Filtyp
Abstract in UndeterminedHigh penetration of variable generation such as wind power increases the demands on frequency control. The same applies to island operation and in particular if this involves variable generation, which is planned at the Danish island Bornholm. While it is obvious that the frequency control need to be considered, the disturbances caused to this control by the hourly dispatch
This paper compares the performance and the robustness of several linear adaptive controllers using a linear system with time–varying disturbance in the presence of measurement noise. For the purpose of comparison we select the direct and indirect model reference adaptive controller (MRAC), the direct MRAC with σ–modification, and the L1 adaptive controller. Using tools from linear systems theory
To be able to survive in the long run the medical device industry of today needs effective development processes and ways to secure quality. These development processes and quality assurance processes must follow the different laws and regulations over the world depending on what market the organisations are established on. Organisations have been developing medical devices and systems over many y
Abstract : We present the first a priori derivation of a many-body theory for EXAFS with clearly defined approximations and with final expressions which are feasible for quantitative evaluations. We conclude that the conventional EXAFS expression should be complemented with a term that crudely is the main term, energy-shifted and scaled down by a factor of order 0.2-0.3. Further the f-factors depe
The details of an experimental setup for gas phase atomic and molecular fluorescence measurements using synchrotron radiation are described in this article. The most significant part of the apparatus is an optical arrangement, which allows for simultaneous measurements of dispersed as well as total fluorescence intensity using an effusive gas jet and an inbuilt gas cell assembled in a convenient p
