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The Ko-PER (cooperative perception) research project aims at improvements of active traffic safety through cooperative perception systems. Within the project a prototype of a cooperative warning system was realized. This system provides early advisory warnings which are especially useful in critical situations with occluded conflict partners. The development process was accompanied by a series of driving simulator studies to determine both the potential to reduce traffic conflicts and important design characteristics of early advisory warning signals. The most important details of the prototype system's components inter-vehicle information-fusion and situation analysis are described and the achieved warning timings are compared to the results of the driving simulator studies.
An Object Oriented Bayesian Network for recognition of maneuver in highway traffic has demonstrated an acceptably high recognition performance on a prototype car with a Linux PC having an i7 processor. This paper is focusing on keeping the high recognition performance of the original OOBN, while evaluating alternative modelling techniques and their impact on the memory and time requirements of an ECU-processor for automotive applications. New challenges are faced, when the prediction horizon is to be further extended.
Combined effects of ionizing radiation and cardio-active drugs on human iPSC-derived cardiomyocytes
(2014)
Informationslast ist in der heutigen „Information Society“ ein wesentlicher Faktor bei Entscheidungen im Unternehmensalltag. Neben den vielen Vorteilen der Weiterentwicklung von Managementinformationssystemen und der stetig höheren Verfügbarkeit von Informationen ist allerdings auch die Entwicklung zu betrachten, dass immer mehr Entscheidungsträger zu viele Informationen erhalten (vgl. Lohr, 2007). Quellen dieser Informationsüberlast sind das interne Berichtswesen und die schnelle und aufwandsarme Verfügbarkeit von Informationen über Managementinformationssysteme. Darüber hinaus ist die Herausforderung, auch für das Controlling, Entscheidungsträgern im Unternehmen einen optimalen Umfang an Informationen zur Verfügung zu stellen, keine reine IT-Problematik, sondern betrifft sehr stark auch die Bereiche Personalwesen und Organisation. Daher sollte das Controlling in seiner Koordinationsfunktion auch Personalwesen und Organisation berücksichtigen.
This study analyzes survey data on public-private partnerships (PPPs) of the German Armed Forces. The analyzed PPPs are unique in that the German Federal Ministry of Defence, a government institution, has a dual role as a main shareholder and a major customer. Drawing on these data, the present article analyzes how a government institution influences a PPP's set of objectives and shows that the conflict of interest with respect to monetary objectives between the government institution and the PPP as a whole is low in such partnerships. Furthermore, the article examines the opportunistic behavior of PPPs in contractual renegotiations where the government institution acts as a customer. The results show that, although such behavior indeed occurs, it does not concern monetary issues, since the government institution can control the monetary objectives of PPPs in which it is a main shareholder. Third, this study also analyzes and identifies certain exogenous factors that may influence the level of opportunistic behavior exhibited by the examined PPPs, providing evidence on the causes and effects of such behavior and indicating how it can be limited by the government institution.
This article explores the relationships between innovation idea value, innovators’ perceptions of fairness, and their participation behavior and knowledge sharing behavior in the intrafirm social network. The study uses survey data and a database from a large company that is one of Europe’s top performers in idea management. In addition to the idea database, this study surveys participating employees about their perceptions of fairness and their participation behavior and knowledge sharing behavior. The results show that there is a clear relationship between innovation idea value, employees’ perceptions of fairness, and employees’ participation behavior and knowledge sharing behavior. Furthermore, there is clear evidence that tenure increases the value of innovation ideas. The findings suggest a number of implications for ideation management and for the design of social networks for innovation ideas. To increase the value of innovation ideas, social networks for innovation ideas can be used if the allocation of rewards for idea providers is positively associated with the fairness perceptions of network members.