WLANs based on IEEE 802.11 are becoming more and more popular both in commercial and residential settings. However, the very success of 802.11 may become a threat to the technology itself. Since there are only a limited number of non-overlapping channels available in the IEEE 802.11 WLAN standards, this can lead to interference among WLANs in dense areas. In this paper, we investigate the effects

This thesis deals with the theory of interrogative belief revision, a recent development in the subfield of philosophical logic known as belief revision theory. While classical belief revision theory deals with the dynamics of an agent’s beliefs, interrogative belief revision aims to describe the dynamics of the agent’s questions about the world, or research agenda, as well. Great emphasis is put

Popular Abstract in Swedish Klumpbildning då pulver tillsätts till en vätska är ett problem som många känner igen. Det kan förekomma då såsen ska redas eller när en kopp varm choklad ska blandas till från kakaopulver. Samma problem uppträder också i industrin, där många ingredienser distribueras i pulverform. Att använda torra ingredienser (pulver) inom industrin har fördelar då dessa produkter haThe formation of lumps during powder dissolution is undesirable in most cases. In a world where the use of dry products is increasing, incomplete powder dissolution and lump formation can for instance affect the color of a paint or the nutritional content of baby food. In this thesis, the phenomena governing lump formation of agglomerated spray dried dairy powders were investigated. The focus of t

Many pharmaceuticals are today produced using genetically modified microorganisms. A typical problem in monitoring and control of biotechnical processes is that many important process variables cannot be measured on-line. This has triggered much research and development concerning new sensors. Another way of addressing the problem is to improve and to extend the use of existing sensors.

Abstract in French Cet article présente les résultats d’une étude pilote sur la production des verbes réguliers en –er par des adultes suédophones débutants en français langue étrangère. L’objectif est d’une part de voir dans quels contextes les apprenants produisent des formes du type je parlE et d’autre part de voir si l’input auquel les apprenants sont exposés en favoriserait l’émergence. Le ca

Particle image velocimetry measurements are performed in a channel with periodic ribs on one wall. We investigate the flow around two different rib configurations: solid and perforated ribs with a slit. The ribs obstruct the channel by 20% of its height and are arranged 10 rib heights apart. For the perforated ribs, the slit height is 20% of the rib height, and the open-area ratio is 16%. We discu

This paper studies family commitment among fast-track professionals and explores how continued childbearing and union stability vary among high-achieving men and women. The focus is on three particular fast-track professional groups (e.g., lawyers, medical doctors and Ph.D.s), that face quite different career structures and work environments that may affect family life. The determinants of having