Sökning: "Broadband"
Visar resultat 1 - 5 av 276 uppsatser innehållade ordet Broadband.
1. Visualization, modeling and consequences of residual stresses in glass frit sealing of a UV light source
Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/MikrosystemteknikSammanfattning : PureFize Technologies AB develops and manufactures a broadband ultraviolet (UVC) light technology device that is mercury-free and based on nanotechnology, using the principle of field emission. The light source is made of Ti and glass, which are hermetically bonded, using a low-temperature glass frit, at elevated temperatures. LÄS MER
2. Digitala verktyg i svensk kommunal grundskola- skillnad mellan stad och landsbygd? : DEN GEOGRAFISKA PLATSENS BETYDELSE FÖR ARBETET MED DIGITALA VERKTYG I UNDERVISNINGEN
Magister-uppsats, Uppsala universitet/Institutionen för pedagogik, didaktik och utbildningsstudierSammanfattning : The studys purpose has been to investigate similarities and differences in access to digital tools in Swedish municipal primary school dependent if the scools geographic place is in a bigger town or on the countryside. One of the studys research questions has been to investigate if it´s possible to discover any differences current the teachers attitudes and the pupils use of them in education dependent the schools geograpich place. LÄS MER
3. Towards a setup for narrowband terahertz generation through difference-frequency mixing of chirped ultrashort pulses
Master-uppsats, Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionenSammanfattning : Terahertz radiation is a useful tool for inducing lower-energy excitations in matter, where it can be used to cause structural changes through direct interaction with the crystal lattice. Sub-picosecond optical pulses can be used to generate intense broadband terahertz pulses through optical rectification in nonlinear crystals, reaching peak electric fields of several MV/m and conversion efficiencies as high as a few percent. LÄS MER
4. Steering system modal analysis
Master-uppsats, KTH/Teknisk akustikSammanfattning : The vehicle manufacturing sector is constantly evolving, and corporations are fully aware of increased consumer expectations for both driver and passenger´s comfort. SCANIA CV AB, as one of the largest Swedish manufacturers of commercial vehicles, has put an emphasis on this area. LÄS MER
5. Using forest reflectance modelling to estimate albedo for narrow-view satellites
Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap; Lunds universitet/Fysiska institutionenSammanfattning : Surface albedo estimations from remote sensing are invaluable for energy balance descrip- tions in climate research. The aim of this work is to evaluate the possibility of using Sentinel-2 satellite data to get the total albedo of a small, vegetated area. LÄS MER