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An efficiency comparison of simulation methods for artificial neural network training and inverse analysis
Nezval, Michal ; Novák, Drahomír (referee) ; Lehký, David (advisor)
The thesis deals with inverse analysis which is based on combination of artificial neural network and stochastic methods. The goal is to compare an efficiency of new simulation method Hierarchical Subset Latin Hypercube Sampling to classical Monte Carlo method and standard Latin Hypercube Sampling method used for neural network training. The efficiency is compared for a different neural network structures. The inverse analysis is then applied for engineering tasks – identification of limit state fiction parameters related to pitched-roof frame and material parameters of concrete specimen subjected to three-point bending. Finally an efficiency of Hierarchical Subset Latin Hypercube method comparing to Monte Carlo and Latin Hypercube Sampling methods is discussed.
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Identification of lactic acid bacteria in probiotic products (tablets) using amplification methods
Balogová, Petra ; Trachtová, Štěpánka (referee) ; Španová, Alena (advisor)
Lactobacillus have been playing a crucial role in the fermentation processes for millenia. Their probiotic effects have been studied deeply and nowadays they are used in the production of fermented products and food adjunkt including probiotic preparations. This thesis was focused on bakteria of genus Lactobacillus in probiotic preparations (tablets). Polymerase chain reaction method (PCR) based on amplification of DNA was used to identify lactobacillus in seven probiotic preparations. As DNA matrices whole DNA recovered from tablets with the help of magnetic microparticles (P(HEMA-co¬-GMA) coated by carboxylic groups was used into a PCR mixture. Genus specific PCR products (250 bp) were detected with the help of gel electrophoresis on agaróse. DNA of genus Lactobacillus was proved in all but one product. In this product only probiotic bacteria were declared presence without family identification was proved. It contained different bakteria then bakteria of Genus Lactobacillus probably.
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Regulatory reform and systemically important banks
Svozil, Jan ; Blahová, Naděžda (advisor) ; Kaimova, Nadira (referee)
The master's thesis deals with the topic of the regulatory reform based on Basel III framework created by Basel Committee on Banking Supervision. The target of this thesis is to present tools and components of Basel III standard and focus on the identification and analysis of the key factors for classifying banks as systemically important. The issue is described from global perspective and special attention is given to European specification of regulatory rules. One part of this study is dedicated to the monitoring of the fulfillment of new regulatory rules and tools by global and European banking system. Diploma thesis includes also the chapter monitoring macroeconomic impact of regulatory reforms.
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Biometric systems
Lisý, David ; Sigmund, Tomáš (advisor) ; Čermák, Igor (referee)
This bachelor work is about biometrics and it´s application in practice. Theoretical part describes the main principles of biometrics and all of the common technologies and methods. Practical part consists of analysis and assessment of applying biometrics in Czech radio building in Prague. Practical part covers even description and comparison of potentially suitable products. That comes with choice of the best one, as a conclusion of practical part. The main goal of this work is to provide general and basic knowledge about biometrics including demonstration of analysis it´s application in practice.
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The possibility of using molecular markers to identify the commodities subject to CITES
HYNKOVÁ, Veronika
This thesis is focused primarily on the possibilities of using molecular markers to identify the commodities subject to CITES. Illegal trade with these articles is common even in the Czech Republic. Overview the most used methods could facilitate the fight against this kind of crime. Molecular markers are ideal for the identification of species and other taxonomic units, because unlike the morphological identification does not require intact specimens. DNA can be extracted from highly processed and degraded products which are commonly found on the market.
