@inproceedings{Lohr2007, author = {Lohr, J{\"u}rgen}, title = {High Quality Streaming und High Definition Media Services}, year = {2007}, abstract = {In: Konferenzband zur Konferenz Medienproduktion 2007, 1.12.2008. 29 S. High Quality Streaming besch{\"a}ftigt sich mit High Definition Television und Mehrkanal Sound. In diesem Beitrag werden die Technologien und Anwendungsperspektiven f{\"u}r HD Medien-Dienstleistungen beschrieben. Der Beitrag entstand im Rahmen der Konferenz Medienproduktion „Expansion und Mobilit{\"a}t" am 7. Dezember 2007. Der Beitrag beschreibt Gesch{\"a}ftsmodelle, Technologien und neue Anwendungen f{\"u}r High Quality Streaming. Neben der Pr{\"a}sentation wurden auch die Medienproduktionen der unterschiedlichen HQ-Mediendienste vorgef{\"u}hrt. Die Mediendienste sind im Rahmen der Forschungsarbeit High Quality Media Services des Studiengangs Communication and Multimedia Design (Fachbereich Elektrotechnik und Informationstechnik) an der Fachhochschule Aachen entstanden. Eine Marktevaluierung der deutschen und niederl{\"a}ndischen M{\"a}rkte, internationale Expertengespr{\"a}chen sowie ein Prototypen HDMediaservices bilden die Basis der Forschungsarbeit. Die Mediendienste stehen zur Demonstration unter dem Link media.fh-aachen.de bereit. HQ-Mediendienste bedeuten: Gestochen scharfe Bilder in High Definition, volle Kl{\"a}nge in Surround und das {\"u}ber das Internet, wo doch gerade mal die briefmarkengroßen Bilder mit unscharfen Konturen und kr{\"a}tzenden Kl{\"a}ngen der heutigen Portale wie YouTube Alltag sind.}, subject = {HDTV}, language = {de} } @inproceedings{MansurovZhubanovaDigeletal.2008, author = {Mansurov, Zulkhair and Zhubanova, Azhar A. and Digel, Ilya and Artmann, Gerhard and Temiz Artmann, Ayseg{\"u}l and Savitskaja, Irina S. and Kozhalakova, A. A. and Kistaubaeva, Aida S.}, title = {The sorption of LPS toxic shock by nanoparticles on base of carbonized vegetable raw materials}, year = {2008}, abstract = {Immobilization of lactobacillus on high temperature carbonizated vegetable raw material (rice husk, grape stones) increases their physiological activity and the quantity of the antibacterial metabolits, that consequently lead to increase of the antagonistic activity of lactobacillus. It is implies that the use of the nanosorbents for the attachment of the probiotical microorganisms are highly perspective for decision the important problems, such as the probiotical preparations delivery to the right address and their attachment to intestines mucosa with the following detoxication of gastro-intestinal tract and the normalization of it's microecology. Besides that, thus, the received carbonizated nanoparticles have peculiar properties - ability to sorption of LPS toxical shock and, hence, to the detoxication of LPS.}, subject = {Kohlenstofffaser}, language = {en} } @inproceedings{MertenConradKaemperetal.2006, author = {Merten, Sabine and Conrad, Thorsten and K{\"a}mper, Klaus-Peter and Picard, Antoni and Sch{\"u}tze, Andreas}, title = {Virtual Technology Labs - an efficient tool for the preparation of hands-on-MEMS-courses in training foundries}, year = {2006}, abstract = {Hands-on-training in high technology areas is usually limited due to the high cost for lab infrastructure and equipment. One specific example is the field of MEMS, where investment and upkeep of clean rooms with microtechnology equipment is either financed by production or R\&D projects greatly reducing the availability for education purposes. For efficient hands-on-courses a MEMS training foundry, currently used jointly by six higher education institutions, was established at FH Kaiserslautern. In a typical one week course, students manufacture a micromachined pressure sensor including all lithography, thin film and packaging steps. This compact and yet complete program is only possible because participants learn to use the different complex machines in advance via a Virtual Training Lab (VTL). In this paper we present the concept of the MEMS training foundry and the VTL preparation together with results from a scientific evaluation of the VTL over the last three years.