TY  - JOUR
A1  - Heuermann, Holger
A1  - Schiek, Burkhard
T1  - Scattering Parameter Measurements of Microstrip Devices using the Double-LNN Calibration Technique
JF  - Conference proceedings : [Palais des Festivals et des Congrès Cannes, France, 5 - 8 September 1994]
Y1  - 1994
SN  - 0-9518032-5-5
N1  - European Microwave Conference <24, 1994, Cannes>
PB  - Nexus Business Communications
CY  - Swanley
ER  - 
TY  - JOUR
A1  - Schäfer, Horst
A1  - Shanjia, Xu
A1  - Xinzhang, Wu
A1  - Boege, P.
T1  - Scattering Characteristics of 3-D Discontinuity Consisting of Semiconductor Sample Filled in Waveguide with Gaps
JF  - International Journal of Infrared and Millimeter Waves. 14 (1993), H. 10
Y1  - 1993
SN  - 0195-9271
SP  - 2155
EP  - 2190
ER  - 
TY  - JOUR
A1  - Müller-Veggian, Mattea
A1  - Garbe, S.
A1  - Nour, Y.
A1  - Wolf, K.
T1  - Scattered dose determination using the semiconductor diodes for a mask based whole brain radiotherapy (WBRT) with high-energy photons
JF  - Biomedizinische Technik. 50 (2005), H. 2
Y1  - 2005
SN  - 0932-4666
SP  - 1069
EP  - 1070
ER  - 
TY  - JOUR
A1  - Hillen, Walter
T1  - Scale braking in inclusive charged particle production by e--e+ annihilation. TASSO Collaboration
JF  - Physics Letters B. 114 (1982), H. 1
Y1  - 1982
SN  - 0370-2693
SP  - 65
EP  - 70
ER  - 
TY  - JOUR
A1  - Hengsbach, Jan-Niklas
A1  - Engel, Mareike
A1  - Cwienczek, Marcel
A1  - Stiefelmaier, Judith
A1  - Tippkötter, Nils
A1  - Ulber, Roland
T1  - Scalable unseparated bioelectrochemical reactors by using a carbon fiber brush as stirrer and working electrode
JF  - ChemElectroChem
N2  - The concept of energy conversion into platform chemicals using bioelectrochemical systems (BES) has gained increasing attention in recent years, as the technology simultaneously provides an opportunity for sustainable chemical production and tackles the challenge of Power-to-X technologies. There are many approaches to realize the industrial scale of BES. One concept is to equip standard bioreactors with static electrodes. However, large installations resulted in a negative influence on various reactor parameters. In this study, we present a new single-chamber BES based on a stirred tank reactor in which the stirrer was replaced by a carbon fiber brush, performing the functions of the working electrode and the stirrer. The reactor is characterized in abiotic studies and electro-fermentations with Clostridium acetobutylicum. Compared to standard reactors an increase in butanol production of 20.14±3.66 % shows that the new BES can be efficiently used for bioelectrochemical processes.
Y1  - 2023
U6  - https://doi.org/10.1002/celc.202300440
SN  - 2196-0216
VL  - 10
IS  - 21
PB  - Wiley-VCH
CY  - Weinheim
ER  - 
TY  - JOUR
A1  - Rittweger, Jörn
A1  - Albracht, Kirsten
A1  - Flück, Martin
A1  - Ruoss, Severin
A1  - Brocca, Lorenza
A1  - Longa, Emanuela
A1  - Moriggi, Manuela
A1  - Seynnes, Olivier
A1  - Di Giulio, Irene
A1  - Tenori, Leonardo
A1  - Vignoli, Alessia
A1  - Capri, Miriam
A1  - Gelfi, Cecilia
A1  - Luchinat, Claudio
A1  - Franceschi, Claudio
A1  - Bottinelli, Roberto
A1  - Cerretelli, Paolo
A1  - Narici, Marco
T1  - Sarcolab pilot study into skeletal muscle’s adaptation to longterm spaceflight
JF  - npj Microgravity
Y1  - 2018
U6  - https://doi.org/10.1038/s41526-018-0052-1
SN  - 2373-8065
VL  - 4
IS  - 1
SP  - 1
EP  - 9
PB  - Nature Portfolio
ER  - 
TY  - JOUR
A1  - Fiedler, Thomas M.
A1  - Ladd, Mark E.
