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Benedictus XVI och liturgin

Liturgi, teologi, liturgireform, kult och skapelse, kyrkosyn, skönhet, ordinarie och extraordinarie form av liturgin

On LFSR based Stream Ciphers - analysis and design

Popular Abstract in Swedish Den här avhandlingen handlar om kryptering, strömchiffer, metoder för att analysera (knäcka) och konstruera bättre chiffer. Det finns flera olika metoder för att hemliggöra meddelanden. Det klassiska sättet är att två personer som vill kommunicera delar en hemlig nyckel som används för att både kryptera och dekryptera meddelanden. Denna metod kallas symmetrisk krypteriStream ciphers are cryptographic primitives used to ensure privacy in digital communication. In this thesis we focus on stream ciphers built using Linear Feedback Shift Registers (LFSRs). Several different stream ciphers are analysed and new attacks are presented. In addition, two new stream ciphers are presented, both based on the same design. The first attack is performed on SOBER-t16 and SOBER

Ecology of red admiral migration

The red admiral (Vanessa atalanta) is a migratory butterfly that can be found in North America, North Africa, Europe and some parts of Asia. In Europe the main part of the population spend winter in the Mediterranean region and the following spring leave this area to breed further to the north. At least one new generation is then produced in the summer region before they return to the south again

Approximating Decoding Thresholds of Punctured LDPC Code Ensembles on the AWGN Channel

In this paper, we provide an efficient way to predict iterative belief propagation (BP) decoding thresholds of randomly punctured low-density parity-check (LDPC) code ensembles on the binary-input additive white Gaussian noise channel (AWGNC), given only the BP threshold of the mother code ensemble on the binary erasure channel (BEC) and the code design rate. We show that the predictions are accur

Current fire research and design - Particularly in view of mathematical modelling

With the general trends of the international development of codes, specifications and recommendations for a fire engineering design as a background, the rapidly expanding modelling capabilities are demonstrated and exemplified with respect to the fire growth in a compartment, the fully developed compartment fire, the reaction to fire of materials, the fire spread between buildings, and the fire be