Externer wissenschaftlicher Fachvortrag oder Poster
Refine
Year of publication
Document Type
- Conference Proceeding (75) (remove)
Language
- English (75) (remove)
Keywords
- Agenda 2030 (1)
- Bernstein polynomial (1)
- Cauchon algorithm (2)
- Checkerboard ordering (1)
- Checkerboard partial ordering (1)
- Complex interval (1)
- Complex polynomial (1)
- Corrosion Resistance (1)
- Cyclic sign variation (1)
- Digital Architecture (1)
Institute
- Fakultät Bauingenieurwesen (2)
- Fakultät Informatik (2)
- Fakultät Maschinenbau (3)
- Institut für Angewandte Forschung - IAF (2)
- Institut für Strategische Innovation und Technologiemanagement - IST (3)
- Institut für Werkstoffsystemtechnik Konstanz - WIK (1)
- Institut für Werkstoffsystemtechnik Thurgau - WITg (8)
- Konstanz Institut für Corporate Governance - KICG (1)
Adjusting the friction response of the wheel-rail interface is a key factor in the mitigation of wear and rollingcontact fatigue (RCF) in rails. The use of top-of-rail (TOR) friction conditioners has the potential to reduce maintenance costs significantly. Unfortunately, conflicting results on the use of commercial TOR conditioners have been presented in the literature. In this work, the performance of commercial TOR conditioners and a laboratory-made formulation were tested, both on the lab scale and in field measurements. Friction results are discussed together with the structural and chemical analysis of the tested materials.
A significant proportion of road traffic accidents are due to inattentiveness or fatigue at the wheel. Approaches to monitoring the driver's condition range from eye tracking and driving behavior analysis to yawn and blink detection and ECG measurement. This work describes the development of a mobile system for the measurement and processing of ECG data. The aim of the signal processing is to quantify the driver’s fatigue with the heartrate variability (HRV). The work includes the hardware and software design of the sensor. First, the development of low-noise electronics including AD conversion is described. Then the software signal processing with QRS complex detection and plotting front end is explained. The resulting sensor is compact, low-cost and provides a good signal for HRV extraction.