Thesis (Ed. D.)--West Virginia University, 2006. / Title from document title page. Document formatted into pages; contains iv, 55 p. Includes abstract. Includes bibliographical references (p. 51-53).

One of the most important decisions in the product development process is the selection of a promising design concept because of the large influence it has on the final product. A thorough search for the best design is a significant challenge to designers, who are trying to balance the objective and subjective performance of the designs they create. In this thesis, a computationally-assisted design methodology is developed and used in the early stages of design to more thoroughly search for designs that perform well according to objective physics-based models and subjective designer-specific preference-based models. The method presented herein uses an initial pool of user-created designs that is parameterized and used in a numerical search that recombines design features to form new designs in a semi-automated way. Designs are then evaluated quantitatively by objective performance calculations and evaluated qualitatively by human designers. Designer preference is interactively gathered when visual representations of new computer-created designs are presented to the designer for subjective evaluation. A mathematical model is then formed using statistical probability methods to approximate the designer's preference and incrementally updated after the designer subjectively evaluates a new set of designs at each iteration of the automated search process. The methodology uses a multiobjective approach to search for optimally performing designs, treating both the physics-based models and the preference-based models as objectives. The methodology couples the speed of computational searches with the ability of human designers to subjectively evaluate unmodeled objectives. The method is demonstrated with two product examples to find optimal designs that designers may not have otherwise discovered among the vast number of possible combinations of features. The proposed methodology brings the ability to search for and find numerous, optimal solutions across a wide solution space, in an efficient and human-centered way, and does so in the early stages of design.

Le concept de besoin a-t-il une réelle valeur normative? Si c'est le cas, en quoi consiste-t-elle et d'où provient-elle? Garrett Thomson offre des réponses intéressantes à ces questions en clarifiant le concept de besoin et en dissipant plusieurs idées fausses. Selon lui, le concept de besoin, lorsque bien défini, peut nous permettre à la fois d'expliquer et de justifier certaines actions humaines. Un besoin tire sa valeur explicative du fait qu'il est parfois la source de nos désirs, alors que sa valeur justificative lui vient de son lien étroit avec notre bien-être. Le modèle de Thomson est intéressant, mais il mérite d'être modifié afin, d'une part, de mieux répondre aux critiques relativistes et, d'autre part, de faire l'économie d'une conception douteuse du bien-être. Je propose une légère révision des termes utilisés par Thomson, l'introduction d'une hiérarchie de besoins dans le modèle ainsi qu'une interprétation du bien-être en termes d'états mentaux.

Les éléments du groupe du platine (EGP) peuvent s’avérer très utiles pour aborder certains processus pétrogénétiques et géochimiques ayant affecté le manteau terrestre. Les péridotites mantelliques et certaines roches intrusives provenant de la section mantellique du Massif North Arm Mountain (MNAM) (Complexe Ophiolitique de Bay of Islands, Terre-Neuve) ainsi que de la Faille Transformante Garrett (FTG) ont fait l’objet d’une détermination des teneurs en Ir, Ru, Rh, Pt et Pd par spectrométrie de masse à émission de plasma. Ces données sur les teneurs en EGP ont été obtenues grâce à une méthode d’extraction et de dosage récemment mise au point.... / Québec Université Laval, Bibliothèque 2019

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Zugl.: Düsseldorf, Univ., Diss., 2004

