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Wyszukujesz frazę "Urbanowicz, P." wg kryterium: Autor


Wyświetlanie 1-7 z 7
Tytuł:
Soil air-water properties in Catena of Sepopol Lowland
Autorzy:
Smolczynski, P.
Orzechowski, M.
Kalisz, B.
Sowinski, P.
Urbanowicz, P.
Powiązania:
https://bibliotekanauki.pl/articles/905467.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Opis:
In the sequence of soil composed of black earths, deluvial soils, organic soils covered with a thin layer of mineral-organic deposit and moorsh soils, soil texture, bulk density, content of organic carbon and organic matter, total porosity, total and readily available water as well as resources of organic matter and water in 0-25 cm and 0-100 cm layers of the soil profile were studied. A catenal variabilities of organic matter content and physical-water properties were found. Physical properties and the contents of total and readily available water depended on soil texture, organic matter content and location in a relief. Total porosity, field water capacity and volume of macropores were positively correlated with organic matter content, and negatively with bulk density. Differences in studied properties between the pedons of black earths and deluvial soils were small, whereas these differences between deluvial and moorsh soils were distinct. In the development of water resources in the profiles of these soils, presence of organic subsoil with high retention capacity played the important role. The studied soils had unfavorable distribution of soil pores, resulting from a small volume of air pores.
Źródło:
Polish Journal of Soil Science; 2016, 49, 1
0079-2985
Pojawia się w:
Polish Journal of Soil Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Superparamagnetic-Like Behaviour in RE$\text{}_{2}$WO$\text{}_{6}$ Tungstates (Where RE = Nd, Sm, Eu, Gd, Dy, Ho and Er)
Autorzy:
Groń, T.
Tomaszewicz, E.
Urbanowicz, P.
Duda, H.
Mydlarz, T.
Powiązania:
https://bibliotekanauki.pl/articles/2048133.pdf
Data publikacji:
2011-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
75.20.-g
75.25.Dk
75.30.Cr
73.61.Ng
Opis:
The magnetization isotherms were used to study the superparamagnetic-like behaviour in polycrystalline (powder) RE$\text{}_{2}$WO$\text{}_{6}$ tungstates (where RE = Nd, Sm, Eu, Gd, Dy, Ho and Er). The magnetization isotherms of the majority tungstates under study revealed both the spontaneous magnetic moments and hysteresis characteristic for the superparamagnetic-like behaviour with blocking temperature T$\text{}_{B}$ ≈ 30 K except the Sm$\text{}_{2}$WO$\text{}_{6}$ and Eu$\text{}_{2}$WO$\text{}_{6}$ compounds.
Źródło:
Acta Physica Polonica A; 2011, 119, 5; 708-710
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Electrical Properties of Sr₂InV₃O₁₁
Autorzy:
Groń, T.
Filipek, E.
Pacześna, A.
Urbanowicz, P.
Sawicki, B.
Duda, H.
Powiązania:
https://bibliotekanauki.pl/articles/1398582.pdf
Data publikacji:
2016-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
72.20.Pa
72.80.Ga
75.20.-g
Opis:
The electrical conductivity σ (T) and thermoelectric power S(T) measurements of Sr₂InV₃O₁₁ showed the insulating state and the change of sign of thermopower from p to n at $T_{n-p}$=400 K. The I-V characteristics provided the evidence of symmetrical and non-linear behaviour typical of strong emission of charge carriers induced by temperature and voltage. Relative dielectric permittivity $ε_{r}$ as well as loss tangent (tan δ) strongly depend both on the temperature in the range of 295-400 K and the frequency in the range of 5×10² to 1×10⁶ Hz, showing the broad maximum at 320 K. These effects are considered as a relaxation process like in the Maxwell-Wagner or Jonscher model as well as the conduction of electric current, as determined by the Joule-Lenz law.
Źródło:
Acta Physica Polonica A; 2016, 130, 5; 1239-1241
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On-Line Noise Suppression for Enhancing Speech Recognition
Autorzy:
Urbanowicz, K.
