Sökning: "harsh atmosphere"
Visar resultat 1 - 5 av 8 avhandlingar innehållade orden harsh atmosphere.
1. Measurement of temperature and burning-rate in solid fuel combustors by fiber-optical techniques
Sammanfattning : .... LÄS MER
2. Tundra meets atmosphere : Seasonal dynamics of trace gas exchange in the High Arctic
Sammanfattning : Arctic environments have experienced strong warming in recent decades, which is affecting the carbon cycle of tundra ecosystems.Degrading permafrost, diminishing snow cover, and changing hydrology are examples of ongoing processes that affect the land-atmosphere interactions and seasonal ecosystem dynamics. LÄS MER
3. Surface Stabilization and Electrochemical Properties from a Theoretical Perspective
Sammanfattning : Diamond and cubic boron nitride surfaces have extreme properties that can be exploited in novel tribological, electrochemical and electronic applications. Normally insulating diamond surfaces can exhibit high surface conductivities due to hydrogen termination and the nature of the surrounding atmosphere. LÄS MER
4. Growth and Heat Treatment Studies of Al-Cr-O and Al-Cr-O-N Thin Films
Sammanfattning : Aluminum oxide based thin films are applied on cutting tool inserts as a top layer to protect the underlying nitride or carbide functional layer from the harsh working environment in terms of abrasive and chemical wear under thermal and pressure load. This Thesis explores the synthesis and characterization of the next generations of multifunctional wear-resistant thin film coatings in the form of Al-Cr-O and Al-Cr-O-N compounds. LÄS MER
5. Refractory corrosion in biomass gasification
Sammanfattning : To stop the net emission of CO2 to the atmosphere, we need to reduce our dependency of fossil fuels. Although a switch to a bio-based feedstock hardly can replace the total amount of fossils used today, utilization of biomass does still have a role in a future in combination with other techniques. LÄS MER