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PEARL Ústí nad Orlicí
Tomková, Iva ; Glosová,, Dagmar (referee) ; Nový, Alois (advisor)
The object of the study is urban planning - architectural design strategy of conversion and revitalization of the factory PEARL 01 in Usti nad Orlici. The area of the site is about 3 hectares, an area eight times larger than the actual main square in the town. Most of the land is owned by the city. Current status of the area does not match the aesthetic or functional demands placed on this space, which is intended for expansion of the city center, whose current capacity does not match the needs of even the size of the city. Textile industry and Perla itself played an important role in the history of the region and influenced the lives of most local citizens. Therefore, the proposal seeks to retain as much of the original structure as possivle and with them the charm and spirit of the original factory and its buildings. The area is cleaned up, breathes and becomes in the first time in history a part of the urban space, and not a big barrier in its center.
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Extension FA Ljubljana
Tomková, Iva ; Marek, Jiří (referee) ; Šindlar, Jiljí (advisor)
The old building of the Faculty of Architecture has inconvenient spaces on the back - south- facade on both sides of the staircase . These two parts were added in later times, in the second half of the 20th century. Into the height of the old building, with high ceilings was crammed twice the number of floors. This resulted in a complicated tangle of small spaces, stairs etc. Headroom is not in allowed limit everywhere. The proposal is based on replacing these two parts with completely new design / independent of old building/. There were several initial basic options and requirements. It is a steel structure in the module 2,9 x 2,9 meters. The volume increases to width with increasing height. It does not occupy a place for access on the ground and at the same time it creates shelter for parked bicycles. In floor plans the new building is divided into two parts. One of the offices, which all have the same ceiling height – 2,9 meters. The remaining part is the so-called multifunctional semi-public, serving to relax, work, presentations, waiting for consultations, ... Each array of module is placed in different height, they're making different levels and different optically connected spaces. Movement through these levels is spiraling and is achieved to entrance from all the existing floor's levels in the old building. The steel bearing structure is fitted with translucent glass. Due to it new spaces are very light and emotionally larger. New volumes are lightweight, transparent and you can see an old original facade through them. Number of office's working places compared to the original number 36 raised to 40 chairs. On the ground floor have been newly designed toilets that are missing and number of booths was expanded to each floor.
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Dynamics of organic carbon in the ponds ecosystems
TOMKOVÁ, Iva
Ponds ecosystems are the most common type of lentic waterbodies in Czech Republic. In the last century, the quality of ponds water has been greatly influenced by intensive management in the catchment and ponds alone. As a result of the increasing concentration of nutrients, ponds lead to eutrophication. This is expressed as extensive primary production of phytoplankton and algal blooms. Decomposition of the accumulated organic matter affects the oxygen regime, pH and distribution of nutrients in the pond. Organic matter plays a key role in physical, chemical and biological processes in the ecosystem. The aim of the work was to describe the dynamics of organic carbon in the eutrophic ponds ecosystem with emphasis on its dissolved part (DOC). This study included evaluation of DOC concentration from 6 pond systems in the Třeboň region from 2010 to 2011 and a comparison with DOC concentrations from 2020. The relationship of DOC concentration to other chemical parameters of water was evaluated. It found that DOC concentration had no significant correlation with other parameters. The concentration of nutrients TN and TP had decreased over the last 10 years, while DOC concentration had increased. More detailed data from 5 ponds from 2008 to 2011 were evaluated in the same way. Optical methods such as absorbance and fluorescence were used to describe DOC dynamics. These methods were used to monitor 10 ponds from Třeboň and České Budějovice regions in 2017?2018. Data were compared between these regions because they differed in conductivity, but it had no differences in DOC concentration and other chemical parameters. The average value of DOC concentration was 14,8 mg l-1. The absorption characteristics of DOM such as spectral slope S275-295 and slope ratio SR suggested an autochthonous source of DOM. Specific absorbance values at 254 nm SUVA254 ranged from 1,4?3,0 l mgC-1 m-1 and indicates autochthonous substances with lower molecular weight and lower content of aromatics. SUVA254 values were higher in the Třeboň region, which indicates that there was a more allochthonous DOM with higher molecular weight and more aromatics in DOM in contrast to the České Budějovice region. Evaluation of seasonal changes in the composition of DOM using optical methods revealed that in the summer there were more autochthonous substances with lower molecular weight and lower aromatics DOM. SR values were negatively correlated to molecular weight and were higher in summer. FI and BIX values indicating autochthonous and microbial source DOM increased in summer. Optical methods were used for the first time to monitor the dynamics of organic matter in ponds.
