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Optical Design and Characterization of Solar Concentrators for Photovoltaics

Stationary solar energy concentrators are a promising option for decreasing the price of photovoltaic electricity. This thesis studies stationary concentrators in PV/Thermal applications. The studied systems are parabolic troughs intended for building integration. The first chapters briefly explain the optics of solar energy concentrators. The theoretical maximum concentration ratios of two and th

Blogs as Interfaces between Several Worlds A Case Study of the Swedish Academic Blogosphere

The purpose of this article is to examine the use of blogs as tools in scholarly communication practice. The article is based on a case study of the Swedish academic blogosphere. It starts with an overview of earlier research about blogs which is followed by a presentation of earlier research on scholarly communication practice. Disciplinary differences regarding the use of ICTs are considered spe

New advances in soft magnetic materials - properties of moulded flux conductors in inductors and electrical motors

A new technology has emerged the last decade, based on a new group of materials; Soft Magnetic Composites (SMC), instead of laminated steel that facilitates production of products with more integrated, smaller, lighter, less costly and highly efficient electromagnetic machines. The application of this technology is a change of paradigm regarding integrated design and energy efficiency. This articl