Internal waves (IWs) owe their existence to the stratification in the medium. These waves affect acoustic transmission greatly. Impact of these waves on acoustic transmission in deep water is fairly well understood due to better performance of well-celebrated Garrett-Munk (GM) model. However, in shallow waters, predicting these waves is not as easy, because of interactions with the bottom and surface. Hence two experiments, one during October 2002 and the other during October 2004 were conducted to characterize IWs in the shallow waters of northeastern Arabian Sea. The first experiment was carried out during October 2002 south of Gulf of Kutch (GOK) and the second experiment during October 2004 both south and north of GOK. During these experiments CTD moorings were deployed and temperature and salinity (TS) data were collected at 5 seconds interval. CTD Yo-Yo collected vertical profiles of TS at a sampling interval of 2.5 minutes for 3.5 hours during October 2002 and 1 hour during October 2004 experiment. In addition, during the first experiment, currents were measured using a vessel mounted Acoustic Doppler Current Profiler (ADCP), and in both experiments CTD TS profiles were taken from the ship. This data set has been used for characterizing internal waves in the northeastern Arabian Sea. Experiment conducted during October 2002, south of GOK has revealed large tidal ranges. The barotropic tidal range at the experimental site was 1.5m. Current observations made using the vessel mounted ADCP, along the shore and across the shore, showed signs of first mode (baroclinic) oscillations; currents in the top and bottom layers were in opposing directions. They were found to be southwesterly in the top layer and northeasterly in the bottom layer. Time - depth sections of TS profiles from CTD yo-yo data, revealed the presence of high frequency internal waves and solitons overriding on low frequency trend. Moored CTD time series of temperature records showed the presence of internal solitons, which caused a vertical displacement of about 8m in the isotherms, which is equivalent to 3OC change in temperature, in less than 10 minutes. Passage of internal solitons induced vertical mixing causing the mixed layer to deepen by about 10m and current speed increased by about 0.1 m/s. Internal solitons were traveling towards northwest and current vectors suggest that they were generated when the internal tide is reflected from the bottom. Vertical displacement spectra agreed well with GM spectra when solitons were not present. However, when the solitons were present the displacement spectra had higher energy levels compared to the GM spectra. Another experiment was done in October 2004, mainly aimed at characterizing internal solitons and to verify the consistency of the results obtained during October 2002 experiment. This experiment also showed that IWs of both high and low frequency along with internal solitons were present at the experimental site. It was found that internal solitons were more energetic during spring tide than the neap. The observed amplitudes of these solitons were around 12m and were not rank ordered suggesting that the experimental site is close to the generation point. It is believed that, generally, solitons get phase locked to the barotropic tide’s trough and travel. Such phase locking was not observed at the experimental site. They were observed riding on both troughs and crests of barotropic tide. One of the aims of this thesis is to develop a simulation model based on Garrett-Munk steady state internal wave spectrum. Hence, an internal wave model IWAVE was developed to simulate the sound speed structure due to internal waves. Sound speed structure is simulated instead of TS structure, because of their direct utility in sonar range prediction models. Since the GM model is a deep-water and mid-latitude model, it was calibrated to suite shallow-water tropical environment by incorporating the site and region specific parameters. EOFs and Dynamical modes estimated using TS profiles were used to identify the site-specific parameters of the GM model. Values for characteristic mode number and spectral slope used in the GM model are 3 and 2 respectively. However, it was found that they are different in the northeastern Arabian Sea. At this site, the characteristic mode number was found to be 1 and the spectral slope was found to be 3. The modified model was validated against the measured sound speed profiles. In the first case, the first sound speed profile (TS) of the CTD yo-yo data (20 October 2002) was used for predicting the remaining profiles and compared them with observations. This was done to verify the model’s ability to predict high frequency case (TS profiles are measured at every 2.5min.). In the second case, during October 2004, TS profiles collected at every one-hour for 24 hours were used. This gives an idea of the model’s performance for the low frequency case. The variances of the measured and simulated sound speed profiles matched well in both cases with the modified GM model.

Orientador: Paulo Franchetti / Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Estudos da Linguagem / Made available in DSpace on 2018-08-04T04:26:01Z (GMT). No. of bitstreams: 1 Menezes_HugoLenes_D.pdf: 1049541 bytes, checksum: 6b243033c4f604b446e6b0a1e5021c28 (MD5) Previous issue date: 2005 / Resumo: O presente trabalho estuda as origens da prosa moderna em língua portuguesa, a emergência do gênero romance em terras lusas e, de modo mediato, o impacto do discurso prosístico de Almeida Garrett e Alexandre Herculano na narrativa lusófona subseqüente. Diferentemente do que dá a entender a tradição crítica, que privilegia somente algumas facetas da obra dos dois autores acima referidos, num campo valorativo especificamente literário, Garrett ocupa um lugar fundador não apenas por inaugurar a narrativa de atualidade em Portugal, e sim por ser um dos instauradores da prosa burguesa. Do mesmo modo, a importância de Herculano não pode reduzir-se ao fato de ele introduzir a ficção histórica no seu país, pois o seu papel, assim como o de Garrett, é decisivo na elaboração da prosa moderna em vernáculo. Outro ponto enfocado nesta tese é a constituição do público do romance, na primeira fase do romantismo lusitano, para o que Garrett e Herculano, acompanhando a valorização, ao longo dos séculos XVIII e XIX, da função educativa da forma romanesca, contribuíram com uma verdadeira pedagogia da leitura por meio da construção da narrativa ficcional / Abstract: The present work studies the origins of modern prose in the Portuguese language, the emergence of the novel as a genre in Lusitanian lands, and, as mediation, the impact of the discourse of Almeida Garrett and Alexandre Herculano on subsequent Lusiphone narrative. Differently from what comes to light in the critical tradition, which privileges only some facets of the oeuvre of the two above cited authors within a specifically evaluative literary field, Garrett occupies a founding place not only for inaugurating the narrative of the present time in Portugal, but also as one of the founders of the bourgeois prose. In a similar way, the importance of Herculano cannot be reduced to the fact that he introduces the historical fiction in his country, as he plays a decisive role, as well as Garrett, in the elaboration of modern prose in the vernacular. Another point focused on here is the creation of a reading public for the novel during the first phase of the Portuguese Romanticism, to which Garrett and Herculano, by means of the construction of fictional narrative, contribute a true pedagogy of reading, which accompanies the valorization of the educational function attributed to the Romanesque form throughout the eighteenth and the nineteenth centuries / Doutorado / Literatura Portuguesa / Doutor em Teoria e História Literária

