TY  - JOUR
A1  - Frauenrath, Tobias
A1  - Niendorf, Thoralf
A1  - Kob, Malte
T1  - Acoustic method for synchronization of Magnetic Resonance Imaging (MRI)
JF  - Acta Acustica
N2  - Magnetic Resonance Imaging (MRI) of moving organs requires synchronization with physiological motion or flow, which dictate the viable window for data acquisition. To meet this challenge, this study proposes an acoustic gating device (ACG) that employs acquisition and processing of acoustic signals for synchronization while providing MRI compatibility, immunity to interferences with electro-magnetic and acoustic fields and suitability for MRI at high magnetic field strengths. The applicability and robustness of the acoustic gating approach is examined in a pilot study, where it substitutes conventional ECG-gating for cardiovascular MR. The merits and limitations of the ACG approach are discussed. Implications for MR imaging in the presence of physiological motion are considered including synchronization with other structure- or motion borne sounds.
Y1  - 2008
U6  - https://doi.org/10.3813/AAA.918017
SN  - 1861-9959
VL  - 94
IS  - 1
SP  - 148
EP  - 155
PB  - Hirzel
CY  - Stuttgart
ER  - 
TY  - JOUR
A1  - Hillgärtner, Michael
T1  - Normative Regulations
JF  - ECPE Cluster Seminar EMC in Hybrid and Electric Vehicles : 18 May 2010, Fraunhofer Institute Erlangen
Y1  - 2010
N1  - ECPE Workshop: EMC in Hybrid and Electric Vehicles, 18/05/2010, Erlangen, Germany
PB  - European Center for Power Electronics
CY  - Nürnberg
ER  - 
TY  - JOUR
A1  - Hoffmann, Ulrich
A1  - Schermutzki, Margret
A1  - Winckelmann-Schlieper, Katja
T1  - Kompetenzbasierte Verzahnung von berufspraktischem und wissenschaftlichem Lernen : Der Studiengang Prozesstechnik der FH Aachen
JF  - Berufsbildung in Wissenschaft und Praxis
N2  - Durch rapide gesellschaftliche Veränderungen und neue Anforderungen auf dem Arbeitsmarkt gewinnt die akademische berufliche Weiterbildung zunehmend an Bedeutung. Die Nachfrage nach entsprechenden Angeboten ist sowohl seitens der Unternehmen als auch der Arbeitnehmer/-innen hoch. Die Hochschulen sind aufgefordert, darauf zu reagieren und Wege für lebenslanges Lernen aufzuzeigen, indem sie außerhalb der Hochschule erworbene Kenntnisse auf Hochschulabschlüsse anerkennen und Möglichkeiten schaffen, diese Kenntnisse mit dem Ziel weiterzuentwickeln, einen akademischen Abschluss zu erreichen. Dieser Beitrag stellt einen Studiengang vor, der es Berufstätigen ermöglicht, durch die Anrechnung beruflich erworbener Kompetenzen bis zu 50 Prozent der zu erbringenden Studienleistung abzugelten.
Y1  - 2010
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:0035-bwp-10232-7
SN  - 0341-4515
VL  - 39
IS  - 2
SP  - 32
EP  - 36
PB  - Bundesinstitut für Berufsbildung (BiBB)
CY  - Bonn
ER  - 
TY  - JOUR
A1  - Hoffmann, Ulrich
T1  - Neue Wege in die Hochschule – Beispiel des berufsbegleitenden Studienganges Prozesstechnik der FH Aachen und der Rhein-Erft Akademie
JF  - HIS: Forum Hochschule. 2008 (2008), H. F14
Y1  - 2008
SN  - 1863-5563
SP  - 130
EP  - 138
ER  - 
TY  - JOUR
A1  - Scholl, Ingrid
A1  - Palm, Christoph
A1  - Lehmann, Thomas Martin
A1  - Spitzer, Klaus
T1  - Quantitative Farbmessung in laryngoskopischen Bildern. Palm, C; Scholl, I; Lehmann, TM; Spitzer, K.
JF  - Bildverarbeitung für die Medizin 1998. Hrsg.: Thomas Lehmann ...
Y1  - 1998
SN  - 3-540-63885-7
SP  - 412
EP  - 416
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Fiedler, Thomas M.
A1  - Ladd, Mark E.
