|
| |
|
|
Facilities for Exchange Rates Risk Reduction in the Company FLÍDR, s.r.o.
Flídrová, Kristýna ; Polák, Josef (referee) ; Beranová, Michaela (advisor)
Master´s thesis deals with possibilities of exchange rates risk reduction in the company FLÍDR, s.r.o. Exchange rate volatility has begun to be a serious problem of many business entities. Unfortunately, the Czech Republic will not join Economic and Monetary Union of the European Union for longer time. The outcome of Master´s thesis is the suggestion of utilization of financial derivatives and proposal of new financial derivatives. Proposed financial derivatives are composed to minimize exchange rate risk in the company FLÍDR, s.r.o., and to minimize losses caused by exchange rate volatility of Euro currency.
|
|
|
Electronically adjustable active elements for the realization of oscillators and function generators
Bokůvka, Tomáš ; Jeřábek, Jan (referee) ; Polák, Josef (advisor)
This thesis is focused on the design, analysis and realization of new oscillator and generator circuits using electronically adjustable active elements. In the opening discussion the aspects of distribution, proposal, properties and oscillation conditions of generators and oscillators are theoretically described. Next, there are presented some electronically adjustable active elements which appear to be suitable for construction of the oscillators and generators. This covers in particular the Operational Transconductance Amplifier OTA, Voltage Control Amplifier VCA and Digitally Adjustable Current Amplifier DACA. Using these elements the six oscillators and two functional generators are presented. Simulation results and design methods are included. Next part is focused on practical realization and measurement. At the end of the thesis the measurement and simulation results are discussed and compared.
|
|
|
Design of new V/I and I/V converters for the measurement of current-mode filters
Jarník, Lukáš ; Polák, Josef (referee) ; Langhammer, Lukáš (advisor)
This master’s thesis deals with problems of analog differential converters, which are used in measuring circuits working in the current mode. The aim of this thesis is to propose a new voltage to current and current to voltage converter, that should influence measured frequency properties as little as possible. Commercial active elements are use to design converters. Active components are compared on the basis of properties as bandwidth and slew rate. Designed converters are simulated in Orcad PSpice program. Converters, of the best behavior are practically implemented and measured. Measured and simulated values are compared.
|
|
|
Creation of laboratory exercises in the NS3 enviroment
Štefančík, Matej ; Langhammer, Lukáš (referee) ; Polák, Josef (advisor)
Diploma thesis provides an introduction to the ns-3 network simulator. It describes the basic abstactions and components of the instrument. This work further discusses the theory, which was applied during simulation creation. The concept of unicast, the issue of IP addressing and routing in networks are specificaly analyzed. The practical part is focused on the creation of four laboratory tasks within the scope of Advanced Communication Techniques. The first task is dedicated to the the issue of static unicast routing in the network. It clarifies the impact of metrics on the process of routing. The following task compares the different types of ICMPv4 and ICMPv6 messages. The third task discusses additional functions of the ICMPv6. Specifically, it focuses on five different types of ICMPv6 messages defined by NDP (Neighbor Discovery Protocol) and their role in the network traffic. The last task focuses on ensuring the quality of services (QoS) in wireless networks, by setting priorities and thereby dividing the traffic into different classes. Attention is focused on parameters such as throughput, delay and jitter.
|
|
|
XML Data Compression
Jelen, Michal ; Polák, Josef (referee) ; Kováč, Dominik (advisor)
This master’s thesis is dealing with problems of XML data compression. It describes a characterization and important concepts of XML language as well as AIXM as XML data format. It documents contemporary compression methods of XML and divides them into appropriate groups. Thereinafter a testing of XML data compression using mentioned methods and evaluation of results is implemented. With a consideration of processed data there is created and presented an application which enables lossy and lossless compression of AIXM with the help of particular elements data analysis. All of it with user selection options of AIXM objects and way of resultant compression.
|
|
|
Modelling of differential current amplifier
Polák, Josef ; Šotner, Roman (referee) ; Jeřábek, Jan (advisor)
The aim of my diploma thesis was programming of systems for measuring AC, DC and impedance measurements. Each measuring system measures selected characteristics of current amplifier with controllable amplification DACA_N. Control programs I have created in Agilent VEE Pro 9.2. The measured data are stored to executable files in MS Excel for further processing. With created measurement programs I made measurements of eight current amplifiers. The results of individual measurements I compiled into graphs and compared with each other circuit characteristics of amplifiers. Then there is described controlling and connection of current amplifier and its construction. At the end the diploma thesis describes amplifiers with the worst and the best measured circuit characteristics. The measured values show that the amplifier DACA_N with slight differences works by theoretical assumptions and measurement systems suggested by me work with no problem.
|
|
|
Building of the brand CONTECHIN on international markets
Minář, Viktor ; Halík, Jaroslav (advisor) ; Polák, Josef (referee)
The main purpose of this thesis is to describe the importance of and the instruments needed for building the brand CONTECHIN on international markets. The thesis analyzes the current brand situation and contains research on the perception of the brand CONTECHIN and also if the brand is in conflict of law with a different brand on any international market. The particular instruments used for brand building were also examined. The research did not reveal any major weaknesses. The current strategy is eligible for further development. The areas of social media, sponsoring, registration of trade marks and graphic of the brand logo are open for improvements. The thesis should serve as a comprehensive guide for building the brand CONTECHIN in the future. The thesis was offered to the company CONTECHIN Ltd. for further use.
|
|
|
Foldable Containers and their utilization in Intermodal Transport
Pernikář, Jan ; Kolář, Petr (advisor) ; Polák, Josef (referee)
The aim of the thesis is to characterize the folding containers as one of the potential solutions to the problem of the repositioning of empty containers and to evaluate the possibility of their practical use in intermodal transport. The theoretical part characterizes contemporary development in international trade, intermodal transportation, the issue of empty containers and also characterizes foldable containers together with the assumptions of their successful introduction to the market. The practical part deals with current concepts of foldable containers, there is also an example for comparing the costs of transport when using standard or foldable containers and the opinion of a representative of one of the leading shipping companies on use foldable containers in practice. To obtain information used in the practical part of the thesis a secondary research was carried out, where most information comes from research papers and websites, and also primary research was done in the form of an interview with a representative of the shipping company. In conclusion is the evaluation of the possibility of using foldable containers in practice which is based on the information obtained through research.
|
|
|
Analysis of the port of Koper and its transport connection
Řiháková, Veronika ; Kolář, Petr (advisor) ; Polák, Josef (referee)
This diploma thesis deals with the development of the port of Koper during last ten years, including its transport links to markets in Central and Eastern Europe. The aim is to determine, whether the port of Koper has its potential to grow, and if it could become an equal competitor to European ports in the North Sea. It also aims to identify opportunities that should be used, and obstacles that should be overcome in order to ensure successful development of the port of Koper.
|
guest ::
