Thesis (M.S.)--Rochester Institute of Technology, 2005. / Typescript. Includes bibliographical references (leaves 93-96).

Thesis (M.S.)--University of Wisconsin--Madison, 1982. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 37-39).

Thesis (M.S.)--University of Wisconsin--Madison, 1967. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

Thesis (Ph. D.)--University of Wisconsin--Madison, 1975. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Bibliography: leaves 138-156.

[No abstract submitted] / Science, Faculty of / Chemistry, Department of / Graduate

Extension of pulp and paper raw material base by increased utilization of hardwood species is one reasonable approach to the solution of the world fiber shortage problem. This is particularly so if mechanical pulp with adequate mechanical and optical properties can be produced from fast-growing hardwoods which have not been used to any great extent in the past as a raw material. Laboratory studies reported in this thesis were carried out to assess the response of Gmelina arborea Roxb., a hardwood grown extensively in Nigeria, to mechanical pulping. In this work, both open discharge and simulated thermo-mechanical refiner groundwood pulps were produced. In the latter case, the effect of chemical pretreatment with both sodium sulfite and sodium hydroxide was also evaluated. It was found that while open discharge and standard thermo-mechanical treatments resulted in mechanical pulp with inferior properties, the treatment of chips of Gmelina arborea Roxb. with a 1% sodium hydroxide solution at 250DF (121°C) for 10 minutes prior to open discharge refining resulted in a mechanical pulp having mechanical and optical properties comparable to and, in certain aspects, better than those of stone groundwood used in North American newsprint. The behaviour of this chemically pretreated refiner pulp from Gmelina in admixture with softwood kraft was also investigated. It was found that the properties of newsprint furnish handsheets containing mixtures of Gmelina mechanical pulp and West Coast semi-bleached kraft (SBK) compared favourably with those of handsheets produced from typical West Coast newsprint furnishes, thus indicating the possibility of using chemically pretreated Gmelina thermomechanical pulp (TMP) with reduced amounts of softwood SBK. To cover the situation for a fully integrated mill, a brief study was included to assess the response of Gmelina to kraft cooking, and to evaluate the behaviour of this pulp in admixture with Gmelina mechanical pulp. As expected, the kraft pulp from Gmelina was significantly weaker, mechanically, than North American kraft pulps and its deficiencies were clearly evident in the properties of mixed furnish handsheets. It was concluded, from this part of the study, that newsprint containing both its chemical and its mechanical pulp components from Gmelina would require excessively large proportions of Gmelina chemical pulp and still exert a limiting influence on paper machine speed and subsequent printing operations because of its strength deficiencies. / Forestry, Faculty of / Graduate

On two sites in south Mississippi, growth and survival of two oak species, Shumard oak (Quercus shumardii) and swamp chestnut oak (Quercus michauxii), and three planting stocks: 1-0 bareroot, conventional containerized, and EKOgrown® seedlings, were compared and evaluated for two years. Survival was assessed monthly during the first growing season and at the end of each growing season. Height and groundline diameter were assessed initially after planting and at the end of each growing season. After two growing seasons, Shumard oak exhibited superior performance generally when compared to swamp chestnut oak. EKOgrown® seedlings had poor survival likely caused by negative influences of competing vegetation. Bareroot seedlings performed better than other planting stocks, additionally, the cost efficacy of these seedlings justifies why bareroot planting stocks are superior in most cases of artificial regeneration of hardwoods.

Thesis (Ph. D.)--Dept. of Chemical Engineering, University of Sydney, 2002. / Includes bibliographical references.

Thesis (Ph. D.)--University of Sydney, 2002. / Title from title screen (viewed Apr. 28, 2008). Submitted in fulfilment of the requirements for the degree of Doctor of Philosophy to the Dept. of Chemical Engineering, Faculty of Engineering. Includes bibliographical references. Also available in print form.

Thesis (M.S.)--West Virginia University, 2009. / Title from document title page. Document formatted into pages; contains vii, 82 p. : ill. (some col.), col. maps. Includes abstract. Includes bibliographical references.