Sökning: "#928"
Visar resultat 1 - 5 av 61 avhandlingar innehållade ordet #928.
1. Mössbauer Spectroscopy of Meteoritic and Synthetic Fe-Ni Alloys
Sammanfattning : This thesis reports on the results of investigating Fe-containing minerals in meteorites, with focus on Fe-Ni minerals and their magnetic properties, along with some synthetic Fe-Ni analogues. The New Halfa meteorite, which fell in Sudan 1994, has been studied using Mössbauer spectroscopy, X-ray diffraction, and electron microprobe analysis techniques, and classified as an ordinary L-type chondrite of petrologic type 4. LÄS MER
2. Quality and motion estimation for image sequence coding
Sammanfattning : Since the advent of television obtaining high perceived quality using a limited bandwidth has been an important issue. This thesis proposes methods inspired and based on the human visual system for exploitation of temporal and perceptual redundancy in image sequences to achieve lower coding rate and/ or higher visual quality. LÄS MER
3. Purification Processes for Complex Biomacromolecules
Sammanfattning : This thesis details various techniques and considerations for the purification of complex biomacromolecules. Initially an α-mannosidase from babaco fruit was purified using anion exchange-, lectin affinity- and size exclusion chromatography. LÄS MER
4. Human muscle spindles : complex morphology and structural organisation
Sammanfattning : Muscle spindles are skeletal muscle mechanoreceptors that mediate the stretch reflex and provide axial and limb position information to the central nervous system. They have been proposed to play a major role in the pathophysiology of muscle pain. LÄS MER
5. Alcohol screening and simple advice in emergency care : staffs’ attitudes and injured patients’ drinking pattern
Sammanfattning : Background: About 800,000 people are risky drinkers in Sweden and the alcohol consumption has increased around 30% during the last 6 years. In order to counteract the negative effects of drinking there is a need to implement preventive measures at various levels in society. LÄS MER