}, subject = {Virtuelles Laboratorium}, language = {en} } @inproceedings{MertenKaemperBrilletal.2003, author = {Merten, Sabine and K{\"a}mper, Klaus-Peter and Brill, Manfred and Picard, Antoni and Cassel, Detlev and Jentsch, Andreas and Rollwa, Markus}, title = {Virtuelle Sensor-Fertigung: Hightech mit LabVIEW}, year = {2003}, abstract = {Eine neue Generation von Praktika an Hochschulen w{\"a}chst heran. Moderne Wege beim Verstehen und Erlernen naturwissenschaftlicher Zusammenh{\"a}nge sowie industrieller Fertigungsprozesse sind gefordert. Das Technologiepraktikum „Virtuelle Sensor- Fertigung", entwickelt im Verbundprojekt INGMEDIA an den Fachhochschulen Aachen und Zweibr{\"u}cken, tr{\"a}gt als neuartiges Lern- und Lehrmodul dieser Forderung Rechnung. Die Studierenden lernen einen vollst{\"a}ndigen Fertigungsprozess mit Hilfe von virtuellen, in LabVIEW programmierten Maschinen kennen, bevor sie die reale Prozesskette im Reinraum durchf{\"u}hren.}, subject = {LabVIEW}, language = {de} } @inproceedings{MertenKaemperBrilletal.2003, author = {Merten, Sabine and K{\"a}mper, Klaus-Peter and Brill, Manfred and Picard, Antoni and Cassel, Detlev and Jentsch, Andreas and Rollwa, Markus}, title = {Vom virtuellen Wafer zum realen Drucksensor}, year = {2003}, abstract = {Das Technologiepraktikum „Virtuelle Sensor-Fertigung" ist ein Beispiel f{\"u}r die medientechnische Aufbereitung von Lern- und Lehrmaterial unter didaktischen Gesichtspunkten. Studierende lernen einen Fertigungsprozess mit Hilfe von virtuellen Maschinen kennen, bevor sie die reale Prozesskette im Laborpraktikum im Reinraum durchf{\"u}hren.}, subject = {Virtuelle Maschine}, language = {de} } @inproceedings{Mertens2000, author = {Mertens, Josef}, title = {Laminar leading edges: manufacturing, contamination, and operational aspects - results from the German RaWid programme}, year = {2000}, abstract = {RaWid was the German national technology programme on transonic aerodynamics and supporting technologies, lasting from 1995 to 1998. One of the main topics was laminar wing development. Besides aerodynamic design work, many operational aspects were investigated. A manufacturing concept was developed to be applied to operational laminar wings and empennages. It was built in a large scale manufacturing demonstrator with the aerodynamic shape of a 1,5 m section of the A320 fin nose. Tolerances in shape and roughness fulfilled all requirements. The construction can easily be adapted to varying stiffness and strength requirements. Weight and manufacturing costs are comparable to common nose designs. The mock-up to be designed in ALTTA is based on this manufacturing principle. Another critical point is contamination of suction surfaces. Several tests were performed to investigate perforated titanium suction surfaces at realistic operational conditions: - a one year flight test with a suction plate in the stagnation area of the Airbus "Beluga" - a one year test of several suction plates in a ground test near the airport - a one year test of a working suction ground test installation at all weather conditions. No critical results were found. There is no long term suction degradation visible. Icing conditions and ground de-icing fluids used on airports did not pose severe problems. Some problems detected require only respection of weak design constraints.}, subject = {Laminare Str{\"o}mung}, language = {en} } @inproceedings{MirmohseniRostamizadeh2006, author = {Mirmohseni, Abdolreza and Rostamizadeh, Kobra}, title = {Quartz crystal nanobalance in conjunction with principal component analysis for identification of volatile organic compounds}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:a96-opus-1434}, year = {2006}, abstract = {Quartz crystal nanobalance (QCN) sensors are considered as powerful masssensitive sensors to determine materials in the sub-nanogram level. In this study, a single piezoelectric quartz crystal nanobalance modified with polystyrene was employed to detect benzene, toluene, ethylbenzene and xylene (BTEX compounds). The frequency shift of the QCN sensor was found to be linear against the BTEX compound concentrations in the range about 1-45 mg l-1. The correlation coefficients for benzene, toluene, ethylbenzene, and xylene were 0.991, 0.9977, 0.9946 and 0.9971, respectively. The principal component analysis was also utilized to process the frequency response data of the single piezoelectric crystal at different times, considering to the different adsorption-desorption dynamics of BTEX compounds. Using principal component analysis, it was found that over 90\% of the data variance could still be explained by use of two principal components (PC1 and PC2). Subsequently, the successful identification of benzene and toluene was possible through the principal component analysis of the transient responses of the polystyrene modified QCN sensor. The results showed that the polystyrene-modified QCN had favorable identification and quantification performances for the BTEX compounds.