Submitted by Glauber Assunção Moreira (glauber.a.moreira@gmail.com) on 2018-09-06T14:09:14Z No. of bitstreams: 1 PDF Final.pdf: 28443878 bytes, checksum: 54aa452035b930d127bdd66911f48a0e (MD5) / Approved for entry into archive by Ednaide Gondim Magalhães (ednaide@ufba.br) on 2018-09-11T13:20:42Z (GMT) No. of bitstreams: 1 PDF Final.pdf: 28443878 bytes, checksum: 54aa452035b930d127bdd66911f48a0e (MD5) / Made available in DSpace on 2018-09-11T13:20:42Z (GMT). No. of bitstreams: 1 PDF Final.pdf: 28443878 bytes, checksum: 54aa452035b930d127bdd66911f48a0e (MD5) / O objetivo desta tese é investigar a práxis cênica como problema estético-visual, cuja origem se encontra, não apenas nas primeiras teorizações do teatro da Grécia Clássica, mas também nos estágios iniciais do drama clássico, uma vez que ambas as abordagens observam, analisam e operam com a posição artística da luz no contexto do espetáculo teatral. A presente tese compreende a práxis cênica como uma obra compósita, cuja efetivação geralmente congrega o trabalho de muitos artistas, i. e., mesmo quando nela se observa a acentuação de um ou outro aspecto, sua natureza se afirma na interação dinâmica entre os diversos aspectos e agentes. Tais elementos interagem em movimentos irregulares, transversalmente articulados, entrelaçando-se ao longo do processo de criação. As investigações que constituíram a tese incorporam os conceitos de imagem cênica e de visualidade, aplicando a análise bibliográfico-documental como estratégia para identificar elementos instigantes para a discussão desses conceitos. A abordagem refere-se a um conjunto de documentos, desde o teatro grego clássico até a contemporaneidade, e descarta o ordenamento cronológico, pois leva em conta as específicas relações entre os textos e a problematização que guia a tese. Procurando analisar a amplitude das interações entre a luz e a cena, o presente trabalho é sustentado por duas convicções: em primeiro lugar, as contribuições da luz estão presentes em momentos muito anteriores à “montagem da luz” de um espetáculo; depois, do ponto de vista histórico, é preciso constatar a presença da luz no teatro, em momentos muito anteriores ao Renascimento italiano, no século XVI, quando apareceram os primeiros teatros cobertos que necessitavam da luz artificial para a realização de espetáculos. Com a leitura de textos e documentos do âmbito particular do tema, a tese indica futuras intervenções, tanto na abordagem teórica da cena em si, quanto no seu planejamento visual. / The aim of the dissertation is to investigate the scenic praxis as an aesthetic-visual problem, whose origin lies not only in the first theorizations of the theater of Classical Greece, but also in the early stages of classical drama, since both approaches observe, analyze and work the position of the light in the context of theatrical event. This dissertation understands scenic praxis as a composite work whose accomplishment usually gathers the work of many artists, i. e., even when it is observed the emphasizing of one or other aspect, its nature asserts itself in the dynamic interaction between the various aspects and agents. These elements interact in irregular movements, articulated in a transverse way, interweaving the process of creation. The investigations which formed the dissertation embody the concept of scenic image and “visualty” applying the bibliographic-documentary analysis as a strategy to identify provocative elements to its discussion. The approach include a set of documents from the classical Greek drama to the contemporary times, and discard the chronological order because it took into account specific relationships between the texts and the questioning that guides the thesis. Seeking to analyze the extent of the interactions between light and scene, this work is supported by two beliefs: first, the contributions of light are present in the spectacular events in much earlier times then the moment of the "lighting assembly" of a show; second, from the historical point of view, it is necessary to observe the presence of light long before the 16th century Italian Renaissance, when the need of artificial light for holding shows appeared in the first covered theaters. With the reading of texts and documents on the scope of the particular theme, the thesis indicates future interventions, both in the theoretical approach of the scene itself, and in planning for the theatre lighting design.

