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1
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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Variations in the physical properties of surf generated aerosols with altitude

100%
Zielinski T.
Oceanologia
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2003
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tom 45
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nr 4
Vertical profiles of marine aerosol size distribution and concentration in the marine boundary layer over surf zones depend strongly on wind speed, direction and duration as well as the sea bottom profile. The measurements in the present study were carried out in various seasons of the year with all these factors being taken into consideration. The data with respect to offshore winds were neglected in the calculations, since in such cases the major aerosol contribution was from terrigenous and anthropogenic particles. It was confirmed that in the range of wind speeds from 1 m s−1 to 12 m s−1 there were measurable differences in the concentrations, particularly in the size distribution of marine aerosol particles at two stations differing with respect to their sea bottom profiles.
2
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Preliminary results of lidar based studies of the aerosol vertical distribution in the lower troposphere over urban coastal areas

100%
Halas M., Blaszczak Z., Grabowski J., Papayannis A., Zielinski T.
Oceanologia
|
2004
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tom 46
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nr 3
The paper reports the results of lidar measurements performed in the lower troposphere during several measurement sessions in Athens (Greece) in 2000. For the sake of comparison, results of a similar study performed in Kołobrzeg (Poland) in 2001 are also given. These data indicate that the exhaust gases produced by motor transportation in the cities resulted in the formation of an inversion layer. The rate of convection of the inversion layer depends on the intensity of sunlight, the strength of winds and the morphology of the land. The inversion layer reaches the highest altitudes in the middle of summer, lower in early and late summer and the lowest in autumn. Over the sea the inversion layer altitude extends to several meters, but on moving inland it rises to a fewh undred meters.
3
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
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Determination of specific fuel consumption of IC engine in transient conditions

84%
Grzelka J.
Teka Komisji Motoryzacji i Energetyki Rolnictwa
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2012
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tom 12
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nr 1
4
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Changes in the chemical properties of water in a small pond in vertical profiles

84%
Szyperek U.
Journal of Elementology
|
2007
|
tom 12
|
nr 4
363-373
The study to determine thermal-oxygen changes and chemical properties of water in a flow-through pond was conducted between April 2004 and March 2005 in three vertical profiles. The study involved the determination of electrolytic conductivity and pH reaction of water as well as the content of nitrate nitrogen and ammonium nitrogen, total phosphorus and sulphates. Thermal stratification was not observed in the investigated pond with the maximum depth of 2.45 m, and oxygen content was represented by a clinograde curve. Biogenic element concentrations in the pond were determined by depth in the vertical profile, and they were subject to seasonal variation. The highest concentrations of mineral substances in water were reported in the bottom layers of the pond. Although the investigated pond is a flow-through water body, it accumulates biogenic elements.
5

Abundance and production of bacteria in a marine beach [Southern Baltic Sea]

67%
Podgorska B., Mudryk Z. J., Skorczewski P.
Polish Journal of Ecology
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2008
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tom 56
|
nr 3
405-414
The paper presents the results of the study of abundance, biomass, mean cell volume and secondary production of bacteria inhabiting a marine-bay sandy beach, at southern Baltic Sea coast (Sopot) in summer season. The differences of bacteriological parameters among sites across beach horizontal profile were determined. Maximal value of the total bacteria numbers (8.59 ± 0.73 × 10⁷ cells g⁻¹ dw), biomass (15.2 ± 4.4 μg C g⁻¹ dw) and cell volume of bacterium (0.056 ± 0.011 μm³) was noted at the waterline and bacterial secondary production was highest in the dune (172.3 ± 86.6 μg C g⁻¹ dw d⁻¹) and at the waterline (119.9 ± 40.5 μg C g ⁻¹ dw d⁻¹). Marked differences in the level of bacteriological parameters between surface and subsurface sand layers were estimated. In the sea, at the waterline and in the middle of the beach higher numbers of bacteria, their biomass and secondary production were found in the surface (0–1 cm) than in the subsurface (5–10 cm) sand layers. A reverse situation was observed in the dune.
6

Relationships between the tectonic structure and the coal quality field in the Upper Silesian Coal Basin

67%
Jura D., Trzepierczynski J.
Prace Naukowe Uniwersytetu Śląskiego w Katowicach
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1996
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nr 1602
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