Popular Abstract in Swedish Andelen vindkraft i elnätet har ständigt ökat under de senaste åren. I många länder utgör idag vindkraften en betydande del av den totala elproduktionen. Detta gäller även vid störningar då vindkraftverk – precis som vattenkraftverk och kärnkraftverk – måste fortsätta bidra till balansen mellan elproduktion och förbrukning. De nya reglerna för anslutning av vindkraft tiSynchronous generators have always been the dominant generation type in the grid. This fact affected both planning and operation of power systems. With the fast increase of wind power share in the grid in the last decade, the situation is changing. In some countries wind power represents already a consistent amount of the total generation. Wind turbines can be classified as non-synchronous generat

The planning of facilities to improve the environment is often carried through in the form of locally based construction projects. These projects can be complex, involving a variety of issues and a number of different actors from both the public and private sectors. By drawing on previous research on project planning, an analytical model for analysing the issues connected with the planning and imp

We consider load balancing on a network. Servers of limited bandwidth move a single commodity through a network of buffers (or queues) while external random processes generate and consume this commodity. Our contribution is a distributed algorithm for regulating the backlogs of these queues to a given reference while balancing the mean flow in the network. We formulate this as a fluid buffer regu

Popular Abstract in Swedish Vårt immunförsvar arbetar konstant med att skydda kroppen från olika föremål, t. ex. bakterier, virus, gifter och cancertumörer, som kan orsaka skada eller sjukdom. För att kunna försvara kroppen mot sådana föremål så har immunförsvaret tillgång till flera, oerhört effektiva, vapen. Det viktigt att immunförsvaret känner igen, och endast angriper, skadliga föremål, så atCD40 is a cell surface receptor of pivotal importance that is expressed on several of the cells in the immune system. It is critical for many important events, such as T cell dependent B cell activation, isotype switching, somatic mutation and generation of B cell memory. The central role of CD40 in the immune system makes it an ideal target for antibody based immunotherapy. This led us to charact

Om några år är streckkoden ett gammalmodigt sätt att märka produkter. Med ny teknik behöver du inte stå i kö i affären. Världens största detaljhandelskedjor satsar intensivt på att märka sina varor på ett nytt smartare sätt.

About one in ten persons is born with, or develops, a physical, sensory or mental impairment. When this stops a person from participating in normal life, it becomes a handicap. The aim of this Building Issue is to help create physical environments, particularly in public buildings, that support people with physical and sensory impairments, so that they do not become handicapped. This report identi