abstract: The study of lighting design has important implications for consumer behavior and is an important aspect of consideration for the retail industry. In today's global economy consumers can come from a number of cultural backgrounds. It is important to understand various cultures' perceptions of lighting design in order for retailers to better understand how to use lighting as a benefit to provide consumers with a desirable shopping experience. This thesis provides insight into the effects of ambient lighting on product perception among Americans and Middle Easterners. Both cultural groups' possess significant purchasing power in the worldwide market place. This research will allow marketers, designers and consumers a better understanding of how culture may play a role in consumer perceptions and behavior Results of this study are based on data gathered from 164 surveys from individuals of American and Middle Eastern heritage. Follow up interviews were also conducted to examine the nuances of product perception and potential differences across cultures. This study, using qualitative and quantitative methods, was executed using a Sequential Explanatory Strategy. Survey data were analyzed to uncover significant correlations and relationships using measures of descriptive analysis, analysis of variance (ANOVA), and regression analysis. Interviews were analyzed using theme-based coding and reported in narrative form. The results suggest that lighting does in fact have an impact on product perception, however despite minor differences, this perception does not vary much between individuals from American and Middle Eastern cultures. It was found that lighting could affect price and quality perception with reference to store-image and store atmospherics. Additionally, lighting has a higher impact on subjective impressions of product (such as Freshness, Pleasantness, and Attractiveness), more than Price and Quality perceptions. This study suggests that particular lighting characteristics could be responsible for differences in product perception between these two cultures. This is important to note for lighting designers and marketers to create retail atmospheres that are preferable to both cultures. / Dissertation/Thesis / M.S.D. Design 2013

Orientador: Luiz Antonio Rossi / Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Agrícola / Made available in DSpace on 2018-08-17T22:32:52Z (GMT). No. of bitstreams: 1 David_Eduardo_D.pdf: 3445117 bytes, checksum: ea9a482081719a247d2141a62f8c99ae (MD5) Previous issue date: 2011 / Resumo: O tipo de iluminação artificial utilizada para indução do efeito de fotoperíodo na produção de mudas de crisântemos e begônias em ambiente protegido tem fundamental importância no crescimento e desenvolvimento destas plantas refletindo diretamente no consumo de energia elétrica utilizada neste processo de produção. As lâmpadas de filamento são o tipo de iluminação artificial mais utilizado pelos produtores na produção destas variedades de ornamentais, e que conhecidamente possui baixa eficiência. Estudos preliminares recentes, utilizando diferentes tipos de lâmpadas do tipo descarga na produção de mudas de crisântemos, indicam uma redução significativa no consumo de energia elétrica utilizada no processo, sem prejuízos para o desenvolvimento do vegetal. O objetivo deste trabalho de pesquisa foi a aplicação de tecnologias de iluminação de descarga (lâmpadas Fluorescentes Tubulares e lâmpadas Fluorescentes Compacta Integradas) e diferentes regimes de acionamento deste sistema de iluminação no cultivo de crisântemos e begônias em ambiente protegido. O trabalho foi efetuado em casa de vegetação comercial com três variedades de Begônias elatior (Borias, Barkos e Baladin) e quatro variedades de Chrysanthemum sp (Abba, Rage, Sahara Time e Omega Time Golde) durante um ciclo de produção. O parâmetro produtivo utilizado para comparação entre as variedades cultivadas foi a indução floral. As variáveis elétricas (consumo, demanda e fator de potência) foram os parâmetros de avaliação entre as diferentes tecnologias de iluminação e tipos de lâmpadas analisadas. Para as culturas de begônias e crisântemos, não houve alterações no critério de presença de botão floral com a mudança do regime de acionamento e do tipo de lâmpada. Os resultados das análises indicam que a lâmpada de descarga Fluorescente Tubular de 32 W foi a que apresentou a menor demanda máxima e uma redução média de consumo de 85,01% de energia para a cultura de begônias e de 85,32% para a cultura de crisântemos, em relação à tecnologia de maior consumo, a lâmpada de filamento Incandescente de 100 W, que é a atualmente utilizada pelo produtor / Abstract: The type of artificial illumination used for induction of photoperiod effect in the production of chrysanthemums and begonias seedlings in protected environment, has fundamental importance in the growth and development of these plants reflecting directly in the consumption of electric energy used in this process of production. The bulb filament are the type of artificial illumination more used by the producers in the production of these ornamental varieties, and that is known by its low efficiency. Recent preliminary studies, using different types of discharge-type lamps in the production of chrysanthemum seedlings indicate a significant reduction in the consumption of electric energy used in the process, without interfering in the development of the plant. The objective of this research was the application of lighting discharge technologies (fluorescent lamps and compact fluorescent lamps) and different regimes drive of this lighting system in the cultivation of chrysanthemums and begonias in protected environment. This work was done at a green house with three commercial varieties of Begonias elatior (Borias, Barker and Baladin) and four varieties of Chrysanthemum sp (Abba Rage, Sahara Teams and Omega Golde Teams) during a production cycle. The parameter used for comparison between the cultivated varieties was the presence of floral bud. The electrical variables (consumption, demand and power factor) were the parameters of evaluating of the different technologies of lighting and lamp types analyzed. For the culture of begonias and chrysanthemum, it did not have alterations in the criterion of presence of floral bud with the change of the regime and the lamp type. The results of the analyses indicates that the Fluorescent Tubular discharge lamp of 32 W was the one with the lower peak demand and lower average consumption of energy of 85,01% for the culture of begonias and 85,32% for the culture of chrysanthemum, in relation to the technology of bigger consumption, the Incandescent lamp filament of 100W, that is currently used by the producer / Doutorado / Construções Rurais e Ambiencia / Doutor em Engenharia Agrícola

