Much research has been undertaken to gain insight into business alignment of IT. This alignment basically aims to improve a firm’s performance by an improved harmonization of the business function and the IT function within a firm. The thesis discusses previous approaches and constructs an overall framework, which a potential approach needs to fit in. Being in a highly regulated industry, for airports there is little space left to increase revenues. However, the retailing business has proven to be an area that may contribute towards higher income for airport operators. Consequently, airport management should focus on supporting this business segment. Nevertheless, it needs to be taken into account that smooth airport operations are a precondition for successful retailing business at an airport. Applying the concept of information intensity, the processes of gate allocation and airport retailing have been determined to appraise the potential that may be realized upon (improved) synchronization of the two. It has been found that the lever is largest in the planning phase (i.e. prior to operations), and thus support by means of information technology (for information distribution and improved planning) may help to enable an improved overall retail performance. In order to determine potential variables, which might influence the output, a process decomposition has been conducted along with the development of an appropriate information model. The derived research model has been tested in different scenarios. For this purpose an adequate gate allocation algorithm has been developed and implemented in a purposewritten piece of software. To calibrate the model, actual data (several hundred thousand data items from Frankfurt Airport) from two flight plan seasons has been used. Key findings: The results show that under the conditions described it seems feasible to increase retail sales in the magnitude of 9% to 21%. The most influential factors (besides the constraining rule set and a retail area’s specific performance) proved to be a flight’s minimum and maximum time at a gate as well as its buffer time at gate. However, as some of the preconditions may not be accepted by airport management or national regulators, the results may be taken as an indication for cost incurred, in case the suggested approach is not considered. The transferability to other airport business models and limitations of the research approach are discussed at the end along with suggestions for future areas of research.

Este trabalho é um estudo da aplicação de um sistema que utiliza a cogeração para hotéis localizados na cidade de Porto Alegre, RS, Brasil. Foi analisada a implantação desse tipo de sistema, também chamado de CHP (Combined Heat and Power), de um ponto de vista econômico e energético. A questão econômica foi determinada pela viabilidade através de métodos de análise quantitativa, neste caso, dando enfoque ao tempo de retorno do investimento. Para a análise energética foi realizado o estudo dos consumos e demandas anuais da operação do prédio através da ferramenta de simulação térmo-energética de edificações. O software escolhido foi o EnergyPlus. Essas análises, energéticas e econômicas, foram realizadas através de uma comparação entre o hotel sem o sistema de CHP e o hotel com o sistema de CHP. O hotel hipotético simulado foi definido através de um levantamento de informações a respeito do desempenho energético de hotéis que funcionam em Porto Alegre. Além dos estudos energéticos e econômicos, foram realizadas variações em parâmetros do hotel para tentar abranger uma série de possíveis cenários e verificar suas viabilidades econômicas. Foi visto que a cogeração pode trazer redução de custo operacional mesmo não tendo um menor consumo energético anual. Em alguns cenários o tempo de retorno do investimento apresentou valor abaixo dos seis anos, sendo considerado como uma boa opção de investimento. / This work is a study of the application of a CHP (Combined Heat and Power) system in hotels built in the city of Porto Alegre, RS, Brazil. This system was analyzed from an economic and energetic point of view. The economic matter on its viability perspective was determined through quantitative methods, in this case, with the focus on the time frame for the investment's return. For the energetic analysis, a annual energy consumption and demand study was performed utilizing a whole-building energy model with computer simulation. The chosen software was EnergyPlus. The analyses, energetic and economic, were performed through a comparison between the hotel without the CHP system and with the CHP system. The hypothetic simulated hotel was determined by a data survey on the energetic performance of hotels build in Porto Alegre. In addition to the energetic and economic studies, some parametric variations to the hotel were made to include a series of possible scenarios and check their economic viability. It was observed that the CHP can provide some operational cost reductions even without presenting a lower annual energetic consumption. In some scenarios, the time to return the investment showed figures lower than six years, being considered a good investment option.

Dissertation work comes with a summary of logistics evolution in the sphere of Supply Chain Management and focuses readers attention on the processes inside of supply chain. However dissertaion work is not just a huge methodological part, it also comes with an optimization part. Reader meets imaginary company trying to optimize a part of its distribution process by using modification of distribution technology "Hub and Spoke". Optimization computational procedure also consist of Traveller Salesman Problem (TSP). Fictional data for three days of testing where prepared by using MS Excel function of random numbers. For longer testing period dissertation work uses simulation technology represented by SIMPROCESS software.