}, subject = {Biosensor}, language = {en} } @inproceedings{NakagawaMichauxKallweitetal.2015, author = {Nakagawa, Masaki and Michaux, Frank and Kallweit, Stephan and Maeda, Kazuhiro}, title = {Unsteady flow measurements in the wake behind a wind-tunnel car model by using high-speed planar PIV}, series = {11TH International Symposium on Particle Image Velocimetry - PIV15 Santa Barbara, California, September 14-16, 2015}, booktitle = {11TH International Symposium on Particle Image Velocimetry - PIV15 Santa Barbara, California, September 14-16, 2015}, pages = {21 S.}, year = {2015}, abstract = {This study investigates unsteady characteristics of the wake behind a 28\%-scale car model in a wind tunnel using highspeed planar particle image velocimetry (PIV). The car model is based on a hatchback passenger car that is known to have relatively high fluctuations in its aerodynamic loads. This study primarily focuses on the lateral motion of the flow on the horizontal plane to determine the effect of the flow motion on the straight-line stability and the initial steering response of the actual car on a track. This paper first compares the flow fields in the wake behind the above mentioned model obtained using conventional and high-speed planar PIV, with sampling frequencies of 8 Hz and 1 kHz, respectively. Large asymmetrically coherent flow structures, which fluctuate at frequencies below 2 Hz, are observed in the results of highspeed PIV measurements, whereas conventional PIV is unable to capture these features of the flow owing to aliasing. This flow pattern with a laterally swaying motion is represented by opposite signs of cross-correlation coefficients of streamwise velocity fluctuations for the two sides of the car model. Effects of two aerodynamic devices that are known to reduce the fluctuation levels of the aerodynamic loads are then extensively investigated. The correlation analyses reveal that these devices indeed reduce the fluctuation levels of the flow and the correlation values around the rear combination-lamp, but it is found that the effects of these devices are different around the c-pillar.}, language = {en} } @inproceedings{NiemuellerFerreinReuteretal.2015, author = {Niemueller, Tim and Ferrein, Alexander and Reuter, Sebastian and Jeschke, Sabina and Lakemeyer, Gerhard}, title = {The RoboCup Logistics League as a Holistic Multi-Robot Smart Factory Benchmark}, series = {Proceedings of the IROS 2015 Open forum on evaluation of results, replication of experiments and benchmarking in robotics research}, booktitle = {Proceedings of the IROS 2015 Open forum on evaluation of results, replication of experiments and benchmarking in robotics research}, pages = {3 S.}, year = {2015}, abstract = {With autonomous mobile robots receiving increased attention in industrial contexts, the need for benchmarks becomes more and more an urgent matter. The RoboCup Logistics League (RCLL) is one specific industry-inspired scenario focusing on production logistics within a Smart Factory. In this paper, we describe how the RCLL allows to assess the performance of a group of robots within the scenario as a whole, focusing specifically on the coordination and cooperation strategies and the methods and components to achieve them. We report on recent efforts to analyze performance of teams in 2014 to understand the implications of the current grading scheme, and derived criteria and metrics for performance assessment based on Key Performance Indicators (KPI) adapted from classic factory evaluation. We reflect on differences and compatibility towards RoCKIn, a recent major benchmarking European project.}, language = {en} } @inproceedings{NaetherJuarezEmmerichetal.2006, author = {N{\"a}ther, Niko and Ju{\´a}rez, Leon M. and Emmerich, R{\"u}diger and Berger, J{\"o}rg and Friedrich, Peter and Sch{\"o}ning, Michael Josef}, title = {Detection of hydrogen peroxide (H2O2) at exposed temperatures for industrial processes}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:a96-opus-1418}, year = {2006}, abstract = {An H2O2 sensor for the application in industrial sterilisation processes has been developed. Therefore, automated sterilisation equipment at laboratory scale has been constructed using parts from industrial sterilisation facilities. In addition, a software tool has been developed for the control of the sterilisation equipment at laboratory scale. First measurements with the developed sensor set-up as part of the sterilisation equipment have been performed and the sensor has been physically characterised by optical microscopy and SEM.}, subject = {Biosensor}, language = {en} }