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PROCESSING OF THE DATA MEASURED WITH CLOUD CONDENSATION NUCLEI COUNTER IN YEAR 2020 FOR SUBMISSION TO EBAS DATABASE
Moravec, Pavel ; Jindra, Tomáš ; Wagner, Zdeněk ; Ždímal, Vladimír
Aerosol particles in the atmosphere that allow water vapor to condense and form cloud droplets are called Cloud Condensation Nuclei (CCN). Elevated concentrations of CCN tend to increase the concentration and decrease the size of cloud droplets. This can lead to suppression of precipitation in shallow and short-lived clouds and to greater convective overturning and more precipitation in deep convective clouds, Rose et al.(2010). The response of cloud properties and precipitation processes to increasing anthropogenic aerosol concentrations represents one of the largest uncertainties in the current understanding of climate change. One of the fundamental challenges is to determine the ability of aerosol particles to act as CCN under relevant atmospheric conditions. Knowledge of the spatial and temporal distribution in the atmosphere is essential to incorporate the effects of CCN into meteorological models of all scales, Huang et al. (2007). Long-term CCN measurements are performed at aerosol monitoring sites such as those forming ACTRIS (Aerosols, Clouds, and Trace Gases Research Infrastructure) network. Measured data are then submitted to the EBAS database, where they are available for the other ACTRIS researchers. In this paper, we present our experience with the processing of the data measured with CCNC for submission to the EBAS database. The data prepared for submission to EBAS from year 2020 are also presented.
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Možnosti zlepšení kvality vody v chovu ryb pomocí plovoucích mokřadů - přehledová studie
JINDRA, Tomáš
The bachelor thesis deals with the technology of floating wetlands, which construction could lead to improvement of water quality in fishponds. The aim of the thesis is to describe existing methods of water purification using wetlands with surface and subsurface water flow (root treatment plants). Further, to describe the method of refining in biological treatment reservoirs. One of the main chapters describes the construction of an artificial floating wetland. The cost / function ratio is often emphasized in their construction. However, it is important to mention that not all materials have a positive effect on water quality such as artificial materials. If possible, natural biodegradable materials that are environmentally friendly and often easier to handle with should be preferred. In addition, they are able to decompose in the environment and this can also save the cost of their disposal. In the thesis, a list of suitable wetland plants is proposed, focusing on species that are capable of growth and survival in our climatic conditions. The choice of species also depends on the type of habitat. Due to the low water transparency in fishponds, emergent and floating plant species, such as common reed (Phragmites australis), reed canary grass (Phalaris arundinacea), cattail (Typha spp.), branched bur-reed (Sparganium erectum) and duckweed (Lemna spp.), could be suitable. Nowadays, fishponds are in unsustainable conditions and water quality may become a limiting factor in fish production in the future. Floating wetlands may play an important role in its improvement.
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Ir.M.A. - Infrared Measurement and Analysis of Accommodation and Vergency
Jindra, Tomáš ; Dušek, Jaroslav (advisor) ; Páta, Petr (referee)
This work is dealing with design of the systém for measuring dynamics of the vergence and accommodation. Vergence accommodation synkinesis is a complex process controlled by various mechanisms in CNS. Deviations from physiological state of the vision process are projected to course of the vergence accommodation curves and is possible the quantitative and qualitative evaluation. For this purpose was designed the measuring system Ir.M.A. (Infrared Measurement of Accommodation). The system uses high-speed videometric device for determination of the relative vergence and relative accomodation of the eyes. Stimulation of the patient's eyes is performed by the standardized jump change of the fixation object distance. The object is reconstruted by holographic method. Measured videosequences are processed by the image analysis. Results of the image analysis are courses of the vergence and accommodation curves depending on time and characteristics of the curves. System is designed for using in clinical practice where it could be used as screening instrument for diagnostics of the oculomotor system disorders.
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Ir.M.A. - Infrared Measurement and Analysis of Accommodation and Vergency
Jindra, Tomáš ; Dušek, Jaroslav (advisor) ; Páta, Petr (referee)
This work is dealing with design of the systém for measuring dynamics of the vergence and accommodation. Vergence accommodation synkinesis is a complex process controlled by various mechanisms in CNS. Deviations from physiological state of the vision process are projected to course of the vergence accommodation curves and is possible the quantitative and qualitative evaluation. For this purpose was designed the measuring system Ir.M.A. (Infrared Measurement of Accommodation). The system uses high-speed videometric device for determination of the relative vergence and relative accomodation of the eyes. Stimulation of the patient's eyes is performed by the standardized jump change of the fixation object distance. The object is reconstruted by holographic method. Measured videosequences are processed by the image analysis. Results of the image analysis are courses of the vergence and accommodation curves depending on time and characteristics of the curves. System is designed for using in clinical practice where it could be used as screening instrument for diagnostics of the oculomotor system disorders.
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Optimization of Routes for Delivery Services Firms
Jindra, Tomáš ; Kučera, Petr (advisor) ; Pavlíčková, Petra (referee)
This bachelor´s thesis deals with the optimization of routes for delivery services firms. The thesis consist of a theoretical and a practical part. The theoretical part explains the concepts of logistics, logistics chain and travelling salesman problem with optimization methods used in the practical part. In the practical part three routes for delivery service firm Zásilkovna.cz are optimized by the nearest neighbour method, Vogel approximation method and savings method. In the end the results are compared in the lenght of routes and financial savings.
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The entry of a Czech company to the foreign markets (ALTA Invest, a.s.)
Jindra, Tomáš ; Sedláček, Jiří (advisor) ; Petříček, Václav (referee)
The thesis analyses the conditions of entry of the company ALTA Invest, a.s. to the Russian market and, using the generalization method, provides insight to Czech companies as to how they themselves can enter foreign markets. In the theoretical part, attention is given to the mapping of institutional support and various forms of entry into foreign markets. In the practical part, the company ALTA Invest, a.s., one of the most important Czech manufacturing engineering companies which are active in the Eastern markets, is characterized and a SWOT analysis of the Russian market is carried out.
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A Survey of Satisfaction among Employeesin of a Health-Care Facility
Jirková, Alžběta ; Mlčák, Jan (advisor) ; Jindra, Tomáš (referee)
The aim of this thesis is analyze employee satisfaction in Jindřichův Hradec Hospital, a.s. by using a questionnaire inquiry. Overall, the thesis is divided into four parts, which are the introduction, theoretical part, practical part and conclusion. The thesis begins with an introduction, which describes the structure of the thesis, the reason for selecting the theme and the treatment process. The theoretical part is divided into five chapters, where is described human resource management in the context of disciplines such as psychology and sociology, also mentions the company culture, motivation, employee evaluation system and possibility research of their satisfaction. The practical part is especially concentrated on the questionnaires evaluation and consists of two chapters. The first chapter is focused on a brief description of the organization, in the second chapter is made the questionnaire evaluation. The conclusion summarizes the conclusions resulting from the questionnaire inquiry and suggested measures. Keywords: job satisfaction, personal work, motivation
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