|
Evaluation of Changes in Water Regime Caused by Long-term Development of Vegetation Cover
Chlumecký, M. ; Tesař, Miroslav ; Buchtele, Josef
Long monitoring of air temperature and precipitation for three catchments with up to 100 years series has been used as the input for the modelling of rainfall-runoff process and for the re-assessments of the evapotranspiration demand (ET.sub.demand./sub.). The resulting oscillations and the random changes of vegetation cover have been pursued as the indication of fluctuations also in the evapotranspiration. The intention is to appraise this complicated time series as the long-term process. The modified implementation of the conceptual model SAC-SMA enables the quicker simulation and facilitates also the conditions for automatic calibration of parameters in the used model; separately for individual, i.e. partial time intervals, namely with the diverse expected evapotranspiration. That process is to be identified simultaneously with the optimal parameters of the mode; the resulting actual evapotranspiration (ET.sub.act./sub.) is then represented as the modelling outputs, as such values could be hardly gained as measured or computed values, e. g. from other meteo-observations.
|
|
The migration crisis in Europe and subsequent implications for Swedish welfare state
Lacková, Dominika ; Bič, Josef (advisor) ; Němcová, Ingeborg (referee)
In general, migration is one of the most important global challenges. The topic of regulating migration flows came to the fore in relation to the current Europe's migration, or more precisely, refugee crisis. It has been described as the most massive migrant's crisis since the WW2. Unprecedented influx of immigrants and refugees in 2015 resulted in that even the best prepared European countries, such as Sweden, have reached a tipping point with regard to respect EU standards related to reception and processing of asylum applications. Master thesis covered two main analyses - the relevance of the refugee crisis in the EU in regards to the Swedish welfare state and the subsequent implications arising from the refugee crisis for the Swedish welfare state.
|
|
Potential of IoT in Smart City
Pavlíček, Tomáš ; Gála, Libor (advisor) ; Basl, Josef (referee)
The aim of this masters thesis is to identify, in which phase of adoption of Internet of Things (IoT) application areas of concept Smart City are nowadays Czech regional cities, what is their outlook to 2025 and also identify in which dimensions of concept Smart city, supported by IoT technologies, perceive Czech regional cities the greatest potential. Based on information obtained from the studied materials, the concept of Internet of Things (IoT) is described, along with a detailed description of one of its application area, namely Smart City. This area is further divided into specific dimensions, that cover specific application areas which can, through internet technology, support things in a special way. With these insights, the questionnaire (built on identified IoT application areas of smart city) was developed. Thesis should be beneficial for all towns in the Czech Republic, because it provides a comprehensive view of individual IoT application areas of concept Smart City including information on which of these IoT application areas are currently focusing regional cities, and on which they want to focus to the future. On the other hand, the survey results could also be beneficial for commercial entities, which focus on IoT implementation in cities. These entities will be able to recognise which IoT products are currently best for cities.
|
|
Analysis and design of intranet structure
Novák, Miroslav ; Pour, Jan (advisor) ; Šedivá, Zuzana (referee)
Nowadays, Intranet is an inseparable part of every company, notwithstanding of their size or field of activity. Both, in my work and personal life, I often come across different intranets that usually do not get a positive response. But they usually have the same source of the problem, which is based on their wrong structure. This is why is chose this topic for my thesis. The goal of my thesis is to perform an analysis of an existing intranet of a particular company and subsequently create a design of the intranet new structure using the card-sorting method. This thesis primarily represents a generalized method of how to proceed during such realization and which areas to look into. Theoretical part of this thesis covers the topics of information architecture and also the term intranet itself, where the most frequent issues I came across in the intranets are pointed out. Practical part covers the analysis itself, where I focus on the structure of the existing intranet, categorization of its content, connections with other systems, customization, permission management, surveys of contentment, and intranet usage. The analysis is performed manually by scanning through the existing intranet of the company, since other methods or approaches could not be applied due to technical limitations or insufficient permis-sions. Based on the outputs of the analysis, web categorizations and the card-sorting method, a design of a structure of the new intranet has been proposed. The design itself is a demonstration of the method how to approach the new intranet design.
|
|
Možnosti využití sociálních sítí pro podporu podnikání v autoservisech
Mischaniuk, Mykhailo ; Molnár, Zdeněk (advisor) ; Gála, Libor (referee)
The diploma thesis deals with the problem of using social networks in the field of car repair services. The primary aim is to provide the recommendations for businesses in a structured way on how to better utilize these networks to get better competitiveness. This work is divided into three parts. The first theoretical part deals with basic description of networks and their statistics. This part also covers some basic tools that we can use to analyze and maintain social network platforms. The second analytical part deals with competitive analysis in car repair services and gives an overview of the most popular Runet social network platforms. The third practical part provides structured view on all important aspects of social platform maintenance and behaviour. In this section, you can find the description of various views and the recommendations I give to the specific car repair service.
|
|
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.
