National Repository of Grey Literature 16 records found  1 - 10next  jump to record: Search took 0.01 seconds. 
Use of energy assessment for the design of the building with almost zero energy consumption
Horák, Jakub ; Počinková, Marcela (referee) ; Horák, Petr (advisor)
The diploma thesis deals with the design of nearly zero energy buildings. It focuses primarily on optimizing the thermal insulation thickness at a cost-optimal level. Based on energy consumption analysis, three heat sources are selected and then evaluated using an energy assessment. The building is evaluated in terms of energy, economic and environmental.
Generation of nanoparticles by electrical discharge in liquids
Čechová, Ludmila ; Horák, Jakub (referee) ; Kozáková, Zdenka (advisor)
This thesis focuses on the process of nanoparticle generation by electric discharge in liquids. The theoretical part is focused on generation of electric discharge in liquids, various methods of preparation of nanoparticles, including plasmachemical methods and methods of nanoparticle characterization. The experimental part deals with the preparation of silver nanoparticles. As a precursor for generation of nanoparticles by electric discharge, an aqueous solution of silver nitrate was used. The influence of experimental conditions, such as the influence of voltage polarity, influence of delivered power, effect of concentration, effect of added electrolyte and time course of nanoparticle formation were studied. All samples were analyzed by UV-VIS spectrometry. To confirm the presence of nanoparticles in the solution, one of the samples was analyzed by a scanning electron microscope with an energy dispersion spectrometer for elemental analysis. Plasma diagnostics was performed using optical emission spectroscopy.
Control of Embedded System Through Internet
Horák, Jakub ; Podivínský, Jakub (referee) ; Dobai, Roland (advisor)
The goal of this bachelor thesis is to enable a regular user to control the embedded system on Xilinx Zynq, which will include audio codec ADAU1761. In the thesis I will describe what is required to connect the device to the Xilinx Zynq platform. After that, the device’s control through Internet will be described, followed by the design and implementation of an application that will allow the user to interact with the device.
Energy audit civic building
Horák, Jakub ; Sýkorová, Iva (referee) ; Horák, Petr (advisor)
The bachelor thesis deals with energy assessment of apartment building by using energy audit. Building is evaluated in terms of energy, economic and environmental. Individual austerity measures are designed and folded to two variants, which are evaluated.
Influence of the forest environment under the disparate anthropogenic pressure on insects
Štěpánek, Jakub ; Horák, Jakub (advisor) ; Mladenovič, Strahinja (referee)
Bachelor thesis deals with the evaluation of the influence of environmental variables on the abundance of insects in areas left to spontaneous development. Concretely the location Nature Reserve Forest Polom and National Nature Reserve Žákova hora. In these localities were deployed window traps. Twelve traps at each site. Subsequently were made a total of 4 collections, which were categorized into higher taxonomic groups, the level of orders. Overall were trapped 10 365 individuals divided into 16 orders of insects. With using statistical analysis was evaluated the influence of the environment variables. Environment variables: trunk thickness (cm), distance from the center (m), percentage of spruce (%) had an insignificant effect on the total number of trapped individuals and the number of orders. Statistical significance was demonstrated only for the abundance of the order Hymenoptera in NNR Žákova hora.
Issue of Deer ked from the Perspective of Monitoring
Bjelková, Karolína ; Horák, Jakub (advisor) ; Holuša, Jaroslav (referee)
This bachelor thesis concerned issue of deer ked from the perspective of monitoring to wild game on the skin pulled from hunted animals and human specimens showing two locations for themselves binding - Mala Morava and Libava. Deer ked is hematophagous ectoparasite of cervids, which in recent years expanded its area of occurrence from Europe to America. The aim of this study was to determine the prevalence and intensity of infection and to evaluate the influence of the nature habitant, weather factors or determination of sex by the host.For identification were examined 95 animals in body area, on the nape and genitals. The overall intensity of the attack were analysed in relation to age, gender, weather and landscape characteristics of point of capture. Results of occurrence of deer ked are described and evaluated demostrate the prevalence of infection almost 100%, but the rate pressure of animals ranged from 0 to 10 deer ked 100 cm-2. The highest occurence was found in males, and simultaneously was also associated wit a host of areas on the body where the most parasites were found on the genitals, 7-10 pieces. The significant influence had the temperature. The influence of rainfall was insignificant. It was found that the highest occurrence is on the animals, which use habitant fields and meadows, probably due to positive effects of solar radiation and thereby raise the surface temperature of the skin. Localization of body aeas can be used to setting means for effectiveness insecticide against these parasites.
