Search for dissertations about: "surface pre-treatment"
Showing result 16 - 20 of 35 swedish dissertations containing the words surface pre-treatment.
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16. Silicon and Quartz Microengineering : Processing and Characterisation
Abstract : Microengineering has developed a broad range of production techniques to reduce size, increase throughput, and reduce cost of electrical and mechanical devices. The miniaturisation has also entailed entirely new opportunities. READ MORE
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17. Extraction of Polymeric Hemicelluloses from Spruce Wood
Abstract : Hemicelluloses are one of the three main components of spruce wood and constitute about 20% of the wood material. During mechanical pulping, 5–10% of the hemicelluloses are accumulated in waste waters, whereas during chemical pulping 70–80% of the hemicelluloses are lost in process liquors. READ MORE
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18. Modern Artificial Recharge Plants : Combining chemical flocculation with aquifer recharge
Abstract : Water supply security is increasingly becoming a challenge worldwide. Surface waters, which are often used for drinking water production, have experienced an increase in natural organic matter (NOM) and frequency of algae blooms. Water quantity is also an issue due to increasing populations and potable water demand. READ MORE
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19. Self-bonding of beech veneers
Abstract : This thesis presents studies on the self-bonding of veneers, and investigations into the properties of boards obtained by hot-pressing beech veneers without adhesives. The raw material is pressed at temperatures from 200 to 250ºC, at pressures from 4 to 6 MPa and pressing times from 240 to 360 s. READ MORE
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20. Defects in Zeolite Catalysts and Membranes
Abstract : ZSM-5 is one of the most well-known zeolites. It has been synthesized for many different applications, including as catalyst for catalytic reactions and as a membrane in separation processes. The main goal of this thesis is to investigate and characterize the defects in crystal and film growth of ZSM-5 for modification purposes. READ MORE