Refine
Year of publication
Document Type
- Conference Proceeding (131) (remove)
Conference Type
- Konferenz-Abstract (131) (remove)
Language
- English (131) (remove)
Has Fulltext
- no (131) (remove)
Is part of the Bibliography
- yes (131)
Keywords
- RoboCup (13)
- Biomechanik (9)
- Heart rhythm model (5)
- Modeling and simulation (5)
- injury (5)
- running (4)
- CST (3)
- HF-Ablation (3)
- Herzkrankheit (3)
- Katheter (3)
Institute
- Fakultät Elektrotechnik und Informationstechnik (E+I) (bis 03/2019) (60)
- Fakultät Maschinenbau und Verfahrenstechnik (M+V) (43)
- Fakultät Elektrotechnik, Medizintechnik und Informatik (EMI) (ab 04/2019) (17)
- IBMS - Institute for Advanced Biomechanics and Motion Studies (ab 16.11.2022) (10)
- INES - Institut für nachhaltige Energiesysteme (10)
- POIM - Peter Osypka Institute of Medical Engineering (7)
- Fakultät Wirtschaft (W) (4)
- Fakultät Medien (M) (ab 22.04.2021) (1)
- Fakultät Medien und Informationswesen (M+I) (bis 21.04.2021) (1)
- IMLA - Institute for Machine Learning and Analytics (1)
Open Access
- Open Access (82)
- Closed Access (37)
- Bronze (31)
- Closed (9)
- Diamond (3)
In bimodal cochlear implant (CI) / hearing aid (HA) users a constant interaural time delay in the order of several milliseconds occurs due to differences in signal processing of the devices. For MED-EL CI systems in combination with different HA types, we have quantified the respective device delay mismatch (Zirn et al. 2015). In the current study, we investigate the effect of the device delay mismatch in simulated and actual bimodal listeners on sound localization accuracy.
To deal with the device delay mismatch in actual bimodal listeners we delayed the CI stimulation according to the measured HA processing delay and two other values. With all delay values highly significant improvements of the rms error in the localization task were observed compared to the test without the delay. The results help to narrow down the optimal patient-specific delay value.
BiCI users’ sensitivity to interaural phase differences for single- and multi-channel stimulation
(2016)
Biological in situ methanation: Gassing concept and feeding strategy for enhanced performance
(2017)
The expansion of fluctuating renewable electricity production from wind and solar energy requires huge storage capacities. Power-to-gas (PtG) can contribute to tackle that issue via a two-step process, the electrolytic production of hydrogen and a subsequent methanation step (with additional CO2). The resulting fully grid compatible methane, also known as synthetic natural gas (SNG), can be both stored and transported in the vast existing natural gas infrastructure.
To overcome current major drawbacks of PtG, the relatively low efficiency and the high costs, we developed an improved method for the methanation step. In our approach we use a further development of the biological in situ methanation of hydrogen in biogas plants. Because this strategy uses directly internal residual CO2 from the biogas process in the biogas plant, you neither need additional external CO2 nor special reactors. Thus, PtG is combined with the production of an upgraded highly methane rich raw biogas.
However, the low solubility of hydrogen in aqueous solutions and the exploitation of the maximum biological production rates are still an engineering challenge for high performance biological in situ methanation.
In our experiments a setup with membrane gassing turned out to be most promising to ensure a sufficient gas liquid mass transfer of the hydrogen. The monitoring of hydrogenotrophic and aceticlastic archaea showed some adaption of these microbial subgroups to the hydrogen feed.
In order to achieve high methane concentrations of more than 90 % in the raw biogas a CO2-controlled hydrogen feed flow rate is suggested. For methane concentrations lower than 90 % simple current controlled hydrogen supply can be applied.
Cell lifetime diagnostics and system be-havior of stationary LFP/graphite lithium-ion batteries
(2018)