As autonomous vehicles (AVs) evolve, ensuring their safety extends beyond traditional met- rics. While current nominal safety scores focus on the timeliness of AV responses like latency or instantaneous response time, this paper proposes expanding the concept to include spatial configurations formed by obstacles with respect to the ego-vehicle. By analyzing these spatial relationships, including proximity, density and arrangement, this research aims to demon- strate how these factors influence the safety force field around the AV. The goal is to show that beyond meeting Responsibility-Sensitive Safety (RSS) metrics, spatial configurations significantly impact the safety force field, particularly affecting path planning capability. High spatial occupancy of obstacle configurations can impede easy maneuverability, thus challenging safety-critical modules like path planning. This paper aims to capture this by proposing a safety score that leverages the ability of modern computer vision techniques, par- ticularly image segmentation models, to capture high and low levels of spatial and contextual information. By enhancing the scope of nominal safety to include such spatial analysis, this research aims to broaden the understanding of drivable space and enable AV designers to evaluate path planning algorithms based on spatial configuration centric safety levels. / Master of Science / As self-driving cars become more common, ensuring their safety is crucial. While current safety measures focus on how quickly these cars can react to dangers, this paper suggests that understanding the spatial relationships between the car and obstacles is just as important, and needs to be explored further. Prior metrics use velocity and acceleration of all the actors, to determine the safe-distance of obstacles from the vehicle, and determine how fast the car should react before a predicted collision. This paper aims to extend the scope of how safety is viewed during normal operating conditions of the vehicle by considering the arrangement of obstacles around it as an influencing factor to safety. By using advanced computer vision techniques, particularly models that can understand images in detail, this research proposes a new spatial safety metric. This score considers how well the car navigates through dense environments by understanding the spatial configurations that obstacles form. By studying these factors, I wish to introduce a metric that improves how self-driving cars are designed to navigate and path plan safely on the roads.

Ce mémoire présente une étude de la morphologie de ce qui est généralement appelé le pluriel nominal du persan (parler de Téhéran) dans le cadre d’une théorie de la morphologie basée sur le mot : Whole Word Morphology, développée par Ford et Singh (1991). Ce modèle lexicaliste adopte une position plus forte que les modèles proposés par Aronoff (1976) et Anderson (1992) en n’admettant aucune opération morphologique sur des unités plus petites que le mot. Selon cette théorie, une description morphologique consiste en l’énumération des Stratégies de Formation de Mots (SFM), licencées chacunes par au moins deux paires de mots ayant la même covariation formelle et sémantique. Tous les SFM suit le même schéma. Nous avons répertorié 49 SFM regroupant les pluriels et les collectifs. Nous constatons qu’il est difficile de saisir le pluriel nominal du persan en tant que catégorie syntaxique et que les différentes « marques du pluriel » présentées dans la littérature ne constituent pas un ensemble homogène : elles partagent toutes un sens de pluralité qui cependant varie d’une interprétation référentielle à une interprétation collective non-référentielle. Cette étude vise la déscription de la compétence morphologique, ce qui ne dépend d’aucune considération extralinguistique. Nous argumentons notamment contre la dichotomie arabe/persan généralement admise dans la littérature. Nous avons également fourni des explications quant à la production des pluriels doubles et avons discuté de la variation supposée du fait d’un choix multiple de « marques du pluriel ». / This thesis presents a word-based study of what is generally called the nominal plural morphology of Persian (Tehrani dialect) within the framework of the Whole Word Morphology developed by Ford & Singh (1991). This lexicaliste model takes up a stronger position than that proposed by Aronoff (1976) and Anderson (1992), by not allowing any morphological operation on units smaller than the word. According to this theory a morphological description consist of the listing of the Word Formation Strategies (WFS), each licensed by at least two pairs of words having the same formal and semantic covariation. All WFS’s follow the same schema. We have listed 49 WFS’s of plurals and collectives. We note that it is difficult to understand the import of the plural nominal as a syntactic category in Persian and that different “marks of plural” presented in the literature do not make a homogeneous unity: they all share a plurality meaning but it varies from referential interpretation to collective and non-referential interpretation. This study’s aim is to describe the morphological competence, which does not depend on any extra-linguistic criteria. In particular, we argue against the generally admitted Arabic/Persian dichotomy. We also provide explanation with regards to the utterance of double plurals and to the variation assumed since more than one choice of “plural marks” are available.

