@inproceedings{OPUS4-260, title = {Alfha.net / Sektion Bauingenieurwesen: 2. [Zweiter] Erfahrungsaustausch am Fachbereich Bauingenieurwesen : Absolventen berichten aus der Praxis}, organization = {FH Aachen, University of Applied Sciences}, year = {2008}, abstract = {Inhaltsverzeichnis: Kettern, J{\"u}rgen : Grußwort des Dekans Kleiker, Walter : Grußwort des Sektionsleiters Bau des alpha.net Wijnhoven, Ralf : Bauausf{\"u}hrung von 14 Brunnenanlagen und 4 km Rohrleitung zur Regelung des Grundwasserstandes und der Vorflut in Voerde-Mehrum. S. 10-11 Ruwisch, Thomas : Spurplan{\"a}nderung im Bahnhof D{\"u}sseldorf-Gerresheim : Wusch, Planung, Planrecht und die Umwelt. S. 12-13. Rickes, Tanja : Bauablaufsteuerung einer Linienbaustelle am Beispiel des Fahrbahnbaus der "HSL-Zuid". S. 14-15. Plum, Andreas : Brandschutzingenieurwesen - Eine Ingenieurdisziplim hat die Akzeptanzschwelle {\"u}berschritten. Teil 1: Brandsimulationsberechnung. S. 18-19 Flesch, Tobias : Brandschutzingenieurwesen - Eine Ingenieurdisziplin hat die Akzeptanzschwelle {\"u}berschritten. Teil 2: Tragwerksbemessung im Brandfall. S. 20-21. M{\"u}ller, Bert : Neubau f{\"u}r die Mediengruppe RTL-Deutschland - High-Tech in dankmalgesch{\"u}tzter Fassade. S. 24-25. Hermens, Gereon : Erh{\"o}hung der Akzeptanz von Wasserkraft durch den Bau von Fischaufstiegsanlagen: Umweltschonende Energie f{\"u}r Natur und Klima. S. 26-27 Klitzing, Bastian : Kl{\"a}ranlagenoptimierung : Zukunftsweisende Planungen im Bereich Abwasserreinigung und Energiegewinnung. S. 28-29. Ginster, Marco : Die neue Rheinbr{\"u}cke Wesel. S. 32-33 Tilke, Hermann ; Wersch, Ralf van : Bauen f{\"u}r einen schnellen Sport. S. 34-35.}, subject = {Aachen / Fachhochschule Aachen / Fachbereich Bauingenieurwesen}, language = {de} } @inproceedings{OPUS4-299, title = {Alfha.net / Sektion Bauingenieurwesen: 3. [Dritter] Erfahrungsaustausch Fachbereich Bauingenieurwesen : Absolventen berichten aus der Praxis}, organization = {FH Aachen, University of Applied Sciences}, year = {2011}, abstract = {Inhaltsverzeichnis: 4 Grußwort des Dekans [Prof. Dr.-Ing. J{\"u}rgen Kettern] 4 Grußwort des Sektionsleiters "Bau" des alfha.net [Dipl.-Ing. Walter Kleiker] 5 Referenten 10 Referate 10 Die Statik bleibt dynamisch ... : Beispiele der Schwingungsanf{\"a}lligkeit von Br{\"u}cken, T{\"u}rmen und erdbebengef{\"a}hrdeten Geb{\"a}uden / Dipl.-Ing. Sebastian Gokus 12 Bau einer Biogasanlage / Dipl.-Ing. Michaela Schneider 16 Die neue Landmarke an der A4 / Dipl.-Ing. Franz-Josef T{\"u}rck-H{\"o}vener 18 Technical Due Diligence Real Estate : Technische Immobilienbewertung zur Vorbereitung einer Immobilientransaktion - Eine Teilanalyse von Chancen und Risiken im Due Diligence Prozess / Dipl.-Ing. Architektin Ebru Baykal M.Eng. 20 Die Deutsche Botschaft Kabul wird saniert / Dipl.-Ing. Stefanie Milde 24 Abfluss- und Strukturverbesserung am Niederrhein : Ein hydraulischer Ansatz zur Vereinbarkeit von Hochwasserschutz und Strukturverbesserung / Dr.-Ing. Gesa Kutschera 26 Um- und Ausbau des Autobahnkreuzes Aachen / Dipl.-Ing. Dirk Gobbel{\´e} 30 Textilbewehrter Beton in Großprojekten am Beispiel einer Fußg{\"a}ngerbr{\"u}cke / Dipl.-Ing. Andre Nacken 32 Kalkulation in der Bauindustrie / Dipl.-Ing. Alexander Spix 34 Phoenix-See Dortmund : Standort f{\"u}r die Zukunft / Dipl,-Ing. Stephan Bendel ; Dipl.-Ing. Sebastian Nyßen 38 alfha.net - Ein Verein stellt sich vor 39 Impressum}, subject = {Aachen / Fachhochschule Aachen / Fachbereich Bauingenieurwesen}, language = {de} } @inproceedings{OPUS4-161, title = {Alfha.net / Sektion Bauingenieurwesen: 1. [Erster] Erfahrungsaustausch : Absolventen des Fachbereichs Bauingenieurwesens berichten. 13. Oktober 2006}, organization = {Alfha.net / Sektion Bauingenieurwesen}, year = {2006}, abstract = {"Mit dem "1. Erfahrungsaustausch" im Fachbereich Bauingenieurwesen berichten Absolventen des Fachbereichs aus der Praxis. Mit diesem Treffen wird die wichtige Verbindung zwischen Hochschule, ihren Absolventen und der Berufspraxis zum besonderen Anliegen gemacht und besonders gest{\"a}rkt." Zitat Prof. Dr.- Ing. Hans Boegershausen, Dekan im Grußwort. Referenten und Themen: Wellmann, Judith: Perspektiven eines Bauingenieurs im konstruktiven Ingenieurbau Dirk Gobbele, Dirk: Planung der Umbaumaßnahme Hauptbahnhof Aachen Kretschmann, Lars: Planung und Bauleitung Buschtunnel Aachen Becker, Astrid: Anlagenmanagement und Aufgaben der DB Netz AG, Bauherrenvertretung und Wirtschaftlichkeit Plenz, Michael: Baurevision und Unternehmensberatung, T{\"a}tigkeit als {\"o}ffentlich bestellter und vereidigter Sachverst{\"a}ndiger Kl{\"o}cker, Alexander: Das Leitungsbauunternehmen - Unternehmerische Strategie als Zukunftssicherung T{\"u}rk, Roman: Sanierung von Hausanschl{\"u}ssen Bornebusch, Michael: Hydraulische und Hydrologische Modellsimulationen als Planungswerkzeug f{\"u}r Hochwasser-Schutz-Maßnahmen Himmerich, J{\"o}rg : Pipeline Integrity Management System - Probabilistische Bewertung von Bauwerken am Beispiel von Hochdruckleitungen.}, subject = {Aachen / Fachhochschule Aachen / Fachbereich Bauingenieurwesen}, language = {de} } @inproceedings{Andorfer2007, author = {Andorfer, Johann}, title = {Parallelisierung und verteiltes Rechnen - Chancen f{\"u}r die Langzeitsimulation}, year = {2007}, abstract = {Dipl.Ing. Johann Andorfer , Tandler.com GmbH, Buch a. Erlbach. Abstract zum 1. Aachener Softwaretag in der Wasserwirtschaft <1,2007, Aachen>. 2 S. (S. 136-137) Eine nachhaltige Sicherung der Funktionalit{\"a}t und der {\"o}kologischen Vertr{\"a}glichkeit eines mittleren bis großen Kanalnetzes erfordert eine umfassende und detaillierte Modellierung in Raum und Zeit. Um den in den Richtlinien geforderten statistischen Anforderungen gerecht zu werden und die j{\"a}hrlichen H{\"a}ufigkeiten, Mengen und Zeitr{\"a}ume der Belastungen erwartungstreu absch{\"a}tzen zu k{\"o}nnen, ist es zielf{\"u}hrend und notwendig, lange Zeitr{\"a}ume und die Gesamtheit der Einzugsgebiete m{\"o}glichst detailliert zu betrachten. Die hydraulische Funktionalit{\"a}t und Sicherheit soll meistens mit Hilfe zeitsymmetrischer (hydrodynamischer) Verfahren nur durch Betrachtung von Modellregen, allenfalls Regenserien, sichergestellt werden. F{\"u}r die Absch{\"a}tzung der j{\"a}hrlich zu erwartenden Emissionen in unsere nat{\"u}rlichen Gew{\"a}sser mit ihren Mengen, Frequenzen und Dauern werden normalerweise Langzeitsimulationen nat{\"u}rlicher Regenreihen {\"u}ber m{\"o}glichst große Zeitr{\"a}ume mit zeitasymmetrischen (hydrologischen) Verfahren durchgef{\"u}hrt. Die betrachteten Kanalnetze werden zumeist vereinfacht (Grobnetze), um die Rechenzeiten ertr{\"a}glicher zu gestalten. W{\"u}nschenswert w{\"a}re jedoch eine allen Anforderungen gerecht werdende wirklichkeitsnahe Modellierung des gesamten Kanalnetzes in all seinen Details, Vermaschungen und Wechselwirkungen (Feinnetz) und dessen zeitsymmetrische und damit verl{\"a}ssliche Simulation mit langj{\"a}hrigen Regenreihen. Bereits vor 15 Jahren wurde im Hause Tandler begonnen, die Berechnungssoftware durch Parallelisierung auf symmetrische Multiprozessortechnologien auszurichten. In neuerer Zeit h{\"a}lt diese Technik durch die Mehrkernprozessoren in normalen Notebooks und PCs Einzug in die Ingenieurb{\"u}ros und Abwasserbetriebe und sorgt schon f{\"u}r wesentliche Einsparungen an Rechenzeit. Doch erst durch die Kombination der Parallelisierung mit dem Prinzip des verteilten Rechnens (d.h. die Einbeziehung mehrerer PCs eines Netzwerkes in die Berechnung) erh{\"a}lt man die Chance ausreichend Rechenkapazit{\"a}t zur Verf{\"u}gung zu stellen, um nicht nur eine einzelne Langzeitsimulation eines Feinnetzes durchzuf{\"u}hren, sondern sogar mehrere Sanierungsalternativen zu {\"u}berpr{\"u}fen. Die zukunftsweisenden Arbeiten von Dipl. Math. R. Tandler auf diesem Gebiet sind Thema dieses Vortrags.}, subject = {Kanalisation}, language = {de} } @inproceedings{AridaKloockSchoening2006, author = {Arida, Hassan A. and Kloock, Joachim P. and Sch{\"o}ning, Michael Josef}, title = {Novel organic membrane-based thin-film microsensors for the determination of heavy metal cations}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:a96-opus-1545}, year = {2006}, abstract = {A first step towards the fabrication and electrochemical evaluation of thin-film microsensors based on organic PVC membranes for the determination of Hg(II), Cd(II), Pb(II) and Cu(II) ions in solutions has been realised. The membrane-coating mixture used in the preparation of this new type of microsensors is incorporating PVC as supporting matrix, o-nitrophenyloctylether (o-NPOE) as solvent mediator and a recently synthesized Hg[dimethylglyoxime(phene)]2+ and Bis-(4-hydroxyacetophenone)-ethylenediamine as electroactive materials for Hg(II) and Cd(II), respectively. A set of three commercialised ionophores for Cd(II), Pb(II) and Cu(II) has been also used for comparison. Thin-film microsensors based on these membranes showed a Nernstian response of slope (26-30 mV/dec.) for the respective tested cations. The potentiometric response characteristics (linear range, pH range, detection limit and response time) are comparable with those obtained by conventional membranes as well as coated wire electrodes prepared from the same membrane. The realisation of the new organic membrane-based thin-film microsensors overcomes the problem of an insufficient selectivity of solid-state-based thinfilm sensors.}, subject = {Biosensor}, language = {en} } @inproceedings{ArinkinDigel2009, author = {Arinkin, Vladimir and Digel, Ilya}, title = {Water bridge phenomenon : [abstract]}, year = {2009}, abstract = {One of interesting but not well known water properties is related to appearance of highly ordered structures in response to strong electrical field. In 1893 Sir William Armstrong placed a cotton thread between two wine glasses filled with chemically pure water. When high DC voltage was applied between the glasses, a connection consisting of water formed, producing a "water bridge"}, subject = {Hydrodynamik}, language = {en} } @inproceedings{ArtmannDigelLinderetal.2011, author = {Artmann, Gerhard and Digel, Ilya and Linder, Peter and Temiz Artmann, Ayseg{\"u}l}, title = {Biophysical and Engineering Contributions to Plant Research}, year = {2011}, abstract = {Tests with palm tree leaves have just started yet and scan data are in the process to be analyzed. The final goal of future project for palm tree gender and species recognition will be to develop optical scanning technology to be applied to date palm tree leaves for in-situ screening purposes. Depending on the software used and the particular requirements of the users the technology potentially shall be able to identify palm tree diseases, palm tree gender, and species of young date palm trees by scanning leaves.}, subject = {Pflanzenphysiologie}, language = {en} } @inproceedings{ArtmannStadlerEmbsetal.2010, author = {Artmann, Gerhard and Stadler, Andreas M. and Embs, Jan P. and Zaccai, Giuseppe and B{\"u}ldt, Georg and Digel, Ilya and Temiz Artmann, Ayseg{\"u}l}, title = {The crucial role of water in a phase transition of hemoglobin at body temperature : [abstract]}, year = {2010}, abstract = {The observation of a temperature transition of hemoglobin occurring at a critical temperature close to body temperature}, subject = {H{\"a}moglobin}, language = {en} } @inproceedings{BaaderReiswichBartschetal.2018, author = {Baader, Fabian and Reiswich, M. and Bartsch, M. and Keller, D. and Tiede, E. and Keck, G. and Demircian, A. and Friedrich, M. and Dachwald, Bernd and Sch{\"u}ller, K. and Lehmann, R. and Chojetzki, R. and Durand, C. and Rapp, L. and Kowalski, Julia and F{\"o}rstner, R.}, title = {VIPER - Student research on extraterrestrical ice penetration technology}, series = {Proceedings of the 2nd Symposium on Space Educational Activities}, booktitle = {Proceedings of the 2nd Symposium on Space Educational Activities}, pages = {1 -- 6}, year = {2018}, abstract = {Recent analysis of scientific data from Cassini and earth-based observations gave evidence for a global ocean under a surrounding solid ice shell on Saturn's moon Enceladus. Images of Enceladus' South Pole showed several fissures in the ice shell with plumes constantly exhausting frozen water particles, building up the E-Ring, one of the outer rings of Saturn. In this southern region of Enceladus, the ice shell is considered to be as thin as 2 km, about an order of magnitude thinner than on the rest of the moon. Under the ice shell, there is a global ocean consisting of liquid water. Scientists are discussing different approaches the possibilities of taking samples of water, i.e. by melting through the ice using a melting probe. FH Aachen UAS developed a prototype of maneuverable melting probe which can navigate through the ice that has already been tested successfully in a terrestrial environment. This means no atmosphere and or ambient pressure, low ice temperatures of around 100 to 150K (near the South Pole) and a very low gravity of 0,114 m/s^2 or 1100 μg. Two of these influencing measures are about to be investigated at FH Aachen UAS in 2017, low ice temperature and low ambient pressure below the triple point of water. Low gravity cannot be easily simulated inside a large experiment chamber, though. Numerical simulations of the melting process at RWTH Aachen however are showing a gravity dependence of melting behavior. Considering this aspect, VIPER provides a link between large-scale experimental simulations at FH Aachen UAS and numerical simulations at RWTH Aachen. To analyze the melting process, about 90 seconds of experiment time in reduced gravity and low ambient pressure is provided by the REXUS rocket. In this time frame, the melting speed and contact force between ice and probes are measured, as well as heating power and a two-dimensional array of ice temperatures. Additionally, visual and infrared cameras are used to observe the melting process.