Growth and Phosphorus Dynamics During Tolypothrix tenuis Cultivation – a Cyanobacterium of Biotechnological Potential
Mušálková, Petra
2024 - English Here I investigated the course of biomass growth, phosphorus uptake and changes in intracellular phosphorus content in T. tenuis in a batch cultivation. Cultivation experiment was held in multiple bubble columns during a light regime (alternating light and dark periods 16 and 8h). Thanks to this experiment I was able to obtain a growth curve of T. tenuis. The decrease of phosphorus concentration in the medium was disproportionally faster\nthan biomass growth resulting in significant oscillations of phosphorus content in the biomass, which are typical characteristics for LPU. It was also observed, that after all phosphorus was removed from the medium, the algae growth continues over time, while obviously utilizing intracellular phosphorus reserves. These findings are valuable in course of using this cyanobacterium for efficient bioremediation of eutrophic water based on phosphorus removal by targeted algae cultivation. Available in a digital repository NRGL Growth and Phosphorus Dynamics During Tolypothrix tenuis Cultivation – a Cyanobacterium of Biotechnological Potential

Here I investigated the course of biomass growth, phosphorus uptake and changes in intracellular phosphorus content in T. tenuis in a batch cultivation. Cultivation experiment was held in multiple ...

Mušálková, Petra
Ústav chemických procesů, 2024

Influence of Material Properties and Mixing Dynamics on Heat Transport in Granular Materials
Kokavcová, Anna
2024 - English This study evaluates the effect of rotational speed on heat transfer and analyzes particle motion at different stirrer rotational frequencies to understand how primary and secondary flows affect heat transfer efficiency. It also examines the effect of Young’s modulus on heat transfer at different agitator\noperating speeds. Key simulation parameters and their influence 33 on heat transfer efficiency are detailed to improve the reproducibility and applicability of the results. Keywords: granular mixing; heat transfer; DEM Available in digital repository of the ASCR Influence of Material Properties and Mixing Dynamics on Heat Transport in Granular Materials

This study evaluates the effect of rotational speed on heat transfer and analyzes particle motion at different stirrer rotational frequencies to understand how primary and secondary flows affect heat ...

Kokavcová, Anna
Ústav chemických procesů, 2024

Review, classification, and evaluation of algorithms for orientation estimation
2024 - Keywords: orientace objektu; techniky AHRS; experiment Available in the ZČU Library. Review, classification, and evaluation of algorithms for orientation estimation

Západočeská univerzita v Plzni, 2024

Impact of the State-of-the-Art Methods on Camera Trap Image Classification
2024 - Keywords: fotopast; nejmodernější metody; BLIP; ChatGPT Available in the ZČU Library. Impact of the State-of-the-Art Methods on Camera Trap Image Classification

Západočeská univerzita v Plzni, 2024

Měření teploty při technické výchově
2024 - V tomto pokusu budeme zkoumat šíření tepla při vrtání. Vyzkoušíme, jak se zahřívají ostré a tupé vrtáky při vrtání ocelové destičky Keywords: vrtání; teplo; experiment Available in the ZČU Library. Měření teploty při technické výchově

V tomto pokusu budeme zkoumat šíření tepla při vrtání. Vyzkoušíme, jak se zahřívají ostré a tupé vrtáky při vrtání ocelové destičky

Západočeská univerzita v Plzni, 2024

Numerical study of the steady airflow in the human respiratory system during inhaling and exhaling
Lancmanová, Anna; Bodnár, Tomáš
2024 - English This paper presents some of the initial results of the numerical simulations of a steady turbulent flow in human upper airways during inhalation and exhalation. The mathematical model is based on the system of Reynolds-Averaged incompressible Navier-Stokes equations complemented by the SST k − ω turbulence model. The simulations were performed using finite-volume open source solver OpenFOAM on a realistic three-dimensional geometry. The main aim of this particular study is to verify the computational setup with special focus on appropriate choice and implementation of boundary conditions. The prescribed boundary conditions are chosen to mimic the physiological conditions during normal breathing cycle. This study aims to gain an insight into the airflow behavior during the inhalation and exhalation process by comparing the results of two distinct simulations corresponding to two different (opposite) flow rates . The obtained local flow rates and flow fields for both cases are presented and mutually compared. This initial work should serve as a foundation for future more complex simulations that will include the time-dependent and compressible effects. Keywords: human airways; incompressible Navier-Stokes; OpenFOAM Available in digital repository of the ASCR Numerical study of the steady airflow in the human respiratory system during inhaling and exhaling

