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  • A high-efficient cooling tower for removing the heat generated by process plants 
    ZASAVITSKY, E. A.; KARAGENOV, D. I.; SEPTITCHI, A. IU.; SIDORENKO, A. S. (Technical University "Gheorghe Asachi" of Iași, 2020)
    Elaborarea se referă la echipamentele și unitățile industriale, dar mai precis - la eliminarea căldurii generate de instalațiile tehnologice existente în prezent. Este elaborat un turn de răcire cu circuit ...
  • The high-field galvanomagnetic effects in bicrystals of 3D topological insulator Bi 1-x - Sbx (0. 07 ≤ x ≤ 0.15) 
    MUNTYANU, F. M.; GILEWSKI, A.; ROGACKI, K.; CHISTOL, V. (Academia de Ştiinţe a Moldovei, 2014)
    We report the results of the investigations at He-liquid temperatures of the galvanomagnetic effects of twisting bicrystals of 3D topological insulator (TI) Bi1−xSbx (0.07 < x <0.15) to elucidate the peculiarities of ...
  • High-field peculiarities of galvanomagnetic quantum oscillations in Bi bicrystals with nano-width superconducting crystallite interfaces 
    MUNTYANU, F. M.; GILEWSKI, A.; NENKOV, K.; ZALESKI, A. J.; PALEWSKI, T.; CHISTOL, V. (Elsevier, 2013)
    We present the result of high-field (up to 40T) galvanomagnetic study of bismuth bicrystals with nano-width crystallite interfaces (100nm). At B>2T directed along the interface plane in the quantum oscillations spectrum ...
  • High-fields longitudinal hall effect in bi bicrystals with nano-width superconducting crystallite interfaces 
    MUNTYANU, F. M.; GILEWSKI, A.; NENKOV, K.; ZALESKI, A. J.; PALEWSKI, T.; CHISTOL, V. (Institutul de Fizică Aplicată, 2012)
    The results indicate that in bicrystals there are spin-oriented carriers which are located in spectrum of Landau levels at particular orientation of the magnetic field.
  • High-frequency nonlinear characteristics of resonant-tunnelling diodes 
    FEIGINOV, Michael; SYDLO, Cezary; COJOCARI, Oleg; MEISSNER, Peter (American Institute of Physics, 2011)
    The nonlinear response of resonant-tunnelling diodes (RTDs) is analysed theoretically at high frequencies (HFs), which are far above the diode’s tunnel-relaxation-time limit. We show that the HF I-V curve in this regime ...
  • High-Performance Gas Sensors Using Heterostructures based on Binary and Ternary Metal Oxides 
    ABABII, Nicolai; BODDULURI, Mani Teja; KRÜGER, Helge; HANSEN, Sandra; POSTICA, Vasile; LUPAN, Oleg; ADELUNG, Rainer (IEEE, 2021)
    The gas sensing properties of heterojunctions based on binary and ternary metal oxides (CuAl 2 O 4 /Al 2 O 3 /CuO/Cu 2 O, ZnAl 2 O 4 /ZnO and Zn 2 SnO 4 ) were investigated in detail and demonstrated excellent sensitivity ...
  • High-performance near-ultraviolet avalanche photodetectors based on ZnSe 
    SIRKELI, Vadim P.; NEDEOGLO, Natalia D.; NEDEOGLO, Dmitrii D.; YILMAZOGLU, Oktay; HAJO, Ahid S.; PREU, Sascha; KÜPPERS, Franko; HARTNAGEL, Hans L. (Tehnica UTM, 2018)
    This We report on high-responsivity, fast nearultraviolet avalanche photodetectors based on bulk ZnSe employing a metal-semiconductor-metal structure. A very high responsivity of 2.42 A/W and 4.44 A/W at 20 V bias voltage ...
  • High-Power MM-Wave Frequency Multipliers 
    COJOCARI, O.; MORO-MELGAR, D.; OPREA, I. (IEEE, 2019)
    A novel approach has been developed on monolithic integration of Schottky diodes with CVD diamond substrate for improved thermal dissipation. This allowed development of mmwave frequency multipliers with unmatched ...
  • High-Power MM-Wave Sources based on Schottky Diodes 
    COJOCARI, Oleg; MORO-MELGAR, Diego; OPREA, Ion; HOEFLE, Matthias; RICKES, Martin (IEEE, 2018)
    A novel approach has been developed at ACST for realization of high-power frequency multipliers in MM/SubMM-Wave range. This approach is based on discrete Schottky structures with monolithically-integrated diamond heatspreader. ...
  • High-pressure effects on the optical-absorption edge of CdIn2S4, MgIn2S4, and MnIn2S4 thiospinels 
    RUIZ-FUERTES, J.; ERRANDONEA, D.; MANJÓN, F. J.; MARTÍNEZ-GARCÍA, D.; SEGURA, A.; URSAKI, V. V.; TIGINYANU, I. M. (American Institute of Physics, 2008)
    The effect of pressure on the optical-absorption edge of CdIn2S4, MgIn2S4, and MnIn2S4 thiospinels at room temperature is investigated up to 20 GPa. The pressure dependence of their band-gaps has been analyzed using the ...
