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Drive assistant
Trýska, Tomáš ; Bajer, Arnošt (referee) ; Pavlík, Michal (advisor)
The drive assistant is a device designed for application in sportscars not provided with a sufficient amount of gauges showing the state of engine and drivetrain. These gauges usually show pressures, temperatures, voltage, and other quantities. The values are shown on a graphic display as two analog indicators. The states are selected using a touch panel. The device is equipped with four ultrasonic detectors, which are used for parking assist and warning against collision with a vehicle in blind angle.
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Microposition control device
Kokeš, Ondřej ; Bajer, Arnošt (referee) ; Kadlec, Jaroslav (advisor)
Presented thesis analyses a function of the particular type of the nanopositioner with aim to suggest and construct an electronic device suitable for control of the nanopositioner slider. In presented material there is a description of the control signals and possibility of their generating in the respect of slider movement accuracy. The main goal of the thesis is to describe electronic units ranging from power supply, control processor unit part to end part that directly joint nanopositioner. There is also programme equipment for microcontroller and computer, communication description, movement measuring and calibration and draft for the close-up of the control loop for additional increase of the movement accuracy.
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Design of audio frequency amplifier for PC sound card
Chalupa, Petr ; Bajer, Arnošt (referee) ; Musil, Vladislav (advisor)
This work deals with the problems of low frequency amplifiers that are specialised in processing an analog music signal, that is get from output element of an sound card of an computer. A part of my work is a design of an amplifier, an design verification by calculations and simulations and subsequent production of amplifier. The end of my work is specialised in measurement parametres of amplifier and comparing them with german norm DIN 45 500.
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Risk Assessment on Geodiversity Sites
Kubalíková, Lucie ; Nováková, Eva ; Kuda, František ; Kirchner, Karel ; Bajer, A. ; Balková, M.
Geoconservation is an action of conserving and enhancing geological, geomorphological, hydrological and soil features and processes. Particular geoconservation measures are very often applied on the site-level to protect important geodiversity sites. Nevertheless, despite established legal protection and related geoconservation activities, threats to geodiversity sites related to the multiple use and human society demands can arise and reaching a compromise can be difficult. In this contribution, a two-level threat assessment is applied and discussed. The first level of threat assessment is based on the already used criteria within geosite/geomorphosite concept. The second level of threat assessment is represented by Risk Assessment Matrix, which may be considered a useful tool providing a complex view on the threats to geodiversity sites. The methods are applied on two different sites and their advantages and limits are discussed. Based on the assessment, specific management proposals may be implemented in order to balance conservation needs and demands resulting from human activities related to the sites.
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Dendrochronology improves understanding of the charcoal production history, increasing the tourist potential in the Drahany Highlands
Rybníček, Michal ; Bajer, A. ; Friedl, M. ; Knott, R. ; Kočár, Petr ; Kučera, A. ; Novák, J. ; Vavrčík, H. ; Kolář, Tomáš
Over the last two years, three selected forest sites from Drahany Highlands were examined for traces of human activity. The most frequent traces found, and common to all three sites, were remains of charcoal production. This paper provides an anatomical and dendrochronological analysis of the charcoals found in two charcoal pile remains from each site. The species composition of the charcoals at the southern site was dominated by oak, followed by birch and hornbeam. Fir was more common than oak, beech, poplar, birch and hornbeam at the central site. Fir and beech were found at the northern site. By using dendrochronology, 23 fir, oak and beech charcoals were dated with the oldest sample coming from a central site and dated from the period 1753–1758. Charcoals from the three other charcoal piles fell into the first half of the 19th century. Radiocarbon dating of charcoals selected gave a very wide age range (1640–1955), except for one case (1399–1435). Providing information on the age of a charcoal pile can help raise public awareness and interest in viewing the sites where charcoal burners used to be active in the forests.
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Heritage conservation of the remains of human activity in the forest
Sklenář, Karel ; Novák, Jakub ; Kadavý, Jan ; Mikita, Tomáš ; Rybníček, Michal ; Bajer, Aleš ; Kučera, Aleš ; Kolář, Tomáš ; Friedl, Michal
The main objectives of the methodology include: 1. setting the issue in the legislative environment; 2. introducing the processes of disturbance of objects in the forest environment; 3. characterization of modern methods of identification of objects in forests; 4. introducing the practical procedure of identification of objects of human activities in forests; 5. proposing procedures for ensuring the preservation and presentation of anthropogenic remains of human activities in forests for state administration and local government. The methodology was developed in cooperation between experts in the humanities and natural sciences. It seeks to apply and combine procedures of different disciplines. The methodology is recommended to be used with methodology Methods and procedures for the protection of anthropogenic objects of historical human economic activity in forests (Kadavý et al. 2022). The two methodologies are complementary to each other.
Fulltext:  PDF
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Geological paths – their use for the regional geography teaching
Kubalíková, Lucie ; Drápela, E. ; Bajer, A. ; Zapletalová, D. ; Balková, M. ; Zágoršek, K. ; Kirchner, Karel ; Kuda, František ; Roštínský, Pavel
Geological paths (geopaths, geotrails) represent a type of educational paths that connect sites, which are interesting from the Earth-sciences point of view. These sites (e.g. outcrops, old quarries, historical buildings built of local stone or viewpoints) often represent the links between geodiversity and other phenomena within a region (which is in accordance with a holistic approach to geotourism). Thus, they can give complex information not only about the abiotic nature but also about biodiversity, history or culture of the region, usually through narrative. Suitable interpretation of geodiversity and its relationships to the biodiversity and cultural heritage allows to identify regional specifics, it helps to find the mutual connections between particular phenomena within the region and it supports the holistic perception of a given region. The contribution presents an example from the Brno city where the urban geopath can be used for teaching regional geography of Brno and its surroundings.
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Developing urban geotourism in Brno (Czech Republic)
Kubalíková, Lucie ; Kirchner, Karel ; Bajer, A. ; Balková, M. ; Kuda, František
The term “urban geotourism” is defined as tourism based on the places within the city boundary (both in the form of built heritage - monuments, buildings, statues - and rock outcrops) that is related to geological concepts and features. As a first step for the development of urban geotourism it is necessary to identify and inventory the geotourist resources, which should take into account both natural (geological, geomorphological, hydrological or palaeontological, and ecological aspects related to geodiversity), and cultural aspects related to geodiversity (e.g. monuments, building stone, geo-toponyms, anthropogenic landforms). Based on the classification of geotourist sites, selected examples from Brno (Czech Republic) are given, supplemented by geotourist and geo-educational activities. In the conclusion, the advantages of urban geotourism are summarized and its importance for the protection of abiotic nature and sustainable management of valuable sites is suggested.\n\n
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The optimization of forest management strategies on slopes affected by landslides and rock falling – a methodology for forest-planting practices
Bajer, A. ; Balková, M. ; Buček, A. ; Divíšek, Jan ; Friedl, M. ; Halas, Petr ; Kirchner, Karel ; Kuda, František ; Lacina, Jan ; Martiník, A. ; Roštínský, Pavel ; Simon, J. ; Vavříček, D.
Landslides, as well as rock falling, are among natural disturbances, the origin of which the forest management has only a secondary influence. On the other hand, adequate management can reduce the risk of landslides (rock falling). In some specific cases, it can be expected that this management can also prevent origin of landslides. The basic recommendation in the area of forest cultivation in areas affected by landslides is the creation of forest stands of species, age and thickness (height) differentiated, with a small-scale texture. In some cases it is also possible to recommend the shape of the associated forest. Consistent management of the forest transport network must be an integral part of measures in risk areas.
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