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Mechanisms of print gloss development with controlled coating structure /Jeon, Sung Jai, January 2002 (has links)
Thesis (M.S.) in Chemical Engineering--University of Maine, 2002. / Includes vita. Bibliography: leaves 182-193.
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The influence of process parameters on filament size distribution /Ercan, Saybil Nuray, January 2001 (has links)
Thesis (Ph. D.) in Chemical Engineering--University of Maine, 2001. / Includes vita. Includes bibliographical references (leaves 141-149).
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Mathematics of origamiSong, Kyoyong 02 February 2012 (has links)
This report examines the mathematics of paper folding. One can solve cubic polynomials by folding a common tangent to two distinct parabolas. This then leads to constructions that cannot be done with a straightedge and compass such as angle trisection and doubling a cube. / text
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Insight on the effect of contour height in pressure screeningBiniaris, Andreas 05 1900 (has links)
The main purpose of this study was to determine the effect of contour height on the passage ratio of pulp through screen apertures, and determine which operating variable has the greatest affect on screen performance. In addition, a freeness model was to be developed, in hopes of helping to predict the freeness drop between feed and accepts.
The study was conducted at The University of British Columbia (UBC) using a laboratory scale pressure screen. Slot velocity, feed consistency and contour height were the changing variables. Samples were collected from which passage ratio, freeness, fibre length and coarseness were determined.
From the studies conducted it was found that slot velocity had the greatest influence on the screen operation. As the slot velocity increased a greater force was applied to the fibre to help push it through the screen aperture. However, this increase in slot velocity decreases the fractionation ability (separation of fibres into different lengths) of the screen.
The second most important variable was the contour height. The main function of the contour height is to disrupt the flow of thick stock at the wall of the screen and allow for unhindered movement of fibre to the screen wall. The greater the contour height is, the greater the passage ratio (pulp fibre passing through screen). However, there is a decrease in fractionation.
The third most important factor was the feed consistency. At low feed consistencies there is less crowding in the screen. Less crowding leads to more loosely-formed flocs, which are easier for the contour height and the rotor to dissipate and thus leads to unhindered movement. Thicker feed stock has a negative effect on passage
A Freeness model was developed that showed that freeness had a power law relationship to passage ratio. The passage ratio was raised to a constant B, which is a function of the contour height and the feed consistency.
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Land disposal of newsprint mill effluents.Salloum, John Duane. January 1973 (has links)
No description available.
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An analytical study of rimming condensate flowWarren, Phillip John 12 1900 (has links)
No description available.
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Application of principal component analysis in the identification and control of sheet-forming processesRigopoulos, Apostolos 05 1900 (has links)
No description available.
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Investigation of the mechanical properties of copy paper using laser generated and detected lamb wavesJohnson, Mont A. 05 1900 (has links)
No description available.
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Variables affecting supercalenderingAinsley, J. A. January 1976 (has links)
No description available.
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Byo by and fusuma : developing an approach to the conservation of Japanese screens through historical and technical study and an investigation of current practicesGrantham, Sandra January 1999 (has links)
No description available.
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