Browsing Articole by Title

Sort by: Order: Results:

  • HÖLKEN, Iris; NEUBÜSER, Gero; POSTICA, Vasile; BUMKE, Lars; LUPAN, Oleg; BAUM, Martina; MISHRA, Yogendra Kumar; KIENLE, Lorenz; ADELUNG, Rainer (The Royal Society of Chemistry, 2016)
    Novel three-dimensional (3D) hollow aero-silicon nano- and microstructures, namely, Si-tetrapods (Si-T) and Si-spheres (Si-S) were synthesized by a sacrificial template approach for the first time. The new Si-T and Si-S ...
  • BOSTAN, Ion; DULGHERU, Valeriu; BODNARIUC, Ion ("Dunărea de Jos" University, Galaţi, 2012)
    The planetary precessional transmissions represent a new principle type of the mechanical transmissions. The specificity of the relative sphere-spatial movement of the precessional gearing elements makes the sliding friction ...
  • ŽIVKOVIC, Lj.; LAIR, V.; LUPAN, O.; CASSIR, M.; RINGUEDE, A. (Polish Academy of Science, 2019)
    Electrical, optical or catalytic properties of ceria can be tuned via doping by rare earth elements. The innate properties of ceria-based materials can be further amplified by using nanostructured ceria. In this study, ...
  • FOGEL, N. Ya.; SIDORENKO, A. S. (Elservier, 1978)
    Resistive transitions to the superconducting state have been investigated for variations of both temperature and external magnetic field. Experimental data were obtained for thin films of vanadium and indium. The excess ...
  • SIDORENKO, A. S.; PANAITOV, G. I.; GABOVICH, A. M.; MOISEEV, D. P.; POSTNIKOV, V. (Springer Nature Switzerland, 1991)
    In the present work we have measured the magnetization relaxation at T = 4-2 K in two substantially different superconductors: BaPbo.~sBio.250 3 (BPB, T~ 10K, Hcx ~ 12 Oe) and YBa2Cu307_ x (YBCO, T~ ~ 92 K). The SQUID ...
  • SERGENTU, Vladimir; URSAKI, Veacheslav (Romanian Academy Publishing House, 2018)
    In this paper the Fresnel’s formula are generalized to the case of a twodimensional (2D) self-healing beam incident on the interface of the vacuum with a nonmagnetic, homogeneous on average and isotropic nanostructured ...
  • CHIORSAC, M. V.; TURCUMAN, L. V.; SIDELNICOV, V. C. (Institutul de Energetică al Academiei de Științe a Moldovei, 2012)
    În lucrare sunt prezentate condiţiile respective de frontieră în locul defectării LEA hexafazate în coordonatele de fază şi coordonatele componentelor simetrice hexafazate. Sunt elaborate schemele echivalente complexe de ...
  • RUSU, E.; BUDIANU, E.; NAN, S.; PURICA, M. (IEEE, 1996)
    The Schottky barriers of Ag, Ti, Ni, on n and p iso-type heterostructures of In/sub 0.53/Ga/sub 0.47/As/InP, grown by the CL-VPE technique, have shown that values of 0.6 eV for Ag/p-InGaAs barrier height and of 0.46 eV on ...
  • POSTICA, Vasile; SCHÜTT, Fabian; ADELUNG, Rainer; LUPAN, Oleg (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2017)
    In this work, a general strategy to change the selectivity of individual ZnO tetrapod (ZnO-T)-Schottky diode-based devices by hybridization with carbon nanotubes (CNT) is presented. A microscale Schottky diode based on ...
  • SEMENOV, A.; HÜBERS, H.-W.; POHL, A.; COJOCARI, O.; SOBORNYTSKYY, M.; HOEHL, A.; MÜLLER, R.; RIES, M.; WÜSTEFELD, G. (JACoW Publishing, Geneva, Switzerland, 2014)
    Coherent synchrotron radiation (CSR) in the terahertz frequency range is a powerful tool for the diagnostics of the electron-beam relying on the fact that the emission spectrum of THz CSR depends on the shape of the electron ...
