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M.M. Krupa,A.N. Pogorily,L.L. Sartinska,Yu.V. Skirta,R. Zaharov 한국물리학회 2010 Current Applied Physics Vol.10 No.1
Results of experimental investigations of laser radiation interaction with the Ti, Co, NiFe, TbFe and LaSrMnO3 films are presented. It is shown, that it is possible to improve magnetic characteristics and to obtain magnetic films with regular distribution of nanodots by the laser radiation. It is observed an increasing of magnetic permeability and the reduction of the coercive force after irradiation of the NiFe films by the nanosecond laser pulses that are induced by the substantial growth of the size of the nanodots in the process of recrystallization. Magnetic nanodots of 100.200 nm size are produced by the method of the laser cutting of the continuous magnetic films, or are formed in a nonmagnetic matrix by the diffusion in the multilayered films and oxidization of TbFe and LaSrMnO3x films at the irradiation of the nanosecond laser pulses.
Economic Values for Dairy Sheep Breeds in Slovakia
Krupova, Zuzana,Wolfova, M.,Wolf, J.,Oravcova, M.,Margetin, M.,Peskovicova, D.,Krupa, E.,Dano, J. Asian Australasian Association of Animal Productio 2009 Animal Bioscience Vol.22 No.12
Economic values of 14 production and functional traits for two Slovak dairy sheep breeds (Improved Valachian and Tsigai) were calculated. Semi-extensive production systems with one lambing per year were simulated using a bio-economic deterministic computer model. The marginal economic value of a trait was defined as the partial derivative of the profit function with respect to that trait. The relative economic value expressed the percentage proportion of standardized economic value (marginal economic value${\times}$genetic standard deviation) of a trait in the sum of the absolute values of the standardized economic values over all traits. Milk yield was of highest relative importance (26% and 32% in Improved Valachian and Tsigai) followed by productive lifetime and conception rate of ewes (16% and 15% in Improved Valachian and Tsigai, in both traits). Conception rate of female lambs and litter size had nearly the same relative economic importance in both breeds (9% to 11%). Survival rate of lambs at lambing and till weaning reached slightly lower economic values (4% to 7%). The economic importance of all remaining traits was less than 4%.