@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{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{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{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{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{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{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{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{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} }