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Now showing items 2644-2663 of 3108

Synthesis and characterization of electrodeposited samaria and samaria-doped ceria thin films

LAIR, V.; ŽIVKOVIĆ, L. S.; LUPAN, O.; RINGUEDÉ, A. (ELSEVIER, 2011)

Samaria (Sm2O3) and samaria-doped ceria (SDC) films are electrochemically deposited on stainless steel in view of a potential use in solid oxide fuel cells. As it is possible to deposit separately pure ceria (CeO2) and ...
Synthesis and Characterization of Functional Nanostructured Metal Oxide Thin Films

CHOW, Lee; SHISHIYANU, S.; LUPAN, Oleg; SHISHIYANU, Teodor (ECS - The Electrochemical Society, 2006)

The nanomaterials are obtained to analyze the physical and structural requirements of their applications in gas sensors and solar cells. This claim is sustained by a model of the nucleation and growth processes through the ...
Synthesis and Characterization of Functional Nanostructured Zinc Oxide Thin Films

CHOW, Lee; SHISHIYANU, S.; LUPAN, Oleg; SHISHIYANU, Teodor (The Electrochemical Society, 2019)

A novel aqueous relatively low-temperature thin film growth technique has been developed to fabricate a new generation of smart and functional nanostructured metal oxide thin film materials. This chemical synthetic route ...
Synthesis and Characterization of Photosensible CH3NH3PbI3 and CH3NH3PbI3-xClx Perovskite Crystalline Films

PLEŞCO, I.; POSTOLACHE, V.; VOLODINA, G.; ZALAMAI, V.; GHIMPU, L.; TIGINYANU, I. (Institute of Applied Physics, Academy of Sciences of Moldova, Chisinau, Republic of Moldova, 2017)

Methylammonium lead-halide perovskites are very promising for applications as solar light-harvesting materials. This paper presents a study on the methylammonium iodide and iodide-chloride perovskite films prepared by spin ...
Synthesis and characterization of photosensible CH3NH3PbI3 and CH3NH3PbI3–x Cl x Perovskite Crystalline Films

PLESCO, I.; POSTOLACHE, V.; VOLODINA, G.; ZALAMAI, V.; GHIMPU, L.; TIGINYANU, I. (Springer Nature Switzerland, 2017)

Methylammonium lead-halide perovskites are very promising for applications as solar light-harvesting materials. This paper presents a study on the methylammonium iodide and iodide-chloride perovskite films prepared by spin ...
Synthesis and characterization of ZnO nanowires for nanosensor applications

LUPAN, O.; EMELCHENKO, G. A.; URSAKI, V. V.; CHAI, G.; REDKIN, A. N.; GRUZINTSEV, A. N.; TIGINYANU, I. M.; CHOW, L.; ONO, L. K.; ROLDAN CUENYA, B.; HEINRICH, H.; YAKIMOV, E. E. (ELSEVIER, 2010)

In this paper we report the synthesis of ZnO nanowires via chemical vapor deposition (CVD) at 650°C. It will be shown that these nanowires are suitable for sensing applications. ZnO nanowires were grown with diameters ...
Synthesis and Characterizations of ZnO Nanorods Arrays and Mesoporous Films for Device Applications

LUPAN, O.; CHOW, L. (NSTI, 2007)

We present a novel aqueous-solution synthesis technique to obtain uniform ZnO nanorod arrays with good crystalline and mesoporous films. This technique was preferred for reasons related to economical and ecological advantages, ...
Synthesis and gas sensor applications of nanostructured ZnO grown at low temperatures

LUPAN, Oleg; PAUPORTE, Thierry; CHOW, Lee (TUBIITAK, 2014)

ZnO nanoarchitecture-based nano- and microdevices came into the focus due to their multifunctional operation. In this work, we summarize cost-effective procedures to grow ZnO nano- and microstructures, namely hydrothermal ...
Synthesis and optical characterization of the organic luminophore nanocomposite PEPC/Eu(o-MBA)3Phen

BORDIAN, O.; VERLAN, V.; CULEAC, I.; IOVU, M.; ZUBAREVA, V. (Institutul de Fizică Aplicată al AŞM, 2014)

In the work was studied nanocomposite PEPC/Eu(o-MBA)3Phen, where PEPC – poly-N-epoxypropilcarbazol and o-MBA o– methylbenzoic acid, Phen – phenanthroline.
Synthesis and optical properties of Ga2O3 nanowires grown on GaS substrate

LEONTIE, Liviu; SPRINCEAN, Veaceslav; UNTILA, Dumitru; SPALATU, Nicolae; CARAMAN, Iuliana; COJOCARU, Ala; ŞUŞU, Oana; LUPAN, Oleg; EVTODIEV, Igor; VATAVU, Elmira; TIGINYANU, Ion; CARLESCU, Aurelian; CARAMAN, Mihail (ELSEVIER, 2019)

