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Intraspecific diversity in the ichthyofauna of the Czech Republic, its knowledge and protection
Lusk, Stanislav ; Lusková, Věra
At present, 48 fish and 2 lamprey species occur in the waters of the Czech Republic. Of these, 22 fish species are protected by law all over the country or locally, the protection of 3 fish and 2 lamprey species is conditional. For the time being, there are no legal means to protect their intraspecific (genetic) diversity. In this point, one can only utilise certain indirect measures that follow from the limits pertaining to endangered species. The available knowledge of intraspecific diversity of the fish fauna in the Czech republic is fragmentary an incoherent. That is one of the causes of the absence of legislative means to protect the intraspecific diversity. In addition, the apprehension of this phenomenon by the piscatorial public is insufficient although this diversity is the most endangered by the very fishery management. Increased research and knowledge of the intraspecific diversity of particular species is inevitable as the basis for its conservation.
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Use of distribution of tasks in construction company
Repoň, Patrik ; Fábry, Jan (advisor) ; Skočdopolová, Veronika (referee)
Bachelor thesis deals with distribution of tasks, which have utility in the construction company. The aim is to apply these distribution of tasks to problems with which the construction company often meets, and to reach an acceptable solution that will help to streamline production, save working time or financial recourses. Bachelor thesis is divided into two parts. The first part is a theoretical part, which presents problems in construction companies in general, as well as the application of different types of distribution of tasks. Furthermore, we face mathematical models of these tasks and with description of optimization software LINGO, which we will use to resolve them. In the practical part the distribution of tasks are applied to concrete problems and real data. The final part contains an overall assessment of the results.
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The effectiveness of welding on furnace structures.
Rousová, Michaela ; Mrňa, Libor (referee) ; Kubíček, Jaroslav (advisor)
This diploma thesis is resolving all the possibilities of enhancing the efficiency of furnace structures welding. Small batch production does not offer many possibilities for implementing mechanization or automation. On the other hand, when using a big batch production, efficiency can be enhanced by means of a robotic workstation. When the production batch is big enough, we will see a costs save after a short time, mainly in labor costs. This means the return of investments will be in short time period. In the LAC company there are three types of products made. At laboratory furnaces the efficiency can be enhance by using fixtures. At other standard and atypical furnaces is very difficult to design fixtures or positioners because of their different sizes. Big complication can be also a company location on second floor. The most suitable product regarding to welding efficiency enhancement is big batch production of heaters. For this type the welding time can be shortened by means of a robotic workstation.
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Regulation of accounting and taxes in the Republic of Mauritius
Vyroubalová, Adéla ; Dvořák, Martin (advisor) ; Skálová, Jana (referee)
The introductory part of the bachelor thesis briefly deals with the legal forms of business in the Republic of Mauritius. The main objective of this work is based on the characterization of accounting regulation in the Republic of Mauritius and bring the national form of accounting regulation. The thesis describes the individual parts of Financial Reporting Standards for Small Entities issued by Financial Reporting Council Mauritius. The Financial Reporting Standards for Small Entities are compared with the International Financial Reporting Standard for Small and Medium Sized Entities at the same time. When the standards were compared, significant conformity and differences were highlighted. The final part is devoted to the tax system of the Republic of Mauritius. This section deals mainly with constructional elements of corporate and personal income tax.
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Ellipsometry of Thin Films
Novotný, Zbyněk ; Navrátil, Karel (referee) ; Nebojsa, Alois (advisor)
Diploma thesis deals with ageing process of thin films of Co and Cu on Si substrate, prepared by the IBAD method. The process of film ageing, which depends on time of exposition to the atmosphere at room conditions, was investigated with spectroscopic ellipsometry (VIS+UV) and atomic force microscopy. In case of thin Co films, approximately four days long incubation period was observed. During this time period, a change in the optical parameters of the film occurs without a measurable change of the film topography. Using non-contact atomic force microscopy, a growth of the transitional film in the island growth regime was observed. During the ageing of thin Cu films, two stages of growth of the transitional layer were observed - nucleation stage and growth stage. Both of these time periods of the transitional layer growth show direct logarithmic dependence. Using non-contact atomic force microscopy, the growth of the transitional film was observed. Using atomic force microscopy in non-contact regime, time dependent measurement was done and the process of forming of one monolayer of the transitional layer was documented. Within the diploma thesis, a series of experiments on ultra high vacuum system were performed in order to investigate phase transformation of thin Fe films (22 monolayers) on Cu(100) stabilized by CO absorption. The transformation from fcc phase to bcc phase was induced by Ar+ ion beam bombardment with the ion energy in the range (0.5-4) keV. The process of phase transformation was observed by surface magneto-optic Kerr effect, Auger electron spectroscopy and low energy electron diffraction.
