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In this contribution we point out the challenges in Model-Based development of industrial plants regarding the integration of requirements. With the case study of a conveyor sorting system for parcels we show (i) that the specification of requirements is usually still only text based and (ii) what difficulties are entailed with that approach. The conceivable benefits of a Model-Based requirements...
The Tour Construction Framework (TCF) integrates both global and local heuristics in a complementary framework in order to efficiently solve the Travelling Salesman Problem (TSP). Most tour construction heuristics are strictly local in nature. However, the experimental method presented in this research includes a global heuristic to efficiently solve the TSP. The Global Path (GP) component and Super...
Existing relational databases are facing significant challenges as the hardware infrastructure and the underlying platform change from single CPUs to virtualized multicore machines arranged in large clusters. The problems are both technical and related to the licensing models currently in place. In this short abstract we briefly outline the challenges faced by organizations trying to virtualize and...
Various LTCC-tape materials have been characterized regarding their RF-properties at elevated temperature by means of impedance measurement of square-shaped capacitor samples up to a frequency of 3 MHz. Parameters of an equivalent circuit were fitted to reconstruct the impedance characteristics and the parameters extracted. The activation energies of samples were derived from the impedance model.
A cycloconverter-fed gearless mill drive is a drive system that has hardware and software protection functions to protect the equipment in case of abnormal operating conditions, malfunctions or failures. For demanding applications in the mining industry, protections systems need to be reviewed considering special or abnormal operating conditions as well as the need of high system availability. Some...
Nanotechnology is proliferating at a rapid rate in many areas including semiconductor lasers, biotechnology, and optoelectronics, as researchers create applications which capitalize on the unique advantages operating on the nanoscale afford them. In the case of semiconductor lasers it was found that by creating active layers on order of the de Broglie wavelength in all spatial directions, the movement...
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