In Portugal, as in other countries, a common characteristic of many of the novels published in the past twenty years is the recourse to a repertoire of literary devices that recall those of the historical novel.                 On the basis of critical studies published in the 1990’s, and in particular Fernández Prieto’s Poética de la Novela Histórica, this thesis undertakes a study of the Portuguese historical novel with the aim of defining, to the extent possible, the limits of this literary genre, and to examine in detail some of its intrinsic—and pertinent—semantic and pragmatic traits: the setting of a fictional narrative in the past, the introduction of historical persons and events and, not the least, the transtextual relationship between the fictional and the historiographic text.        Special attention is given to some of the more innovative forms of the contemporary historical novel, to highlight how by emphasising certain generic traits —that refer to the reader’s acquired knowledge— the author can compensate for the absence of others. Despite the inherent ”heterodoxy”, this device justifies grouping these novels under the general heading of the historical novel. The thesis explores the analogies between some of these innovative narrative strategies of the contemporary historical novel with transtextual practices characteristic of literature predating the 19th Century and by which a certain ”historical knowledge” is requisite for decoding the text. The thesis also establishes a set of generic traits that the historical novel shares with epic poetry. In light of these analogies, the thesis proposes a reading of Os Lusíadas as a historical poem. With this the author hopes to provide a contribution to a theory of historical fiction, understood as a genre encompassing, in addition to the novel, all forms of fictionalisation that rely on the historical discourse. © Mauro Cavaliere                                           ISBN  91-7265-442-2

Le mélange vertical dans l’océan contribue au maintien de la Cellule Méridienne de Circulation Océanique (MOC) en permettant le renouvellement des eaux profondes. Une coupe transverse d’une partie de la MOC est réalisée par la radiale hydrologique OVIDE qui a lieu tous les 2 ans depuis 2002 entre le Portugal et le Groenland. L’énergie nécessaire au mélange est fournie par les ondes internes générées par le vent et la marée, et des mesures de micro-structure (VMP) en 2008 montrent des valeurs de dissipation Evmp intensifiées dans la thermocline principale et au niveau des topographies. Notre étude se base sur ces observations pour étudier la fine-structure verticale de l’océan et estimer indirectement la dissipation E due aux ondes internes à l’aide de mesures CTD et LADCP. La comparaison au mesures du VMP permet d’optimiser la paramétrisation de E en encadrant les observations par facteur 3 et leurs valeurs moyennes à ±30%. L’application sur l’ensemble des données OVIDE permet d’obtenir une cartographie du mélange a travers le bassin. La distribution géographique de la diffusion verticale K est similaire le long des 5 sections, avec des valeurs de l’ordre de 10−4m2/s dans la thermocline principale, au fond et au niveau des topographies, et de l’ordre de 10−5m2/s dans l’océan intérieur. Des différences régionales sont présentes et K peut être localement proche de 10−3m2/s. L’étude de la section FOUREX 1997 révèle une intensification de K le long de la dorsale médio-Atlantique où les valeurs moyennes sont de 2 à 3 plus fortes que le long des sections OVIDE. La distribution spatiale des échelles de Thorpe LT est corrélée avec celle du mélange. Néanmoins la dissi-pation basée sur LT surestime Evmp d’un facteur 10 à100, ce qui pourrait être dû à une mauvaise représentation de la durée de vie de la turbulence dans l’océan. Certains mécanismes susceptibles de générer des ondes internes sont proposés. Des sites possibles de génération par la marée sont localisés à l’aide d’un modèle simple de la trajectoire des rayons d’ondes. Une corrélation possible entre les mouvements géostrophiques et les ondes internes est envisagée dans la thermocline principale. Enfin l’étude des angles de Turner montre que des instabilités de double-diffusion peuvent être présentes sur une grande partie de la section. / Vertical mixing in the ocean contributes to sustain the Meridionnal Overturning. Circulation (MOC) by allowing the renewal of deep waters. A section across the MOC is performed by the hydrological radial OVIDE repeated every two years between Portugal and Greenland since 2002. The energy required for mixing is provided by internal waves generated by wind and tides and micro-structure measurements(VMP) in 2008 show intensified values of dissipation Evmp in the main thermocline and near topographies. Our study is based on these observations and aims tostudy the vertical fine-scale structure of the ocean. Estimates of the dissipation E due to internal waves are made with CTD and LADCP measurements. The comparison with VMP measurements allow us to optimize the parameterization of E by framing the observations by factor 3 and their mean values at ±30%. The systematic application to the OVIDE dataset provides a mapping of the mixing across the basin. Geographical distribution of the vertical diffusion K is similar along the five sections, with values near10−4m2/s in the main thermocline and at the bottom of topographies, and near 10−5m2/s in the ocean interior. Regional differences are present and K can belocally close to 10−3m2/s. Application to FOUREX1997 datas et reveals an increase of K along the Mid-Atlantic Ridge, where the average values are 2 to 3stronger than along OVIDE sections. The spatial distribution of Thorpe scales LT appears to be correlated with internal waves mixing patterns. Nevertheless dissipation estimates based on LT overestimates Evmp by a 10 to 100 factor, which maybe due to misrepresentation of the stage of turbulence development in the ocean. Some mechanisms that can generate internal waves are proposed. Probable sites where tidal generation could occur are located using a simple model of wave beam trajectory. A possible correlation between geostrophic flows and internal waves is considered in the main thermocline. Finally the study of Turnerangles shows that double-diffusion instabilities may bepresent over a large part of the section.