}, language = {en} } @inproceedings{BagheriSchleupenDahmannetal.2015, author = {Bagheri, Mohsen and Schleupen, Josef and Dahmann, Peter and Kallweit, Stephan}, title = {A multi-functional device applying for the safe maintenance at high-altitude on wind turbines}, series = {20th International Conference on Composite Materials : Copenhagen, 19 - 24th July 2015}, booktitle = {20th International Conference on Composite Materials : Copenhagen, 19 - 24th July 2015}, organization = {International Conference on Composite Materials <20, 2015, Copenhagen>}, pages = {1 -- 6}, year = {2015}, language = {en} } @inproceedings{BagheriSchleupenDahmannetal.2016, author = {Bagheri, Mohsen and Schleupen, Josef and Dahmann, Peter and Kallweit, Stephan}, title = {Kletternde Wartungsplattform f{\"u}r die wetterunabh{\"a}ngige Instandhaltung von Rotorbl{\"a}ttern an Windenergieanlagen - SMART}, series = {AKIDA 2016 Aachener Kolloquium f{\"u}r Instandhaltung, Diagnose und Anlagen{\"u}berwachung (AKIDA) am 15. und 16.11.2016, Technologiezentrum Aachen}, booktitle = {AKIDA 2016 Aachener Kolloquium f{\"u}r Instandhaltung, Diagnose und Anlagen{\"u}berwachung (AKIDA) am 15. und 16.11.2016, Technologiezentrum Aachen}, pages = {21 Folien}, year = {2016}, abstract = {In Deutschland liegt der Anteil der Windkraft an der Gesamtstromerzeugung bei 13,3\% mit mehr als 25.000 installierten Windenergieanlagen (WEA). Weltweit erf{\"a}hrt die Windbranche ein rasantes Wachstum. Indien und China berichten eine j{\"a}hrliche Wachstumsrate an Neuinstallationen von 45\%. Die Technologie zur Erzeugung elektrischer Energie aus Windkraft ist noch vergleichsweise jung. Durch die weltweit steigende Anzahl an Windenergieanlagen w{\"a}chst zunehmend der Bedarf an innovativen Wartungsl{\"o}sungen. Komponenten wie Generator oder Getriebe sind inzwischen weitestgehend ausgereift. Der Fokus richtet sich zunehmend auf die wesentliche Kernkomponente - die Rotorbl{\"a}tter. Industriekletterer inspizieren die Rotorbl{\"a}tter oder T{\"u}rme i.d.R. in einem zwei Jahres Rhythmus. Sie werden zunehmend durch Seilarbeitsb{\"u}hnen unterst{\"u}tzt. F{\"u}r gr{\"o}ßere Reparaturen kommen Kr{\"a}ne zum Einsatz, mit denen das Rotorblatt f{\"u}r die Instandhaltung demontiert wird. Die Standardinspektion besteht aus Sicht- und Klopfpr{\"u}fung der Rotorblattoberfl{\"a}che und ist nur bei sehr ruhiger Wetterlage durchf{\"u}hrbar. Seit September 2014 wird das Forschungsprojekt SMART (Scanning, Monitoring, Analysis, Repair and Transportation), Entwicklung einer Wartungsplattform f{\"u}r WEA, vom BMWi gef{\"o}rdert. Das Konsortium besteht aus zwei Firmen und der Fachhochschule Aachen. Die SMART-Anlage klettert reibschl{\"u}ssig am Turm der WEA mittels speziellen Kettenfahrwerken (Abbildung) auf- und abw{\"a}rts. Ein ringf{\"o}rmiges Spannsystems, basierend auf dem Konzept der „N{\"u}rnberger"-Schere, erzeugt die erforderliche Anpresskraft f{\"u}r den Kletterprozess. Wettergesch{\"u}tzte Arbeitskabinen erm{\"o}glichen die ganzj{\"a}hrige Instandhaltung von Rotorbl{\"a}ttern und ebenso T{\"u}rmen. Dadurch k{\"o}nnen Wartungsarbeiten auf 24 Stunden am Tag ausgeweitet werden. Der kombinierte Einsatz (Sensorfusion) bildgebender Messtechnik wie Thermografie, Ultraschall, und Terahertz in der Arbeitskabine kann die Dokumentation, Effizienz und Qualit{\"a}t der Instandhaltungsarbeiten erheblich verbessern. Langfristiges Ziel von SMART ist ein Condition Monitoring f{\"u}r Rotorbl{\"a}tter und T{\"u}rme auf Basis digitalisierter dreidimensionaler Volumenscans. Der kooperative Einsatz mit UAVs erweitert die Instandhaltungsstrategie. UAVs erm{\"o}glichen die schnelle, kosteng{\"u}nstige globale optische Inspektion von Rotorblattoberfl{\"a}chen zur Detektion potentieller Fehlstellen. Der „Proof-of-Concept" Meilenstein wurde mit der Demonstration eines funktionsf{\"a}higen Modells im Dezember 2015 erfolgreich abgeschlossen.}, language = {de} } @inproceedings{BallmannRaatschenStaat1985, author = {Ballmann, J. and Raatschen, Hans-J{\"u}rgen and Staat, Manfred}, title = {High stress intensities in focussing zones of waves}, doi = {10.1016/B978-0-444-42520-1.50015-3}, year = {1985}, abstract = {The propagation of mechanical waves in plates of isotropic elastic material is investigated. After a short introduction to the understanding of focussing of stress waves in a plate with a curved boundary the method of characteristics is applied to a plate of hyperelastic material. Using this method the propagation of acceleration waves is discussed. Based on this a numerical difference scheme is developed for solving initial-boundary-value problems and applied to two examples: propagation of a point disturbance in a homogeneously finitely strained non-linear elastic plate and geometrical focussing in al linear elastic plate.}, subject = {Technische Mechanik}, language = {en} } @inproceedings{BarekFischerNavratiletal.2006, author = {Barek, Jiri and Fischer, Jan and Navratil, Tomas and Peckova, Karolina and Yosypchuk, Bogdan}, title = {Silver solid amalgam electrodes as sensors for chemical carcinogens}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:a96-opus-1554}, year = {2006}, abstract = {The applicability of differential pulse voltammetry (DPV) and adsorptive stripping voltammetry (AdSV) at a non-toxic meniscus-modified silver solid amalgam electrode (m-AgSAE) for the determination of trace amounts of genotoxic substances was demonstrated on the determination of micromolar and submicromolar concentrations of 3-nitrofluoranthene using methanol - 0.01 mol L-1 NaOH (9:1) mixture as a base electrolyte and of Ostazine Orange using 0.01 mol L-1 NaOH as a base electrolyte.}, subject = {Biosensor}, language = {en} } @inproceedings{BaronasIvanauskasKulys2006, author = {Baronas, Romas and Ivanauskas, Feliksas and Kulys, Juozas}, title = {Mathematical modeling of biosensors based on an array of enzyme microreactors}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:a96-opus-1569}, year = {2006}, abstract = {This paper presents a two-dimensional-in-space mathematical model of biosensors based on an array of enzyme microreactors immobilised on a single electrode. The modeling system acts under amperometric conditions. The microreactors were modeled by particles and by strips. The model is based on the diffusion equations containing a nonlinear term related to the Michaelis-Menten kinetics of the enzymatic reaction. The model involves three regions: an array of enzyme microreactors where enzyme reaction as well as mass transport by diffusion takes place, a diffusion limiting region where only the diffusion takes place, and a convective region, where the analyte concentration is maintained constant. Using computer simulation, the influence of the geometry of the microreactors and of the diffusion region on the biosensor response was investigated. The digital simulation was carried out using the finite difference technique.}, subject = {Biosensor}, language = {en} } @inproceedings{BassamDigelArtmann2009, author = {Bassam, Rasha and Digel, Ilya and Artmann, Gerhard}, title = {Effect of nitric oxide on protein thermal stability : [abstract]}, year = {2009}, abstract = {As a deduction from these results, we can conclude that proteins mainly in vitro, denaturate totally at a temperature between 57°C -62°C, and they also affected by NO and different ions types. In which mainly, NO cause earlier protein denaturation, which means that, NO has a destabilizing effect on proteins, and also different ions will alter the protein denaturation in which, some ions will cause earlier protein denaturation while others not.}, subject = {Stickstoffmonoxid}, language = {en} } @inproceedings{Becker2006, author = {Becker, Astrid}, title = {Anlagenmanagement und Aufgaben der DB Netz AG, Bauherrenvertretung und Wirtschaftlichkeit}, year = {2006}, abstract = {In: Alfha.net / Sektion Bauingenieurwesen: 1. [Erster] Erfahrungsaustausch : Absolventen des Fachbereichs Bauingenieurwesens berichten. 13. Oktober 2006. S. 18 {\"U}bersicht des Vortrags}, subject = {Anlagenwirtschaft}, language = {de} } @inproceedings{BeckerHoefkenSchuetzetal.2016, author = {Becker, Sebastian and H{\"o}fken, Hans-Wilhelm and Sch{\"u}tz, Philip and Schuba, Marko}, title = {IT-forensische Erkennung modifizierter Android-Apps}, series = {Proceedings of DACH Security 2016, Klagenfurt, Austria, September 2016}, booktitle = {Proceedings of DACH Security 2016, Klagenfurt, Austria, September 2016}, editor = {Schartner, P.}, pages = {120 -- 125}, year = {2016}, abstract = {Malware auf Smartphones ist ein Problem, dem auch Strafverfolgungsbeh{\"o}rden immer h{\"a}ufiger gegen{\"u}berstehen. Insbesondere Telefone, bei denen potentiell schadhafte Apps zu einem finanziellen Schaden gef{\"u}hrt haben, finden sich auf den Schreibtischen der Polizei wieder. Dabei m{\"u}ssen die Ermittler m{\"o}glichst schnell und gezielt erkennen k{\"o}nnen, ob eine App tats{\"a}chlich schadhaft manipuliert wurde, was manipuliert wurde und mit wem die App kommuniziert. Klassische Malware-Erkennungsverfahren helfen zwar bei der generellen Erkennung schadhafter Software, sind aber f{\"u}r die polizeiliche Praxis nicht geeignet. Dieses Paper stellt ein Programm vor, welches gerade die forensischen Fragestellungen ber{\"u}cksichtigt und so f{\"u}r den Einsatz in der Strafverfolgung in Frage kommt.}, language = {de} } @inproceedings{BehrensFrentzelKern2009, author = {Behrens, J{\"o}rg and Frentzel, Ralf and Kern, Alexander}, title = {Simulation der transienten Spannungsverl{\"a}ufe im Eigenbedarfsnetz eines Großkraftwerks bei einem kraftwerksnahen Blitzeinschlag in die Hochspannungs-Freileitung}, isbn = {978-3-8007-3197-8}, year = {2009}, abstract = {8. VDE/ABB-Blitzschutztagung, 29. - 30. Oktober 2009 in Neu-Ulm. Blitzschutztagung <8, 2009, Neu-Ulm> Berlin : VDE Verl. 2009 Großkraftwerke k{\"o}nnen durch Blitzentladungen mit potentiellen Auswirkungen auf deren Verf{\"u}gbarkeit und Sicherheit gef{\"a}hrdet werden. Ein sehr spezielles Szenario, welches aus aktuellem Anlass zu untersuchen war, betrifft den kraftwerksnahen Blitzeinschlag in die Hochspannungs-Freileitung am Netzanschluss der Anlage. Wird nun noch ein sogenannter Schirmfehler unterstellt, d.h. der direkte Blitzeinschlag erfolgt in ein Leiterseil des Hoch- bzw. H{\"o}chstspannungsnetzes und nicht in das dar{\"u}ber gespannte Erdseil, so bedeutet dies eine extreme elektromagnetische Einwirkung. Der vorliegende Beitrag befasst sich mit der Simulation eines solchen Blitzeinschlages und dessen Auswirkungen auf den Netzanschluss und die Komponenten der elektrischen Eigenbedarfsanlagen eines Kraftwerks auf den unterlagerten Spannungsebenen. Die dabei gewonnenen Erkenntnisse lassen sich ohne Einschr{\"a}nkungen auf Industrieanlagen mit Mittelspannungs-Netzanschluss und ohne eigener Stromversorgung {\"u}bertragen.}, subject = {Blitzschutz}, language = {de} } @inproceedings{BergmannGoettenBraunetal.2022, author = {Bergmann, Ole and G{\"o}tten, Falk and Braun, Carsten and Janser, Frank}, title = {Comparison and evaluation of blade element methods against RANS simulations and test data}, series = {CEAS Aeronautical Journal}, volume = {13}, booktitle = {CEAS Aeronautical Journal}, publisher = {Springer}, address = {Wien}, issn = {1869-5590 (Online)}, doi = {10.1007/s13272-022-00579-1}, pages = {535 -- 557}, year = {2022}, abstract = {This paper compares several blade element theory (BET) method-based propeller simulation tools, including an evaluation against static propeller ground tests and high-fidelity Reynolds-Average Navier Stokes (RANS) simulations. Two proprietary propeller geometries for paraglider applications are analysed in static and flight conditions. The RANS simulations are validated with the static test data and used as a reference for comparing the BET in flight conditions. The comparison includes the analysis of varying 2D aerodynamic airfoil parameters and different induced velocity calculation methods. The evaluation of the BET propeller simulation tools shows the strength of the BET tools compared to RANS simulations. The RANS simulations underpredict static experimental data within 10\% relative error, while appropriate BET tools overpredict the RANS results by 15-20\% relative error. A variation in 2D aerodynamic data depicts the need for highly accurate 2D data for accurate BET results. The nonlinear BET coupled with XFOIL for the 2D aerodynamic data matches best with RANS in static operation and flight conditions. The novel BET tool PropCODE combines both approaches and offers further correction models for highly accurate static and flight condition results.}, language = {en} } @inproceedings{BhattaraiFrotscherSoraetal.2014, author = {Bhattarai, Aroj and Frotscher, Ralf and Sora, M.