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The dependence of critical temperature on oxygen concentration in YBa2Cu3O6+x in terms of the fragmented chain model
(Central European Journal of Physics, 2011)
An extended ASYNNNI model, that beside nearest-neighbour and next-nearest neighbour O-O interactions in the basal plane also includes interactions between the three nearest oxygen atoms, is used to describe the statistics ...
Sustainability estimation of energy system options that use gas and renewable resources for domestic hot water production
(Energy, 2011)
Two possible substitutions for fossil fuel used in heat production are biomass and solar energy. This paper presents an evaluation of various energy sources for hot water production in a heating plant. The heating plant ...
Numerical Simulation of the Air Flow Around the Arrays of Solar Collectors
(Thermal Science, 2011)
This paper deals with the numerical simulation of air flow around the arrays of flat plate collectors and determination of the flow field, which should provide a basis for estimating a convective heat losses, a parameter ...
Synthesis and properties of a Cu-Ti-TiB2 composite hardened by multiple mechanisms
(Materials Science and Engineering A: Structural Materials Properties Microstructure and Processing, 2011)
Multiple hardening mechanisms of a copper matrix have been presented and discussed. The gas atomized Cu-0.6 wt.%Ti-2.5 wt.%TiB2 (Cu-Ti-TiB2) powders were used as starting materials. Dispersoid particles TiB2 were formed ...
LaYO3:Sm3+ Nanocrystalline Phosphor: Preparation and Emission Properties
(Acta Physica Polonica A, 2011)
Samarium doped LaYO3 nanocrystalline phosphor powders are obtained by polymer complex solution method. Stoichiometric quantities of La2O3, Y2O3 and for dopant ions Sm2O3 were dissolved in hot nitric acid. Polyethylene ...