At the AAAI 2005 Robot Exhibition, the robot GRACE (Graduate Robot Attending a ConferencE, Fig. 1) will be playing a game that involves human-robot social interaction, navigation, and interface design. The task is for Grace to locate and rendezvous with one of our team members, who will be wearing a pink hat. The game can be seen as a social version of “tag” or “Marco Polo,” where the the robot...

3-Axis Machines have traditionally been used for stamping die insert machining, which have less flexibility in terms of degrees of freedom. In order to cater to ever increasing demand for class-A surface finish of the inserts, additional operations such as hand grinding and polishing needs to be performed. It has been possible to manufacture the die inserts with 5 -axis machines, which in theor...

Timing the transition of a processor design to a new technology poses a provocative tradeoff. On the one hand, transitioning as early as possible offers a significant competitive advantage, by bringing improved designs to market early. On the other hand, an aggressive strategy may prove to be unprofitable, due to the low manufacturing yield of a technology that has not had time to mature. We pr...

Software altert relativ zu ihrer Umgebung. Denn die Umgebung, in der Software eingesetzt wird, verändert sich kontinuierlich. Sowohl die Anforderungen an die Software als auch die verwendete Hardware und Infrastruktur sind einem stetigen Wandel ausgesetzt. Wird die Software nicht entsprechend weiterentwickelt, so altert sie rasch relativ zu ihrer Umgebung. Dieses Problem ist vor allem im Bereic...

The power density in high performance systems continues to rise with every process technology generation, thereby increasing the operating temperature and creating ‘hot spots’ on the die. As a result, the performance, reliability and power consumption of the system degrade. To avoid these ‘hot spots’, ‘temperature-aware’ design has become a must. For low-power embedded systems though, it is not...

Neue Medien und Neue Technologien schaffen die technischen Grundlagen für einen breiten Einsatz visuell-orientierter Unterrichtsmaterialien und für die Integration interaktiver Komponenten in den Lernprozess. Java-Applets, die gerade die Potentiale kombinieren, sind deshalb von herausragender Bedeutung für anspruchsvolle eLearning-Umgebungen. Für die mathematische Ausbildung spielen Interaktivi...

Die bisher manuelle Compliance-Zertifizierung von Workflows kann besonders im Cloud-Computing den Ansprüchen an Einhaltung verschiedenster Regularien und hohe Flexibilität nicht gerecht werden. Mit Comcert wurde in diesem Beitrag ein Verfahren zur automatisierten Analyse von Workflows vorgestellt. Hält ein Workflow die aufgestellten Regeln nicht ein, lokalisiert Comcert die Schwachstellen imWor...

This thesis introduces the DLXπ+, a super-pipelined processor with variable cycle time. The cycle time of the DLXπ+ may be as low as 9 gate delays (including 5 gate delays for registers), which is assumed to be a lower bound for the cycle time. For the parts of the DLXπ+ that significantly differ form previous implementations correctness proofs are provided. Formulas are developed which compute...

In classical optimal foraging models long-term rate of energy intake (the ratio of expected amount of food over expected time) is assumed to be die maximized currency, because doing this is consistent with minimizing die loss of alternative opportunities. Here this possibility and various alternatives are examined quantitatively using European starlings (Sturnus vulgaris) in the laboratory. The...

The reliability of an integrated circuit (IC) is a strong function of temperature. In this study, we developed domputer-aided design tools to predict the temperature distribution of an IC die and compared it with thermal maps obtained by infrared (IR) imaging. A temperature sensor array fabricated on test chips was used to measure the actual surface temperature of an IC die., This array was use...