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Wyświetlanie 1-15 z 29
Tytuł:
Modernistyczna architektura Raciborza
Modernism in Raciborz (Ratibor – Upper Silesia)
Autorzy:
Bednarski, A.
Powiązania:
https://bibliotekanauki.pl/articles/115327.pdf
Data publikacji:
2015
Wydawca:
Wyższa Szkoła Techniczna w Katowicach
Tematy:
modernizm
architektura
zabudowa mieszkaniowa
funkcjonalizm
detal architektoniczny
zabytek
modernism
architecture
housing
functionalism
architectonic detail
heritage
Opis:
Artykuł przybliża przykłady zabudowy Raciborza zrealizowane w latach 1918-1945. Architektura ta, nie tylko w Raciborzu, ale i niemal w każdym większym mieście dawnego obszaru Republiki Weimarskiej i III Rzeszy stanowi znaczący procent tkanki architektonicznej miasta. Zarówno budynki użyteczności publicznej, jak i zabudowa mieszkaniowa typowa, masowa, funkcjonalna, to architektura często niedostrzegana i niedoceniana.
The article shows examples of architecture which was built in 1918-1945 in Raciborz (Ratibor). This architecture is a mainly part of many cities from The Weimar Republic period. Administration buildings, churches, etc. and especially housing are mostly unseen, and takes no attention because of its popularity, good simple function, typical solutions, no sophisticated details. It’s really worth to describe it.
Źródło:
Zeszyty Naukowe Wyższej Szkoły Technicznej w Katowicach; 2015, 7; 33-40
2082-7016
2450-5552
Pojawia się w:
Zeszyty Naukowe Wyższej Szkoły Technicznej w Katowicach
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Monitoring of secondary forest succession on abandoned farmland using LiDAR point clouds
Autorzy:
Szostak, M.
Bednarski, A.
Wężyk, P.
Powiązania:
https://bibliotekanauki.pl/articles/145380.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
mapowanie
lotnicze skanowanie laserowe
dane katastralne
ALS
nDSM
LULC changes
Opis:
The purpose of the study was an assessment of LiDAR point clouds for automating the mapping of land use and land cover changes, mainly land abandonment and the process of secondary forest succession. Detailed information about land cover was determined based on airborne laser scanning data. The presented study focuses on the analysis of the spatial range and structure of vegetation. The study area was located in Milicz district in the voivodeship of Lower Silesia – the central west part of Poland. The areas of interest were parcels where agricultural land had been abandoned and forest succession processes had progressed. Analysis of the spatial range of the secondary forest succession was carried out using a reclassified nDSM. Reclassification of the nDSM was done using > 1 m, > 2 m and > 3 m for the pixel values, representing the height of vegetation above the ground. Parameters such as height of vegetation, standard deviation of height and cover density were calculated, to show the process of the increase in forest succession on abandoned agricultural land. The results confirmed a discrepancy between the cadastral data and the actual use of the plots. In the study area, more than three times as much forested and wooded area was detected than had been recorded in official databases. Analyses based on airborne laser scanning point clouds indicated significant diversity in the vertical and horizontal structure of vegetation. The results demonstrated gradual succession of greenery in the research area.
Źródło:
Geodesy and Cartography; 2018, 67, 2; 305-319
2080-6736
2300-2581
Pojawia się w:
Geodesy and Cartography
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Antimicrobial resistance of thermophilic Campylobacter spp. isolated from cattle in Poland
Autorzy:
Bednarski, M
Wieliczko, A.
Powiązania:
https://bibliotekanauki.pl/articles/32555.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Polska
cattle
Campylobacter
isolation
antimicrobial resistance
antibiotic resistance
food-borne disease
human gastroenteritis
Campylobacter jejuni
Opis:
Campylobacter species are among the most frequently identified bacterial causes of human gastroenteritis. Because Campylobacter spp. harbored by cattle can be transmitted to humans, in this study we investigated antimicrobial resistance of thermophilic Campylobacter isolated from cows. Our study included 150 strains of Campylobacter (143 strains of C. jejuni and 7 strains of C. coli) isolated from cows in South-Western Poland. The minimal inhibitory concentration (MIC) to ciprofloxacin, erythromycin, gentamicin and tetracycline were determined using the agar dilution methodology. All strains of C. coli were susceptible to all four drugs studied. The most frequently detected resistance of C. jejuni was to ciprofloxacin (26 strains 18.2%). Resistance to tetracycline was observed in 5 strains (3.5%). All strains of C. jejuni were susceptible to erythromycin and gentamicin.
Źródło:
Polish Journal of Veterinary Sciences; 2010, 13, 1; 189-191
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
EPR Study of VO$\text{}^{2+}$ Center in Fast Proton Conductor K$\text{}_{3}$H(SO$\text{}_{4}$)$\text{}_{2}$
Autorzy:
Ostrowski, A.