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Forensic radiology
KLÍMOVÁ, Pavlína
The topic of my thesis is forensic radiology. This field represents a very valuable and often irreplaceable tool for forensic medicine. Thanks to this development, especially in recent years, other imaging methods computer tomography and magnetic resonance imaging are receiving attention beside sciagraphy. Although this development has helped popularize this field, it often receives only brief mentions in the literature. The intent of my work is to show that forensic radiology is a rather interesting and rewarding chapter of radiology, which is definitely worth the attention.The theoretical part contains a brief summary of my analysis of scientific literature and articles on this topic. Its first chapter gives an introduction to the field of forensic medicine with a focus on methods used in the Czech Republic. Additional chapters represent the history of forensic radiology, a concise summary of the basic principles of different imaging modalities and subsequent description of their use within forensic medicine. As some of the indications are not entirely conventional in clinical practice (e.g. gunshot and shrapnel wounds), there is also a brief description of these injuries and the mechanism of their occurrence. A separate chapter is devoted to dental identification, which is a very important method, because it makes use of most of the mentioned imaging methods. The last chapter is devoted to the status of forensic radiology in the world and a summary of the various organizations founded to support this field. The practical part is divided into two sections. The first section presents the results of our survey, aiming to map the use of imaging in forensic medicine in the Czech Republic. The questionnaire was anonymous and contained a total of eleven questions. Communication took place via e-mail. Each of the 14 imaging facilities in the Czech Republic received a copy of the questionnaire, with a response rate of 65%.This research therefore covers the 9 facilities that did respond. The results of the survey were statistically analyzed and presented using tables and graphs.The second section analyzed data obtained at the Military Institute of Forensic Medicine, Central Military Hospital Military University Hospital Prague (VÚSL). The aim of this section is to demonstrate the practical use of imaging techniques in one of the facilities using forensic medicine in the Czech Republic. The data used are from 2014. The results are also analyzed and presented through tables and graphs.The results of the survey constitute valuable data about the use of imaging methods, about the personnel and technical equipment of the facilities, the use of available methods for the specific indications as well as plans for future development of imaging techniques at these facilities.Results of data collection at VÚSL focused on the number of radiological examinations in 2014, subdivided by the type of imaging method used and the extent and indication of the examination.The work posed the research question: Is sciagraphic examination the only imaging method used in the Czech Republic in forensic medicine?Based on the results, we can state that even though sciagraphy is still the leading imaging method, it is not the only one used at more than half the surveyed facilities. A third of the facilities surveyed is also considering the use of other imaging methods in the future.
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Biometric systems - possibilities and dangers
Petržilka, Jakub ; Sklenák, Vilém (advisor) ; Palovský, Radomír (referee)
This bachelor thesis is focused on biometric methods, particularly on fingerprint recognition. First part of thesis places biometric into other methods of people's identification. Identification by token and by knowledge. It also describes the beginning and evolution of biometric. The theoretical part also closely clarify working with data and different view on the biometric systems. The following part of the thesis defines the basic principles of using biometric systems, counting FAR and FRR indicators and weaknesses of biometric. Practical part is divided into two sections. First part contains process how to fool biometric systems, which are based on fingerprint scanning. The main objectives were to find out level of trust in biometric systems and research of the biometric market. Objectives were achieved through a self-questionnaire survey. Final part predicts probable future biometric development.
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Analysis and optimization of selected business processes in the concrete company
Schuma, Josef ; Hykš, Ondřej (advisor) ; Plášková, Alena (referee)
Primary objective of this thesis is identify the actual causes of the problem in the organization and subsequently create the most appropriate measures for its elimination. In the first part of thesis basic approaches which deal with changes in organizations are introduced. These approaches are Process Management, Reengineering, Six Sigma, Lean management and Root Cause Analysis. Some of the principles and methods introduce especially in the Root Cause Analysis are then applied during suggestions development in the practical part of the thesis. The second part begins with the introduction of the company and the main problem that the company faces is defined. It is thereafter followed by analysis of the current state which uses a detailed rendering of ongoing processes identifies a critical issue. Based on these findings are diagnosed possible real causes which possible individual solutions are formed. After evaluation of individual proposals that solution is selected which leads to the largest increase in efficiency. In conclusion the specifications of the selected solution are created and evaluated its contributions.
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