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Wavy Films Flow: Linear Stability and Evolution
Wein, Ondřej ; Tihon, Jaroslav
The Orr-Sommerfeld (OS)problem is analyzed in terms of the relation between complex-valued wavenumber alfa and celerity c. For the long-wave regular branch, Taylor series to c(alfa) is found to be of limited use, as its convergence radius pi is to small. Wave characteristics of the conception region, including besides c(alfa) also the wall shear rate impendance q , are obtained for the maximum spatial growth rate scenarioo by solving the OS problem numerically.
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Řízení IS/ICT se zaměřením na sourcing služeb informačního systému
Šebesta, Michal ; Voříšek, Jiří (advisor) ; Havlíček, Zdeněk (referee) ; Příklenk, Oldřich (referee) ; Král, Jaroslav (referee)
Research on outsourcing has been around for several decades, while recent evolution in the information systems discipline towards ICT service commoditization significantly changes the context of decision-making. Services that are available on-demand via the Internet allow organizations implementing functions they demand in a fraction of time. This trend represents a chance for organizations seeking to use advanced ICT services without a need of major investments. Problem is the current lack of guidelines and tools for managing ICT services and their outsourcing. Given the trends on the ICT service market, it is expected that much of the IT management in the future will encompass the ICT services and utilize service-level structures. Methods currently available are either too broad or encompass only small part of the whole problem. Ad-hoc or unsound decisions in this area might cause major complications in terms of quality, usability, integration, and consequently influence total cost of organizational IT. Organizations need to either revise existing models or propose and implement completely new models to manage their IS/ICT. This thesis deals with the management of IS/ICT with focus on the ICT services outsourcing. It discusses available sourcing models in the literature and links them to the various interconnected areas. Based on these areas, it presents an integrated view on IT outsourcing strategies. Most importantly the thesis proposes an original concept for decision-making about outsourcing of ICT services named the SOURCER framework. This approach utilizes the presented outsourcing strategies, and introduces a complex methodology and decision-making criteria that will assist organizations with selection of ICT services in order to maintain and manage a most suitable ICT service portfolio. The decision-making is based on four essential viewpoints: function, costs, time, and quality. These viewpoints are discussed, individually analyzed, and serve as a basis for further research. The whole framework is developed and validated according to Design Science Research Methodology (DSRM). Individual components are evaluated using a survey among a group of selected IT managers. Proof of concept is then established by a case study on framework use in a real organization. This case study covers strategy specification, business--IT alignment, specifying service architecture and its interconnections, outsourcing, and management of the ICT service portfolio.
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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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Introduction to bio art
Šperanda, Nina ; SILVERIO, Robert (advisor) ; JANOŠČÍK, Václav (referee)
Bio art is a contemporary art practice that works with living organisms (except humans) or is created in cooperation with living organisms. It is relatively new art movement that is rooted deeply inside the history of evolution, domestication of animals and plants, technological discoveries, their development and science. Never before was art questioning its ethics and aesthetics in such profound, molecular and sub-molecular way.
In this work I will consider the historical influences and conditions that led to current developments in the field. I will also try to explain the problematics of defining what bio art is and try to clarify the associated terminology. Most relevant and ground breaking works in the field will be mentioned as some new recent developments.
Aesthetics of bio art is also an important subject often set aside by the ado around ethics of it. It is an extremely important subject to be considered when talking about bio art and I will try to sketch out a brief outline of it with references to philosophy and contemporary bio art theory.
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Evolutionary psychology of art
Lačev, Alek ; Štětovská, Iva (referee) ; Šípek, Jiří (advisor)
In this thesis I concern with a phenomenon of art within field of evolutio-nary psychology. This phenomenon apparently exceeds the functional and as such it "cries out for an explanation". I explain that evolutionary theories of art consider art in the light of scientific attempt to understand human nature. And in accord with those I ask, why art exists at all or why it is so prevalent in hu-man behavior. There are many evolutionary accounts of art. Yet, I will focus on four of the foremost evolutionary theories of and their proponents: (1) art as not an adaptation, but a byproduct of the evolution of human brain by natural selec-tion (Steven Pinker); (2) art as a product not of natural selection but of sexual selection (Geoffrey Miller); (3) art as an adaptation of social cohesion (Ellen Dis-sanayake) or (4) art as an adaptation of individual mental organization (John Tooby and Leda Cosmides). In the research part of the thesis I further examine one of the above men-tioned theories. Two hypothesis based on Millers theory are outlined and tested empirically in a form of personal ads. Results show, that neither more nor younger women answer to those ads which contain expression of artistic talent though. Thus they do not support Millers theory. Discussion summariz-es possible reasons for such outcome as well...