A1  - Bitz, Andreas
T1  - SAR Simulations & Safety
JF  - NeuroImage
Y1  - 2017
U6  - https://doi.org/10.1016/j.neuroimage.2017.03.035
SN  - 1053-8119
IS  - Epub ahead of print
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Frotscher, Ralf
A1  - Muanghong, Danita
A1  - Dursun, Gözde
A1  - Goßmann, Matthias
A1  - Temiz Artmann, Aysegül
A1  - Staat, Manfred
T1  - Sample-specific adaption of an improved electro-mechanical model of in vitro cardiac tissue
JF  - Journal of Biomechanics
N2  - We present an electromechanically coupled computational model for the investigation of a thin cardiac tissue construct consisting of human-induced pluripotent stem cell-derived atrial, ventricular and sinoatrial cardiomyocytes. The mechanical and electrophysiological parts of the finite element model, as well as their coupling are explained in detail. The model is implemented in the open source finite element code Code_Aster and is employed for the simulation of a thin circular membrane deflected by a monolayer of autonomously beating, circular, thin cardiac tissue. Two cardio-active drugs, S-Bay K8644 and veratridine, are applied in experiments and simulations and are investigated with respect to their chronotropic effects on the tissue. These results demonstrate the potential of coupled micro- and macroscopic electromechanical models of cardiac tissue to be adapted to experimental results at the cellular level. Further model improvements are discussed taking into account experimentally measurable quantities that can easily be extracted from the obtained experimental results. The goal is to estimate the potential to adapt the presented model to sample specific cell cultures.
KW  - hiPS cardiomyocytes
KW  - Homogenization
KW  - Hodgkin–Huxley models
KW  - Frequency adaption
KW  - Electromechanical modeling
KW  - Drug simulation
KW  - Computational biomechanics
KW  - Cardiac tissue
Y1  - 2016
U6  - https://doi.org/10.1016/j.jbiomech.2016.01.039
SN  - 0021-9290 (Print)
SN  - 1873-2380 (Online)
VL  - 49
IS  - 12
SP  - 2428
EP  - 2435
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Fiedler, Thomas M.
A1  - Ladd, Mark E.
A1  - Clemens, Markus
A1  - Bitz, Andreas
T1  - Safety of subjects during radiofrequency exposure in ultra-high-field magnetic resonance imaging
JF  - IEEE Letters on Electromagnetic Compatibility Practice and Applications
N2  - Magnetic resonance imaging (MRI) is one of the most important medical imaging techniques. Since the introduction of MRI in the mid-1980s, there has been a continuous trend toward higher static magnetic fields to obtain i.a. a higher signal-to-noise ratio. The step toward ultra-high-field (UHF) MRI at 7 Tesla and higher, however, creates several challenges regarding the homogeneity of the spin excitation RF transmit field and the RF exposure of the subject. In UHF MRI systems, the wavelength of the RF field is in the range of the diameter of the human body, which can result in inhomogeneous spin excitation and local SAR hotspots. To optimize the homogeneity in a region of interest, UHF MRI systems use parallel transmit systems with multiple transmit antennas and time-dependent modulation of the RF signal in the individual transmit channels. Furthermore, SAR increases with increasing field strength, while the SAR limits remain unchanged. Two different approaches to generate the RF transmit field in UHF systems using antenna arrays close and remote to the body are investigated in this letter. Achievable imaging performance is evaluated compared to typical clinical RF transmit systems at lower field strength. The evaluation has been performed under consideration of RF exposure based on local SAR and tissue temperature. Furthermore, results for thermal dose as an alternative RF exposure metric are presented.
Y1  - 2020
SN  - 2637-6423
U6  - https://doi.org/10.1109/LEMCPA.2020.3029747
VL  - 2
IS  - 3
SP  - 1
EP  - 8
PB  - IEEE
CY  - New York, NY
ER  - 
TY  - JOUR
A1  - Hartung, Frank
A1  - Baldo, N.
A1  - Horn, U.
A1  - Kampmann, M.
T1  - RTCP feedback based transmission rate control for 3G wireless multimedia streaming / Baldo, N. ; Horn, U. ; Kampmann, M. ; Hartung, F. ;
JF  - 15th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 2004. PIMRC 2004.   Date:5-8 Sept. 2004 ; Vol. 3
Y1  - 2004
N1  - http://dx.doi.org/10.1109/PIMRC.2004.1368313
SP  - 1817
EP  - 1821
ER  -