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Structural Fire Safety - As exemplified by a Swedish Manual for Analytical Design

During the last decade, a rapid progress has been made in the development of validated analytical models for the thermal and mechanica1 behaviour of fire exposed structures and structural members. In a long-term perspective, the development now goes towards an analytical design, directly based on a natural fire exposure and specified with respect to the combustion characteristics of the fire load

Joint source-channel list sequence decoding

We evaluate the performance of list sequence (LS) maximum a posteriori probability (MAP) decoding on the additive white Gaussian noise (AWGN) channel and the fully interleaved flat Rayleigh fading channel. In particular, we focus on the frame error rate (FER) of LS-MAP decoding with genie-assisted error detection. It is demonstrated that LS-MAP decoding yields significant performance improvements

The Last Judgement in Medieval Latin Model Sermons

The article examines specimens from five Latin sermon collections that were widely used as models for sermon composition in the later Middle Ages. Four of the collections were studied in incunable editions. One of the results is that the only day of the eclesiastical year on which one finds a more or less regular discussion of the Last Judgement is the first or second Sunday of Advent. The subject

Seasonal migration determined by a trade-off between predator avoidance and growth

Migration is a common phenomenon in many organisms, terrestrial as well as aquatic, and considerable effort has been spent to understand the evolution of migratory behaviour and its consequences for population and community dynamics. In aquatic systems, studies on migration have mainly been focused on commercially important fish species, such as salmon and trout. However, seasonal mass-migrations

Supporting Business Decision-making: One Professional at a Time

This paper discusses the potential for personalized, user-owned decision-support systems. It can be readily seen that there are benefits from analysis of ‘Big Data’ that could not be attained through more traditional means, e.g. insurance and credit card fraud can be detected more readily when it is possible to analyze integrated data across multiple servers owned and controlled by separate organi

Kan man på programnivå vända negativa trender?

Ansökningstalen för Elektroteknikprogrammet, LTH, har sedan IT-kraschen 2000 minskat kraftigt. Detta fenomen är inte unikt för Lund utan kan noteras på Sveriges övriga tekniska högskolor och internationellt i västvärlden. De programansvariga har under flera år varit medvetna om problemen och har på bred front försökt att möta de nya förutsättningarna och vända trenden. Färsk statistik visar att vå

Pulsed Multipole Injection for the MAX IV Storage Rings

The MAX IV facility presently under construction will include two storage rings for the production of synchrotron radiation. The 3 GeV ring will house insertion devices for the production of x-rays while the 1.5 GeV ring will serve UV and IR users. Both rings will be operated at a constant 500 mA of stored current with top-up shots supplied by the 3.5 GeV MAX IV linac acting as a full-energy injec

Quality Requirements: Trade-off Analysis of Benefit and Cost

Would slightly better performance be significantly more valuable from a market perspective? Would significantly better performance be just slightly more expensive to implement? When dealing with quality requirements, we often end up in a difficult trade-off analysis. Aspects such as release targets, end-user experience, and business opportunities must be taken into consideration. But when is the q