IRTUM – Institutional Repository of the Technical University of Moldova

Browsing Articole din publicaţii internaţionale by Title

Browsing Articole din publicaţii internaţionale by Title

Sort by: Order: Results:

  • WID: a new Schottky-structure design for THz-applications 
    COJOCARI, O.; SYDLO, C.; HARTNAGEL, H.-L. (IEEE, 2005)
    Whisker integrated diode (WID) is a fully vertical Schottky-based structure suitable for hybrid integration in THz-systems. This paper presents design, simulation and DC-measurement results of a WID for THz-mixing application.
  • Wide bandgap aeromaterials and prospects for their applications 
    CIOBANU, Vladimir; BRANISTE, Tudor; MONAICO, Eduard; TIGINYANU, Ion (Deutschen Physikalischen Gesellschaft, 2023)
    We report on the fabrication of aeromaterials based on GaN, Ga2O3, TiO2 and Zn2TiO4 using hydride vapor phase epitaxy (HVPE) or Atomic Layer Deposition (ALD) approaches. The fabrication process is based on growth of the ...
  • Wind Energy 
    BOSTAN, Ion; GHEORGHE, Adrian; DULGHERU, Valeriu; SOBOR, Ion; BOSTAN, Viorel; SOCHIREAN, Anatolie (Springer Science+Business Media B. V., 2013)
    Wind energy has been used by mankind over thousands of years. For over 3,000 years the windmills have been used for pumping water or grinding (milling). And nowadays, in the century of information technologies, nuclear ...
  • Wind or Hydro Homo-Heteropolar Synchronous Generators: Equivalent Magnetic Circuit and FEM Analysis 
    DEACONU, Sorin Ioan; TOPOR, Marcel; TUTELEA, Lucian Nicolae; NUCĂ, Ilie; BURDUNIUC, Marcel (EDP Sciences, 2018)
    In an effort to introduce a low cost (PM less), low power electric wind or hydro generators, this paper reports on preliminary design aspects, equivalent magnetic circuit and 3D FEM analysis of a 2.5 KVA, 250-1000 rpm, ...
  • Wine waste as a source of non-conventional resources in the food industry 
    BOESTEAN, Olga; NETREBA, Natalia; GUREV, Angela; DRAGANCEA, Veronica (Galati University Press, 2021)
    The research is focused on the capitalization of phytonutrients from grape seeds in the form of natural food additives. The physico-chemical indicators of seeds were determined and the properties of the powder were studied ...
  • WO3/WS2 composite materials for gas sensor and energy storage applications 
    URSAKI, V.; GHIMPU, L.; MESTERCA, R.; BRANCOVEANU, O.; PRODANA, M.; ENACHESCU, M.; DIMITRACHI, S.; TIGINYANU, I. (Institutul de Fizică Aplicată, 2018)
    Transition metal binary compounds, especially oxides and chalcogenides, are material of choice for many applications. Particularly, tungsten trioxide (WO3) has been extensively studied due to its outstanding electrochromic ...
  • Work function and AC operating gas-sensitive films based on quaternary chalcogenides 
    TSIULYANU, D.; CIOBANU, M.; LIESS, H.-D. (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2016)
    A study of quaternary alloys of As–S–Ge–Te was performed in order to assess their use in future gas sensors operating at room temperature. To elucidate the effect of tellurium, the quaternary compositions As2Te13Ge8S3 and ...
  • The worldwide methodologies for assessing living standards 
    GOROBIEVSCHI, Svetlana; NĂDRAG, Lavinia (Addleton Academic Publishers, 2011)
    In this article the authors show how they determined the stages of development of the methodological concepts used for assessing the quality of life (QL) from a worldwide perspective. Using a wide range of theoretical and ...
  • X-ray diffraction study on pressure-induced phase transformations and the equation of state of ZnGa2Te4 
    ERRANDONEA, D.; KUMAR, R. S.; GOMIS, O.; MANJÓN, F. J.; URSAKI, V. V.; TIGINYANU, I. M. (AIP Publishing LLC, 2013)
    We report on high-pressure x-ray diffraction measurements up to 19.8 GPa in zinc digallium telluride (ZnGa2Te4) at room temperature. An irreversible structural phase transition takes place at pressures above 12.1 GPa and ...
  • X-ray induced luminescence in ZnIn2S4 and Zn3In2S6 
    MACHUGA, A.; RADU, R.; PINTEA, V.; ARAMA, E.; ZHITAR, V.; SHEMYAKOVA, T. (Institutul de Fizică Aplicată, AŞM, 2006)
    Compounds belonging to the system ZnxIn2S3 + x are of special interest due to their peculiar properties. Intensive luminescence and high photosensitivity in visible and ultraviolet range determine their potential applicability ...
  • X-Ray Luminescence in ZnIn2S4, CdGa2S4 and Zn3In2S6 
