O uso de elementos da criptografia como estímulo matemático na sala de aula

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Estresse, depressão e suporte familiar em pacientes em diálise peritoneal e hemodiálise

Pós-graduação em Psicologia do Desenvolvimento e Aprendizagem - FC

Matemática e estatística aplicadas a gestão da qualidadade nos cursos de Engenharia de Produção no Brasil: um contraponto entre a formação e o mercado de trabalho

Pós-graduação em Educação Matemática - IGCE

Estudo e análise de sistemas de refrigeração industrial integrados a plantas de processo químico

This work approaches the analysis of industrial refrigeration systems applied to a chemical processing industry that, in this case, consists of refrigeration machines, cooling tower system, cold water system and brine system. In this study it is highlighted the function and characteristics of different systems, including the main components, the most important features, their functionality and best practices. The motivation for this work is the fact that refrigeration systems are essential in many industrial processes, presenting a high energy consumption that is related to a significant parcel of production costs. It has aimed to understand the case studied in order to evaluate the energy efficiency of systems and to compare with Carnot efficiency and best available technologies. The assessment aims to identify irregularities, find opportunities and propose solutions that increases the performance of equipment and the overall system efficiency. Therefore, the studies intend to reduce the operation costs and generate gains for the company

Aplicação da fibra óptica em sistemas FTTX

The evolution in telecommunications with the extensive use of optical fiber following the technological expansion and data transmission demand becomes a necessity today. In this paper a literature review with technical concepts, feasibility of projects and applications in data collection with comparisons and highlights of the current situation of this advance is presented. The benefits of using optical fiber and the advantages of FTTH architecture are identified, as well as concrete and devised projects that make this theme reality and future prospects in the continuity of speed increase and allowed broadcasts growth

Impactos causados por vibrações mecânicas em chapas de alumínio no processo de laminação a frio

This paper purpose is to analyze one of the main problems faced by cold rolling industry of the current time, the mechanical vibration. Factors such as strips with high velocity in order to increase the productivity and thickness becoming thinner and thinner cause the vibrations to be present at all times during rolling. These market requirements also drive the industry for technology development and thus bring the challenges that the operation of a new modern equipment and more powerful. The initial purpose is to analyze the forces that cause vibration in a rolling mill type four high with two stands, where is desirable to identify the origins of these vibrational forces to make possible dismiss them or at least control its intensity, in order to prevent damage in the rolling mill and ensure product quality to the customer. For it, will be used instruments to record and store the vibrations that occur during the lamination process. With this data will be able to analyze the characteristics of the vibrations and act at your elimination. At the end of the work is expected to demonstrate how important the critical view of the engineer in the analysis of graphics combined with the calculations of the natural vibration frequency and engagement of key parts of the laminator. With these two tools at hand, will be possible to increase the productivity of the rolling mill and act preventively in maintenance, thereby reducing your downtime and increasing its performance and efficiency

Formação continuada de professores como um projeto coletivo e de identidade profissional

This research is part of the field of teacher training, especially developed the topic of continuing education. There is, according to the literature, the importance of this training for teachers as a sort of continuum, trajectory in which the teacher will (re) building their knowledge throughout their lives, in order to provide knowledge and values that add to your practice teaching. However, often the training activities are designed for knowledge transmitter model forming agent for the teacher, disregarding the different contexts of school communities, this strategy which hardly reaches the real needs of teachers in their daily lives. It is evident, too, the need to provide, in training moments, spaces to engage in dialogue and reflect on the teachers profession today, (re) building thus their teacher identity. In this context, the objective of this research is to examine whether the continued formation is configured as a collective construction and as a space for reflection on what it means to be a teacher. The research is characterized by a qualitative approach, and to collect data, we used the semi-structured interview technique. Participants were five teachers in the areas of Physical Education, History, English, Portuguese and Mathematics, a state school Treble city education (SP). The results show the importance of continuing education for teachers, which provides reflections, discussions, acquisition of knowledge and skills that contribute to its performance, motivating and developing strategies to enable them to face the challenges of everyday life and reflect collectively on what it means to be a teacher. It was concluded that continuing education for this group of teachers is configured as a space for collective construction, which together with other teachers rethink, reflect and continuously reconstruct their practices and objectives, and enables reflection on the teaching profession constantly. It will be essential, therefore...

Manejo de transição para agricultura orgânica, sob cultivo de citros (Citrus sinensis L. Osbeck), favorece a diversidade de fungos no solo

Pós-graduação em Ciências Biológicas (Microbiologia Aplicada) - IBRC