Les constructions à verbe support et les constructions à prédicat composé ont été longuement étudiées, mais de façon indépendante dans la linguistique française et anglo-saxonne. En se basant sur le courant du Lexique-Grammaire, cette thèse a visé de répondre à la lacune dans les langues africaines, des études sur des constructions similaires dans lesquelles le verbe est sémantiquement vague et dont la force prédicative repose principalement sur nom. Cette thèse comprend aussi une étude comparative entre les langues des familles différentes pour valider la notion d’universalité de ce type de verbes qui sont dénommés les verbes supports dans le courant dont nous nous basons. En effet notre recherche à démontré que les verbes délexicalisés et désemantisés actualisent des nominaux gérondifs prédicatifs dans la langue éwé, une langue Kwa de la famille Nigéro-congolaise pour laquelle il n’existait pas d’études préalables à ce sujet. D’ailleurs, une étude comparative nous a aussi révélé que les constructions à verbe support en français partagent certaines propriétés syntaxico-sémantiques avec des constructions à prédicat composé en anglais et des constructions à nominal gérondif en éwé telles que la réduction du verbe support et sa reconstructibilité par le biais d’une proposition relative. Les trois langues ont aussi partagé la propriété de certains verbes actualisateurs fonctionnant comme des agents de nominalisation. Cependant, il existe aussi des différences au niveau des constructions. L’une des différences est le fait que la détermination du nom joue un rôle important dans les constructions à verbe support en français et les constructions à prédicat composé en anglais alors que la détermination n’est pas un enjeu important dans la construction à nominal gérondif. D’autres différences qui sont ressorties de notre thèse étaient les différences dans le nombre et la fréquence des constructions à verbe support dans les trois langues ainsi que les différences dans les relations d’interdépendance des éléments différents des constructions étudiées dans les trois langues. En général, l’anglais et le français semblaient très proches et il y avait peu des distinctions syntaxico-sémantiques. Par contre, l’éwé montrait plus de différences – ce qui est un argument en faveur de l’existence de grammaires locales différenciées selon les langues comme le suggère le cadre du Lexique-Grammaire.Cependant, il existe aussi des différences au niveau des constructions. L’une des différences est le fait que la détermination joue un rôle important dans les constructions à verbe support en anglais et en français alors que la détermination n’est pas un enjeu important dans la construction à support en éwé. D’autres différences qui sont ressorties de notre thèse étaient les différences dans le nombre et la fréquence des constructions à verbe support dans les trois langues ainsi que les différences dans les relations d’interdépendance des éléments différents des CVS dans les trois langues. En général, l’anglais et le français semblaient très proches et il y avait peu des distinctions syntaxico-sémantiques. Par contre, l’éwé montrait plus de différences – ce qui est un argument en faveur de l’existence de grammaires locales différenciées selon les langues comme le suggère le cadre du Lexique-Grammaire. / Support verbs have been studied to a great extent in the Lexicon-Grammar framework. This thesis aims at filling the gap of studies of support verb constructions in African languages, as well as that of comparative studies among languages of different families in order to validate the notion of the universality of support verbs. Indeed our research has demonstrated that support verbs do exist in Ewe, a Kwa language of the Niger-Congo family for which there had been no prior study of this notion. Moreover, a comparative study also revealed to us that support verb constructions in English, French and Ewe share certain syntax-semantic properties such as the reduction of the support verbe and its reconstruction through a relative clause. The three languages also shared the property of support verbs being agents of nominalization. However, there are also differences in these constructions. One of the differences is the fact that determination plays an important role in support verb constructions in English and French. However, determination is not an important factor in support verb constructions in Ewe. Other differences that were reflected in our thesis include the differences in number and frequency of support verb constructions (SVCs) in the tree languages, as well as differences in the interdependency links among the various elements of SVCs in the three languages. On the whole, English and French seem linguistically close and there were few syntax-semantic differences. On the other hand, Ewe displayed more differences – which supports the concept of different language-specific local grammars suggested by the Lexical-Grammar framework.

