Current precipitation nowcasting systems primarily use the extrapolation of observed radar reflectivity. I used the extrapolation and studied limits of the forecast using the concept of the decorrelation time (DCT). I used data from two radars covering the territory of the Czech Republic from warm parts of four years and calculated DCT in dependence on several selected conditions describing the state of the atmosphere. I found that the mean DCT for the extrapolation is 45.4 minutes. On average the increase of the DCT in comparison when the persistence forecast is employed is 13.4 minutes. However, in dependence on current conditions the DCT may increase or decrease in more than 40 %. I also explored time evolution of the DCT during two storm events. I found that the DCT may significantly change in time, which is the consequence of changing character of the atmosphere during the storm development.

In the setting of Noetherian or Dedekind domains, we investigate the properties of very flat and contraadjusted modules. These are the modules from the respective classes in the cotorsion pair (VF, CA) generated by the set of all modules of the form R[s−1 ]. Furthermore, we introduce the concept of locally very flat modules and pursue the analogy of their relation to very flat modules and the relation between projective and flat Mittag-Leffler modules. It is shown that for Noetherian domains, the class of all very flat modules is covering, if and only if the class of all locally very flat modules is precovering, if and only if the spectrum of the ring is finite; for domains of cardinality less than 2ω , this is further equivalent to the class of all contraadjusted modules being enveloping.

This work deals kinetics of grinding Portland cement clinker which is influenced by addition of grinding inlays surfactants. In an experiment, attritor-type stirred mill was used and surface active grinding additives such as polyethylenglykol (PEG), triethylamin (TEA) and acetate of ammonium were utilized. Granulometric distribution graph obtained from laser diffraction analysis provides data for plotting development diagrams for milling process.

This project is focused on construction of source of modulation signal for microwave beacon. The output signal is the same as signal, which is generated by PC software WSJT (Weak Signal by Joe Taylor) on PC sound card output. Signal on device output is modulated using by WSJT modulation and its specific JT4 mode. The device output has I and Q components of signal.

The diploma thesis deals with monitoring vertical shifts in the village Tetčice, located at the contact of two geological units in Boskovice furrow. The theoretical part describes the geological structure of the site and the technology high-precision levelling. It also includes measuring and graphic processing, including follow-up on results of previous stages.

Residential arrangement of the Czech Republic is typical by a big number of small municipalities. Those municipalities has the same status as bigger municipalities. However those small municipalities manage with limited resources for their development. Some authors discuss about incapability of small municipalities and the possibility of their integration. This thesis is about the problematics of small municipalities and it focuses on the smallest ones and it shows their activity and capability of existence. key words: small municipalities, very small municipalities, rural

Settlement system of the Czech Republic is typical by a big number of small municipalities. Those municipalities has the same status as bigger municipalities. However those small municipalities manage with limited resources for their development. Some authors discuss about possibility of their integration. This thesis is about the problematics of small municipalities and it focuses on the smallest ones and it shows their activity and capability of existence. key words: development of the municipality, very small municipalities, rural

DIPLOMA THESIS IN THEIR THEORETICAL PART ARE FOCUSE , USE LIGHTWEIGHT AGGREGATES FOR THE PRODUCE OF VERY LIGHTWEIGHT CONCRETE, FOCUSES PRIMARILY ON FOAM GLASS AGGREGATES. THERE ARE ALSO MENTIONED OTHERS LIGHTWEIGHT AGREGATES, WHICH WE ARE USE FOR PRODUCE O VERY LIGHTWEIGHT CONCRETE. THEN THERE ARE RISKS UNITED WITH VERY LIGHTWEIGHT CONCRETE. IN THE PRACTICAL PART IS THE PROPERTY ANALLYSIS OF FOAM GLASS AGGREGATES, DESIGN RECIPE VERY LIGHTWEIGHT CONCRETE AND MONITORED MECHANICAL A THERMAL PROPERTIES OF THESE CONCRETE.

This diploma thesis deals with very low birth weight children in relation to the occurrence of motor problems. The theoretical part provides an overview of knowledge about the low birth children's problems, early postnatal problems and problems from childhood to adulthood in the physical, psychological and pedagogic field. The main part of the theoretical information concerns the occurrence of motor disorders, particularly the developmental dyspraxia and motor disorders about very low birth children. The aim of the practical part of the work was to determine whether low birth weight infants have higher incidence of developmental dyspraxia in comparison with term infants. The research group consisted of 25 low birth weight children, they were examined by Movement Assessment Battery for Children 2 (MABC-2). Children were examinate for posture and postural functions compiled using our protocol. The another aim of the practical part of the work was to determine whether low birht weight children have higher incidence of physical activity in steps by week in comparison with normal birth weight infants. There was significant difference in the incidence of motor disorders between the research group and the control group of 73 normal birth weight children and standard population and the group of late...

Analysis of forest canopy density based on textural features of high resolution imagery and airborne laser scanning data Abstract The objective of this thesis is to assess the forest canopy density in the Šumava Mountains, Czech Republic. The spruce forests in this area have been suffering from the bark beetle outbreak for almost 20 years resulting in a mixture of dead and young trees, mature forest stands and peat bogs. The canopy density was evaluated using a very high spatial resolution panchromatic imagery and low point density LiDAR, combined with an object oriented approach. The classification based on three GLCM texture measures (contrast, entropy and correlation), which were derived from the image objects, resulted in a kappa index of accuracy of 0.45. Adding the information from the LiDAR data, the accuracy of the classification improved up to 0.95.