Tag clouds for situated interaction and place profiling

Tag clouds have become very popular as visual representations of the main topics in document sets or as navigation tools that can provide quick access to resources related with specific topics. However, their ability to represent the information environment associated with any meaningful reality in a way that is collectively visible, actionable and easily understood may also be very relevant, even when the reality being represented is no longer a set of documents or resources, but a stream of interactions occurring within a particular ubiquitous computing environment. In this paper, we explore the use of tag clouds within the context of situated displays and services. We hypothesise that such tag clouds may have a role as dynamic representations of place and also as interaction controls, supporting the same comprehension and navigation functions of classical tag clouds. We describe two case studies in which this concept of situated tag cloud has been experimented in real-world settings. The case studies demonstrate two different applications of the tag cloud concept as the basis for place description and situated interaction. The results obtained from the case studies suggest that situated tag clouds can indeed provide valuable representations of place and situations and can also support simple interaction models, allowing people to reason about the system behaviour and how it is being influenced by new interactions.Fernando Ribeiro was supported by a Portuguese Foundation for Science and Technology scholarship (SFRH/BD/31292/2006). The research leading to these results has received funding from FCT under the Carnegie Mellon - Portugal agreement: Wesp (Web Security and Privacy (Grant CMU-PT/SE/028/2008)

Remanufatura de equipamentos eletrônicos: aplicabilidade

The accelerated consumption and lack of proper disposal of products, their packaging and their waste have created an environmental imbalance that in recent decades has been discussed with much concern. When it comes to electronic equipment the situation is aggravated by the presence of toxic substances in its components. In this sense, the present study points out the importance of applying reverse logistics through remanufacturing on desktops and notebooks within the Federal University of Uberlândia. The data collection and statistical analysis performed regarding the electronic equipment registered in the DIMAN (Maintenance Division) and DIPAT (Patrimony Division) database, as well as access to complementary asset management systems and interviews with the managers of these units allowed the overview of the procedures performed at the university, considering the particular characteristics of the institution. Thus it points out that the reuse of electronics parts such as CPUs and notebooks maximizes the use of raw materials and reduces electronic waste disposal, presenting a viable alternative to the extension of the useful life of equipment at low cost to the University, in this sense desemprenho analysis of notebooks and desktops with reused parts, he pointed out that the equipment had a long lifetime due to actions of recovery processes. As for financial analysis, it was estimated that the desktops recovery value is higher compared to laptops finally from average values by adding the maintenance on both equipment the institution realized a savings of approximately 40 thousand reais to the implementation of reuse and recovery of equipment.REZENDE, José Reinaldo Silva. Electronic Equipment Remanufacturing: Applicability. 2019. 60 fls. Trabalho de Conclusão de Curso, Universidade Federal de Uberlândia, Uberlândia, 2019.Trabalho de Conclusão de Curso (Graduação)O consumo acelerado e a falta de destinação correta de produtos, suas embalagens e seus resíduos criaram um desequilíbrio ambiental que nas últimas décadas que tem sido discutido com muita preocupação. Quando se trata de equipamentos eletrônicos a situação é agravada pela presença de substâncias tóxicas em seus componentes. Nesse sentido o presente estudo aponta a importância da aplicação da logística reversa, por meio da remanufatura em desktops e notebooks no âmbito da Universidade Federal de Uberlândia. A coleta de dados e a análise estatística realizada referente aos equipamentos eletrônicos cadastrados no banco de dados da DIMAN (Divisão de Manutenção) e DIPAT (Divisão de Patrimônio), bem como acesso aos sistemas complementares de gestão patrimonial e entrevistas com os gestores destas unidades possibilitaram a visualização do panorama de procedimentos realizados na universidade, considerando as características particulares da instituição. Deste modo aponta-se que o reaproveitamento das peças de equipamentos eletrônicos como CPUs e notebooks maximiza o uso das matérias-primas e reduz o descarte de lixo eletrônico, apresentando uma alternativa viável para o prolongamento da vida útil desses equipamentos com baixo custo para a Universidade, Nesse sentido a análise de desemprenho de notebooks e desktops com peças reaproveitadas, apontou que os equipamentos tiveram um tempo de vida prolongado devido a atuação dos processos de recuperação. Quanto a análise financeira, foi estimado que o valor de recuperação dos desktops é maior em relação aos computadores portáteis, por fim a partir de valores médios que somando as manutenções em ambos equipamentos a instituição realizou uma economia de aproximadamente 40 mil reais com a aplicação do reaproveitamento e recuperação de equipamentos