Waplak, S.
Bednarski, W.
Powiązania:
https://bibliotekanauki.pl/articles/2043409.pdf
Data publikacji:
2005-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.50.-f
76.30.-v
Opis:
The pretransitional phenomena of superprotonic phase transition (T$\text{}_{sp}$=471 K) were studied in detail by X-band continuous wave EPR spectra of K$\text{}_{3}$H(SO$\text{}_{4}$)$\text{}_{2}$ crystal doped with VO$\text{}^{2+}$ ions. Three kinds of VO$\text{}^{2+}$ complexes (magnetically equivalent but structurally non-equivalent) denoted as VO$\text{}^{2+}$(I), VO$\text{}^{2+}$(II), and VO$\text{}^{2+}$(III) were found. "Smearing out" of the superhyperfine structure was observed as a result of interbond proton motion. VO$\text{}^{2+}$ impurity replaces K$\text{}^{+}$ ion and experiences the same average crystal field gradient at T$\text{}_{sp}$=471 K for I- and II-type complexes. The increase in interbond proton frequency hopping above 360 K is a reason of significant line broadening.
Źródło:
Acta Physica Polonica A; 2005, 108, 1; 127-135
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
EPR Study of Cu$\text{}^{2+}$ Doped Fast-Proton Conductor K$\text{}_{3}$H(SO$\text{}_{4}$)$\text{}_{2}$ in the Temperature Range 100-450 K
Autorzy:
Ostrowski, A.
Bednarski, W.
Waplak, S.
Powiązania:
https://bibliotekanauki.pl/articles/2037037.pdf
Data publikacji:
2003-12
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.50.-f
76.30.-v
Opis:
The K$\text{}_{3}$H(SO$\text{}_{4}$)$\text{}_{2}$ doped with Cu$\text{}^{2+}$ ion was studied in detail by X-band CW EPR. Two kinds of Cu$\text{}^{2+}$ complexes (magnetically and structurally nonequivalent) denoted as Cu$\text{}^{2+}$(I) and Cu$\text{}^{2+}$(II) were found. Spin-Hamiltonian parameters, direction cosines, and coordination of Cu$\text{}^{2+}$ ion were determined at room temperature. The superhyperfine structure was observed below 250 K as a result of interacting of Cu$\text{}^{2+}$ ion with four equivalent protons (I=1/2). Temperature studies of K$\text{}_{3}$H(SO$\text{}_{4}$)$\text{}_{2}$ crystal show that interbond motion as a precursor of superprotonic phase transition occurs at above≈250 K.
Źródło:
Acta Physica Polonica A; 2003, 104, 6; 549-558
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pretransition Phenomena in Fast-Proton Conductors
Autorzy:
Waplak, S.
Bednarski, W.
Ostrowski, A.
Powiązania:
https://bibliotekanauki.pl/articles/2043554.pdf
Data publikacji:
2005-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
76.30.-v
66.30.-h
Opis:
In this paper we present recent experimental results related to nonlinear crystal field fluctuations and current flow in K$\text{}_{3}$H(SO$\text{}_{4}$)$\text{}_{2}$ fast-proton conductor far below the transition temperature T$\text{}_{g}$. The results for crystalline and powdered samples are quantitatively explained in the framework of soliton model of charge transport.
Źródło:
Acta Physica Polonica A; 2005, 108, 2; 261-270
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetic comparison of Campylobacter jejuni isolated from different cattle farms
Autorzy:
Bednarski, M.
Wieliczko, A.
Mazurkiewicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/31410.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
genetic comparison
Campylobacter jejuni
isolation
cattle
animal farm
genotyping
ERIC-PCR method
Opis:
To compare the genotypes of Campylobacter jejuni, isolates of cattle origin were collected from 9 Polish farms and genotyped by ERIC-PCR. We identified 28 genotypes among the 43 C. jejuni isolates, and demonstrated high genomic diversity. The highest level of diversity was observed in strains isolated from stanchion-barn animals in opposition to those from the loose-housing system.
Źródło:
Polish Journal of Veterinary Sciences; 2011, 14, 2
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microwave X-Band Resonances in Doped Cd₂Nb₂O₇ Monocrystals
Autorzy:
Waplak, S.
Ostrowski, A.
Wencka, M.
Bednarski, W.
