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This article presents an analysis of the future role of nuclear energy in Poland’s path to a low-carbon energy transition. The arguments in favor of implementing nuclear power are to be found on three levels: energy security, economic competitiveness and energy efficiency, and lastly, limited environmental impact. In the process of creating this study, the methodology in the field of security sciences was used, including its interdisciplinary approach. Theoretical methods were used, e.g., critical analysis of scientific sources and comparison of statistical data and empirical methods, e.g., document analysis, comparative analysis. The article is based on an analysis of the literature on the subject, applicable legal acts, and government strategies in the field of energy security. The article contains the results of research no. BS.21.6.13 carried out by a research team from the Pomeranian Academy in Słupsk that allowed to indicate the probable directions of transformation of the energy sector in Poland in the next decade.

The aim of this thesis is partly to create a dynamic decision model for Sandvik Machining Solutions distribution flows and partly to evaluate how the stock transfer system logic handle four specific exceptional situations. The purpose is to reduce the total costs while keeping or improving the service level. The thesis presents a total cost model and guidelines for the planning function when deciding the main supplier in the distribution. The thesis also presents a system logic evaluation of the stock transfer logic used by Sandvik Machining Solutions.

As the world’s largest automation supplier, ABB has built a value chain geared to the singular goal of achieving results for the customer. Every day ABB ships more than 1,000,000 automation products. Hence, logistics plays an important part for ABB to gain a substantial competitive edge in the global market place. The company must be able to deliver their products at shortest time possible to meet customer demands. If ABB wants to increase their market share and enhance its performance they must determine their competitive priorities. Both pricing and availability of the products are closely linked with the distribution channel. If the distribution channel is efficient then the products will be available in right quantities at the right time to customers. If the distribution channel is also cost efficient then the price of the products can be lowered. The objective of this study is to understand how the different logistics costs affect ABB’s distribution model and to find the most optimum model to support the Asia Pacific region in order to prevent a sub optimization. Today ABB have a decentralized distribution and the sales units keep their own stock to support local requirements. The total logistics costs constitute of 17.5 percent of the transfer price. A centralized distribution model will create a saving of X MUSD and lower the total logistics cost to 12.6 percent of the transfer price. In order to fulfil the purpose the author has done a broad literature review about distribution and cost models. The evaluation of today’s distribution model is based on information from a survey sent to concerned production and sales units during October 2005. The simulations for the regional distribution centre are based on parameters from the situation today. The conclusion of the thesis is that ABB will benefit from a centralized distribution model. Using a model with a regional distribution centre will not just save costs, it will also increase the service level by providing the customers with higher product availability. However, local stocking have its benefits since ABB will be close to customer location and can, if the right products are available, offer a faster delivery than a regional distribution centre. The disadvantage with a longer lead time can be avoided by using investing in new IT infrastructure or use existing technologies for order handling and use direct distribution to large end customers. Validerat; 20101217 (root)

Identification of optimum reliability levels for coastal structures is considered. A class of breakwaters is considered where no human injuries can be expected in cases of failure. The optimum reliability level is identified by minimizing the total costs over the service life of the structure, including building costs, maintenance and repair costs, downtime costs and decommission costs. Different formulations are considered. Stochastic models are presented for the main failure modes for rubble mound breakwaters without superstructures, typically used for outer protection of basins. The influence on the minimumcost reliability levels is investigated for different values of the real rate of interest, the service lifetime, the downtime costs due to malfunction and the decommission costs. Identification of optimum reliability levels for coastal structures is considered. A class of breakwaters is considered where no human injuries can be expected in cases of failure. The optimum reliability level is identified by minimizing the total costs over the service life of the structure, including building costs, maintenance and repair costs, downtime costs and decommission costs. Different formulations are considered. Stochastic models are presented for the main failure modes for rubble mound breakwaters without superstructures, typically used for outer protection of basins. The influence on the minimumcost reliability levels is investigated for different values of the real rate of interest, the service lifetime, the downtime costs due to malfunction and the decommission costs.

Identification of optimum reliability levels for coastal structures is considered. A class of breakwaters is considered where no human injuries can be expected in cases of failure. The optimum reliability level is identified by minimizing the total costs over the service life of the structure, including building costs, maintenance and repair costs, downtime costs and decommission costs. Different formulations are considered. Stochastic models are presented for the main failure modes for rubble mound breakwaters without superstructures, typically used for outer protection of basins. The influence on the minimumcost reliability levels is investigated for different values of the real rate of interest, the service lifetime, the downtime costs due to malfunction and the decommission costs.