-C. and Staat, Manfred}, title = {A 3D finite element model of the female pelvic floor for the reconstruction of urinary incontinence}, series = {11th World Congress on Computational Mechanics (WCCM XI) ; 5th European Conference on Computational Mechanics (ECCM V) ; 6th European Conference on Computational Fluid Dynamics (ECFD VI) ; July 20-25, 2014, Barcelona}, booktitle = {11th World Congress on Computational Mechanics (WCCM XI) ; 5th European Conference on Computational Mechanics (ECCM V) ; 6th European Conference on Computational Fluid Dynamics (ECFD VI) ; July 20-25, 2014, Barcelona}, editor = {Onate, E.}, organization = {World Congress on Computational Mechanics <11, 2014, Barcelona>}, pages = {1 -- 12}, year = {2014}, language = {en} } @inproceedings{BonneyHoefkenPaffenetal.2015, author = {Bonney, Gregor and H{\"o}fken, Hans-Wilhelm and Paffen, Benedikt and Schuba, Marko}, title = {ICS/SCADA Security - Analysis of a Beckhoff CX5020 PLC}, series = {1st International Conference on Information Systems Security and Privacy : ICISSP 2015}, booktitle = {1st International Conference on Information Systems Security and Privacy : ICISSP 2015}, organization = {International Conference on Information Systems Security and Privacy <1, 2015, Angers>}, pages = {1 -- 6}, year = {2015}, language = {en} } @inproceedings{BonneyNagelSchuba2016, author = {Bonney, Gregor and Nagel, Stefan and Schuba, Marko}, title = {Risiko Smart Home - Angriff auf ein Babymonitorsystem}, series = {Proceedings of DACH Security 2016, Klagenfurt, Austria, September 2016}, booktitle = {Proceedings of DACH Security 2016, Klagenfurt, Austria, September 2016}, editor = {Schartner, P.}, pages = {371 -- 378}, year = {2016}, abstract = {Unser Zuhause wird zunehmend intelligenter. Smart Homes bieten uns die Steuerung von Haus- oder Unterhaltungstechnik bequem vom Smartphone aus. Junge Familien nutzen die Technologie, um mittels vernetzten Babymonitorsystemen ihren Nachwuchs von {\"u}berall aus im Blick zu haben. Davon auszugehen, dass solche Systeme mit einem Fokus auf Sicherheit entwickelt wurden, um die sehr pers{\"o}nlichen Daten zu sch{\"u}tzen, ist jedoch ein Trugschluss. Die Untersuchung eines handels{\"u}blichen und keineswegs billigen Systems zeigt, dass die Ger{\"a}te sehr einfach kompromittiert und missbraucht werden k{\"o}nnen.}, language = {de} } @inproceedings{BooysenMathewKnoxetal.2015, author = {Booysen, Tracy and Mathew, Thomas and Knox, Greig and Fong, W. K. and St{\"u}ttgen, Marcel and Ferrein, Alexander and Steinbauer, Gerald}, title = {The Scarab Project}, series = {ICRA 2015 Developing Countries Forum}, booktitle = {ICRA 2015 Developing Countries Forum}, pages = {3 S.}, year = {2015}, abstract = {Urban Search and Rescue (USAR) is an active research field in the robotics community. Despite recent advances for many open research questions, these kind of systems are not widely used in real rescue missions. One reason is that such systems are complex and not (yet) very reliable; another is that one has to be an robotic expert to run such a system. Moreover, available rescue robots are very expensive and the benefits of using them are still limited. In this paper, we present the Scarab robot, an alternative design for a USAR robot. The robot is light weight, humanpackable and its primary purpose is that of extending the rescuer's capability to sense the disaster site. The idea is that a responder throws the robot to a certain spot. The robot survives the impact with the ground and relays sensor data such as camera images or thermal images to the responder's hand-held control unit from which the robot can be remotely controlled.}, language = {en} } @inproceedings{Bornebusch2006, author = {Bornebusch, Michael}, title = {Hydraulische und hydrologische Modellsimulation als Planungswerkzeug f{\"u}r Hochwasser-Schutz-Massnahmen}, year = {2006}, abstract = {In: Alfha.net / Sektion Bauingenieurwesen: 1. [Erster] Erfahrungsaustausch : Absolventen des Fachbereichs Bauingenieurwesens berichten. 13. Oktober 2006. S. 25-27. Zusammenfassung des Vortrags.}, subject = {Hochwasserschutz}, language = {de} } @inproceedings{Bruessermann2005, author = {Br{\"u}ssermann, Klaus}, title = {Platform of Excellence in "Energy and Environment"}, year = {2005}, abstract = {The Ministry of Science and Research in North Rhine-Westphalia created eight platforms of excellence, one in the research area „Energy and Environment" in 2002 at ACUAS. This platform concentrates the research and development of 13 professors in J{\"u}lich and Aachen and of two scientific institutes with different topics: - NOWUM-Energy with emphasis on efficient and economic energy conversion - The Solar Institute J{\"u}lich - SIJ - being the largest research institute in the field of renewables at a University of Applied Sciences in Germany With this platform each possible energy conversion - nuclear, fossil, renewable- can be dealt with to help solving the two most important problems of mankind, energy and potable water. At the CSE are presented the historical development, some research results and the combined master studies in „Energy Systems" and „Nuclear Applications"}, subject = {Energietechnik}, language = {en} } @inproceedings{BruessermannDeuster2005, author = {Br{\"u}ssermann, Klaus and Deuster, M.}, title = {Temperature measurement to optimise the burning process}, year = {2005}, abstract = {One of the most important parameters in a burning chamber - in power stations, in waste to energy plants - is the temperature. This temperature is in the range of 700-1500 °C - one of the most advanced measuring methods being the acoustic pyrometry with the possibility of producing temperature mapping in one level of the burning chamber - comparable to computer tomography. The results of these measurements discussed in the presentation can be used - to fulfil the legal requirements in the FRG or in the EU - to equalise the temperature in one level of the burning chamber to optimise the steam production (better efficiency of the plant) and to minimise the production of temperature controlled flue gas components (NO, CO a. o.) - to control the SNCR-process if used.}, subject = {Pyrometrie}, language = {en} } @inproceedings{BukhariYang2006, author = {Bukhari, Syed Faisal Ahmed and Yang, Wuqiang}, title = {Multi-interface level sensors and new development in monitoring and control of oil separators}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:a96-opus-1498}, year = {2006}, abstract = {In the oil industry, huge saving may be made if suitable multi-interface level measurement systems are employed for effectively monitoring crude oil separators and efficient control of their operation. A number of techniques, e.g. externally mounted displacers, differential pressure transmitters and capacitance rod devices, have been developed to measure the separation process with gas, oil, water and other components. Because of the unavailability of suitable multi-interface level measurement systems, oil separators are currently operated by the trial-and-error approach. In this paper some conventional techniques, which have been used for level measurement in industry, and new development are discussed.}, subject = {Biosensor}, language = {en} } @inproceedings{Bung2014, author = {Bung, Daniel B.}, title = {Observations on non-aerated flow and air entrainment on moderately sloped stepped spillways}, series = {7th Chinese-German Joint Symposium on Hydraulic and Ocean Engineering : 8. - 12. Sept. 2014, Hannover}, booktitle = {7th Chinese-German Joint Symposium on Hydraulic and Ocean Engineering : 8. - 12. Sept. 2014, Hannover}, organization = {Chinese-German Joint Symposium on Hydraulic and Ocean Engineering <7, 2014, Hannover>}, pages = {1 -- 8}, year = {2014}, language = {en} } @inproceedings{BurgazziFioriniDeMagistrisetal.1998, author = {Burgazzi, L. and Fiorini, F. and De Magistris, W. (u.a.) and Lensa, W. von and Staat, Manfred and Altes, J.}, title = {Reliability Assessment of Passive Safety Systems}, series = {Proceedings of the 6th International Conference on Nuclear Engineering : ICONE : May 10 - 14, 1998, San Diego, Calif.}, booktitle = {Proceedings of the 6th International Conference on Nuclear Engineering : ICONE : May 10 - 14, 1998, San Diego, Calif.}, publisher = {American Society of Mechanical Engineers}, address = {New York}, year = {1998}, language = {en} } @inproceedings{ButenwegKleemannAltayetal.2013, author = {Butenweg, Christoph and Kleemann, Anne and Altay, Okyay and Renault, Philippe}, title = {Simulation of impact-loads on reinforced concrete structural elements}, series = {22nd International Conference on Structural Mechanics in Reactor Technology 2013 : (SMiRT 22) ; San Francisco, California, USA, 18 - 23 August 2013}, booktitle = {22nd International Conference on Structural Mechanics in Reactor Technology 2013 : (SMiRT 22) ; San Francisco, California, USA, 18 - 23 August 2013}, organization = {International Conference on Structural Mechanics in Reactor Technology, SMIRT <22, 2013, San Francisco, Calif.>}, pages = {1 -- 10}, year = {2013}, language = {en} } @inproceedings{ButenwegKuhlmannLopezetal.2003, author = {Butenweg, Christoph and Kuhlmann, Winfried and Lopez, M. and Fernandez, S.}, title = {Seismic vulnerability assessment of the Aachen Cathedral based on measurements and numerical simulations}, series = {International Conference on Earthquake Engineering to mark 40 years from Catastrophic 1963 Skopje Earthquake, Skopje 2003}, booktitle = {International Conference on Earthquake Engineering to mark 40 years from Catastrophic 1963 Skopje Earthquake, Skopje 2003}, organization = {International conference in earthquake engineering to mark 40 years from catastrophic 1963 Skopje earthquake <2003, Skopje>}, pages = {1 -- 8}, year = {2003}, language = {en} } @inproceedings{ButenwegRosinKubalski2013, author = {Butenweg, Christoph and Rosin, Julia and Kubalski, Thomas}, title = {Seismic response of conventional and base-isolated liquid storage tanks}, series = {International Conference on Earthquake Engineering : 29.-31.05.2013, Skopje, Mazedonien}, booktitle = {International Conference on Earthquake Engineering : 29.-31.05.2013, Skopje, Mazedonien}, organization = {International Conference on Earthquake Engineering <2013, Skopje>}, pages = {1 -- 8}, year = {2013}, language = {en} } @inproceedings{ButenwegSadeghAzarMeskouris2004, author = {Butenweg, Christoph and Sadegh-Azar, H. and Meskouris, Konstantin}, title = {Seismische Vulnerabilit{\"a}t von bestehenden Bauwerken}, series = {5. Forum und Gefahrentag : auf der Suche nach dem Risiko : ein aktuelles Symposium zu Fragen der Risikowahrnehmung und Katastrophenvorsorge in Deutschland, ZDF Mainz Lerchenberg, 13. - 14. Oktober, 2004}, booktitle = {5. Forum und Gefahrentag : auf der Suche nach dem Risiko : ein aktuelles Symposium zu Fragen der Risikowahrnehmung und Katastrophenvorsorge in Deutschland, ZDF Mainz Lerchenberg, 13. - 14. Oktober, 2004}, pages = {1}, year = {2004}, language = {de} } @inproceedings{BuehlerLeandroBungetal.2015, author = {B{\"u}hler, P. and Leandro, J. and Bung, Daniel B. and Lopes, P. and Carvalho, R.}, title = {Measuring void fraction of a stepped spillway with non-intrusive methods using different image resolutions}, series = {2nd International Workshop on Hydraulic Structures : Data Validation : Coimbra, Portugal, 8-9 May 2015}, booktitle = {2nd International Workshop on Hydraulic Structures : Data Validation : Coimbra, Portugal, 8-9 May 2015}, organization = {International Workshop on Hydraulic Structures : Data Validation <2, 2015, Coimbra>}, pages = {1 -- 8}, year = {2015}, language = {en} } @inproceedings{BuehrigPolaczekRoethBaumeisteretal.2006, author = {B{\"u}hrig-Polaczek, Andreas and R{\"o}th, Thilo and Baumeister, E. and Nowack, N. and S{\"u}ßmann, Torsten}, title = {Hybride Leichtbaustrukturen in Stahlblech-Leichtmetall Verbundguss}, year = {2006}, abstract = {Stahl-Leichtmetall-Hybride mit hohen Leistungspotentialen k{\"o}nnen heute wirtschaftlich abgebildet werden und eignen sich m{\"o}glicherweise auch zum Einsatz in Fahrzeugkarosserien}, subject = {Karosseriebau}, language = {de} } @inproceedings{ChaiybounTrauteKiesewetteretal.2006, author = {Chaiyboun, Ali and Traute, R{\"u}diger and Kiesewetter, Olaf and Ahlers, Simon and M{\"u}ller, Gerhard and Doll, Theodor}, title = {Modular analytical multicomponent analysis in gas sensor arrays}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:a96-opus-1358}, year = {2006}, abstract = {A multi-sensor system is a chemical sensor system which quantitatively and qualitatively records gases with a combination of cross-sensitive gas sensor arrays and pattern recognition software. This paper addresses the issue of data analysis for identification of gases in a gas sensor array. We introduce a software tool for gas sensor array configuration and simulation. It concerns thereby about a modular software package for the acquisition of data of different sensors. A signal evaluation algorithm referred to as matrix method was used specifically for the software tool. This matrix method computes the gas concentrations from the signals of a sensor array. The software tool was used for the simulation of an array of five sensors to determine gas concentration of CH4, NH3, H2, CO and C2H5OH. The results of the present simulated sensor array indicate that the software tool is capable of the following: (a) identify a gas independently of its concentration; (b) estimate the concentration of the gas, even if the system was not previously exposed to this concentration; (c) tell when a gas concentration exceeds a certain value. A gas sensor data base was build for the configuration of the software. With the data base one can create, generate and manage scenarios and source files for the simulation. With the gas sensor data base and the simulation software an on-line Web-based version was developed, with which the user can configure and simulate sensor arrays on-line.