Air Entrainment in the Turbulent Ship Hull Boundary Layer

Turbulent fluctuations in the vicinity of the water free surface along a flat, vertically oriented surface-piercing plate are studied experimentally using a laboratory-scale experiment. In this experiment, a meter-wide stainless steel belt travels horizontally in a loop around two rollers with vertically oriented axes, which are separated by 7.5 meters. This belt device is mounted inside a large water tank with the water level set just below the top edge of the belt. The belt, rollers, and supporting frame are contained within a sheet metal box to keep the device dry except for one 6-meter-long straight test section between rollers. The belt is launched from rest with an acceleration of up to 3-g in order to quickly reach steady state velocity. This creates a temporally evolving boundary layer analogous to the spatially evolving boundary layer created along a flat-sided ship moving at the same velocity, with a length equivalent to the length of belt that has passed the measurement region since the belt motion began. Surface profile measurements in planes normal to the belt surface are conducted using cinematic Laser Induced Fluorescence and quantitative surface profiles are extracted at each instant in time. Using these measurements, free surface fluctuations are examined and the propagation behavior of these free surface ripples is studied. It is found that free surface fluctuations are generated in a region close to the belt surface, where sub-surface velocity fluctuations influence the behavior of these free surface features. These rapidly-changing surface features close to the belt appear to lead to the generation of freely-propagating waves far from the belt, outside the influence of the boundary layer. Sub-surface PIV measurements are performed in order to study the modification of the boundary layer flow field due to the effects of the water free surface. Cinematic planar PIV measurements are performed in horizontal planes parallel to the free surface by imaging the flow from underneath the tank, providing streamwise and wall-normal velocity fields. Additional planar PIV experiments are performed in vertical planes parallel to the belt surface in order to study the bahvior of streamwise and vertical velocity fields. It is found that the boundary layer grows rapidly near the free surface, leading to an overall thicker boundary layer close to the surface. This rapid boundary layer growth appears to be linked to a process of free surface bursting, the sudden onset of free surface fluctuations. Cinematic white light movies are recorded from beneath the water surface in order to determine the onset location of air entrainment. In addition, qualitative observations of these processes are made in order to determine the mechanisms leading to air entrainment present in this flow.

A experiência artística das pessoas com deficiência visual em museus, teatros e cinemas : uma análise pragmaticista

Tese (doutorado)—Universidade de Brasília, Faculdade de Comunicação, Programa de Pós-Graduação em Comunicação, 2016.

SC REVENUE RULING #16-5

This ruling proclaims that charges paid by a customer for streaming television programs, movies, music, and other similar content are charges for communication services and are therefore subject to South Carolina sales and use tax whether paid for as part of a subscription service, per item, or per event.

Natal qual é a sua cara?: análise do perfil edilício da avenida Eng. Roberto Freire (Natal/RN) à luz da acessibilidade

This study focuses on the building ensemble of Avenida Roberto Freire, a main road in Natal, Brazil, as a material expression of the confluence of various factors among which the following may be emphasized: high level of accessibility due to urban spatial re-structuring and the growth of the real estate market, in view of the increasing number of consumers, who arrived in Natal within the last decades. The intense urban modification process that has been going on in Natal since at least the 1980s, has engendered the formation of long axial lines which express the expansion dynamics and some of the forces subjacent to it. Avenida Roberto Freire has been an iconic example of an urban thoroughfare where architecture becomes primarily a communication support that can be perceived by fast moving passers-by, what brings it close to the venturian concept of strip (Venturi at al, 1972). The building types that line the road not only respond to the dynamics in process but also contribute to intensify it, as they house a variety of uses which attract people and generate more movement. The dynamics is further strengthened by the action of the real estate business which benefits from the increase of highly accessible locations, and from the private and public investments and incentives to tourism that aim to insert this city into the globalized world. Although the intention of reconstituting part of the history of density increase on this avenue in a diachronical perspective was attempted within the limits of the available references and documentation, the central contribution of this study is to understand the relations between topological accessibility and the typological nature of the building ensemble. By observing the synchronic morphological frame resulting from the spatial configuration analysis pertinent to this avenue (cf. Hillier and Hanson,1984) and the inventory and classification of the building ensemble there existing, this study aims to understand how architecture responds to accessibility in view of the real estate pressure, boosted by a cosmopolitanizing process brought about by the continuous flow of foreign and Brazilian arrivals as visitors, temporary or permanent residents

Reabilitação arquitectctónica

Dissertação para obtenção do grau de Mestre em Arquitectura com especialização em Arquitectura de Interiores, apresentada na Universidade de Lisboa - Faculdade de Arquitectura.

