Search for dissertations about: "Non-uniformity"
Showing result 1 - 5 of 28 swedish dissertations containing the word Non-uniformity.
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1. Through air drying : Thermographic studies of drying rates, drying non-uniformity and infrared assisted drying
Abstract : The removal of water is an integral part of papermaking. The drying process is responsible for a great share of the energy used in the paper machine. Premium grade tissue products are dried by through air drying. Large volumes of natural gas are burned to heat the air drawn through the paper web to achieve the drying. READ MORE
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2. Absorption non-uniformity characterisation and its impact on flexographic ink distribution of coated packaging boards
Abstract : There are high demands on flexographic print quality to be sufficiently high and consistent in order to create a competitive packaging. At the same time the production efficiency need to be high. Printers thus need to achieve the same quality every time and quickly start-up new printing jobs. READ MORE
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3. Through air drying : The influence of formation and pulp type on non-uniform drying and air flow
Abstract : The removal of water is an integral part of tissue paper production. Through air drying (TAD) is used for water removal when producing premium tissue grade products, however, at the price of higher energy demand. A better understanding of TAD may therefore lower the energy demand. READ MORE
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4. Where did the ink go? : The effect of liquid absorption on ink distribution in flexography
Abstract : The appearance of a print is affected by the individual ink layers. If the ink is unevenly distributed on the substrate it lowers the quality. This thesis puts focus on how the liquid absorbency of a coated substrate impacts on the ink distribution in flexographic printing. READ MORE
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5. Reactions with radioactive beams and development of scintillator-based detector systems
Abstract : An experiment on elastic scattering of 15 C on 208 Pb at an energy of 65 MeVwas performed at ISOLDE (CERN) exploiting the advantages of the ISOL te-chinique. The measurement showed in increase of the reaction cross section to3035 mb with respect to 12 C, confirming the results obtained at 80 MeV/u. READ MORE