Autor: Król, Ż - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Effect of age and stage of lactation on whey protein content in milk of cows of different breeds
Autorzy:: Krol, J.
Brodziak, A.
Litwinczuk, Z.
Litwinczuk, A.
Powiązania:: https://bibliotekanauki.pl/articles/30979.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:: The aim of the study was to determine the effect of age of cows, i.e. subsequent lactation and stage of lactation, on bioactive whey protein content in milk of dairy cows of six primary breeds kept in Poland. In all cases the significant correlations between lactoferrin concentration in milk and stage of lactation was stated. Its content gradually increased with the course of lactation but the changes in the content of this protein were highly dependent on breed of cows, what was indicated also by high interactions between breed and stage of lactation.
Źródło:: Polish Journal of Veterinary Sciences; 2013, 16, 2
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Adhesion of Malassezia pachydermatis of different growth type to canine epithelial cells
Autorzy:: Florek, M.
Krol, J.
Staroniewicz, Z.
Bazanow, B.
Powiązania:: https://bibliotekanauki.pl/articles/30354.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:: A total of 100 Malassezia pachydermatis strains recovered from skin and mucosal membranes of dogs were evaluated for their adhesive properties. Two types of growth, related to colony morphology on Sabouraud agar, were observed (type I and II). The mean number of fungal cells attaching to canine buccal epithelial cells was found to be 17. The number of adhered cells was greater (statistically significant at the level of p < 0.01) in strains belonging to the type I.
Źródło:: Polish Journal of Veterinary Sciences; 2014, 17, 2; 365-366
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Characteristic of Cast Zn-Al-Cu Alloy Microstructure after Modification
Autorzy:: Krupińska, B.
Krupiński, M.
Rdzawski, Z.
Labisz, K.
Król, M.
Powiązania:: https://bibliotekanauki.pl/articles/379655.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: innovative cast materials
innovative cast technologies
metallography
modification
cast zinc alloys
microstructure
nowoczesne materiały odlewnicze
innowacyjne technologie odlewnicze
metalografia
modyfikacja
mikrostruktura
stop cynku
Opis:: Cast zinc alloys have similar properties to aluminium alloys. The differences are due to the lower melting point and higher density. Zinc has a density of 7.14 g/cm3, a melting point of 419.5°C and the boiling temperature of 906º C. In the temperature range from 150 to 200°C, zinc has good susceptibility to plastic deformation. It is also resistant to atmospheric factor influence, but is not resistant to acids. The main use of zinc alloy, is the production of thin-walled casts that require high precision. Zinc alloys are also used for die casting moulds, housings and covers as well as a variety of devices that are used in the precision industry, electrical engineering, automotive and construction industry. Properly performed chemical modification leads to improve of properties of the produced castings. Therefore it is very important to know how the cast structure with the change of the chemical composition by adding metallic modifiers to the liquid metal. In this work there was studied the effect of chemical modification of cast zinc alloy on the properties and microstructure of the alloys before and after modification. Modified alloys were prepared by adding modifiers in the range of 0.1% to 1% in form of Ti- Sr and B as aluminium master alloy and then cast into the metal moulds. Next the thermo-derivative analysis was performed of the modified Zn-Al-Cu alloy, the microstructure investigation was carried out using light microscopy and scanning electron microscopy with EDS X-ray microanalysis usage as well as hardness was measured of the modified Zn-Al-C alloys.
Źródło:: Archives of Foundry Engineering; 2014, 14, 4 spec.; 77-82
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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