}, subject = {Biosensor}, language = {en} } @inproceedings{ChudobaButenwegKuhlmann2002, author = {Chudoba, Rostislav and Butenweg, Christoph and Kuhlmann, Wolfram}, title = {Technical information system for collaborative material research}, series = {Sixth International Conference on Computational Structures Technology : [Prague, Czech Republic, 4 - 6 September 2002]}, booktitle = {Sixth International Conference on Computational Structures Technology : [Prague, Czech Republic, 4 - 6 September 2002]}, organization = {International Conference on Computational Structures Technology <6, 2002, Prag>}, pages = {1 -- 11}, year = {2002}, language = {en} } @inproceedings{DachwaldMikuckiTulaczyketal.2012, author = {Dachwald, Bernd and Mikucki, Jill A. and Tulaczyk, Slawek and Digel, Ilya and Feldmann, Marco and Espe, Clemens and Plescher, Engelbert and Xu, Changsheng}, title = {IceMole - a maneuverable probe for clean in-situ analysis and sampling of subsurface ice and subglacial aquatic ecosystems : extended abstract / SCAR Open Science Conference 2012, Session 29: Advancing Clean Technologies for Exploration of Glacial Aquatic Ecosystems}, year = {2012}, abstract = {The "IceMole" is a novel maneuverable subsurface ice probe for clean in-situ analysis and sampling of subsurface ice and subglacial water/brine. It is developed and build at FH Aachen University of Applied Sciences' Astronautical Laboratory. A first prototype was successfully tested on the Swiss Morteratsch glacier in 2010. Clean sampling is achieved with a hollow ice screw (as it is used in mountaineering) at the tip of the probe. Maneuverability is achieved with a differentially heated melting head. Funded by the German Space Agency (DLR), a consortium led by FH Aachen currently develops a much more advanced IceMole probe, which includes a sophisticated system for obstacle avoidance, target detection, and navigation in the ice. We intend to use this probe for taking clean samples of subglacial brine at the Blood Falls (McMurdo Dry Valleys, East Antarctica) for chemical and microbiological analysis. In our conference contribution, we 1) describe the IceMole design, 2) report the results of the field tests of the first prototype on the Morteratsch glacier, 3) discuss the probe's potential for the clean in-situ analysis and sampling of subsurface ice and subglacial liquids, and 4) outline the way ahead in the development of this technology.}, subject = {Eisschicht}, language = {en} } @inproceedings{DachwaldXuFeldmannetal.2011, author = {Dachwald, Bernd and Xu, Changsheng and Feldmann, Marco and Plescher, Engelbert and Digel, Ilya and Artmann, Gerhard}, title = {Development and testing of a subsurface probe for detection of life in deep ice : [abstract]}, year = {2011}, abstract = {We present the novel concept of a combined drilling and melting probe for subsurface ice research. This probe, named "IceMole", is currently developed, built, and tested at the FH Aachen University of Applied Sciences' Astronautical Laboratory. Here, we describe its first prototype design and report the results of its field tests on the Swiss Morteratsch glacier. Although the IceMole design is currently adapted to terrestrial glaciers and ice shields, it may later be modified for the subsurface in-situ investigation of extraterrestrial ice, e.g., on Mars, Europa, and Enceladus. If life exists on those bodies, it may be present in the ice (as life can also be found in the deep ice of Earth).}, subject = {Eisschicht}, language = {en} } @inproceedings{DalguerRenaultChurilovetal.2016, author = {Dalguer, Luis A. and Renault, Philippe and Churilov, Sergey and Butenweg, Christoph}, title = {Evaluation of fragility curves for a three-storey-reinforced-concrete mock-up of SMART 2013 project}, series = {Transactions, SMiRT-23 : 23rd Conference on Structural Mechanics in Reactor Technology : Manchester, United Kingdom - August 10-14, 2015}, booktitle = {Transactions, SMiRT-23 : 23rd Conference on Structural Mechanics in Reactor Technology : Manchester, United Kingdom - August 10-14, 2015}, organization = {Conference on Structural Mechanics in Reactor Technology <23, 2015, Manchester>}, pages = {1 -- 9}, year = {2016}, language = {en} } @inproceedings{DarvenizaFlisowskiKernetal.2002, author = {Darveniza, M. and Flisowski, Z. and Kern, Alexander and Landers, E.-U. and LoPiparo, G. and Mazzetti, C. and Rousseau, A. and Sherlock, J.}, title = {Application problems of the probabilistic approach to the assessment of risk for structures and services}, year = {2002}, abstract = {The paper deals with the development of the probabilistic approach to the assessment of risk due to lightning. Sources of damage, types of damage and types of loss are defined and, accordingly, the procedure for risk analysis and the way of assessment of different risk components is proposed. The way to evaluate the influence of different protection measures (lightning protection system; shielding of structure, cables and equipment; routing of internal wiring; surge protective device) in reducing such probabilities is considered. The paper has been prepared within the framework of the activity of IEC TC81-WG9/CLC TC81-WG4 directed to prepare the draft IEC 62305-2 Risk Management, in cooperation with the Secretary of IEC/CLC TC81.}, language = {en} } @inproceedings{DielmannCudina2003, author = {Dielmann, Klaus-Peter and Cudina, Boris}, title = {Emissionsrechtehandel in Europa - ein neues Instrument f{\"u}r den Umweltschutz}, year = {2003}, abstract = {Funktionsprinzip Emissionsrechtehandel, Betroffene Anlagen und Branchen, Erstverteilung der Emissionsrechte, Bereits erbrachte Emissionsreduktionen (early actions), Ausstieg von betroffenen Unternehmen (opt-out), Teilnahme von nicht betroffenen Unternehmen, Einsatz von Biobrennstoffen, Erfassung und Dokumentation der Emissionen}, subject = {Umweltzertifikathandel}, language = {de} } @inproceedings{DielmannPeters2002, author = {Dielmann, Klaus-Peter and Peters, Bernhard}, title = {Micro Turbine Using Different Gases and Liquid Fuels}, year = {2002}, abstract = {Micro turbine using different gases and liquid fuels}, subject = {Gasturbine}, language = {en} } @inproceedings{DielmannSchieke2000, author = {Dielmann, Klaus-Peter and Schieke, Wolf}, title = {Mikrogasturbinen - Aufbau und Anwendungen}, year = {2000}, abstract = {Mikrogasturbinen: Funktion, Aufbau, Hersteller, Bauformen, Rekuperatorparameter, Besonderheit der Konstruktion, Regelung, Regelbarkeit, Vergleich mit anderen Systemen, Wirkungs- und Nutzungsgrade, Schadstoffemissionen, Nutzung in Kraft-W{\"a}rme-Kopplung, Kraft-W{\"a}rme-K{\"a}lte-Kopplung}, subject = {Gasturbine}, language = {de} } @inproceedings{DielmannVelden2003, author = {Dielmann, Klaus-Peter and Velden, Alwin van der}, title = {Virtuelle Kraftwerke - Stand der Technik}, year = {2003}, abstract = {Ausgangslage, Funktionsprinzip des virtuellen Kraftwerkes, Energiemanagementsysteme (EMS), Einsatzgebiete, Anlagesysteme eines VKW's, Einsatzbereich der verschiedenen dezentralen Energieanlagen, Vorteile des virtuellen Kraftwerkes, Auswirkungen auf das elektrische Netz, Wirtschaftliche Aspekte, Beispielprojekte}, language = {de} } @inproceedings{DigelDachwaldArtmannetal.2009, author = {Digel, Ilya and Dachwald, Bernd and Artmann, Gerhard and Linder, Peter and Funke, O.}, title = {A concept of a probe for particle analysis and life detection in icy environments}, year = {2009}, abstract = {A melting probe equipped with autofluorescence-based detection system combined with a light scattering unit, and, optionally, with a microarray chip would be ideally suited to probe icy environments like Europa's ice layer as well as the polar ice layers of Earth and Mars for recent and extinct live.}, subject = {Sonde}, language = {en} } @inproceedings{DigelDemirciTrzewiketal.2004, author = {Digel, Ilya and Demirci, Taylan and Trzewik, J{\"u}rgen and Linder, Peter and Temiz Artmann, Ayseg{\"u}l}, title = {Fibroblast response to mechanical stress: role of the adhesion substrate : [abstract]}, year = {2004}, abstract = {Mechanical stimulation of the cells resulted in evident changes in the cell morphology, protein composition and gene expression. Microscopically, additional formation of stress fibers accompanied by cell re-arrangements in a monolayer was observed. Also, significant activation of p53 gene was revealed as compared to control. Interestingly, the use of CellTech membrane coating induced cell death after mechanical stress had been applied. Such an effect was not detected when fibronectin had been used as an adhesion substrate.}, subject = {Fibroblast}, language = {en} } @inproceedings{DigelLeimenaDachwaldetal.2010, author = {Digel, Ilya and Leimena, W. and Dachwald, Bernd and Linder, Peter and Porst, Dariusz and Kayser, Peter and Funke, O. and Temiz Artmann, Ayseg{\"u}l and Artmann, Gerhard}, title = {In-situ biological decontamination of an ice melting probe : [abstract]}, year = {2010}, abstract = {The objective of our study was to investigate the efficacy of different in-situ decontamination protocols in the conditions of thermo-mechanical ice-melting.}, subject = {Sonde}, language = {en} } @inproceedings{DigelTemizArtmannArtmannetal.2003, author = {Digel, Ilya and Temiz Artmann, Ayseg{\"u}l and Artmann, Gerhard and Nojima, H.}, title = {Plasma cluster ions (PCI) influence on microbial cells viability : [abstract]}, year = {2003}, abstract = {Recently, SHARP corporation has developed the world's first "Plasma Cluster Ions (PCI)" air purification technology, which uses plasma discharge to generate cluster ions. The new plasma cluster device releases into the air positive and negative ions, which are harmless to humans and are able to decompose and deactivate airborne substances by chemical reactions. A lot of phenomenological tests of the PCI air purification technology on microbial cells have been conducted. And, in most cases, it has been shown that PCI demonstrate strongly pronounced killing effect. Although, the particular mechanisms of PCI action are still not evident. We studied variations in resistance to PCI among gram-positive airborne microorganisms, as well as some dose-dependent, spatial, cultural and biochemical properties of PCI action in respect of Staphylococcus spp, Enterococcus spp, Micrococcus spp.}, subject = {Clusterion}, language = {en} } @inproceedings{DigelTemizArtmannNojimaetal.2003, author = {Digel, Ilya and Temiz Artmann, Ayseg{\"u}l and Nojima, H. and Artmann, Gerhard}, title = {Effects of plasma generated ions on bacteria : [poster]}, year = {2003}, abstract = {Summary and Conclusions PCIs were clearly effective in terms of their antibacterial effects with the strains tested. This efficacy increased with the time the bacteries were exposed to PCIs. The bactericidal action has proved to be irreversible. PCIs were significantly less effective in shadowed areas. PCI exposure caused multiple protein damages as observed in SDS PAGE studies. There was no single but multiple molecular mechanism causing the bacterial death.}, subject = {Clusterion}, language = {en} } @inproceedings{DigelTemizArtmannNojimaetal.2003, author = {Digel, Ilya and Temiz Artmann, Ayseg{\"u}l and Nojima, H. and Artmann, Gerhard}, title = {Some peculiarities of application of cluster ions generated by plasma in respect of indoor air purification :[abstract]}, year = {2003}, abstract = {Recently, the SHARP Corporation, Japan, has developed the world's first "Plasma Cluster Ions (PCI)" air purification technology using plasma discharge to generate cluster ions. The new plasma cluster device releases positive and negative ions into the air, which are able to decompose and deactivate harmful airborne substances by chemical reactions. Because cluster ions consist of positive and negative ions that normally exist in the natural world, they are completely harmless and safe to humans. The amount of ozone generated by cluster ions is less than 0.01 ppm, which is significantly less than the 0.05-ppm standard for industrial operations and consumer electronics. This amount, thus, has no harming effects whatsoever on the human body. But particular properties and chemical processes in PCI treatment are still under study. It has been shown that PCI in most cases show strongly pronounced irreversible killing effects in respect of airborne microflora due to free-radical induced reactions and can be considered as a potent technology to disinfect both home, medical and industrial appliances.}, subject = {Clusterion}, language = {en} } @inproceedings{DigelTemizArtmannNojimaetal.2003, author = {Digel, Ilya and Temiz Artmann, Ayseg{\"u}l and Nojima, H. and Artmann, Gerhard}, title = {Plasma-generated cluster ions' effects on indoor microflora : [abstract]}, year = {2003}, abstract = {Recently, SHARP corporation has developed the world's first "Plasma Cluster Ions® (PCI)" air purification technology, which uses plasma discharge to generate cluster ions. The new Plasma Cluster Device releases positive and negative ions into the air, which are harmless to humans and are able to decompose and deactivate airborne substances by chemical reactions. In the past, phenomenological tests on the efficacy of the PCI air purification technology on microbial cells have been conducted. In most cases, it has been shown that PCI demonstrated strongly pronounced killing effects on microorganisms. However, the particular mechanisms of PCI action still have to be uncovered.