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Sedlice Reservoir – coagulation experiments of sediment samples
Borovec, Jakub ; Jan, Jiří ; Tomková, Iva
The study was conducted on the basis of a contract between the Vltava River, State Enterprise and the Biology Centre CAS. The subject of the study comprised of sediment sampling from Sedlice Reservoir (Czech Republic) and coagulation experiments on these samples in order to find optimum conditions for dredged sediment dewatering using geotextile tubes and flow centrifuges. Results will serve to find optimum coagulation conditions to ensure maximum purification of the effluent from nutrients or contaminants during the process of sediment dewatering.
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Effect of terminal electron acceptors on biogeochemical processess and phosphorus cycle in sediment
Jan, Jiří ; Borovec, Jakub ; Petráš, D. ; Osafo, Nana O. A. ; Tomková, Iva ; Hubáček, Tomáš
This study focuses on the phosphorus (P) release from sediment of inflow part of Vranov reservoir under different availability of terminal electron acceptors, mainly dissolved O2 and NO3-. To understand the cycling of P in sediments, sediment cores were incubated for five weeks in three parallel variations that simulated: i) anoxia with depleted NO3-, ii) O2 saturated water column and iii) O2 saturated water column in the presence of high concentrations of NO3-. Evaluating the release of P and the impact of Iron (Fe) and its metabolism in sediment under the different conditions, water above the sediments was monitored, porewater composition and different P fractions in the sediment were analyzed.
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PEARL Ústí nad Orlicí
Tomková, Iva ; Glosová,, Dagmar (referee) ; Nový, Alois (advisor)
The object of the study is urban planning - architectural design strategy of conversion and revitalization of the factory PEARL 01 in Usti nad Orlici. The area of the site is about 3 hectares, an area eight times larger than the actual main square in the town. Most of the land is owned by the city. Current status of the area does not match the aesthetic or functional demands placed on this space, which is intended for expansion of the city center, whose current capacity does not match the needs of even the size of the city. Textile industry and Perla itself played an important role in the history of the region and influenced the lives of most local citizens. Therefore, the proposal seeks to retain as much of the original structure as possivle and with them the charm and spirit of the original factory and its buildings. The area is cleaned up, breathes and becomes in the first time in history a part of the urban space, and not a big barrier in its center.
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Extension FA Ljubljana
Tomková, Iva ; Marek, Jiří (referee) ; Šindlar, Jiljí (advisor)
The old building of the Faculty of Architecture has inconvenient spaces on the back - south- facade on both sides of the staircase . These two parts were added in later times, in the second half of the 20th century. Into the height of the old building, with high ceilings was crammed twice the number of floors. This resulted in a complicated tangle of small spaces, stairs etc. Headroom is not in allowed limit everywhere. The proposal is based on replacing these two parts with completely new design / independent of old building/. There were several initial basic options and requirements. It is a steel structure in the module 2,9 x 2,9 meters. The volume increases to width with increasing height. It does not occupy a place for access on the ground and at the same time it creates shelter for parked bicycles. In floor plans the new building is divided into two parts. One of the offices, which all have the same ceiling height – 2,9 meters. The remaining part is the so-called multifunctional semi-public, serving to relax, work, presentations, waiting for consultations, ... Each array of module is placed in different height, they're making different levels and different optically connected spaces. Movement through these levels is spiraling and is achieved to entrance from all the existing floor's levels in the old building. The steel bearing structure is fitted with translucent glass. Due to it new spaces are very light and emotionally larger. New volumes are lightweight, transparent and you can see an old original facade through them. Number of office's working places compared to the original number 36 raised to 40 chairs. On the ground floor have been newly designed toilets that are missing and number of booths was expanded to each floor.
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