TY  - CHAP
A1  - Surtees, A. J.
A1  - Gillespie, A.
A1  - Kern, Alexander
A1  - Rousseau, A.
T1  - DEVELOPMENT OF A RISK ASSESSMENT CALCULATOR BASED ON A SIMPLIFIED FORM OF THE IEC 62305-2 STANDARD ON LIGHTNING PROTECTION
N2  - Neue Blitzschutznorm IEC 62305. Entwicklung einer einfachen Software zur Risikoabwägung
N2  - IEC Technical Committee 81 is currently creating the new IEC 62305 series of standards on Lightning Protection. Working Group 9 is responsible for Part 2 of this series, which deals with the assessment and management of risk its CDV (Committee Draft for Voting) stage and has been circulated to National Committees for comment. The paper details the development of the Simplified IEC Risk Assessment Calculator software tool as described in Informative Annex J of IEC62305-2 Ed.1/CDV 2. This tool is intended as a simplified implementation of the more rigorous treatment of risk management found in the written document. It is designed to be relatively intuitive for users who wish to obtain an initial assessment of risk sensitivity, but should not be considered a substitute to a full understanding of the methods provided in the standard when dealing with more complicated structures or those where greater risks to personal or system operation are involved.
KW  - Risiko
KW  - Risikoabwägung
KW  - Blitzrisiko
KW  - Blitzschutz
KW  - Risk
KW  - Risk Management
KW  - Risk Assessment
KW  - Lightning Risk
KW  - Lightning Protection
Y1  - 2004
ER  - 
TY  - CHAP
A1  - Kern, Alexander
A1  - Heidler, Fridolin
A1  - Seevers, M.
A1  - Zischank, Wolfgang J.
T1  - Magnetic Fields and Induced Voltages in case of a Direct Strike - Comparison of Results obtained from Measurements at a Scaled Building to those of IEC 62305-4
N2  - In the paper the results obtained from experiments at a modelled reinforced building in case of a direct lightning strike are compared with calculations. The comparison includes peak values of the magnetic field Hmax, its derivative (dH/dt)max and of induced voltages umax in typical cable routings. The experiments are performed at a 1:6 scaled building and the results are extrapolated using the similarity relations theory. The calculations are based on the approximate formulae given in IEC 62305-4 and have to be supplemented by a rough estimation of the additional shielding effect of a second reinforcement layer. The comparison shows, that the measured peak values of the magnetic field and its derivative are mostly lower than the calculated. The induced voltages are in good agreement. Hence, calculations of the induced voltages based on IEC 62305-4 are a good method for lightning protection studies of buildings, where the reinforcement is used as a grid-like electromagnetic shield.
N2  - Auswirkungen eines direkten Blitzeinschlages auf ein Gebäude, Vergleich von experimentellen Ergebnissen und Berechnungen basierend auf einer Formel aus der IEC 62305-4
KW  - Blitz
KW  - Direkter Blitzschlag
KW  - Elektromagnetischer Schutzschild
KW  - Magnetische Felder
KW  - Induzierte Spannungen
KW  - Kalkulation
KW  - Direct lightning strike
KW  - electromagnetic shield
KW  - magnetic fields
KW  - induced voltages
KW  - calculations
Y1  - 2004
SN  - 0304-3886
N1  - Journal of electrostatics: Beitr. auf S. 379 - 385. doi:10.1016/j.elstat.2006.09.004
ER  - 
TY  - CHAP
A1  - Zischank, Wolfgang J.
A1  - Heidler, Fridolin
A1  - Wiesinger, J.
A1  - Stimper, K.
A1  - Kern, Alexander
A1  - Seevers, M.
T1  - Magnetic Fields and Induced Voltages inside LPZ 1 Measured at a 1:6 Scale Model Building
N2  - Laborexperimente zu Blitzschutzzonen in Stahlbetongebäuden anhand eines Modells im Maßstab 1:6
N2  - For the application of the concept of Lightning Protection Zones (LPZ), the knowledge of the magnetic fields and induced voltages inside a structure is necessary. Laboratory experiments have been conducted at a downscaled model of a building (scale factor 1:6) to determine these electromagnetic quantities in case of a direct strike to the structure. The model (3 m x 2 m x 2 m) represented a small industrial building using the reinforcement of the concrete as electromagnetic shield. The magnetic fields and magnetic field derivatives were measured at several location inside the scaled model. Further, the voltages induced on three typical cable routes inside the model was determined. The influence of the lightning current waveshape, point-of-strike, bonding of the cable routes, and bridging of an expansion joint in the middle of the building on these quantities was studied.
