1,721,906 research outputs found
Goia: planejamento de assessoria de comunicação
No full textEste memorial tem como objetivo apresentar o plano de comunicação feito para a Goia comunicação, empresa de assessoria de comunicação, que tem como viés mercadológico uma comunicação voltada à integração e proximidade do cliente com seu público-alvo. Para isso, foi realizada uma breve revisão bibliográfica sobre comunicação integrada e assessoria de comunicação, além de diagnóstico que envolveu atividades de pesquisa e análise de redes sociais. O resultado deste processo de planejamento e pesquisa foi a elaboração de um manual da marca, com diretrizes de uso, da criação dos perfis da Goia nas redes sociais e de um plano de comunicação, com indicações de ações a serem executadas.This project specifications aims to present the communication plan made for Goia communication, a communication consulting company, whose marketing bias is communication focused on the integration and proximity of the client with its target audience. For this, a brief bibliographic review was carried out on integrated communication and communication advice, as well as a diagnosis that involved research and analysis of social networks. The result of this process of planning and research was the elaboration of a manual of the brand, with guidelines of use, creation of profiles of Goia in the social networks and of a communication plan, with indications of actions to be executed
Dynamic Building Envelope Components and nearly Zero Energy Buildings
No full textDue to the significant impact of the building sector on greenhouse gas emissions, newer and stricter regulations aimed at reducing total energy use in buildings have appeared in the last few years. In the European context, all the new constructions will thus soon be asked to be nearly Zero Energy Buildings (nZEB). In order to reach this target, new concepts and technologies capable of further improving buildings' energy efficiency need to be developed. A very promising strategy to overcome current technologylimitations is represented by revisiting the conventional approach that considers the building as a staticobject and moves towards the vision where the building is a responsive and dynamic system. The main feature of this concept is the possibility of continuously changingthe interaction between the building elementsand the outdoor/indoor environment in order to reduce the energy demands and enhance the exploitation of "environmental" and low-exergy energies. In this framework, the building skin isprobably that element of the construction which shows the largest potential, especially if its properties can be continuously tuned so that the best response to different dynamic indoor and outdoor boundary conditions can be achieved. Although it is not possible to state that the dynamic building envelope alone could represent the only solution to achieving the nZEB target, great expectations are placed on advanced integrated façade systems. The aim of this research is therefore to evaluate to what extent dynamic and active building skins can reduce operational energy demand in buildings. In order to find an answer to such a wide (and general) question, the research activity is organized using a multi-level structure. Each segment of the investigation is thus dedicated to assessing the impact of such a vision on different scales: from a whole building skin approach (concept level) to an intermediate scale (system level) and further down to a very detailed and specific class of components (material-technology level). In the concept level, an ideal dynamic building skin is assumed and modelled. The performance of such a theoretical configuration is then numerically assessed and compared with that of a more conventional reference envelope solution. In the system level, an integrated multifunctional façade module, characterized by a high degree of adaptability and responsiveness, is presented, and its energy and thermo-physical behaviour evaluated by means of an experimental analysis. Finally, in the material-technology level, the implication of glazing systems integrating phase change materials on the energy performance and on thermal comfort are evaluated by means of experimental, numerical and laboratory analyses. The findings demonstrate that improvements in energy efficiency and comfort performance can be achieved when dynamic concepts, systems and technologies are applied. In every level, the dynamic component often provides a very good performance and, when compared to a conventional solution, advantages are shown.However, it is important that dynamic components are coherently employed in the framework of an integrated building design vision and properly managed. Further, the simple adoption of such systems without a global approach and optimal control strategies is often not enough to reach a significant improvement in energy efficiency and IEQ. The results also show that, sometimes, the advantages achieved by the investigated configurations may be lower than expected, though an optimization of their performance is probably still possible. Limitations in the analyses and possible solutions for future development of the research activity are also discussed, pointing out that, if from the one hand, considerable efforts are still needed in research and development before a completely adaptable building skin can be effectively employed on a large scale, on the other hand the large potentials that this vision has are worthy of further investigatio
The impact of an ideal dynamic building envelope on the energy performance of low energy office buildings
Full text linkThis paper shows the results of a research activity aimed at assessing the advantages of an ideal adaptive building skin over conventional building envelope systems. The basic idea underlying the research consists in imagining an ideal building envelope system characterised by the capability of continuously changing (within a certain range) some of its thermo-physical and optical properties. The reason for the continuous tuning of thermo-physical and optical properties lies in the assumption that an optimised (fixed) configuration, where the properties do not change over time, is not able to minimise the total energy demand of the building at each moment. For the sake of this purpose, an ideal dynamic WWR (Window-to-Wall Ratio) building envelope system for low energy office buildings was modelled and simulated. An integrated thermal-lighting building simulation tool was used. The energy performance of such a system was then analysed and compared against the performance of a conventional façade realised with best-available technologies. The results of the investigation demonstrated the advantages of a dynamic WWR configuration over a static one. However, the improvements achieved in energy demand were lower than expected. This behaviour is strictly related to the configuration of the building used as a reference, which already showed a very high energy performance. Limitations presented by the research method are also briefly pointed out and discussed
Thermo-physical behaviour and energy performance assessment of PCM glazing system configurations: A numerical analysis
Full text linkAbstractThe adoption of Phase Change Materials (PCMs) in glazing systems was proposed to increase the heat capacity of the fenestration, being some PCMs partially transparent to visible radiation.The aim of the PCM glazing concept was to let (part) of the visible spectrum of the solar radiation enter the indoor environment, providing daylighting, while absorbing (the largest part of) the infrared radiation.In this paper, the influence of the PCM glazing configuration is investigated by means of numerical simulations carried out with a validated numerical model. Various triple glazing configurations, where one of the two cavities is filled with a PCM, are simulated, and PCM melting temperatures are investigated. The investigation is carried out in a humid subtropical climate (Cfa according to Köppen climate classifi-cation), and “typical days” for each season are used.The results show that the position of the PCM layer (inside the outer or the inner cavity) has a relevant influence on the thermo-physical behaviour of the PCM glazing system. PCM glazing systems (especially those with the PCM layer inside the outermost cavity) can be beneficial in terms of thermal comfort. The assessment of the energy performance and efficiency is instead more complex and sometimes controversial. All the configurations are able to reduce the solar gain during the daytime, but sometimes the behaviour of the PCM glazing is less efficient than the reference one
Functional Linear Model for Time Series Prediction with Exogenous Variables
No full textThis note deals with the study of a functional linear model for time series prediction which combines a functional endogenous predictor and real and functional exogenous variables. A penalized B-spline type estimator for the real and functional coefficients is presented and some weak consistency results are derived under suitable conditions
Optimal nonlinear transformations of random variables
No full textIn this paper we deepen the study of the nonlinear principal components introduced by Salinelli in 1998, referring to a real random variable. New insights on their probabilistic and statistical meaning are given with some properties. An estimation procedure based on spline functions, adapting to a statistical framework the classical Rayleigh-Ritz method, is introduced. Asymptotic properties of the estimator are proved, providing an upper bound for the rate of convergence under suitable mild conditions. Some applications to the goodness-of-fit test and the construction of bivariate distributions are proposed
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