}, subject = {Clusterion}, language = {en} } @inproceedings{DilgerMundDiltheyetal.2003, author = {Dilger, Klaus and Mund, Frank and Dilthey, Ulrich and Schleser, Markus and Raupach, Michael and Walk-Lauffer, Bernd}, title = {Einsatz einer polymeren Phase zur Verbundverbesserung}, series = {Textile reinforced structures : proceedings of the 2nd Colloquium on Textile Reinforced Structures (CTRS2), Dresden, Germany, 29.9. - 1.10.2003}, booktitle = {Textile reinforced structures : proceedings of the 2nd Colloquium on Textile Reinforced Structures (CTRS2), Dresden, Germany, 29.9. - 1.10.2003}, editor = {Curbach, Manfred}, publisher = {Techn. Univ.}, address = {Dresden}, organization = {Colloquium on Textile Reinforced Structures <2, 2003, Dresden>}, isbn = {3-86005-386-8}, pages = {133 -- 144}, year = {2003}, language = {de} } @inproceedings{DiltheySchleserPuterman2007, author = {Dilthey, Ulrich and Schleser, Markus and Puterman, Moshe}, title = {Investigation and improvement of concrete reinforced with epoxy impregnated fabrics}, series = {Proceedings / 12th International Congress Polymers in Concrete, ICPIC 07, chuncheon, Korea, Sept. 26. - 28., 2007}, booktitle = {Proceedings / 12th International Congress Polymers in Concrete, ICPIC 07, chuncheon, Korea, Sept. 26. - 28., 2007}, publisher = {Kangwoon National Univ.}, address = {Chancheon}, isbn = {978-89-9600450-9}, pages = {725 -- 733}, year = {2007}, language = {en} } @inproceedings{DuongJungFrotscheretal.2016, author = {Duong, Minh Tuan and Jung, Alexander and Frotscher, Ralf and Staat, Manfred}, title = {A 3D electromechanical FEM-based model for cardiac tissue}, series = {ECCOMAS Congress 2016, VII European Congress on Computational Methods in Applied Sciences and Engineering. Crete Island, Greece, 5-10 June 2016}, booktitle = {ECCOMAS Congress 2016, VII European Congress on Computational Methods in Applied Sciences and Engineering. Crete Island, Greece, 5-10 June 2016}, editor = {Papadrakakis, M.}, pages = {13 S.}, year = {2016}, language = {en} } @inproceedings{DuongStaat2014, author = {Duong, Minh Tuan and Staat, Manfred}, title = {A face-based smoothed finite element method for hyperelastic models and tissue growth}, series = {11th World Congress on Computational Mechanics (WCCM XI) ; 5th European Conference on Computational Mechanics (ECCM V) ; 6th European Conference on Computational Fluid Dynamics (ECFD VI) ; July 20-25, 2014, Barcelona}, booktitle = {11th World Congress on Computational Mechanics (WCCM XI) ; 5th European Conference on Computational Mechanics (ECCM V) ; 6th European Conference on Computational Fluid Dynamics (ECFD VI) ; July 20-25, 2014, Barcelona}, editor = {Onate, E.}, organization = {World Congress on Computational Mechanics <11, 2014, Barcelona>}, pages = {1 -- 12}, year = {2014}, language = {en} } @inproceedings{ElBashirDigel2009, author = {ElBashir, Rasha and Digel, Ilya}, title = {Effect of nitric oxide gas on hydrogels : [abstract]}, year = {2009}, abstract = {The results support our theory that the NO gas has an influence in increasing the translational diffusion of hydrogels and it accelerates the melting process of the gels.}, subject = {Stickstoffmonoxid}, language = {en} } @inproceedings{EngelsGabler2012, author = {Engels, Elmar and Gabler, Thomas}, title = {Universelle Programmierschnittstelle f{\"u}r Motion-Logic Systeme : Struktur, Funktionen und Anwendung in der Forschung und Lehre}, year = {2012}, abstract = {Mit freundlicher Genehmigung der Autoren und des Oldenbourg Industrieverlags https://www.oldenbourg-industrieverlag.de/de/9783835633223-33223 erschienen als Beitrag im Tagungsband zur AALE-Tagung 2012. 9. Fachkonferenz 4.-5. Mai 2012, Aachen, Fachhochschule. ISBN 9783835633223 S 2-1 S. 37-46 Original-Abstract der Autoren: "Dieser Artikel beschreibt eine universelle Programmierschnittstelle zur Entwicklung von Motion-Logic Applikationen f{\"u}r industrielle Motion-Controller. Sie erm{\"o}glicht die Entwicklung von Software mit modernen Hochsprachen, wie C/C++. Visual Basic, C\#, Java, Objective-Cund visuellen Programmiersprachen, wie LabVIEW in Koexistenz mit klassischen Programmiersprachen f{\"u}r speicherprogrammierbare Steuerungen nach IEC 61131-3. Daraus ergeben sich neue M{\"o}glichkeiten industrielle Antriebs- und Steuerungssysteme mit ihrem IT-Umfeld zu verbinden."}, subject = {Speicherprogrammierte Steuerung}, language = {de} } @inproceedings{EngelsLuszczynski2012, author = {Engels, Elmar and Luszczynski, Kai}, title = {Vergleichende Untersuchung zur Topologie von zelloptimalen, elektromobilit{\"a}ts-optimierten Ladungsausgleichsvorrichtungen}, year = {2012}, abstract = {Mit freundlicher Genehmigung der Autoren und des Oldenbourg Industrieverlags https://www.oldenbourg-industrieverlag.de/de/9783835633223-33223 erschienen als Beitrag im Tagungsband zur AALE-Tagung 2012. 9. Fachkonferenz 4.-5. Mai 2012, Aachen, Fachhochschule. ISBN 9783835633223 S 6-2. S. 165-174 Zusammenfassung der Autoren: "Abschließend kann festgehalten werden, dass die gesamten durchgef{\"u}hrten {\"U}berlegungen von den Messergebnissen der Inbetriebnahme positiv best{\"a}tigt werden. Es wird durch diese Topologie eine maximale Systemverf{\"u}gbarkeit garantiert und die Zellen werden optimal betrieben. Ein Blick in die Zukunft f{\"u}r dieses Projekt zeigt viele Erweiterungs- und Optimierungsaufgaben. So muss der DC/DC-Wandler f{\"u}r einen bidirektionalen Betrieb erweitert werden, um einen Rekuperationsbetrieb zu gew{\"a}hrleisten bzw. die Zellen laden zu k{\"o}nnen. Dadurch k{\"o}nnen gleichzeitig die Gleichrichterdioden im Sekund{\"a}rleistungsteil durch IGBTs oder MOSFETs ersetzt werden. Die voll funktionsf{\"a}hige Version des DC/DC-Wandlers k{\"o}nnte h{\"o}chstwahrscheinlich direkt auf die Anschlusspole der Zelle montiert werden, wodurch das Gewicht gesenkt wird. Durch die verringerte Verlustleistung in den Zuleitungen k{\"o}nnte der Wirkungsgrad noch einmal gesteigert werden.}, subject = {Gleichspannungswandler}, language = {de} } @inproceedings{Engels2007, author = {Engels, Ralf}, title = {MIKE URBAN FLOOD: Modellkopplung von Kanalnetzmodell und 2D Oberfl{\"a}chenmodell}, year = {2007}, abstract = {Dipl.-Ing. Ralf Engels - DHI Wasser und Umwelt GmbH, Syke. 24 S. (S. 70-93) Beitrag zum 1. Aachener Softwaretag in der Wasserwirtschaft <1,2007, Aachen> Einleitung [des Autors] Die hydrodynamische Kanalnetzmodellierung ist ein Standardwerkzeug f{\"u}r die Bemessung von Kanalnetzen. Neben der Berechnung der hydrologischen und hydraulischen Gegebenheiten in einem st{\"a}dtischen Einzugsgebiet geh{\"o}ren auch weiterf{\"u}hrende Technologien mittlerweile zum Standard. So k{\"o}nnen alle steuerbaren Elemente eines Kanalnetzes dynamisch so optimiert werden, dass die Leistungsf{\"a}higkeit des Kanalnetzes zus{\"a}tzlich gesteigert werden kann. Automatische Werkzeuge zur dynamischen hydraulischen Schmutzfrachtberechnung erm{\"o}glichen die Erweiterung der Steuerung - insbesondere von Entlastungsanlagen - im Hinblick auf die entlasteten Schmutzfrachten und geben dar{\"u}ber hinaus detaillierte Informationen f{\"u}r den Betrieb der Kl{\"a}ranlage. Weiterf{\"u}hrende biologische Prozessmodellierungen erg{\"a}nzen dieses Themenfeld. GIS Werkzeuge k{\"o}nnen bei der r{\"a}umlich differenzierten Modellierung von Kanalnetzen wertvolle Dienste leisten. Die detaillierte Betrachtung einzelner Haltungsfl{\"a}chen in ihrem r{\"a}umlichen Zusammenhang ist damit ebenso m{\"o}glich wie eine komplette Verwaltung aller f{\"u}r die Kanalnetzmodellierung notwendigen Daten in einem {\"u}bersichtlichen grafischen Men{\"u}. Die Grenzen der Kanalnetzmodellierung lagen in fr{\"u}heren Zeiten an dessen Rand. Detaillierte Informationen {\"u}ber die Wege des Wassers auf der Gel{\"a}ndeoberfl{\"a}che, an der Schnittstelle zu Vorflutern und in der Interaktion mit Grundwasser waren bisher nicht modelltechnisch bewertbar. Eine dynamische Kopplung verschiedener Modelle zur Darstellung aller relevanten hydraulischen Prozesse erm{\"o}glicht eine integrative Betrachtung aller m{\"o}glichen Wege, die das Wasser in der Stadt nehmen kann (Mark \& Djordjevic, 2006). Dieser Beitrag pr{\"a}sentiert den Stand der Technik f{\"u}r die integrierte Modellierung st{\"a}dtischer {\"U}berschwemmungen mit Hilfe der Modellkopplung von Oberfl{\"a}chenmodellen und Kanalnetzmodellen.}, subject = {Bemessung}, language = {de} } @inproceedings{Fabo2004, author = {Fabo, Sabine}, title = {Audio-visual hybrids : between immersion and detachment}, year = {2004}, abstract = {Close interrelations between sound and image are not a mere phenomenon of today's multimedia technology. The idea of the synthesis of different media lies at the core of the concept of the Gesamtkunstwerk in the second half of the 19th century and it can also be traced back to the synaesthesia debate at the beginning of the 20th century [...].}, subject = {Elektronische Kunst}, language = {en} } @inproceedings{Ferrein2015, author = {Ferrein, Alexander}, title = {Robots: challenges, chances and risks for solving 21st century problems}, series = {President's Invitation Lecture / South African Institute of Electrical Engineers : May 21 \& 22, 2015, University of Johannesburg}, booktitle = {President's Invitation Lecture / South African Institute of Electrical Engineers : May 21 \& 22, 2015, University of Johannesburg}, organization = {South African Institute of Electrical Engineers}, pages = {1 -- 45}, year = {2015}, language = {en} } @inproceedings{FerreinKallweitScholletal.2015, author = {Ferrein, Alexander and Kallweit, Stephan and Scholl, Ingrid and Reichert, Walter}, title = {Learning to Program Mobile Robots in the ROS Summer School Series}, series = {Proceedings 6th International Conference on Robotics in Education (RiE 15)}, booktitle = {Proceedings 6th International Conference on Robotics in Education (RiE 15)}, pages = {6 S.}, year = {2015}, abstract = {The main objective of our ROS Summer School series is to introduce MA level students to program mobile robots with the Robot Operating System (ROS). ROS is a robot middleware that is used my many research institutions world-wide. Therefore, many state-of-the-art algorithms of mobile robotics are available in ROS and can be deployed very easily. As a basic robot platform we deploy a 1/10 RC cart that is wquipped with an Arduino micro-controller to control the servo motors, and an embedded PC that runs ROS. In two weeks, participants get to learn the basics of mobile robotics hands-on. We describe our teaching concepts and our curriculum and report on the learning success of our students.}, language = {en} } @inproceedings{FeuerriegelPookWerschetal.2012, author = {Feuerriegel, Uwe and Pook, Michael and Wersch, Gregor and Wittenhorst, Simon and Becker, J{\"u}rgen and Ecker, Markus and Hoffmann, Ulrich and Kunz, Ulrich}, title = {Simulation von W{\"a}rme{\"u}bertragungsprozessen}, year = {2012}, abstract = {Mit freundlicher Genehmigung der Autoren und des Oldenbourg Industrieverlags https://www.oldenbourg-industrieverlag.de/de/9783835633223-33223 erschienen als Beitrag im Tagungsband zur AALE-Tagung 2012. 9. Fachkonferenz 4.-5. Mai 2012, Aachen, Fachhochschule. ISBN 9783835633223 S 5-1 S. 127-135 Es werden Ergebnisse unterschiedlicher Projekte aus dem Bereich der Simulation von W{\"a}rme{\"u}bertragungsprozessen mit Excel-VBA vorgestellt. - Thermische Behandlung hochviskoser Fruchtzubereitungen, verschiedene Projekte und Kooperationen mit der Zentis GmbH \& Co. KG, Aachen (J. Becker, U. Feuerriegel, G. Wersch). - Untersuchung des dynamischen Verhaltens von dampfbeheizten Ethylen-Verdampfern. Projekt mit der TGE Gas Engineering GmbH, Bonn (M. Ecker, U. Feuerriegel, U. Hoffmann, S. Wittenhorst). - Dynamische Simulation des axialen Temperaturverlaufs von elektrisch beheizten Rohrreaktoren. Kooperation mit dem Institut f{\"u}r Chemische Verfahrenstechnik, TU Clausthal (U. Feuerriegel, U. Kunz, M. Pook, S. Wittenhorst).