TY - CHAP A1 - Müller-Veggian, Mattea A1 - Dehnhardt, W. A1 - Merdinger, I. G. A1 - Mills, S. J. T1 - High-spin yrast states in transitional nuclei ¹³²,¹³⁴ Ce T2 - Proceedings of the International Conference on Nuclear Physics : Munich, August 27 - September 1, 1973 Y1 - 1973 SN - 0-7204-0280-8 SP - 180 PB - North Holland Pub. CY - Amsterdam ER - TY - CHAP A1 - Müller-Veggian, Mattea A1 - Dehnhardt, W. A1 - Mills, J. S. T1 - Levels in the closed neutron shell nucleus ¹⁴² Nd T2 - International Symposium on Highly Excited States in Nuclei held at Jülich from 23-26 September 1975 : proceedings; Vol. 1 Contributed papers Y1 - 1975 N1 - International Symposium on Highly Excited States in Nuclei <1975, Jülich> ; European Physical Society ; Institut für Kernphysik SP - 51 PB - Verlag des Forschungszentrums Jülich CY - Jülich ER - TY - CHAP A1 - Müller-Veggian, Mattea A1 - Neskakis, A. A1 - Lieder, R. M. A1 - Beuscher, H. T1 - Study of rotational aligned bands in ¹⁹⁰,¹⁹²,¹⁹⁴ Au T2 - Nuclear interactions : International Conference on Nuclear Interactions held in Canberra, 28 Aug. - 1 Sept. 1978 / ed. by Brian Albert Robson. - (Lecture notes in physics ; 92) Y1 - 1978 SN - 978-3-540-09102-8 N1 - Australian Academy of Science ; International Conference on Nuclear Interactions <1978, Canberra> SP - 428 PB - Springer CY - Berlin ER - TY - CHAP A1 - Weber, Hans-Joachim A1 - Porschen, W. A1 - Dietzel, F. A1 - [u.a.], ED - Streffer, Christian T1 - In vivo analysis of the influence of combined hyperthermia and gamma irradiation on euoxic and hypoxic tumor cells T2 - Cancer therapy by hyperthermia and radiation : [proceedings of the 2. International Symposium on Cancer Therapy by Hyperthermia and Radiation, Essen, 2.-4.6.1977] Y1 - 1978 SN - 0-8067-1701-7 SN - 3-541-71701-7 SP - 276 EP - 277 PB - Urban and Schwarzenberg CY - Baltimore ; Munich [u.a.] ER - TY - CHAP A1 - Müller-Veggian, Mattea A1 - Haenni, D. R. A1 - Beuscher, H. A1 - Lieder, R. M. T1 - Weak coupling of a neutron hole to a ¹⁴⁶ Gd core ; an in-beam study of ¹⁴⁵ Gd T2 - Structure of medium-heavy nuclei, 1979 : proceedings of the 6. European Physical Soc. Nuclear Divisional Conference on the Structure of Medium-Heavy Nuclei held in Rhodes, Greece, 1-4 May 1979 / ed. Committee: G. S. Anagnostatos ... - (Conference series / Institute of Physics London, Bristol ; 49) Y1 - 1980 SN - 0-85498-140-3 N1 - Conference on the Structure of Medium Heavy Nuclei <6, 1979, Rodos> ; European Physical Society / Nuclear Physics Division SP - 133 PB - Inst. of Physics CY - Bristol ER - TY - CHAP A1 - Müller-Veggian, Mattea A1 - Bochev, B. A1 - Lieder, R. M. A1 - Didelez, J. P. T1 - Measuremenmt of particle spectra of α induced non-equilibrium reactions for ²⁰⁶⁻²¹² Po T2 - Proceedings of the International Conference on Nuclear Physics. 1980,1 (1981) Y1 - 1981 N1 - Vol. 1: Abstracts of papers ; International Conference on Nuclear Physics <1980, Berkeley, Calif.> SP - 452 ER - TY - CHAP A1 - Ballmann, J. A1 - Raatschen, Hans-Jürgen A1 - Staat, Manfred T1 - High stress intensities in focussing zones of waves N2 - 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. KW - Technische Mechanik KW - Wellen KW - mechanical waves Y1 - 1985 U6 - http://dx.doi.org/10.1016/B978-0-444-42520-1.50015-3 ER - TY - CHAP A1 - Staat, Manfred A1 - Ballmann, J. T1 - Fundamental aspects of numerical methods for the propagation of multi-dimensional nonlinear waves in solids T2 - Nonlinear hyperbolic equations : theory, computations methods, and applications ; proceedings of the 2nd International Conference on Nonlinear Hyperbolic Problems, Aachen N2 - The nonlinear scalar constitutive equations of gases lead to a change in sound speed from point to point as would be found in linear inhomogeneous (and time dependent) media. The nonlinear tensor constitutive equations of solids introduce the additional local effect of solution dependent anisotropy. The speed of a wave passing through a point changes with propagation direction and its rays are inclined to the front. It is an open question whether the widely used operator splitting techniques achieve a dimensional splitting with physically reasonable results for these multi-dimensional problems. May be this is the main reason why the theoretical and numerical investigations of multi-dimensional wave propagation in nonlinear solids are so far behind gas dynamics. We hope to promote the subject a little by a discussion of some fundamental aspects of the solution of the equations of nonlinear elastodynamics. We use methods of characteristics because they only integrate mathematically exact equations which have a direct physical interpretation. KW - Nichtlineare Welle KW - Nichtlineare Gleichung KW - Festkörper KW - Elastodynamik KW - Multi-dimensional wave propagation KW - nonlinear solids KW - nonlinear tensor constitutive equation Y1 - 1989 SP - 574 EP - 588 ER - TY - CHAP A1 - Weber, S. A1 - Terstegge, Andreas A1 - Halling, H. A1 - Herzog, H. A1 - Reinartz, R. A1 - Reinhart, P. A1 - Rongen, F. A1 - Müller-Gärtner, H.