Refine
Year of publication
- 2021 (136) (remove)
Institute
- Fachbereich Medizintechnik und Technomathematik (43)
- IfB - Institut für Bioengineering (31)
- Fachbereich Elektrotechnik und Informationstechnik (25)
- Fachbereich Luft- und Raumfahrttechnik (22)
- Fachbereich Energietechnik (15)
- INB - Institut für Nano- und Biotechnologien (10)
- ECSM European Center for Sustainable Mobility (8)
- Fachbereich Bauingenieurwesen (8)
- Fachbereich Chemie und Biotechnologie (8)
- Solar-Institut Jülich (8)
- Fachbereich Wirtschaftswissenschaften (6)
- MASKOR Institut für Mobile Autonome Systeme und Kognitive Robotik (6)
- Fachbereich Maschinenbau und Mechatronik (3)
- IMP - Institut für Mikrowellen- und Plasmatechnik (2)
- Nowum-Energy (2)
- ZHQ - Bereich Hochschuldidaktik und Evaluation (2)
- Arbeitsstelle fuer Hochschuldidaktik und Studienberatung (1)
- Digitalisierung in Studium & Lehre (1)
- Freshman Institute (1)
- IaAM - Institut für angewandte Automation und Mechatronik (1)
Has Fulltext
- no (136) (remove)
Language
- English (136) (remove)
Document Type
- Article (69)
- Conference Proceeding (48)
- Part of a Book (12)
- Book (2)
- Doctoral Thesis (2)
- Conference: Meeting Abstract (1)
- Other (1)
- Preprint (1)
Keywords
- Hydrogen (2)
- NOx emissions (2)
- Out-of-plane load (2)
- PCM (2)
- Principal component analysis (2)
- autonomous driving (2)
- building information modelling (2)
- capacitive field-effect sensor (2)
- constructive alignment (2)
- earthquakes (2)
- electro mobility (2)
- examination (2)
- harmonic radar (2)
- hydrogen (2)
- industrial facilities (2)
- installations (2)
- long-term retention (2)
- management (2)
- multimodal (2)
- piping (2)
- practical learning (2)
- robotic process automation (2)
- seismic loading (2)
- 3D object detection (1)
- 3D printing (1)
- 3D-printing (1)
- Adaptive Systems (1)
- AlterG (1)
- Augmented Reality (1)
- Authenticity (1)
- BIM (1)
- Bacillus sp (1)
- Biosolubilization (1)
- Bloom’s Taxonomy (1)
- Bootstrap (1)
- Boundary integral equations (1)
- CellDrum (1)
- Central receiver power plant (1)
- Coefficient of ocular rigidity (1)
- Competence Developing Games (1)
- Computational modeling (1)
- Concentrated systems (1)
- Concentrating solar power (1)
- Corneo-scleral shell (1)
- Cross-platform (1)
- DLR-ESTEC GOSSAMER roadmap for solar sailing (1)
- Deep learning (1)
- Deuterated solvents (1)
- Deuterium NMR (1)
- Differential tonometry (1)
- Drinfeld modules (1)
- EEG (1)
- ESATAN (1)
- Earthquake (1)
- Earthquake Engineering (1)
- Emissions (1)
- Empirical process (1)
- Enterprise Architecture (1)
- Error Recovery (1)
- Evaluation (1)
- Eyeball (1)
- Flame residence time (1)
- Flame temperature (1)
- Frame structure (1)
- Frequency Doubler (1)
- Frequency mixing magnetic detection (1)
- Freshmen (1)
- Fresnel power plant (1)
- Fuel-flexibility (1)
- Functional Delta Method (1)
- GEO (1)
- GOSSAMER-1 (1)
- GPU (1)
- Game-based learning (1)
- Gamification (1)
- Gas turbine (1)
- Gas turbine combustion (1)
- Glaucoma (1)
- HVAC (1)
- Hadamard differentiability (1)
- Harmonic Radar (1)
- Helmholtz equation (1)
- Heparin (1)
- Heuristic algorithms (1)
- Hilbert Room (1)
- Hyperdifferentials (1)
- IR (1)
- IR spectroscopy (1)
- IT security education (1)
- ITS (1)
- Impedance Spectroscopy (1)
- Implementation Case (1)
- In- plane damage (1)
- Infused Thermal Solutions (1)
- Interior Neumann eigenvalues (1)
- Keyword analysis (1)
- LEO (1)
- LPS (1)
- Langevin theory (1)
- LiDAR (1)
- Lightning protection system (1)
- Linear discriminant analysis (1)
- MUT measurement; scanner (1)
- Machine learning (1)
- Magnetic nanoparticles (1)
- Manufacturer (1)