This thesis researches dynamics in projects managed by Scrumban. It describes the creation of system dynamics simulation model, which provides insight into the relationships between system components. It also presents data, that are further analysed with the purpose of discovering patterns in behaviour of project attributes in time, such as size of the product backlog, work in progress etc. The patterns are discovered and recommended parameter settings are provided so that there is no idle time or higher defect rate than necessary. Soft factors are also included in the model, namely the development team and the customer, which have a grand effect to the model behaviour. Managment flight simulator is developed, which provides the option to experiment even to users, who are not familiar with system dynamics modelling. The thesis consists of two parts. In the first part, necessary theory of project management, system dynamics and their fusion is provided. The second part is dedicated to the process of creating the simulation model, dynamic hypothesis formulation, mathematical modelling, testing and data analysis. In consideration of the analysis results, recommended policies are provided. Last pages of the thesis describe the user interface of management flight simulator and it's controls.

The thesis includes the basic principles of lead-acid, NiCd, NiMH and Li-Ion batteries. There is a description of their features and phenomena that processes in the batteries during charging and discharging. The most important part is devoted to dynamic models of these types of batteries, the parameters that are necessary for their modeling, and testing of absolute error models. Further, the model in Matlab was created which allows the simulation of the GRID-OFF photovoltaic system using the battery model.

The diploma thesis is focused on verifying the success of prediction models mean monthly flows for strategy control storage function of water management system. The success of prediction models is tested during three different periods. To determine the predicted inflows into the reservoirs is applied to the generator artificial flow series LTMA using the Monte Carlo method and the classical model of neuron networks. During the solution is applying the principles of adaptive control. The adaptive control is compared with simple control for improved outflow.

This  thesis  deals  with  production  of  three-dimensional  animated  model. Thesis is about model of billiard table and visualization of balls motion on its surface. Using simulation methods to solve the problem of balls motion is the goal of this work. This thesis contains summary of physical phenomena which describe the ball motion. There are also animation and simulation techniques which are used to create a model involved in this work. This thesis also deals with description of software, which can be used to create a three-dimensional model, animation and define user interaction. The second part of thesis describes how simulation program and visualization application was made. In the end, there are charts which describe ball behaviour involved in this work.

No description available.

[pt] A tecnologia flex fuel foi desenvolvida pelo centro de pesquisas da Bosch do Brasil e lançado comercialmente no país em 2003. O conceito desse automóvel originou-se da possibilidade do carro utilizar como combustível álcool, gasolina ou qualquer proporção de mistura entre os dois em um mesmo tanque de combustível. Essa flexibilidade na escolha do combustível do carro flex fuel e a existência de incerteza com relação ao preço do álcool e da gasolina, agregam valor ao automóvel, pois o consumidor pode escolher o combustível mais barato toda vez que abastece o veículo. Este trabalho busca valorar essa vantagem do carro flex fuel em relação ao automóvel movido apenas à gasolina através da avaliação por Opções Reais, utilizando o Método de Simulação com Fluxos de Caixa Dinâmicos, e comparar as vantagens da Simulação de Monte Carlo em relação ao modelo de Árvore de Decisão Quadrinomial. Os resultados indicam que a opção inerente ao carro flex fuel é relevante para a decisão de adquirir um veiculo flex fuel e pode representar de 5% a 10% do seu valor. / [en] The flex fuel car technology was developed by the Bosch Research Center in Brazil, and the firs model was launched in the market in 2003. The concept of flex fuel automobile derived from the possibility of using ethanol, gas or any proportion of this mixture in a fuel tank. The fuel flexibility and its price volatility add value to the vehicle because the consumer has the option to choose the cheapest fuel each time he needs it. We perform the valuation of the flex fuel automobile using Real Options Approach to Dynamic Cash Flow Simulation. The results show that the value of the flex fuel option is significant and can represent from 5% to 10% of the price of the automobile. We also compare this method to the quadrinomial decision tree model and show that while both provide similar results, the simulation method is similar and less computationally intensive.

Univ., Diss.--Kassel, 2007.