Sökning: "Acoustic Spectroscopy"
Visar resultat 1 - 5 av 13 uppsatser innehållade orden Acoustic Spectroscopy.
1. Quality Control in Aluminium Profiles : Non-destructive Methods using Non-linear Ultrasonic
Uppsats för yrkesexamina på avancerad nivå, Blekinge Tekniska Högskola/Institutionen för maskinteknikSammanfattning : When aluminium profiles are manufactured, defects may arise, especially when theprofiles are manufactured through extrusion. During the extrusion process, thesedefects occur on parts of the extruded material because of contaminates that needto be found. LÄS MER
2. Bearing condition monitoring : An investigation on the possibility of monitoring aging of the lubricating grease by means of acoustic emission and temperature.
Master-uppsats, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematikSammanfattning : Grease is among the most widely used lubricants in rolling element bearings. Proper understanding of the effect of lubrication due to grease aging can provide a significant increase in the life of the engineering systems. However, at present, there is no sufficient understanding of the grease aging effect in rolling elements bearing. LÄS MER
3. Acoustic Characterization of the Cellulose-coated Perfluorocarbon Droplets based on Phase Velocity Measurements
Master-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)Sammanfattning : Today, microbubbles are one of the most commonly used ultrasound contrast agents, since their high compressibility results in a strongly scattered signal. Despite this advantage, microbubbles experience limitations by the decreased stability and large diameter. LÄS MER
4. Förbättrad Slamavvattning : En analys av polymerdoseringens påverkan på sluttorrhalten
Master-uppsats, Karlstads universitetSammanfattning : Vatten som används av pappers- och massaindustrin måste renas och då bildas olika sorters slam. För avvattning av slam går det åt stora mängder kemikalier och processen är ofta kostsam. Dock är det en viktig process inom vattenreningen. LÄS MER
5. Development and characterization of tissue-mimicking phantom materials for photoacoustic imaging
Master-uppsats, Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionenSammanfattning : Tissue-mimicking phantoms are of great interest in the development of bio-medical applications. Instead of applying to biological tissues directly, phantoms enable stable and easy accessibility to validate spectroscopy systems and measuring processes. This thesis project is centered on the development and characterization of phantoms. LÄS MER