Browsing Articole ştiinţifice by Title

Sort by: Order: Results:

  • Wavelength modulated optical reflectivity spectra of CuAl1 -XGaXSe2crystals 
    SYRBU, N. N.; DOROGAN, A. V.; URSAKI, V. V.; MASNIK, A. (IOP Publishing, 2010)
    Exciton spectra of CuAl1 − XGaXSe2 solid solutions are investigated by wavelength modulated optical reflectivity at low temperatures (10 K). The energy position of n = 1 and 2 lines of the Γ4(A), Γ5(B) and Γ5(C) exciton ...
  • Wavelength modulated optical reflectivity spectra of CuAl1−XGaXSe2 crystals 
    SYRBU, N. N.; DOROGAN, A. V.; URSAKI, V. V.; MASNIK, A. (IOP Publishing, 2010)
    Exciton spectra of CuAl1 − XGaXSe2 solid solutions are investigated by wavelength modulated optical reflectivity at low temperatures (10 K). The energy position of n = 1 and 2 lines of the Γ4(A), Γ5(B) and Γ5(C) exciton ...
  • Wavelength-Emission Tuning of ZnO Nanowire-Based Light-Emitting Diodes by Cu Doping: Experimental and Computational Insights 
    LUPAN, Oleg; PAUPORTÉ, Thierry; LE BAHERS, Tangui; VIANA, Bruno; CIOFINI, Ilaria (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2011)
    The band-gap engineering of doped ZnO nanowires is of the utmost importance for tunable light-emitting-diode (LED) applications. A combined experimental and density-functional theory (DFT) study of ZnO doping by copper ...
  • The Way to Uniformity in Porous III–V Compounds via Self-Organization and Lithography Patterning 
    LANGA, S.; CARSTENSEN, J.; CHRISTOPHERSEN, M.; FÖLL, H.; TIGINYANU, I. M. (Springer Nature Switzerland, 2005)
    The factors determining the morphology of electrochemically etched III–V compounds have been reviewed by Gomes and Goossens as well as by Notten et al. [1,2]. Under anodic conditions the p- and n-type materials were found ...
  • Weak reflexive subcategory 
    BUTNARU, Dumitru; ŢURCANU, Alina (Universitatea de Stat din Moldova, 2021)
    In the subcategory of topological vector locally convex spaces Hausdorff are built proper classes of weakly reflective and weakly coreflective subcategories, respectively. We proved that the right product of two subcategories ...
  • Web application performance analysis 
    CERBU, Anatolie; PERLOG, Valentin (Universitatea de Stat din Moldova, 2021)
    Speed counts on mobile devices, but the perception of speed is just as important. A web application, like any other product, has features that directly or indirectly influence the business of owners. To meet market ...
  • WEB GIS solution for urban planning documentation workflow 
    NISTOR-LOPATENCO, Livia; IACOVLEV, Andrei (EDP Sciences, 2020)
    The goal of this work is to study the use of WEB GIS open source solution for workflow organizing of urban planning documentation: zoning permit, building permit, occupancy permit, utilities connection. A web GIS solution ...
  • Well-aligned arrays of vertically oriented ZnO nanowires electrodeposited on ITO-coated glass and their integration in dye sensitized solar cells 
    LUPAN, O.; GUÉRIN, V. M.; TIGINYANU, I. M.; URSAKI, V. V.; CHOW, L.; HEINRICH, H.; PAUPORTÉ, T. (ELSEVIER, 2010)
    We report on the effects of post-growth hydrothermal treatment and thermal annealing on properties of vertically aligned ZnO nanowires arrays (NWs). The samples were electrochemically deposited (ECD) on indium–tin oxide ...
  • Well-being și tehnologizarea forțată a studenților în lunile de carantină Covid 
    SIMION, Simion Dănuţ (Academia de Studii Economice din Moldova, 2021)
    The shock of quarantine in the months of CoVid short-circuited the entire society. Quarantine it has largely affected all those social structures that have lagged behind in the process of technological modernization. One ...
  • Wetting of grain boundaries in Al by the solid Al3Mg2 phase 
    STRAUMAL, B. B.; BARETZKY, B.; KOGTENKOVA, O. A.; STRAUMAL, A. B.; SIDORENKO, A. S. (Springer Nature Switzerland, 2010)
    The microstructure of binary Al100−x–Mgx(x = 10, 15, 18 and 25 wt%) alloys after long anneals (600–4000 h) was studied between 210 and 440 °C. The transition from incomplete to complete wetting of Al/Al grain boundaries ...
  • What Goes Around Comes Around: Learning Sentiments in Online Medical Forums 
    BOBICEV, Victoria; SOKOLOVA, Marina; OAKES, Michael (Springer Nature Switzerland, 2015)
    It has been shown that online health-related discussions significantly influence the attitudes and behavioral intentions of the discussion participants. Although empirical evidence strongly supports the importance of ...
  • What Sentiments Can Be Found in Medical Forums? 
    SOKOLOVA, Marina; BOBICEV, Victoria (RANLP, 2013)
    In this work we present sentiment analysis of messages posted on a medical forum. We categorize posts, written in English, into five categories: encouragement, gratitude, confusion, facts, and facts + sentiments. Our study ...
  • Whispering gallery modes and random lasing in ZnO microstructures 
    URSAKI, V. V.; BURLACU, A.; RUSU, E. V.; POSTOLAKE, V.; TIGINYANU, I. M. (IOP Publishing, 2009)
    Hexagonal ZnO microdiscs and hemispherical ZnO microstructure built from hierarchical nanostructures have been grown by metal–organic chemical vapour deposition and carbothermal evaporation technologies, respectively. The ...
  • 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 ...

Search DSpace


Browse

My Account