The diploma thesis is focused on the development of a mathematical model of the tractor-tool set in the MSC Adams program enabling analysis of the influence of the position of the upper linkage of the three-point hitch on the load of the driving wheels during the system operation. The measured force effects are analysed with focus on the adhesion load of the drive wheels and the traction properties of the tractor. Based on the calculations made, it determines the optimal setting of the upper link of the hitch for the connected tool.

In this Master's thesis a power line communication is shortly described and the scheme of the communication system is realized. The communication device is called NVMB. This abbreviation means Network Voice Message Box. It should be used for transfer of the voice message via power line. It enables its recording, playback and sending. A process of the scheme design is created, functionality of the device is realized and reviewed in the main part of the Master's thesis. The other chapter of the thesis is devoted to the software communication system.

Master’s thesis deals with possibilities of data communication on low voltage power lines, so-called PLC. This technology allows data transfer on power lines. According frequency band the PLC can be subdivide into narrowband or broadband class. Given are theoretical knowledge’s of data communication on power lines and describes technical solutions. Consequently is suggestion of LAN, which is accessible for commercial usage made by DS2 and his suitable for home use. The main acquisition is implementing and measuring this experimentally created LAN in family house. The results are real bitrates depending on distance and quality of specific connection.

The thesis deals with the design and implementation of smart house lighting. In the living parts of the house, the light intensity is maintained at a constant level which is set by the user. The intensity of lighting can be set manually for each room from a central module with a user interface. It can also be changed by any remote control directly in the room in which the user is currently located. When the remote control is used, the information about the change of light intensity is transmitted to the central module. For communication between the central module and the luminaires, the existing power lines are used.

This Master’s thesis process list of different finite element programs, which allows us to simulate process of material separation. We estimated their advantages and disadvantages in the end. In program ANSYS Ls-Dyna was created 3D model, in which we simulate process of orthogonal splinter machining and we study dependence of changes different input parameters (tool geometry, depth of cut, cutting speed) on the chip form and forces rate between tool and workpiece.

The present master thesis deals with the design of wheel disk for passenger car. The review part of this thesis summaries the history and development of the wheel; this is followed by a description of individual construction types of wheel disk for passenger car presently used. The construction part of this thesis provides a design of disk of given parameters based on the analysis of forces acting on the car wheel. For the purposes of design, the stress and fatigue analyses are performed.

Identification, objectification, and determination of performance criteria for elite soccer players. Aim: Identification of key point indicators (KPI) of young soccer players with a focus on objectifying and determining the possibility of achieving the highest level of performance. Methods: The study included 157 soccer players, who were then divided into five age groups (U21, U19, U18, U17 and U16) and three performance groups (Elite - 1st league players, Sub-elite - 2nd league players, Amateur - 3rd league and lower performance levels players). Within laboratory diagnostics, the following areas were evaluated: body composition (bioimpedance method), postural stability (using pressure plates), explosive power of the lower limbs (three types of vertical jumps), strength and power of knee extensors and flexors (using isokinetic dynamometry) and the value of the maximum aerobic capacity VO2max (using the pulmonary ventilation exercise test). Within the field diagnostics, the areas of acceleration time (sprint at 5 and 10 m), maximum speed (sprint at 20 m flight), time in the test of change of direction (Agility 505 test and K-test) and values of endurance ability (Yo- Yo intermittent recovery test level 1 and 2). The diagnosed data were then processed in the statistical program RStudio® (USA) using...

Title: Use of fitness center to affect the strength of the lower limbs for football players. Objectives: The aim of thesis is to create an overview for strengthening the lower limbs of football players from lower categories in fitness center. Find information about the strengthening of the lower limbs of football players from performance category and compared with men who go strengthen to the fitness centers. Methods: The paper has been used the literature analysis and carrying out survey which was conducted using interviews. 50 football players of performance category were target group. Results: In this work it was found that 72% football players dedicated strengthening the lower limbs especially in a comprehensive way and not just in fitness centers, as well ass at home and in training. The lower limbs of football players are overwhelmingly strengthened, but at lower categories the quidance of trained coach is missing. The number of reps and sets in training for the lower limbs are rather lower. 60% of footballers train in one set under 10 reps and 84% footballers do under 16 sets in strength training of the lower limbs. Keywords: Lower limbs - football - strength abilities - methodology of the strengthening - exercises application.

Title: Use of fitness center to affect the strength of the lower limbs for football players. Objectives: The aim of thesis is to create an overview for strengthening the lower limbs of football players in fitness center. Methods: The paper has been used the literature analysis and carrying out survey which was conducted using interviews. 50 football players were target group performance categories. Results: In this work it was found that football players dedicated strengthening the lower limbs especially in a comprehensive way and not just in fitness centers, as well ass at home and in training. The lower limbs of football players are overwhelmingly strengthened at least in some way. Keywords: Lower limbs - football - strength abilities - methodology of the strengthening - exercises application.

Title: Training of juniors in the alpine disciplines focused on power skills using balance aids Objectives: The aim of this study is to find out, effectiveness of selected special exercises focused on power skills using balance aids. Methods: Simple experiment lasted 23 weeks. The group was made up of skiers aged 17 to 19 (n = 11). The skiers were assigned to two groups with and without balance aids. All were tested in the beginning, middle and at the end of the training program. They did four physical tests: two-footed jump, chin-up, jumps over bench, five jumps. Results: The results of our experiment, show that exercises with balance aids are not so effective. We found difference only between first and second tests. We didn't find out difference at the third testing. The value of the tests are shown with averages and standard deviations in tables and graphs . Keywords: Alpine disciplines, power skills, juniors, balance aids, coordination