A1  - Bitz, Andreas
T1  - RF safety assessment of a bilateral four-channel transmit/receive 7 Tesla breast coil: SAR versus temperature limits
JF  - Medical Physics
Y1  - 2017
U6  - https://doi.org/10.1002/mp.12034
N1  - This article is corrected by:
Errata: Erratum: “RF safety assessment of a bilateral four-channel transmit/receive 7 Tesla breast coil: SAR versus tissue temperature limits” [Med. Phys. 44(1), 143–157 (2017)] Volume 44, Issue 2, 772
VL  - 44
IS  - 1
SP  - 143
EP  - 157
ER  - 
TY  - JOUR
A1  - Fiedler, Thomas M.
A1  - Ladd, Mark E.
A1  - Clemens, Markus
A1  - Bitz, Andreas
T1  - Safety of subjects during radiofrequency exposure in ultra-high-field magnetic resonance imaging
JF  - IEEE Letters on Electromagnetic Compatibility Practice and Applications
N2  - Magnetic resonance imaging (MRI) is one of the most important medical imaging techniques. Since the introduction of MRI in the mid-1980s, there has been a continuous trend toward higher static magnetic fields to obtain i.a. a higher signal-to-noise ratio. The step toward ultra-high-field (UHF) MRI at 7 Tesla and higher, however, creates several challenges regarding the homogeneity of the spin excitation RF transmit field and the RF exposure of the subject. In UHF MRI systems, the wavelength of the RF field is in the range of the diameter of the human body, which can result in inhomogeneous spin excitation and local SAR hotspots. To optimize the homogeneity in a region of interest, UHF MRI systems use parallel transmit systems with multiple transmit antennas and time-dependent modulation of the RF signal in the individual transmit channels. Furthermore, SAR increases with increasing field strength, while the SAR limits remain unchanged. Two different approaches to generate the RF transmit field in UHF systems using antenna arrays close and remote to the body are investigated in this letter. Achievable imaging performance is evaluated compared to typical clinical RF transmit systems at lower field strength. The evaluation has been performed under consideration of RF exposure based on local SAR and tissue temperature. Furthermore, results for thermal dose as an alternative RF exposure metric are presented.
Y1  - 2020
SN  - 2637-6423
U6  - https://doi.org/10.1109/LEMCPA.2020.3029747
VL  - 2
IS  - 3
SP  - 1
EP  - 8
PB  - IEEE
CY  - New York, NY
ER  - 
TY  - JOUR
A1  - Schlamann, M.
A1  - Yoon, M.-S.
A1  - Maderwald, S.
A1  - Pietrzyk, Thomas
A1  - Bitz, Andreas
A1  - Gerwig, M.
A1  - Forsting, M.
A1  - Ladd, S. C.
A1  - Ladd, M. E.
A1  - Kastrup, O.
T1  - Auswirkungen der Magnetresonanztomografie auf die Elektrophysiologie des motorischen Kortex: eine Studie mit transkranieller Magnetstimulation
T1  - Effects of MRI on the electrophysiology of the motor cortex: a TMS study
JF  - RöFo - Fortschritte auf dem Giebiet der Röntgenstrahlen und der bildgebenden Verfahren
Y1  - 2009
U6  - https://doi.org/10.1055/s-0028-1109038
SN  - 1438-9029
VL  - 181
IS  - 3
SP  - 215
EP  - 219
PB  - Thieme
CY  - Stuttgart
ER  - 
TY  - JOUR
A1  - Schmidt, Katharina
A1  - Forkmann, Katarina
A1  - Schultz, Heidrun
A1  - Gratz, Marcel
A1  - Bitz, Andreas
A1  - Wiech, Katja
A1  - Bingel, Ulrike
T1  - Enhanced Neural Reinstatement for Evoked Facial Pain Compared With Evoked Hand Pain
JF  - The  Journal of Pain
Y1  - 2019
U6  - https://doi.org/10.1016/j.jpain.2019.03.003
SN  - 1526-5900
IS  - In Press, Corrected Proof
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Schmidt, Katharina
A1  - Forkmann, Katarina
A1  - Sinke, C.