Orientador: Paulo Sergio Scarazzato / Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Civil, Arquitetura e Urbanismo / Made available in DSpace on 2018-08-13T03:58:19Z (GMT). No. of bitstreams: 1 Martau_BetinaTschiedel_D.pdf: 55725573 bytes, checksum: 7dff9393612962ee9f33a68ebefa45e9 (MD5) Previous issue date: 2009 / Resumo: Este trabalho aborda os impactos nao visuais da exposicao humana a luz tentando relacionar a qualidade da iluminacao a saude e bem-estar das funcionarias de lojas. A amostra do estudo transversal foi definida aleatoriamente, com a participacao de mulheres voluntarias. Foram selecionados tres grupos com dez participantes em cada: lojas de rua com contato com exterior e turno de trabalho diurno (9h as18h), lojas de shopping centers sem janelas para o exterior com turno de trabalho diurno (10h as 18h) e lojas de shopping centers sem janelas para o exterior com turno de trabalho tarde e noite (14h as 22h). A avaliacao da iluminacao considerou as dimensoes das lojas e caracteristicas dos sistemas, incluindo ofuscamento, aparencia de cor da luz, flexibilidade e possibilidade de controles da iluminacao pelas funcionarias. A avaliacao de aspectos relativos a saude e ao bem-estar utilizou como instrumentos as escalas psicometricas validadas pela area da Psicologia para afericao de sintomas depressivos, de ansiedade e estresse. A avaliacao das condicoes de sono e analise do ritmo atividade/repouso foi feita com um actimetro com luximetro acoplado (Actiwatch), e a analise do ritmo de temperatura corporal, com um sensor de temperatura (Ibutton). Foi estabelecido o padrao de luz 24h a que esteve sujeita cada participante durante cinco dias consecutivos e verificada a influencia deste padrao no sistema circadiano, atraves da medicao dos niveis de melatonina e cortisol salivar. O grau de satisfacao das funcionarias e suas preferencias relativas a iluminacao do ambiente de trabalho foram levantados atraves da aplicacao de questionarios. Os dados foram analisados utilizando-se correlacoes de Pearson, ANOVA e regressoes tipo stepwise, tendo como ferramenta o SPSS for Windows 13.0. No grupo das lojas de rua, os resultados indicam que, apesar de o nivel de satisfacao das funcionarias com os sistemas de iluminacao nao ser elevado, a presenca de luz natural contribui para sua saude e bem-estar. O cruzamento de aspectos de satisfacao e emocionais com os aspectos biologicos indicou que quanto maior a satisfacao geral com a iluminacao pela funcionaria da loja de rua, maior o nivel de melatonina as 24h e menores o escores de depressao. A possibilidade de contato com o exterior neste grupo leva a melhores condicoes fisiologicas, principalmente nas condicoes de sono, que os demais grupos. Nos grupos de shopping centers, a correlacao inversa encontrada entre a iluminancia geral media da loja e a satisfacao geral com as condicoes da iluminacao no ambiente de trabalho merece destaque, porque e nesta categoria que os escores foram mais altos em todas as escalas aplicadas, indicando piores condicoes emocionais, e onde ha alteracoes nos aspectos biologicos avaliados. A pesquisa conclui ser necessaria a revisao das estrategias para a iluminacao de lojas, sejam elas de rua ou de shopping centers, buscando-se resolver os possiveis conflitos entre uma iluminacao para vender produtos e a que considere a loja como um ambiente de trabalho. / Abstract: This work addresses the issue of non-visual impacts of human exposure to light, in