Thesis (Ph. D.)--Virginia Polytechnic Institute and State University, 1990. / Vita. Abstract. Includes bibliographical references (leaves 277-298). Also available via the Internet.

Thesis (doctoral)--Lund University, 1994. / Added t.p. with thesis statement inserted. Includes bibliographical references (p. 52-63).

Thesis (Ph. D.)--University of Hawaii at Manoa, 1995. / Includes bibliographical references (leaves 106-112). / Microfiche. / x, 112 leaves, bound ill. (some col.) 29 cm

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The high-energy open shelf along the southern Australian continental margin is blanketed by heterozoan cool-water carbonates of late Pleistocene and Holocene age. Three distinct assemblages have been identified and radiocarbon dated. These include: i) Holocene grains, unaltered biofragments deposited during Marine Isotope Stage 1; ii) stranded grains, grey and buff-colored abraded biofragments and intraclasts marooned during the sea level rise associated with the latter stages of Marine Isotope Stage 2; and iii) relict grains, highly abraded, iron-stained intraclasts originally deposited during the intermediate sea-level stands of Marine Isotope Stages 3 and 4. Whereas the skeletal makeup of Holocene grains has been previously detailed, attributes of the older grains have not been elucidated. Relict-grain skeletal composition indicates that during Marine Isotope Stages 3 and 4 shallow, warm, oligotrophic, marine grassbed environments developed across the western portion of the region, whereas more heterozoan assemblages to the east imply cooler marine waters and that an overall upwelling regime was in effect. Stranded grains (Marine Isotope Stage 2) are mostly heterozoan across the whole region, reflecting deposition on narrower shelves (restricted euphotic zone) and in generally cool waters. Stable isotopic compositions of relict and stranded foraminifera indicate that the western portion of the region (the Great Australian Bight) had water of elevated salinity. Environments analogous to outer Shark Bay are interpreted to have formed across the Great Australian Bight during portions of Marine Isotope Stages 2, 3 and 4. Comparison between relatively unaltered Holocene grains and altered late Pleistocene stranded and relict grains reveals pathways of early diagenesis in this cool-water marine realm. Both calcitic and aragonitic biogenic grains display dissolution features. Dissolution of calcitic components over the past ~20,000 years is incomplete (stranded and relict sediments are predominantly Mg-calcite). Aragonitic skeletons, however, are mostly dissolved over this same time period. Contemporaneously, micritic cement also precipitates in this environment, wherein Mg-calcite (~12 mol%) infills skeletal pores of many stranded and most relict skeletons. Similar cement locally precipitates between grains, forming cemented grain aggregates. Mobilization of metals in the slightly reducing pore waters of the southern Australian margin has resulted in the formation of Fe- and Mn-oxides that discolor the stranded and relict grains. Such oxides precipitated on the surface of shells, in empty microbial borings, and in skeletal micropores, scavenge other trace metals, altering the original elemental makeup of these cool-water carbonates. Trace element analysis of Holocene carbonate grains and of living gastropod skeletons indicates that these coatings begin to precipitate during or soon after shell formation. Marine dissolution/precipitation dynamics in addition to mobilization of metals in pore water, fundamentally changes the sedimentological and chemical attributes of these cool-water carbonates on the seafloor soon after deposition. / Thesis (Ph.D, Geological Sciences & Geological Engineering) -- Queen's University, 2008-01-14 09:41:25.35

Nitrogen (N) use continues to be an important aspect of forage production. Experimentation was conducted to understand the combined effects of N application and harvest regime on three cool-season grasses: orchardgrass, southeastern wildrye, and tall fescue. Tests were established at Starkville and Brooksville, MS, in fall 2013 and 2014, respectively. Plots were fertilized with 0, 134, 202, or 269 kg N ha-1 yr-1 and harvested one, two, three, or four times during the 112-day season. Variables measured included: cumulative dry matter yield, relative forage quality, crude protein percentage, normalized difference vegetation index, nitrogen use efficiency, and persistence. Persistence was only recorded for southeastern wildrye. Species, N application, and harvests were significant in combination with one another (either two or all three) for all variables except persistence. Only harvest frequency was significant for persistence. Further research should be conducted to evaluate cutting height when incorporating N and multiple harvest events.

Autobiographical life-writing as literary métissage about cool through stories grounded in auto-ethnographic reflection as a|r|t|ographer. An act of literary sharing. A past to present summed up as parts, as portraits or vignettes, building towards an attempted understanding of cool. Introspective reflection on cool supported by photographs, drawing, paintings, and poetry. A consideration of Franco Ontarian minority language secondary school population adolescent conceptions and notions of cool (Drolet et al, 2009). An inquiry into cool presented as a bioecological album (Urie Bronfenbrenner, 1979, 1994). A life-long journey from developing childhood cool to middle school cachet cool to high school contrarian cool to old school cool. Childhood to contrarian to cachet to Bieber’d [fucked] to adult cool. Historical cool. What is cool?

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Published Article / The paper presents a critical review of the techniques that are used to cool plastic injection moulds. It examines research on cooling of injection moulds by conventional cooling, the benefits and the limitations of the method. It compares the deployment mechanisms that have been proposed by various researchers. It also examines how the various mechanisms affect the plastic cooling rate and the overall heat transfer performance of the mould and how the various deployments affect the stress distribution of the mould and mould durability. The paper also presents the possibilities that have been presented by rapid prototyping. It discusses the development of conformal cooling as an alternative to conventional cooling. It presents the state of the art on the method. The paper presents the deficiencies in the current theories on conformal cooling and suggests areas that require further work in order to fully exploit the technique.

This is a collection of creative nonfiction essays.