Esta pesquisa apresenta análises sobre avaliação, produção e percepção linguística no português paulistano, por meio do exame de quatro variáveis sociolinguísticas: a realização de /e/ nasal como monotongo [e] ou ditongo [ej] (como em fazenda); a pronúncia de /r/ em coda silábica como tepe [R] ou retroflexo [õ] (como em porta); a concordância nominal de número (como em as casas/as casa); e a concordância verbal de primeira e de terceira pessoa do plural (como em nós fomos/nós foi, eles foram/eles foi). O objetivo central é analisar, em uma comunidade amplamente heterogênea de um ponto de vista sociodemográfico, as inter-relações entre a expressão de identidades sociais através de usos linguísticos e a possível influência dos significados sociais desses usos em processos de variação e mudança linguística. Para tanto, analisou-se qualitativa e quantitativamente uma amostra contemporânea do português paulistano, composta de 118 entrevistas sociolinguísticas com falantes nativos, à luz dos pressupostos teórico-metodológicos da Sociolinguística Variacionista (Labov, 2006 [1966], 2008 [1972]). Tais análises compreendem o encaixamento linguístico e social de cada variável, bem como seu encaixamento simultâneo na fala de cada indivíduo. Além disso, examinaram-se percepções sobre as variantes de (-r), com base na técnica de estímulos pareados (Lambert et al., 1960), a fim de melhor compreender os mecanismos subjacentes à associação de certos significados sociais ao emprego de diferentes formas linguísticas. Os resultados mostram que, embora as correlações entre as quatro variáveis sociolinguísticas e variáveis sociais sejam bastante semelhantes entre si (todas se correlacionam com o Sexo/Gênero, a Classe Social e o Nível de Escolaridade dos falantes), há diferentes tendências dentro da comunidade por exemplo, mudança em direção à variante ditongada [ej]; padrões divergentes quanto ao emprego de (-r) por parte de jovens de diferentes classes sociais; variação estável das concordâncias nominal e verbal em regiões periféricas e mudança em direção à variante padrão em regiões centrais. Para compreendê-los, o exame de seus significados sociais é fundamental. Argumenta-se que [ej] tem se difundido rápida e unidirecionalmente pelo fato de se constituir um marcador (Labov, 2008 [1972]) para paulistanos, que não revelam ter consciência da variável, tampouco apresentam um discurso metalinguístico sobre suas variantes. O forte favorecimento do retroflexo entre jovens de classes baixas foi desencadeado por uma reinterpretação de seu significado social como uma variante local e de prestígio, devido à presença maciça de migrantes do Norte/Nordeste, cuja variante fricativa é relativamente mais estigmatizada na comunidade. Ao mesmo tempo, ainda que o encaixamento social das concordâncias nominal e verbal seja bastante semelhante, a marca zero de concordância nominal (as casa) goza de maior vitalidade por indexicalizar significados como masculinidade, paulistanidade e morador da Mooca. Não obstante as diferentes tendências que se verificam na comunidade, os padrões de encaixamento das variáveis linguísticas se reproduzem sistematicamente na fala de cada indivíduo, o que permite caracterizar os paulistanos como uma única comunidade de fala (Labov, 2006 [1966]), que compartilha normas de produção e de avaliação linguística. De acordo com o teste de percepções, os moradores da cidade também são consistentes em suas reações subjetivas a variantes de (-r). Demonstra-se adicionalmente que a coesão dialetal é promovida não por amplas categorias sociais como Sexo/Gênero ou Faixas Etárias, mas pelo princípio mais fundamental de densidade de comunicação (Gumperz, 1971b,a). / This study examines linguistic evaluation, production, and perception in São Paulo Portuguese, through analyses of four sociolinguistic variables: the realization of nasal /e/ as a monophthong [e] or as a diphthong [ej] (as in fazenda farm); the realization of coda /r/ as a tap [R] or as a retroflex [õ] (as in porta door); nominal number agreement (as in as casas/as casa the houses); and first person plural and third person plural verb agreement (as in nós fomos/nós foi we went, eles foram/eles foi they went). The main goal is to investigate the inter-relation between the expression of social identities through language uses and the possible impact of social meanings on processes of language variation and change, in a highly diverse and heterogeneous community. Based on the theory and methods of Variationist Sociolinguistics (Labov, 2006 [1966], 2008 [1972]), each variables linguistic and social embedding, as well as their simultaneous embedding in individual speakers speech, were analyzed both qualitatively and quantitatively in 118 sociolinguistic interviews with native Paulistano speakers. In addition, perceptions on the variants of (-r) were examined through an experiment using the Matched Guise Technique (Lambert et al., 1960), aimed at describing the mechanisms underlying the association of certain social meanings with different language forms. The results show that, in spite of the similarity between the social embedding of the four variables (all of them are correlated with speakers sex/gender, social class, and level of education), there are different trends within the community for instance, change towards (e) diphthongization; divergent patterns regarding (-r) in the speech of younger speakers of different social classes; stable variation in nominal and verbal agreement in peripheral areas but change towards the prestige variant in central areas. The explanation for these patterns is related to the variants social meanings. It is argued that [ej] has spread rapidly and unidirectionally because it is a marker (Labov, 2008 [1972]) for Paulistanos, who are not aware of the variable and do not present an elaborate metalinguistic discourse on its variants. The fact that retroflex /r/ is strongly favored by working class youth may be attributed to a reinterpretation of its social meaning, due to the extensive presence of migrants from the Northern and Northeastern regions of the country, whose /r/ realization as a fricative is relatively more stigmatized in the community. At the same time, although nominal and verbal agreement are very similarly stratified, the nonstandard variant of the former (as casa the houses) exhibits greater vitality as it indexes masculinities and local identities with the city and with Mooca, one of its most traditional neighborhoods. Despite different trends by different social groups in the community, the embedding of the linguistic variables is systematically reproduced in each speakers speech, which allows for the characterization of São Paulo as a single speech community (Labov, 2006 [1966]) in that its native speakers share norms of use and evaluation of the variants. According to the perception test, the city inhabitants are also consistent in their subjective reactions to the variants of (-r). It is shown that such social cohesion is promoted not by census social categories such as sex/gender or age, but by the more fundamental principle of density of communication (Gumperz, 1971b,a).

