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Inhaltsverzeichnis: Kettern, Jürgen : Grußwort des Dekans Kleiker, Walter : Grußwort des Sektionsleiters Bau des alpha.net Wijnhoven, Ralf : Bauausführung von 14 Brunnenanlagen und 4 km Rohrleitung zur Regelung des Grundwasserstandes und der Vorflut in Voerde-Mehrum. S. 10-11 Ruwisch, Thomas : Spurplanänderung im Bahnhof Düsseldorf-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 überschritten. Teil 1: Brandsimulationsberechnung. S. 18-19 Flesch, Tobias : Brandschutzingenieurwesen - Eine Ingenieurdisziplin hat die Akzeptanzschwelle überschritten. Teil 2: Tragwerksbemessung im Brandfall. S. 20-21. Müller, Bert : Neubau für die Mediengruppe RTL-Deutschland - High-Tech in dankmalgeschützter Fassade. S. 24-25. Hermens, Gereon : Erhöhung der Akzeptanz von Wasserkraft durch den Bau von Fischaufstiegsanlagen: Umweltschonende Energie für Natur und Klima. S. 26-27 Klitzing, Bastian : Kläranlagenoptimierung : Zukunftsweisende Planungen im Bereich Abwasserreinigung und Energiegewinnung. S. 28-29. Ginster, Marco : Die neue Rheinbrücke Wesel. S. 32-33 Tilke, Hermann ; Wersch, Ralf van : Bauen für einen schnellen Sport. S. 34-35.
- 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?
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.
7th International Conference on Reliability of Materials and Structures (RELMAS 2008). June 17 - 20, 2008 ; Saint Petersburg, Russia. pp 354-358. Reprint with corrections in red Introduction Analysis of advanced structures working under extreme heavy loading such as nuclear power plants and piping system should take into account the randomness of loading, geometrical and material parameters. The existing reliability are restricted mostly to the elastic working regime, e.g. allowable local stresses. Development of the limit and shakedown reliability-based analysis and design methods, exploiting potential of the shakedown working regime, is highly needed. In this paper the application of a new algorithm of probabilistic limit and shakedown analysis for shell structures is presented, in which the loading and strength of the material as well as the thickness of the shell are considered as random variables. The reliability analysis problems may be efficiently solved by using a system combining the available FE codes, a deterministic limit and shakedown analysis, and the First and Second Order Reliability Methods (FORM/SORM). Non-linear sensitivity analyses are obtained directly from the solution of the deterministic problem without extra computational costs.