A1  - Gratz, Marcel
A1  - Bitz, Andreas
A1  - Bingel, Ulrike
T1  - The differential effect of trigeminal vs. peripheral pain stimulation on visual processing and memory encoding is influenced by pain-related fear
JF  - NeuroImage
N2  - Compared to peripheral pain, trigeminal pain elicits higher levels of fear, which is assumed to enhance the interruptive effects of pain on concomitant cognitive processes. In this fMRI study we examined the behavioral and neural effects of trigeminal (forehead) and peripheral (hand) pain on visual processing and memory encoding. Cerebral activity was measured in 23 healthy subjects performing a visual categorization task that was immediately followed by a surprise recognition task. During the categorization task subjects received concomitant noxious electrical stimulation on the forehead or hand. Our data show that fear ratings were significantly higher for trigeminal pain. Categorization and recognition performance did not differ between pictures that were presented with trigeminal and peripheral pain. However, object categorization in the presence of trigeminal pain was associated with stronger activity in task-relevant visual areas (lateral occipital complex, LOC), memory encoding areas (hippocampus and parahippocampus) and areas implicated in emotional processing (amygdala) compared to peripheral pain. Further, individual differences in neural activation between the trigeminal and the peripheral condition were positively related to differences in fear ratings between both conditions. Functional connectivity between amygdala and LOC was increased during trigeminal compared to peripheral painful stimulation. Fear-driven compensatory resource activation seems to be enhanced for trigeminal stimuli, presumably due to their exceptional biological relevance.
Y1  - 2016
U6  - https://doi.org/10.1016/j.neuroimage.2016.03.026
SN  - 1053-8119
VL  - 134
SP  - 386
EP  - 395
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Orzada, Stephan
A1  - Solbach, Klaus
A1  - Gratz, Marcel
A1  - Brunheim, Sascha
A1  - Fiedler, Thomas M.
A1  - Johst, Sören
A1  - Bitz, Andreas
A1  - Shooshtary, Samaneh
A1  - Abuelhaija, Ashraf
A1  - Voelker, Maximilian N.
A1  - Rietsch, Stefan H. G.
A1  - Kraff, Oliver
A1  - Maderwald, Stefan
A1  - Flöser, Martina
A1  - Oehmingen, Mark
A1  - Quick, Harald H.
A1  - Ladd, Mark E.
T1  - A 32-channel parallel transmit system add-on for 7T MRI
JF  - Plos one
Y1  - 2019
U6  - https://doi.org/10.1371/journal.pone.0222452
ER  - 
TY  - JOUR
A1  - Rietsch, Stefan H. G.
A1  - Brunheim, Sascha
A1  - Orzada, Stephan
A1  - Voelker, Maximilian N.
A1  - Maderwald, Stefan
A1  - Bitz, Andreas
A1  - Gratz, Marcel
A1  - Ladd, Mark E.
A1  - Quick, Harald H.
T1  - Development and evaluation of a 16-channel receive-only RF coil to improve 7T ultra-high field body MRI with focus on the spine
JF  - Magnetic Resonance in Medicine
Y1  - 2019
U6  - https://doi.org/10.1002/mrm.27731
SN  - 1522-2594
IS  - Early view
PB  - Wiley
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Orzada, Stephan
A1  - Bitz, Andreas
A1  - Johst, Sören
A1  - Gratz, Marcel
A1  - Völker, Maximilian N.
A1  - Kraff, Oliver
A1  - Abuelhaija, Ashraf
A1  - Fiedler, Thomas M.
A1  - Solbach, Klaus
A1  - Quick, Harald H.
A1  - Ladd, Mark E.
