Sökning: "Physiological signal"
Visar resultat 1 - 5 av 207 avhandlingar innehållade orden Physiological signal.
1. Real-time signal processing in MEMS sensor-based motion analysis systems
Sammanfattning : This PhD thesis focuses on real-time signal processing for hardware-limited micro-electro-mechanical system (MEMS) sensor-based human motion analysis systems. The aim of the thesis is to improve the signal quality of MEMS gyroscopes and accelerometers by minimizing the effects of signal errors, considering the hardware limitations and the users' perception. LÄS MER
2. Intelligent Driver Mental State Monitoring System Using Physiological Sensor Signals
Sammanfattning : Driving a vehicle involves a series of events, which are related to and evolve with the mental state (such as sleepiness, mental load, and stress) of the driv- er. These states are also identified as causal factors of critical situations that can lead to road accidents and vehicle crashes. LÄS MER
3. Processing of the Phonocardiographic Signal : methods for the intelligent stethoscope
Sammanfattning : Phonocardiographic signals contain bioacoustic information reflecting the operation of the heart. Normally there are two heart sounds, and additional sounds indicate disease. If a third heart sound is present it could be a sign of heart failure whereas a murmur indicates defective valves or an orifice in the septal wall. LÄS MER
4. Lysophosphatidic acid : Physiological effects and structure-activity relationships
Sammanfattning : Lipids havepreviously been considered primarily as building blocks of the cell membrane, but are now also recognized as important cell signaling molecules. Lysophosphatidic acid (LPA) is a glycerophospholipid consisting of a phosphate head group, a linker region, and a lipophilic tail. LÄS MER
5. The effects of glucocorticoids on brown fat : physiological and molecular studies
Sammanfattning : Brown adipose tissue (BAT) is the main site for non-shivering thermogenesis in most mammals. The BAT-specific uncoupling protein-1 (UCP1) uncouples substrate oxidation from ATP production and hereby decreases metabolic efficiency. LÄS MER