Thesis (M.S.)--West Virginia University, 2007. / Title from document title page. Document formatted into pages; contains ix, 115 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 78-80).

This thesis is about general purpose computing on the graphics processor. The reason why this is important is because of the performance advantages that can be achieved in ordinary applications by using the GPUs programmability and performance. The problem investigated is the use of a complex data-structure, namely linked lists, and what their possible benefits are when run on the GPU. I also wanted to investigate if it was viable to implement a complex data-structure on a GPU. Implementations was made of the linked list both on the GPU and on the CPU and then measurements of the performance of doing different linked list operations was conducted. Also tests was made to measure the quality of the output. I was surprised to see that the GPU performed bad when compared to the CPU on all of the linked-list operations but the quality testing showed that the GPUs and CPUs output were the same. Testing of what parts of the GPU application that caused the bad performance showed that it was the initiation of the application. I also found out that it was not that hard to learn how to program applications for the GPU except for when learning the new programming model. To conclude it can be said that my first investigation showed that linked lists does not run faster on the GPU than on the CPU but the quality is sufficient. My second investigation about the viability to use data-structures on the GPU showed that it was much easier than I expected and therefore viable if you can tolerate the bad performance.

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Cette thèse propose une analyse contrastive de la notion de défini telle qu’elle est exprimée dans le système de l’article en anglais et en arabe moderne standard. L’ensemble des notions associées au défini et à l’indéfini sont examinées d’un point de vue sémantique et d’un point de vue syntaxique, afin de découvrir la manière dont les deux langues traitent ces concepts; les différences et les ressemblances sont répertoriées dans le contexte d’une étude détaillée de corpus. Le récit, The Brook Kerith de l’écrivain irlandais George Moore a été choisi pour des raisons géo-historiques et littéraires: les événements racontés se déroulent en Terre Sainte à l’aube de l’ère chrétienne. Les occurrences du syntagme nominal en anglais et en arabe analysées dans le premier chapitre permettent de dégager les convergences et les divergences des deux systèmes. Les résultats sont soumis à une analyse quantitative et statistique. Il en ressort que la valeur de l’article défini en anglais (“the”) et en arabe (“al”) correspondent dans 76% des emplois. La ressemblance entre la valeur de l’article indéfini (“a / an”) en anglais et son équivalent en arabe s'élève à 96%. Cependant, dans la mesure où l’arabe est une langue sans article indéfini, le fonctionnement de l’article zéro en anglais est sans équivalence; on découvre que l’arabe choisit selon le contexte, soit la marque du défini (al), soit la marque sémiologique de l’indéfini. En dernière analyse, on constate une grande ressemblance entre les mécanismes cognitifs sous-jacents; les différences concernent les transformations sémiotiques de la structure profonde. / This thesis offers a contrastive analysis of the notion of definiteness as conveyed by the system of the article in English and Standard Arabic. Definiteness and other notions associated with it are investigated semantically and syntactically in an attempt to discover how these two languages approach such notions and when the two languages converge and diverge in this respect. To this end, corpus analysis is chosen as a means to inspect these ideas. The corpus, The Brook Kerith, by the Irish writer, George Moore, is chosen for geo-historical and literary reasons: the story takes place in the Holy Land at the dawn of this Christian era. A contrastive analysis of the first chapter along with its translation is analyzed from a pragmatic and semantic perspective. The analysis is followed by statistical and computational analyses. It is found that the article “the” and the Arabic article “al’ are used for seemingly the same purpose in the proportion of 76%. The occurrence of the article “a/an” is 96% consistent with indefiniteness in Arabic. However, the use of the “zero article” shows discrepancy as whether to use the article “al” or no article in Arabic. In the last analysis, the cognitive operations underlying usage in both languages are similar. The differences are on the level of the semiotic transformation of these deep operations.

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Thesis (M.S.)--Oregon State University, 2007. / Printout. Includes bibliographical references (leaves 52-60). Also available on the World Wide Web.

Triploid (sterile) trout potentially offer a more risk-averse option for stocking popular non-native sport fish; however the relative performance (e.g., survival and growth) of triploid versus diploid fish in natural settings is not well understood. I evaluated the relative performance of triploid versus diploid brook trout (Salvelinus fontinalis) stocked in high mountain Uinta lakes in response to food availability and lake morphology. I chose a set of 9 lakes that included a range of elevation and lake morphology. I observed no difference in CPUE or relative weight (Wr) of both types of trout in all lakes. Food availability (e.g., zooplankton and macroinvertebrates) varied substantially among lakes; however I observed no discernible difference between diploid and triploid diets, diet preference, or isotopic trophic signatures. Physical lake characteristics (e.g., dissolved oxygen [DO, mg/L] and temperature [°C]) were within or near optimal brook trout conditions (metabolically beneficial range) during the summer, but over-winter DO reached near lethal levels under the ice. In sum, between the two strains, I did not observe any significant differences in relative performance measured across a number of indices; however the size distribution of diploid fish was marginally (20 mm) skewed towards larger fish (a difference likely not great enough to be detectable by the average angler). In contrast to the similarity in performance between strains, I did observe considerable variability in performance of brook trout across lakes as a function of lake productivity, food availability, and most importantly fish density. Fish performance was greater in lakes with a lower density of stocked fish. Overall, the results from this study indicate triploid brook trout offer a viable and risk-averse alternative to stocking diploid fish in Uinta mountain lakes. Stocking triploid fish should decrease the threat of uncontrolled expansion into adjacent water bodies, while still allowing managers to maintain a popular non-native sport fishery.

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Thesis (Ph. D.)--Rutgers University, 2009. / "Graduate Program in Civil and Environmental Engineering." Includes bibliographical references (p. 259-263).