@article{HeuermannRumiantsevSchott2004, author = {Heuermann, Holger and Rumiantsev, A. and Schott, S.}, title = {Advanced on-wafer multiport calibration methods for mono- and mixed-mode device characterization}, series = {On wafer characterization : 63rd ARFTG conference digest, spring 2004, 11 June 2004, Fort Worth, TX / Automatic RF Techniques Group. [Conference chair: John Cable. Publication chair: J. G. Burns]}, journal = {On wafer characterization : 63rd ARFTG conference digest, spring 2004, 11 June 2004, Fort Worth, TX / Automatic RF Techniques Group. [Conference chair: John Cable. Publication chair: J. G. Burns]}, publisher = {IEEE Operations Center}, address = {Piscataway, NJ}, isbn = {0-7803-8371-0}, pages = {91 -- 96}, year = {2004}, language = {en} } @article{Heuermann2003, author = {Heuermann, Holger}, title = {GSOLT: the calibration procedure for all multi-port vector network analyzers}, series = {IEEE MTT-S International Microwave Symposium digest : Philadelphia, Pennsylvania, 8 - 13 June 2003 ; [including: 2003 International Microwave Symposium digest, vol. 1-3, RF Integrated Circuit Symposium digest, Automatic RF Techniques Group Symposium digest . Vol. 3}, journal = {IEEE MTT-S International Microwave Symposium digest : Philadelphia, Pennsylvania, 8 - 13 June 2003 ; [including: 2003 International Microwave Symposium digest, vol. 1-3, RF Integrated Circuit Symposium digest, Automatic RF Techniques Group Symposium digest . Vol. 3}, publisher = {IEEE}, address = {Piscataway, NJ}, isbn = {0-780-37696-X}, pages = {1815 -- 1818}, year = {2003}, language = {en} } @article{SammFaissnerFrenzeletal.1980, author = {Samm, Doris and Faissner, H. and Frenzel, E. and Heinrigs, W.}, title = {Limit on axion decay into an electron pair / H. Faissner, E. Frenzel, W. Heinrigs, A. Preussger, D. Samm und U. Samm}, series = {Physics Letters B. Vol. 96 (1980), H. Issues 1-2}, journal = {Physics Letters B. Vol. 96 (1980), H. Issues 1-2}, pages = {201 -- 205}, year = {1980}, language = {en} } @article{SammFaissnerFrenzeletal.1980, author = {Samm, Doris and Faissner, H. and Frenzel, E. and Heinrigs, W.}, title = {Observation of the two-photon decay of a light penetrating particle / H. Faissner, E. Frenzel, W. Heinrigs, A. Preussger, D. Samm und U. Samm}, series = {Physics Letters B. Vol. 103 (1980), H. Issues 3}, journal = {Physics Letters B. Vol. 103 (1980), H. Issues 3}, pages = {234 -- 240}, year = {1980}, language = {en} } @article{SammFaissnerHeinrigsetal.1989, author = {Samm, Doris and Faissner, H. and Heinrigs, W. and Preussger, A.}, title = {Search for the two-photon decay of a light penetrating particle from a 590 MeV proton beam dump / Faissner, H.; Heinrigs, W.; Preussger, A.; Reitz, J.; Samm, D. [u.a.]}, series = {Zeitschrift f{\"u}r Physik, C Particles and Fields. 44 (1989), H. 4}, journal = {Zeitschrift f{\"u}r Physik, C Particles and Fields. 44 (1989), H. 4}, pages = {557 -- 566}, year = {1989}, language = {en} } @article{KaemperPicardBrilletal.2003, author = {K{\"a}mper, Klaus-Peter and Picard, Antoni and Brill, Manfred and Cassel, Detlef (u.a.)}, title = {The Virtual Cleanroom - a new tool in teaching MST process technologies}, series = {mst news International newsletter on micro - nano Integration (2003)}, journal = {mst news International newsletter on micro - nano Integration (2003)}, isbn = {0948-3128}, pages = {35 -- 36}, year = {2003}, language = {en} } @article{SammBosetti1990, author = {Samm, Doris and Bosetti, P.-C.}, title = {Testmessungen an einem grossflaechigen (Durchmesser 35 cm) Photomultiplier Test measurements of a large-area (diameter 35 cm) photomultiplier / Bosetti, P.-C.; ... Samm, D. [u.a.]}, series = {Verhandlungen der Deutschen Physikalischen Gesellschaft. 25 (1990), H. 1}, journal = {Verhandlungen der Deutschen Physikalischen Gesellschaft. 25 (1990), H. 1}, pages = {33 -- 33}, year = {1990}, language = {en} } @article{SammBosetti1990, author = {Samm, Doris and Bosetti, P.-C.