Avaliação de desempenho do dispositivo de medida de resistividade elétrica em laboratório

Pós-graduação em Engenharia Civil e Ambiental - FEB

Projeto e construção de um dispositivo para testes em coluna vertebral

Pós-graduação em Engenharia Mecânica - FEG

Projeto de um dispositivo para prensar bobinas polares de pólos salientes para hidrogeradores

The increasing demand for productivity and quality in companies has converged to a common point: reducing costs. In this context the present work aims at the development of a mechanical press which is designed for pressing polar hydrogenerators coils with salient pole in field facilitating the assembly of the poles in the plant, as well as reforms especially in hydrogenerators, reducing significantly the transport costs. With security in mind as well as reduced costs, a study was made of the materials to be used as it was applied a methodology for calculating the correct choice of safety factor to be used in the device. Through mechanical calculations were dimensioned critical items of the device as the diameter of the rods as well as the minimum thickness of the base of the device must have so that it does not break threaded shear in the region by applying the total load of traction on the risers implementation of the pressing. All compression loading device will be through the application of torque on the nuts of bolts in this way was defined by calculations the required torque for each nut so that you can reach the pressure specified in the design specifies. The modeling of the device was made using the INVENTOR™ program in conjunction with the program ANSYS ™. These programs have created designs in three dimensions, assembly and simulation of stress analysis in components of the device

As possibilidades estéticas e narrativas do dispositivo documental

Não disponível

Colheita de energia usando dispositivos baseados em materiais piezoelétrico

Recently, research on energy harvesting has increased substantially. Many researchers have concentrated their efforts to find the best configuration for these systems and to optimize their output power. In the process of energy harvesting, the electric energy is obtained by converting mechanics energy created by an environment vibration source by a transducer, for example, a thin piezoceramic film. That vibration source is, for example, a beam suffering some mechanic force able to generate a vibration in it, an oscillating beam is the best properly used example. Different mechanisms of electromechanical coupling have been developed to harvesting devices, and a particular interest has been given to the use of models that transform the mechanical vibration into electrical current using a piezoelectric element. In this paper we propose a model to energy harvesting from vibrations, from an oscillating beam, including non-linearities in the piezoelectric coupling and a non-ideal excitation in the material. From this model, it was developed a system to obtain some results about the harvested power by the material. It was demonstrated that the power captured was influenced by the effect of the nonlinearities of the piezoelectric coupling, modifying the system dynamic behavior

Proposta de um dispositivo para ajuste automático da altura de uma cama hospitalar

This paper proposes a mechanical device to adapt a simple model of hospital bed used in the Emergency Department at Santa Casa of Guaratinguetá, allowing the bed’s height adjustment with electromechanical drive. This adaptation aims to introduce improvements in the routine work of nurses and reduce ergonomic problems stemming from repetitive strain during the transfer of patients to stretchers and wheelchairs, as well as providing more comfort to the bedridden patient. The device is mainly composed of: an electric induction motor used to drive the engine, a steel spindle with square thread, which allows axial displacement of the bed, a transmission system with pulleys and belt, which transmits power supplied by the motor to the spindle. The mechanism allows the height of the bed is regulated between 400 and 800 mm. The estimated implementation cost of this proposal is lower than the acquisition cost of a commercial hospital bed with the same features, which confirms the feasibility of the proposed solution

Proposta de um dispositivo para adaptação em uma cama hospitalar para ajuste de altura

In hospitals, health professionals may face different situations and problems. By following them, it is remarkable that one of the difficulties is related to the support provided by the facilities to carry out their work. This also affects the quality of treatment offered to patients. One of the points of improvement that could be studied is hospital beds. The Fawler's simplest hospital bed type, used in most Brazilian public hospitals, is designed with an ergonomic average height that offers a default position for analysis and treatment of patients. There is no possibility of adjusting the height of those beds, and hence there is a limitation in this regard since that height is fixed, but the physical structures of the workers and patients may vary widely and there may be a conflict when there are people too large or small involved in this process. Beyond that, studies by experts show that beds with height adjustment decreases the muscular effort and improve the movement quality of the spine of nursing staff, reducing the force on certain vertebrae and also the ergonomic risk. Of course, patient comfort is also affected accordingly. As the beds made with height adjustment are very expensive, this study aims to design a device to adapt the not adjustable beds. The project must be viable from an economic and mechanic standpoint, being able to adapt both old and new simplest Fawler hospital bed models, since their dimensions are similar. The final result shows that it is possible to adapt such beds using the designed concept at a viable cost. Furthermore, this concept could be applied in other bed types or objects that have hollow feet