Efectos y ambientes sonoros como herramientas del subtexto en una obra cinematográfica

Esta tesis tiene como objetivo analizar la relación del diseño de sonido cinematográfico con la creación del subtexto en las películas. Se ha procedido a deconstruir el diseño sonoro de una serie de secuencias de películas, para identificar sus diversos elementos –especialmente los efectos y ambientes- y comprender el aporte de estos a la creación del subtexto. Esta tesis realiza una indagación en la construcción sonora de las obras cinematográficas, especialmente de dos elementos: sonidos ambientales o ambientes y efectos de sonido. Estos dos elementos son utilizados comúnmente en la creación de las bandas sonoras, pero aquí se explora su capacidad de crear una relación particular con el espectador, para ayudarle a percibir el subtexto de la obra. La hipótesis que se propone demostrar o negar es que los efectos y ambientes, tienen la capacidad para crear sensaciones en el espectador al ser trabajadas al margen del plano consciente de la percepción sonora. Para hacer esta investigación se partió de una decodificación de varias secuencias de películas que han obtenido reconocimiento internacional por la calidad de su factura; posteriormente se contrastó este análisis con la lectura colectiva de los efectos y ambientes, mediante la realización de un grupo focal.

La literatura y el cine: una historia de relaciones

La literatura y el cine se relacionan en cuatro aspectos básicos: la literatura determina, en sus orígenes, la naturaleza de los filmes, sus motivos y estrategias; la literatura y el cine son formas narrativas, por lo que comparten estructuras míticas, populares y de relato; ambos se vinculan mediante el problema de la adaptación; y el cine ejerce una influencia estética en las obras literarias y en el concepto tradicional de literatura. Este artículo examina estos vínculos desde una perspectiva conceptual e histórica.Literature and cinema are related in four main aspects: in its origins literature determines the nature of films; literature and motion pictures are narratives, and share mythical, popular and narrative structures; both are linked because of the issue of adaptation; and movies influence literary works and the traditional concept of literature. This article examines these relationships from a conceptual and historic perspective.

O cinema como recurso pedagógico na aula de história

Este estudo pretendeu pesquisar acerca da influência do cinema histórico de ficção na construção do conhecimento histórico de alunos de História A do Ensino Secundário. Foi realizado com uma turma do 10º ano de escolaridade de 20 alunos e foi antecedido de um estudo prévio. O trabalho baseou-se no visionamento do filme "O Gladiador" e na realização de fichas de trabalho: a "Ficha de Enquadramento Histórico do Filme", para contextualizar a época histórica em que decorria o filme; a "Ficha de Análise do Filme”, para recolha de dados e finalmente a "Ficha de Trabalho de Comparação entre Fontes Históricas e o Filme". As respostas fornecidas pelos alunos foram organizadas em categorias. Para as perguntas que pediam uma resposta mais directa e simples foram criadas três categorias: básica primária, básica secundária e definição elaborada. Para as perguntas que exigiam uma resposta mais complexa criaram-se cinco categorias: incoerente, básica primária, básica secundária, definição emergente e definição elaborada. As principais conclusões foram: a) o cinema de ficção desempenha um importante contributo na construção do conhecimento histórico dos alunos do ensino secundário; b) o visionamento de filmes de ficção na aula de História deve ser acompanhado com o confronto de fontes históricas para os alunos distinguirem ficção de conhecimento histórico; c) o cinema desempenha um papel muito importante no desenvolvimento das competências específicas de História do Ensino Secundário e do espírito crítico dos alunos; entre outras. / ABSTRACT: This study aimed to understand the influence of historical fiction movies in historical knowledge of students in History of Secondary Education. The study was conducted with a group of 20 students of the 1O th grade and was preceded by a preliminary study. The work was based on viewing the film Gladiator and on worksheets: A "Historical Background" to contextualize the historical era of the movie, the "The analysis of the Movie" to collect data and finally the “Comparison of Historical Sources and movie” worksheet to analyze distinguish fiction from historical knowledge. The responses given by students were categorized: for questions that asked for a more direct and simple answer were created three categories: Basic; Primary; Definition elaborated. For questions requiring a more complex answer were created five categories Incoherent; Basic; Primary; Emergent and Elaborated. The main conclusions were: a) the film fiction has an important contribution to historical knowledge of secondary school students, b) using films in history lessons should be accompanied with a comparison of historical sources for students to distinguish fiction from historical knowledge, c) the film plays an important role in the development of specific skills for the History of Secondary Education and the students' critical thinking, among others.

