Browsing Articole ştiinţifice by Title

Sort by: Order: Results:

  • Ultra-thin semiconductor membrane nanotechnology based on surface charge lithography 
    TIGINYANU, Ion; POPA, Veaceslav; STEVENS-KALCEFF, Marion A. (Society of Photo-Optical Instrumentation Engineers, SPIE, 2011)
    We show that by subjecting GaN epilayers on sapphire substrates to low-energy/low-dose ion treatment with subsequent photoelectrochemical etching it is possible to fabricate ultra-thin GaN membranes in the form of nano-roof ...
  • Ultra-thin TiO2 films by atomic layer deposition and surface functionalization with au nanodots for sensing applications 
    LUPAN, Oleg; POSTICA, Vasile; ABABII, Nicolai; REIMER, Tim; SHREE, Sindu; HOPPE, Mathias; POLONSKYI, Oleksandr; SONTEA, Victor; CHEMNITZ, Steffen; FAUPEL, Franz; ADELUNG, Rainer (ELSEVIER, 2018)
    The presented study demonstrates the importance of the film thickness and surface functionalization with noble metals nanoclusters for sensing applications of ultra-thin TiO2 layers. Such ultra-thin films could be used for ...
  • Ultrafast third-order optical nonlinearity in SnS2 layered compound for photonic applications 
    PETRIS, Adrian; GHEORGHE, Petronela S.; VLAD, Valentin I.; RUSU, Emil; URSAKI, Veaceslav V.; TIGINYANU, Ion M. (ELSEVIER, 2018)
    The ultrafast nonlinear optical response of SnS2 layered compound, excited by high-repetition-rate ultrashort (fs) pulses at 1550 nm wavelength, is investigated for the first time by optical third harmonic generation. In ...
  • Ultrashort Electromagnetic Modes in the Low Frequency Region of the Spectrum in a Nanocylinder Array 
    SIRBU, L.; SERGENTU, V.; MULLER, R.; URSAKI, V.; TIGINYANU, I. M. (Springer Nature Switzerland, 2014)
    In this work we present the theoretical model of existence of ultrashort modes in low frequency region of the electromagnetic spectrum in a system of nanocilinders array. These modes have no analogue in a spectrum with ...
  • Ultrasound- and Microwave-Assisted Extraction of Pectin from Apple Pomace and Its Effect on the Quality of Fruit Bars 
    GUREV, Angela; CESKO, Tatiana; DRAGANCEA, Veronica; GHENDOV-MOSANU, Aliona; PINTEA, Adela; STURZA, Rodica (MDPI (Basel, Switzerland), 2023)
    The article investigates the process of pectin extraction using ultrasonic and microwave techniques from apple pomace generated during juice production in the context of circular bioeconomy. The extraction yield, equivalent ...
  • An ultrasound-assisted sol-gel method for the synthesis of nano titanium dioxide 
    ABRAMOVA, Anna; ABRAMOV, Vladimir; GUTSUL, Tatiana; MÎRZAC, Alexandra; SIDORENCO, Anatoly (Institutul de Inginerie Electronică şi Nanotehnologii "D. Ghiţu" al AŞM, 2016)
    An ultrasound-assisted sol-gel method is used to prepare titanium dioxide (TiO2)An ultrasound-assisted sol nanoparticles. The resulting nanoparticles are characterized by scanning electron microscopy (SEM) and FTIR ...
  • Ultraviolet photoconductive sensor based on single ZnO nanowire 
    LUPAN, O.; CHAI, G.; CHOW, L.; EMELCHENKO, G. A.; HEINRICH, H.; URSAKI, V. V.; GRUZINTSEV, A. N.; TIGINYANU, I. M.; REDKIN, A. N. (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2010)
    ZnO nanowires were synthesized by the CVD procedure and have been investigated by SEM, TEM, SAED, Raman, and cw PL spectroscopy. The fabrication of an ultraviolet (UV) photoconductive detector based on single ZnO nanowire ...
  • Un filosof al vieţii cotidiene 
    BRAGA, Mihail (Institutul de Studii Enciclopedice al AŞM, 2014)
    Chiar dacă, modest din fire cum a fost întotdeauna, Tudor Virțanu menționează că nu pretinde lauri poetici, nu ne impune un stil poetic anume, chiar dacă piesele incluse intre copertele volumelor ni se prezintă doar ca ...
  • Un indice quasi invariant de apreciere a disproporţionalităţii în sisteme RP 
    BOLUN, Ion; CEBOTARI, Sergiu (Academia de Studii Economice din Moldova, 2012)
    Pentru sistemele de votare cu reprezentare proporţională, este definită noţiunea de indice invariant. În scopul folosirii în cercetări comparative a unor asemenea sisteme, suplimentar la indicii Rae şi Grofman, care sunt ...
  • Un nume notoriu în lumea fizicii - Anatolie Casian la 70 de toamne împlinite 
    DULGHERU, Valeriu (Institutul de Inginerie Electronică şi Nanotehnologii „Dumitru Ghiţu”, 2005)