}, subject = {W{\"a}rme{\"u}bertragung}, language = {de} } @inproceedings{FredebeulKrein2008, author = {Fredebeul-Krein, Markus}, title = {Die Liberalisierung des deutschen Telekommunikationsmarktes: Vorbild f{\"u}r andere Sektoren? : Vortrag am Institut f{\"u}r Wirtschaftspolitik der Universit{\"a}t zu K{\"o}ln, 3. November 2008, K{\"o}ln}, year = {2008}, abstract = {Regulierung des deutschen Telekommunikationsmarktes Wettbewerb auf dem deutschen Telekommunikationsmarkt}, subject = {Telekommunikationsmarkt}, language = {de} } @inproceedings{FredebeulKrein2008, author = {Fredebeul-Krein, Markus}, title = {Time for revision: The regulation of Germany's next generation networks in the light of new economic and technological challenges on telecom markets : Presentation for the 18th Biennial conference of the International Telecommunications Society, June 24-27, 2008 Montreal, Canada}, year = {2008}, abstract = {On 1st January 1998, the German telecom market was fully liberalised. Since then genuine competition between market participants has developed, based on a comprehensive legal and regulatory framework that provides for safeguards against unfair competition and market power by Deutsche Telekom. Today, about 10 years after the liberalisation of the telecommunications sector a revision of this regulatory approach has become necessary because at least on three dimensions the situation is quite different from the one 10 years ago: First, with numerous established alternative operators in the market monopolies have been successfully challenged and competition introduced. Second, not only is Cable TV becoming in large parts of Germany a viable alternative for the provision of broadband services but also mobile services are becoming increasingly a substitute for fixed services. Last but not least there are important technological changes under way, requiring huge investments in infrastructure upgrades for next generation networks. In the light of these new developments the question is to which extent the current regulatory approach of severe ex-ante regulatory intervention is still appropriate. Is any part of the network of the former incumbent still a bottleneck? A more light handed regulatory approach might be the right response to this new situation. The paper is organised as follows: The first section will briefly examine the economic rationale for regulating network access. Based on the assumption that regulation is always necessary when bottlenecks exist regulatory principles for an efficient network access regime will be derived. The second section compares the situation of the German market in early 1998 with the one of today. Thereby three dimensions will be considered: the degree of competition, the potential for substitution and technological developments. The third section will define some requirements for the future regulation of telecom markets. Proposals will be elaborated how to ensure competitive telecom markets in the light of new economic and technological challenges.}, subject = {Telekommunikationsmarkt}, language = {en} } @inproceedings{FredebeulKrein2009, author = {Fredebeul-Krein, Markus}, title = {Encouraging competition and investment into next generation access networks: The case of long term risk sharing contracts}, year = {2009}, abstract = {Working paper distributed at 2nd Annual Next Generation Telecommunications Conference 2009, 13th - 14th October 2009, Brussels 14 pages Abstract Governments all over Europe are in the process of adopting new broadband strategies. The objective is to create modern telecommunications networks based on powerful broadband infrastructures". In doing so, they aim for innovative and investment-friendly concepts. For instance, in a recently published consultation paper on the subject the German regulator BNetzA declared that it will take "greater account of … reducing risks, securing the investment and innovation power, providing planning certainty and transparency - in order to support and advance broadband rollout in Germany". It further states that when regulating wholesale rates it has to be ensured that "… adequate incentives for network rollout are provided on the one hand, while sustainable and fair competition is ensured on the other". Also an EC draft recommendation on regulated network access is about to set new standards for the regulation of next generation access networks. According to the recommendation the prices of new assets shall be based on costs plus a projectspecific risk premium to be included in the costs of capital for the investment risk incurred by the operator. This approach has been criticised from various sides. In particular it has been questioned whether such an approach is adequate to meet the objectives of encouraging both competition and investment into next generation access networks. Against this background, the concept of "long term risk sharing contracts" has been proposed recently as an approach which does not only incorporate the various additional risks involved in the deployment of NGA infrastructure, but has several other advantages. This paper will demonstrate that the concept allows for competition to evolve at both the retail and wholesale level on fair, objective, non-discriminatory and transparent terms and conditions. Moreover, it ensures the highest possible investment incentive in line with socially desirable outcome. The paper is organised as follows: The next section will briefly outline the importance of encouraging competition and investment in an NGA-environment. The third section will specify the design of long term risk sharing contracts in view of achieving these objectives. The fourth section will examine potential problems associated with the concept. In doing so a way of how to deal with them will be elaborated. The last section will look at arguments against long term risk sharing contracts. It will be shown that these arguments are not strong enough to build a case against introducing such contracts.}, subject = {Electronic Commerce}, language = {en} } @inproceedings{FredebeulKrein2008, author = {Fredebeul-Krein, Markus}, title = {Die globale Finanzkrise: Ursachen und Bew{\"a}ltigung : Vortrag an der Georg-Simon-Ohm-Schule K{\"o}ln, 2. Dezember 2008, K{\"o}ln}, organization = {FH Aachen, University of Applied Sciences}, year = {2008}, abstract = {- Wie kam es zu der globalen Finanzkrise? - Wodurch zeichnet sich die Finanzkrise aus? - Wer hat die Finanzkrise verschuldet? - Welche Rolle spielten Spekulanten? - Inwiefern ist die Finanzkrise selbstverschuldet? - Ist die Globalisierung Schuld an den Finanzkrisen in zahlreichen Regionen dieser Welt? - Wie wirkt sich die Finanzkrise auf die Realwirtschaft aus? - Welche Wege bieten sich, aus der Krise herauszukommen?}, subject = {Finanzkrise}, language = {de} } @inproceedings{FredebeulKrein2006, author = {Fredebeul-Krein, Markus}, title = {Developing competitive broadband markets: Lessons learnt from German and European regulatory approaches on broad-band access}, year = {2006}, abstract = {A key feature of future broadband markets will be diversity of access technologies, meaning that numerous technologies will be exploited for broadband communication. Various factors will affect the success of these future broadband markets, the regulatory policy being one amongst others. So far, a coherent regulatory approach does not exist as to broadband markets. First results of policies so far suggest that less sector-specific regulation is likely to occur. Instead, regulators must ensure that access to networks and services of potentially dominant providers in a relevant broadband market will satisfy requirements for openness and non-discrimination. In this environment the future challenge of regulationg broadband markets will be to set the right incentives for investment into new infrastructures. This paper examines whether there is a need for the regulation of future broadband access markets an if yes, what is the appropriate regulatory tool to do so. Thereby the focus is on the analysis of European broadband markets and the regulatory approaches applied. The first section provides a description of the characteristics of future broadband markets. The second section discusses possible bottlenecks on broadband markets an their regulatory implications. The third section will examine regulatory issues concerning access to broadband networks in more detail. This will be done by comparing the regulatory approaches of European countries and the results in terms of bradband penetration. The final section will give key recommendations for a regulatory strategy on brandband access markets.}, subject = {Telekommunikationsmarkt}, language = {en} } @inproceedings{FredebeulKrein2007, author = {Fredebeul-Krein, Markus}, title = {10 years of liberalised telecom markets in Germany: Assessing the degree of competition on the markets for voice telephony}, year = {2007}, abstract = {Market data for the German telecom market shows that Deutsche Telekom as the former incumbent is constantly loosing shares on all arkets for voice telephony: the market for local calls, the market for long-distance calls and the market for international calls. At the same time prices decline steadily with the latest trend being that operators offer voice services free of charge, the costs of which are covered by a monthly subscription charge. Against this background the paper examines the state of policy and regulatory reform in the telecommunications sector in Germany almost 10 years after the liberalisation of the fixed telecommunications market. Thereby the focus is on the analysis of the competitive conditions that have been established on the German market for voice telephony services. If these retail markets are competitive, there might be a need to remove remaining regulatory provisions. In the new environment of converging markets the future challenge of regulating fixed telecom markets might be to ensure that access to the network and/or services of a potentially dominant provider in a relevant market will satisfy requirements for openness and non-discrimination.}, subject = {Telekommunikationsmarkt}, language = {en} } @inproceedings{FredebeulKrein2007, author = {Fredebeul-Krein, Markus}, title = {10 Jahre Wettbewerb auf dem deutschen Telekommunikationsmarkt: Zeit f{\"u}r einen Paradigmenwechsel in der Regulierung?}, year = {2007}, abstract = {1. Ein Referenzrahmen f{\"u}r die Wettbewerbsanalyse 2. Regulierung des deutschen Marktes f{\"u}r Sprachtelefondienste 3. Wettbewerb auf dem deutschen Markt f{\"u}r Sprachtelefondienste 4. Die Telekommunikationsregulierung vor einem Paradigmenwechsel}, subject = {Telekommunikationsmarkt}, language = {de} } @inproceedings{FredebeulKrein2016, author = {Fredebeul-Krein, Markus}, title = {Towards trade facilitation via regulatory convergence: An analysis of the TTIP chapter on Electronic Communications}, series = {Regional ITS Conference of the International Telecommunications Society. Cambridge, United Kingdom, 7-9 September 2016}, booktitle = {Regional ITS Conference of the International Telecommunications Society. Cambridge, United Kingdom, 7-9 September 2016}, pages = {29 Seiten}, year = {2016}, abstract = {To give the exchange of goods and services between the European Union (EU) and the United States (U.S.) new momentum the two parties are currently negotiating the transatlantic free trade agreement Transatlantic Trade and Investment Partnership (TTIP). The aim is to create the largest free trade area in the world. The agreement, once entered into force, will oblige EU countries and the U.S. to further liberalize their markets. The negotiations on TTIP include a chapter on Electronic Communications/ Telecommunications. The challenge therein will be securing commitments for market access to Electronic Communications services. At the same time, these commitments must reflect the legitimate need for consumer protection issues. The need to reduce Electronic Communications-related non-tariff barriers to trade between the Parties is due to the fact that these markets are heavily regulated. Without transnational rules as to regulations national governments can abuse these regulations to deter the market entry by new (foreign) suppliers. Thus the free trade agreement TTIP affects in many respects regulatory provisions on and access to Electronic Communications markets. The objective of this paper is therefore to examine to what extend the regulatory principles for Electronic Communications markets envisaged under TTIP will result in trade facilitation and regulatory convergence between the EU and the U.S. As to this question the result of the analysis is that the chapter on Electronic Communications will be an important step towards facilitating trade in Electronic Communications services. At the same time some regulatory convergence will take place, but this convergence will not lead to a (full) harmonization of regulations. Rather the norm, also after TTIP negotiations will have been concluded successfully, will be mutual recognition of different regulatory regimes. Different regulations being the optimal policy response in different market settings will continue to exist. Moreover, it is very unlikely that such regulatory principles for the Electronic Communications sector are a vehicle for a race to the bottom in levels of consumer protection.}, language = {en} } @inproceedings{FredebeulKreinHaunert2008, author = {Fredebeul-Krein, Markus and Haunert, Martina}, title = {Assessing the effectiveness of price cap regimes for the regulation of fixed telephony markets: has it been successful in achieving competition? : preliminary draft / by Markus Fredebeul-Krein and Martina Haunert. 19th European Regional ITS Conference of the International Telecommunications Society, September 17-19, 2008 Rome, Italy}, year = {2008}, abstract = {1. Introduction 2. Tariff regulation, rebalancing and price caps 3. Price cap regimes in selected European countries 4. Has price cap regulation been successful? 5. Regulatory implications for other countries}, subject = {Telekommunikationsmarkt}, language = {en} } @inproceedings{FrotscherDuongStaat2015, author = {Frotscher, Ralf and Duong, Minh Tuan and Staat, Manfred}, title = {Simulating beating cardiomyocytes with electromechanical coupling}, series = {II. International Conference on Biomedical Technology : 28-30 October 2015 Hannover, Germany / T. Lenarz, P. Wriggers (Eds.)}, booktitle = {II. International Conference on Biomedical Technology : 28-30 October 2015 Hannover, Germany / T. Lenarz, P. Wriggers (Eds.)