Browsing Articole ştiinţifice by Title

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  • NEUMANN, H.; HÖRIG, W.; NOOKE, G.; SYRBU, N. N. (Elservier, 1988)
    Optical absorption spectra of PbGa2S4 are measured in the photon energy range from 2.0 to 3.2 eV and for temperatures between 32 and 300 K. PbGa2S4 is found to be an indirect-gap semiconductor with a gap energy of 2.84 eV ...
  • LOZOVANU, Ecaterina (Universitatea de Stat de Medicină şi Farmacie „Nicolae Testemiţanu“, 2013)
    The philosophical reflection of culture’s foundation is a prerequisite for the development of science. It is presented as a specific aspect of philosophical understanding of reality, in which new categorical structures ...
  • BOSTAN, Ina (Universitatea Academiei de Ştiinţe a Moldovei, 2017)
    Individul întotdeauna își duce existența în cadrul vieții sociale, iar viața socială cuprinde toate fenomenele care apar între oameni, în oricare moment al existenței lor. De aceea, activității umane îi sunt caracteristice ...
  • COJUHARI, E. P.; GARDNER, B. J. (Australian Mathematical Publishing Association Inc., 2021)
    Ryabukhin showed that there is a correspondence between elementary radical classes of rings and certain filters of ideals of the free ring on one generator, analogous to the Gabriel correspondence between torsion classes ...
  • COJOCARU, Victor; MARDARI, Vladimir (The Publishing House of the Romanian Academy, 2014)
    We propose a device for therapeutic hypothermia implemented with Peltier elements controlled by a microcontroller, operated from a guided user interface. The control is based on fuzzy logic and aims at keeping a low ...
  • COJOCARU, Victor; VRABII, Daniel (IEEE, 2015)
    We analyze a device designed to perform therapeutic hypothermia in the skull. This device is proposed for use in hospitals profile especially for rapid intervention crews. The cooling device uses Peltier elements that allow ...
  • CHILAT, Sergiu (Institute of Mathematics and Computer Science, ASM, 2014)
    This article presents a method for automation of the process of data analysis generated from Google Analytics, using fuzzy logic. After the method implementation, the user will get the most useful and suitable content ...
  • RUSU, Mariana; ZBANCIOC, Marius-Dan (Institutul de Matematică şi Informatică al AŞM, 2017)
    The sorting method contains a fuzzy system that classifies waste into three classes: dangerous (toxic, flammable, harmful to the environment), recyclable and undetermined. To increase the decision weight since some waste ...
  • ABABII, Victor; SUDACEVSCHI, Viorica; ALEXEI, Victoria; MELNIC, Radu; BORDIAN, Dimitrie; NISTIRIUC, Ana (IEEE, 2019)
    This paper presents the results of the research carried out in the development of Fuzzy sensor networks for navigation mobile robots in closed environments. Wi-Fi technology is used for locating and moving robots which ...
  • MONAICO, Ed.; MORARI, V.; URSAKI, V. V.; MONAICO, E. I.; TIGINYANU, I. M.; NIELSCH, K. (Institutul de Fizică Aplicată, AŞM, 2018)
    Technological conditions for obtaining InP nanomembranes and nanowires by means of fast anodic etching of bulk substrates have been recently elaborated. Electrochemical etching is an easy, cost-effective, and very fast ...
  • NIKOLAEVA, A.; BODIUL, P.; KONOPKO, L.; PARA, G. (IEEE, 2002)
    In the work thin single crystal (0.3 < d < 5 /spl mu/m) wires Bi/sub 1-x/Sb/sub x/ obtained by the liquid phase casting in a glass coating were investigated under elastic deformations up to 2-3% relative elongation in the ...
  • DRAGOMAN, Mircea; CIOBANU, Vladimir; DRAGOMAN, Daniela; DINESCU, Adrian; BRANISTE, Tudor; TIGINYANU, Ion (Institute of Nanocience and Nanotechnology, INN, 2017)
    We have recently shown that GaN ultrathin membranes suspended on GaN nanowires having a thickness of 15 nm and planar dimensions of 12×184 microns are acting as memristive devices. The physical effect which explains this ...
  • TIGINYANU, Ion; URSAKI, Veaceslav (TUBITAK, 2014)
    We present a review of technological methods developed in recent years for the purpose of gallium nitride nanostructuring, with the main focus on fabrication of thin GaN membranes. In particular, we report on traditional ...
  • SIDORENKO, A.; PEISERT, H.; NEUMANN, H.; CHASSÉ, T. (ELSEVIER, 2006)
    The growth of epitaxial GaN films on (0001)-sapphire has been investigated using X-ray photoelectron spectroscopy (XPS) and low energy electron diffraction (LEED). In order to investigate the mechanism of the growth in ...
  • SIDORENKO, A.; PEISERT, H.; NEUMANN, H.; CHASSE, T. (Elsevier, 2007)
    We present X-ray Photoemission (XPS) and low energy electron diffraction (LEED) investigations of initial stages of GaN film growth on sapphire(0001) and SiC(0001)-√3×√3:Ga. The growth of ultrathin films is performed by ...
  • COJOCARI, O.; POPA, V.; URSAKI, V. V.; TIGINYANU, I. M.; HARTNAGEL, H. L.; DAUMILLER, I. (IOP Publishing, 2004)
    This paper presents the results of a Pt/n-GaN Schottky contact technology development based on electrochemical metal deposition. Three different technological approaches are used to fabricate GaN varactor diodes. The effects ...
  • TIGINYANU, Ion (Academica Greifswald, 2017)
    GaN and ZnO are wide band gap semiconductor compounds with unique properties favourable for the development of short-wavelength light emitting devices and high-power electronics. From the point of view of applications, ...
  • POPA, V.; TIGINYANU, I. M.; URSAKI, V. V.; VOLCIUS, O.; MORKOÇ, H. (IOP Publishing, 2006)
    We demonstrate that photoelectrochemical (PEC) etching of GaN layers in KOH or H3PO4 solutions leads to the formation of specific surface morphologies which cause the material to exhibit different sensitivities to certain ...
  • ALBU, Sergiu; MONAICO, Eduard; TIGINYANU, I. M.; URSAKI, V. V. (Institutul de Fizică Aplicată, AŞM, 2006)
    The interest in nanometer-scale materials and devices stimulated the development of alternative technologies in recent years. Metal nanowires are one of the most attractive materials because of their unique properties ...
  • TSIULYANU, D.; MARIAN, S.; MOCREAC, O. (Institutul de Fizică Aplicată al AŞM, 2012)
    In this paper, the change of work function ( Δφ ) of the tellurium thin films was studied in response to different concentrations of nitrogen dioxide, carbon oxide, ozone and water vapor using a KP with a gold grid reference ...

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