|
|
Míry podobnosti pro nominální data v hierarchickém shlukování
Šulc, Zdeněk ; Řezanková, Hana (advisor) ; Šimůnek, Milan (referee) ; Žambochová, Marta (referee)
This dissertation thesis deals with similarity measures for nominal data in hierarchical clustering, which can cope with variables with more than two categories, and which aspire to replace the simple matching approach standardly used in this area. These similarity measures take into account additional characteristics of a dataset, such as frequency distribution of categories or number of categories of a given variable. The thesis recognizes three main aims. The first one is an examination and clustering performance evaluation of selected similarity measures for nominal data in hierarchical clustering of objects and variables. To achieve this goal, four experiments dealing both with the object and variable clustering were performed. They examine the clustering quality of the examined similarity measures for nominal data in comparison with the commonly used similarity measures using a binary transformation, and moreover, with several alternative methods for nominal data clustering. The comparison and evaluation are performed on real and generated datasets. Outputs of these experiments lead to knowledge, which similarity measures can generally be used, which ones perform well in a particular situation, and which ones are not recommended to use for an object or variable clustering. The second aim is to propose a theory-based similarity measure, evaluate its properties, and compare it with the other examined similarity measures. Based on this aim, two novel similarity measures, Variable Entropy and Variable Mutability are proposed; especially, the former one performs very well in datasets with a lower number of variables. The third aim of this thesis is to provide a convenient software implementation based on the examined similarity measures for nominal data, which covers the whole clustering process from a computation of a proximity matrix to evaluation of resulting clusters. This goal was also achieved by creating the nomclust package for the software R, which covers this issue, and which is freely available.
|
|
Analysis of Reporting in Business and its Technological Coverage by Microsoft BI
Lučan, Martin ; Pour, Jan (advisor) ; Pavlíčková, Jarmila (referee)
This master thesis deals with an analysis of reporting in business and its technological coverage by Microsoft Business Intelligence portfolio. The main objective of this work is to analyze the individual organization's requirements on reporting and coverage options. This work can serve as a tool for implementation of reporting in a company or for increasing the efficiency of reporting. The first part is theoretical. It deals with Business Intelligence as an environment for reporting. It also defines the basic concepts. The next part covers the area of reporting. This section provides an insight into the history, definition of outcomes and detailed classification of reporting from different perspectives. Furthermore, the definition of users reporting and the reporting standards in companies is also covered. At the end of this chapter, there is the definition of the benefits of reporting for companies. The main part of this master thesis is an analysis of the requirements for reporting in companies. The chapter defines five key perspectives which are described in a greater detail. The methods how companies should methodically approach these requirements are also discussed. The chapter further looks at the requirements for a concrete report. An output of this chapter is an effective template for gathering requirements for a specific report. The last chapter focuses on reporting portfolio analysis of Microsoft and defines the concept of Microsoft. It provides detailed information about reporting products that Microsoft offers. An analyses and a mapping of the individual characteristics of the products and the requirements is defined in this thesis.
|
|
Effect of snowpack on runoff generation during rain on snow event.
Juras, Roman ; Máca, Petr (advisor) ; Ladislav , Ladislav (referee)
During a winter season, when snow covers the watershed, the frequency of rain-on-snow (ROS) events is still raising. ROS can cause severe natural hazards like floods or wet avalanches. Prediction of ROS effects is linked to better understanding of snowpack runoff dynamics and its composition. Deploying rainfall simulation together with hydrological tracers was tested as a convenient tool for this purpose. Overall 18 sprinkling experiments were conducted on snow featuring different initial conditions in mountainous regions over middle and western Europe.
Dye tracer brilliant blue (FCF) was used for flow regime determination, because it enables to visualise preferential paths and layers interface. Snowpack runoff composition was assessed by hydrograph separation method, which provided appropriate results with acceptable uncertainty. It was not possible to use concurrently these two techniques because of technical reasons, however it would extend our gained knowledge. Snowmelt water amount in the snowpack runoff was estimated by energy balance (EB) equation, which is very efficient but quality inputs demanding. This was also the reason, why EB was deployed within only single experiment.
Timing of snowpack runoff onset decrease mainly with the rain intensity. Initial snowpack properties like bulk density or wetness are less important for time of runoff generation compared to the rain intensity. On the other het when same rain intensity was applied, non-ripe snowpack featuring less bulk density created runoff faster than the ripe snowpack featuring higher bulk density. Snowpack runoff magnitude mainly depends on the snowpack initial saturation. Ripe snowpack with higher saturation enabled to generate higher cumulative runoff where contributed by max 50 %. In contrary, rainwater travelled through the non-ripe snowpack relatively fast and contributed runoff by approx. 80 %.
Runoff prediction was tested by deploying Richards equation included in SNOWPACK model. The model was modified using a dual-domain approach to better simulate snowpack runoff under preferential flow conditions. Presented approach demonstrated an improvement in all simulated aspects compared to the more traditional method when only matrix flow is considered.
|
|
DCTOOL-A3
Bakule, Lubomír ; Papík, Martin ; Rehák, Branislav
DCTOOL-A3 is a documentation of Matlab routines developed for the design of decentralized control of large scale complex systems. The current beta version covers three areas as follows:\nReport 4.1 deals with the event-triggered control design for unstructured uncertain systems. Both non-quantized and quantized feedback is analyzed. The results are given in terms of linear matrix inequalities (LMIs). Logarithmic quantizer is used. Numerical example illustrates the effectiveness of the presented results.\nReport 4.2 presents a new decentralized overlapping wireless control design with a switched communication protocol. The method is applied by simulations on the 20-story building structure including the test of robustness of the methods against sensor failures and network node dropouts of a digital network.\nReport 4.3 presents the construction of a new decentralized wireless controller and a set of heuristic algorithms for evaluation of packet dropouts, sensor faults and actuator faults. The digital network operates at the standard frequency used in well-known widely-used industrial protocols. The results are tested at the Benchmark model decomposed into two disjoint substructures. The results are published. Thus, the details are omitted here.
|
guest ::