}, organization = {International Conference on Biomedical Technology <2, 2015, Hannover>}, pages = {1 -- 2}, year = {2015}, language = {en} } @inproceedings{FrotscherKochRaatschenetal.2014, author = {Frotscher, Ralf and Koch, Jan-Peter and Raatschen, Hans-J{\"u}rgen and Staat, Manfred}, title = {Evaluation of a computational model for drug action on cardiac tissue}, series = {11th World Congress on Computational Mechanics (WCCM XI) ; 5th European Conference on Computational Mechanics (ECCM V) ; 6th European Conference on Computational Fluid Dynamics (ECFD VI) ; July 20 - 25, 2014, Barcelona}, booktitle = {11th World Congress on Computational Mechanics (WCCM XI) ; 5th European Conference on Computational Mechanics (ECCM V) ; 6th European Conference on Computational Fluid Dynamics (ECFD VI) ; July 20 - 25, 2014, Barcelona}, editor = {Onate, E.}, organization = {World Congress on Computational Mechanics <11, 2014, Barcelona>}, pages = {1 -- 12}, year = {2014}, language = {en} } @inproceedings{FrotscherStaat2015, author = {Frotscher, Ralf and Staat, Manfred}, title = {Homogenization of a cardiac tissue construct}, series = {CMBE15 : 4th International Conference on Computational \& Mathematical Biomedical Engineering ; 29th June - 1st July 2015 ; {\´E}cole Normale Sup{\´e}rieure de Cachan ; Cachan (Paris), France}, booktitle = {CMBE15 : 4th International Conference on Computational \& Mathematical Biomedical Engineering ; 29th June - 1st July 2015 ; {\´E}cole Normale Sup{\´e}rieure de Cachan ; Cachan (Paris), France}, editor = {Nithiarasu, Perumal}, publisher = {CMBE}, address = {[s.l.]}, issn = {2227-9385}, pages = {645 -- 648}, year = {2015}, language = {en} } @inproceedings{Fuchs2007, author = {Fuchs, Lothar}, title = {Abflusssteuerung in der Stadtentw{\"a}sserung}, year = {2007}, abstract = {Dr.-Ing. Lothar Fuchs vom itwh Hannover mit 13 Seiten (S. 57-69) Beitrag zum 1. Aachener Softwaretag in der Wasserwirtschaft <1, 2007, Aachen> Zusammenfassung [des Autors] Die wesentlichen technischen Probleme der Kanalnetzbewirtschaftung sind gel{\"o}st. Der Markt bietet bew{\"a}hrte Messger{\"a}te, Steuerungseinrichtungen, Daten{\"u}bertragungs-, Regler- und Rechnersysteme, die sich f{\"u}r den Einsatz in der Stadtentw{\"a}sserung eignen. Mit den heute existierenden Simulationsmodellen k{\"o}nnen die Auswirkungen von Bewirtschaftungssystemen abgesch{\"a}tzt werden, bevor diese implementiert werden. Die f{\"u}r Bewirtschaftungssysteme notwendige Ausr{\"u}stung ist eine andere, als die traditionell in der Stadtentw{\"a}sserung {\"u}bliche. Sie erfordert in jedem Fall mehr und teureren Wartungsaufwand sowie anders ausgebildetes Personal. Bei einem Kostenvergleich mit konventionellen (d.h. ungesteuerten) Systemen muß die umfassende Information und Kontrolle des bewirtschafteten Systems ber{\"u}cksichtigt werden. Die permanente Information {\"u}ber den Betriebszustand sowie die in allen existierenden Bewirtschaftungssystemen erreichten Verminderungen von Regenentlastungen und (in geringerem Maße) hydraulischen {\"U}berlastungen lassen es geraten erscheinen, Kanalnetzbewirtschaftung nicht nur unter dem Gesichtspunkt der h{\"o}heren Betriebskosten, sondern auch denen der m{\"o}glich Einsparungen von Investitionen und der h{\"o}heren Effizienz zu beurteilen. Analog l{\"a}sst sich zeigen, dass bewirtschaftete Systeme kleiner ausgelegt werden k{\"o}nnen und dennoch die gleiche Effizienz besitzen wie gr{\"o}ßer dimensionierte, statisch wirkende Systeme.}, subject = {Wasserbau}, language = {de} } @inproceedings{FoersterStockMontanarietal.2006, author = {F{\"o}rster, Arnold and Stock, J{\"u}rgen and Montanari, Simone and Lepsa, Mihail Ion and L{\"u}th, Hans}, title = {Fabrication and characterisation of GaAs Gunn Diode Chips for applications at 77 GHz in automotive industry}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:a96-opus-1462}, year = {2006}, abstract = {GaAs-based Gunn diodes with graded AlGaAs hot electron injector heterostructures have been developed under the special needs in automotive applications. The fabrication of the Gunn diode chips was based on total substrate removal and processing of integrated Au heat sinks. Especially, the thermal and RF behavior of the diodes have been analyzed by DC, impedance and S-parameter measurements. The electrical investigations have revealed the functionality of the hot electron injector. An optimized layer structure could fulfill the requirements in adaptive cruise control (ACC) systems at 77 GHz with typical output power between 50 and 90 mW.}, subject = {Biosensor}, language = {en} } @inproceedings{Gebhardt2006, author = {Gebhardt, Andreas}, title = {Technology Diffusion through a Multi-Level Technology Transfer Infrastructure. Contribution to the 1st. All Africa Technology Diffusion Conference Boksburg, South Africa June 12th - 14th 2006}, year = {2006}, abstract = {Table of contents 1. Introduction 2. Multi-level Technology Transfer Infrastructure 2.1 Level 1: University Education - Encourage the Idea of becoming an Entrepreneur 2.2 Level 2: Post Graduate Education - Improve your skills and focus it on a product family. 2.3 Level 3: Birth of a Company - Focus your skills on a product and a market segment. 2.4 Level 4: Ready to stand alone - Set up your own business 2.5 Level 5: Grow to be Strong - Develop your business 2.6 Level 6: Competitive and independent - Stay innovative. 3. Samples 3.1 Sample 1: Laser Processing and Consulting Centre, LBBZ 3.2 Sample 2: Prototyping Centre, CP 4. Funding - Waste money or even lost Money? 5. Conclusion}, subject = {Technologietransfer}, language = {en} } @inproceedings{GebhardtSchmidt2005, author = {Gebhardt, Andreas and Schmidt, Frank-Michael}, title = {Farbige Prototypen als Werkzeug f{\"u}r den Konstrukteur}, year = {2005}, abstract = {Physische Prototypen, also Anschauungs- und Funktionsmodelle nach den generativen oder Rapid Prototyping (RP) Verfahren haben sich in diesem Zusammenhang vor allem als Hilfsmittel zur effektiven Kommunikation und zur Evaluierung von Produkteigenschaften einen festen Platz in der Produktentstehung erworben. Die positiven Effekte der etablierten RP Verfahren sind unumstritten. Einfachere, schnellere und wirtschaftlichere Maschinen (Prototyper, Fabrikator), vor allem auch f{\"u}r die B{\"u}roumgebung, geben neue Impulse im Sinne der Optimierung der heutigen Verfahren. Eine neue Dimension verspricht die Option „Farbe" der bisher fast ausschließlich monochromen Modelle. Ist Farbe nur „nice to have" oder welchen Effekt haben farbige Modelle als Werkzeug von Konstrukteuren und Produktenwicklern? Welche Perspektiven bietet „Farbe" dar{\"u}ber hinaus?}, subject = {Prototyping}, language = {de} } @inproceedings{GellertNordaButenweg2008, author = {Gellert, Christoph and Norda, Hannah and Butenweg, Christoph}, title = {Nonlinear behaviour of masonry under cyclic loading}, series = {7th European Conference on Structural Dynamics, EURODYN 2008 : 7-9 July 2008, Southampton}, booktitle = {7th European Conference on Structural Dynamics, EURODYN 2008 : 7-9 July 2008, Southampton}, organization = {European Conference on Structural Dynamics, EURODYN <7, 2008, Southampton>}, pages = {1 -- 12}, year = {2008}, language = {en} } @inproceedings{Gobbele2006, author = {Gobbel{\´e}, Dirk}, title = {Planung der Umbaumaßnahme Hauptbahnhof Aachen}, year = {2006}, abstract = {In: Alfha.net / Sektion Bauingenieurwesen: 1. [Erster] Erfahrungsaustausch : Absolventen des Fachbereichs Bauingenieurwesens berichten. 13. Oktober 2006. S. 13-15. Bericht {\"u}ber die infrastrukturellen Maßnahmen zum Umbau des Hauptbahnhofs Aachen.}, subject = {Bauplanung}, language = {de} } @inproceedings{GregorioFatigatiKallweit2015, author = {Gregorio, Fabrizio de and Fatigati, Giovanni and Kallweit, Stephan}, title = {Tiltrotor airframe flow field characterization by SPIV}, series = {11th International Symposium on Partivle Image Velocimetry - PIV15 , Santa Barbara, California, Sept 14-16, 2015}, booktitle = {11th International Symposium on Partivle Image Velocimetry - PIV15 , Santa Barbara, California, Sept 14-16, 2015}, pages = {15 S.}, year = {2015}, language = {en} } @inproceedings{GroebelKowollikCrummenerletal.2009, author = {Groebel, Simone and Kowollik, Silvia and Crummenerl, Silvia and Sch{\"o}ning, Michael Josef}, title = {2. Graduiertentagung : 5. November 2009 / [Hrsg.: S. Groebel ; S. Kowollik ; S. Crummenerl ; M. J. Sch{\"o}ning]}, organization = {FH Aachen, University of Applied Sciences / Graduiertentagung <2, 2009>}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:a96-opus-3131}, year = {2009}, abstract = {Tagungsband der Graduiertentagung der FH Aachen, in dem Doktorandinnen und Doktoranden und ihre Forschungsbereiche vorgestellt werden}, subject = {Aachen / Fachhochschule Aachen ; Graduierter ; Promotionsstudium}, language = {de} } @inproceedings{GoettscheKornAmato2015, author = {G{\"o}ttsche, Joachim and Korn, Michael and Amato, Alexandre}, title = {The Passivhaus concept for the Arabian Peninsula - An energetic-economical evaluation considering the thermal comfort}, series = {QScience Proceedings: Vol 2015}, booktitle = {QScience Proceedings: Vol 2015}, doi = {10.5339/qproc.2015.qgbc.38}, pages = {8 Seiten}, year = {2015}, abstract = {The Passivhaus building standard is a concept developed for the realization of energy-efficient and economical buildings with a simultaneous high utilization comfort under European climate conditions. Major elements of the Passivhaus concept are a high thermal insulation of the external walls, the use of heat and/or solar shading glazing as well as an airtight building envelope in combination with energy-efficient technical building installations and heating or cooling generators, such as an efficient energy-recovery in the building air-conditioning. The objective of this research project is the inquiry to determine the parameters or constraints under which the Passivhaus concept can be implemented under the arid climate conditions in the Arabian Peninsula to achieve an energy-efficient and economical building with high utilization comfort. In cooperation between the Qatar Green Building Council (QGBC), Barwa Real Estate (BRE) and Kahramaa the first Passivhaus was constructed in Qatar and on the Arabian Peninsula in 2013. The Solar-Institut J{\"u}lich of Aachen University of Applied Science supports the Qatar Green Building Council with a dynamic building and equipment simulation of the Passivhaus and the neighbouring reference building. This includes simulation studies with different component configurations for the building envelope and different control strategies for heating or cooling systems as well as the air conditioning of buildings to find an energetic-economical optimum. Part of these analyses is the evaluation of the energy efficiency of the used energy recovery system in the Passivhaus air-conditioning and identification of possible energy-saving effects by the use of a bypass function integrated in the heat exchanger. In this way it is expected that on an annual basis the complete electricity demand of the building can be covered by the roof-integrated PV generator.}, language = {en} } @inproceedings{GoettscheRoether2014, author = {G{\"o}ttsche, Joachim and R{\"o}ther, Sascha}, title = {Science College Overbach - Innovatives Bildungszentrum in J{\"u}lich-Barmen}, series = {18. Internationale Passivhaustagung, Aachen, April 2014}, booktitle = {18. Internationale Passivhaustagung, Aachen, April 2014}, pages = {6 Seiten}, year = {2014}, abstract = {Preprint der Autoren}, language = {de} } @inproceedings{HartungHillgaertnerSchmitzetal.2014, author = {Hartung, Frank and Hillg{\"a}rtner, Michael and Schmitz, G{\"u}nter and Schuba, Marko and Adolphs, Fabian and Hoffend, Jens and Theis, Jochen}, title = {IT-Sicherheit im Automobil}, series = {AmE 2014 : Automotive meets Electronics, Beitr{\"a}ge der 5. GMM-Fachtagung vom 18. bis 19. Februar 2014 in Dortmund. (GMM-Fachbericht ; 78)}, booktitle = {AmE 2014 : Automotive meets Electronics, Beitr{\"a}ge der 5. GMM-Fachtagung vom 18. bis 19. Februar 2014 in Dortmund. (GMM-Fachbericht ; 78)}, publisher = {VDE-Verl.}, address = {Berlin}, organization = {VDE/VDI-Gesellschaft Mikroelektronik, Mikrosystem- und Feinwerktechnik (GMM)}, isbn = {978-3-8007-3580-8}, pages = {CD-ROM}, year = {2014}, language = {de} } @inproceedings{Hecker2007, author = {Hecker, Dirk}, title = {Hochwasservorsorge f{\"u}r Abwasseranlagen (DWA-M103) und {\"o}ffentliche Einrichtungen}, year = {2007}, abstract = {Dipl.-Ing. Dirk Hecker von der Ingenieurgesellschaft Tuttahs \& Meyer in Aachen. Vortrag gehalten beim 1. Aachener Softwaretag in der Wasserwirtschaft <1, 2007, Aachen> 27 S. (S. 28-54) Zusammenfassung [des Autors]: Nach den spektakul{\"a}ren Hochwasserereignissen an Rhein, Elbe und Donau hat die Deutsche Vereinigung f{\"u}r Wasserwirtschaft, Abwasser und Abfall e. V. (DWA) einen Fachausschuss zur Erstellung eines Merkblattes M 103 „Hochwasserschutz f{\"u}r Abwasseranlagen" berufen. Das Merkblatt zeigt in den Kapiteln Konzeption, Planungsgrunds{\"a}tze und Hochwassermanagement eine strukturierte Vorgehensweise zur bestm{\"o}glichen Vorsorge zum Schutz der Abwasseranlagen im Hochwasserfall. Entsprechend den Forderungen des im Jahr 2005 verabschiedeten Gesetzes zur Verbesserung des vorbeugenden Hochwasserschutzes, floss in das Wasserhaushaltsgesetz unter anderem die allgemeine Verpflichtung jedes potentiell vom Hochwasser Betroffenen ein, geeignete Schutzmaßnahmen zur Schadensminimierung zu treffen. Hierbei werden speziell die Wasserversorgung und die Abwasserbeseitigung erw{\"a}hnt. Im DWA-M 103 wir detailliert dargestellt wie und mit welchem Aufwand die Abwasseranlagen zu {\"u}berpr{\"u}fen sind und wie hierzu ein Hochwasserschutzkonzept erstellt werden kann. Zus{\"a}tzlich werden Hinweise f{\"u}r die Planung von Abwasseranlagen in hochwassergef{\"a}hrdeten Bereichen gegeben, die den st{\"o}rungsfreien Betrieb im Hochwasserfall gew{\"a}hrleisten sollen. Schlussendlich werden das Hochwassermanagement und der Betrieb dargestellt und hier wichtige Anregungen gegeben im Ernstfall ausreichend vorbereitet zu sein. Das DWA-M 103 richtet sich in erster Linie an die Betreiber und Planer von Abwasseranlagen. Jedoch werden hier auch, gerade durch die Vielzahl von Checklisten, Kommunen Denkanst{\"o}ße und Anregungen f{\"u}r die Hochwasservorsorge/-schutz von {\"o}ffentlichen Geb{\"a}uden und Einrichtungen gegeben.