Fraunhofer-Publica
The Fraunhofer-Publica has been successfully documenting the research results of the Fraunhofer-Gesellschaft for over 30 years. The platform enables the collaborative linking of research-relevant objects and disseminates within the international scientific community.
The Fraunhofer-Publica thus fulfils its responsibility to promote the transfer of knowledge and know-how to industry and society.
Categories
Research outputs
As an application-oriented research organisation, Fraunhofer aims to conduct highly innovative and solution-oriented research - for the benefit of society and to strengthen the German and European economy.
Projects
Fraunhofer is tackling the current challenges facing industry head on. By pooling their expertise and involving industrial partners at an early stage, the Fraunhofer Institutes involved in the projects aim to turn original scientific ideas into marketable products as quickly as possible.
Researchers
Scientific achievement and practical relevance are not opposites - at Fraunhofer they are mutually dependent. Thanks to the close organisational links between Fraunhofer Institutes and universities, science at Fraunhofer is conducted at an internationally first-class level.
Institutes
The Fraunhofer-Gesellschaft is the leading organisation for applied research in Europe. Institutes and research facilities work under its umbrella at various locations throughout Germany.
Recent Additions
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PublicationMachine learning-based detection of acute psychosocial stress from body posture and movements( 2024)Investigating acute stress responses is crucial to understanding the underlying mechanisms of stress. Current stress assessment methods include self-reports that can be biased and biomarkers that are often based on complex laboratory procedures. A promising additional modality for stress assessment might be the observation of body movements, which are affected by negative emotions and threatening situations. In this paper, we investigated the relationship between acute psychosocial stress induction and body posture and movements. We collected motion data from N = 59 individuals over two studies (Pilot Study: N = 20, Main Study: N = 39) using inertial measurement unit (IMU)-based motion capture suits. In both studies, individuals underwent the Trier Social Stress Test (TSST) and a stress-free control condition (friendly-TSST; f-TSST) in randomized order. Our results show that acute stress induction leads to a reproducible freezing behavior, characterized by less overall motion as well as more and longer periods of no movement. Based on these data, we trained machine learning pipelines to detect acute stress solely from movement information, achieving an accuracy of formula presented (Pilot Study) and formula presented (Main Study). This, for the first time, suggests that body posture and movements can be used to detect whether individuals are exposed to acute psychosocial stress. While more studies are needed to further validate our approach, we are convinced that motion information can be a valuable extension to the existing biomarkers and can help to obtain a more holistic picture of the human stress response. Our work is the first to systematically explore the use of full-body body posture and movement to gain novel insights into the human stress response and its effects on the body and mind.
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PublicationAudio forensics and provenance analysis: Technologies for media verification and asset management( 2021-06-01)This paper discusses a number of audio forensics and provenance analysis technologies that were developed for media verification and media asset management, describing the motivation behind them, the methods used to develop them, and the way they are applied in practice. The paper also shows how the technologies may be adapted and applied to other domains. Finally, it outlines why it is crucial for research and development to follow an iterative, interactive process that does not require large budgets, but rather the willingness of users (here: broadcasters) and researchers to conduct experiments with limited risk and investment instead of waiting for ‘perfect projects’ and ‘perfect technologies’.
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Journal
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PublicationFlexible Hybrid Electronics with 3DIC( 2023-10)In recent years, wearable devices, implantable devices, and the Internet of Things have become increasingly popular as such devices have become smaller and lighter, and the development of wireless communications has made it easier for device-to-device connection, thus diversifying the applications of electronic devices. Although conventional devices are limited by the shape of their internal printed circuit boards (PCBs), making them impossible to bend, lots of flexible devices based on organic semiconductors and thin film transistors (TFT) [1] using flexible substrates instead of rigid PCBs have been reported. However, there are several issues with conventional flexible devices using organic semiconductors. First, carrier mobility of organic semiconductors’ is lower than inorganic single-crystal semiconductors such as Si. Since carrier mobility is an important factor in determining the operation speed and power consumption of an IC, it is challenging to construct high-performance devices with organic semiconductors compared to those with inorganic single-crystal semiconductors. The second problem is the difficulty of manufacturing high-density wiring. The wiring width of typical printed electronics is several millimeters to several tens of micrometers, making it challenging to achieve highly integrated and high-performance flexible devices.
Most viewed
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PublicationBestimmung von in Holzschutzmitteln eingesetzten Wirkstoffen in festen und flüssigen Matrizes( 2000)Infolge der Ausrüstung von Holz mit biozid wirksamen Mitteln zum Schutz vor holzzerstörenden oder -verfärbenden Pilzen und Insekten stellt sich spätestens nach Ablauf der Gebrauchsdauer, aber auch bereits während der Nutzung das Problem des potentiellen Freisetzung der Wirkstoffe in die Umwelt. Dies erfordert Kontrollmechanismen bezüglich des Gehaltes dieser Chemikalien im Holz, aber auch in den zum Schutz des Holzes eingesetzten Produkten. Eine wichtige Voraussetzung für diese Kontrollmechanismen ist das Vorhandensein von Analysenmethoden zur Bestimmung der Gehalte der verwendeten Wirkstoffe in allen relevanten Matrizes. Der Text befaßt sich mit den Besonderheiten der Analytik von Holzschutzmittelwirkstoffen in Holz und insbesondere in den Holzschutzmittelformulierungen.
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PublicationOn the voltage scaling potential of SONOS non-volatile memory transistors( 2015)With technology scaling of embedded nonvolatile memories, voltage scaling below 12 V is a primary goal to maintain the area efficiency of the memory module. The SONOS technology shows promise as a technology for present and future low voltage memory cells. This paper examines the physics of scaled SONOS gate dielectrics in relation to reducing the operational voltage. In particular, we have examined the influence of tunnel oxide, nitride and top oxide thicknesses. The results are supported by electrical simulation of the SONOS gate dielectric. By properly scaling the dielectric films and utilizing electrical simulation we have determined a limit for scalability of the SONOS technology in terms of operation voltage.
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Mainwork20th International Conference on Digital Audio Effects, DAFx 2017. Proceedings(University of Edinburgh, 2017)