TY - JOUR A1 - Iding, Hans A1 - Dünnwald, Thomas A1 - Greiner, Lasse A1 - Liese, Andreas A1 - Müller, Michael A1 - Siegert, Petra A1 - Grötzinger, Joachim A1 - Demir, Ayhan S. A1 - Pohl, Martina T1 - Benzoylformate Decarboxylase from Pseudomonas putida as Stable Catalyst for the Synthesis of Chiral 2-Hydroxy Ketones JF - Chemistry - a European journal Y1 - 2000 SN - 1521-3765 (E-Journal); 0947-6539 (Print) VL - Vol. 6 IS - Iss. 8 SP - 1483 EP - 1495 ER - TY - JOUR A1 - Darmo, J. A1 - Schäffer, F. A1 - Förster, Arnold A1 - Kordos, P. T1 - Beryllium doped low-temperature-grown MBE GaAs: material for photomixing in the THz frequency range JF - ASDAM 2000 : conference proceedings / edited by Jozef Osvald ... [et al.] Y1 - 2000 SN - 0780359399 N1 - International Conference on Advanced Semiconductor Devices and Microsystems ; (3rd : ; 2000 : ; Smolenice, Slovakia) SP - 147 EP - 150 PB - IEEE CY - Piscataway, NJ ER - TY - JOUR A1 - Mayer, Claudia T1 - Between Resistance and Affirmation: Christa Wolf and German Unification JF - Canadian review of comparative literature : CRCL = Revue canadienne de littérature comparée / Canadian Comparative Literature Association. 22 (1995), H. 3-4 Y1 - 1995 SN - 0319-051X SP - 813 EP - 835 ER - TY - JOUR A1 - Mayer, Claudia T1 - Between Trans- and Interdisciplinarity. »Germanistik« and the Dialectic of Inclusion and Exclusion of the Other(s) JF - Language and literature today : proceedings of the XIXth triennal congress of the International Federation for Modern Languages and Literatures ; Brasília 22 - 30 August 1993. General ed. Neide de Faria. Y1 - 1993 SN - 85-230-0405-x N1 - Band 2 SP - 958 EP - 966 PB - Univ. CY - Brasilia ER - TY - JOUR A1 - Ziemons, Karl A1 - Bruyndonckx, P. A1 - Perez, J. M. A1 - Pietrzyk, U. A1 - Rato, P. A1 - Tavernier, S. T1 - Beyond ClearPET: Next Aims JF - 5th IEEE International Symposium on Biomedical Imaging: From Nano to Macro Symposium Proceedings ISBI 2008 N2 - The CRYSTAL CLEAR collaboration, in short CCC, is a consortium of 12 academic institutions, mainly from Europe, joining efforts in the area of developing instrumentation for nuclear medicine and medical imaging. In the framework of the CCC a high performance small animal PET system, called ClearPET, was developed by using new technologies in electronics and crystals in a phoswich arrangement combining two types of lutetium- based scintillator materials: LSO:Ce and LuYAP:Ce. Our next aim will be the development of hybrid image systems. Hybrid MR-PET imaging has many unique advantages for brain research. This has sparked a new research line within CCC for the development of novel MR-PET compatible technologies. MRI is not as sensitive as PET but PET has poorer spatial resolution than MRI. Two major advantages of PET are sensitivity and its ability to acquire metabolic information. To assess these innovations, the development of a 9.4T hybrid animal MR-PET scanner is proposed based on an existing 9.4T MR scanner that will be adapted to enable simultaneous acquisition of MR and PET data using cutting- edge technology for both MR and PET. Y1 - 2008 SN - 978-1-4244-2003-2 SP - 1421 EP - 1424 ER - TY - JOUR A1 - Damrau, Karin T1 - Beyond Solidity - Inventions, Spaces and Concepts for the Elements of Air and Water JF - Architectural design : AD. 69 (1999), H. 3-4 Y1 - 1999 SN - 0003-8504 SP - 22 EP - 33 ER - TY - JOUR A1 - Blome, Hans-Joachim A1 - Priester, W. T1 - Big Bounce in the very early Universe JF - Astronomy and Astrophysics. 