an attempt to relate the quality of lighting to health, comfort, and well-being of female retail store employees. The sample for the cross-sectional study was randomly established with female volunteers. Three groups were selected: street retail stores with outside contact and daily working hours (9 a.m. to 6 p.m.), shopping mall retail stores with no window facing outside, with daily working hours (10 a.m. to 6 p.m.), and shopping mall retail stores with no window facing outside, with afternoon and evening working hours (2 p.m. to 10 p.m.). Each group included ten employees. Assessment of lighting considered the dimensions of the stores and characteristics of systems, including the occurrence of glare, color appearance of light, flexibility, and possibility of lighting control by employees. The tools to assess well-being and health were psychometric scales internationally validated by the psychiatric field to measure depression, anxiety, and stress symptoms. Assessment of sleep conditions and analysis of the activity/rest rhythm was carried by a wrist monitor with attached luximeter (Actiwatch) and the analysis of the body temperature rhythm was made by a temperature sensor (Ibutton), to which each participant was submitted for five consecutive days. The lighting pattern's influence on the circadian system was verified by measuring saliva melatonin and cortisol levels. The degree of satisfaction of employees and their preferences regarding work environment lighting were surveyed by applying questionnaires. Data were analyzed using Pearson correlations, ANOVA, and stepwise regression, with the tool SPSS for Windows 13.0. In street retail store group, results indicate that even though employees' satisfaction with lighting systems is not high, the presence of natural light contributes for their health and well-being. Crossing the assessment of satisfaction and emotional aspects with biological ones indicated that the higher the street retail store employees' general satisfaction with lighting, the higher their melatonin level at 12 p.m. and the lower their depression scores. Possibility of outside visual contact in that group leads to better physiological conditions, especially sleep conditions, than the other groups. In shopping mall groups, the reverse correlation found between the store's average general illuminance and general satisfaction with lighting conditions in the work environment is worth pointing out, since scores were highest in that category (worse emotional conditions) in all scales applied and there are changes both in cortisol rhythm (tendency to lower rhythm in the morning and afternoon mall group) and in melatonin (tendency to phase delay in the afternoon and evening mall group) as well as differentiation in activity rhythm and temperature in the afternoon and evening mall group. Shopping mall employees' miss visual contact with the outside, being able to vary lighting during the workday, and consider lighting as excessive. Most of them reported that they would like to reduce the amount of light in their workplace during the day. The study concludes that it is necessary to review the stores' lighting strategies, whether they are street retail stores or shopping mall retail stores, to seek new guidelines able to solve the possible conflicts between light oriented to sell products and that which considers the store as a workplace. / Doutorado / Arquitetura e Construção / Doutor em Engenharia Civil

