|
| |
|
|
Bedload transport in Polar gravel-bed rivers
Ondráčková, Lenka
The thesis deals with the transport of sediments in gravel streams in Polar regions. The study of bedload sediments, the transport and changes in their grain size and shape characteristics has a long history, but only recently have they been studied in proglacial rivers of high latitudes. The assigned work aims to study and compare the behaviour of braided gravel-bed rivers and to develop appropriate methods of study and data collection in the Polar regions. Three catchments of proglacial braided gravel-bed streams were selected for the research. Two river catchments are located on the Svalbard archipelago in northern Billefjorden and one river catchment is located on James Ross Island in Antarctica. These catchments of gravel-bed streams are located in the forefield of glaciers, which has been studied since 2016 during the research expeditions. The Munin River catchment on Svalbard was selected due to the morphology of the whole river catchment, the presence of active sediment sources and the well-developed river bed. The second catchment of the Keller River on James Ross Island was selected as a suitable example for assessing the impact of connectivity in the catchment area on sediment transport. The third catchment of the Hørbye River on Svalbard is characterized by gravel sediments in front of...
|
|
|
Možnosti využití druhu Physalis philadelphica Lam.
Ondráčková, Lenka
Physalis philadelphica Lam. is an interesting vegetable. Its comes from Central America. Mexico is an important grower and producer of fresh and preserved forms of fruit. A typical feature for Physalis philadelphica Lam. is the calyx that surrounds the fruit. This calyx bursts in the ripening of the fruit, which also has an aestethic effect. In Czech Republic, it is not grown in large number. It’s for many people unknown vegetables. Claims for cultivation are not high. It needs sun, warmth, good watering and space. Fresh seeds are also important. In our environment is a one-year plant. It has no proven therapeutic effect. Its advantage is the variety in the kitchen. A fruit, rarely a calyx, is used. It was done in three locations. It was attended by 30 respondents. Five samples were available. The specimens were fresh fruit pulp and food made from them. On the basis of the tasting, the numerical figure revealed interest in jam and salsa verde. The unconventional taste and variety of fruit processing has been recognized.
|
|
|
Optimalizace osevního plánu v zemědělském podniku Rakovec a.s.
Ondráčková, Lenka
This diploma thesis deals with finding the optimal structure of plant producti-on in agriculture company Rakovec, a. s. The thesis consists of two main parts. The theoretical part describes the operations research includes linear programming and in the practical part there is optimized concrete crop rotation with the assistance of MS Excel programme. In conclusion are contained relevant recommendations.
|
|
| |
|
| |
guest ::
RSS feed.