    MACHUGA, A.; RADU, R.; PINTEA, V.; ARAMA, E.; ZHITAR, V.; SHEMYAKOVA, T. (IEEE, 2007)
    Results related to investigation of X-ray induced luminescence spectra in ZnIn 2 S 4 , CdGa 2 S 4 and Zn 3 In 2 S 6 single crystals measured at 300 and 80 K are presented. The spectra mainly consist of one band with maximum ...
  • The yeast on the grape berry surface influenced by climatic factors 
    YAO, Meiling; WANG, Fei; BREAHNA, Elizaveta; ARPENTIN, Gheorghe (EDP Sciences, 2021)
    Republic Moldova is a country with long history of winemaking. Understanding the microorganism on the grape surface is very important to the winemaking process, and it's also a national strategy of development of the wine ...
  • Yellow Luminescence and Optical Quenching of Photoconductivity in Ultrathin Suspended GaN Membranes Produced by Surface Charge Lithography 
    POPA, V.; BRANISTE, T.; STEVENS-KALCEFF, M. A.; GERTHSEN, D.; BRENNER, P.; POSTOLACHE, V.; URSAKI, V.; TIGINYANU, I. M. (American Scientific Publishers, 2013)
    Spatial and spectral distribution of cathodoluminescence as well as photoelectrical properties under excitation with two beams of monochromatic radiation of various wavelengths are investigated in ultrathin suspended GaN ...
  • Yet Another Method for Image Segmentation based on Histograms and Heuristics 
    TEODORESCU, Horia-Nicolai; RUSU, Mariana (Institutul de Matematică şi Informatică al AŞM, 2012)
    We introduce a method for image segmentation that requires little computations, yet providing comparable results to other methods. While the proposed method resembles to the known ones based on histograms, it is still ...
  • Zein polymorphism in the aid of maize seed certification 
    BATIRU, Grigorii; COMAROVA, Galina; COJOCARI, Dumitru; BOUNEGRU, Serghei; ADAMCIUC, Arcadi; ROTARI, Eugen (Moldova State University, 2023)
    A research project was initiated in 2020 with the aim of molecular passporting of domestic maize hybrids that are certified for export, but also for the local market. The basis of the creation of these passports is the ...
  • Zinc Oxide Nanostructures – Current Status 
    LUPAN, O.; SONTEA, V.; CRETU, V.; RAILEAN, S.; TROFIM, V. (Kyiv Polytechnic Institute, 2012)
    Development of ZnO nanostructures is of great importance for industrial applications. We analyze synthesis and properties control of zinc oxide, which are important in understanding the growth mechanism and further developing ...
  • Zinc oxide nanotetrapods with four different arm morphologies for versatile nanosensors 
    PAULOWICZ, Ingo; POSTICA, Vasile; LUPAN, Oleg; WOLFF, Niklas; SHREE, Sindu; COJOCARU, Ala; DENG, Mao; MISHRA, Yogendra Kumar; TIGINYANU, Ion; KIENLE, Lorenz; ADELUNG, Rainer (ELSEVIER, 2018)
    The structural morphology of metal oxide nano- and microstructures plays a crucial role in the performances of sensors and especially of nanosensors. Here, a simple approach on the synthesis of three-dimensional (3D) highly ...
  • Zn/sup +/, Zn/sup +//P/sup +/ and Zn/sup +//As/sup +/ implanted InP: study of electrical and symmetry properties 
    TIGINYANU, I. M.; KRAVETSKY, I. V.; URSAKI, V. V.; MAROWSKY, G.; HARTNAGEL, H. L. (IEEE, 1997)
    InP is known to be characterized by a low activation efficiency of p-type dopants. Some attempts have been previously undertaken to use the coimplantation of P/sup +/ ions in order to improve the activation efficiency of ...
  • Zn/sup +//P/sup +/ and Zn/sup +//As/sup +/ co-implantation in InP single crystals 
    URSAKI, V. V.; TIGINYANU, I. M.; ICHIZLI, V. M.; TERLETSKY, A. I.; PYSHNAYA, N. B.; RADAUTSAN, S. I. (IEEE, 1996)
    The activation efficiency of zinc impurity co-implanted with P/sup +/ and As/sup +/ ions in InP was studied by Hall-effect measurements. Both P/sup +/ and As/sup +/ co-implantations followed by post-implantation annealing ...
  • ZnAl2O4-Functionalized Zinc Oxide Microstructures for Highly Selective Hydrogen Gas Sensing Applications 
    HOPPE, Mathias; LUPAN, Oleg; POSTICA, Vasile; WOLFF, Niklas; DUPPEL, Viola; KIENLE, Lorenz; TIGINYANU, Ion; ADELUNG, Rainer (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2018)
    In this work, a simple method of ZnAl2O4-functionalization of ZnO microstructures is presented. The different characterization methods (structural, chemical, and micro-Raman) demonstrated the presence of only ZnO and ZnAl2O4 ...

Search DSpace


Browse

My Account