Master of Science / Department of Architectural Engineering and Construction Science / Raphael A. Yunk / The DALI (Digital Addressable Lighting Interface) protocol has set forth the requirements for a digital fluorescent ballast that out performs its predecessors with respect to flexibility and functionality. The advantages of a DALI lighting control system range from advanced dimming capabilities and daylight sensing to saving money in energy and maintenance costs. A DALI lighting control system can also be beneficial to designers when trying to meet the requirements of code or recommended practices. The information in this report will help designers decide when to consider using a DALI lighting control system. This report covers topics such as the advantages of digitally addressable lighting, the equipment required to make a DALI system work, the limitations and drawbacks of DALI, cost information on installing and using a DALI system, and how DALI can help meet code and recommended practices, and concludes with a case study demonstrating how a DALI system has the potential to save money in energy costs.

No description available.

This paper investigates the role of artificial light as a tool for spread a political message, focusing on Brazilian political scenario. Given the recent context of the weakening of many democratic institutions around the world together with Covid-19 pandemic, new ways of protesting have been transforming the character of political demonstrations. The aim is to identify which tools are being used in Brazil for this purpose and to comprehend what is the future of light protests. First, an analysis of how light has been incorporated into political art is briefly described. Then, some recent political protests around the world in which light was used in different ways are presented. After an overview of the use of light in contemporaneity, the research focus on Brazilian protest scene using three light tools: drones, lasers and projectors.  The research methodology is conducted through case studies of works by five artists combined with interviews with artists, projection collectives and academic experts. The results show that the pandemic in Brazil along with political mismanagement, triggered a massive wave of projections throughout the country. What before the pandemic had already gained strength, after the year 2020 took on a larger dimension. As a result, projections became popular to the extent that workshops were held in low-income communities to teach people how to build projectors with flashlights and paper. Another aspect raised during the research is that lasers have taken hold and tend to become more popular in the coming years. There is no Brazilian national legislation for the use of lasers, projectors and drones in cities during protest situations, as the laws are in each individual state. Given this growth in the use of these lighting tools, a national law may be created.

Cooperative learning refers to teaching methods that encourage students to work together in small groups to help each other learn educational content. In Sweden, cooperative learning methods are used in classrooms as an educational approach to organize classroom activities into academic and social learning experiences. This thesis investigates how lighting can support cooperative learning in Swedish classrooms to enhance students' learning performance while taking into account visual tasks during different pedagogical activities and visual comfort. To answer this question, the existing lighting of a middle school classroom in Iggesund Skola, Sweden, was studied through a methodology based on both qualitative and quantitative methods. Analysis of literature review, personal observations and interviews, measurements of illuminance, luminance, and color metrics, and 3D simulations formed the foundation of the lighting design proposal for the refurbishment of classrooms.The results show that the lighting requirements of students and teachers have changed with time. To include cooperative learning methods, the users ask for a changeable lighting solution that can work with their flexible learning method. Hence, the design proposal focuses on enhancing students' learning performance while emphasizing the flexibility of their learning method.

The use of real time data as an input for lighting control is an emerging element for designers to implement into lighting schemes but does it add any value or have the ability to influence human behaviour? The recent development in technological capabilities, the demand within the emerging experience economy and the hybridisation of digital and physical realms make this a current and relevant investigation. This study aims to understand the relationship between light and behaviour and the potential of real time data to enhance it by initiating and curating lighting effect in a physical space. In this context, the experience economy describes the business model of providing meaningful and memorable experiences to customers as a core feature of a product or service while real time data describes the harvesting of information as it happens. Through reviewing literature and interviewing professionals in the field of both light and data the results conclude that light does influence behaviour in the context of attention, movement and emotion. Analysis of case studies and technological enablers indicate in-space sensors to be a valuable source of data which can be used effectively to trigger light scenes that respond instantly, with relevance to occupants inhabiting the built environment. Trend reports and industry luminaries forecast strong predictions for the merging of physical and digital worlds as a means of providing memorable and meaningful experiences for retail consumers. It is recommended that lighting designers educate themselves in preparation for the inevitable growing demand for such experiences.

Over the past few years, the use of LEDs within the automotive and avionic industries has increased due to their high efficiency, durability and wide range of light brightness. As the use of LEDs within these industries grows, a need for reliable, high performance drivers becomes more relevant. Companies are implementing LEDs for applications involving adaptive lighting or simple dimming features. This thesis shows implementation of various non-isolated analog converters integrated with digital dimmers to achieve these adaptive lighting systems. Adaptive lighting systems involve reading an input from an external source (brake pedal or steering wheel) and changing the brightness and/or pattern of the brake/headlights to convey more information to the driver and their surroundings. The analog converters will implement Linear Technology’s LED driver IC’s, while the digital dimmers comprise of microcontrollers and discrete components. The design, simulation, and hardware verification will showcase the abilities of these analog converters. Results will demonstrate the proposed applications for both adaptive front and brake lighting.