Made available in DSpace on 2016-04-28T18:23:29Z (GMT). No. of bitstreams: 1 Marcelo Saparas.pdf: 680825 bytes, checksum: 7a65aba86161bc4131bd921e10505fbd (MD5) Previous issue date: 2007-05-15 / This research examines the structure of the nominal group (NG) found within the Rheme in distinguished discourse genres, namely academic writing, movie review and opinion article. The NG has not been the object of many studies, and besides, it has been studied within isolated sentences and, in general, in sentences inauthentically constructed. However, there is no consensus, among researchers, neither on the function, nor on the order of its constituents. There are many factors that influence the constitution of the structure of the NG, among which the influence on the type of genre, according to Bathia´s and Whitaker´s researches in 1991 and 1995, respectively. I attempt, in this research, to: (a) examine authentic texts and not just isolated sentences, as it has been done, since the literature shows us that the structure of the NG involves textual concepts as those of Theme and Rheme, which, by extension, as we will see, are overlaid with informational issues of Given and New. I attempt, therefore, to relate the NG with the communicative dynamism to examine to what extent the constitution of the structure of the NG reflect off this dynamism. This way will lead us to consider the question of ensuring effective communication flow , through the notion of communicative dynamism, that increases, in most cases, from the Theme to the Rheme, according to Firbas (1974). Nevertheless, despite the fact that this research examines the Rheme, one has to take the Theme into account, seeing that; according to Halliday, quoted by Fries (2002), Rheme is all in the clause but the Theme . Here we run into a problem: it is known that the definition of Theme has aroused polemics. I must clarify that this research is conducted on the study of the NG within the Rheme, since this position is generally taken by the information newness, fact which marks it by a higher degree of communicative dynamism, and also because, although it occupies a crucial role in the discourse, little has been researched about it. This being the case, the objective of this research is to examine, in authentic texts, in three different discourse genres, the constitution of the NG in the Rheme, to find out how this structure is characterized in order to fulfill its function within the Rheme, in other words, the function of increasing the communicative dynamism. Thus, it is basically supported by the Systemic Functional Linguistics and by the Functional Sentence Perspective. Numerical data, in terms of clauses and adjuncts, will show the lexico-grammatical elements that constitute the NGs of the Rheme. Therefore, the data seem to indicate that the communicative dynamism makes use of attributes and the simple constitution of the greater part of the NGs in this process. A noteworthy fact is the widespread occurrence of definite articles in places that serve to convey new information, the Rheme. There are rare occurrences of noun clauses and adjectives in pre-head positions within the NG. The role of the circumstances is also important in this context, for it seems to contribute to explain the way the event occur, in space and time determined by it. There are occurrences of comparisons with the preposition como ( like ), to explain through comparisons the content that is hardest to learn / Este trabalho examina a estrutura do grupo nominal (GN) que ocorre no Rema em gêneros discursivos distintos, a saber: escrita acadêmica, crítica de cinema e artigo de opinião. O GN não tem sido alvo de muitos estudos, e além disso, tem sido estudado em sentenças isoladas e, em geral, em sentenças artificialmente construídas. Por outro lado, não há consenso entre os pesquisadores sobre a função, nem sobre a ordem de seus constituintes. Há muitos fatores que influem na constituição da estrutura do GN, dentre os quais a influência do tipo de gênero, conforme pesquisa de Bathia (1991) e Whittaker (1995). Tento nesta pesquisa: (a) examinar textos naturais e não apenas sentenças isoladas, como tem sido feito, já que a literatura nos mostra que a estrutura do GN envolve conceitos textuais como os de Tema e Rema, os quais, por extensão, como veremos, se sobrepõem a questões informacionais de Dado e Novo. Tento, portanto, relacionar o GN com a dinâmica da comunicação para verificar em que medida a constituição da estrutura do GN reflete dessa dinâmica. Esse caminho nos levará a considerar a questão de levar a comunicação para frente , através da noção de dinamismo comunicativo, que aumenta, na maioria dos casos, do Tema para o Rema, segundo Firbas (1974). Por outro lado, embora a pesquisa examine o Rema, não se pode deixar de considerar o Tema, já que, segundo Halliday, citado por Fries (2002), Rema é tudo na oração