A holonic approach to the integration of automated systems

During several years building and residential automation was thought as a good test bed for integration methods applied to automated systems. A reason for that is the large response time of these systems and the fact that they assemble a set of very well known sub-systems (HVAC, security, elevators, etc.). Even recent innovations in residential environments are based on components based on solid and scalable technology. On the other hand the degree of integration did not improve as much as expected. In this paper we investigate this problem, first from a practical point of view, that is, based on the design and implementation difficulties that designers and vendors face everyday, and second from a technical and methodological point of view, which means finding a new control architecture that could lead to real flexible and integrated systems. Frame architectures could provide a better and modern approach relying on a heterarchic arrangement of sensors and actuators. Some years ago part of the authors proposed a similar architecture based on a generic element called integron. Now we revisit the same point with a new version of the same element focusing on the arrangement of the whole system and on the information flow instead of just distributing the control. We claim that such approach is more efficient. Also it will better fit the requirements in a heterogeneous environment such as residential automation

Application of a strain gauge to assess drying stresses in normal and tension wood of corymbia citriodora

The quantitative evaluation of longitudinal drying strain can provide relevant information for the processing wood and lumber industry, especially with regard to reaction wood in Corymbia, since little has been published. The objective of this work was to evaluate the effect of the steam conditioning and the cooling on the longitudinal drying strain (LDS) obtained from a strain gauge, called extensometer, in boards of both normal and tension wood of Corymbia citriodora. Lumbers 30 mm thick were produced and kiln dried at the initial temperature of 40 °C, final temperature of 65 °C and drying potential of 2,1. The LDS were measured before and after steam conditioning on hot and cold lumbers. It was observed that the conditioning did not reduce the LDS. Hot lumbers showed higher LDS values than the cold lumbers. The LDS values measured in normal, tension and opposite woods were statistically similar, indicating that the type of wood was not an influential factor in the appearance of longitudinal drying stresses. Extensometer proved to be feasible for measuring LDS, allowing its easy and quick quantification

Water flow in different directions in Corymbia citriodora wood

This study aims to evaluate the free and bound water flows in the different axes of Corymbia citriodora wood during drying. Wood samples were taken from the inner and outer regions of the tree stem from seven-years-old experimental plantations. The blocks were prepared for the water flow to occur in each wood axis and they were dried up to the final moisture content of 12%. Free water (FWFR), bound water (BWFR) and total water (TWFR) flow rates were calculated. The relationship between loss of moisture content and time presented an exponential curve, especially in the radial and tangential wood axes. Water flow in the three wood directions presented higher FWFR than TWFR (which was higher than BWFR). Free water flow was ~10 times higher than adsorbed water flow, considering values for moisture content between ~80% to ~12%. Free water movement in the longitudinal direction of the wood was ~2 times greater than in the radial axis and ~3 times greater than in the tangential axis. Bound water movement in the longitudinal direction of the wood was ~2 times greater than in the transverse direction. Bound water flow in the radial axis of the wood was statistically equal to the one in the tangential axis. The results indicate that the intensity of free and bound water flows changes according to the direction of Corymbia citriodora wood

