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Aspect Oriented Programming
Jonáš, Martin ; Janoušek, Vladimír (referee) ; Kočí, Radek (advisor)
This thesis discuss technique of Aspect Oriented Programming (AOP). Thesis contains basic informations about AOP philosophy, principles and short overview of AOP tools. Thesis also contains practic demonstrations of using AOP for simple examples and complex aplication using AspectJ tool.
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Use of oxidation processes (AOP) for removal of micropolutants
Stříteský, Luboš ; Pešoutová,, Radka (referee) ; Hlavínek, Petr (advisor)
This thesis deals with advanced oxidation processes (AOPs) and it’s use for removal of micropollutants from wastewater. The first chapter explains the need AOPs, water quality, pollution and substances that are present in the water. Further, the first chapter outlines approach of the current legislation to micropollutants. The second chapter explains the theory and principle of operation of AOPs. This chapter is divided into two sections. The first section describes AOPs, which were tested at selected WWTP. In the second section, there are described some other AOPs. The third chapter is a literature retrieval of AOPs dealing with the removal of micropollutants. This chapter is focused on the removal of hormones by AOPs using ozone-based AOPs. The fourth chapter describes the actual testing of selected AOPs. The chapter describes selected WWTP, pilot-scale AOP unit and test results. In the last chapter there is designed and described full-scale AOP tertiary unit for removing of micropollutants. The last chapter also contains economic analysis of the proposed tertiary unit.
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Automated Arrangement and Coordination of Processes on the Java Platform
Janyš, Martin ; Smrčka, Aleš (referee) ; Kočí, Radek (advisor)
The subject of this thesis is the topic of the resilience and stability of web applications with a focus on the Java platform. Many existing information systems based not only upon this platform face problems that disturb the stability of applications. These problems may result in the failure, downtime and, consequently, financial or business loss due to the malfunction of the whole service. The aim is to show the problems that the applications face in a production environment and to show how to address them proactively. A possible partial solution to increase the stability may be an appropriate configuration of JVM (Java Virtual Machine), an analysis and corrections of detected errors, or a technique called Sandboxing to increase the stability, which this thesis deals with. Using this technique, it is possible to divide the application into separate parts that cannot influence each other. This prevents the propagation of errors among the parts of the application and thereby increases the stability of the entire application. The target applications include the Java applications made with the help of Spring framework. The Sanboxing technique can be implemented into the applications built this way by means of suitable configuration, which ensures that the application run will be divided into specified parts that will be automatically tested and possibly restarted. The application then recovers itself in the affected areas without a complete failure. The project is called Java Capsules.
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Thermal lens spectrometric detection of MRI contrast agents in the process of their photocatalytic degradation
Petruľák, Michal ; Řezáčová, Veronika (referee) ; Franko, Mladen (advisor)
Diplomová práce je zaměřena na studium degradace kontrastních látek pro magnetickou rezonanci. Tyto látky se dnes ve velké míře používají v oblastech s rozvinutým zdravotnictvím. Můžeme je najít v odtocích z čistíren odpadních vod, což svědčí o tom, že běžné stupně čištění odpadních vod nejsou dostatečně efektivní pro jejich odstranění. O degradaci kontrastních látek na bázi gadolinia je jen málo informací. Fotokatalytický rozklad za pomoci oxidu titaničitého a také ozonace vybrané kontrastní látky gadobutrolu, byl sledován pomocí měření celkového organického uhlíku, mikroskopie termálních čoček a spektrofotometrie.