- Masonry infill (1)
- Micromagnetic simulation (1)
- Micromix (1)
- Mixed-integer nonlinear programming (1)
- Mobile web (1)
- Modelica (1)
- Multi-storey (1)
- Muscle Fascicle (1)
- Muscle Force (1)
- NOx (1)
- Natural language processing (1)
- Nonequilibrium dynamics (1)
- Numerics (1)
- Ocular blood flow (1)
- Operators (1)
- Optimization (1)
- Out-of-plane failure (1)
- Out-of-plane strength (1)
- PWA (1)
- Paired sample (1)
- Piping (1)
- Postulates (1)
- Potential theory (1)
- Powertrain (1)
- Pressure-volume relationship (1)
- Process model (1)
- Progressive Web App (1)
- Quantenmechanik (1)
- RVA (1)
- Radar (1)
- Rescue System (1)
- Resilience (1)
- Robotic Process Automation (1)
- Robotic process automation (1)
- SFCW (1)
- Schrödingers cat (1)
- Seismic loading (1)
- Septic cardiomyopathy (1)
- Sharing mobility (1)
- Simulation (1)
- Sleep EEG (1)
- Small spacecraft (1)
- Smart Building Engineering (1)
- Soft independent modeling of class analogy (1)
- Solar sail (1)
- Standardization (1)
- Stiffness (1)
- TMV adsorption (1)
- Tag (1)
- Tank (1)
- Ta₂O₅ gate (1)
- Tendon Rupture (1)
- Three-dimensional displays (1)
- Transcendence (1)
- Transponder (1)
- Unreinforced masonry walls (1)
- VOP compression (1)
- Validation (1)
- Vascular response (1)
- Visual field asymmetry (1)
- Water distribution system (1)
- actin cytoskeleton (1)
- actuator-sensor system (1)
- additive manufactureing (1)
- applications (1)
- artificial intelligence (1)
- biopotential electrodes (1)
- body imaging at UHF MRI (1)
- building energy modelling (1)
- building energy simulation (1)
- business culture (1)
- business models (1)
- business process automation (1)
- capacitive EIS sensor (1)
- cardiomyocyte biomechanics (1)
- change (1)
- colorization (1)
- combustor (1)
- combustor development (1)
- commercial offthe- shelf solutions (1)
- construction (1)
- control gate (1)
- crop yield (1)
- culpability (1)
- cyber physical production system (1)
- cyber-physical production systems (1)
- detection of charged macromolecules (1)
- digital factory (1)
- digital shadow (1)
- digitalization (1)
- dissemination (1)
- do-it-yourself (1)
- down-conductor (1)
- drop jump (1)
- early warning and response system (1)
- education (1)
- electrically driven compressors (1)
- embedded hardware (1)
- emote practical training (1)
- energy transition (1)
- engine demonstration (1)
- enzyme kinetics (1)
- equivalent circuit (1)
- event-based simulation (1)
- field-effect sensor (1)
- food production (1)
- fragility curves (1)
- frequency mixing magnetic detection (1)
- fuel cell (1)
- fuels (1)
- gait (1)
- gas turbine (1)
- genetic algorithm (1)
- glass (1)
- global optimization (1)
- gold nanoparticles (1)
- harmonic radar tags (1)
- heat demand (1)
- heat transfer coefficient (1)
- humic acid (1)
- hyper-gravity (1)
- hypo-gravity (1)
- industrial agents (1)
- industrial gas turbine (1)
- information systems (1)
- integrated transmit coil arrays (1)
- integration SHM in BIM (1)
- interconnected sensor systems (1)
- internal combustion engine (1)
- internet of production (1)
- intraclass correlation coefficient (1)
- laser based powder fusion (1)
- latent heat (1)
- lattice (1)
- liability (1)
- light-addressable electrode (1)
- light-addressable potentiometric sensor (1)
- lignite (1)
- lockdown conditions (1)
- locomotion (1)
- low-rank coal (1)
- magnetic nanoparticles (1)
- masonry structures (1)
- metal façade (1)
- microfluidics (1)
- microwave measurements (1)
- mobility behaviour (1)
- model-predictive control (1)
- motivation (1)
- multi-agent systems (1)
- multianalyte detection (1)
- multiplex detection (1)
