Thorsten Krebs

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In this paper, we present a survey on research topics we consider with in the EU project ConIPF (Configuration of Industrial Product Families). The application domain which is considered in this project contains combined hardware/software systems. Those systems share a lot of commonalities and are configured in a rich variety of outcoming products. Besides(More)
Because of the possibly large variability in families of software systems and the complex dependencies between individual software components, product derivation in the context of software-intensive systems is not a trivial task. In this demonstration, we show the domain-independent structure-based configuration tool KONWERK, extended with a knowledge base(More)
There are several whole smoke exposure systems used to assess the biological and toxicological impact of tobacco smoke in vitro. One such system is the Vitrocell® VC 10 Smoking Robot and exposure module. Using quartz crystal microbalances (QCMs) installed into the module, we were able to assess tobacco smoke particle deposition in real-time. We compared(More)
A pilot study was conducted to investigate the influence of electromagnetic fields in the short-wave range (3-30 MHz) radio transmitter signals on salivary melatonin concentration in dairy cattle. The hypothesis to be tested was whether EMF exposure would lower salivary melatonin concentrations, and whether removal of the EMF source would be followed by(More)
Behçet disease is a systemic inflammatory disease of unknown etiology initially described as a triad of recurrent oral ulcers, genital ulcers, and hypopyon uveitis affecting young male adults. Internationally agreed diagnostic criteria have been proposed to assist in the diagnosis. We present the case of a 26-year-old African-American male who presented(More)
RSL is a requirements specification language that was developed in the ReDSeeDS project. The language allows requirements specifications using a meta model that defines both modelbased and descriptive representations. Model-based representations provide activity and sequence diagrams similar to UML while descriptive representations offer scenarios in(More)
RSL is a requirements specification language that was developed in the ReDSeeDS project. The language allows requirements specifications using both model-based and descriptive representations. In this paper we tackle the problem of determining similarity of requirements that use both types of representations. We argue that in this case a combination of(More)