Braided convolutional codes (BCCs) are a class of spatially coupled turbo-like codes with a structure that is similar to product codes or generalized LDPC codes. We derive explicit input/output transfer functions of the component convolutional decoders for the binary erasure channel (BEC). These are then used to formulate exact density evolution equations for blockwise BCCs under belief propagatio

Methods for monitoring seepage and detecting internal erosion are essential for the safety evaluation of embankment dams. Internal erosion is one of the major reasons for embankment dam failures, and there are several tenths of thousands of large embankment dams in the world. Internal erosion is progressing inside the dam, and is sometimes difficult to detect by conventional methods. Therefore, th

An overview of the new field of Gas in Scattering Media Absorption Spectroscopy (GASMAS) is presented. The GASMAS technique combines narrow-band diode-laser spectroscopy with optical propagation in diffuse media. Whereas solids and liquids have broad absorption features, free gas in pores and cavities in the material is characterized by sharp spectral signatures. These are typically 10,000 times s

Popular Abstract in Swedish De vetenskapliga bevisen för att högt blodkolesterol ökar risken för hjärtinfarkt medförde under 80-talet stort intresse för kolesterolsänkning både inom sjukvården och bland allmänheten. Syftet med avhandlingsarbetet var att studera hur läkare och patienter uppfattade och använde kunskaperna om högt blodkolesterol, och hur läkare och receptarier värderade sin egen och Scientific evidence of the causal relationship between high blood cholesterol and risk for coronary heart disease prompted extensive professional and public interest in practical application in the 1980's. Among other things, national guidelines for lipid lowering were published in Sweden in 1988. Mass media covered the topic extensively. The aims of this study were to analyze aspects of physician

A technique based on remote measurements of surface temperature in connection to fires is presented. Pulsed ultraviolet laser radiation at 266 nm and 7 ns duration was used to excite a thermographic phosphor, Mg4FGeO6: Mn, which was adapted on the surface of the investigated material. The laser-induced emission from the phosphor was recorded. A calibration of the phosphorescence lifetime and spect

Biografisk artikel om den excentriske lektorn i tyska vid Lunds universitet, diktaren m m Heinz Hungerland (1873-1946).

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