Претраживање
Приказ резултата 11-20 од 59
Modifications of AISI 1045 steel by picosecond Nd:YAG laser at 266 nm; comparison with 532 and 1064 nm pulses
(Elsevier, Amsterdam, 2009)
Interaction of Nd:YAG laser, operating at 266 nm wavelength and a pulse duration of 40 ps, with AISI 1045 steel was studied. Surface damage threshold was estimated to be 0.14 J/cm(2). The steel surface modi. cation was ...
Stability and electronic properties of rhenium sulfide nanotubes
(Wiley-V C H Verlag Gmbh, Weinheim, 2009)
The structural properties, the stability and the electronic properties of single-walled ReS2 nanotubes are studied for-the first time using the density-functional tight-binding method (DFTB). It is found, that the properties ...
Spin-trapping of oxygen free radicals in chemical and biological systems: New traps, radicals and possibilities
(Pergamon-Elsevier Science Ltd, Oxford, 2008)
The choice of the spin-trap that is to be applied in any EPR study represents the crossroad between a comprehensive investigation and an "ordinary" quantification of production of radicals. So, the scope of our study was ...
A study of magneto-crystalline alignment in sintered barium hexaferrite fabricated by powder injection molding
(Elsevier Science Bv, Amsterdam, 2009)
Barium hexaferrite permanent magnets were produced by powder injection molding. Starting barium hexaferrite powder was prepared from a Fe2O3 and BaCO3 powder mixture by calcination followed by milling. The feedstock for ...
Acipenser sturio and Acipenser nudiventris in the Danube - extant or extinct?
(Wiley, Hoboken, 2009)
The presence of Atlantic sturgeon (Acipenser sturio) and ship sturgeon (Acipenser nudiventris) in the Danube has been known through only occasional, chance sightings; significant uncertainty remains as to whether these ...
Magnetic properties of pure and Ca and Sr doped LaMnO3 prepared by polymerisable complex method
(Maney Publishing, Leeds, 2009)
In this work, pure and Ca2+ and Sr2+ doped LaMnO3 powders were obtained using polymerisable complex method from citrate precursors. La2O3, Mn(NO3)(2) and citric acid were used for citrate formation, and ethylene glycol was ...
Electrical and transport properties of nickel manganite obtained by Hall effect measurements
(Springer, Dordrecht, 2009)
Intrinsic resistivity and carrier transport parameters of sintered nickel manganite samples (NTC thermistor grade) were determined using a Hall effect measurement system based on the van der Pauw method. Powder mixtures ...
Anticancer Properties of Ganoderma Lucidum Methanol Extracts In Vitro and In Vivo
(Routledge Journals, Taylor & Francis Ltd, Abingdon, 2009)
Anticancer activities of various extracts of the medicinal mushroom, Ganoderma lucidum, have been widely demonstrated and are mainly associated with the presence of different bioactive polysaccharides and triterpenoids. ...
Far infrared spectroscopy of Pb0.85Sn0.15Te alloy doped with Ni
(Carl Hanser Verlag, Munich, 2008)
Far infrared reflectivity spectra of single crystal Pb0.85Sn0.15Te doped with Ni were measured in the temperature range between 10 K and 300 K. Analysis of the experimental spectra was made using a fitting procedure based ...
EM Simulator Analysis of Optimal Performance Thick-Film Segmented Thermistors versus Material Characteristics Selection
(IEEE-Inst Electrical Electronics Engineers Inc, Piscataway, 2008)
In this paper, an alternative approach to the analysis of thick-film segmented negative temperature coefficient thermistors based on the use of a commercial electromagnetic simulator tool is presented. The influence of the ...