KW  - Blitzschlag
KW  - Elektromagnetischer Schutzschild
KW  - Stahlbeton
KW  - Maßstabsgetreues Modell
KW  - Lightning
KW  - electromagnetic shielding
KW  - reinforced concrete
KW  - scaled model
Y1  - 2004
ER  - 
TY  - JOUR
A1  - Vu, Duc-Khoi
A1  - Staat, Manfred
T1  - An algorithm for shakedown analysis of structure with temperature dependent yield stress
N2  - This work is an attempt to answer the question: How to use convex programming in shakedown analysis of structures made of materials with temperature-dependent properties. Based on recently established shakedown theorems and formulations, a dual relationship between upper and lower bounds of the shakedown limit load is found, an algorithmfor shakedown analysis is proposed. While the original problem is neither convex nor concave, the algorithm presented here has the advantage of employing convex programming tools.
KW  - Einspielen <Werkstoff>
KW  - Temperaturabhängigkeit
KW  - Fließgrenze
KW  - Shakedown
KW  - shakedown analysis
KW  - yield stress
Y1  - 2004
ER  - 
TY  - JOUR
A1  - Kühn, Raoul-Roman
A1  - Haugner, Werner
A1  - Staat, Manfred
A1  - Sponagel, Stefan
T1  - A Two Phase Mixture Model based on Bone Observation
N2  - An optimization method is developed to describe the mechanical behaviour of the human cancellous bone. The method is based on a mixture theory. A careful observation of the behaviour of the bone material leads to the hypothesis that the bone density is controlled by the principal stress trajectories (Wolff’s law). The basic idea of the developed method is the coupling of a scalar value via an eigenvalue problem to the principal stress trajectories. On the one hand this theory will permit a prediction of the reaction of the biological bone structure after the implantation of a prosthesis, on the other hand it may be useful in engineering optimization problems. An analytical example shows its efficiency.
KW  - Knochen
KW  - Knochenbildung
KW  - Knochenchirugie
KW  - Strukturanalyse
KW  - Schwammknochen
KW  - Knochendichte
KW  - Wolffsches Gesetz
KW  - bone structure
KW  - bone density
KW  - Wolff's Law
KW  - cancellous bone
Y1  - 2004
ER  - 
TY  - JOUR
A1  - Dersch, Jürgen
A1  - Geyer, Michael
A1  - Herrmann, Ulf
A1  - Jones, Scott A.
A1  - Kelly, Bruce
A1  - Kistner, Rainer
A1  - Ortmanns, Winfried
A1  - Pitz-Paal, Robert
A1  - Price, Henry
T1  - Trough integration into power plants—a study on the performance and economy of integrated solar combined cycle systems
JF  - Energy : the international journal
Y1  - 2004
U6  - http://dx.doi.org/10.1016/S0360-5442(03)00199-3
SN  - 0360-5442
N1  - SolarPACES 2002, Zürich, Switzerland, 4–6 September 2002
VL  - 29
IS  - 5-6 (Special Issue SolarPaces)
SP  - 947
EP  - 959
ER  - 
TY  - CHAP
A1  - Herrmann, Ulf
A1  - Graeter, F.
A1  - Nava, P.
ED  - Ramos, C.
T1  - Performance of the SKAL-ET Collector Loop at KJC Operating Company
T2  - 12th International Symposium Solar Power and Chemical Energy Systems, October 6-8, 2004, Oaxaca Mexico ; SolarPACES International Symposium, 12
Y1  - 2004
SN  - 968-6114-18-1
PB  - Instituto de Investigaciones Electricas
CY  - [s.l.]
ER  - 
TY  - CHAP
A1  - Lüpfert, E.
A1  - Herrmann, Ulf
A1  - Price, Henry
A1  - Zarza, E.
A1  - Kistener, R.
ED  - Ramos, C.