}, subject = {Hochwasserschutz}, language = {de} } @inproceedings{HeerRedkowitzKraft2008, author = {Heer, Thomas and Redkowitz, Daniel and Kraft, Bodo}, title = {Tool Support for the Integration of Light-Weight Ontologies}, isbn = {978-3-642-00670-8}, year = {2008}, abstract = {Abstract of the authors: In many areas of computer science ontologies become more and more important. The use of ontologies for domain modeling often brings up the issue of ontology integration. The task of merging several ontologies, covering specific subdomains, into one united ontology has to be solved. Many approaches for ontology integration aim at automating the process of ontology alignment. However, a complete automation is not feasible, and user interaction is always required. Nevertheless, most ontology integration tools offer only very limited support for the interactive part of the integration process. In this paper, we present a novel approach for the interactive integration of ontologies. The result of the ontology integration is incrementally updated after each definition of a correspondence between ontology elements. The user is guided through the ontologies to be integrated. By restricting the possible user actions, the integrity of all defined correspondences is ensured by the tool we developed. We evaluated our tool by integrating different regulations concerning building design.}, subject = {Ontologie }, language = {de} } @inproceedings{Heisterkamp2009, author = {Heisterkamp, Reinhold}, title = {Vom Desktop-GIS zur mobilen 3D-L{\"o}sung}, year = {2009}, abstract = {Dipl.-Ing. Reinhold Heisterkamp - GDS Geo Daten Service GmbH, Borken (Westf.). 8 S. (S. 24-31). Beitrag zum 2. Aachener Softwaretag in der Wasserwirtschaft <2, 2009, Aachen>. Einleitung Web-GIS Leistungsmerkmale von aktuellen Web-GIS Mobile GIS-L{\"o}sungen Dreidimensionale GIS-L{\"o}sungen}, subject = {Geoinformationssystem}, language = {de} } @inproceedings{HeitzerStaat2000, author = {Heitzer, M. and Staat, Manfred}, title = {Direct FEM approach to design-by-analysis of pressurized components}, year = {2000}, abstract = {Abstracts of the ACHEMA 2000 - International Meeting on Chemical Engineering, Environmental Protection and Biotechnology, May 22 - 27, 2000. Frankfurt am Main. Achema 2000 : special edition / Linde. [Ed.: Linde AG. Red.: Volker R. Leski]. - Wiesbaden : Linde AG, 2000. - 56 p. : Ill., . - pp: 79 - 81}, subject = {Finite-Elemente-Methode}, language = {en} } @inproceedings{HellmannsHesse2007, author = {Hellmanns, Mark and Hesse, Joachim}, title = {Ger{\"a}uschminderung und Leichtbau in Leistungsgetrieben durch den Einsatz von Werkstoffverbunden}, series = {Hybride Maschinenkonzepte und intelligente Verfahren zur Fertigung von High-Tech-Produkten : Erfolgsbeispiele zur Standortsicherung in Hochlohnl{\"a}ndern : InnoNet Kolloquium am 7. und 8.11.2007, Technologiezentrum am Europaplatz Aachen}, booktitle = {Hybride Maschinenkonzepte und intelligente Verfahren zur Fertigung von High-Tech-Produkten : Erfolgsbeispiele zur Standortsicherung in Hochlohnl{\"a}ndern : InnoNet Kolloquium am 7. und 8.11.2007, Technologiezentrum am Europaplatz Aachen}, pages = {1 -- 46}, year = {2007}, language = {de} } @inproceedings{Herzog2007, author = {Herzog, Rudolf}, title = {Das Oberfl{\"a}chenabflussmodell von Keser und die Grenzwertmethode : Die Abflussbildung im Vergleich.}, year = {2007}, abstract = {Dipl.-Ing. Rudolf Herzog , Rehm Software Berg / Ravensburg. 9 S. (S. 94-102). Beitrag zum 1. Aachener Softwaretag in der Wasserwirtschaft a1, 2007, Aachen>. Zusammenfassung [des Autors] Die grundlegenden Ans{\"a}tze der beiden Modelle sind {\"a}hnlich. Der haupts{\"a}chliche Unterschied liegt darin, dass die Grenzwertmethode die Angabe einer Bodenart erfordert, die ihrerseits wieder Probleme verursachen kann. Es kann nicht davon ausgegangen werden, dass die Bodenarten homogen anliegen. Die ersatzweise Vorgabe einer f{\"u}r alle Einzugsgebiete einheitlichen Bodenart hilft da nicht wirklich weiter. Es stellt sich vielmehr die Frage, ob der zus{\"a}tzliche Aufwand eine signifikante Verbesserung des Ereignisses zur Folge hat. Der Vorteil der Grenzwertmethode liegt auf der Hand: Die Parameterwahl erm{\"o}glicht eine flexible Steuerung des Modells, in die Abflussbildung kann differenziert eingegriffen werden. Das NA-Geschehen kann weitgehend kalibriert werden. Es ist allerdings auch zu bedenken, dass die Flexibilit{\"a}t des Modells risikobehaftet ist - die Abflussbildung kann nach Belieben beeinflusst werden. Fazit: Flexibel in der Anwendung, bei NA-Messung empfehlenswert. Im Allgemeinen geringere Abflussmengen als Keser. Die Blackbox von Keser ist zwar nicht steuerbar, entzieht sich damit aber auch Wissensdefiziten und Manipulationseinfl{\"u}ssen. {\"U}ber Parameter und deren Auswirkungen muss nicht spekuliert werden. Wenn mehrere Personen mit dem Modell von Keser arbeiten, ergeben sich im Gegensatz zur Grenzwertmethode zwangsweise dieselben Ergebnisse - gleiche geometrische Oberfl{\"a}chendaten vorausgesetzt. Außerdem kommt Keser ohne die Bodenart aus. Fazit: Bei BFG >20\%, einfache Handhabung, geringer Aufwand. Gegen{\"u}ber der Grenzwertmethode (mittlere Verh{\"a}ltnisse) jedoch etwas h{\"o}here Abfl{\"u}sse. Das Programmpaket HYKAS der Fa. Rehm Software erm{\"o}glicht u.a. den Nachweis von Kanalnetzen und bietet in diesem Zusammenhang beide Modellans{\"a}tze zur Auswahl an. Der Programmanwender kann damit eine am Datenbestand bzw. an den Vorgaben des Auftraggebers ausgerichtete Modellauswahl treffen. Die realit{\"a}tsnahe Ermittlung der Oberfl{\"a}chenabfl{\"u}sse ist kompliziert. Weitere Unwegsamkeiten warten nach der Abflussbildung bei der Abflusskonzentration auf: Es ist z.B. die Festlegung der Fließl{\"a}nge auf der Oberfl{\"a}che erforderlich... Es ist noch ein weiter Weg bis zur Kl{\"a}ranlage.}, subject = {Entw{\"a}sserung }, language = {de} } @inproceedings{Himmerich2006, author = {Himmerich, J{\"o}rg}, title = {Pipeline Integrity Management System - Probabilistische Bewertung von Bauwerken am Beispiel von Hochdruckleitungen}, year = {2006}, abstract = {In: Alfha.net / Sektion Bauingenieurwesen: 1. [Erster] Erfahrungsaustausch : Absolventen des Fachbereichs Bauingenieurwesens berichten. 13. Oktober 2006. S. 21-22. Zusammenfassung des Vortrags.}, subject = {Hochdruckleitung}, language = {de} } @inproceedings{Hoepner2008, author = {Hoepner, Gert}, title = {Jurorenstatement - Junioren zeigen sich aggressiv}, organization = {DDV Deutscher Dialogmarketing Verband e. V.}, year = {2008}, abstract = {Statement zu den Einreichung des DDP 2008}, subject = {Deutscher Direktmarketing-Verband}, language = {de} } @inproceedings{Hoevel2009, author = {Hoevel, Hartmut}, title = {Die Zukunft der Erft - Perspektiven f{\"u}r ein erheblich ver{\"a}ndertes Gew{\"a}sser}, year = {2009}, abstract = {Dipl.-Ing. Hartmut Hoevel - Erftverband, Bergheim. 3 Seiten (S. 75-77). Beitrag zum 2. Aachener Softwaretag in der Wasserwirtschaft <2, 2009, Aachen> Die Erft ist ein linker Nebenfluss des Rheins. Der Fluss ist durch eingeleitetes S{\"u}mpfungswasser aus dem rheinischen Braunkohletagebau hinsichtlich der Wassermenge und der Temperatur stark belastet. Die vorgestellten {\"U}berlegungen betreffen die Fragen: 1. Wie soll die Erft im Jahr 2045, also nach dem voraussichtlichen Ende der Tagebauaktivit{\"a}ten im Rheinischen Braunkohlerevier und damit einhergehender Beenigung der S{\"u}mpfungswassereinleitung, aussehen? 2. Wie schnell und auf welche Weise soll die Umgestaltung der Erft vonstatten gehen?}, subject = {Fließgew{\"a}sser}, language = {de} } @inproceedings{Hoffmann2009, author = {Hoffmann, Marc}, title = {Analyse und Visualisierung von zeitbezogenen Daten im Raum - Beispiele aus Hydrologie und Wasserwirtschaft}, year = {2009}, abstract = {Dipl.-Ing Marc Hoffmann - Kisters AG, Aachen. 13 S. (S. 32-44). Beitrag zum 2. Aachener Softwaretag in der Wasserwirtschaft <2, 2009, Aachen> Zahlreiche Folien, Grafiken und Praxisbeispiele}, subject = {Visualisierung}, language = {de} } @inproceedings{HuberDemny2009, author = {Huber, Brigitte and Demny, Gerd}, title = {Mischwassereinleitungen in Gew{\"a}sser nach BWK Merkblatt M3 - Vorteile des detaillierten Nachweises}, year = {2009}, abstract = {Dipl.-Ing. Brigitte Huber und Dr.-Ing. Gerd Demny - Wasserverband Eifel Rur, D{\"u}ren. 16 Seiten ( S. 59-74). Beitrag zum 2. Aachener Softwaretag in der Wasserwirtschaft <2, 2009, Aachen> Zusammenfassung [der Autoren] F{\"u}r das st{\"a}dtisch gepr{\"a}gte Einzugsgebiet des Broicher Baches sind ein vereinfachter und ein detaillierter Nachweis nach BWK-M3 durchgef{\"u}hrt worden. Dabei zeigt sich, dass die Methodik des vereinfachten Nachweises nicht geeignet ist, um eine realit{\"a}tsnahe Abbildung der einleitungsgepr{\"a}gten Abfl{\"u}sse des Gew{\"a}ssers zu erhalten. Dies ist insbesondere auf die Vernachl{\"a}ssigung von Wellentranslation und -retention im Gerinne zur{\"u}ckzuf{\"u}hren. Die dadurch entstehende Fehleinsch{\"a}tzung der Abflussverh{\"a}ltnisse versperrt den Blick auf eine situationsgerechte Maßnahmenplanung. Der mit Hilfe eines NA-Modells gef{\"u}hrte detaillierte Nachweis ist zwar in der Erstellung aufw{\"a}ndiger, zeichnet aber ein reales Bild der Abflusserh{\"o}hung durch Einleitungen. Mit Hilfe des Modells k{\"o}nnen die wesentlichen Einfl{\"u}sse schnell lokalisiert und zielf{\"u}hrende Maßnahmenvarianten identifiziert werden. In dem hier vorgestellten Beispiel des Broicher Baches k{\"o}nnen die urspr{\"u}nglich identifizierten acht Maßnahmen auf eine reduziert werden. Das Gesamtvolumen der erforderlichen R{\"u}ckhaltungen wird um die H{\"a}lfte verringert. Der Vergleich beider Nachweismethoden legt nach Ansicht der Autoren nahe, den vereinfachten Nachweis h{\"o}chstens f{\"u}r eine erste Einsch{\"a}tzung des Maßnahmenbedarfs anzuwenden. Die Maßnahmenidentifikation und -dimensionierung sollte grunds{\"a}tzlich mit der detaillierten Nachweismethode durchgef{\"u}hrt werden, die auf einem entsprechenden NA-Modell basiert. Dies gilt insbesondere f{\"u}r Gew{\"a}sserstrecken, deren Abfluss durch mehrere, hintereinander liegende Einleitungsstellen gepr{\"a}gt ist.}, subject = {Fließgew{\"a}sser}, language = {de} } @inproceedings{HuberRauStreblowetal.2014, author = {Huber, Max and Rau, Sebastian and Streblow, Rita and Wollert, J{\"o}rg and M{\"u}ller, Dirk}, title = {L{\"u}ftungskan{\"a}le als Funkstrecke}, series = {Jahreskolloquium Kommunikation in der Automation (KommA 2014) : Lemgo, 18.11.2014 / J{\"u}rgen Jasperneite ... (Hrsg.)}, booktitle = {Jahreskolloquium Kommunikation in der Automation (KommA 2014) : Lemgo, 18.11.2014 / J{\"u}rgen Jasperneite ... (Hrsg.)}, organization = {Jahreskolloquium Kommunikation in der Automation <5, 2014, Lemgo>}, isbn = {978-3-9814062-4-5}, pages = {1 -- 8}, year = {2014}, language = {de} } @inproceedings{HueningHeuermannWache2018, author = {H{\"u}ning, Felix and Heuermann, Holger and Wache, Franz-Josef}, title = {Wireless CAN}, series = {Tagungsband AALE 2018 : das Forum f{\"u}r Fachleute der Automatisierungstechnik aus Hochschulen und Wirtschaft ; 15. Fachkonferenz, Regensburg ; [15. Konferenz f{\"u}r Angewandte Automatisierungstechnik in Lehre und Entwicklung / TH K{\"o}ln; VFAALE, Verein der Freunde und F{\"o}rderer der Angewandten Automatisierungstechnik]}, booktitle = {Tagungsband AALE 2018 : das Forum f{\"u}r Fachleute der Automatisierungstechnik aus Hochschulen und Wirtschaft ; 15. Fachkonferenz, Regensburg ; [15. Konferenz f{\"u}r Angewandte Automatisierungstechnik in Lehre und Entwicklung / TH K{\"o}ln; VFAALE, Verein der Freunde und F{\"o}rderer der Angewandten Automatisierungstechnik]}, publisher = {VDE Verlag}, pages = {135 -- 144}, year = {2018}, abstract = {Das vorgestellte System zu Wireless CAN bietet die M{\"o}glichkeit, CAN kabellos zu {\"u}bertragen. Beide vorgestellten und entwickelten Konzepte funktionieren korrekt und erm{\"o}glichen den Auf-bau von kabellosen CAN Schnittstellen. Durch den kleinen Aufbau kann diese Technologie auch f{\"u}r eingebettete Systeme verwendet werden. Zudem bietet dieser Ansatz die M{\"o}glichkeit, durch die Entwicklung von geeigneten ICs die Gr{\"o}ße des Systems bis auf Bauteilgr{\"o}ße zu reduzieren, um eine noch bessere Integration in eingebettete Systeme zu erm{\"o}glichen. Dadurch wird die Technologie attraktiv f{\"u}r Einsatzgebiete, wo die oben aufgelisteten Vorteile zum Tragen kommen k{\"o}nnen. Diese Einsatzgebiete k{\"o}nnen sowohl im Automobil als auch im Industriebereich liegen.}, language = {de} }