Sökning: "local carrier injection"
Visar resultat 1 - 5 av 8 avhandlingar innehållade orden local carrier injection.
1. Design and Construction of Low-Temperature Scanning Tunnelling Microscope for Spectroscopy
Sammanfattning : This thesis discusses some of the fundamental requirements needed to be fulfilled when constructing a low temperature scanning tunnelling microscope (STM). Three different designs, two non-vacuum and one ultra-high vacuum (UHV), based on either inertial-mass or novel stepper motor principles are presented. LÄS MER
2. Pain induced by propofol - clinical studies on drug composition and adminstration
Sammanfattning : Over the last 25 years a number of new anaesthetic drugs have been introduced on the market to allow for better patient satisfaction and faster recovery after anaesthesia and sedation. Propofol (2,6-di-isopropylphenol), one of our most common iv anaesthetics, is associated with pleasant sleep and rapid recovery with little postoperative nausea. LÄS MER
3. Long acting local anaesthetics - a study in rats
Sammanfattning : Local anaesthetics provide excellent pain relief after central and peripheral nerve blocks. However, in many clinical situations there is an insufficient duration of action to allow effective treatment of long-term pain with single injection techniques. This problem became the focus of the present studies. LÄS MER
4. Silicon carbide field-effect devices studied as gas sensors for exhaust gas monitoring
Sammanfattning : Metal-insulator-silicon carbide (MIS) structures have been studied as gas sensors. We have investigated how the sensors detect gases, how fast they do that, and how they could be used for exhaust gas monitoring.We have prepared simple field-effect devices, MIS-capacitors and Schottky diodes, on silicon carbide with platinum gates. LÄS MER
5. BMP treatment for improving tendon repair. Studies on rat and rabbit Achilles tendons
Sammanfattning : We wanted to improve tendon healing by adding a growth factor. Bone Morphogenetic Proteins (BMPs) are well known to stimulate bone healing and bone formation. The local environment is of major importance for cell differentiation after a BMP has been added. LÄS MER