T1  - Analysis of an integrated 8-Channel Tx/Rx body array for use as a body coil in 7-Tesla MRI
JF  - Frontiers in Physics
Y1  - 2017
U6  - https://doi.org/10.3389/fphy.2017.00017
SN  - 2296-424X
N1  - Article number 17
VL  - 5
IS  - Jun
ER  - 
TY  - JOUR
A1  - Schuba, Marko
A1  - Höfken, Hans-Wilhelm
T1  - Backtrack5: Datensammlung und Reporterstellung für Pentester mit MagicTree
JF  - Hakin9
Y1  - 2012
SN  - 1733-7186
VL  - 73
IS  - 3
SP  - 12
EP  - 16
ER  - 
TY  - JOUR
A1  - Schuba, Marko
A1  - Gerstenberger, Volker
A1  - Lahaije, Paul
T1  - Internet ID – Flexible Reuse of Mobile Phone Authentication Security for Service Access / Schuba, Marko ; Gerstenberger, Volker, ; Lahaije, Paul
Y1  - 2004
N1  - Nordsec 2004, Helsinki ; Nordic Workshop on Secure IT-systems <9, 2004>
SP  - 1
EP  - 7
ER  - 
TY  - JOUR
A1  - Maus, Stefan
A1  - Höfken, Hans-Wilhelm
A1  - Schuba, Marko
T1  - Forensic Analysis of Geodata in Android Smartphones
Y1  - 2011
N1  - Cyberforensics 2011, Glasgow
SP  - 1
EP  - 11
ER  - 
TY  - JOUR
A1  - Schuba, Marko
A1  - Busboom, Axel
A1  - Herwono, Ian
A1  - Zavagli, Guido
T1  - Unambiguous Device Identification and Fast Connection Setup in Bluetooth / Busboom, Axel ; Herwono, Ian ; Schuba, Marko ; Zavagli, Guido
JF  - European wireless 2002 : next generation wireless networks: technologies, protocols, services and applications ; technical sessions: 26 - 28 February 2002, tutorials: 25 February 2002, Centro Affari, Florence, Italy ; proceedings / sponsored by EUREL ... General chair: Luciano Lenzini
Y1  - 2002
SP  - 1
EP  - 5
ER  - 
TY  - JOUR
A1  - Schuba, Marko
A1  - Spaniol, Otto
T1  - Interconnection of Local Area Networks via ATM / Spaniol, Otto ; Schuba, Marko
JF  - High performance networks for multimedia applications / edited by André Danthine ...
Y1  - 1999
SN  - 0-7923-8274-9
SP  - 1
EP  - 10
PB  - Kluwer Academic Publ.
CY  - Dordrecht
ER  - 
TY  - JOUR
A1  - Schuba, Marko
A1  - Höfken, Hans-Wilhelm
A1  - Schaefer, Thomas
T1  - Smartphone Forensik
JF  - Hakin9 : Practical Protection
Y1  - 2012
SN  - 1733-7186
SP  - 10
EP  - 20
ER  - 
TY  - JOUR
A1  - Schuba, Marko
A1  - Wrona, Konrad
T1  - Mobile Chip Electronic Commerce: Enabling Credit Card Payment for Mobile Devices / Schuba, Marko ; Wrona, Konrad
Y1  - 2000
N1  - eBiz2000 Specialist Conference @ CommunicAsia2000, Singapore, June 2000
SP  - 1
EP  - 6
ER  - 
TY  - JOUR
A1  - Schuba, Marko
A1  - Schneider, Gaby
A1  - Haverkort, Boudewijn R.
T1  - QNA-MC: A Performance Evaluation Tool for Communication Networks with Multicast Data Streams / Schneider, G. ; Schuba, M. ; Haverkort, B. R.
JF  - Computer Performance Evaluation - Modelling Techniques and Tools / Puigjaner, Ramon (eds.)
Y1  - 1998
SN  - 3-540-64949-2
N1  - Lecture notes in computer  science ; 1469
SP  - 105
EP  - 116
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Schuba, Marko
A1  - Reichl, Peter
T1  - An Analysis of Retransmission Strategies for Reliable Multicast Protocols / Schuba, M. ; Reichl, P.
JF  - Performance of information and communication systems : IFIP TC 6,WG 6.3 Seventh International Conference on Performance of Information and Communication Systems (PICS '98), 25 - 28 May, Lund, Sweden / ed. by Ulf Körner ...
