Full-text resources of PSJD and other databases are now available in the new Library of Science.
Visit https://bibliotekanauki.pl
Preferences help
Polish version English version Language
enabled [disable] Abstract
Number of results

Results found: 3

Number of results on page
first rewind previous Page / 1 next fast forward last

Search results

help Sort By:

help Limit search:
first rewind previous Page / 1 next fast forward last
1

Microphytobenthos of the shallow littoral of the Southern Baltic

100%
Plinski M., Kwiatkowski J.
Oceanological Studies
|
1996
|
vol. 25
|
issue 4
65-79
EN
The microphytobenthos is the ecological fraction of small plant organisms found in sediments. Hitherto only a few investigations into the microphytobenthos in the southern Baltic have been carried out. The objective of the present study was to determine the species com-position and relative abundance of epipsammic taxa in the shallow littoral zone in the southern Baltic as well as the seasonal fluctuations at selected stations in the Gulf of Gda?sk. The results indicate that three regions of the Polish coastline can be distinguished with respect to the spe-cies composition of microphytobenthic diatoms. The distribution of diatom species is probably related to the environmental conditions occurring in particular regions of the Polish coastline. The percentage of certain diatom species tends to follow a clear seasonal pattern.
2
Content available remote

Time Dependent Tunneling in Double-Barrier ZnSe/ZnTe Structures

81%
Bała P., Kwiatkowski J., Bała W.
Acta Physica Polonica A
|
1992
|
vol. 82
|
issue 4
649-652
EN
The wave-packet time dependent quantum mechanics is used to calculate tunneling probability through a double-barrier ZnSe/ZnTe structure. The time dependent I-V characteristics are obtained for several structures. The resonant peaks are observed and their changes with the barrier parameters are monitored.
3

The eutrophication model of the Vistula Lagoon

81%
Kwiatkowski J., Koch_Rasmussen E., Ezhova E., Chubarenko B.
Oceanological Studies
|
1997
|
vol. 26
|
issue 1
5-33
EN
The Vistula Lagoon is a shallow coastal ecosystem located on the Polish-Russian border in the coastal area of the southern Baltic. It is strongly influenced by inflows of seawater from the Baltic as well as by river inflow from the catchment area. High concentrations of nutrients in the Lagoon cause high primary production rates (ca 190 gC/m2/year) and other processes related to eutrophi-cation. Mathematical modelling of the physical and biogeochemical processes in the Vistula Lagoon has been applied as a tool for environmental assessment. The integrated MIKE 21 two-dimensional modelling system (by the Danish Hydraulic Institute / Water Quality Institute) was applied in the study. The eutrophication model of the Vistula Lagoon describes the nutrient cycle including eutro-phication-related processes. This paper describes the setup and calibration of the eutrophication model and presents the results of the basic calculation reflecting the situation in 1994. The role of the model in the evaluation of the ecological situation and in water management and planning is discussed. The model has been calibrated against monitoring measurements carried out in the Polish and Russian parts of the Vistula Lagoon.
first rewind previous Page / 1 next fast forward last
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.