  • High-pressure optical and vibrational properties of CdGa2Se4: Order-disorder processes in adamantine compounds 
    GOMIS, O.; VILAPLANA, R.; MANJÓN, F. J.; PÉREZ-GONZÁLEZ, E.; LÓPEZ-SOLANO, J.; RODRÍGUEZ-HERNÁNDEZ, P.; MUÑOZ, A.; ERRANDONEA, D.; RUIZ-FUERTES, J.; SEGURA, A.; SANTAMARÍA-PÉREZ, D.; TIGINYANU, I. M.; URSAKI, V. V. (American Institute of Physics, 2012)
    High-pressure optical absorption and Raman scattering measurements have been performed in defect chalcopyrite (DC) CdGa2Se4 up to 22 GPa during two pressure cycles to investigate the pressure-induced order-disorder phase ...
  • High-pressure Raman scattering study of defect chalcopyrite and defect stannite ZnGa2Se4 
    VILAPLANA, R.; GOMIS, O.; PÉREZ-GONZÁLEZ, E.; ORTIZ, H. M.; MANJÓN, F. J.; RODRÍGUEZ-HERNÁNDEZ, P.; MUÑOZ, A.; ALONSO-GUTIÉRREZ, P.; SANJUÁN, M. L.; URSAKI, V. V.; TIGINYANU, I. M. (AIP Publishing LLC, 2013)
    High-pressure Raman scattering measurements have been carried out in ZnGa2Se4 for both tetragonal defect chalcopyrite and defect stannite structures. Experimental results have been compared with theoretical lattice dynamics ...
  • High-pressure study of the structural and elastic properties of defect-chalcopyrite HgGa2Se4 
    GOMIS, O.; VILAPLANA, R.; MANJÓN, F. J.; SANTAMARÍA-PÉREZ, D.; ERRANDONEA, D.; PÉREZ-GONZÁLEZ, E.; LÓPEZ-SOLANO, J.; RODRÍGUEZ-HERNÁNDEZ, P.; MUÑOZ, A.; TIGINYANU, I. M.; URSAKI, V. V. (American Institute of Physics, 2013)
    In this work, we focus on the study of the structural and elastic properties of mercury digallium selenide (HgGa2Se4) which belongs to the family of AB2X4 ordered-vacancy compounds with tetragonal defect chalcopyrite ...
  • High-Pressure Study of YVO4Nanoboxes 
    MANJÓN, F. J.; GOMIS, O.; RAY, S.; LEÓN-LUIS, S. F.; RODRÍGUEZ-MENDOZA, U. R.; LAVÍN, V.; SEGURA, A.; MARTÍNEZ-GARCÍA, D.; FERRER-ROCA, Ch. (Technical University of Moldova, 2011)
    YVO4 nanoboxes doped with Eu ions (4 at%) have been studied by means of X-ray diffraction, Raman and photoluminescence measurements under high pressure. Photoluminescence measurements in nanoboxes provide evidence that Eu ...
  • High-pressure x-ray diffraction study on the structure and phase transitions of the defect-stannite ZnGa2Se4 and defect-chalcopyrite CdGa2S4 
    ERRANDONEA, D.; KUMAR, Ravhi S.; MANJÓN, F. J.; URSAKI, V. V.; TIGINYANU, I. M. (American Institute of Physics, 2008)
    X-ray diffraction measurements on the sphalerite-derivatives ZnGa2Se4ZnGa2Se4 and CdGa2S4CdGa2S4 have been performed upon compression up to 23 GPa in a diamond-anvil cell. ZnGa2Se4ZnGa2Se4 exhibits a defect tetragonal ...
  • High-Rate Pulsed Galvanostatic Anodic Dissolution of Chromium−Nickel Steels in Electrolytes for Electrochemical Machining: The Role of Surface Temperature 
    DIKUSAR, A. I.; LIKRIZON, E. A.; DIKUSAR, G. K. (Springer Nature Switzerland, 2021)
    A pulsed galvanostatic anodic dissolution of chromium−nickel steels (types Kh18N10 (Cr18Ni10) and KhN35VT (CrNi35WT)) under the conditions of electrochemical machining is studied in chloride, nitrate, and mixed chloride−nitrate ...
  • High-speed Methods of Image Compression/Decompression 
    LAZAR, D.; CIMPOIES, I.; SOROKIN, Gh.; GRITCOV, S. (Technical University of Moldova, 2013)
    This thesis deals with the study of methods of images compression / decompression that require less hardware and time resources, compared to the classical methods. The results of the implementation of these image processing ...
  • Higher education leadership and management competences 
    BUGAIAN, Larisa (Tehnica UTM, 2020)
    The democratization of society, the transition to a market economy has caused and continues to cause changes both in the entire system of the country and in the activity of higher education institutions (HEIs) in the ...
  • Highly Conductive ZnO Thin Films Deposited Using CVT Ceramics as Magnetron Targets 
    COLIBABA, G. V.; RUSNAC, D.; FEDOROV, V.; COSTRIUCOVA, N.; MONAICO, E. V.; POTLOG, T. (Springer, Cham, 2022)
    Sintering of ZnO + Me2O3 (Me = Al, Ga, In) powder via chemical vapor transport based on HCl has been developed. The electrical properties of ZnO thin films obtained by DC magnetron sputtering of ZnO ceramic targets have ...
  • Highly Conductive ZnO Thin Films Deposited Using CVT Ceramics as Magnetron Targets 
    COLIBABA, G.V.; RUSNAC, D.; FEDOROV, V.; COSTRIUCOVA, N.; MONAICO, E.V.; POTLOG, T. (Universitatea Tehnică a Moldovei, 2021)
    Sintering of ZnO+Me2O3 (Me = Al, Ga, In) powder via chemical vapor transport based on HCl has been developed. The electrical properties of ZnO thin films obtained by DC magnetron sputtering of ZnO ceramic targets have been ...

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