menos o Tema . Aqui enfrentamos um problema, pois a definição de Tema tem levantado muita polêmica, como se sabe. Devo esclarecer que esta pesquisa se concentra no exame do GN do Rema, já que esta posição é em geral ocupada pela novidade da informação, o que a reveste de maior grau de dinamismo comunicativo, e também porque, embora exerça esse papel primordial no discurso, pouco se tem pesquisado a seu respeito. Assim sendo, o objetivo desta pesquisa é examinar, em textos naturais, em três diferentes gêneros discursivos, a constituição estrutural do GN do Rema, para verificar como se caracteriza essa estrutura para cumprir sua função no Rema, ou seja, de aumentar o dinamismo comunicativo. Para tanto, apóia-se, basicamente, na Lingüística Sistêmico-Funcional e na Perspectiva Funcional da Sentença. Dados numéricos, em termos de oração e adjuntos, mostrarão os elementos léxico-gramaticais que constituem os GNs do Rema. Portanto, os dados parecem indicar que o dinamismo comunicativo, vale-se de orações subordinadas e dos atributivos (oração adjetiva, adjunto adnominal e predicativo) nesse processo, bem como da constituição simples da maior parte dos GNs. Excetuando-se a escrita acadêmica, os dois outros gêneros (artigo de opinião e crítica de cinema) apresentam GNs constituídos de dêitico + núcleo + atributo, o que me surpreendeu dado que era de se esperar que a escrita nos gêneros examinados apresentasse GNs complexos. Fato notável é a ocorrência maciça de artigos definidos em ambiente que serve para veicular informação nova, o Rema. Há ocorrência mínima de orações substantivas, bem como de adjetivos em posição pré-núcleo do GN. O papel das circunstâncias é também importante nesse contexto, pois parece concorrer para explicar o modo como os eventos se realizam, num tempo e num espaço também determinados por elas. Há ocorrência de comparações, com a ocorrência da preposição como , para explicar através de comparações o conteúdo mais difícil de apreender

O presente trabalho objetiva, a partir de dados coletados dos motores elétricos em regime de trabalho, dar sua contribuição ao estudo de conservação de energia elétrica numa planta industrial. Apresenta-se o motor elétrico trifásico de indução e as diversas questões relativas ao seu uso industrial, para então, demonstrarem os parâmetros elétricos obtidos. Elaborou-se um trabalho de campo, que possibilita à análise da eficiência energética no uso de motores elétricos em uma fábrica de papel e cosméticos. A partir de medidas dos parâmetros elétricos como: corrente e tensão, mais os dados de catálogos do fabricante, chegaram-se aos valores de rendimento, fator de potência e fator de utilização, para diversas condições de carga dos motores. Caso o fator de utilização seja inferior a 75%, um estudo comparativo permitirá as decisões de substituição dos motores super dimensionados. Os dados são usados para as seguintes análises: qual a possível conservação de energia elétrica para cada setor, se os motores fossem substituídos por unidades de alto rendimento?; qual a viabilidade de cada setor realizar as trocas imediatas por motores de alto rendimento?; qual à economia de energia elétrica por setores em (R$/dia), utilizando motores de alto rendimento?; em quanto tempo obteríamos o retorno desse investimento? Alguns recursos de informática foram utilizados nos cálculos realizados. Os resultados indicam que o potencial de conservação de energia elétrica em motores deve ser melhor explorado e de forma mais consciente. / The objective of the present research, from a data set of electric motor collected in a regimen of work, give its contribution to the study on industrial electrical motors’ energy saving. It present the three-phase induction motor, the various issues of its industrial use and the electric parameter set collected are then presented. Field of work was elaborated, wich allowed the analysis of the energy efficiency in the use of electric engines in industry of paper and cosmetics. Given the measurements of current and tension, plus the data from the manufacter’s catalogs, values of efficiency were obtained, power factor and utilization factor, for diverse conditions of engine load. But in case the utilization factor is less than 75%, a comparative study allowed the decisions of substitution of the poorly dimensioned engines. The data are analyzed in ways: 1)What would be the energy save to each sector, if motors were changed for high efficient units? 2)What would be the viable to each sector to replace immediately the existing motors for high efficient? 3)What would be the energy save to each sector in (R$/day), using high efficient motors? 4)How much time would be the return of the investiment?. Some resources of computer technology were used in the calculations. The results showing the electric energy saving potential in motor would be better use to advantage and more conscientions form.