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Scientific reconstruction of the fossil marine amniots
Cettl, Karel ; Mazuch, Martin (advisor) ; Ekrt, Boris (referee)
To create a good scientific reconstruction is important artistic skills and knowledge of history painting of prehistoric animals, and also knowlages in the anatomy, zoology, palaeontology, palaeoecology and also biomechanics. Reconstruction It stands on the borderline between art and science. Our view on the fossil marine Amniotes change over time with advancing skeletal findings, and also changed a scientific reconstruction. Although the actual outputs, such as reconstruction and in particular 3D models can explain a number of new or unexplained informations about this group. A reconstruction expert can not only beautify their actions, but also enthance scientific knowledge, or even to outline a new direction for further research. Keywords: Scientific reconstruction, fossil marine amniotes, adaptation, anatomy, evolution, palaeoecology, biomechanice, 3D models, trends.
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Grammatical Evolution - Java
Bezděk, Pavel ; Kuba,, Martin (referee) ; Matoušek, Radomil (advisor)
The object of my thesis is the realization of grammatical evolution in the Java programming language for solving problems of approximation of functions and synthesis of logical circuits. The application is practical used for testing and gathering data in context of using different purpose function and parallel grammatical evolution. The data are analyzed and evaluated.
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Evoluce chování inteligentních agentů v počítačových hrách
Kadlec, Rudolf ; Holan, Tomáš (referee) ; Kudová, Petra (advisor)
In the present work we study evolution of both high-level and low-level behaviour of agents in the environment of the commercial game Unreal Tournament 2004. For optimization of high-level behaviour in Deathmatch and Capture the flag game modes a new functional architecture for description of player's behaviour was designed and implemented. Then a genetic programming technique was used to optimise it. Experiments with both standard evolution schema and with coevolution are presented. In second series of experiments the NEAT algo- rithm was used to evolve low-level missile avoidance behaviour (so called "dodging").
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Institutional prerequisites for the process of transformation of Czechoslovak economy in the 1990s
Nikodym, Lukáš ; Chalupecký, Petr (advisor) ; Johnson, Zdenka (referee)
The aim of the thesis is to analyze institutional prerequisites for the process of Czechoslovak transformation in the beginning of 1990's. Using the standard theoretical framework of institutional economics and Svetozar Pejovich's interaction thesis shows the transformation process as a part of continuous institutional evolution. The analysis of institutional environment is aimed on the activity of organizations which are seen as a source of institutional change and the pressure from the exogenous institutional framework. Long-run development of endogenous institutions shows the creation of collectivist structure of Czech society. This fact, combined with the process of creation of secondary laws, shows the inappropriately chosen strategy of transformation.
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The relationship between the EA and selected reference models
Příhoda, Stanislav ; Chlapek, Dušan (advisor) ; Buchalcevová, Alena (referee)
This thesis is focused on the competence of Enterprise Architecture, which is discussed in the introductory theoretical part as a comprehensive practice and subsequently in the relation between Enterprise Architecture and a specific aspect that is used in the EA initiatives - the reference models is discussed. In relation to the set objective the basic definitions of Enterprise Architecture are discussed and analyzed in the Chapter 2, and brief look at the description of the architectures along with the key business drivers and benefits of EA is also provided. In the Chapter 3 the content evolution of architectural disciplines is presented, particularly in terms of the scope of EA and maturity in the enterprises. A general analysis of the Enterprise Architecture is completed in the Chapter 4 where is addressed a crucial aspect of Enterprise Architecture - the architectural frameworks. The second part focuses on the key objectives of the thesis related to the reference models. The criterial evaluation system of reference models and the classification scheme for reference models are introduced as the key proposed approaches. In chapter 5.3 is also provided the structural analysis of five selected reference models that are evaluated on the basis of the predefined criteria and classified in the proposed scheme at the end. Both proposed approaches, the criterial evaluation system and the classification scheme for reference models, are in the chapter 5.6 assessed and verified by the subject matter experts in the field of EA.
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