Gallium oxide (β-Ga2O3) nanowires were synthesized by heat treatment of single crystal β-GaS plates in air. Crystal structure and composition of synthesized materials were studied by X-ray diffraction, energy dispersive ...
Synthesis and properties of CuO:Fe nanocrystalline films

ABABII, N.; POSTICA, V.; TROFIM, V.; RAILEAN, S.; SONTEA, V.; LUPAN, O. (Institutul de Fizică Aplicată, 2016)

In this research, nanocrystalline films of Fe-doped CuO were synthesized from chemical solution (SCS) as described in our previous paper. Samples were thermally processed in electrical furnace (TA) and rapid thermal processed ...
Synthesis and properties of β-Ga2O3 nanowires and nanosheets on doped GaS:Mn substrates

SPRINCEAN, Veaceslav; QIU, Haoyi; LUPAN, Oleg; TJARDTS, Tim; PETERSEN, Deik; VEZIROGLU, Salih; ADELUNG, Rainer; CARAMAN, Mihail (Elsevier, 2024)

In this work, the synthesis, morphology, optical and luminescence properties of Mn-doped β-Ga2O3 (Ga2O3:Mn) nanowires/nanosheets on Mn-doped GaS (GaS:Mn) substrate are studied. The aim was to obtain structures of semiconductors ...
Synthesis of Carbide Phases in Surface Metal Layers Under Electrospark Alloying with Graphite and Transition Metals in Groups IV–VI

MIKHAILOV, V. V.; KAZAK, N. N.; AGAFII, V. I.; YANAKEVICH, A. I. (Springer Nature Switzerland, 2019)

The paper examines the electrospark synthesis of carbide phases in the surface layers of some steels (structural and tool) and titanium using graphite and transition metal electrodes: Ti, Cr, Mo, and W. Various options for ...
The Synthesis of Linear Regulators for Aperiodic Objects with Time Delay According to the Maximal Stability Degree Method

IZVOREANU, Bartolomeu; FIODOROV, Ion (Elsevier, 1997)

The synthesis algorithms of linear regulators for a large class of aperiodic objects’models with time delay is proposed in this paper according to the maximal stability degree method of the monovariable designed systems. ...
Synthesis of nanostructured Al-doped zinc oxide films on Si for solar cells applications

LUPAN, O.; SHISHIYANU, S.; URSAKI, V.; KHALLAF, H.; CHOW, L.; SHISHIYANU, T.; SONTEA, V.; MONAICO, E.; RAILEAN, S. (ELSEVIER, 2009)

Al-doped ZnO thin films have been prepared by a novel successive chemical solution deposition technique. The variation in morphological, structural, electrical, and optical properties of nanostructured films with doping ...
Synthesis of one-dimensional SnO2 nanorods via a hydrothermal technique

LUPAN, O.; CHOW, L.; CHAI, G.; HEINRICH, H.; PARK, S.; SCHULTE, A. (ELSEVIER, 2009)

We have developed a simple solution process to synthesize tin oxide nanorods. The influence of precursors and the reaction temperature on the morphology of SnO2 is investigated. SnO2 nanorods are characterized by X-ray ...
Synthesis of optimal dimensional structure of the technological processes of machining

TOCA, A.; STRONCEA, A.; STINGACI, I.; RUSICA, I. (IOP Publishing, 2018)

In this paper we consider the question of the creation of optimal processes using a many criteria of optimality. In the synthesis of machining technologies must take into account a great many factors (economic, temporal, ...
Synthesis of PID Controller for the Automatic Control System with Imposed Performance based on the Multi-Objective Genetic Algorithm

COJUHARI, Irina; FIODOROV, Ion; IZVOREANU, Bartolomeu; MORARU, Dumitru (IEEE, 2020)

This paper presents an improved algorithm for tuning of the proportional-integral-derivative controller, according to the maximum stability degree criterion with implementation the optimization procedure, based on the ...
Synthesis of Robust PID Controller by the Maximum Stability Degree Criterion

FIODOROV, Ion; IZVOREANU, Bartolomeu; COJUHARI, Irina (IEEE, 2015)

The new approach for determining and imposing the maximum stability degree of the system in function of the control object parameters and the number of tuning parameters of PID controller is proposed in this work. The ...
Synthesis of the PID Algorithm for Control the Thermal Regime in the 3D Printer

COJUHARI, Irina; IZVOREANU, Bartolomeu; FIODOROV, Ion; MORARU, Dumitru; BOTNARU, Sorin (University of Craiova, 2017)

In this paper it is described the automatic system for formation the small pieces from polymer, based on the principle of thermoplastic extrusion and it is proposed the graph – analytical algorithm for identification the ...

Now showing items 2644-2663 of 3108

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