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Comparison of quantitative LIBS analysis of steel standards utilizing single-pulse and double-pulse LIBS
Pořízka, Pavel ; Hrdlička, Aleš (referee) ; Kaiser, Jozef (advisor)
In this diploma thesis the differences between single pulse and double pulse laser induced breakdown spectroscopy (LIBS) methods are discussed. The time evolution of laser induced plasma (LIP) parameters, such electron density, plasma temperature, density of ions and atoms is shown. Selected methods for evaluation of plasma parameters (Boltzmann equation, Saha-Boltzmann equation etc.) are also stated. The theoretical bases of local thermodynamic equilibrium (LTE), which is necessary condition for using of previously stated methods for computation of plasma parameters, are discussed. Diploma thesis also contains the description of each component of our LIBS experimental set up and the way of their optimization. Presented theoretical advantages of DP LIBS method are demonstrated on results of experimental measurements of steel standards.
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Zjednodušení kvantových obvodů pro modulární umocňování
Fišer, Petr ; Ivánek, Jiří (advisor) ; Nentvich, Libor (referee)
This thesis is based on top of the previous thesis "Security of modern encryption protocols" where we introduced a new paradigm for constructing quantum circuits. We have built circuits for modular arithmetic (addition, multiplication and exponentiation) in order to break El-Gamal asymmetric cryptosystem. Current thesis reviews all proposed circuits and discusses possibilities of their further optimization in goal of lowering the number of used qbits at least by an order of magnitude. It also shows that this is not possible due to existence of COPY gates which make the design inherently unoptimizable. Getting rid of COPY gates is, however, not possible without substantial rewrite of the whole paradigm. The overall estimate of number of qbits used in circuits thus remains O(log(m)log^2(N)) where m is a processed number and N is a modulus. The thesis also proposes optimization of the modular multiplication circuit that, if issues with COPY gates are resolved, allows us to lower the number of used qbits by about O(log(m)) at the price of a longer execution time.
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Complexes of Cationic Porphyrins with Nucleic Acids Studied by Surface Enhanced Resonance Raman Spectroscopy
Lásková, Barbora ; Mojzeš, Peter (advisor) ; Michl, Martin (referee)
Complexes of cationic porphyrins with nucleic acids are interesting from the point of view of delivery of therapeutic oligonucleotides into cells as well as for photodynamic therapy of cancer. Diploma thesis deals with study of the complexes of cationic metalloporphyrin CuTMPyP4 with poly(dG-dC)2, where intercalation of porphyrin within polynucleotide's base pairs is supposed and with poly(dA-dT)2, poly(dA)·poly(dT), in which external groove-binding of CuTMPyP4 on the helix is assumed. The measurements were made by SERRS, RRS and absorption spectroscopies. From the time evolution of the SERRS spectra for each complex it was found, that intensity of SERRS spectra and rate of SERRS kinetics for complexes fall short of intuitive supposition about low SERRS signal and its slow increasing in the case of intercalation of porphyrin, because for complex of CuTMPyP4 with poly(dG-dC)2, the SERRS kinetic are very fast and final SERRS signal is more intense than for poly(dA-dT)2, poly(dA)·poly(dT). Comparing the SERRS and RRS spectra of the complexes it was found that SERRS spectra correspond to the porphyrin molecules released from the complexes rather that to the entire complexes. Study of various colloidal systems used for SERRS measurements revealed that SERRS signal evolves with time of exposition, namely for...
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