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Fire Protection of Underground Transportation Systems: A Decision Support Tool for Designers and Rescue Services

The increasing trend to build both more and longer underground transportation systems, e.g., road and rail tunnels, and the special characteristics of these facilities, introduces new problem areas to both fire safety designers and fire rescue services. TUFT, a simple computer model, has therefore been developed partly to aid fire safety designers in the early stages of the fire safety design proc

Mass media: Introduction and schools of thought

This short encyclopedia article looks at the nomenclature and organizing logics of the field of mass media research. Four 'schools' of research are highlighted: the mainstream social science legacy, the various critical traditions, the culturalist perspective, and policy horizons.

An Approximate Auction

This paper presents an auction procedure which is of particular interest when short execution times are of importance. It is based on a method for approximating the bidders' preferences over two types of items when complementarity between the two may exist. In particular, linear approximations of the bidders' indifference curves are made. The resulting approximated preference relation is shown to

Polarization portraits of lightharvesting antennas: from single molecule spectroscopy to imaging

Popular Abstract in English Plants, algae and some bacteria are able to harvest solar energy to run chemical reactions by a complex process known as photosynthesis. Crucial molecules in this process are the so-called light-harvesting antennas. These antennas contain large amounts of pigments, such as chlorophyll, that are used for solar light absorption. Moreover, these pigments are also involved Multichromophoric systems are very important in photosynthesis and any device that uses solar energy for its operation. This is because multichromophoric light-harvesting antennas are responsible for the absorption of light and the efficient transfer of the absorbed energy toward distinct places where it is to be used or stored. Over the last 10 years polarization sensitive single molecule methods