574 research outputs found
ErdĂ©lyi magyar pedagĂłgusok MagyarorszĂĄgra törtĂ©nĆ ĂĄttelepedĂ©se a szakirodalom tĂŒkrĂ©ben
A rendszervĂĄltĂĄst követĆen RomĂĄnia terĂŒletĂ©rĆl, fĆleg ErdĂ©lybĆl sok magyar nemzetisĂ©gƱ ember döntött Ășgy, hogy ĂĄttelepĂŒl MagyarorszĂĄgra. Több migrĂĄciĂłs kutatĂĄs feladatul tƱzte ki, hogy szĂĄmszerƱsĂti a kivĂĄndorolt populĂĄciĂł nagysĂĄgĂĄt, nem Ă©s korosztĂĄlyhoz valĂł tartozĂĄsĂĄt. A kivĂĄndorolt populĂĄciĂł vĂ©gzettsĂ©gĂ©t illetĆen, viszont kevĂ©s felmĂ©rĂ©s, kutatĂĄs szĂŒletett, valĂłszĂnƱleg azĂ©rt is, mert a kivĂĄndoroltak nem maradtak meg a kĂ©pzĂ©sĂŒknek megfelelĆ pĂĄlyĂĄn, nem honosĂtottĂĄk a diplomĂĄikat, illetve nehĂ©z feladatnak bizonyult az ĂĄttelepedettek szakmai nyomon követĂ©se
Functional differentiation under simultaneous conservation constraints (Constrained functional differentiation in statistical physics and hydrodynamics)
Analytical formulae for functional differentiation under simultaneous
K-conservation constraints, with K the integral of some function of the
functional variable, are derived, making the proper account for the
simultaneous conservation of normalization and statistical averages, e.g.,
possible in functional differentiation in nonvariationally built physical
theories, which gets particular relevance for nonequilibrium, time-dependent
theories.Comment: final version, published in J Phys A; 14 pages; with (34)-(35) and a
note after (10) added (to v3
Synthesis of Spinel Ferrites in Radiofrequency Thermal Plasma Reactor
Formation of nanosized zinc-ferrites and nickel-zinc ferrites from iron- and
zinc oxide powders and corresponding nitrate solutions, respectively, was studied in RF
thermal plasma conditions. The products were characterized for chemical composition,
phase conditions, particle size distribution, morphologies and saturation magnetization.
Effects of synthesis conditions on properties of products were studied in details
Synthesis of Zinc Ferrites in RF Thermal Plasma Reactor
Formation of nanosized zinc ferrite spinels was studied
from iron- and zinc oxide powders and corresponding
nitrate solutions, respectively in a radiofrequency thermal
plasma reactor. From the viewpoint of applications,
the research was motivated by the potential use of these
materials in advanced magnetic devices on the one
hand, and by their biomedical applications such as drug
carriers or agents for cancer treatment by hyperthermia
on the other. In this work effects of synthesis conditions
on properties of products were studied in details. The
products were characterised for chemical composition,
phase conditions, particle size distribution, morphologies
and saturation magnetisation. Most products exhibited
ferrimagnetic behaviour. Correlations among domain-
and particle sizes were also investigated. Conditions
for the synthesis of nanosized, inverse zinc ferrites
of high saturation magnetisation were established. It
was proved that in thermal plasma conditions normal
and inverse ferrites could be produced in a single step
process
MICROPROCESSOR-CONTROLLED GAS ANALYSER SYSTEM FOR MULTI-CHANNEL MASS SPECTROMETRIC MEASUREMENT OF PLANT GASES
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