The proper handling of alarms is crucial to any automated process control. In practice, many alarms are only distractive and do not represent a fault situation. In an ongoing project a computerized tool is applied, that aims to remove such nuisance alarms, a so-called alarm cleanup. This is a general, systematic approach that takes advantage of the control system's built-in functions, and is a fir

We minimize the frequency and time occupancy of multicarrier binary linear modulation based on two-dimensional faster than Nyquist (FTN) signaling. FTN analysis provides the asymptotic time–frequency consumption per bit and prolate spheroidal wave analysis minimizes the side lobe occupancy. For both problems, an excellent choice is a Gaussian pulse, with some adjustment of the side lobes.

Converged normalized stress intensity factors for a matrix crack interacting with an elastic cylinder are presented. The new results differ from previously published results in several examples. The need for better error analysis in computational fracture mechanics is emphasized.

Popular Abstract in Swedish Subarachnoidalblödning är en blödning från hjärnans stora artärer. Blödningen kan uppstå spontant till följd av en försvagning av blodkärlet, vilket leder till en utbuktning som brister, eller som följd av trauma mot huvudet. Subarachnoidalblödning ger upphov till huvudvärk, illamående och kräkning och kan medföra högre eller lägre grad av medvetande-sänkning. Efter denOverall the aim has been to characterise the in vitro upregulation of the 5-hydroxytryptamine 1B/1D (5-HT(1B/1D)) and endothelin (ET) receptors in the cerebral circulation as well as demonstrating phenotypic changes in a pathophysiological model mimicking subarachnoid haemorrhage. The first part describes receptor upregulation using organ culture of whole vessel segments from both rat and man. The

In this paper transient electromagnetic wave propagation in an inhomogeneous, cold plasma is considered. It is assumed that a constant magnetic induction is present and that the plasma is spatially inhomogeneous in the direction of the magnetic induction. Losses in the plasma are modeled with a collision frequency ν. The direct problem, which is to calculate the reflected and transmitted responses

In this report a generic model for the capture and assessment of end-user requirements and needs, the CREDIT carpenter model, has been developed. The main determinants of the model is the need for the project organisation (including the facilities management organisation) to ensure a thorough understanding of the end-user requirements and needs as well as an assessment through out the project proc

Combining technology enabled learning and knowledge management is a very promising strategy to systematic competence building in software organizations. In order to set-up a combined learning and knowledge management environment and to support organization members in packaging small chunks of knowledge into courseware modules, Fraunhofer IESE developed the IntView-KM methodology. IntView-KM define

see 26589