Materials Literature
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The (VO) 0.09 V 0.18 Mo 0.82 O 3 · 0.54H 2 O microrods of hexagonal symmetry system with the unit cell parameters a = 10.586 Å and c = 3.698 Å were obtained for the first time under hydrothermal conditions ( T = 160°C, τ = 30−50 h). Particles were 1–2 μm in diameter and up to 45 μm in length. The compound is thermally…
Abstract not provided.
Abstract not provided.
Anodes of proton exchange membrane fuel cell with the platinum-hydrogen tungsten bronze(HxWO3) as the composite catalysts were prepared by electrochemical reduction on carbon cloth. The catalysts were characterized by XRD, SEM, EIS and single-cell polarization tests. The results showed that the order of electrochemica…
Red phosphors Sr(1-1.5x)Mo0.8Si0.2O3.8∶Eu3+x(x=0.1, 0.2, 0.3, 0.4, 0.5) used for LED were synthesized by high temperature solid state method. XRD, fluorescence excitation and emission spectra were used for analysis the phase composition and luminescent properties of the materials. The XRD result of sample x=0.1 is con…
Sažetak: U radu opisano je generiranje sinusnog valnog oblika filtriranjem pravokutnog valnog oblika primjenom RC filtra.Korišten je razvoj pravokutnog valnog oblika u Fourierov red te filtriranje viših harmonika kako bi se zadržao samo osnovni harmonik.Filtriranje je provedeno simulacijski i eksperimentalno.Prikazana…
\n\tThe InAs/GaSb superlattice were prepared by metal organic chemical vapor deposition (MOCVD) on GaSb substrate. The optimized thickness and the various growth parameters were explored as well as the importance of source flux control. The photoluminescence (PL) spectra, x-ray diffraction data (XRD) and the surface t…
Ce(1-x)(Fe(0.5)La(0.5))xO(2-delta) solid solutions were obtained via hydrothermal method. The structure of the solid solutions and the cell parameters were characterized by XRD analysis technique, the electron transition properties and doping effectswere measured by UV-Vis diffraction spectrum and Raman spectrum techn…
OBJECTIVE: To compare the fracture surface of the machinable infiltrated ceramic (MIC) prepared in different conditions, and to relate its strength and toughness to the differences in their microstructures. METHODS: The Al2O3 matrix were prepared, infiltrated by the machinable glass and crystallized. Based on sinterin…
The crystal structures of n-nonylammonium dihydrogen phosphate and n-octylammonium dihydrogen phosphate were determined by x-ray crystallography. lattice potential energies of the compounds were obtained from the crystallographic data. the molar enthalpies of dissolution of the two compounds at various molalities in t…
This PhD thesis reports on the synthesis and characterization of silicon-based nanoparticles. Adequate samples for single particle measurements using laser-induced pyrolysis in combination with the facilities of a molecular beam machine were prepared in order to clarify the origin of the photoluminescence (PL), namely…
Plagiarism in music industry becomes a social issue through all the years, especially when popular rock band CN BLUE(the song Loner) had a copyright issue with independent band Y Not(the song Blue Bird) in early 2010, the latter eventually took the case to the court . The court held in favor of CN BLUE on April, 2011,…
Carbon steel samples were buried in loamy soil modified with lime, fly-ash and Portland cement in ratio of 5 and 10% during 60 days. Corrosion attack was assessed by electrochemical impedance spectroscopy. Loamy soil without modification was taken as reference. The corrosion products in rust were characterized by Rama…
The photoluminescence property of CdS/PAMAM nanocomposites in water at different ratio of Cd2+ to PAMAM(r) was studied by fluorescence emission spectrum, and the according mechanism was explored. The results indicate that in the irradiation of UV light at the wavelength of 330 nm, two peaks were shown in the fluoresce…
In an accompanying paper being presented in NDESAI, the utility of Multifrequency electromagnetic sensors has been shown to be able to detect steel microstructure changes, for example the austenite to ferrite transformation and the presence of decarburisation in high carbon steel rods. In the present study, steels wit…
A supermolecular compound [Zn(H2O)6].(C16H8O8) was synthesized with 3,3', 4,4'-bipthenyltetracarboxylic acid (H4BPTC) and Zn(CH3COO)2.2H2O. Its structure was determined by single crystal X-ray diffraction, IR and element analysis. The crystal belongs to triclinic system with space group and the cell parameters are: a…
Government has noticed the Commodity Exchange Act(bill) aiming formation and transparency of commodities market on September 30, 2011. The purpose of Commodity Exchange Act(bill) makes the production and distribution of commodities active with enhanced the price formation and fairness of the commodities market, and co…
Thymine, being one of the four nucleobases in the nucleic acid of DNA, has received an increasing interest due to its potential importance in genetics and possible applications in medical science. In the present study, adsorption of thymine on laser-ablated silver island films was comparatively analyzed by means of su…
In this paper, we report the synthesis of crystalline beta-FeSi2 via the reaction of Si and Fe powders under high-temperature and high-pressure. X-ray diffraction and Raman scattering results confirm formation of the beta-FeSi2 phase. Scanning electron microscopy, high-resolution transmission electron microscopy, and…
Yeni metalli ftalosiyaninler 4-(2-dimetilaminoetilsulfanil)ftalonitril ve dietil 3,4 disiyanofenilmalonat'dan sentezlendi. Metalli ftalosiyaninler (Co II,Ni II and Zn II) i ve ii nin metal tuzlar ile siklotetramerizasiyondan hazirlandi. Ftalosiyaninler farkli cozuculer ile yikandi ve izole edildi. Yeni sentezlenen bil…