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Organic dye decomposition by AOP´s methods
Olexová, Barbora ; Dzik, Petr (referee) ; Kozáková, Zdenka (advisor)
This diploma thesis is focused on the study of the influence of advanced oxidation processes on degradation of organic dyes. The field of AOP – very effective physically-chemical methods of wastewater treatment – includes application of strong oxidation agents, UV and ionizing radiation and electrical discharges. For this thesis, two of these methods were chosen – the application of oxidation agent (ozone) and UV radiation. Along with electrolysis, which is mentioned rather marginally in this thesis (it is the subject of the previous thesis), these phenomena are products of electrical discharge in water, where they participate in the processes of degradation in a different way. For all measurement series, two direct azo dyes were chosen as model substances – C.I. Direct Blue 106 and C.I. Direct Red 79. The ozonizer, in which either oxygen or synthetic or technical air were loaded as carrier gases, was used for degradation of dyes by ozone. The generated ozone was loaded into the bubbling vessel with dye solution of different initial concentration (10–130 mg.dm-3), which was followed by other bubbling vessel with KI solution for the next analytical determination of the amount of generated ozone. The other parameters changed were the gas flow (1–2 dm3.min-1), ozonizer output (minimal and maximal), type of dye, pH value of the solution (neutral or acid) and additional electrolyte (NaCl, Na2SO4 or any). The reactor for the study of the influence of UV radiation on degradation of dyes was an UV sterilizer into which the equivalent volume of dye solution was added. The possibilities of experimental settings were limited and only the type of dye, an additional electrolyte and pH value of the dye solution were adjusted (as in the case of ozone). Several series of samples were measured with various input conditions which more or less influenced the degradation of investigated dyes in this experiment. It was found that for both used methods the Direct Blue 106 dye was more degradable (with significantly better results for ozone than for UV radiation). The degradation of Direct Red 79 dye proceeded only by ozone treatment, in the case of the application of UV radiation no degradation occurred. By investigation of the influence of initial concentration of dye on its degradation, it was confirmed that with the initial concentration enhancement the final concentration rises as well, whereas in low concentrations (10–50 mg.dm-3) the initial concentration has no effect. The addition of an electrolyte had an accelerating effect on dye degradation in both methods (NaCl and also Na2SO4 showed similar results though the degradation proceeded in different ways). The addition of HCl accelerated the degradation only in the case of UV radiation; during the application of ozone the pH level of the system did not have any influence on the degradation. Oxygen and synthetic air had the strongest effect on ozone degradation (comparable results); in the case of technical air the final dye concentration was higher up to 30 %. The gas flow of 1.5 dm3.min-1 was stated as optimal with the ozonizer output 30 W (maximal). At minimal power the ozonizer produced very low amount of ozone.
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Thermal lens spectrometric detection of MRI contrast agents in the process of their photocatalytic degradation
Petruľák, Michal ; Řezáčová, Veronika (referee) ; Franko, Mladen (advisor)
Diplomová práce je zaměřena na studium degradace kontrastních látek pro magnetickou rezonanci. Tyto látky se dnes ve velké míře používají v oblastech s rozvinutým zdravotnictvím. Můžeme je najít v odtocích z čistíren odpadních vod, což svědčí o tom, že běžné stupně čištění odpadních vod nejsou dostatečně efektivní pro jejich odstranění. O degradaci kontrastních látek na bázi gadolinia je jen málo informací. Fotokatalytický rozklad za pomoci oxidu titaničitého a také ozonace vybrané kontrastní látky gadobutrolu, byl sledován pomocí měření celkového organického uhlíku, mikroskopie termálních čoček a spektrofotometrie.
|
|
|
Aspect Oriented Programming
Jonáš, Martin ; Janoušek, Vladimír (referee) ; Kočí, Radek (advisor)
This thesis discuss technique of Aspect Oriented Programming (AOP). Thesis contains basic informations about AOP philosophy, principles and short overview of AOP tools. Thesis also contains practic demonstrations of using AOP for simple examples and complex aplication using AspectJ tool.
|
|
|
Automated Arrangement and Coordination of Processes on the Java Platform
Janyš, Martin ; Smrčka, Aleš (referee) ; Kočí, Radek (advisor)
The subject of this thesis is the topic of the resilience and stability of web applications with a focus on the Java platform. Many existing information systems based not only upon this platform face problems that disturb the stability of applications. These problems may result in the failure, downtime and, consequently, financial or business loss due to the malfunction of the whole service. The aim is to show the problems that the applications face in a production environment and to show how to address them proactively. A possible partial solution to increase the stability may be an appropriate configuration of JVM (Java Virtual Machine), an analysis and corrections of detected errors, or a technique called Sandboxing to increase the stability, which this thesis deals with. Using this technique, it is possible to divide the application into separate parts that cannot influence each other. This prevents the propagation of errors among the parts of the application and thereby increases the stability of the entire application. The target applications include the Java applications made with the help of Spring framework. The Sanboxing technique can be implemented into the applications built this way by means of suitable configuration, which ensures that the application run will be divided into specified parts that will be automatically tested and possibly restarted. The application then recovers itself in the affected areas without a complete failure. The project is called Java Capsules.