El conflicto interior en la construcción de personajes de comedia. Tratamiento en la obra audiovisual titulada Medicina

La comedia nació como forma de expresión dramática donde lo innombrable o prohibido, podía ser expuesto de manera más agradable para el público. Moliere, uno de los grandes comediantes de la historia, criticaba a las monarquías del pueblo francés de manera directa y controversial. Su obra, patrimonio histórico de Francia, fue apreciada entre los altos estratos sociales. En la actualidad, la comedia en el cine trabaja mayormente con mofas y usa temáticas estereotípicas para facilitar la identificación del público con los personajes, sin ser necesariamente adecuado. La comedia es utilizada como principal género cinematográfico comercial, siguiendo la fórmula de Hollywood para el entretenimiento masivo. También existen comediantes, como Woody Allen, que hacen uso del género a manera de terapia para el autodescubrimiento y catarsis de conflictos que los agobian como personas y artistas. El interés por desarrollar esta tesis nace cuando su autor termina la filmación del cortometraje promocional para su proyecto de serie de televisión: Medicina. En tono de comedia. En este proyecto, los personajes protagonista y coprotagonista funcionan como una misma fuerza en función de alcanzar un objetivo; sin embargo, sucede que el segundo existe en función del conflicto del primero, lo que abre las puertas para desarrollar un trabajo dramatúrgico complejo que exige un análisis teórico amplio. Esta tesis tiene como fin aportar al entendimiento de los códigos que hacen de la comedia un género complejo y expresivo. Estos conocimientos serán aplicados en el guión del episodio piloto de Medicina.

Révolution P.Q. : figures révolutionnaires québécoises

Mon mémoire de recherche-création se divise en deux volets. Le premier volet est une partie théorique qui est partagée en trois parties. Dans l’introduction, je parle de la figure iconique que renvoie l’image de « Che » Guevara. Dans la première partie, je fais une distinction entre une révolution et une révolte. Ensuite, je fais un résumé de différents ouvrages concernant les groupes contestataires dans la littérature québécoise et comment les auteurs ont parlé de révolte et d’identité plutôt que de faire un portrait du révolutionnaire québécois. Parallèlement, je démontre comment le cinéma québécois a dépeint les révolutionnaires, soit de manière ironique et cynique, soit en démontrant le côté humain et héroïque des contestataires. Dans la deuxième partie, j’explique pourquoi j’ai décidé de faire un film documentaire sur les figures de la révolution au Québec. Je parle de mes choix esthétiques, du choix des intervenants, de la voix au cinéma et de la puissance des archives. Mon film documentaire traite spécifiquement de la question des figures contestataires et est complémentaire du mémoire écrit. Dans mon film, j’essaie surtout de démontrer s’il existe des figures contestataires iconiques québécoises qui renvoient à l’idée de la révolution, comme la célèbre image et l’individu qu’était Ernesto « Che » Guevara. Puisqu’il a inspiré des générations de contestataires dont ceux du Québec dans les années 1960 et 1970, quelles personnalités québécoises peuvent être identifiées comme étant des icônes de la révolution?

Sociocultural Complexities of Ecosystem Restoration: Remaking Identity, Landscape and Belonging in the Florida Everglades

The Florida Everglades is a highly diverse socionatural landscape that historically spanned much of the south Florida peninsula. Today, the Florida Everglades is an iconic but highly contested conservation landscape. It is the site of one of the world’s largest publicly funded ecological restoration programs, estimated to cost over $8 billion (U.S. GAO 2007), and it is home to over two million acres of federally protected lands, including the Big Cypress National Preserve and Everglades National Park. However, local people’s values, practices and histories overlap and often conflict with the global and eco-centric values linked to Everglades environmental conservation efforts, sparking environmental conflict. My dissertation research examined the cultural politics of nature associated with two Everglades conservation and ecological restoration projects: 1) the creation and stewardship of the Big Cypress National Preserve, and 2) the Tamiami Trail project at the northern boundary of Everglades National Park. Using multiple research methods including ethnographic fieldwork, archival research, participant observation, surveys and semi-structured interviews, I documented how these two projects have shaped environmental claims-making strategies to Everglades nature on the part of environmental NGOs, the National Park Service and local white outdoorsmen. In particular, I examined the emergence of an oppositional white identity called the Gladesmen Culture. My findings include the following: 1) just as different forms of nature are historically produced, contingent and power-laden, so too are different claims to Everglades nature; 2) identity politics are an integral dimension of Everglades environmental conflicts; and 3) the Big Cypress region’s history and contemporary conflicts are shaped by the broader political economy of development in south Florida. My dissertation concluded that identity politics, class and property relations have played a key, although not always obvious, role in shaping Everglades history and environmental claims-making, and that they continue to influence contemporary Everglades environmental conflicts.