    Savant recunoscut în domeniul fizicii, profesor universitar, academician al Academiei Internaţionale de Termoelectricitate, membru-corespondent al Academiei Româno-Americane de Arte şi Ştiinţe, Laureat al Premiului Naţional ...
  • Un semicentenar de creativitate (1965-2015). Arhitecți formați la Universitatea Tehnică a Moldovei 
    CARPOV, Aurelia (Institutul de Istorie, Stat şi Drept al AŞM, 2015)
    În Moldova arhitecții sunt formați la Universitatea Tehnică a Moldovei din 1965. Deși Catedra de arhitectură a UTM a fost creată în anul 1964, odată cu întemeierea Institutului Politehnic „Serghei Lazo” din orașul Chișinău ...
  • Un studiu interdisciplinar despre amenajările militare 
    COCIN, Alexandru (Academia de Științe a Moldovei, 2016)
    Lucrarea membrului corespondent al Academiei de Ştiinţe a Moldovei, Mariana Şlapac, Cetăţile bastionare din Moldova (sfârşitul secolului al XVII-lea – începutul secolului al XIX-lea), sintetizează rezultatele cercetărilor, ...
  • Uncertainty Analysis of Attacker - Defender Interactions in MANET Based on Game GSPN with Intuitionistic Fuzzy Parameters 
    GUȚULEAC, Emilian; GÎRLEANU, Ion; IAVORSCHI, Inga; FURTUNA, Andrei (Universitatea Liberă Internaţională din Moldova, 2017)
    This paper presents a comprehensive approach to model an expected attacker- defender interaction in a mobile Ad-hoc wireless network (MANET), which combines utilization of theoretical games methods, intuitionistic fuzzy ...
  • Uncertainty modelling of dynamically reconfigurable systems based on rewriting stochastic reward nets with z-fuzzy parameters 
    MORARU, Victor; GUŢULEAC, Emilian; ZAPOROJAN, Sergiu (Institute of Mathematics and Computer Science of the Academy of Sciences of Moldova, 2021)
    This paper presents the descriptive compositional approach for uncertainty modelling and performance evaluation of dynamic reconfigurable discrete event systems (ReDES) using rewriting stochastic reward nets (ReSRN) with ...
  • Understanding circular economy and sustainable development awareness 
    DIACONU, Cristina; BUGAIAN, Larisa (Харківський національний технічний університет сільського господарства імені Петра Василенка, 2021)
    The basic objective of this scientific approach is focused on shaping the theoretical and conceptual framework on the circular economy and highlighting the importance of awareness of each of us of the need to implement ...
  • Understanding Distributed Program Behavior Using a Multicast Communication Scheme 
    MOCANU, Mihai; GUŢULEAC, Emilian (Springer Nature Switzerland, 2008)
    Events in a distributed global computation framework, unlike those in a sequential local computation, form a partially ordered set with respect to the causality relation revealed by timestamps. This paper describes a new ...
  • Understanding the barrier properties of dry, clay-based coatings. A contribution from computational modelling 
    SIMINEL, Nikita; BREEN, Chris; CLEAVER, Doug; CLEGG, Francis (The James Hutton Institute, 2015)
    Coatings with high barriers to gases, vapours and flavours find their major application in food packaging materials. Taking into account the amount of food currently wasted every year, packaging that keeps it fresh for a ...
  • Unele aplicaţii ale forţelor de inerţie 
    COLPAJIU, Mircea; TIRON, Stefan (Institutul de Inginerie Electronică şi Nanotehnologii „Dumitru Ghiţu”, 2005)
    Vom considera un corp de masă m, lansat vertical în sus şi vom nota cu vr viteza acestuia în raport cu sistemul de referinţă solidar cu Pământul. Evident, în punctul superior al traiectoriei vr = 0. Vom cerceta acest caz ...
  • Unele aplicaţii moderne ale laserelor 
    DICUSARĂ, Ion (Institutul de Inginerie Electronică şi Nanotehnologii "D. Ghiţu" al AŞM, 2004)
    Prin exemple concrete este ilustrată influenţa benefică pe care a exercitat-o inventarea laserului asupra dezvoltării ştiinţei, tehnicii şi a diverselor ramuri ale economiei. Utilizarea laserului în prelucrarea materialelor ...
  • Unele aspecte a expertizei tehnico-economice a bunurilor imobile proprietate comună 
    PALADI, Alexandru (Universitatea Agrară de Stat din Moldova, 2018)
    This article relates to the technical and economic expertise of the real estate. The investigation touches on the way in which the real estate expertise contributes in order to determine the quota regime or to recalculate ...

Search DSpace


Browse

My Account