Autor: Płaska, J. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Preparation of cobalt titanates via co-precipitation while using industrial intermediates as titanium precursors
Autorzy:: Przepiera, A.
Płaska, J.
Przepiera, K.
Jabłoński, M.
Konratowska, A.
Powiązania:: https://bibliotekanauki.pl/articles/779320.pdf
Data publikacji:: 2009
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: związki tytanu
tytanian kobaltu
otrzymywanie tytanianu kobaltu
siarczan tytanylu
dwutlenek tytanu
titanium compounds
cobalt titanates preparation
titanyl sulfate
hydrous titanium dioxide
Opis:: This paper reports on the results of cobalt titanates preparation by calcination of green bodies obtained by a co-precipitation method. For the investigations were used: as titanium sources, acidic solutions of titanyl sulfate and hydrous titanium dioxide, originating from the production process of titanium dioxide by sulfate method. The composition of the obtained materials was determined using titration methods. The calcined powders were characterized by X-ray diffraction method. It has been found that the obtained products are composed of cobalt methatitanate CoTiO3 or cobalt orthotitanate Co2TiO4 occurring as single phases, and also as cobalt titanates and titanium dioxide phase mixtures. The proposed method of proceeding can be used for the preparation of series of transition metals titanates, such as nickel, iron, zinc, copper and also aluminium titanates.
Źródło:: Polish Journal of Chemical Technology; 2009, 11, 2; 51-54
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Zróżnicowanie zespołów ryb w małych rzekach położonych na terenach zalesionych i niezalesionych
Diversity of fish fauna in small rivers located in forested and non-forested areas
Autorzy:: Rechulicz, J.
Płaska, W.
Powiązania:: https://bibliotekanauki.pl/articles/989259.pdf
Data publikacji:: 2016
Wydawca:: Polskie Towarzystwo Leśne
Tematy:: tereny lesne
tereny niezalesione
zlewnie rzek
cieki wodne
rzeki
fauna
ryby
bogactwo gatunkowe
wskazniki roznorodnosci
zageszczenie zwierzat
ichthyofauna
species richness
streams
habitat
forest catchment basin
Opis:: The knowledge on the ichthyofauna community in forest complexes in our country is mainly limited to few information on fish species found in rivers and reservoirs located in the protected areas. Hence, the aim of present study was to evaluate the importance of forested and non−forested areas, which include small rivers, on the occurrence of fish communities. The main criteria of evaluation were species richness, biodiversity and density of fish from rivers located in forested and non−forested areas in Roztocze and Puszcza Solska (south−eastern of Poland). The 12 study sites in the two groups of small rivers located on forested and non−forested areas were chosen (tab. 1). The control fishing was performed by electrofishing using IUP−12 gear. The total of 779 individuals of fish and lamprey belonging to 22 species were caught during the study. In the sections of rivers located in non−forested areas we noted 18 species, while in the rivers in forested areas – 16 ones. The analysis of the abundance domination showed that the dominant species in the rivers sections on non−forested areas were perch, roach and gudgeon, while in rivers located in forested areas: gudgeon, dace and brown trout. Simultaneously, in abundance of fish fauna from rivers in forested area a significant share of eastern sculpin, burbot and European brook lamprey were noted. The fish communities from both habitats showed similar values of biological diversity indices, but slightly higher density was observed in the rivers located in non−forested areas. The fish species composition was highly dependent on the close surroundings of the watercourse and the type of riparian zone. For the habitats from river located in non−forested areas the common, associated with aquaculture and also invasive fish species were characteristic. However, in the rivers in wooded areas, the typical for small streams and the rheophilic fish species were more frequent. The results of present study showed, that the largest differences in the dominance in fish structure and indicators of fidelity to the habitat preferences between the groups of rivers were determined.
Źródło:: Sylwan; 2016, 160, 04; 344-352
0039-7660
Pojawia się w:: Sylwan
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Preliminary study of ichthyofauna in extensively exploited Głębokie Uścimowskie Lake with abnormal fish structure
Wstępne badania ichtiofauny ekstensywnie użytkowanego jeziora Głębokie Uścimowskie o zaburzonej strukturze gatunkowej ryb
Autorzy:: Płaska, W.
Rechulicz, J.
Powiązania:: https://bibliotekanauki.pl/articles/2197044.pdf
Data publikacji:: 2012
Wydawca:: Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Źródło:: Annales Universitatis Mariae Curie-Skłodowska. Sectio EE: Zootechnica; 2012, 30, 3; 66-77
0239-4243
2083-7399
Pojawia się w:: Annales Universitatis Mariae Curie-Skłodowska. Sectio EE: Zootechnica
Dostawca treści:: Biblioteka Nauki

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