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Navigation systems
Jirkovská, Šárka ; Stejskal, Vojtěch (referee) ; Pust, Radim (advisor)
This bachelor´s thesis is focused on the navigation systems GPS, Galileo and their development. The work describes the functions and parameters of mentioned navigation systems including individual modulation techniques, used frequencies and signal securing by encoding. Segments of navigation systems GPS and Galileo, which divide into control and space parts, are mentioned next. The principle of signals generation by GPS system satellites, where the navigation message is the basis of user´s data transfer, is introduced. The principle of generation of the navigation message is described as well as its structure and characteristics of used CA-code and P-code. Next part of the work presents the components of the Galileo navigation system satellites and conspectus of planned services of this system. The summary of used receivers’ characteristics and summary of selected producers of digital geographical data for navigation devices follow next. The last part mentions the simulation of signal generation of GPS satellite. The simulation includes encoding and decoding of navigation message. This simulation is created in Matlab version 7.4 environment.
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Detached house with design office
Stejskal, Vojtěch ; Jelínek, Petr (referee) ; Utíkalová, Ivana (advisor)
This project designs a new building of a family house with a design‘s office. The building is single-storey with a residential loft, without a basement. Part of the ground floor is an establishment (office), the rest of the house has residential function. The house has also a garage. It is a brick building (POROTHERM system) with a gable roof; the garage has a flat roof.
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Application of gel baits for control of pest cockroaches
Aulický, Radek ; Stejskal, Václav
The certified technological procedure was developed in order to support Czech national legislation 258/2000. The procedure is aimed at the control of pest cockroaches in agricultural and food industry premises using insecticide gel baits. The technological procedure contains new and original information on gel bait efficacy and instructions on their application under various environmental circumstances.
Fulltext:  PDF
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Low-labour demanding technological procedure of monitoring of stored product beetles using traps with multi-component attractant
Stejskal, Václav ; Aulický, Radek
The aim of the work was to provide pest control, agricultural and food industry practice with information about multi-component monitoring tool for stored product pest beetles. It was evaluated the laboratory efficacy of a new trap „Multi-Insect-Trap“, containing combined pheromone and food attractant for several storage pests species. In small arenas (exposure: 74 hours, 25oC) was tested 6 species of stored product beetles. The efficacy decreased in the following order: Cryptolestes ferrugineus – 100%, Lasioderma serricorne – 100%, Oryzaephilus surinamensis - 70%, Stegobium paniceum - 70%, Sitophilus granarius – 60% and Tribolium castaneum- 40%. The work was supported by projects of Czech ministry of agriculture NAZV QH91146 and Vyzkumný zamer 0002700604.
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Certified technological procedure: antiresistant strategy for standard and spot phosphine fumigation of beetles infesting stored grain
Aulický, Radek ; Stejskal, Václav
Currently there is growing evidence on failures of many pesticides on stored product pests including toxic insecticide fumigants. The increasing resistance is frequently a result of suboptimal use in terms of good agricultural and technological practice during fumigations. The technological procedure contains set of practical instructions on PH3 treatment of grain stored in flat grain stores leading to decrease of risk of resistance evolution. Notably, the technological procedure contains new and original information and risk evaluation on PH3 “spot. fumigation” of grain i flats stores; It shows the spatial zone of efficacy and limits for usage of this method.
Fulltext: PDF
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Singular cases of the planar parallel robot
Belda, Květoslav ; Stejskal, V.
Singular cases - singularities of the robot are defined as positions in which the robot loses kinematic definiteness. The loss appears in both direct and inverse kinematic transformation. Existence of the singularities in the robot workspace causes sharp changes in profiles of the velocities and accelerations and changes in force effects. The objective of this paper is to investigate singularities (singular positions) of one parallel robot structure and to simply classify such singular cases.
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