La présente étude s’inscrit dans le cadre plus vaste de la description des langues de l’aire linguistique Amdo. Cette région est caractérisée par la présence de langues sinitiques, mongoliques, tibétiques et turciques et, pour le salar et le tibétain, une situation de contact linguistique long d’environ sept siècles. Le salar est l’une des langues turciques les moins décrites et elle présente de nombreuses particularités dues à son isolement par rapport aux autres langues turciques. Il n’existe pas non plus de description des variétés de tibétain parlées dans la région salarophone, périphérique dans la tibétosphère. La perspective que nous adoptons ici est donc à la fois descriptive et comparative. Après un exposé des caractéristiques historiques et sociolinguistiques de cette situation de contact, nous analysons de façon détaillée des catégories grammaticales indexées dans le syntagme nominal et dans le prédicat. En particulier, nous proposons une nouvelle analyse des morphèmes de Temps-Aspect-Mode en salar et montrons que cette langue a copié en partie ses catégories évidentielles sur le modèle de celles du tibétain de l’Amdo. Nous nous intéressons ensuite aux problématiques liées à la valence verbale et aux effets du contact linguistique sur l’organisation accusative et ergative qui caractérisent respectivement le salar et le tibétain de l’Amdo. Nous analysons les marques casuelles à la fois comme relateurs, au sein du prédicat verbal, mais également comme converbe ou au sein des formes converbiales. Enfin, nous décrivons les catégories de voix grammaticalisées en salar et en tibétain, et montrons que celles-ci sont quasiment identiques dans les deux langues. / This study falls within the larger description of the languages of the Amdo linguistic area. This area is characterized by the coexistence of Sinitic, Mongolic, Tibetic and Turkic languages, and, regarding Salar and Tibetan, an approximately seven-century-long contact situation. Salar language remains one of the less described Turkic languages and, because of its isolation from the other Turkic languages, displays many specificities. There exists no description of the Amdo-Tibetan variety spoken in the Salar-speaking region either, this region being very peripheral in the Tibetosphere. The perspective taken in this study is thus both descriptive and comparative. After a depiction of the historical and sociolinguistic characteristics of this contact-situation, we analyse in detail the grammatical categories indexed in the nominal phrase and in the predicate. Notably, we suggest a new analysis of the Tense-Aspect-Mood morphemes in Salar and we show that the Amdo-Tibetan evidential categories have been partly copied in Salar. Then, the question of verb valency is addressed, and the effects of language contact on the Turkic accusative and on the Tibetic ergative organisation are explored. We analyze the case markers not only as markers of syntactic dependancy within the verb predicate, but also in their role as or in converbs. Finally, we describe the grammatical voices attested in Salar and in Amdo Tibetan, and show that the syntactic and semantic characteristics are almost identical in the two languages.

Esta pesquisa apresenta análises sobre avaliação, produção e percepção linguística no português paulistano, por meio do exame de quatro variáveis sociolinguísticas: a realização de /e/ nasal como monotongo [e] ou ditongo [ej] (como em fazenda); a pronúncia de /r/ em coda silábica como tepe [R] ou retroflexo [õ] (como em porta); a concordância nominal de número (como em as casas/as casa); e a concordância verbal de primeira e de terceira pessoa do plural (como em nós fomos/nós foi, eles foram/eles foi). O objetivo central é analisar, em uma comunidade amplamente heterogênea de um ponto de vista sociodemográfico, as inter-relações entre a expressão de identidades sociais através de usos linguísticos e a possível influência dos significados sociais desses usos em processos de variação e mudança linguística. Para tanto, analisou-se qualitativa e quantitativamente uma amostra contemporânea do português paulistano, composta de 118 entrevistas sociolinguísticas com falantes nativos, à luz dos pressupostos teórico-metodológicos da Sociolinguística Variacionista (Labov, 2006 [1966], 2008 [1972]). Tais análises compreendem o encaixamento linguístico e social de cada variável, bem como seu encaixamento simultâneo na fala de cada indivíduo. Além disso, examinaram-se percepções sobre as variantes de (-r), com base na técnica de estímulos pareados (Lambert et al., 1960), a fim de melhor compreender os mecanismos subjacentes à associação de certos significados sociais ao emprego de diferentes formas linguísticas. Os resultados mostram que, embora as correlações entre as quatro variáveis sociolinguísticas e variáveis sociais sejam bastante semelhantes entre si (todas se correlacionam com o Sexo/Gênero, a Classe Social e o Nível de Escolaridade dos falantes), há diferentes tendências dentro da comunidade por exemplo, mudança em direção à variante ditongada [ej]; padrões divergentes quanto ao emprego de (-r) por parte de jovens de diferentes classes sociais; variação