@article{SchoeningSimonisKringsetal.2002, author = {Sch{\"o}ning, Michael Josef and Simonis, A. and Krings, T. and L{\"u}th, H. and Wang, J.}, title = {Evaluation of a chip-based thin-film / thick-film sensor hybrid for (bio-)chemical analysis}, series = {Electroanalysis}, volume = {14}, journal = {Electroanalysis}, number = {13}, issn = {1040-0397}, pages = {955 -- 958}, year = {2002}, language = {en} } @article{SchoeningSimonisRugeetal.2002, author = {Sch{\"o}ning, Michael Josef and Simonis, Anette and Ruge, Christian and Ecken, Holger and M{\"u}ller-Veggian, Mattea and L{\"u}th, Hans}, title = {A (bio-)chemical Field-effect Sensor with Macroporous Si as Substrate Material and a SiO₂ / LPCVD-Si₃N₄ Double Layer as pH Transducer}, series = {Sensors. 2 (2002), H. 1}, journal = {Sensors. 2 (2002), H. 1}, isbn = {1424-8220}, doi = {10.3390/s20100011}, pages = {11 -- 22}, year = {2002}, abstract = {Macroporous silicon has been etched from n-type Si, using a vertical etching cell where no rear side contact on the silicon wafer is necessary. The resulting macropores have been characterised by means of Scanning Electron Microscopy (SEM). After etching, SiO₂ was thermally grown on the top of the porous silicon as an insulating layer and Si₃N₄ was deposited by means of Low Pressure Chemical Vapour Deposition (LPCVD) as transducer material to fabricate a capacitive pH sensor. In order to prepare porous biosensors, the enzyme penicillinase has been additionally immobilised inside the porous structure. Electrochemical measurements of the pH sensor and the biosensor with an Electrolyte/Insulator/Semiconductor (EIS) structure have been performed in the Capacitance/Voltage (C/V) and Constant capacitance (ConCap) mode.}, language = {en} } @article{SchoeningWangKrauseetal.2002, author = {Sch{\"o}ning, Michael Josef and Wang, Josepf and Krause, Robin and Block, Kirstin and Musameh, Mustafa and Mulchandani, Ashok and Mulchandani, Priti and Chen, Wilfred}, title = {Dual amperometric-potentiometric biosensor detection system for monitoring organophosphorus neurotoxins}, series = {Analyica Chimica Acta. 469 (2002), H. 2}, journal = {Analyica Chimica Acta. 469 (2002), H. 2}, isbn = {0378-4304}, pages = {197 -- 203}, year = {2002}, language = {en} } @article{SelmerNetzPohletal.2002, author = {Selmer, Thorsten and Netz, Daili Jacqueline Aguilar and Pohl, Regula and Beck-Sickinger, Annette G.}, title = {Biochemical characterisation and genetic analysis of aureocin A53, a new, atypical bacteriocin from Staphylococcus aureus / Netz, Daili Jacqueline Aguilar ; Pohl, Regula ; Beck-Sickinger, Annette G. ; Selmer, Thorsten ; Pierik, Antonio J. ; Carmo de Frei}, series = {Journal of Molecular Biology. 319 (2002), H. 3}, journal = {Journal of Molecular Biology. 319 (2002), H. 3}, isbn = {0022-2836}, pages = {745 -- 756}, year = {2002}, language = {en} } @article{SelmerWillanzheimerHetzel2002, author = {Selmer, Thorsten and Willanzheimer, Angela and Hetzel, Marc}, title = {Propionate CoA-transferase from Clostridium propionicum. Cloning of the gene and identification of glutamate 324 at the active site}, series = {European Journal of Biochemistry. 269 (2002), H. 1}, journal = {European Journal of Biochemistry. 269 (2002), H. 1}, isbn = {0014-2956}, pages = {372 -- 380}, year = {2002}, language = {en} } @article{SponagelBaroudSteffenetal.2002, author = {Sponagel, Stefan and Baroud, G. and Steffen, T. and Wu, J.}, title = {Parameter identification for cement infiltration of osteoporotic bone}, series = {Poromechanics II : Proceedings of the Second Biot Conference on Poromechanics Grenoble, France 26 - 28 August 2002 / ed. by J.-L. Auriault ...}, journal = {Poromechanics II : Proceedings of the Second Biot Conference on Poromechanics Grenoble, France 26 - 28 August 2002 / ed. by J.-L. Auriault ...}, publisher = {Balkema}, address = {Lisse [u.a.]}, isbn = {90-5809-394-8}, pages = {55 -- 58}, year = {2002}, language = {en} } @article{Staat2002, author = {Staat, Manfred}, title = {Some Achievements of the European Project LISA for FEM Based Limit and Shakedown Analysis}, series = {Computational mechanics : developments and applications, 2002 : presented at the 2002 ASME Pressure Vessels and Piping Conference, Vancouver, British Columbia, Canada, August 5 - 9. / Badie, N. [ed]}, journal = {Computational mechanics : developments and applications, 2002 : presented at the 2002 ASME Pressure Vessels and Piping Conference, Vancouver, British Columbia, Canada, August 5 - 9. / Badie, N. [ed]}, publisher = {American Society of Mechanical Engineers}, address = {New York}, isbn = {0791846520}, pages = {177 -- 185}, year = {2002}, language = {en} } @article{StaatHeitzer2002, author = {Staat, Manfred and Heitzer, M.}, title = {Limit and Shakedown Analysis with Uncertain Data}, series = {Stochastic optimization techniques : numerical methods and technical applications / Marti, K. [ed]}, journal = {Stochastic optimization techniques : numerical methods and technical applications / Marti, K. [ed]}, publisher = {Springer}, address = {Heidelberg}, isbn = {3-540-42889-5}, pages = {241 -- 254}, year = {2002}, language = {en} } @inproceedings{StaatHeitzer2002, author = {Staat, Manfred and Heitzer, Michael}, title = {The restricted influence of kinematic hardening on shakedown loads}, year = {2002}, abstract = {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.}, subject = {Biomedizinische Technik}, language = {en} } @article{StreunBrandenburgLarueetal.2002, author = {Streun, M. and Brandenburg, G. and Larue, H. and Zimmermann, E. and Ziemons, Karl and Halling, H.}, title = {A PET system with free running ADCs}, series = {Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment}, volume = {486}, journal = {Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment}, number = {1-2}, issn = {0168-9002}, pages = {18 -- 21}, year = {2002}, abstract = {A small PET system has been built up with two multichannel photomultipliers, which are attached to a matrix of 64 single LSO crystals each. The signal from each multiplier is being sampled continuously by a 12 bit ADC at a sampling frequency of 40 MHz. In case of a scintillation pulse a subsequent FPGA sends the corresponding set of samples together with the channel information and a time mark to the host computer. The data transfer is performed with a rate of 20 MB/s. On the host all necessary information is extracted from the data. The pulse energy is determined, coincident events are detected and multiple hits within one matrix can be identified. In order to achieve a narrow time window the pulse starting time is refined further than the resolution of the time mark (=25 ns) would allow. This is possible by interpolating between the pulse samples. First data obtained from this system will be presented. The system is part of developments for a much larger system and has been created to study the feasibility and performance of the technique and the hardware architecture.}, language = {en} }