T1  - Towards Standard Performance Analysis for Parabolic Trough Collector Fields
T2  - 12th International Symposium Solar Power and Chemical Energy Systems, October 6-8, 2004, Oaxaca Mexico ; SolarPACES International Symposium, 12
Y1  - 2004
SN  - 968-6114-18-1
PB  - Instituto de Investigaciones Electricas
CY  - [s.l.]
ER  - 
TY  - JOUR
A1  - Cesari, Francesca
A1  - Rennekampff, Verena
A1  - Vintersten, Kristina
A1  - Vuong, Lam Giang
A1  - Seibler, Jost
A1  - Bode, Jürgen
A1  - Wiebel, Franziska F.
A1  - Nordheim, Alfred
T1  - Elk-1 knock-out mice engineered by Flp recombinase-mediated cassette exchange
JF  - Genesis : The Journal of Genetics and Development
Y1  - 2004
U6  - http://dx.doi.org/10.1002/gene.20003
SN  - 1526-968X
VL  - 38
IS  - 2
SP  - 87
EP  - 92
ER  - 
TY  - JOUR
A1  - Chudoba, Rostislav
A1  - Butenweg, Christoph
A1  - Peiffer, F.
T1  - Technical information system for collaborative material research
JF  - Advances in engineering software
Y1  - 2004
U6  - http://dx.doi.org/10.1016/j.advengsoft.2004.03.021
SN  - 1873-5339 (E-Journal); 0965-9978 (Print)
VL  - Volume 35
IS  - Issue 10-11
SP  - 747
EP  - 756
ER  - 
TY  - JOUR
A1  - Holler, S.
A1  - Butenweg, Christoph
A1  - Noh, S.-Y.
A1  - Meskouris, Konstantin
T1  - Computational model of textile-reinforced concrete structures
JF  - Computers & structures : an international journal
Y1  - 2004
U6  - http://dx.doi.org/10.1016/j.compstruc.2004.03.076
SN  - 1879-2243 (E-Journal); 0045-7949 (Print)
VL  - Volume 82
IS  - Issues 23-26
SP  - 1971
EP  - 1979
ER  - 
TY  - CHAP
A1  - Meskouris, Konstantin
A1  - Butenweg, Christoph
A1  - Mistler, Michael
A1  - Kuhlmann, Wolfram
T1  - Seismic behaviour of historic masonry buildings
T2  - 7th National Congress on Mechanics : Chania, Crete, June 24 - 26, 2004 ; proceedings / ed. A. Kounadis ....
Y1  - 2004
SP  - 47
EP  - 49
PB  - Hellenic Society for Theoretical and Applied Mechanics
CY  - Chania
ER  - 
TY  - CHAP
A1  - Kuhlmann, Wolfram
A1  - Butenweg, Christoph
A1  - Lopez, Marijen
A1  - Fernandez, Sebastian
T1  - Seismic vulnerability assessment of the historic Aachen Cathedral
T2  - Conference proceedings / 13th World Conference on Earthquake Engineering [Vancouver, British Columbia, Canada, August 1 - 6, 2004] / [hosted by CAEE/ACGP, Canadian Association for Earthquake Engineering]
Y1  - 2004
SP  - 1
EP  - 14
PB  - CAEE
CY  - Vancouver
ER  - 
TY  - CHAP
A1  - Kob, Malte
A1  - Butenweg, Christoph
T1  - A finite element model of the interaction between intra-and extralaryngeal muscles
T2  - International Conference on Voice Physiology and Biomechanics, August 18-20, 2004, Marseille, France
Y1  - 2004
SP  - 1
EP  - 2
ER  - 
TY  - CHAP
A1  - Kalker, Ines
A1  - Toll, B.
A1  - Holler, Stefan
A1  - Butenweg, Christoph
A1  - Topping, B. H. V.
A1  - Mota Soares, C. A.
T1  - Capacity analysis of textile retrofitted unreinforced masonry
T2  - Proceedings of the Seventh International Conference on Computational Structures Technology : [Lisbon, Portugal, 7 - 9 September 2004] / ed. by B. H. V. Topping ...
Y1  - 2004
SN  - 0-948749-95-4
U6  - http://dx.doi.org/10.4203/ccp.79.194
SP  - 431
EP  - 432
PB  - Civil-Comp Press
CY  - Stirling
ER  - 
TY  - JOUR
A1  - Ndoumbè Mbonjo Mbonjo, H.