  • FURDUI, Teodor; DUCA, Gheorghe; TIGHINEANU, Ion (Academia de Ştiinţe a Moldovei, 2009)
    În istoria evoluţiei ştiinţei, culturii şi economiei se înscriu doar personalităţile cu capacităţi intelectuale deosebite, care consideră o datorie de onoare de a oferi lumii ceea ce s-a investit în ei şi aduc o contribuţie ...
  • BOSTAN, Ion; GHEORGHE, Adrian; DULGHERU, Valeriu; SOBOR, Ion; BOSTAN, Viorel; SOCHIREAN, Anatolie (Springer Nature Switzerland, 2013)
    The largest energy reserves are stored in the oceans – a large area of water currents continuously moving and covering about 71% of the planet’s surface. The Planet Ocean has a huge energy potential that can be employed ...
  • IAVORSCHI, Inga (Universitatea de Stat „Dimitrie Cantemir”, 2018)
    Securitatea informațională reprezintă un domeniu cu mai multe intrebări decît răspunsuri. Am avansat considerabil în ultimii 30 de ani datorită progresului înregistrat în domeniul tehnologiilor informaționale. Suntem într-un ...
  • SLĂTINEANU, Laurenţiu; DODUN, Oana; COTEAŢĂ, Margareta; DULGHERU, Valeriu; DUŞA, Petru; BANCIU, Felicia; BEŞLIU, Irina (MATEC Web of Conferences, 2017)
    Over the years, the importance of the creativity inclusively in the field of design activities was highlighted. In accordance with the opinions of certain researchers, the divergent thinking could contribute to the increase ...
  • LUPAN, O.; URSAKI, V. V.; CHAI, G.; CHOW, L.; EMELCHENKO, G. A.; TIGINYANU, I. M.; GRUZINTSEV, A. N.; REDKIN, A. N. (ELSEVIER, 2010)
    In this work, we report on a single ZnO nanowire-based nanoscale sensor fabricated using focused ion beam (FIB/SEM) instrument. We studied the diameter dependence of the gas response and selectivity of ZnO nanowires (NWs) ...
  • LUPAN, O.; CHAI, G.; CHOW, L.; TROFIM, V. (NSTI, 2009)
    This article presents a sensitive and selective sensor based on an individual zinc oxide nanotetrapod and on crossed ZnO nanorod for detection of UV light and hydrogen at low temperature. It is demonstrated that ZnO tetrapod ...
  • TIGINYANU, I.; MONAICO, E.; NIELSCH, K. (The Electrochemical Society, 2015)
    We demonstrate the possibility to cover the surface of GaP and InP porous structures by a self-assembled monolayer of electrochemically deposited nanoscale Au nanodots. After nucleation, each dot was found to increase in ...
  • CHOW, L.; LUPAN, O.; HEINRICH, H.; CHAI, G. (American Institute of Physics, 2009)
    We present a method of self-assembly of densely packed and aligned bilayer ZnO nanorod arrays in a hydrothermal synthesis process. The alkali hydrothermal environment first induced the growth of hydrotalcitelike zincowoodwardite ...
  • LUPAN, Oleg; SONTEA, Victor; CHOW, Lee; CHERNYAK, Leonid; RAILEAN, Serghei (University of Craiova, 2008)
    We demonstrate a synthetic approach to selfassembly ZnO nanostructures on flat, spherical and curved surfaces. Self-assembly of ZnO nanorods was performed in aqueous solution. The effects of electric field, biopolymer ...
  • COJOCARU, Ala; CARSTENSEN, Jürgen; LEISNER, Malte; FÖLL, Helmut; TIGINYANU, Ion (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2009)
    Electrochemical etching of n-type silicon in viscous-electrolyte containing HF for macropore formation has been employed to obtain deep pores at high growth rates. Under certain conditions, a new kind of macropore growth ...

Search DSpace


Browse

My Account