National Repository of Grey Literature 52 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
Multifunctional altimeter
Lízner, Miroslav ; Neužil,, Tomáš (referee) ; Klusáček, Stanislav (advisor)
This bacheleor thesishis deals with pressure, humidity and teperature sensors to microcontroller connection possibilities. The main goal of this work is to develop the recording touristic altimeter. The hardware solution based on ATmega64 microcontroller and software implementation is described in practical part of this work.
Data Processing from GPS Receiver
Srnec, Pavel ; Orság, Filip (referee) ; Dvořák, Radim (advisor)
This bachelor thesis is about data processing from GPS receiver, specifically about surface maps. In the beginning part, principles of GPS technologies and NMEA protocol are described to understand calculation actual position on the map using geographic coordinates. It analyses communication with GPS receiver, data processing to maps and display position. Concept and implementation of final application, which is proposed as graphical user interface, is descibed. Application has been tested in terrain with GPS receiver u-blox 5 and results behavior application are at the end of bachelor. As a result of the bachelor, executed targets and requierement is summarized and possibilities of uprading project are analysed.
The Peak and the Territory
Mlynarčík, Štefan ; Smetana, Matěj (referee) ; Rathouský, Luděk (advisor)
The thesis is focused on symbolic revision of altitudes and border points of Tatra peaks. The subtle gesture disturbs exact and unambiguous textbook perception of a peak´s height. The thesis is happening on the given summits, the material used on their „growth“ and „transfer“ originates exclusively from immediate surroundings. The period of new summit´s existence is exposed to various weather conditions, eventualy to human factor, thus we can consider it as undetermined in terms of time. The issue consists of 5 video documentations of actions on the given Tatra peaks. The thesis is not exhausted by this. On the contrary, it promises spontaneous long-termed continuation.
Track's Elevation Profile View on a Public GIS
Doubal, Štěpán ; Šilhavá, Jana (referee) ; Fapšo, Michal (advisor)
This bachelor's thesis describes the design and implementation of a user script for GreaseMonkey (plug-in for Firefox). This script adds a functionality to show height profile of a defined route. The route is defined using public GIS tools from www.mapy.cz. The script extracts coordinates from page DOM structure, processes it and draws a height graph. The graph is created using http://www.heywhatsthat.com/profiler.html [2] or www.profile.hy.cz, which provides height graph drawing using www.vyskopis.cz JavaScript API [4].
Vitalita a růst smrku ztepilého ve vertikálním gradientu České republiky
Kovačević, Vuk
Long periods of drought and irregular precipitation are common phenomena in the 21st century, which, along with the management of Norway spruce (Picea abies (L.) Karst.) outside its natural range in Europe, have led to the physiological decline and mortality of entire spruce stands. Drought significantly impacts tree growth and vitality, and these adverse effects are better monitored through tree water deficit (TWD) or water content in the tree. This study focuses on monitoring and analyzing the correlation between radial stem growth and climate changes at altitudes ranging from 380 to 972 meters in the Czech Republic. Growth was monitored using automatic dendrometers for five years (2016–2020). The negative impact of climate changes on radial growth is more significant at lower elevations below 650 meters above sea level, where the highest TWD occurred. This means that managing Norway spruce at lower elevations is risky and requires a change in management practices.
Selected impacts of climate change on birds in European mountains: shifts in altitudinal distribution, population changes and changes in phenology
Mikulcová, Eliška ; Reif, Jiří (advisor) ; Hološková, Adriana (referee)
Many studies focused on the impact of the climate change on organisms including mountain birds. Mountain birds are particularly threatened by the impact of climatic change because they occur in an extreme environment. Climate change impacts mountain birds through increasing temperature, which affects their altitudinal shifts and abundances. These two variables depend also on species-specific traits, distribution area and habitat change. This thesis aims to sort knowledge about impacts of climate change on mountain birds and to explain the variability of altitudinal shifts of these species. Species occupying lower altitudes, open habitat species and short-lived species showed the biggest upward shifts. Downward shifts occurred when the impact of habitat change outweighed the impact of climate change. No significant shifts were recorded in species that respond to climate change by changes in phenology which likely compensate the adverse climate change impacts without the need of translocation. Population trends were usually negative with the steepest declines in high- alpine species, ecological specialists, long-distance migrants and short-lived species. In order to reduce decline in numbers, it is important to set up effective local vegetation management and globally stick to climate targets. Key...
