Search results

Earlier we have studied the bandwidth and distance of binary codes created by Butterworth lowpass filtering of a pulse stream. Here the work is extended to 4- and 8-ary inputs (16- and 64-ary QAM). Performance reaches into a very narrow-band part of the distance-bandwidth plane. An M-algorithm decoder is tested.

Abstract not available

The growing field of biotechnology is in constant need of proteins that can function as recognition tools for separational, analytical and therapeutic purposes. Different molecular engineering approaches are applied on natural proteins in order to create variants with desired properties. This thesis is based on five original papers that deal with selection, characterisation and application of nove

In situations that require creative thinking, there is no well-known procedure for how to reach the goal, or the solution. Among other things, it is not clear how choices between outcomes are made, or when the search for a solution should terminate. The article focusses on the evaluation of solutions that are generated during the search. The general question concerns the standards according to whi

This chapter gives an introduction to how psychology has dealt with the human being as a culture influenced being. This topic is discussed also within the context of cross-cultural interaction and migration to a new country. First the debate on the meaning of culture is reviewed and discussed. Here the changing and heterogeneous nature of socially dependent understanding is emphasized. The larger

In this paper we define a many-valued semantics for hybrid logic and we give a sound and complete tableau system which is proof-theoretically well-behaved, in particular, it gives rise to a decision procedure for the logic. This shows that many-valued hybrid logics is a natural enterprise and opens up the way for future applications.

Popular Abstract in Swedish Föreliggande avhandling behandlar organisatoriska aspekter såsom organi-sationsklimat, psykosocial arbetsmiljö, situationsanpassat ledarskap samt säkerhetskultur inom den svenska flygtrafikledningen. Avhandlingen är en del av ett större forsknings- och utvecklingsprojekt ? Human Factors in Air Navigation Services (HUFA) ? som drivs i samarbe-te mellan det svenska LuftfThe air traffic control industry in Europe is under mounting pressure due to increasing air traffic and inefficient routines caused by a fragmented air space. In order to handle the demands the European Commission has launched a program entitled the Single European Sky initiative which seeks to promote a more efficient way of handling the air traffic over Europe. A reorganization of air traffic ma

We consider the problem of providing trusted computing functionality in high availability systems. We consider the case where data is required to be encrypted with a TPM protected key. For redundancy, and to facilitate high availability, the same TPM key is stored in multiple computational units, each one ready to take over if the main unit breaks down. This requires the TPM key to be migratable.