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Tytuł:
Submultiplicative properties of the $φ_{K}$-distortion function
Autorzy:
-L. Qiu, S.
Vuorinen, M.
Powiązania:
https://bibliotekanauki.pl/articles/1288048.pdf
Data publikacji:
1996
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Opis:
Some inequalities related to the submultiplicative properties of the distortion function $φ_K(r)$ are derived.
Źródło:
Studia Mathematica; 1995-1996, 117, 3; 225-242
0039-3223
Pojawia się w:
Studia Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Żydzi, konwertyci, nowi chrześcijanie, marrani – dylematy wiary, tożsamości i egzystencji społeczności żydowskiej w Portugalii po przymusowej konwersji w 1497 roku
Autorzy:
a, Dominika O l i w
Powiązania:
https://bibliotekanauki.pl/articles/708140.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Źródło:
Studia Historyczne; 2012, 3
0025-1429
Pojawia się w:
Studia Historyczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Observed and modelled solar radiation components in sugarcane crop grown under tropical conditions
Autorzy:
A. dos Santos, Marcos
L. de Souza, José
B. Lyra, Gustavo
Teodoro, Iêdo
A. Ferreira Junior, Ricardo
C. dos Santos Almeida, Alexsandro
B. Lyra, Guilherme
C. de Souza, Renan
A. Maringolo Lemes, Marco
Powiązania:
https://bibliotekanauki.pl/articles/972744.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
sugarcane
albedo
net radiation
Opis:
The net radiation over vegetated surfaces is one of the major input variables in many models of soil evaporation, evapotranspiration as well as leaf wetness duration. In the literature there are relatively few studies on net radiation over sugarcane crop in tropical climates. The main objective of the present study was to assess the solar radiation components measured and modelled for two crop stages of a sugarcane crop in the region of Rio Largo, Alagoas, North-eastern Brazil. The measurements of the radiation components were made with a net radiometer during the dry and rainy seasons and two models were used to estimate net radiation: the Ortega-Farias model and the Monteith and Unsworth model. The highest values of net radiation were observed at the crop development stage, due mainly to the high indices of incoming solar radiation. The daily average albedos of sugarcane at the crop development and mid-season stages were 0.16 and 0.20, respectively. Both models showed a better fit for the crop development stage than for the mid-season stage. When they were inter-compared, Monteith and Unsworth model was more efficient than Ortega-Farias model, despite the dispersion of their simulated radiation components which was similar.
Źródło:
International Agrophysics; 2017, 31, 2
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Depressive episodes and depressive tendencies among a sample of adults in Kielce, south-eastern Poland
Autorzy:
Aaro, L.E.
Herbec, A.
Bjorngaard, J.H.
Manczuk, M.
Zatonski, W.A.
Powiązania:
https://bibliotekanauki.pl/articles/51028.pdf
Data publikacji:
2011
Wydawca:
Instytut Medycyny Wsi
Tematy:
human disease
depressive episode
depressive tendency
adult
Kielce town
Polska
urban population
rural population
Źródło:
Annals of Agricultural and Environmental Medicine; 2011, 18, 2
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Inhomogeneous Magnetic Field Penetration in Superconducting Niobium Films
Autorzy:
Abal'osheva, I.
Abal'oshev, A.
Cieplak, M.
Zhu, L.
Chien, C.
Powiązania:
https://bibliotekanauki.pl/articles/1537190.pdf
Data publikacji:
2010-08
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
74.25.Ha
74.25.Uv
74.70.Ad
Opis:
The peculiarities of magnetic field penetration in the form of fingering or dendritic instabilities are studied by magneto-optical technique in the niobium films of different thickness. It is observed that the reduction of Nb film thickness reduces the threshold field for instabilities, in agreement with the theoretical predictions. In addition, it is shown that the silver overlayer deposited on the top of Nb film leads also to the enhancement of instabilities, in marked contrast to the effect of gold or aluminum overlayers, which are known to suppress instabilities.
Źródło:
Acta Physica Polonica A; 2010, 118, 2; 396-398
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fretting wear analysis of different tube materials used in heat exchanger tube bundle
Autorzy:
Abbas, T.
Khushnood, S.
Nizam, L. A.
Usman, M.
Powiązania:
https://bibliotekanauki.pl/articles/957958.pdf
Data publikacji:
2017
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
fretting wear
flow-induced vibration
flexible tube
cross flow velocity
Opis:
Research on heat exchange has been carried out for more than five decades because of its importance in process industries and power generation plants. Heat exchanger experiencing cross flow are vulnerable to flow-induced vibration. This vibration causes the interaction of tubes with the baffle resulting in a fretting wear of the tubes. The present study focuses on fretting wear analysis of different tube materials. Fretting wear tests were performed on aluminum, copper and stainless steel instrumented central tubes against mild steel baffle. For each tube material the tests were performed for three different test durations i.e. 60 minutes, 120 minutes and 180 minutes at a cross flow velocity of 0.55 m/s. It was observed that vibrational amplitude of the flexible test tube is affected by its weight. A scanning electron microscope was used to analyze and measure the sizes of wear scar. The results indicated that wear loss in case of aluminum tube is the highest while that in case of stainless steel tube is the lowest.
Źródło:
Advances in Science and Technology. Research Journal; 2017, 11, 4; 123-133
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł

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