Non-renewable Recourses Life Cycles Modeling Aspects

Modeling Movie Life Cycles and Market Share

W examine box-office sales in the context of a market share model. This is accomplished by developing a combination of a sliding-window logit model and a gamma diffusion pattern in a hierarchical Bayes framework. We show that accounting for the full choice set available every week not only increases the fit of weekly movie sales but also leads to parameter estimates that depict a richer picture...

Energy Sources: Non Renewable and Renewable

Aspects of Collapsing Cycles

Much has been learned about string theory over the last few years by studying properties of cycles and branes in a given background geometry. Here we discuss three situations (quantum volume, attractor flows/D-brane stability, and dynamical topology change) in which cycles in a Calabi-Yau background evolve and/or degenerate in some manner, yielding various insights into aspects of quantum geome...

Modeling and Analysis of Sustainability in Product Life Cycles

This paper describes a work-in-progress, design-oriented approach to support the analysis of sustainability in product life cycles. The envisioned system provides a modeling method for structuring and collecting information about a product life cycle. By adapting analysis methods from the research field of environmental and social life cycle assessment, it further allows to explore and identify...

Life Cycles