Dispositivo de microdescargas em gases na pressão atmosférica

Neste trabalho foi desenvolvido um dispositivo de microdescargas em gases à pressão atmosférica para geração de plasma a fim de ser utilizado no tratamento de superfícies. O trabalho foi baseado em um estudo de iniciação científica que aconteceu em duas etapas. Na introdução apresentam-se as motivações do estudo, o dispositivo desenvolvido na primeira etapa do trabalho bem como os primeiros resultados e propostas de melhorias. Definem-se os objetivos da segunda etapa, que contemplam modificações no dispositivo de descarga e na fonte de alimentação. Em seguida são explanados os métodos utilizados para confecção do dispositivo, construção da fonte de alimentação e circuito de fotodetecção para observar as descargas. Apresenta-se o modelo e configurações dos experimentos, os resultados obtidos são expostos e debatidos brevemente. Colocam-se as conclusões do trabalho e novas propostas de investigação e melhoramentos para o estudo das microdescargas. Seguem-se os agradecimentos aos envolvidos no projeto e, por fim, a bibliografia utilizada

O dispositivo de juventude e as políticas públicas no Brasil

Pós-graduação em Ciências Sociais - FFC

Dispositivo microfluídico de borracha natural (LAB-ON-A-CHIP)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

As tecnologias da informação no dispositivo pedagógico

Information technologies have enabled new forms of interactions among individuals, and can also be found in various educational institutions. However, despite appropriating new technological tools, educational practices continue to be based on a supposed pedagogical subject conceived as a transcendent way, ignoring his emergence and his origin in a particular historical period , and the control mechanisms by which is immersed. as well. This article aims to present results of an analysis on technology and education based on the thought of philosopher Michel Foucault. We analyzed proposals and discourses found in articles in a magazine entitled Patio - Revista Pedagógica.

De direito social a dispositivo de saúde: o trabalho na legislação de saúde vigente

Starting from the theoretical contributions of Michel Foucault and from a critical appraisal of the Declaration of Universal Human Rights and the 1988 Brazilian Constitution, this article maps the constitution of labor as a dimension that goes from social right to health device. In our analysis we find that labor as a social right and health device has a subjective protagonism and has social and economic aspects contemplated by documents. However in defining and orienting ways of being of individuals that work delivered speeches that fall in and control, hindering the openness of workers for movements of creation expansion of life and work in its positivity of experimentations. We conclude that is not enough to recognize labor as a social right, indicate its role as a health strategy or direct political efforts without problematizing not “what kind of work” can be supportive in a more creative construction of its own work and health.

O trabalho como dispositivo de atenção em saúde mental: trajetória histórica e reflexões sobre sua atual utilização

The partnership between Mental Health (MH) and work is present throughout the history of psychiatry. Capitalist society has used and uses the fitness or unfitness for work not only as one of the elements to the definition of "normality", but also as a treatment strategy. In this perspective, one can find a position healing and, more recently, a different proposal put forward by the psychiatric reform that considers also make / produce, the construction of meaning in the work as crucial for subjectivity. This sense is present in therapeutic workshops that seek to value the uniqueness, not to override the differences. The objective of this paper is to reflect on the relationship between Attention in SM / Work. Initially presents three theses, from which this relationship is built historically: 1 - Work as a means of avoiding idleness returning productively to society; 2 - Work as a healing practice, from the prescription, and 3 - Work as a strategy for care and social inclusion. Below, we discuss some questions about therapeutic workshops and income generation in the mental health care as a device for attention and social inclusion.

A formação docente no dispositivo pedagógico

The pedagogic device is constituted as a network of relationships that can be established between heterogeneous elements such as discourses, institutions, laws, administrative measures, scientific statements, philosophical propositions, ie, the said and unsaid. This paper aims to present an analysis on the theme "teacher training" from the perspective of the French philosopher Michel Foucault and his concept of the device. We performed the analysis of texts of the Patio magazine specializing in education.

O dispositivo metodológico e interventivo autoconfrontação e seus usos em pesquisas de educação

This article presents an academic and scientific study about the use of the device methodological and intervening of selfconfrontation in research in post-graduate studies in Education in Brazil. The self-confrontation is a device created by linguist Daniel Faïta and perfected by psychologist Yves Clot. She seeks to capture the multiple discourses and perspectives around a particular craft, integrating researcher and workers to facilitate the installation of a dialectical movement of analysis and production of knowledge about the work, ownership of these knowledge workers and the collective transformation of labor activity. We chose a qualitative approach and the realization of documental analysis of the abstracts of researches that resulted in the production of doctoral theses and dissertations held in Brazil between 1987 and 2011. Were examined studies that had their abstracts gathered and made available by the Coordenadoria de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) on its website. The results show that self-confrontation is used piecemeal studies produced in the area of Education, used primarily to collect data and to give less emphasis to the transformation of the labor process.