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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
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Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 1 to 10 of 96 (0.044 seconds)Spelling suggestions: "subject:"black spruce."" "subject:"slack spruce.""
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Determination of the structure of the black spruce glucomannan from the molecular and hydrodynamic properties of its triacetate derivativeLinnell, William S. 01 January 1965 (has links)
No description available.
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| 2 |
A study of the molecular properties of the hemicelluloses of black spruce.Wethern, James Douglas 06 1900 (has links)
No description available.
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| 3 |
Kinetics studies of the flash pyrolysis of wood barkMok, Steven Lai-Kwok. January 1984 (has links)
No description available.
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| 4 |
Essays on the life of black spruce, Picea mariana (Mill.) BSPWileyto, E. Paul (Edward Paul) January 1981 (has links)
No description available.
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| 5 |
Essays on the life of black spruce, Picea mariana (Mill.) BSPWileyto, E. Paul (Edward Paul) January 1981 (has links)
No description available.
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| 6 |
Kinetics studies of the flash pyrolysis of wood barkMok, Steven Lai-Kwok. January 1984 (has links)
No description available.
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| 7 |
The Leucoanthocyanin from Black Spruce inner barkManson, Dan W. 01 January 1959 (has links)
No description available.
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| 8 |
Kinetics of alkaline delignification of black spruce woodRivers, J. A. (John Abbot) January 1982 (has links)
A previously proposed kinetics equation describing the delignification of wood in soda-anthraquinone (AQ) liquors was shown to be valid under isothermal conditions, and was extended to describe variation in initial alkali charge. Kinetics expressions were derived for soda-amine, kraft (soda-hydrosulfide ion) and soda-ethanol delignification under isothermal conditions over various ranges of additive charge. In each case, the total delignification observed after a given time of pulping could be described as the sum or two contributions: (i) that due to the sodium hydroxide alone, and (ii) that due to the additive (AQ, amine, hydrosulfide ion or ethanol). Rate constants were determined at various temperatures and apparent Arrhenius activation energies were calculated for soda-AQ, soda-amine and kraft delignification. Although the calculated activation energies were found to be similar, the forms of kinetic expressions obtained suggested that the role of AQ in alkaline delignification may differ from that of an amine or hydrosulfide ion. The effects of various combinations of additive pairs on delignification were investigated and the results suggested that interactions occur. Under certain conditions, delignification in soda-AQ-amine and kraft-AQ liquors, respectively, could be described as the sum of the effects of the sodium hydroxide alone, the amine or hydrosulfide ion, and a term dependent upon the anthraquinone.
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| 9 |
The glucomannans of sitka and black sprucesWalker, Roger H. January 1971 (has links)
A study was made of two glucomannans, one isolated by alkaline borate extraction of Sitka spruce wood and the second from black spruce. These were methylated by the Hakomori procedure employing sodium hydride in dimethyl sulfoxide. Considerable experimentation was done to determine the best conditions for methylation and to demonstrate the utility and practicability of analysis by these methods. Some inferences regarding the structure of the glucomannans are drawn from the methylation data. / Science, Faculty of / Chemistry, Department of / Graduate
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| 10 |
Kinetics of alkaline delignification of black spruce woodRivers, J. A. (John Abbot) January 1982 (has links)
No description available.
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