A1  - Streckert, J.
A1  - Bitz, Andreas
A1  - Hansen, V.
A1  - Glasmachers, A.
A1  - Gencol, S.
A1  - Rozic, D.
T1  - Generic UMTS test signal for RF bioelectromagnetic studies
JF  - Bioelectromagnetics
Y1  - 2004
U6  - http://dx.doi.org/10.1002/bem.20007
SN  - 1521-186X
VL  - 25
IS  - 6
SP  - 415
EP  - 425
ER  - 
TY  - JOUR
A1  - Sommer, Angela M.
A1  - Streckert, Joachim
A1  - Bitz, Andreas
A1  - Hansen, Volkert W.
A1  - Lerchl, Alexander
T1  - No effects of GSM-modulated 900 MHz electromagnetic fields on survival rate and spontaneous development of lymphoma in female AKR/J mice
JF  - BMC Cancer
Y1  - 2004
U6  - http://dx.doi.org/10.1186/1471-2407-4-77
VL  - 77
IS  - 4
ER  - 
TY  - JOUR
A1  - Hans, Stefan
A1  - Scheer, Nico
A1  - Riedl, Iris
A1  - Weizäcker, Elisabeth von
A1  - Blader, Patrick
A1  - Campos-Ortega, José A.
T1  - her3, a zebrafish member of the hairy-E(spl) family, is repressed by Notch signalling
JF  - Development
Y1  - 2004
U6  - http://dx.doi.org/10.1242/dev.01167
SN  - 1477-9129
VL  - 131
IS  - 12
SP  - 2957
EP  - 2969
ER  - 
TY  - CHAP
A1  - Seboldt, Wolfgang
A1  - Blome, Hans-Joachim
A1  - Dachwald, Bernd
A1  - Richter, Lutz
T1  - Proposal for an integrated European space exploration strategy
T2  - 55th International Astronautical Congress of the International Astronautical Federation, the International Academy of Astronautics, and the International Institute of Space Law
N2  - Recently, in his vision for space exploration, US president Bush announced to extend human presence across the solar system, starting with a human return to the Moon as early as 2015 in preparation for human exploration of Mars and other destinations. In Europe, an exploration program, termed AURORA, was established by ESA in 2001 – funded on a voluntary basis by ESA member states – with a clear focus on Mars and the ultimate goal of landing humans on Mars around 2030 in international cooperation. In 2003, a Human Spaceflight Vision Group was appointed by ESA with the task to develop a vision for the role of human spaceflight during the next quarter of the century. The resulting vision focused on a European-led lunar exploration initiative as part of a multi-decade, international effort to strengthen European identity and economy. After a review of the situation in Europe concerning space exploration, the paper outlines an approach for a consistent positioning of exploration within the existing European space programs, identifies destinations, and develops corresponding scenarios for an integrated strategy, starting with robotic missions to the Moon, Mars, and near-Earth asteroids. The interests of the European planetary in-situ science community, which recently met at DLR Cologne, are considered. Potential robotic lunar missions comprise polar landings to search for frozen volatiles and a sample return. For Mars, the implementation of a modest robotic landing mission in 2009 to demonstrate the capability for landing and prepare more ambitious and complex missions is discussed. For near-Earth asteroid exploration, a low-cost in-situ technology demonstration mission could yield important results. All proposed scenarios offer excellent science and could therefore create synergies between ESA’s mandatory and optional programs in the area of planetary science and exploration. The paper intents to stimulate the European discussion on space exploration and reflects the personal view of the authors.
Y1  - 2004
N1  - 55th International Astronautical Congress 2004 - Vancouver, Canada
SP  - 1
EP  - 10
ER  - 
TY  - CHAP
A1  - Mistler, M.
A1  - Butenweg, Christoph
A1  - Anthoine, A.
T1  - Evaluation of the failure criterion for masonry by homogenisation
T2  - Proceedings of the Seventh International Conference on Computational Structures Technology : [Lisbon, Portugal, 7 - 9 September 2004] / ed. by B. H. V. Topping and C.A. Mota Soares
Y1  - 2004
SN  - 0-948749-95-4
U6  - http://dx.doi.org/10.4203/ccp.79.201
PB  - Civil-Comp Press
CY  - Stirling
ER  -