Browsing Colecția instituțională by Title

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  • Heterostructure equivalence of step-recovery diodes for ballistic and diffusive electron resonance - a new concept for THz signal generation 
    HARTNAGEL, H. L.; SCHMIDT, L.-P.; NICOLAE, B.; OPREA, I.; SCHONHERR, D.; ONG, D. S.; SCHUR, J.; RUF, M. (IEEE, 2008)
    A heterostructure equivalent to the well-known step recovery diode principle, arranged as a double structure gives a new nonlinear device for highly efficient harmonic THz signal generation. Like in the case of step recovery ...
  • Heterostructure-based devices with enhanced humidity stability for H2 gas sensing applications in breath tests and portable batteries 
    LUPAN, Oleg; ABABII, Nicolai; MISHRA, Abhishek Kumar; BODDULURI, Mani Teja; MAGARIU, Nicolae; Alexander VAHL, Alexander VAHL; KRÜGER, Helge; WAGNER, Bernhard; FAUPEL, Franz; ADELUNG, Rainer; LEEUW, Nora H. de; HANSEN, Sandra (Elsevier, 2021)
    Semiconducting metal oxide - based gas sensors exhibit outstanding sensitivity, although humidity in the analyte typically hampers precise measurements. In this work it was shown that a 5−6 nm thin Al2O3 nano-layer is ...
  • Heterostructures on InP substrate for high-speed detection devices over a large spectral range (0.8–1.6 μm) 
    BUDIANU, Elena; PURICA, Munizer; RUSU, Emil (Elservier, 2000)
    Semiconductor heterostructures of AIIIBV type with a bandgap adjustable by composition assure a good detection in a large spectral range of 0.8–1.6 μm, compatible with optical fibre communication spectral range. The paper ...
  • HgGa2Se4 under high pressure: An optical absorption study 
    GOMIS, O.; VILAPLANA, R.; MANJÓN, F. J.; RUIZ-FUERTES, J.; PÉREZ-GONZÁLEZ, E.; LÓPEZ-SOLANO, J.; BANDIELLO, E.; ERRANDONEA, D.; SEGURA, A.; RODRÍGUEZ-HERNÁNDEZ, P.; MUÑOZ, A.; URSAKI, V. V.; TIGINYANU, I. M. (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2015)
    High-pressure optical absorption measurements have been performed in defect chalcopyrite HgGa2Se4 to investigate the influence of pressure on the bandgap energy and its relation with the pressure-induced order–disorder ...
  • Hidrocentrală 
    BOSTAN, Viorel (Agenția de Stat pentru Proprietatea Intelectuală a Republicii Moldova, 2013-07-31)
    Invenţia se referă la hidroenergetică, în special la hidrocentrale ce utilizează energia cinetică a fluxului de apă. Hidrocentrala conţine o platformă, amplasată pe două flotoare şi fixată articulat pe o bază de ţărm. Pe ...
  • Hidroizolarea şi protecţia anticorosivă a betonului rezervoarelor pentru depozitarea apelor potabile şi industriale 
    PROASPĂT, Eduard (2018)
    Scopul tezei: Sporirea rezistenței la coroziune a betonului rezervoarelor de beton armat, destinate depozitării apelor potabile și industriale, și asigurarea protecției lui suplimentară cu acoperiri polimerice, care să ...
  • Hidromotor precesional 
    BOSTAN, I.; DULGHERU, V.; CIOBANU, R.; CIOBANU, O. (Universitatea Tehnică din Cluj-Napoca, 2016)
    Hidromotorul precesional include un hidromotor si o transmisie precesională tip K-H-V, în care funcţia de mecanism de legătură a satelitului cu carcasa îndeplinesc tijele pistoanelor hidromotorului.
  • Hidromotor precesional 
    BOSTAN, Ion; DULGHERU, Valeriu; CIOBANU, Radu; CIOBANU, Oleg (Agenția de Stat pentru Proprietatea Intelectuală a Republicii Moldova, 2016-01-31)
    Invenţia se referă la construcţia de maşini hidraulice şi poate fi utilizată la construcţia hidromotoarelor cu transmisie precesională. Hidromotorul precesional conţine cilindr şi pistoane în număr de cel puţin trei cu ...
  • Hidroturbină 
    BOSTAN, Ion; DULGHERU, Valeriu; BOSTAN, Viorel; SOCHIREANU, Anatol; TRIFAN, Nicolae (Agenția de Stat pentru Proprietatea Intelectuală a Republicii Moldova, 2006-02-28)
    Invenţia se referă la energetică, şi anume la staţiile hidraulice, ce utilizează energia cinetică a fluxului apei. Turbina hidraulică conţine, amplasată pe un cadru 1, fixat pe o culee cu posibilitatea reglării poziţiei ...