This paper presents some of the initial results of the numerical simulations of a steady turbulent flow in human upper airways during inhalation and exhalation. The mathematical model is based on the ...

Lancmanová, Anna; Bodnár, Tomáš
Matematický ústav, 2024

Assessment of the Presence of Hazardous Components in Textile Waste
Shtukaturova, Anastasia
2024 - English An up-flow percolation test was chosen to identify and characterize heavy metals and PFAS constituents in textile waste. Up-flow column percolation tests are used on a laboratory scale to assess the leaching behavior of a hazardous substance from a waste in a given state as a function of time. The test was performed according to the European Technical Standard CEN/TS 14405. Preliminary results showed the following heavy metals in the leachates Al, As, Co, Cr, Cu, Fe, Mn, Pb, Zn and Sb, with Al, Cr, Fe, Mn and Zn being predominant. Keywords: textile waste; percolation test; PFAS; heavy metals Available in a digital repository NRGL Assessment of the Presence of Hazardous Components in Textile Waste

An up-flow percolation test was chosen to identify and characterize heavy metals and PFAS constituents in textile waste. Up-flow column percolation tests are used on a laboratory scale to assess the ...

Shtukaturova, Anastasia
Ústav chemických procesů, 2024

Drone Based Vertical Profiling of Black Carbon Aerosols at a Rural Background and an Urban Site in Central Europe
Julaha, Kajal
2024 - English This research aims to assess the vertical distribution of BC aerosols using a drone and micro Aethalometer AE51 at two distinct sites in the Czech Republic: 1. NAOK (National Atmospheric Observatory Košetice) representing a regional background, and 2. MFF (Faculty of Mathematics and Physics in Prague) representing an urban site. At NAOK, a 250-meter measurement tower is accessible, providing a means to validate and calibrate the drone measurements. Available in a digital repository NRGL Drone Based Vertical Profiling of Black Carbon Aerosols at a Rural Background and an Urban Site in Central Europe

This research aims to assess the vertical distribution of BC aerosols using a drone and micro Aethalometer AE51 at two distinct sites in the Czech Republic: 1. NAOK (National Atmospheric Observatory ...

Julaha, Kajal
Ústav chemických procesů, 2024

Vertical Gradients of Atmospheric Aerosols Chemical Composition
Kovářík, Jiří
2024 - English Concentration of chemical species chosen as markers for AA source apportionment are evaluated with regard to atmospheric conditions, seasonal and daily cycles and compared between the two heights. This work adds to the current state of general knowledge about AACC. Keywords: vertical gradients; chemical composition; atmospheric aerosols Available in a digital repository NRGL Vertical Gradients of Atmospheric Aerosols Chemical Composition

Concentration of chemical species chosen as markers for AA source apportionment are evaluated with regard to atmospheric conditions, seasonal and daily cycles and compared between the two heights. ...

Kovářík, Jiří
Ústav chemických procesů, 2024

Cultivation of Limnospira Maxima and Utilization of its Fresh Biomass in Human Nutrition
Vásquez, Claudia
2024 - English This project aims to fill this gap by presenting new insights into its consumption as an alternative to dried spirulina and offering recommendations\nfor safe storage. Keywords: Limnospira maxima; dietary supplements; bioengineering Available in a digital repository NRGL Cultivation of Limnospira Maxima and Utilization of its Fresh Biomass in Human Nutrition

This project aims to fill this gap by presenting new insights into its consumption as an alternative to dried spirulina and offering recommendations\nfor safe storage.

Vásquez, Claudia
Ústav chemických procesů, 2024