}, title = {DUMAND und die Suche nach extraterrestrischen Neutrinos / DUMAND and the search for extraterrestrial neutrinos / Bosetti, P.-C.; ... Samm, D. [u.a.]}, series = {Verhandlungen der Deutschen Physikalischen Gesellschaft. 25 (1990), H. 1}, journal = {Verhandlungen der Deutschen Physikalischen Gesellschaft. 25 (1990), H. 1}, pages = {88 -- 88}, year = {1990}, language = {en} } @article{SammFaissnerGoettlicheretal.1992, author = {Samm, Doris and Faissner, H. and G{\"o}ttlicher, P. and Matela, H.}, title = {Search for scalar and pseudoscalar bosons emitted in nuclear decays via their interactions / Faissner, H.; Goettlicher, P. ; Matela, H. ; Samm, D.}, series = {Zeitschrift f{\"u}r Physik A Hadrons and Nuclei. 341 (1992), H. 3}, journal = {Zeitschrift f{\"u}r Physik A Hadrons and Nuclei. 341 (1992), H. 3}, pages = {359 -- 364}, year = {1992}, language = {en} } @article{SammFaissnerMoersetal.1993, author = {Samm, Doris and Faissner, H. and Moers, T. and Priem, R.}, title = {Modular wall-less drift chamber for muon detection at the LHC / H. Faissner, Th. Moers, R. Priem, ... , D. Samm [u.a.]}, series = {Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 330 (1993), H. 1-2}, journal = {Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 330 (1993), H. 1-2}, pages = {76 -- 82}, year = {1993}, language = {en} } @article{Samm1994, author = {Samm, Doris}, title = {DUMAND and the search for high energy neutrino point sources / Samm, Doris [u.a.]}, series = {Trends in astroparticle physics / ed. by Peter Christian Bosetti}, journal = {Trends in astroparticle physics / ed. by Peter Christian Bosetti}, publisher = {Teubner}, address = {Stuttgart}, isbn = {3-8154-3017-8}, pages = {9 -- 20}, year = {1994}, language = {en} } @article{Heuermann2004, author = {Heuermann, Holger}, title = {A Synthesis Technique for Mono- and Mixed-Mode Symmetrical Filter}, series = {Conference proceedings : Tuesday 12th, Wednesday 13th and Thursday 14th October, [RAI International Exhibition and Congress Centre, Amsterdam ; part of European Microwave Week 2004] / EuMA, European Microwave Association . Vol. 1}, journal = {Conference proceedings : Tuesday 12th, Wednesday 13th and Thursday 14th October, [RAI International Exhibition and Congress Centre, Amsterdam ; part of European Microwave Week 2004] / EuMA, European Microwave Association . Vol. 1}, publisher = {Horizon House Publ}, address = {London}, isbn = {1-580-53992-0}, pages = {309 -- 312}, year = {2004}, language = {en} } @article{FredebeulKrein1999, author = {Fredebeul-Krein, Markus}, title = {The case for a more binding WTO agreement on regulatory principles in telecommunication markets}, series = {Telecommunications policy. vol. 23 (1999), H. afl. 9}, journal = {Telecommunications policy. vol. 23 (1999), H. afl. 9}, isbn = {0308-5961}, pages = {625 -- 644}, year = {1999}, language = {en} } @article{FredebeulKrein1997, author = {Fredebeul-Krein, Markus}, title = {Telecommunications and WTO discipline : an assessment of the WTO agreement on telecommunication services}, series = {Telecommunications policy. 21 (1997), H. 6}, journal = {Telecommunications policy. 21 (1997), H. 6}, isbn = {0308-5961}, pages = {477 -- 491}, year = {1997}, language = {en} } @article{Staat2000, author = {Staat, Manfred}, title = {Direct FEM Limit and Shakedown Analysis with Uncertain Data}, year = {2000}, abstract = {The structural reliability with respect to plastic collapse or to inadaptation is formulated on the basis of the lower bound limit and shakedown theorems. A direct definition of the limit state function is achieved which permits the use of the highly effective first order reliability methods (FORM) is achieved. The theorems are implemented into a general purpose FEM program in a way capable of large-scale analysis. The limit state function and its gradient are obtained from a mathematical optimization problem. This direct approach reduces considerably the necessary knowledge of uncertain technological input data, the computing time, and the numerical error, leading to highly effective and precise reliability analyses.