INFLUENCES ABOUT COVID-19 CUT BY HIPERMODERNITY INTERFACES IN UNIRV'S PEDAGOGY FACULTY

A educação não consiste em um advento fora da sociedade, pois está imbricada em todas as esferas das relações humanas. Nessa via, este artigo visa apresentar como ocorreu a adesão ao ensino não presencial na educação superior goiana frente ao distanciamento social e a reinvenção da prática pedagógica na sociedade hipermoderna, tomando como âncora de estudo a Faculdade de Pedagogia da UniRV. Para tanto, questiona-se: Como a hipermodernidade se materializa na educação na educação superior goiana? Quais são as influências acerca da Covid-19 entrecortadas pelas interfaces hipermodernas para a reinvenção da prática pedagógica frente ao distanciamento social de 2020?  Como reagiram os sujeitos da educação superior? No que tange à metodologia de pesquisa, busca-se, na relação com o objeto, descrever quais são esses processos e influências na instituição observada. Os procedimentos técnicos, deste estudo, são pautados em: documentos que regimentaram o distanciamento social em Goiás, além de leituras bibliográficas por meio das quais se alude ao conceito de sociedade hipermoderna e, por fim, ex-post-facto com vistas aclarar como a faculdade incorporou a aula não presencial em momento de crise sanitária.Education is not an advent outside of society, as it is interwoven in all spheres of human relations. In this way, this article aims to present how adherence to non-face-to-face teaching in Goiás higher education occurred in the face of social detachment and the reinvention of pedagogical practice in hypermodern society, taking the UniRV Faculty of Pedagogy as the study anchor. Therefore, ask yourself: How does hypermodernity materialize in higher education in Goiás? What are the influences on Covid-19 interrupted by hypermodern interfaces for the reinvention of pedagogical practice in the face of the social distance of 2020? How did higher education subjects react? Regarding the research methodology, it is sought, in relation to the object, to describe what these processes and influences are, in the observed institution. The technical procedures of this study will be based on: documents that regulated social distance in Goiás, in addition to bibliographic readings through which the concept of hypermodern society is alluded to and, finally, ex-post-facto in order to clarify how the faculty incorporated non-classroom classes in times of health crisis

Cutting energy required during the mechanical processing of wood species at different drying stages

The aim of this study was to know the variation profile of the specific energy consumption required to cut woods with varying densities and moisture contents. Therefore, peripheral cuts were performed in the longitudinal direction of the grain with numerical control controlled by Computational Numerical Command in woods of different densities, established at different drying stages. An energy analyzer, capable of calculate the specific energy consumed during the wood processing, was used to measure the energy information. The results indicated that the higher the wood density, the greater the positive influence of the moisture content on the specific cutting energy. In the anhydrous condition, the higher the wood density, the higher the cutting energy. With increased moisture content, less cutting power was required during the wood processing. Therefore, it was possible to conclude that during the milling type mechanical processing of wood, moisture content has a great influence on the specific cutting energy consumption

A new gravitational N-body simulation algorithm for investigation of cosmological chaotic advection

Recently alternative approaches in cosmology seeks to explain the nature of dark matter as a direct result of the non-linear spacetime curvature due to different types of deformation potentials. In this context, a key test for this hypothesis is to examine the effects of deformation on the evolution of large scales structures. An important requirement for the fine analysis of this pure gravitational signature (without dark matter elements) is to characterize the position of a galaxy during its trajectory to the gravitational collapse of super clusters at low redshifts. In this context, each element in an gravitational N-body simulation behaves as a tracer of collapse governed by the process known as chaotic advection (or lagrangian turbulence). In order to develop a detailed study of this new approach we develop the COsmic LAgrangian TUrbulence Simulator (COLATUS) to perform gravitational N-body simulations based on Compute Unified Device Architecture (CUDA) for graphics processing units (GPUs). In this paper we report the first robust results obtained from COLATUS.Comment: Proceedings of Sixth International School on Field Theory and Gravitation-2012 - by American Institute of Physic