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HTTP Analyzer with Web User Interface
Žižka, Martin ; Straka, Martin (referee) ; Tobola, Jiří (advisor)
This thesis provides a issue of the analysis HTTP traffic. It describes the principle and the procedure of HTTP protocol. It is interested in the structure and function of the existing tool for the analysis HTTP traffic HTTPry. It is also interested in the extension of the HTTPry tool about saving records in the database MySQL, IPv6 protocol maintenance and the VLAN technology. It also describes the methods of the testing tool and compares achieved results of modified version with the original tool version. It mentions the proposal and implementation of the information system, which views the captured informations. In the end, there are the results and another opinions of the extension discussed.
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Controller for the Model Railway Based on FITKit
Kandrik, Ján ; Kotásek, Zdeněk (referee) ; Straka, Martin (advisor)
This work discusses a controller for model railroad derived from a state-of-art railway interlocking system, electronic signalbox. Work of interlocking and model railroad signalling issues are described among the design and implementation parts of such system. Also analyses creation of parts for the controller using FITkit, a microcontroller educational platform.
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Design of the Multicore Processor in VHDL
Novotný, Jaroslav ; Straka, Martin (referee) ; Kaštil, Jan (advisor)
The objective of the thesis is to design and implement in the VHDL language a simple multiprocessor supporting parallel computing. Furthemore, the author has designed and realized universal transparent generic interconnection layer with the objective to connect any given number of processor cores to shared address space using arbitrated bus. Parametrized cache has been allocated to each core in the layer. MSI protocol was used to deal with the issue of memory coherence of the implemented system. Direct and indirect synchornisation support is available to the user. In order to verify the functionality of the system, simple processor core has been designed and implemented, and its copies were connected to the interconnection layer. Various testing programmes have been used to verify the functionality of the system, which also confirmed that the acceleration of computing has been achieved successfully. Virtex6 chip has been used to test the whole system.
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Computational modelling of high-frequency noise inside cabin of aircraft EV-55M
Straka, Martin ; Pellant, Karel (referee) ; Švancara, Pavel (advisor)
This thesis describes methods of high frequency noise and vibrations computation of cabin part of EV–55M (aircraft developed by Evektor Kunovice). There is a brief summary of methods used for determining high frequency noise and vibrations in the first part of the thesis. Detailed explanation is given for Statistical Energy Analysis (SEA) which is nowadays the most dominant method in this area. The energy balance equation is derived in this chapter and SEA parameters such as modal density, damping loss factor, coupling loss factor and power input are introduced here. Next part deals with main noise sources of propeller driven and jet aircraft and passive and active noise controls are discussed. Practical part of this thesis deals with modeling aircraft EV–55M fuselage using VA One SEA module. Two models were created. First of them is only an outside fuselage with aircraft flooring and the second one is extended by interior trim panels and is applicable for simulation of noise control treatments. Computational modeling is accompanied by experimental measurement of passive noise control material characteristics. Postprocessing of information obtained from impedance tube measurement was performed in FOAM – X. Determined characteristics of porous material were used as inputs to VA One and reduction of sound pressure level in fuselage cavities by using noise control treatment was found. In conclusion there is a summary of noise transmission paths from sources to interior cavity and some treatments of them are simulated
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Conceptual design of two-seat high performance car
Straka, Martin ; Blaťák, Ondřej (referee) ; Porteš, Petr (advisor)
is diploma thesis deals with design concept of two-seater sports car with the main focus on chassis torsional stiffness and axle kinematics. The main idea started with some paper sketches which were later transferred to the 3D model with all the main parts (engine, differential, driver etc.) using CATIA V5 design program. Then the torsional stiffness was counted using FEM software ANSYS 12.0. Finally the axis geometry during bump/rebump movement of the wheel was simulated in MBS system ADAMS 2007.
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Influence of eardrum perforation position and eardrum perforation size on ear sound transfer function
Straka, Martin ; Dušek, Daniel (referee) ; Pellant, Karel (advisor)
This thesis describes influence of eardrum perforation and perforation patching (myringoplastics) on sound transfer function. Perforation size, perforation position and inluence of graft material on hearing are discussed. This thesis is completed with 3D mathematical modeling in ANSYS system. The 3D finite element model of human ear is remodeled to represent the perforated and graft covered stage. Mathematical modeling is used for sound transfer calculations and for the discussions of the influence of tympanic membrane perforation on hearing. Set of audiological examination is processed and it is made the comparison between mathematical modeling results and audiology results.
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Passenger Car Kingpin Axis Geometry
Straka, Martin ; Blaťák, Ondřej (referee) ; Porteš, Petr (advisor)
This thesis is focused on of passenger car kingpin axis geometry. Values of toe-in, wheel camber, positive castor and steering axis inclination of 74 cars are gained from Bosch ESI [tronic] database. There is confrontation, linear dependence and influence of drive wheels on these data.
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The Construction and Usage of Smaller Computer Networks
Straka, Martin ; Pinkas, Otakar (advisor) ; Šmejkal, Ivo (referee)
The main goal of this bachelor thesis is to document the gradual building of a computer network and its functioning including the theory necessary to create a step-by-step guide for doing so. The theory concerning foresaid funcionality was gained via the use of internet resources and the literature mentioned in the document itself and the practical part is based on the use of resources similar to the ones available at the workplace designed for its use. The document itself is about designing the correct network usable for a small business which is however capable of using higher tiers of client-server network functionality and the traffic monitoring available to it. The second goal is to choose and set up such network services which are crucial or auxiliary for the business core funcionality and the final part is about expanding such small network using VPN.
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