-W. T1 - The design of an animal PET: flexible geometry for achieving optimal spatial resolution or high sensitivity T2 - Conference record / 1995 IEEE Nuclear Science Symposium and Medical Imaging, October 21 - 28, 1995, San Francisco ; vol. 2 Y1 - 1995 SN - 078033180X ; 0780331818 ; 0780331826 SP - 1002 EP - 1005 PB - IEEE CY - Piscataway, NJ ER - TY - CHAP A1 - Weber, S. A1 - Terstegge, Andreas A1 - Engels, R. A1 - Herzog, H. A1 - Reinartz, R. A1 - Reinhart, P. A1 - Rongen, F. A1 - Müller-Gärtner, H. W. A1 - Halling, H. T1 - The KFA TierPET: performance characteristics and measurements T2 - Conference record / 1996 IEEE Nuclear Science Symposium [and Medical Imaging], November 2 - 9, 1996, Anaheim, California ; vol. 2 Y1 - 1996 SN - 0-7803-3534-1 SN - 1082-3654 SP - 1117 EP - 1119 PB - IEEE CY - Piscataway, NJ ER - TY - CHAP A1 - Staat, Manfred A1 - Heitzer, Michael T1 - Limit and shakedown analysis for plastic design N2 - Limit and shakedown theorems are exact theories of classical plasticity for the direct computation of safety factors or of the load carrying capacity under constant and varying loads. Simple versions of limit and shakedown analysis are the basis of all design codes for pressure vessels and pipings. Using Finite Element Methods more realistic modeling can be used for a more rational design. The methods can be extended to yield optimum plastic design. In this paper we present a first implementation in FE of limit and shakedown analyses for perfectly plastic material. Limit and shakedown analyses are done of a pipe–junction and a interaction diagram is calculated. The results are in good correspondence with the analytic solution we give in the appendix. KW - Einspielen KW - Traglast KW - Finite-Elemente-Methode KW - Traglastanalyse KW - Einspielanalyse KW - FEM KW - limit analysis KW - shakedown analysis Y1 - 1997 ER - TY - CHAP A1 - Terstegge, Andreas A1 - Weber, S. A1 - Herzog, H. A1 - Müller-Gärtner, H. W. A1 - Halling, H. T1 - Design and implementation aspects of a 3D reconstruction algorithm for the Jülich TierPET system T2 - 1997 International Meeting on Fully ThreeDimensional Image Reconstruction in Radiology and Nuclear Medicine : 3D97 Y1 - 1997 SP - 170 EP - 173 ER - TY - CHAP A1 - Burgazzi, L. A1 - Fiorini, F. A1 - De Magistris, W. (u.a.) A1 - Lensa, W. von A1 - Staat, Manfred A1 - Altes, J. T1 - Reliability Assessment of Passive Safety Systems T2 - Proceedings of the 6th International Conference on Nuclear Engineering : ICONE : May 10 - 14, 1998, San Diego, Calif. Y1 - 1998 N1 - CD-ROM PB - American Society of Mechanical Engineers CY - New York ER - TY - CHAP A1 - Heitzer, M. A1 - Staat, Manfred T1 - Direct FEM approach to design-by-analysis of pressurized components N2 - 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 N2 - Abstracts der ACHEMA 2000 - International Meeting on Chemical Engineering, Environmental Protection and Biotechnology, May 22 - 27, 2000. Frankfurt am Main. KW - Finite-Elemente-Methode KW - Finite-Elemente-Methode KW - limit analysis KW - shakedown analysis Y1 - 2000 ER - TY - CHAP A1 - Staat, Manfred A1 - Heitzer, Michael T1 - Direct static FEM approach to limit and shakedown analysis N2 - Safety and reliability of structures may be assessed indirectly by stress distributions. Limit and shakedown theorems are simplified but exact methods of plasticity that provide safety factors directly in the loading space. These theorems may be used for a direct definition of the limit state function for failure by plastic collapse or by inadaptation. In a FEM formulation the limit state function is obtained from a nonlinear optimization problem. This direct approach reduces considerably the necessary knowledge of uncertain technological input data, the computing time, and the numerical error. Moreover, the direct way leads to highly effective and precise reliability analyses. The theorems are implemented into a general purpose FEM program in a way capable of large-scale analysis. KW - Einspielen KW - Nichtlineare Optimierung KW - Shakedown KW - Shakedown KW - limit load KW - lower bound theorem KW - nonlinear optimization KW - reliability Y1 - 2000 ER - TY - CHAP A1 - Peters, H. A1 - Ziemons, Karl A1 - Dammers, J. A1 - Müller-Veggian, Mattea ED - Nenonen, Jukka T1 - Continuous head motion detection during MEG measurement using head location coils T2 - Proceedings of the 12th International Conference on Biomagnetism : August 13 - 17, 2000, Helsinki University of Technology, Espoo, Finland Y1 - 2001 SN - 951-22-5401-8 N1 - Biomag <12, 2000, Espoo> ; Teknillinen Korkeakoulu ; International Conference on Biomagnetism <12, 2000, Espoo> PB - Helsinki Univ. of Technology, Laboratory of Biomedical Engineering CY - Espoo ER - TY - CHAP A1 - Kraft, Bodo A1 - Meyer, Oliver A1 - Nagl, Manfred T1 - Graph technology support for conceptual design in civil engineering N2 - In: Advances in intelligent computing in engineering : proceedings of the 9.International EG-ICE Workshop ; Darmstadt, (01 - 03 August) 2002 / Martina Schnellenbach-Held ... (eds.) . - Düsseldorf: VDI-Verl., 2002 .- Fortschritt-Berichte VDI, Reihe 4, Bauingenieurwesen ; 180 ; S. 1-35 The paper describes a novel way to support conceptual design in civil engineering. The designer uses semantical tools guaranteeing certain internal structures of the design result but also the fulfillment of various constraints. Two different approaches and corresponding tools are discussed: (a) Visually specified tools with automatic code generation to determine a design structure as well as fixing various constraints a design has to obey. These tools are also valuable for design knowledge specialist. (b) Extensions of existing CAD tools to provide semantical knowledge to be used by an architect. It is sketched how these different tools can be combined in the future. The main part of the paper discusses the concepts and realization of two prototypes following the two above approaches. The paper especially discusses that specific graphs and the specification of their structure are useful for both tool realization projects. KW - CAD KW - CAD ; KW - CAD KW - civil engineering Y1 - 2002 SN - 3-18-318004-9 ER - TY - CHAP A1 - Staat, Manfred A1 - Heitzer, Michael T1 - The restricted influence of kinematic hardening on shakedown loads N2 - Structural design analyses are conducted with the aim of verifying the exclusion of ratcheting. To this end it is important to make a clear distinction between the shakedown range and the ratcheting range. In cyclic plasticity more sophisticated hardening models have been suggested in order to model the strain evolution observed in ratcheting experiments. The hardening models used in shakedown analysis are comparatively simple. It is shown that shakedown analysis can make quite stable predictions of admissible load ranges despite the simplicity of the underlying hardening models. A linear and a nonlinear kinematic hardening model of two-surface plasticity are compared in material shakedown analysis. Both give identical or similar shakedown ranges. Structural shakedown analyses show that the loading may have a more pronounced effect than the hardening model. KW - Biomedizinische Technik KW - Einspielen KW - Shakedown KW - Ratcheting KW - Bruchmechanik KW - shakedown KW - material shakedown KW - linear kinematic hardening KW - nonlinear kinematic hardening KW - ratchetting Y1 - 2002 ER - TY - CHAP A1 - Kraft, Bodo A1 - Nagl, Manfred T1 - Semantic tool support for conceptual design N2 - ITCE-2003 - 4th Joint Symposium on Information Technology in Civil Engineering ed Flood, I., Seite 1-12, ASCE (CD-ROM), Nashville, USA In this paper we discussed graph based tools to support architects during the conceptual design phase. Conceptual Design is defined before constructive design; the used concepts are more abstract. We develop two graph based approaches, a topdown using the graph rewriting system PROGRES and a more industrially oriented approach, where we extend the CAD system ArchiCAD. In both approaches, knowledge can be defined by a knowledge engineer, in the top-down approach in the domain model graph, in the bottom-up approach in the in an XML file. The defined knowledge is used to incrementally check the sketch and to inform the architect about violations of the defined knowledge. Our goal is to discover design error as soon as possible and to support the architect to design buildings with consideration of conceptual knowledge. KW - CAD KW - CAD KW - Bauingenieurwesen KW - CAD KW - civil engineering Y1 - 2003 ER - TY - CHAP A1 - Digel, Ilya A1 - Temiz Artmann, Aysegül A1 - Artmann, Gerhard A1 - Nojima, H. T1 - Plasma cluster ions (PCI) influence on microbial cells viability : [abstract] N2 - 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. KW - Clusterion KW - Raumluft KW - Luftreiniger KW - Plasmacluster ion technology KW - Air purification Y1 - 2003 ER -