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1
Dobrze ocenić przydatność nawozów azotowych
100%
Bauer B.
Top Agrar Polska
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2008
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nr 03
2
Czy nawozy azotowe faktycznie zakwaszają?
100%
Bauer B.
Top Agrar Polska
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2013
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nr 01
3
Content available Prediction of Chunky Graphite in Nodular Cast Iron on the Base of Numerical Simulation and Experimental Data
51%
Bauer B. , Mihalic Pokopec I. , Petrič M. , Mrvar P.
Archives of Metallurgy and Materials
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2020
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tom Vol. 65, iss. 1
343--347
EN
Chunky graphite has been recognized for a long time as one of the major problems in production of heavy section nodular cast iron. A great number of studies have been conducted to describe the chunky graphite formation, but a clear understanding of its appearance and a safe mastering of the melt preparation to avoid chunky graphite are not yet available. In the present work the cooling curves were recorded in large cone blocks and standard TA cup. According to measured data from the cone block, melt characteristics and heat transfer coefficient between casting and mould were adjusted in the ProCAST® simulation software. For a near-eutectic nodular cast iron test melt with 0.7 wt.% Ni, relationship between the area of the cone block affected by chunky graphite and simulation software results has been observed, i.e., thermal modulus and time to solidus.
4
Czochralski Growth of Decagonal AlCoNi Quasicrystals from Al-rich Solution
51%
Meisterernst G. , Bauer B. , Giller P.
Zeszyty Historyczne Politechniki Warszawskiej
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2014
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tom z. 16
107--112
EN
Czochralski growth of cm size decagonal AlCoNi single crystals from Al-rich high-temperature solutions is described using native seeds oriented parallel to all symmetrically different crystal directions. Morphological observations allow first hints with respect to anisotropic growth rates. But only classical detachment experiments according to the original idea of Jan Czochralski reveal quantitative results of kinetically limited growth rates. Geometric conditions of wetted plane interfaces as well as aspects of constitutional supercooling affect the detachment experiments. Thus, in only one specific orientation of the decagonal quasicrystal quantitative data for the maximum growth rate could be obtained.
5
Nawożenie w systemie strip-till
20%
Bauer B.
Top Agrar Polska
|
2019
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nr 04
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