- muscle fascicle behavior (1)
- muscle mechanics (1)
- nonlinear VNA measurements (1)
- nonlinear radar (1)
- on-chip integrated addressable EISCAP sensors (1)
- open educational resources (1)
- parabolic flight (1)
- passive thermal control (1)
- plant virus detection (1)
- polystyrene sulfonate (1)
- prefabrication (1)
- qNMR (1)
- rehabilitation (1)
- remote teamwork (1)
- renewable energies (1)
- research framework (1)
- roleplay (1)
- running (1)
- sarcomere operating length (1)
- seismic risk (1)
- seismic structural damage detection via SHM (1)
- seismic vulnerability (1)
- sensor networks (1)
- sensors (1)
- series elastic element behavior (1)
- shoulder (1)
- small and medium scaled companies (1)
- smart building engineering (1)
- smart engineering (1)
- software evaluation (1)
- software selection (1)
- soil amendment (1)
- soil health (1)
- soil remediation (1)
- sprint start (1)
- standard error of measurement (1)
- star tracker (1)
- steel columns (1)
- stochastic optimization (1)
- storage dispatch (1)
- storage optimisation (1)
- stretch reflex (1)
- subroutine (1)
- sustainability (1)
- t-modules (1)
- technology (1)
- test-retest reliability (1)
- thermal storage (1)
- thermo-physical (1)
- tobacco mosaic virus (TMV) (1)
- touch voltage (1)
- transponder (1)
- ultrasonography (1)
- ultrasound imaging (1)
- unloading (1)
- urban farming (1)
- user & usage (1)
- virtual reality (1)
- walking (1)
This paper describes the concept of an innovative, interdisciplinary, user-oriented earthquake warning and rapid response system coupled with a structural health monitoring system (SHM), capable to detect structural damages in real time. The novel system is based on interconnected decentralized seismic and structural health monitoring sensors. It is developed and will be exemplarily applied on critical infrastructures in Lower Rhine Region, in particular on a road bridge and within a chemical industrial facility. A communication network is responsible to exchange information between sensors and forward warnings and status reports about infrastructures’health condition to the concerned recipients (e.g., facility operators, local authorities). Safety measures such as emergency shutdowns are activated to mitigate structural damages and damage propagation. Local monitoring systems of the infrastructures are integrated in BIM models. The visualization of sensor data and the graphic representation of the detected damages provide spatial content to sensors data and serve as a useful and effective tool for the decision-making processes after an earthquake in the region under consideration.
Conventional EEG devices cannot be used in everyday life and hence, past decade research has been focused on Ear-EEG for mobile, at-home monitoring for various applications ranging from emotion detection to sleep monitoring. As the area available for electrode contact in the ear is limited, the electrode size and location play a vital role for an Ear-EEG system. In this investigation, we present a quantitative study of ear-electrodes with two electrode sizes at different locations in a wet and dry configuration. Electrode impedance scales inversely with size and ranges from 450 kΩ to 1.29 MΩ for dry and from 22 kΩ to 42 kΩ for wet contact at 10 Hz. For any size, the location in the ear canal with the lowest impedance is ELE (Left Ear Superior), presumably due to increased contact pressure caused by the outer-ear anatomy. The results can be used to optimize signal pickup and SNR for specific applications. We demonstrate this by recording sleep spindles during sleep onset with high quality (5.27 μVrms).