estável das concordâncias nominal e verbal em regiões periféricas e mudança em direção à variante padrão em regiões centrais. Para compreendê-los, o exame de seus significados sociais é fundamental. Argumenta-se que [ej] tem se difundido rápida e unidirecionalmente pelo fato de se constituir um marcador (Labov, 2008 [1972]) para paulistanos, que não revelam ter consciência da variável, tampouco apresentam um discurso metalinguístico sobre suas variantes. O forte favorecimento do retroflexo entre jovens de classes baixas foi desencadeado por uma reinterpretação de seu significado social como uma variante local e de prestígio, devido à presença maciça de migrantes do Norte/Nordeste, cuja variante fricativa é relativamente mais estigmatizada na comunidade. Ao mesmo tempo, ainda que o encaixamento social das concordâncias nominal e verbal seja bastante semelhante, a marca zero de concordância nominal (as casa) goza de maior vitalidade por indexicalizar significados como masculinidade, paulistanidade e morador da Mooca. Não obstante as diferentes tendências que se verificam na comunidade, os padrões de encaixamento das variáveis linguísticas se reproduzem sistematicamente na fala de cada indivíduo, o que permite caracterizar os paulistanos como uma única comunidade de fala (Labov, 2006 [1966]), que compartilha normas de produção e de avaliação linguística. De acordo com o teste de percepções, os moradores da cidade também são consistentes em suas reações subjetivas a variantes de (-r). Demonstra-se adicionalmente que a coesão dialetal é promovida não por amplas categorias sociais como Sexo/Gênero ou Faixas Etárias, mas pelo princípio mais fundamental de densidade de comunicação (Gumperz, 1971b,a). / This study examines linguistic evaluation, production, and perception in São Paulo Portuguese, through analyses of four sociolinguistic variables: the realization of nasal /e/ as a monophthong [e] or as a diphthong [ej] (as in fazenda farm); the realization of coda /r/ as a tap [R] or as a retroflex [õ] (as in porta door); nominal number agreement (as in as casas/as casa the houses); and first person plural and third person plural verb agreement (as in nós fomos/nós foi we went, eles foram/eles foi they went). The main goal is to investigate the inter-relation between the expression of social identities through language uses and the possible impact of social meanings on processes of language variation and change, in a highly diverse and heterogeneous community. Based on the theory and methods of Variationist Sociolinguistics (Labov, 2006 [1966], 2008 [1972]), each variables linguistic and social embedding, as well as their simultaneous embedding in individual speakers speech, were analyzed both qualitatively and quantitatively in 118 sociolinguistic interviews with native Paulistano speakers. In addition, perceptions on the variants of (-r) were examined through an experiment using the Matched Guise Technique (Lambert et al., 1960), aimed at describing the mechanisms underlying the association of certain social meanings with different language forms. The results show that, in spite of the similarity between the social embedding of the four variables (all of them are correlated with speakers sex/gender, social class, and level of education), there are different trends within the community for instance, change towards (e) diphthongization; divergent patterns regarding (-r) in the speech of younger speakers of different social classes; stable variation in nominal and verbal agreement in peripheral areas but change towards the prestige variant in central areas. The explanation for these patterns is related to the variants social meanings. It is argued that [ej] has spread rapidly and unidirectionally because it is a marker (Labov, 2008 [1972]) for Paulistanos, who are not aware of the variable and do not present an elaborate metalinguistic discourse on its variants. The fact that retroflex /r/ is strongly favored by working class youth may be attributed to a reinterpretation of its social meaning, due to the extensive presence of migrants from the Northern and Northeastern regions of the country, whose /r/ realization as a fricative is relatively more stigmatized in the community. At the same time, although nominal and verbal agreement are very similarly stratified, the nonstandard variant of the former (as casa the houses) exhibits greater vitality as it indexes masculinities and local identities with the city and with Mooca, one of its most traditional neighborhoods. Despite different trends by different social groups in the community, the embedding of the linguistic variables is systematically reproduced in each speakers speech, which allows for the characterization of São Paulo as a single speech community (Labov, 2006 [1966]) in that its native speakers share norms of use and evaluation of the variants. According to the perception test, the city inhabitants are also consistent in their subjective reactions to the variants of (-r). It is shown that such social cohesion is promoted not by census social categories such as sex/gender or age, but by the more fundamental principle of density of communication (Gumperz, 1971b,a).

