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The impact of HVAC systems on the acoustic microclimate of clean rooms
Jelínek, Ondřej ; Mathauserová, Zuzana (referee) ; Papež,, Karel (referee) ; Rubina, Aleš (advisor)
The work description is to create a system of measures to prevent the spread and the consequent attenuation of sound in air handling systems serving the cleanrooms. The thesis presents a solution to noise attenuation in the investigated area, and in HVAC duct, which uses a commercially available material in the form of sound insulation hoses. In the systém solution is part of the work focuses on the optimal design of terminal elements to distribute air in a clean room. Processing methods utilize theoretical and experimental approach. The experiment comprises a unique analysis of the sound insulation properties of selected products under specific conditions. The data obtained are analyzed and incorporated into the framework of this work created program module for determining the attenuation and noise propagation in an enclosed space. Math and physical dependence are programmed into their own DLL by programming language DELPHI.
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Ventilation of the library
Martinčič, Jakub ; Jelínek, Ondřej (referee) ; Blasinski, Petr (advisor)
The bachelor thesis deals with the project of air-conditioning system in the library building with study room, classrooms, hall and book stores. Each system is designed to fulfill operational, functional and sanitary requirements of indoor microclimate. System No. 1 (1. S) and system No. 2 (1. NP) are designed to be able to cover heat losses in winter time and heat gain in summer time. System No. 3 which is for the entire 3. NP is designed for complete air conditioning (hot-air ventilation). This system is complemented by VRV cooling system. The theoretical part is focused on the problems of acoustics in ventilation.
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The influence of a high-fat diet on the parameters of body composition
Jelínek, Ondřej ; Coufalová, Klára (advisor) ; Petr, Miroslav (referee)
Title: The influence of a high-fat diet on the parameters of body composition Objective: Evaluation of the effects of a high-fat diet on weight, body composition and intervening variables in both diabetic and non-diabetic patients, comparing these effects with those of diets of lesser fat content, and an evaluation of these findings with latest dietary guidelines of WHO, FAO and Ministry of Health of the Czech Republic. Methods: The design of this thesis is a review of randomized controlled trials and randomized crossover trials. A total of 17 trials were included, regardless of their blinding and their energy or saturated fat restriction. No specification of inclusion criteria with regard to minimal sample size or minimal duration of the intervention was made. Results: The trials have shown that a high-fat diet produced on average greater weight loss in the short-term than a diet with lesser fat content, however, by 1 year the differences were not significant. No differences were observed between the effects of the diets on fat mass or fat free mass in any of the trials included. Trials comparing the effects of diets on appetite have shown that fat has a greater satiating effect than carbohydrate, but lesser satiating effect than protein. The findings didn't fully correspond with official...
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Airconditioning in healthcare facilities
Růžička, Věroslav ; Jelínek, Ondřej (referee) ; Rubina, Aleš (advisor)
This bachelor thesis deals with design of air conditioning equipment serving the spaces of hospital inpatient ward and its associated facilities. Equipments designed in the computational part have the task to transport adapted fresh air to hospital premises. The system is devided into two units. Primary mechanism operates bedrooms and their sanitary facilities. Secondary mechanism operates associated facilities. Both mechanisms are designed so that hot air can ventilate in winter. To cover the heat load in summer, fancoil units are designed. Device number one is also able to manage the treatment of humidity. The theoretical part of the thesis focuses on air filters and filtration of atmospheric air.
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Air conditioning in the production hall
Myjavec, Patrik ; Jelínek, Ondřej (referee) ; Blasinski, Petr (advisor)
The bachelor thesis deals with the project of air-conditioning system in the manufacturing hall, storage and administrative premises. Each system is designed to fulfill the operational, functional and sanitary requirements of inner microclimate. System No. 1, for the manufacturing hall, is designed to be able to cover loss of heat in winter time and heat gain in summer time. System No. 2, for storage premises, serves for heat ventilation all year round. System No. 3, for administrative premises, is designed as heat ventilation accompanied by VRV cooling system to cover heat load in summer time. Theoretical part focuses on natural ventilation, its principles and division.
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Geolocation of Internet nodes using domain name analysis
Jelínek, Ondřej ; Verner, Lukáš (referee) ; Komosný, Dan (advisor)
Goal of this thesis is to create an application for geolocation of hosts using an analysis of domain names. The theoretical part of the thesis focuses on estimation of geographic location of hosts in the Internet (called geolocation) and the DNS system. This knowledge is necessary for creation of the application. The first task is to choose suitable method of geolocation. The next step is to fully undestand the DNS system and function of domain names. Finally, the application for analysis of domains in JavaFX Script programming language is created. The practical part of the thesis describes this application, its structure, function and results. Acquired data are analysed and compared to results of other geolocating methods.
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Building heating gas boiler and solar water heating
Jelínek, Ondřej ; Vrána, Jakub (referee) ; Treuová, Lea (advisor)
Proposal for heating and water warming of rehabilitation centre. The first part of the project analyses given topic, the matter of calculating heat losses and heating elements proposal. It also deals with heat source for heating, fuel for boilers and condensation boilers functioning. The second part covers the technical design of the theme and the third part deals with the solar system.
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Acoustic microclimate non-manufacturing buildings
Jelínek, Ondřej ; Andrys, Petr (referee) ; Rubina, Aleš (advisor)
This master´s thesis focuses on effect of acoustic microclimate in non-production buildings to human. Within elaboration this topic was made measurment acoustic power level and created protocols by valid technical standards and law. I dedicate to damping noise and aerodynamic noise in airconditioning in part topic analysis. The part aplication on real object deal with assessment current status and draft measure for improve acoustic ratio in laboratories in center of research located in Brno. That includes describe of air-cndition unit and development two variants and their rating.
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Image similarity measurement using points of interest
Jelínek, Ondřej ; Uher, Václav (referee) ; Burget, Radim (advisor)
This paper presents a new object detection method. The method is based on keypoints analysis and their parameters. Computed parameters are used for building a decision model using machine learning methods. The model is able to detect object in the picture based on input data and compares its similarity to the chosen example. The new method is described in detail, its accuracy is evaluated and this accuracy is compared to other existing detectors. The new method’s detection ability is by more than 40% better than detection ability of detectors like SURF. In order to understand the object detection this paper describes the process step by step including popular algorithms designed for specific roles in each step.
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Airconditioning of the house to the medical service
Vytasil, Michal ; Jelínek, Ondřej (referee) ; Rubina, Aleš (advisor)
This bachelor's thesis deals with the design of air conditioning equipment in the house to the medical service. The solution is the basement floor with a waiting room, reception and sanitary rooms and 1.NP with surgery. Heating load of part of the basement is completely drained air handling units, in other rooms are used sub-system with fan coil units. Sanitary rooms are exhaust ventilation ceiling-suspended equipment. In the theoretical part of the thesis focuses on the bypass factor, surface temperature of the heat sink and their effect on the dehumidification.
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