Autor: Rerak, J. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Chromosome numbers and stomatal cell length in Taraxacum sect. Palustria from Poland
Autorzy:: Marciniuk, J
Rerak, J.
Grabowska-Joachimiak, A.
Jastrzab, I.
Musial, K.
Joachimiak, A.J.
Powiązania:: https://bibliotekanauki.pl/articles/19490.pdf
Data publikacji:: 2010
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:: Chromosome numbers are given for the following species of Taraxacum sect. Palustria from Poland: T. paucilobum Hudziok (2n = 24, 25), T. belorussicum Val. N. Tikhom. (2n = 24), T. subdolum Kirschner & Štěpánek (2n = 24), T. udum Jordan (2n = 24), T. trilobifolium Hudziok (2n = 24), T. bavaricum Soest (2n = 24), T. portentosum Kirschner & Štěpánek (2n = 32), T. vindobonense Soest (2n = 32), and T. brandenburgicum Hudziok (2n = 32). The chromosome numbers of T. belorussicum and T. portentosum are published for the first time, and for T. subdolum, T. bavaricum and T. brandenburgicum for the first time from Poland. The analyzed group of taxa is heterogenous in respect of stomatal size, and after pooling of data the tetraploids show bigger stomata than the triploids.
Źródło:: Acta Biologica Cracoviensia. Series Botanica; 2010, 52, 1; 117-121
0001-5296
Pojawia się w:: Acta Biologica Cracoviensia. Series Botanica
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Influence of Dy Doping on the Properties of BiFeO3
Autorzy:: Dzik, J.
Feliksik, K.
Pikula, T.
Panek, R.
Rerak, M.
Powiązania:: https://bibliotekanauki.pl/articles/355238.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Doped BiFeO3
mixed-oxide method
ceramics
Dy3+
Opis:: The aim of this research was to fabricate and study the properties of Bi_1-x Dy_xFeO₃ (for x = 0, 0.05, 0.07, 0.1) ceramics materials. Simple oxide powders Bi₂O₃, Dy₂O₃ and Fe₂O₃ were used to fabricate Bi_1-xDy_xFeO₃ ceramics by mixed oxide method followed by free sintering. The study presents changes in microstructure and crystal structure as well as in dielectric properties and magnetic properties caused by modification of BiFeO₃ with dysprosium dopant.
Źródło:: Archives of Metallurgy and Materials; 2018, 63, 3; 1351-1355
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Influence of Lanthanum Dopant on the Structure and Electric Properties of BaBi2Nb2O9 Ceramics
Autorzy:: Adamczyk-Habrajska, M.
Goryczka, T.
Szalbot, D.
Dzik, J.
Rerak, M.
Bochenek, D.
Powiązania:: https://bibliotekanauki.pl/articles/353535.pdf
Data publikacji:: 2020
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: ferroelectric relaxor
ceramics
impedance spectroscopy
Opis:: The paper reports the consequences of lanthanum modifications of barium bismuth niobiate (BaBi₂ Nb₂ O₉) ceramics. The discussed materials were prepared by solid state synthesis and a one-step sintering process. The investigations are focused on dielectric aspects of the modification. The presented results reveal that the trivalent lanthanum ions incorporate twovalent barium ions, which is connected with the creation of A-site cationic vacancies as well as oxygen vacancies. Such a scenario results in significant decreasing in grain boundaries resistivity. The activation energy of grain boundaries conductivity is significantly reduced in the case of lanthanum admixture.
Źródło:: Archives of Metallurgy and Materials; 2020, 65, 1; 207-214
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

Artykuł

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