Powiązania:
https://bibliotekanauki.pl/articles/1030214.pdf
Data publikacji:
2017-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
76.30.Fc
77.22.Ch
77.80.B-
77.84.Ek
Opis:
Cadmium pyroniobiate (CNO) is the ferroic material with unusual diffuse phase diagram which includes both relaxor and nanocluster domains. We present the data for CNO crystals with several admixtures of paramagnetic ions studied on X and S microwave bands at zero-external magnetic field and classical EPR conditions. Our results lead to an assertion of a ferroelectric resonance effect due to "electronic ferroelectricity". The data fit well to the Falicov-Kimball theoretical model applicable to strongly-correlated-electron or mixed-valence systems.
Źródło:
Acta Physica Polonica A; 2017, 132, 1; 7-11
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Electron Paramagnetic Resonance Study of the [(CH$\text{}_{3}$)$\text{}_{2}$NH$\text{}_{2}$]$\text{}_{5}$Cd$\text{}_{3}$Cl$\text{}_{11}$ Monocrystal Doped with Cu$\text{}^{2+}$ ion
Autorzy:
Ostrowski, A.
Bednarski, W.
Waplak, S.
Czapla, Z.
Powiązania:
https://bibliotekanauki.pl/articles/2030763.pdf
Data publikacji:
2002-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
76.30.-v
05.70.Fh
Opis:
The paper reports the electron paramagnetic resonance investigation of Cu$\text{}^{2+}$ doped [(CH$\text{}_{3}$)$\text{}_{2}$NH$\text{}_{2}$]$\text{}_{5}$Cd$\text{}_{3}$Cl$\text{}_{11}$ (DMACC) monocrystal. DMACC:Cu$\text{}^{2+}$ was studied in the temperature range (6÷293) K. We did not observe any anomalies of spin-Hamiltonian parameters of Cu$\text{}^{2+}$ ion corresponding to the temperature anomalies observed in dielectric studies. The electron paramagnetic resonance anomaly recorded at about 40 K results from the subtle changes in bonds angles and Cu-Cl distances and suggests the smooth second order transition.
Źródło:
Acta Physica Polonica A; 2002, 101, 6; 893-899
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wzbogacanie w oligosacharydy odcieków po ultrafiltracji mleka i ich zastosowanie w produkcji jogurtu
Oligosaccharide-enriched milk permeates after ultrafiltration and their application in the production of yoghurt
Autorzy:
Demczuk, A
Bednarski, W
Kowalewska-Piontas, J
Gorska, J
Powiązania:
https://bibliotekanauki.pl/articles/827041.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Technologów Żywności
Tematy:
ultrafiltracja
przetwory mleczne
oligosacharydy
mleczarstwo
galaktooligosacharydy
probiotyki
prebiotyki
mleko
produkcja
b-galaktozydaza
jogurt
zywnosc prozdrowotna
ultrafiltration
dairy product
oligosaccharide
dairy industry
galactooligosaccharide
prebiotic
probiotic
milk
production
beta-galactosidase
yoghourt
protective food
Opis:
Opracowano warunki hydrolizy laktozy oraz wydajnej syntezy GOS w permeacie po ultrafiltracji mleka z dodatkiem preparatu b-galaktozydazy. Otrzymany koncentrat GOS zastosowano do produkcji jogurtu. Oceniono zależność stopnia hydrolizy laktozy oraz wydajności syntezy galaktooligosacharydów od temperatury i czasu reakcji, obecności lub braku białka w roztworach substratu oraz od wyjściowego stężenia laktozy w roztworach substratu. Korzystną wydajność syntezy galaktooligosacharydów otrzymano w procesie prowadzonym przez 8 h w odcieku nieodbiałczonym, zawierającym 30% laktozy, w temp. 5ºC. Otrzymany koncentrat galaktooligosacharydów zastosowano do uzupełnienia zawartości suchej masy w mleku przeznaczonym do produkcji jogurtów. Stwierdzono, że dodatek koncentratu galaktooligosacharydów wpłynął stymulująco na rozwój bakterii z rodzajów Lactobacillus bulgaricus i Streptococcus thermophilus w jogurcie.
In this paper there are investigated conditions of the lactose hydrolysis and effective synthesis of galactooligosaccharides in permeate after the completed process of milk ultrafiltration with a β -galactosidase preparation added. A galactooligosaccharide concentrate obtained was then used to produce yogurt. It was assessed what impact on the hydrolysis degree of lactose, as well as on the effectiveness of synthesis of galactooligosaccharides had the temperature § time of the reaction, further, the presence/absence of proteins in permeate solutions, and concentration levels of lactose in permeate at the beginning of the process. It was stated that if the process was conducted in an under-proteinized permeate with proteins containing 30% of lactose at 5ºC during a period of 8 hours, the effectiveness of galactooligosaccharides synthesis was satisfactory. The concentrate of galactooligosaccharides was used to enrich dry matter contained in milk destined for the further production of yogurts. It was stated that the addition of galactooligosaccharides stimulated the growth of bacteria belonging to the Lactobacillus bulgaricus and Streptococcus thermophilus species.