The methods of training in high-altitude conditions
Polívka, Tomáš ; Heller, Jan (advisor) ; Šteffl, Michal (referee)
Title: The Methods Of Training In High-Altitude Conditions Aim: The aim of the study was to summarize published information on the issue of training methods in high mountain conditions and to determine whether the current use of methods can positively affect the performance of athletes. It includes findings from the history and current use of methods to achieve adaptive changes in the body. Methods: The method used in the bachelor thesis was document analysis and electronic database search. Results: We found that high-altitude training in both natural and artificial conditions improves oxygen transfer, red blood cell volume and maximal oxygen consumption VO2max. Thus, it can positively influence the performance of athletes when certain factors associated with hypoxic training are respected. We have also found that there is a considerable amount of scientific literature on the subject, which continues to grow, but the evidence is by no means conclusive. Keywords: Hypoxic training, altitude, performance, adaptation, acclimatization
Floral biology of montane plants and its change with elevation and phenology, effect of pollination stochasticity and other factors on the number of ovules
Nekola, Matyáš ; Sklenář, Petr (advisor) ; Koupilová, Klára (referee)
The number of ovules that each plant produces reflects its ability to adapt. There are several factors that affect ovule production. An important factor is elevation. With the rising elevation also rises the severeness of stochasticity and pollen limitation. Additionally, at the begining of the vegetational season the pollination should be more stochastic and limited. One of the strategies that plants use is called Bet-hedging strategy. Main part of this strategy is the overproduction of the ovules in the ovaries. This above average number of ovules will be used in the case that the flower receives higher than average pollen load. In the end, the plant can compensate for the occasions when the received pollen load is lower. Alpine environment is proposed to have higher pollination stochasticity and pollen limitation. Hence this work is built on the hypothesis that number of ovules will increase with elevation and will be higher at the beginning of the vegetational season in accordance with Bet-hedging strategy. In my diploma thesis I quantified ovule number in 9 species namely Arabidopsis halleri, Calluna vulgaris, Campanula rotundifolia, Melampyrum pratense, Melampyrum sylvaticum, Silene dioica, Silene vulgaris, Trientalis europaea, Vaccinium vitis-idaea, Veronica chamaedrys and Viola lutea subsp....
The effect of altitude on the regeneration in alpine skiing - a review study
Štanglerová, Magdaléna ; Šteffl, Michal (advisor) ; Brtník, Tomáš (referee)
Background Training at high altitude, historically in natural conditions and now in created artificially hypoxic environments, has been used to enhance physical performance in a wide range of endurance sports for many years. For alpine skiing, which takes place naturally at higher altitudes, prolonged exposure to altitude hypoxia and low ambient temperature is specific. However, even here, some effects of this specific load on the athletes are still unclear. Objectives The aim of this thesis is to summarize the results of studies dealing with the topic of hypoxic training in alpine skiers and its effect on selected physiological parameters. Methods The thesis is conducted as a systematic review in accordance with the recommendations of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). Four electronic databases were used to obtain relevant sources - Web of Science (WoS), PubMed, Scopus and SPORTDiscus using the EBSCO database. Results A total of 234 potential publications were retrieved, of which 15 studies including data from a total of 294 probands, mostly elite alpine skiers, were used in the final systematic review. Seven studies used the normobaric hypoxia method and eight studies were conducted under natural conditions. Five studies looked at the acute effect,...
Vliv nadmořské výšky a severní expozice na morfologickou a anatomickou stavbu jehlic smrku ztepilého
Ambrož, Petr
There were chosen three localities even-aged spruce growth from different altitudes and northern exposure at the Jeseníky Mountains. Subsequently, literary review was composed. The introductory part to the bachelor's thesis is mainly focused on the description, ecology and the influence of climatic conditions on growth and assimilation apparatus of Norway spruce in. Later, sun-exposed one-year old shoots were sampled from the selected localities. Needles were taken from the shoots and then used for making the cross-sections. Other needles were taken for needle area and length analysis. Morphological and anatomical analysis was done on the microscopic pictures. Results were processed statistically by program Statistica 12. It was found that with increasing altitude the length and the projection area of needles are decreasing. The predictive maps for some morphological and anatomical parameters were also created by the use of elevations and solar radiation data in ArcGIS.

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