Y1  - 1998
SN  - 0-412-83730-7
SP  - 1
EP  - 12
PB  - Chapman  Hall
CY  - London
ER  - 
TY  - JOUR
A1  - Schuba, Marko
T1  - Performance Analysis of Reliable Multicast Mechanisms for Widely Spread Distributed Applications in the Internet
JF  - International Conference on Parallel and Distributed Processing Techniques and Applications : PDPTA '99 ; June 28 - July 1, 1999, Las Vegas, Nevada, USA / ed.: Hamid R. Arabnia
Y1  - 1999
SN  - 1892512157
SP  - 1
EP  - 7
ER  - 
TY  - JOUR
A1  - Schuba, Marko
A1  - Reichl, Peter
A1  - Hoff, Simon
T1  - How to Model Complex Periodic Traffic with TES / Reichl, Peter ; Schuba, Marko ; Hoff, Simon
JF  - Proc. of 13th United Kingdom Workshop on Performance Engineering, Edinburgh, UK, July 1997
Y1  - 1997
SP  - 17/1
EP  - 17/11
ER  - 
TY  - JOUR
A1  - Schuba, Marko
T1  - Analysis of Feedback Error Control Schemes for Block Based Video Communication / Meggers, Jens ; Schuba, Marko
Y1  - 1999
ER  - 
TY  - JOUR
A1  - Schuba, Marko
A1  - Wrona, Konrad
T1  - Electronic Commerce Transactions in a Wireless Environment / Schuba, Marko. ; Wrona, Konrad
Y1  - 1999
N1  - IWTEC ´99
SP  - 1
EP  - 9
ER  - 
TY  - JOUR
A1  - Schuba, Marko
A1  - Reichl, Peter
T1  - How to Place Connectionless Servers in ATM Networks / Schuba, Marko ; Reichl, Peter
JF  - Proc. of Fourth IFIP Workshop on Performance Modelling and Evaluation of ATM Networks
Y1  - 1996
N1  - Fourth IFIP Workshop on Performance Modelling and Evaluation of ATM Networks, Ilkley, West Yorkshire, U.K., July 1996
SP  - 09/1
EP  - 09/10
ER  - 
TY  - JOUR
A1  - Schaefer, Thomas
A1  - Höfken, Hans-Wilhelm
A1  - Schuba, Marko
T1  - Windows Phone 7 from a Digital Forensics’ Perspective
Y1  - 2011
U6  - https://doi.org/10.1007/978-3-642-35515-8_6
N1  - ICDF2C <3, 2011, Dublin>
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Schuba, Marko
A1  - Reichl, Peter
A1  - Kesdogan, Dogan
A1  - Junghärtchen, Klaus
T1  - Simulative Performance Evaluation of the Temporary Pseudonym Method for Protecting Location Information in GSM Networks / Reichl, P. ; Kesdogan, D. ; Junghärtchen, K. ; Schuba, M.
JF  - Computer Performance Evaluation - Modelling Techniques and Tools / Puigjaner, Ramon (eds.)
Y1  - 1998
SN  - 3-540-64949-2
N1  - Lecture notes in computer  science ; 1469
SP  - 105
EP  - 116
PB  - Springer
CY  - Berlin
ER  - 
TY  - JOUR
A1  - Schuba, Marko
A1  - Hermanns, Oliver
T1  - Modellierung von Multicastmechanismen zur Unterstützung von Gruppenkommunikation / Schuba, Marko ; Hermanns, Oliver
JF  - Neue Konzepte für die offene verteilte Verarbeitung : Tagungsband des 1. Arbeitstreffens an der RWTH Aachen, 5. September 1994 / Hrsg. des Bd.: Claudia Popien und Bernd Meyer
Y1  - 1994
SN  - 3-86073-143-2
N1  - Aachener Beiträge zur Informatik ; 7
SP  - 137
EP  - 147
PB  - Verl. der Augustinus-Buchh.
CY  - Aachen
ER  - 
TY  - JOUR
A1  - Schuba, Marko
A1  - Haverkort, Boudewijn R.