O presente trabalho objetiva, a partir de dados coletados dos motores elétricos em regime de trabalho, dar sua contribuição ao estudo de conservação de energia elétrica numa planta industrial. Apresenta-se o motor elétrico trifásico de indução e as diversas questões relativas ao seu uso industrial, para então, demonstrarem os parâmetros elétricos obtidos. Elaborou-se um trabalho de campo, que possibilita à análise da eficiência energética no uso de motores elétricos em uma fábrica de papel e cosméticos. A partir de medidas dos parâmetros elétricos como: corrente e tensão, mais os dados de catálogos do fabricante, chegaram-se aos valores de rendimento, fator de potência e fator de utilização, para diversas condições de carga dos motores. Caso o fator de utilização seja inferior a 75%, um estudo comparativo permitirá as decisões de substituição dos motores super dimensionados. Os dados são usados para as seguintes análises: qual a possível conservação de energia elétrica para cada setor, se os motores fossem substituídos por unidades de alto rendimento?; qual a viabilidade de cada setor realizar as trocas imediatas por motores de alto rendimento?; qual à economia de energia elétrica por setores em (R$/dia), utilizando motores de alto rendimento?; em quanto tempo obteríamos o retorno desse investimento? Alguns recursos de informática foram utilizados nos cálculos realizados. Os resultados indicam que o potencial de conservação de energia elétrica em motores deve ser melhor explorado e de forma mais consciente. / The objective of the present research, from a data set of electric motor collected in a regimen of work, give its contribution to the study on industrial electrical motors’ energy saving. It present the three-phase induction motor, the various issues of its industrial use and the electric parameter set collected are then presented. Field of work was elaborated, wich allowed the analysis of the energy efficiency in the use of electric engines in industry of paper and cosmetics. Given the measurements of current and tension, plus the data from the manufacter’s catalogs, values of efficiency were obtained, power factor and utilization factor, for diverse conditions of engine load. But in case the utilization factor is less than 75%, a comparative study allowed the decisions of substitution of the poorly dimensioned engines. The data are analyzed in ways: 1)What would be the energy save to each sector, if motors were changed for high efficient units? 2)What would be the viable to each sector to replace immediately the existing motors for high efficient? 3)What would be the energy save to each sector in (R$/day), using high efficient motors? 4)How much time would be the return of the investiment?. Some resources of computer technology were used in the calculations. The results showing the electric energy saving potential in motor would be better use to advantage and more conscientions form.

Ce mémoire présente une étude de la morphologie de ce qui est généralement appelé le pluriel nominal du persan (parler de Téhéran) dans le cadre d’une théorie de la morphologie basée sur le mot : Whole Word Morphology, développée par Ford et Singh (1991). Ce modèle lexicaliste adopte une position plus forte que les modèles proposés par Aronoff (1976) et Anderson (1992) en n’admettant aucune opération morphologique sur des unités plus petites que le mot. Selon cette théorie, une description morphologique consiste en l’énumération des Stratégies de Formation de Mots (SFM), licencées chacunes par au moins deux paires de mots ayant la même covariation formelle et sémantique. Tous les SFM suit le même schéma. Nous avons répertorié 49 SFM regroupant les pluriels et les collectifs. Nous constatons qu’il est difficile de saisir le pluriel nominal du persan en tant que catégorie syntaxique et que les différentes « marques du pluriel » présentées dans la littérature ne constituent pas un ensemble homogène : elles partagent toutes un sens de pluralité qui cependant varie d’une interprétation référentielle à une interprétation collective non-référentielle. Cette étude vise la déscription de la compétence morphologique, ce qui ne dépend d’aucune considération extralinguistique. Nous argumentons notamment contre la dichotomie arabe/persan généralement admise dans la littérature. Nous avons également fourni des explications quant à la production des pluriels doubles et avons discuté de la variation supposée du fait d’un choix multiple de « marques du pluriel ». / This thesis presents a word-based study of what is generally called the nominal plural morphology of Persian (Tehrani dialect) within the framework of the Whole Word Morphology developed by Ford & Singh (1991). This lexicaliste model takes up a stronger position than that proposed by Aronoff (1976) and Anderson (1992), by not allowing any morphological operation on units smaller than the word. According to this theory a morphological description consist of the listing of the Word Formation Strategies (WFS), each licensed by at least two pairs of words having the same formal and semantic covariation. All WFS’s follow the same schema. We have listed 49 WFS’s of plurals and collectives. We note that it is difficult to understand the import of the plural nominal as a syntactic category in Persian and that different “marks of plural” presented in the literature do not make a homogeneous unity: they all share a plurality meaning but it varies from referential interpretation to collective and non-referential interpretation. This study’s aim is to describe the morphological competence, which does not depend on any extra-linguistic criteria. In particular, we argue against the generally admitted Arabic/Persian dichotomy. We also provide explanation with regards to the utterance of double plurals and to the variation assumed since more than one choice of “plural marks” are available.