|
|
|
Use of oxidation processes (AOP) for removal of micropolutants
Stříteský, Luboš ; Pešoutová,, Radka (referee) ; Hlavínek, Petr (advisor)
This thesis deals with advanced oxidation processes (AOPs) and it’s use for removal of micropollutants from wastewater. The first chapter explains the need AOPs, water quality, pollution and substances that are present in the water. Further, the first chapter outlines approach of the current legislation to micropollutants. The second chapter explains the theory and principle of operation of AOPs. This chapter is divided into two sections. The first section describes AOPs, which were tested at selected WWTP. In the second section, there are described some other AOPs. The third chapter is a literature retrieval of AOPs dealing with the removal of micropollutants. This chapter is focused on the removal of hormones by AOPs using ozone-based AOPs. The fourth chapter describes the actual testing of selected AOPs. The chapter describes selected WWTP, pilot-scale AOP unit and test results. In the last chapter there is designed and described full-scale AOP tertiary unit for removing of micropollutants. The last chapter also contains economic analysis of the proposed tertiary unit.
|
|
|
Organic dye decomposition by AOP´s methods
Olexová, Barbora ; Dzik, Petr (referee) ; Kozáková, Zdenka (advisor)
This diploma thesis is focused on the study of the influence of advanced oxidation processes on degradation of organic dyes. The field of AOP – very effective physically-chemical methods of wastewater treatment – includes application of strong oxidation agents, UV and ionizing radiation and electrical discharges. For this thesis, two of these methods were chosen – the application of oxidation agent (ozone) and UV radiation. Along with electrolysis, which is mentioned rather marginally in this thesis (it is the subject of the previous thesis), these phenomena are products of electrical discharge in water, where they participate in the processes of degradation in a different way. For all measurement series, two direct azo dyes were chosen as model substances – C.I. Direct Blue 106 and C.I. Direct Red 79. The ozonizer, in which either oxygen or synthetic or technical air were loaded as carrier gases, was used for degradation of dyes by ozone. The generated ozone was loaded into the bubbling vessel with dye solution of different initial concentration (10–130 mg.dm-3), which was followed by other bubbling vessel with KI solution for the next analytical determination of the amount of generated ozone. The other parameters changed were the gas flow (1–2 dm3.min-1), ozonizer output (minimal and maximal), type of dye, pH value of the solution (neutral or acid) and additional electrolyte (NaCl, Na2SO4 or any). The reactor for the study of the influence of UV radiation on degradation of dyes was an UV sterilizer into which the equivalent volume of dye solution was added. The possibilities of experimental settings were limited and only the type of dye, an additional electrolyte and pH value of the dye solution were adjusted (as in the case of ozone). Several series of samples were measured with various input conditions which more or less influenced the degradation of investigated dyes in this experiment. It was found that for both used methods the Direct Blue 106 dye was more degradable (with significantly better results for ozone than for UV radiation). The degradation of Direct Red 79 dye proceeded only by ozone treatment, in the case of the application of UV radiation no degradation occurred. By investigation of the influence of initial concentration of dye on its degradation, it was confirmed that with the initial concentration enhancement the final concentration rises as well, whereas in low concentrations (10–50 mg.dm-3) the initial concentration has no effect. The addition of an electrolyte had an accelerating effect on dye degradation in both methods (NaCl and also Na2SO4 showed similar results though the degradation proceeded in different ways). The addition of HCl accelerated the degradation only in the case of UV radiation; during the application of ozone the pH level of the system did not have any influence on the degradation. Oxygen and synthetic air had the strongest effect on ozone degradation (comparable results); in the case of technical air the final dye concentration was higher up to 30 %. The gas flow of 1.5 dm3.min-1 was stated as optimal with the ozonizer output 30 W (maximal). At minimal power the ozonizer produced very low amount of ozone.
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