A1  - Schneider, Gaby
T1  - Performance evaluation of multicast communication in packet-switched networks / Schuba, Marko ; Haverkort, Boudewijn  R. ; Schneider, Gaby
JF  - Performance Evaluation. 39 (2000), H. 1-4
Y1  - 2000
SN  - 0166-5316
U6  - https://doi.org/10.1016/S0166-5316(99)00058-9
SP  - 61
EP  - 80
ER  - 
TY  - JOUR
A1  - Schuba, Marko
A1  - Hermanns, Oliver
T1  - Performance Investigations of the IP Multicast Architecture / Hermanns, Oliver ; Schuba, Marko
JF  - Performance of the IP Multicast Achitecture . Proceedings JENC 6. Proceedings of the 6th Joint European Networking Conference, Tel Aviv
Y1  - 1995
N1  - Reprinted in Computer Networks and ISDN Systems 28 pp 429-439, 1996
SP  - 121-1
EP  - 121-8
ER  - 
TY  - JOUR
A1  - Schuba, Marko
A1  - Wrona, Konrad
T1  - Security for Mobile Commerce Applications / Schuba, Marko ; Wrona, Konrad
Y1  - 2001
N1  - Multimedia, Internet, Video Technologies 2001 (MIV 2001), Malta, September 1-6, 2001 ; WSEAS Conference ; World Scientific and Engineering Academy and Society
SP  - 1
EP  - 8
ER  - 
TY  - JOUR
A1  - Gong, Jing
A1  - Raut, Amod
A1  - Pelzer, Marcel
A1  - Hüning, Felix
T1  - Marking-based perpendicular parking slot detection algorithm using LiDAR sensors
JF  - Vehicles
N2  - The emergence of automotive-grade LiDARs has given rise to new potential methods to develop novel advanced driver assistance systems (ADAS). However, accurate and reliable parking slot detection (PSD) remains a challenge, especially in the low-light conditions typical of indoor car parks. Existing camera-based approaches struggle with these conditions and require sensor fusion to determine parking slot occupancy. This paper proposes a parking slot detection (PSD) algorithm which utilizes the intensity of a LiDAR point cloud to detect the markings of perpendicular parking slots. LiDAR-based approaches offer robustness in low-light environments and can directly determine occupancy status using 3D information. The proposed PSD algorithm first segments the ground plane from the LiDAR point cloud and detects the main axis along the driving direction using a random sample consensus algorithm (RANSAC). The remaining ground point cloud is filtered by a dynamic Otsu’s threshold, and the markings of parking slots are detected in multiple windows along the driving direction separately. Hypotheses of parking slots are generated between the markings, which are cross-checked with a non-ground point cloud to determine the occupancy status. Test results showed that the proposed algorithm is robust in detecting perpendicular parking slots in well-marked car parks with high precision, low width error, and low variance. The proposed algorithm is designed in such a way that future adoption for parallel parking slots and combination with free-space-based detection approaches is possible. This solution addresses the limitations of camera-based systems and enhances PSD accuracy and reliability in challenging lighting conditions.
KW  - point cloud processing
KW  - RANSAC
KW  - line detection
KW  - automated parking
KW  - LiDAR
KW  - parking slot detection
Y1  - 2024
U6  - https://doi.org/10.3390/vehicles6040083
SN  - 2624-8921
N1  - Corresponding author: Felix Hüning
VL  - 6
IS  - 4
SP  - 1717
EP  - 1729
PB  - MDPI
CY  - Basel
ER  - 
TY  - JOUR
A1  - Hüning, Felix
A1  - Heuermann, Holger
A1  - Wache, Franz-Josef
T1  - Wireless CAN without WLAN or Bluetooth
JF  - CAN Newsletter
N2  - In two developed concepts, dual-mode radio enables CAN participants to be integrated wirelessly into a CAN network. Constructed from a few components, a protocol-free, real-time transmission and thus transparent integration into CAN is provided.
Y1  - 2018
IS  - December
SP  - 44
EP  - 46
PB  - CAN in Automation GmbH
CY  - Nürnberg
ER  - 
TY  - JOUR
A1  - Hüning, Felix
A1  - Backes, Andreas
T1  - Direct observation of large Barkhausen jump in thin Vicalloy wires
JF  - IEEE Magnetics Letters
Y1  - 2020
SN  - 1949-307X
U6  - https://doi.org/10.1109/LMAG.2020.3046411
VL  - 11
IS  - Art. 2506504
SP  - 1
EP  - 4
PB  - IEEE
CY  - New York, NY
ER  - 
TY  - JOUR
A1  - Hüning, Felix
T1  - Hart im Nehmen : Low-Voltage-Powermosfets mit Super-Junction-1-Technologie optimieren
JF  - Elektronik-Journal
Y1  - 2009
SN  - 0013-5674
VL  - 44
IS  - 12
SP  - 36
EP  - 38
PB  - Österreichischer Wirtschaftsverlag GmbH
CY  - Wien
ER  - 
TY  - JOUR
A1  - Ferrein, Alexander
A1  - Schiffer, Stefan
A1  - Booysen, Tracy
A1  - Stopforth, Riaan
T1  - Why it is harder to run RoboCup in South Africa: Experiences from German South African collaborations
JF  - International Journal of Advanced Robotic Systems
N2  - Robots are widely used as a vehicle to spark interest in science and technology in learners. A number of initiatives focus on this issue, for instance, the Roberta Initiative, the FIRST Lego League, the World Robot Olympiad and RoboCup Junior. Robotic competitions are valuable not only for school learners but also for university students, as the RoboCup initiative shows. Besides technical skills, the students get some project exposure and experience what it means to finish their tasks on time. But qualifying students for future high-tech areas should not only be for students from developed countries. In this article, we present our experiences with research and education in robotics within the RoboCup initiative, in Germany and South Africa; we report on our experiences with trying to get the RoboCup initiative in South Africa going. RoboCup has a huge support base of academic institutions in Germany; this is not the case in South Africa. We present our ‘north–south’ collaboration initiatives in RoboCup between Germany and South Africa and discuss some of the reasons why we think it is harder to run RoboCup in South Africa.