}, subject = {Finite-Elemente-Methode}, language = {en} } @article{VuStaat2004, author = {Vu, Duc-Khoi and Staat, Manfred}, title = {An algorithm for shakedown analysis of structure with temperature dependent yield stress}, year = {2004}, abstract = {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.}, subject = {Einspielen }, language = {en} } @article{KuehnHaugnerStaatetal.2004, author = {K{\"u}hn, Raoul-Roman and Haugner, Werner and Staat, Manfred and Sponagel, Stefan}, title = {A Two Phase Mixture Model based on Bone Observation}, year = {2004}, abstract = {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.}, subject = {Knochen}, language = {en} } @article{BaroudWuBohneretal.2003, author = {Baroud, G. and Wu, J.Z. and Bohner, M and Sponagel, Stefan and Steffen, T.}, title = {How to determine the permeability for cement infiltration into osteoporotic cancellous bone}, series = {Medical Engineering \& Physics. 25 (2003), H. 4}, journal = {Medical Engineering \& Physics. 25 (2003), H. 4}, issn = {1350-4533}, pages = {283 -- 288}, year = {2003}, abstract = {Cement augmentation is an emerging surgical procedure in which bone cement is used to infiltrate and reinforce osteoporotic vertebrae. Although this infiltration procedure has been widely applied, it is performed empirically and little is known about the flow characteristics of cement during the injection process. We present a theoretical and experimental approach to investigate the intertrabecular bone permeability during the infiltration procedure. The cement permeability was considered to be dependent on time, bone porosity, and cement viscosity in our analysis. In order to determine the time-dependent permeability, ten cancellous bone cores were harvested from osteoporotic vertebrae, infiltrated with acrylic cement at a constant flow rate, and the pressure drop across the cores during the infiltration was measured. The viscosity dependence of the permeability was determined based on published experimental data. The theoretical model for the permeability as a function of bone porosity and time was then fit to the testing data. Our findings suggest that the intertrabecular bone permeability depends strongly on time. For instance, the initial permeability (60.89 mm4/N.s) reduced to approximately 63\% of its original value within 18 seconds. This study is the first to analyze cement flow through osteoporotic bone. The theoretical and experimental models provided in this paper are generic. Thus, they can be used to systematically study and optimize the infiltration process for clinical practice.}, subject = {Osteoporose}, language = {en} } @article{Gebhardt2006, author = {Gebhardt, Andreas}, title = {Generative Manufacturing of Ceramic Parts "Vision Rapid Prototyping"}, year = {2006}, abstract = {Table of Contents Introduction 1. Generative Manufacturing Processes 2. Classification of Generative Manufacturing Processes 3. Application of Generative Processes on the Fabrication of Ceramic Parts 3.1 Extrusion 3.2 3D-Printing 3.3 Sintering - Laser Sintering 3.4 Layer-Laminate Processes 3.5 Stereolithography (sometimes written: Stereo Lithography) 4. Layer Milling 5. Conclusion - Vision}, subject = {Rapid prototyping}, language = {en} } @article{KaemperPicardBrilletal.2003, author = {K{\"a}mper, Klaus-Peter and Picard, Antoni and Brill, Manfred and Cassel, Detlev and Jentsch, Andreas and Merten, Sabine and Rollwa, Markus}, title = {The Virtual Clean Room - a new tool in teaching MST process technologies}, year = {2003}, abstract = {The Virtual Clean Room - a new tool in teaching MST process technologies University education in high-technology fields like MST is not complete without intensive laboratory sessions. Students cannot fully grasp the complexity and the special problems related to the manufacturing of microsystems without a thorough hands-on experience in a MST clean room.}, subject = {Virtuelle Maschine}, language = {en} }