Źródło:
Żywność Nauka Technologia Jakość; 2004, 11, 3; 53-62
1425-6959
Pojawia się w:
Żywność Nauka Technologia Jakość
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Winter blood values of selected parameters in a group of non - hibernating captive brown bears (Ursus arctos)
Autorzy:
Sergiel, A.
Bednarski, M.
Maslak, R.
Pasecki, T.
Huber, D.
Powiązania:
https://bibliotekanauki.pl/articles/31191.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
Bears undergo some significant changes reflected in blood values during winter season. The most significant are reduced urea and increased creatinine, by some authors considered to be physiological indicators of hibernation. Studied group of six captive brown bears (Ursus arctos) showed decreased activity in winter but were accepting food and walked outdoors. Blood parameters assessed in February 2011 revealed mean values of leucocytes and neutrophils as significantly lower, and creatinine significantly increased compared to captive and free living bears sampled during other seasons when bears are active.
Źródło:
Polish Journal of Veterinary Sciences; 2015, 18, 4
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of the impact of the hydration degree of bioethanol on the operation parameters of the spark-ignition engine
Autorzy:
Owczuk, M.
Matuszewska, A.
Odziemkowska, M.
Bednarski, M.
Wojs, M. K.
Lasocki, J.
Powiązania:
https://bibliotekanauki.pl/articles/133652.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
bioethanol
water content
spark-ignition engine
engine performance
bioetanol
zawartość wody
silnik o zapłonie iskrowym
osiągi silnika
Opis:
The article presents an overview of methods for the production of bioethanol and the possibility of its use to power internal combustion engines. The effects of supplying spark-ignition engine with bioethanol having various degrees of hydration were examined experimentally on the engine dynamometer. The measurement results were referred to the anhydrous bioethanol, which is used widely as petrol biocomponent and compared in terms of the course of the pressure in the combustion chamber of the engine as well as engine performance parameters – torque and power. It was found that with the decrease in alcohol concentration, the performance of the spark ignition engine deteriorated. The reduction of in-cylinder pressure was proportional to the increase in the water content in the fuel. No significant changes in the general shape of in-cylinder pressure curves were observed. Engine torque and power decreased with an increase in the water content in the fuel, especially at high engine speed. It has been stated that supplying the engine with bioethanol containing up to 6% (v/v) of water does not result in significant losses in engine performance.
Źródło:
Combustion Engines; 2017, 56, 2; 71-75
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Invasiveness of Listeria monocytogenes strains isolated from animals in Poland
Autorzy:
Walecka-Zacharska, E.
Kosek-Paszkowska, K.
Bania, J.
Staroniewicz, Z.
Bednarski, M.
Wieliczko, A.
Powiązania:
https://bibliotekanauki.pl/articles/30672.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
Animals are important reservoir of Listeria monocytogenes, a pathogen causing serious infections in both humans and livestock. However, data on invasiveness of L. monocytogenes strains of animal origin is very scarce. Ability of 18 L. monocytogenes strains of animal origin to invade HT- 9 cells was investigated. Plaque forming assay was used to assess invasiveness and ability of the pathogen to spread in the cell line. Almost 40% of L. monocytogenes strains were weakly invasive. It was shown that strains from serogroup 4b exhibited the highest invasiveness, whereas serogroup 1/2b consisted of strains of invasiveness below 0.0001%. Analysis of translated inlA and inlB gene sequences revealed no premature stop codons. Lineage-specific mutations in low invasive strains were identified within inlA and inlB sequences. Our results demonstrate high incidence of low invasive animal L. Monocytogenes strains, which may be at least partly explained by unique point mutations in the InlA and InlB.
Źródło:
Polish Journal of Veterinary Sciences; 2015, 18, 4
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Problems in fuelling spark ignition engines with dimethyl ether
Autorzy:
Kruczyński, S. W.
Ślęzak, M.
Gis, W.
Orliński, P.
Kulczycki, A.
Dzięgielewski, W.
Bednarski, M.
Powiązania:
https://bibliotekanauki.pl/articles/133662.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
alternative fuels
fuel system
paliwa alternatywne
system paliwowy
Opis:
This paper discusses briefly the production technology of dimethyl ether, taking into account plant raw materials and the physical and chemical properties of DME as compared to diesel fuel. The benefits and disadvantages of DME as a fuel are presented and changes in the emission of harmful substances characterised as compared to the combustion of diesel fuel. Also, basic usage problems are addressed, e.g. the wear of engine’s elements, cavity and leakages in the fuel system.
Źródło:
Combustion Engines; 2017, 56, 3; 154-158
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
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