- Magnetic Properties and Applications
- Voice and Speech Disorders
- Speech Recognition and Synthesis
- Ultrasonics and Acoustic Wave Propagation
- Piezoelectric Actuators and Control
- Advanced MEMS and NEMS Technologies
- Ultrasound Imaging and Elastography
- Non-Destructive Testing Techniques
- Shape Memory Alloy Transformations
- Acoustic Wave Resonator Technologies
- Energy Harvesting in Wireless Networks
- Electric Motor Design and Analysis
- Speech and Audio Processing
- Structural Health Monitoring Techniques
- Acoustic Wave Phenomena Research
- Microstructure and Mechanical Properties of Steels
- Bat Biology and Ecology Studies
- Underwater Vehicles and Communication Systems
- Magnetic Field Sensors Techniques
- Mechanical and Optical Resonators
- Innovative Energy Harvesting Technologies
- Dysphagia Assessment and Management
- Optical measurement and interference techniques
- Cellular and Composite Structures
- Sports injuries and prevention
UMIT - Private Universität für Gesundheitswissenschaften, Medizinische Informatik und Technik
2018-2025
Friedrich-Alexander-Universität Erlangen-Nürnberg
2008-2017
Technische Universität Ilmenau
2003
Abstract Light‐driven biocatalytic processes are notoriously hampered by poor penetration of light into the turbid reaction media. In this study, wirelessly powered light‐emitting diodes found to represent an efficient and scalable approach for process intensification photobiosynthetic production diesel alkanes from renewable fatty acids.
Ex vivo larynx experiments are limited in time due to degeneration of the laryngeal tissues. In order acquire a significant and comparable amount data, automatization current manual experimental procedures is desirable. A computer controlled, electro-mechanical setup was developed for time-dependent variation specific physiological parameters, including adduction elongation level vocal folds glottal flow. The offers standardized method induce defined forces on cartilages. Furthermore,...
Delocalized internal irradiation is a promising technique for intensification and scale-up of photochemical processes as it avoids the otherwise inevitable light concentration. In particular, wireless emitters (WLEs) powered by resonant inductive coupling showed promise in previous studies. However, achieved photon flux was still relatively. Herein, we show that through systematic optimization, WLE can reach extremely high densities energy efficiency, surpassing conventional reaction...
Photocatalytic reactions can be efficiently driven by completely integrated photocatalyst–light emitter units which are wirelessly powered using resonant inductive coupling.
Compared to 25 years ago, the climbing sport itself has changed dramatically. From a rock modification separation in three independent disciplines, requirements athletes and trainers increased rapidly. To ensure continuous improvement of itself, usage measurement sensor technology is unavoidable. Especially field discipline speed climbing, which will be performed as single at Olympic Games 2024 Paris, current state art movement analysis only consists video benefit experience trainers....
The ability to communicate with our voice can be regarded as the concatenation of two processes "phonation" and "modulation." These take place in larynx palatal oral region, respectively. During phonation audible primary signal is created by mutual reaction vocal folds exhaled air stream lungs. underlying interactions masses, fluids acoustics have yet identified understood. One part signal's acoustical source are vortex induced vibrations, e.g., Coandăeffect stream. development these...
The dynamic Young's modulus, Poisson's ratio, and the damping factor of silicone rubber are determined from a laser triangulation measurement top surface motion flat cylindrical sample excited by shaker. These material parameters estimated on basis an Inverse Method that minimizes difference between measured data prediction finite-element model (FEM), in which sought-after adjustable parameters. results presented for measurements within 10-400-Hz frequency range under atmospheric pressure...
In this paper, we present a model for temperature dependent hysteretic nonlinearities with nonlocal memories. This can be applied to describe material behavior. Common applications are ferromagnetic or magnetostrictive materials. Our consists mainly of Preisach operator continuous weight function. We choose function which shows strong correlation between the function’s parameters and certain properties hysteresis curve. As new approach, is written as temperature. The customized set symmetric...
This paper proposes a numerical discrete formulation for an inverted hysteresis model, which is based on the classic Preisach but applies switch operator. The operator modified from of model. By applying this operator, model retains wiping-out and congruency properties. distribution weight function can be approximated with analytical function. means quasi-Newton method algorithm, small number parameters in directly determined major loops. Iterative procedure circumvented implementation...
We present a model for the simulation of ferroelectric hysteresis loops. It is based on Preisach operator and takes advantage an analytic weight function underlying fundamental switching operators. The five independent parameters describing this are determined discoidal piezoceramic actuator by adapting output to measurements polarization. Further simulations, performed using adapted compared actuator. To consider time dependent behavior domains, our furthermore extended drift verified means...
We present a method for optimizing the design of held coils new type photobioreactor (PBR). In those PBRs, photosynthetic active microorganisms or cells are grown. A novel concept illumination PBRs was necessary, as external reactors leads to limited penetration depth light. The solution we propose is an internal via wireless light emitters (WLEs). This increases manageable culture volume cells. system based on floating emitters, which powered wirelessly by near resonant inductive coupling....
In the evaluation of large-scale metallic specimens, X-ray CT suffers from limited penetration, which results in artifacts reconstructed image. Data fusion information obtained by different modalities allows correction those artifacts. this contribution, an approach is presented to provide complementary data inner pattern specimen ultrasonic testing immersion mode. To process imaging full-angle synthetic aperture focusing technique, are acquired along a priori known contour specimen....