National Repository of Grey Literature 109 records found  1 - 10nextend  jump to record: Search took 0.01 seconds. 
Influence of fuel additives for passenger cars
Obytová, Eliška ; Bradáč, Albert (referee) ; Bilík, Martin (advisor)
This diploma thesis deals with the addition of automotive fuels and their effects. The aim was to evaluate the function and efficiency of fuel additives present in the fuel at gas stations, and subsequently to improve the fuels accordingly by adding additional individual chemical compounds. The theoretical part explains the concepts, functions and processes related to fuel additives and the basics of tribotechnology. The practical part deals with the process of testing the properties of fuels, their functions, additional additives and its impact for practical use.
Evaluation of the Causes of Traffic Accidents involving Police Vehicles in the South Moravia Region in 2011-2020
Sobotka, Igor ; Stáňa, Ivo (referee) ; Bradáč, Albert (advisor)
This diploma thesis deals with the issue of traffic accidents of company cars of the Police of the Czech Republic in the South Moravian Region, in the period 2011 - 2020. The theoretical part is focused to a general acquaintance with police issues and other aspects related to the use of company means of transport and the performance of service at the Police. In the practical part, traffic accidents in the territory are evaluated in the given period in terms of their numbers, technical causes, consequences and other aspects. In conclusion, there are suggested measures which should lead to a reduction in accidents of police vehicles.
Perception of vehicle speed from the perspective of different driving experience
Budinová, Nela ; Bradáč, Albert (referee) ; Bilík, Martin (advisor)
Presented diploma thesis deals with the perception of vehicle speed from the different driving experiences point of view. The thesis is divided into two parts. First, the theoretical part is about motor vehicle construction, driving experiences, and further about the influence of gender on driving and sensory and emotional perception of humans. The second part is dedicated to practical measurement, where vehicle speeds were estimated during driving tests. During this measurement, the test circuit was passed two times in each vehicle. First run was dedicated to full concentration on a drive. In the second run, the respondents were distracted by sudoku solving. Subsequent evaluation of the obtained data is being executed from different points of view – speed category, men vs women, and roads category.
Influence of heavy vehicle load to the vehicle deceleration
Jirásková, Iveta ; Tylšar, Vladimír (referee) ; Bradáč, Albert (advisor)
The diploma thesis deals with the issue of braking trucks at different loads. The theoretical part defines the basic construction of trucks, truck brakes, the braking process and the factors that affect braking, braking deceleration, and legislative requirements for truck brakes. The practical part describes the course of experimental measurements, the use of the technique, the place of measurement, atmospheric conditions and used trucks. At the end of the work, based on experimental measurements, the obtained values of braking deceleration of trucks are evaluated.
Side collisions of vehicles at an angle of 11° at different speeds
Buchta, Ondřej ; Bradáč, Albert (referee) ; Rábek, Vlastimil (advisor)
The aim of this diploma thesis is determination of speed during sideswipe collisions of two vehicles involved. In theoretical part, available knowledge base and the preparation of experiments made for this thesis are described. Practical part describes individual experiments, and processes and evaluates the results of said experiments. This thesis aims to improve current knowledge base about sideswipe collisions.
Perception of vehicle speed
Kamasová, Lenka ; Bradáč, Albert (referee) ; Bilík, Martin (advisor)
The diploma thesis deals with the issue of driver´s subjective estimation of vehicle speed and at the same time it is a project dealing with acquisition and evaluation of data obtained during the driving tests. The perceived vehicle speed is examined from the perspective of a driver - the respondent, who has no possibility of controlling the actual vehicle speed on the vehicle's speedometer. The aim is to either confirm or refute whether the driver is able to adequately estimate the speed of a moving vehicle in the event of an accident as well as describe the factors that may affect a subjective estimation of the driver's speed.
Comparison of Light Parameters of Different Light Sources of Vehicles' Headlamps
Suchomel, Filip ; Motl, Jakub (referee) ; Bradáč, Albert (advisor)
This thesis is focused on comparison of parameters of light sources (halogen, xenon, LED) installed in Skoda Octavia 3rd generation. The opening part solves analysis of the current state of lighting technology and its impact on traffic safety. The next part is focused on general parameters of light, construction of light sources, optical systems and adaptation of the human eye to various light conditions, especially contrast. The practical part is focused on comparing the contrast values of individual light sources in relation to the dark and lightly dressed pedestrian in the area without artificial lighting.
Side collisions of vehicles at an angle of 8° at different speeds
Praus, Tomáš ; Bradáč, Albert (referee) ; Rábek, Vlastimil (advisor)
The diploma thesis deals with the problem of speed determination during tangent collisions of two vehicles. The theoretical part describes the available literature and the preparation of an expert experiment. The practical part describes the experiment itself. Its results are processed and compared with the literature in the theoretical part. The aim of work is to extend knowledge about tangent collisions and reduce the error rate in determining crash in the expert analysis or claims in insurance companies.
Possibilities of Point Cloud and Mesh Model Creation of Accident Site Using Photographs
Mojžyšek, Tomáš ; Bradáč, Albert (referee) ; Křižák, Michal (advisor)
The thesis focuses on creating point cloud and mesh model of chosen intersections and their applications in forensic-engineering praxis. In the first part, we describe a workflow for creating point cloud and mesh model of intersection by digital photogrammetry. In the second part, we applied these at chosen intersections. Which leads us to the comparison of three digital photogrammetric programs which we used to make point clouds and mesh models. At the end of thesis, we use our mesh models in forensic-engineering praxis and we decide about barriers in sign conditions at intersections.
Comprehensive System for Road Accident Analysis - Collision Between Vehicle and Motorcycle
Slepánek, Petr ; Kolíbal, Zdeněk (referee) ; Drahotský, Ivo (referee) ; Kropáč, František (referee) ; Bradáč, Albert (advisor)
This dissertation describes the issue of a complex system for analyzing the collision of a motorcycle with another vehicle and suggests a suitable methodology for solving this type of traffic accident. It summarizes the current knowledge in the field of motorcycle accidents withother vehicles, including their statistics and categorization. The author statistically evaluates accidents by their causes and proposes a methodology for solving individual types of motorcycle collisions with vehicles. To supplement and refine the input data for the analysis of road accidents involving motorcycles, a set of author’s own measurements made on different types of motorcycles is included. The thesis contains measurements of their acceleration, deceleration and avoidance maneuvers. Other actual contributions of the thesis are represented also by flowcharts, offering a comprehensive approach to solving individual types of colissions of motorcycles with other vehicles.

National Repository of Grey Literature : 109 records found   1 - 10nextend  jump to record:
See also: similar author names
3 BRADÁČ, Antonín
2 Bradáč, Adam
3 Bradáč, Antonín
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