Autor: Pluta, Andrzej - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: A practical statistical approach to the reconstruction problem using a single slice rebinning method
Autorzy:: Cierniak, Robert
Pluta, Piotr
Kaźmierczak, Andrzej
Powiązania:: https://bibliotekanauki.pl/articles/1837534.pdf
Data publikacji:: 2020
Wydawca:: Społeczna Akademia Nauk w Łodzi. Polskie Towarzystwo Sieci Neuronowych
Tematy:: reconstruction algorithm
statistical iterative method
computed tomography
Opis:: The paper presented here describes a new practical approach to the reconstruction problem applied to 3D spiral x-ray tomography. The concept we propose is based on a continuous-to-continuous data model, and the reconstruction problem is formulated as a shift invariant system. This original reconstruction method is formulated taking into consideration the statistical properties of signals obtained by the 3D geometry of a CT scanner. It belongs to the class of nutating reconstruction methods and is based on the advanced single slice rebinning (ASSR) methodology. The concept shown here significantly improves the quality of the images obtained after reconstruction and decreases the complexity of the reconstruction problem in comparison with other approaches. Computer simulations have been performed, which prove that the reconstruction algorithm described here does indeed significantly outperforms conventional analytical methods in the quality of the images obtained.
Źródło:: Journal of Artificial Intelligence and Soft Computing Research; 2020, 10, 2; 137-149
2083-2567
2449-6499
Pojawia się w:: Journal of Artificial Intelligence and Soft Computing Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Grazing of Native Livestock Breeds as a Method of Grassland Protection in Roztocze National Park, Eastern Poland
Autorzy:: Kulik, Mariusz
Warda, Marianna
Gawryluk, Adam
Bochniak, Andrzej
Patkowski, Krzysztof
Lipiec, Antoni
Gruszecki, Tomasz
Pluta, Michał
Bielińska, Elżbieta
Futa, Barbara
Powiązania:: https://bibliotekanauki.pl/articles/123977.pdf
Data publikacji:: 2020
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: animal welfare
grasses
herb
weed
horse
sheep
Opis:: The studies were conducted in a forest settlement in Roztocze National Park (eastern Poland). The aim of the study was to evaluate the vegetation of two pastures depending on the type of use in the context of grassland protection, identify the trends of species composition changes, and analyse the yield and nutritional value of the biomass in the context of animal welfare. The studies were conducted on permanent grasslands varying in terms of fertility and location. Both sites were pastures where native breeds of livestock (Polish Lowland sheep of the Uhrusk and Polish Konik) were grazing. The fertile pasture was represented by the developing Lolio-Cynosuretum association, while the poor dry pasture – by a community with Common Bent (Agrostis capillaris L.) and a community with Mouse-Ear Hawkweed (Hieracium pilosella L.). The greatest changes over time were observed in the mowed site in the fertile pasture (increased share of tall grasses) and in the abandoned poor dry pasture (increased share of herbs and weeds). Livestock grazing conducted from 2010 influenced the stabilisation of the species composition. Tree and shrub seedlings were systematically eaten by livestock, which evidences a positive impact of grazing on the preservation of permanent grasslands in Roztocze National Park where forest ecosystems predominate. The assessment of the species composition and yielding indicated that the fertile pasture was characterised by good value while the poor pasture – low or sufficient value. In terms of nutrient yield and content, these pastures were poor or very poor, and their nutritive potential was largely dependent on the meteorological conditions. While the livestock density in the pastures, ranging from 1.1 to 1.5 LSU ha^–1 in the years under study, was appropriate, grazing should be limited in the summer months, particularly in periods of drought, by reducing the number of animals or by additional feeding to ensure their welfare.
Źródło:: Journal of Ecological Engineering; 2020, 21, 3; 61-69
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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