250 (1991), H. 1 Y1 - 1991 SN - 0004-6361 SP - 43 EP - 49 ER - TY - JOUR A1 - Mansurov, Z. A1 - Digel, Ilya A1 - Biisenbaev, M. A1 - Savistkaya, I. A1 - Kistaubaeva, A. A1 - Akimbekov, N. A1 - Zhubanova, A. T1 - Bio-composite material on the basis of carbonized rice husk in biomedicine and environmental applications JF - Eurasian Chemico-Technological Journal Y1 - 2012 U6 - http://dx.doi.org/10.18321/ectj105 SN - 2522-4867 VL - 14 IS - 2 SP - 115 EP - 131 PB - Institute of Combustion Problems CY - Almaty ER - TY - JOUR A1 - Uysal, Karya A1 - Creutz, Till A1 - Firat, Ipek Seda A1 - Artmann, Gerhard A1 - Teusch, Nicole A1 - Temiz Artmann, Aysegül T1 - Bio-functionalized ultra-thin, large-area and waterproof silicone membranes for biomechanical cellular loading and compliance experiments JF - Polymers N2 - Biocompatibility, flexibility and durability make polydimethylsiloxane (PDMS) membranes top candidates in biomedical applications. CellDrum technology uses large area, <10 µm thin membranes as mechanical stress sensors of thin cell layers. For this to be successful, the properties (thickness, temperature, dust, wrinkles, etc.) must be precisely controlled. The following parameters of membrane fabrication by means of the Floating-on-Water (FoW) method were investigated: (1) PDMS volume, (2) ambient temperature, (3) membrane deflection and (4) membrane mechanical compliance. Significant differences were found between all PDMS volumes and thicknesses tested (p < 0.01). They also differed from the calculated values. At room temperatures between 22 and 26 °C, significant differences in average thickness values were found, as well as a continuous decrease in thicknesses within a 4 °C temperature elevation. No correlation was found between the membrane thickness groups (between 3–4 µm) in terms of deflection and compliance. We successfully present a fabrication method for thin bio-functionalized membranes in conjunction with a four-step quality management system. The results highlight the importance of tight regulation of production parameters through quality control. The use of membranes described here could also become the basis for material testing on thin, viscous layers such as polymers, dyes and adhesives, which goes far beyond biological applications. Y1 - 2022 SN - 2073-4360 VL - 14 IS - 11 SP - 2213 PB - MDPI CY - Basel ER - TY - JOUR A1 - Thomessen, Karolin A1 - Thoma, Andreas A1 - Braun, Carsten T1 - Bio-inspired altitude changing extension to the 3DVFH* local obstacle avoidance algorithm JF - CEAS Aeronautical Journal N2 - Obstacle avoidance is critical for unmanned aerial vehicles (UAVs) operating autonomously. Obstacle avoidance algorithms either rely on global environment data or local sensor data. Local path planners react to unforeseen objects and plan purely on local sensor information. Similarly, animals need to find feasible paths based on local information about their surroundings. Therefore, their behavior is a valuable source of inspiration for path planning. Bumblebees tend to fly vertically over far-away obstacles and horizontally around close ones, implying two zones for different flight strategies depending on the distance to obstacles. This work enhances the local path planner 3DVFH* with this bio-inspired strategy. The algorithm alters the goal-driven function of the 3DVFH* to climb-preferring if obstacles are far away. Prior experiments with bumblebees led to two definitions of flight zone limits depending on the distance to obstacles, leading to two algorithm variants. Both variants reduce the probability of not reaching the goal of a 3DVFH* implementation in Matlab/Simulink. The best variant, 3DVFH*b-b, reduces this probability from 70.7 to 18.6% in city-like worlds using a strong vertical evasion strategy. Energy consumption is higher, and flight paths are longer compared to the algorithm version with pronounced horizontal evasion tendency. A parameter study analyzes the effect of different weighting factors in the cost function. The best parameter combination shows a failure probability of 6.9% in city-like worlds and reduces energy consumption by 28%. Our findings demonstrate the potential of bio-inspired approaches for improving the performance of local path planning algorithms for UAV. KW - UAV KW - Obstacle avoidance KW - Autonomy KW - Local path planning Y1 - 2023 U6 - http://dx.doi.org/10.1007/s13272-023-00691-w SN - 1869-5590 (Online) SN - 1869-5582 (Print) N1 - Corresponding author: Karolin Thomessen PB - Springer CY - Wien ER -