A importância da convergência tecnológica nas áreas de telecomunicações como ferramenta estratégica ao desenvolvimento regional: uma visão dos stakeholders

Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia de Produção.O Estado do Amazonas, em decorrência de suas características geográficas, sempre apresentou, por um lado, grandes dificuldades de comunicação. Por outro lado, a sua história econômica e cultural contribuiu para a conservação de seus recursos naturais. Hoje, a floresta amazônica apresenta 98% de sua vegetação preservada. Assim, o objetivo geral deste trabalho consiste em demonstrar a importância da convergência tecnológica na área de telecomunicações, principalmente no que diz respeito à sua utilização para o desenvolvimento sustentável do Estado do Amazonas, na visão de importantes stakeholders. Por conseguinte, este trabalho apresentou um estudo relacionando o advento da globalização da economia, o conceito de desenvolvimento sustentável e o avanço tecnológico na área das telecomunicações, assim como a visão dos stakeholders selecionados, quanto à utilização da convergência tecnológica como ferramenta para o desenvolvimento sustentável do estado, visando, principalmente, a conservação de seus recursos naturais e o bem-estar da população interiorana. De Maneira geral, constatou-se que o desenvolvimento sustentável no tocante a convergência tecnológica preconizada para o Estado do Amazonas, apresenta-se ainda incipiente, sendo até mesmo ignorado o seu conceito pela maioria dos stakeholders entrevistados. Finalmente, apresenta-se, neste trabalho, sugestões para futuras pesquisas, que possam contribuir para a elucidação dos interesses políticos em nível nacional e local, assim como recomendações que possam contribuir para o desenvolvimento sustentável da região

Barrido de frecuencia en coordenadas de fase Frequency scan on phase-coordinates

El análisis de redes eléctricas ha transitado de modelos en componentes de secuencia a modelos en coordenadas de fase. La formulación del barrido de frecuencia en coordenadas de fase, además de facilitar la modelación más precisa de las redes desequilibradas, permite especificar inyecciones armónicas de cualquier tipo: monofásicas o trifásicas de la secuencia deseada. Por lo que puede estudiarse el efecto de las cargas no lineales de acuerdo a sus características y conexión al circuito. El presente trabajo desarrolla el modelo en coordenadas de fase de una red eléctrica, considerando la representación de bancos de transformadores monofásicos de tres o dos transformadores, así como otros tipos de asimetrías que pueden encontrarse en los sistemas eléctricos de instalaciones industriales, de edificios comerciales o de servicio. El modelo desarrollado se prueba con un ejemplo sencillo de un sistema delta a cuatro hilos que permite destacar las posibilidades del modelo.The electric networks analysis has upgraded from the sequence components frame models to the phase- coordinates frame models. The formulation of the frequency scan method in a phase- coordinates frame, besides allowing for a more accurate modeling of unbalanced networks, allows the specification of harmonic injections of any type: single-phase or three-phase of the desired sequence. Therefore, it is possible to study the effect of the non-linear loads according to its features and connection to the circuit. This paper develops the phase-coordinates model of a distribution power system, considering the representation of three-phase transformer banks of three or two single-phase transformers, as well as other asymmetries that can be found in the electrical systems of industrial plants, commercial or service facilities. The frequency scan based on the presented model is tested with a simple example of a four-wire delta system that highlights the possibilities of the mode

Proposal for the development of burn-in inline

Advanced manufacturing promises to significantly impact the economy in various branches and industrial segments, such as metallurgy and agribusiness. Therefore, the aim is to develop a new product implemented at the company Transire, an automated system for storage in a controlled temperature environment, testing and test monitoring in real-time of its final products. Thus, this article can be considered exploratory, applied, and qualitative under the aspects of bibliographical research and case studies. Data collection was through meetings with company professionals, technical visits, and research on the importance of the topic. The results showed that the main stages of development of the Burn-In Inline were validated and that studies of production capacity associated with these developments can generate factory modernization and greater competitiveness among companies in the fiel

IoT System for Ultraviolet Ray Index Monitoring

Este artigo apresenta um sistema de monitoramento de índice ultravioleta usando aplicativos de IoT. O objetivo é auxiliar na prevenção de doenças causadas pela radiação solar ultravioleta por meio de mensagens de aviso com medidas preventivas a cada alteração no nível do índice ultravioleta ao longo do tempo. O monitoramento do índice de UV é de fundamental importância para a prevenção de várias doenças, como câncer de pele, doenças cardiovasculares, falta de cálcio e outras. O sistema apresentou bons resultados no monitoramento do índice UV, apresentando valores medidos dos índices UV de acordo com a radiação solar observada durante os experimentos, classificados de acordo com a Organização Mundial de Saúde (OMS)

Process of Establishment And In Vitro Development of Simaba Cedron Planch Seedlings. (Simaroubaceae)

Simaba cedron, popularly known as "cedron", is largely used for fever and snake bites. Its seeds are used in the treatment of stomach problems and liver infections. The fruits are used for the treatment of pain and malaria while its bark is an antispasmodic. Simaba cedron is generally propagated through seeds, but with limited success, as the low viability of same restricts its propagation. In view of such difficulty, it becomes necessary the study for adequate conditions for the large scale production of these seedlings. Being it known that in several species, the use of micropropagation has made it possible to obtain a large amount of disease-free and more homogeneous seedlings, in reduced time and physical space, in comparison with conventional propagation methods, the objective of this work was to analyze the effect of two culture media on the production of aseptic parent plants as a first step in the development of a micropropagation protocol for Simaba cedron. The seeds were collected from a matrix plant located in the Amazon Biotechnology Center (CBA), in Manaus/AM. The experiment was installed at the Vegetable Tissue Culture Laboratory, where the  explants were desinfected and grown in culture medium  according to Murashige & Skoog (MS) and in Wood Plant Medium (WPM), during 60 days. The disinfestation rate obtained was 75% and, of the disinfested seeds, 100% germinated. The cultivation medium that was more favorable to the cultivation of simaba was the MS, where the multiplication rate was of 8.0: 1, whose seedlings reached, in average, 4.8 cm and 75% of rooting

Analysis of the quality of the welding process in the exchange of component of BGA technology

In recent years, many efforts have been expended by companies in the search for technological improvement of their products by adding features such as lightweight materials, reduced size and high levels of performance at the lowest cost, to meet a worldwide demand in this regard. This article aimed to conduct an analysis of the quality of the Reflow of soldering in exchange of component of BGA technology. The methods and techniques used were the qualitative-quantitative approach, conducted by the case study technique in the welding process of the BGA component by collecting (cross section and X-ray) and data analysis (alignment, cracks and voids) within the process. The achieved results showed that the Reflow welding process in the exchange of BGA component meets the criteria for acceptance of international standards IPC -A - 610E and IPC 7095B. This fact leads to the inference that the quality of the process in question may reflect in better conditions and cost competitiveness for the investigated organization