Y1  - 2016
U6  - https://doi.org/10.1177/1729881416662789
SN  - 1729-8806
VL  - 13
IS  - 5
SP  - 1
EP  - 13
ER  - 
TY  - JOUR
A1  - Nehr, Sascha
A1  - Baus, Lukas
A1  - Çinar, Hasan
A1  - Elsen, Ingo
A1  - Frauenrath, Tobias
T1  - Indoor environmental quality assessment in passively ventilated classrooms in Germany and estimation of ventilation energy losses
JF  - Journal of Building Engineering
N2  - In this field study we present an approach for the comprehensive and room-specific assessment of
parameters with the overall aim to realize energy-efficient provision of hygienically harmless and
thermally comfortable indoor environmental quality in naturally ventilated non-residential
buildings. The approach is based on (i) conformity assessment of room design parameters, (ii)
empirical determination of theoretically expected occupant-specific supply air flow rates and
corresponding air exchange rates, (iii) experimental determination of real occupant-specific
supply air flow rates and corresponding air exchange rates, (iv) measurement of indoor environmental
exposure conditions of T, RH, cCO2 , cPM2.5 and cTVOC, and (v) determination of real
energy demands for the prevailing ventilation scheme. Underlying assessment criteria comprise
the indoor environmental parameters of category II of EN 16798-1: Temperature T = 20 ◦C–24 ◦C,
and relative humidity RH = 25 %–60 % as well as the guide values of the German Federal
Environment Agency for cCO2 cPM2.5 and cTVOC of 1000 ppm, 15 μg m⁻³, and 1 mg m ⁻³,
respectively.
Investigation objects are six naturally ventilated classrooms of a German secondary school.
Major factors influencing indoor environmental quality in these classrooms are the specific room
volume per occupant and the window opening area. It is concluded that the rigorous implementation
of ventilation recommendations laid down by the German Federal Environment
Agency is ineffective with respect to anticipated indoor environmental parameters and inefficient
with respect to ventilation energy losses on the order of about 10 kWh m⁻² a ⁻¹ to 30 kWh m⁻²
a ⁻¹.
KW  - Indoor air quality
KW  - Indoor environmental quality
KW  - Energy-efficient ventilation
KW  - CO2
KW  - PM2.5
Y1  - 2024
SN  - 2352-7102
VL  - 97
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Prume, Klaus
A1  - Muralt, Paul
A1  - Calame, Florian
A1  - Schmitz-Kempen, Thorsten
A1  - Tiedke, Stephan
T1  - Piezoelectric thin films: evaluation of electrical and electromechanical characteristics for MEMS devices  / Prume, K. ; Muralt, P. ; Calame, F. ; Schmitz-Kempen, T. ; Tiedke, S. ;
JF  - IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control. 54 (2007), H. 1
Y1  - 2007
SN  - 0885-3010
SP  - 81
EP  - 14
ER  - 
TY  - JOUR
A1  - Prume, Klaus
A1  - Tyholdt, Frode
A1  - Calame, Florian
A1  - Raeder, Henrik
A1  - Muralt, Paul
T1  - Chemically derived seeding layer for {100}-textured PZT thin films   / Tyholdt, F. ; Calame, F. ; Prume, K. ; Raeder, H. ; Muralt, P.
JF  - Journal of Electroceramics. 19 (2007), H. 4
Y1  - 2007
SN  - 1385-3449
SP  - 311
EP  - 314
ER  -