (Tehnica UTM, 2019)
    The last decades, polysaccharides are more and more investigated either as biodegradable and biocompatible matrices for drug delivery and for tissue engineering systems or as renewable substitutes of synthetic polymers ...
  • Portable Campimeter to Evaluate Visual Field Modifications of Subjects with Low Vision State 
    BARITZ, M. I.; APOSTOAIE, M. G.; LAZAR, A. M. (Tehnica UTM, 2019)
    The low vision state that can be installed at the visual function level causes a change in a series of important visual system parameters, as well as a decrease in the quality of life of human subjects. Mostly, lowering ...
  • A Positioning Mechanism Based on MEMS-INS/GPS and ANFIS Data Fusion for Urban Life Mobility Improvement 
    GRIGORIE, L. T.; JULA, N.; CORCĂU, C. L.; ADOCHIEI, I. R.; LARCO, C.; MUSTAŢĂ, S. M. (Tehnica UTM, 2019)
    To achieve a positioning mechanism for urban life mobility improvement, a signal processing algorithm was tuned, using an ANFIS (Adaptive-Neuro-Fuzzy-Inference System) data fusion algorithm, with the experimental data ...
  • The Procedure of Bone Cells Obtaining, Culture and Identification 
    JIAN, M.; COBZAC, V.; MOSTOVEI, A.; NACU, V. (Tehnica UTM, 2019)
    Isolation of bone cells represent a major importance in laboratory research and clinical practice. This work was conducted on six 6±1.5 months Wistar rats from which the diaphysis of long tubular bones were harvested, ...
  • Profile Forming of Infrared Cabin User`s Biomedical Indicators 
    MEZHENNAYA, M. M.; VOROBEY, A. V.; DRAPEZA, V. Y.; OSIPOV, A. N.; DICK, S. K.; THOSTOV, M. X-M. (Tehnica UTM, 2019)
    The construction and methodology of a infrared cabin developed by the authors for activation of human body functional reserves are described in the article. A device is equipped with a system of human physiological parameter ...
  • QDs Doped Azopolymer for Direct Holographic Recording 
    LOŞMANSKII, C.; ACHIMOVA, E.; ABASKIN, V.; MESHALKIN, A.; PRISACAR, A.; LOGHINA, L.; VLCEK, M.; YAKOVLEVA, A. (Tehnica UTM, 2019)
    This paper describes a direct holographic recording of surface relief gratings in QD doped carbazole-based polymers. The evolution of the transmittance spectrum and diffraction efficiency upon irradiation with 473 nm ...
  • Qualitative Method to Control Toxic Impurities in Drinking Water 
    KULIKOVA, O.; SIMINEL, A.; MICU, A.; SIMINEL, N. (Tehnica UTM, 2019)
    This paper presents the capabilities of the laser spectroscopy method for monitoring the concentration of dissolved organic impurities of toxic substances. The method of laser fluorometry that is based on the principle of ...
  • Quantum Interferences with Equidistant Three-level Quantum Wells 
    CEBAN, V.; MACOVEI, M. A. (Tehnica UTM, 2019)
    A three-level ladder-type equidistant quantum-well with perpendicular transition dipoles, tuned in resonance with an optical cavity have been investigated in the good cavity limit. Under the laser pumping, a quantum ...

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