Purpose Vascular risk factors and ocular perfusion are heatedly discussed in the pathogenesis of glaucoma. The retinal vessel analyzer (RVA, IMEDOS Systems, Germany) allows noninvasive measurement of retinal vessel regulation. Significant differences especially in the veins between healthy subjects and patients suffering from glaucoma were previously reported. In this pilot-study we investigated if localized vascular regulation is altered in glaucoma patients with altitudinal visual field defect asymmetry. Methods 15 eyes of 12 glaucoma patients with advanced altitudinal visual field defect asymmetry were included. The mean defect was calculated for each hemisphere separately (-20.99 ± 10.49 pro- found hemispheric visual field defect vs -7.36 ± 3.97 dB less profound hemisphere). After pupil dilation, RVA measurements of retinal arteries and veins were conducted using the standard protocol. The superior and inferior retinal vessel reactivity were measured consecutively in each eye. Results Significant differences were recorded in venous vessel constriction after flicker light stimulation and overall amplitude of the reaction (p \ 0.04 and p \ 0.02 respectively) in-between the hemispheres spheres. Vessel reaction was higher in the hemisphere corresponding to the more advanced visual field defect. Arterial diameters reacted similarly, failing to reach statistical significance. Conclusion Localized retinal vessel regulation is significantly altered in glaucoma patients with asymmetri altitudinal visual field defects. Veins supplying the hemisphere concordant to a less profound visual field defect show diminished diameter changes. Vascular dysregulation might be particularly important in early glaucoma stages prior to a significant visual field defect.
The worldwide Corona pandemic has severely restricted student projects in the higher semesters of engineering courses. In order not to delay the graduation, a new concept had to be developed for projects under lockdown conditions. Therefore, unused rooms at the university should be digitally recorded in order to develop a new usage concept as laboratory rooms. An inventory of the actual state of the rooms was done first by taking photos and listing up all flaws and peculiarities. After that, a digital site measuring was done with a 360° laser scanner and these recorded scans were linked to a coherent point cloud and transferred to a software for planning technical building services and supporting Building Information Modelling (BIM). In order to better illustrate the difference between the actual and target state, two virtual reality models were created for realistic demonstration. During the project, the students had to go through the entire digital planning phases. Technical specifications had to be complied with, as well as documentation, time planning and cost estimate. This project turned out to be an excellent alternative to on-site practical training under lockdown conditions and increased the students’ motivation to deal with complex technical questions.
Development of open educational resources for renewable energy and the energy transition process
(2021)
The dissemination of knowledge about renewable energies is understood as a social task with the highest topicality. The transfer of teaching content on renewable energies into digital open educational resources offers the opportunity to significantly accelerate the implementation of the energy transition. Thus, in the here presented project six German universities create open educational resources for the energy transition. These materials are available to the public on the internet under a free license. So far there has been no publicly accessible, editable media that cover entire learning units about renewable energies extensively and in high technical quality. Thus, in this project, the content that remains up-to-date for a longer period is appropriately prepared in terms of media didactics. The materials enable lecturers to provide students with in-depth training about technologies for the energy transition. In a particular way, the created material is also suitable for making the general public knowledgeable about the energy transition with scientifically based material.
Glucose oxidase (GOx) is an enzyme frequently used in glucose biosensors. As increased temperatures can enhance the performance of electrochemical sensors, we investigated the impact of temperature pulses on GOx that was drop-coated on flattened Pt microwires. The wires were heated by an alternating current. The sensitivity towards glucose and the temperature stability of GOx was investigated by amperometry. An up to 22-fold increase of sensitivity was observed. Spatially resolved enzyme activity changes were investigated via scanning electrochemical microscopy. The application of short (<100 ms) heat pulses was associated with less thermal inactivation of the immobilized GOx than long-term heating.
In addition to electromobility and alternative drive systems, a focus is set on electrically driven compressors (EDC), with a high potential for increasing the efficiency of internal combustion engines (ICE) and fuel cells [01]. The primary objective is to increase the ICE torque, provided independently of the ICE speed by compressing the intake air and consequently the ICE filling level supported by the compressor. For operation independent from the ICE speed, the EDC compressor is decoupled from the turbine by using an electric compressor motor (CM) instead of the turbine. ICE performances can be increased by the use of EDC where individual compressor parameters are adapted to the respective application area [02] [03]. This task contains great challenges, increased by demands with regard to pollutant reduction while maintaining constant performance and reduced fuel consumption. The FH-Aachen is equipped with an EDC test bench which enables EDC-investigations in various configurations and operating modes. Characteristic properties of different compressors can be determined, which build the basis for a comparison methodology. Subject of this project is the development of a comparison methodology for EDC with an associated evaluation method and a defined overall evaluation method. For the application of this comparison methodology, corresponding series of measurements are carried out on the EDC test bench using an appropriate test device.