Bark beetles in forest ecosystems with disparate disturbance regimes
Zemanová, Jana ; Horák, Jakub (advisor) ; Jiří, Jiří (referee)
This thesis evaluated the influence of the forest environment with various rate of disturbance. Studied sites were left to spontaneous succession. The method of trunk window traps was used. These traps were divided into pairs at monitored sites. Each pair comprised active (with yellow label attached) and passive trap. The influence on the bark beetles was evaluated by statistical analysis. In total, 346 individuals were captured and 12 species of bark beetles were identified. The influences of the environment (circumference of tree trunk, canopy openness, dead wood, altitude and type of trap) were significant for the number of individuals, the total body length, the width of shield and the length of elytron. Wing length was only affected by circumference of tree trunk, canopy openness and dead wood. Number of species was only influenced by altitude.
Issue of deer ked from the perspective of efficiency of repellents
Hallová, Elen ; Horák, Jakub (advisor) ; Lukášová, Karolína (referee)
This bachelor thesis summarises information about hematophagous Deer ked (Lipoptena cervi), which attacks animals living in the wild and also humans. This topic is interesting particularly because of the global threat to human by haematophagous insects while continuous expansion of its distributional range. There is described external morphology and sexual dimorphism using electron microscopy. Due to an increased cases of incidences of Lipoptena cervi on humans there is description of production of a natural insect repellent and test of its effectiveness at selected sites outdoors with the help of test methods on human volunteers. Briefly, the thesis analysed the possibility of transmission of infectious diseases Lipoptena cervi. Biorepelent repeled Lipoptena cervi 100% even though it is a hematophagous, Lipoptena cervi has not yet been established as a carrier of pathogens, infections and other diseases on humans.
Saproxylic moths and their interaction with forest ecosystems
Rada, Patrik ; Horák, Jakub (advisor) ; Vladimír, Vladimír (referee)
The thesis deals with saproxylic moths (Lepidoptera). For many of them is their obligatory relation to the dead wood relatively little known. The thesis gives comprehensive knowledge about these species in the form of a literature review. It is based on the widespread modern definition of saproxylicity, so it covers a larger spectrum of species that are dependent by their development cycle upon wood. The result is a summary of information about each saproxylic family and individual representatives. It is also the view of the issue of collecting insects, fruit body of fungi or wood that are hosted by insects and their subsequent rearing until the emerge of imagos. Future research of this topic should be focused mainly on mapping of the occurence of these species and knowledge of their enviromental claims.
Modern Biogas Station as Part of "Smart Regions"
Horák, Jakub ; Pavel,, Milčák (referee) ; Lisý, Martin (advisor)
This thesis deals with the design of computational model of a biogas plant and its use in the concept of intelligent region with focusing on district heating and cooling network. The introduction contains review of technology used in the biogas plant. This review covers the description of modern biogas plants and determination of the energy and technology parameters for computational model of biogas plant. The next part of thesis describes analyze of the dynamics of the operation and the possibilities of using waste heat from biogas plant. The last and also the most important part is based on design of computational model of a biogas plant and design of connection of a biogas plant to the district heating and cooling network.

National Repository of Grey Literature : 16 records found   1 - 10next  jump to record:
See also: similar author names
7 HORÁK, Josef
3 Horak, J.
3 Horák, J.
30 Horák, Jan
4 Horák, Jaroslav
47 Horák, Jiří
7 Horák, Josef
30 Hořák, Jan
2 Hořák, Jaromír
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