Collaborative filtering and deep learning based recommendation system for cold start items

Recommender system is a specific type of intelligent systems, which exploits historical user ratings on items and/or auxiliary information to make recommendations on items to the users. It plays a critical role in a wide range of online shopping, e-commercial services and social networking applications. Collaborative filtering (CF) is the most popular approaches used for recommender systems, but it suffers from complete cold start (CCS) problem where no rating record are available and incomplete cold start (ICS) problem where only a small number of rating records are available for some new items or users in the system. In this paper, we propose two recommendation models to solve the CCS and ICS problems for new items, which are based on a framework of tightly coupled CF approach and deep learning neural network. A specific deep neural network SADE is used to extract the content features of the items. The state of the art CF model, timeSVD++, which models and utilizes temporal dynamics of user preferences and item features, is modified to take the content features into prediction of ratings for cold start items. Extensive experiments on a large Netflix rating dataset of movies are performed, which show that our proposed recommendation models largely outperform the baseline models for rating prediction of cold start items. The two proposed recommendation models are also evaluated and compared on ICS items, and a flexible scheme of model retraining and switching is proposed to deal with the transition of items from cold start to non-cold start status. The experiment results on Netflix movie recommendation show the tight coupling of CF approach and deep learning neural network is feasible and very effective for cold start item recommendation. The design is general and can be applied to many other recommender systems for online shopping and social networking applications. The solution of cold start item problem can largely improve user experience and trust of recommender systems, and effectively promote cold start items.

Collaborative filtering and deep learning based hybrid recommendation for cold start problem

Recommender systems (RS) are used by many social networking applications and online e-commercial services. Collaborative filtering (CF) is one of the most popular approaches used for RS. However traditional CF approach suffers from sparsity and cold start problems. In this paper, we propose a hybrid recommendation model to address the cold start problem, which explores the item content features learned from a deep learning neural network and applies them to the timeSVD++ CF model. Extensive experiments are run on a large Netflix rating dataset for movies. Experiment results show that the proposed hybrid recommendation model provides a good prediction for cold start items, and performs better than four existing recommendation models for rating of non-cold start items.

Révolution P.Q. : figures révolutionnaires québécoises

Mon mémoire de recherche-création se divise en deux volets. Le premier volet est une partie théorique qui est partagée en trois parties. Dans l’introduction, je parle de la figure iconique que renvoie l’image de « Che » Guevara. Dans la première partie, je fais une distinction entre une révolution et une révolte. Ensuite, je fais un résumé de différents ouvrages concernant les groupes contestataires dans la littérature québécoise et comment les auteurs ont parlé de révolte et d’identité plutôt que de faire un portrait du révolutionnaire québécois. Parallèlement, je démontre comment le cinéma québécois a dépeint les révolutionnaires, soit de manière ironique et cynique, soit en démontrant le côté humain et héroïque des contestataires. Dans la deuxième partie, j’explique pourquoi j’ai décidé de faire un film documentaire sur les figures de la révolution au Québec. Je parle de mes choix esthétiques, du choix des intervenants, de la voix au cinéma et de la puissance des archives. Mon film documentaire traite spécifiquement de la question des figures contestataires et est complémentaire du mémoire écrit. Dans mon film, j’essaie surtout de démontrer s’il existe des figures contestataires iconiques québécoises qui renvoient à l’idée de la révolution, comme la célèbre image et l’individu qu’était Ernesto « Che » Guevara. Puisqu’il a inspiré des générations de contestataires dont ceux du Québec dans les années 1960 et 1970, quelles personnalités québécoises peuvent être identifiées comme étant des icônes de la révolution?

The Complications of the Erotic: Eroticism in Last Tango in Paris and Une liaison pornographique

Even more so than in other arts, film has tried to draw an artificial but clear line between eroticism and pornography, nonetheless perpetuating moral judgments about movies marketed as “erotic”. The explicit and repeated portrayal of sex in such films would place them dangerously near the vortex of the pornographic, and thus, since they are not concerned with transcendental issues, they would require little or no critical attention. I will however try to argue, using Last Tango in Paris and Une liaison pornographique, that many of these “erotic” films conclude that a relationship based solely on sex (i.e. “pornographic”), which ignores the complexities of individual identity and the interpersonal is doomed to fail. Also, I would like to show how these films ultimately conceive of sex as something that goes beyond the merely physical and walks the grounds of such transcendental issues as despair, loneliness, death, or love.