Fronczak, P.
Hołyst, J.
Powiązania:
https://bibliotekanauki.pl/articles/1807766.pdf
Data publikacji:
2009-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
05.45.Tp
43.72.Dv
43.50.Ki
43.72.Ne
Opis:
An experimental setup has been designed that makes possible a real-time noise reduction and an increase of automatic word recognition rate. The applied algorithm uses a dynamical filtering method for investigated time-series and has been implemented in Spartan 3 FPGA evaluation board RC10 made by Celoxica. We show that our approach increases the number of correctly recognized words in the commercial speech recognition program ViaVoice 10.
Źródło:
Acta Physica Polonica A; 2009, 116, 2; 119-126
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hygroscopic properties of green coffee transported by sea
Autorzy:
Ruszkowska, M.
Dmowski, P.
Urbanowicz, K.
Powiązania:
https://bibliotekanauki.pl/articles/2063958.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
cargo transportation
green coffee
cargo transportation by sea
sea transportation
hygroscopic properties
coffee
Opis:
The aim of research was to evaluate the hygroscopic properties of green coffee beans determining its quality during sea transportation. The research material consisted of seven samples of unroasted bean coffee from different countries of origin (Kenya, India, Ethiopia, Columbia and Guatemala) obtained directly from the coffee producer. The water content of green coffee must not exceed 12% as it then has a tendency to grow mould and become musty. Coffee beans require particular temperature, humidity/moisture and possibly ventilation conditions and therefore, to explore and predict the behaviour during transport of green coffee its equilibrium moisture content must be determined for a range of transport temperatures and relative humidity levels . The present paper focuses on the evaluation of the hygroscopic properties of green coffee from different countries of origin based on isotherms of water vapour sorption and characteristic selected parameters of the surface microstructure determining transport conditions and the microbiological stability of this cargo. While assessing the quality and transport durability of green coffee beans, based on the parameters of monomolecular layer capacity and the specific surface area of sorption, it was found that especially samples of coffee from Guatemala and Ethiopia were the least susceptible to changes in the transport conditions.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2021, 15, 3; 641--647
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Simple Model of Local Prices and Associated Risk Evaluation
Autorzy:
Urbanowicz, K.
Hołyst, J.
Richmond, P.
Powiązania:
https://bibliotekanauki.pl/articles/1812217.pdf
Data publikacji:
2008-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
89.65.Gh
75.10.Hk
Opis:
A simple spin system is constructed to simulate dynamics of asset prices and studied numerically. The outcome for the distribution of prices is shown to depend both on the dimension of the system and the introduction of price into the link measure. For dimensions below 2, the associated risk is high and the price distribution is bimodal. For higher dimensions, the price distribution is Gaussian and the associated risk is much lower. It is suggested that the results are relevant to rare assets or situations where few players are involved in the deal making process.
Źródło:
Acta Physica Polonica A; 2008, 114, 3; 501-506
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Molecular analysis of Trichomonas gallinae in racing pigeons from Upper Silesia, Poland
Autorzy:
Bobrek, K.
Urbanowicz, J.
Chorbinski, P.
Gawel, A.
Powiązania:
https://bibliotekanauki.pl/articles/31120.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
The aim of the study was the molecular analysis of ITS1/5.8S rRNA/ITS2 region of Trichomonas gallinae isolates from racing pigeon lofts in Upper Silesia, Poland. The analysed region is very useful for the taxonomy of the Trichomonadidae family and indicates the possible existence of different genotypes or species within the T. gallinae. A comparison of the complete ITS1-5.8S-ITS2 region of obtained sequences revealed two different sequences. Twenty-three of the isolates (62%) showed the first sequence (KU954106) while fourteen isolates (38%) showed the second sequence type (KU954107), which were homologous with sequences from Genbank. The phylogenetic analysis showed that the two T. gallinae genotypes which occurred in the pigeons from Upper Silesia are widespread among European countries.
Źródło:
Polish Journal of Veterinary Sciences; 2017, 20, 1
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-7 z 7

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