  • Hierarchical Aerographite 3D flexible networks hybridized by InP micro/nanostructures for strain sensor applications 
    PLESCO, Irina; STROBEL, Julian; SCHÜTT, Fabian; HIMCINSCHI, Cameliu; BEN SEDRINE, Nabiha; MONTEIRO, Teresa; CORREIA, Maria Rosário; GORCEAC, Leonid; CINIC, Boris; URSAKI, Veaceslav; MARX, Janik; FIEDLER, Bodo; MISHRA, Yogendra Kumar; KIENLE, Lorenz; ADELUNG, Rainer; TIGINYANU, Ion (Springer Nature Limited, 2018)
    In the present work, we report on development of three-dimensional flexible architectures consisting of an extremely porous three-dimensional Aerographite (AG) backbone decorated by InP micro/nanocrystallites grown by a ...
  • High Aspect Ratio Ternary Zn1–xCdxO Nanowires by Electrodeposition for Light-Emitting Diode Applications 
    LUPAN, Oleg; PAUPORTÉ, Thierry; LE BAHERS, Tangui; CIOFINI, Ilaria; VIANA, Bruno (American Chemical Society, 2011)
    We present a combined experimental and computational approach to study Zn1–xCdxO nanowires (NWs) and their integration in light-emitting diode (LED) structures. Self-standing Zn1–xCdxO NWs have been electrodeposited on ...
  • High Education in Biomedical Engineering in Republic of Moldova 
    SONTEA, V.; RAILEAN, S.; VOVC, V.; COSTIN, H.; ZAHARIA, D.; IAVORSCHI, A. (Springer International Publishing, 2015)
    The ubiquitous aspiration to health and life propels healthcare industry as the world's biggest industrial sector. Biomedical engineering (BME) occupies a central place in healthcare industry and it is one of the few areas ...
  • High level of synthesis parallel problem-oriented TS - coordinated digital computing systems 
    KONDRATIEV, V.; BAZHANOV, Y.; BALABANOV, A. (Institute of Mathematics and Computer Science, 1998)
    The development of parallel digital computing systems (DCS) is a main direction in development of architecture of the computers wich succeets the on change of traditional principles of machines designing of consecutive ...
  • High performance ZnSe-based ultraviolet photodetectors with Cr/Au, Ni/Au and hybrid Ag-nanowire contacts 
    SIRKELI, Vadim; YILMAZOGLU, Oktay; HAJO, Ahid; NEDEOGLO, Natalia; NEDEOGLO, Dmitrii; PREU, Sascha; KÜPPERS, Franko; HARTNAGEL, Hans (Technical University of Moldova, 2024)
    Most commercial UV-photodetectors are based on Si or GaAs and the intense UV radiation induces aging effects that leads to their degradation. To solve this issue, the bulk high-resistivity ZnSe could be used for fabrication ...
  • High power 150 GHz Schottky based varactor doubler 
    MONTERO-DE-PAZ, J.; SOBORNYTSKYY, M.; HOEFLE, M.; COJOCARI, O. (IEEE, 2016)
    Presented is the design, simulation and characterization of a high power 150 GHz Schottky based varactor doubler. The designed doubler works in the 67.5 GHz-82 GHz input frequency band with an input power of 25 dBm (315 ...
  • High Power Discrete Schottky Diodes Based 275-305 GHz Transceiver for FMCW-Rada 
    MORO-MELGAR, D.; COJOCARI, O.; OPREA, I.; HOEFLE, H.; RICKES, M. (IEEE, 2018)
    A heterodyne 275-305 GHz transceiver intended for frequency modulated continuous wave radar applications is presented here. A commercial E-band active multiplication chain is used to provide the required power and frequency ...
  • High Power High Efficiency 270-320 GHz Source Based on Discrete Schottky Diodes 
    MORO-MELGAR, D.; COJOCARI, O.; OPREA, I. (IEEE, 2018)
    A 300 GHz source based on discrete Schottky diodes technology is reported in this work. The high frequency part developed by ACST consists of two high power and high efficiency doublers, one at 135-160 GHz and a second one ...
  • High resolution semiconductor switch 
    STAMOV, I.; SÎRBU, N.; DOROGAN, A. (Romanian Inventors Forum, 2019)
    The active layer of the high resolution semiconductor switch is based on single crystal compound Ag3AsS3 placed between metal electrodes.
  • High sensitive tellurium based NO2 gas sensor 
    TSIULYANU, D.; MARIAN, S.; MIRON, V.; LIESS, H.-D. (Elsevier, 2001)
    For the first time it is shown, that tellurium based thin films exhibit high sensitivity to nitrogen dioxide at room temperature. The resistance of the tellurium films decreases reversibly in the presence of NO2. The ...
  • High sensitivity and low dark current PIN photodiode with homojunction in n-InGaAaS/InP isotype heterostructure 
    BUDIANU, E.; PURICA, M.; RUSU, E.; NAN, S. (IEEE, 1997)
    The preparation and properties of Zn-diffusion homojunction InP/In/sub 0.53/Ga/sub 0.47/As photodiodes capable to operate in the 0.8-1.7 /spl mu/m wavelength range are described. These PIN photodiodes exhibit a sensitivity ...

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