995 resultados para Implementação eletrônica


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The Policy Pedagogical Project can be understand like a guide element of education actions, that links itself to a history social project, bringing an specific way to understand the school and its function in society. The actual brazilian legislation is based on inclusive educational policy defended since 1990 by Ministry of Education. Faced this situation the present research intends verify if the schools are organized to act into this new paradigm, using analisis of the Policy Pedagogical Projects. That's why were analized the projects of 6 public schools of basic study that attend impaired students in regular classes. Those projects were analized based on a inclusive school indicators purposed by the Ministry of Education, that is based on a specific theorical reference and on determined actions that favor the impaired student learning. The data pointed that the majority of schools shows in theorical camp assumptions vinculated to Inclusive Education Policy. However, the presented actions are still shy and limited, so there is no differentiated purpose that attend the educational needs of impaired students. It concludes that the speech about inclusive education have already been assimilated by the school, however the actions are still begginers. The Pedagogical Project colectively built, could constitute an effective instrument to think about an make a quality school, an emancipatory school for all.

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

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A remoção da smear layer é um procedimento importante para a regeneração periodontal e para o tratamento da sensibilidade dentinária. Diversos tratamentos tem sido realizados para sua remoção, porém, mostrando resultados conflitantes ou insatisfatórios. No presente estudo nos propomos a analisar através do microscópio eletrônico de varredura a eficiência dos detergentes: lauril sulfato de sódio, Plax e de mamona assim como o EDTA 24% na remoção da smear layer. Todos os produtos testados foram aplicados com bolinha de algodão, renovada a cada 30 segundos, a qual era esfregada na superfície radicular por diferentes períodos. As fotomicrografias foram analisadas através da aplicação de um índice de remoção da smear layer por três examinadores calibrados e os resultados analisados estatisticamente. De acordo com nossos resultados pudemos chegar as seguintes conclusões: 1- a instrumentação com curetas de Gracey provocou a formação da smear layer; 2- o detergente lauril sulfato de sódio não removeu a smear layer, tendo sido o pior resultado entre os detergentes testados; 3- Os detergentes Plax e de mamona mostraram resultados semelhantes entre si e superiores ao controle negativo e ao lauril sulfato de sódio, porém, não removeram a smear layer satisfatoriamente; 4- O EDTA 24% neutro mostrou ser eficiente para a remoção da smear layer.

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ISO 26000, published in 2010, focuses on corporate social responsibility. This study presents a systematic review conducted in ISI Web of Knowledge (Web of Science) and Elsevier's Scopus databases to answer the following question: What are the barriers and motivators affecting the adoption of ISO 26000 by organizations? The articles were selected using filters that applied two inclusion criteria. The data were summarized in a table covering the concepts of ISO 26000, the motivators, and the barriers. The motivators were globalization or competition in international markets, congruence with management systems, reputation or image, relationship with employees and improvement of the organizational environment, improvement in the relationship with external stakeholders, competitive advantage and strategy, guide to corporate social responsibility (CSR), and reduction of business risks. The barriers were lack of alignment between CSR and organizational strategy; business (national and international); unfamiliarity with ISO 26000; lack of communication, tools and sensitivity to the subject; short-term focus; knowledge management; fear of not fulfilling the standard; and financial resources. Finally, an agenda for future studies was prepared.

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Due to environmental concerns and the current legal requirements, companies are looking for ways to reconcile economic growth with environmental preservation. The purpose of this project is to show the stages of implementation of ISO 14001 in a chemical company and propose changes in chemical procedures creating goals to be achieved. In this paper, the study for the implementation of ISO 14001 is in Viapol ltda., where the lack of environmental management can cause enormous impact to the environment and may generate air, soil and water pollution. The project resulted in a mapping of all the processes and a broad survey of waste and emissions, generating proposals to change some of the processes and and creating programs to achieve the goals and objectives proposed in the Environmental Policy. Adopting an environmental management system (EMS), the company will reduce costs by decreasing the amount of raw material used, shooting down on waste disposal and the amount of it, and increasing productivity. By committing to the implementation of the EMS, companies will be demonstrating a proactive approach to environmental issues and enrich its image to consumers’ point of view

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The objective of this paper is show the development of an Eletronic Control Unit (ECU) for Baja-SAE vehicles from its requirements to final implementation. An ECU for Baja-SAE vehicles is made of electric and electronic circuits (appropriated to the hostile situations of an off-road competition) able to make important measurements for the running or stand-by vehicle performance. For this development, some concepts were studied: embedded electronics concepts (mainly microcontrollers and data acquisition circuits) and sensoring. Both the studies were made considering the off-road environment. After these initial studies, the elaboration of the basics hardware and software (under simulations) has begun, and this elaboration objectives maximum performance and low implementation cost. After the theorical studies, basic definition of the hardware and software’s architectures and simulations, the printed circuit boards (PCB) were made, as exhaustive tests in these boards for debugging and verify if the boards work well. Once the system was tested in the university, it ran into a regional Southeast competition in 2010, that definitely proved the efficiency of the whole system

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Diuron (3-(3,4-Dichlorophenyl)-1,1-dimethylurea) is a substituted urea herbicide widely used on agricultural crops such as soy, cotton and sugar cane. In a previous long-term study this herbicide exerted carcinogenic activity on the urinary bladder and renal pelvis mucosa of Wistar rats and breast of mice. Also, it was shown to be carcinogenic to the mice skin in a initiation-promotion assay. In 1997, the northamerican EPA evaluated Diuron as a “known/likely” carcinogen for humans (USEPA, 2004). In a previous study developed at this laboratory, male Wistar rats treated with Diuron 2500 ppm during 20 weeks presented increased indices of cell proliferation and incidences of simple urothelial hyperplasia (HS) in the urinary bladder. Under scanning electron microscopy (SEM) severe urothelial necrosis and hyperplasia were observed. However, in that study the urinary bladders of animals exposed to lower doses of Diuron were not examined under SEM. Therefore, the possible dose-response influence of Diuron on the urothelium under SEM is not known. The present study aimed to analyze under SEM the urinary bladder of male Wistar rats exposed to 125 ppm, 500 ppm and 2500 ppm doses of Diuron through diet during 20 weeks and to compare to the previous histological findings in the same material. Under SEM, 125 ppm and 2500 ppm groups presented significantly (p<0,05) increased incidences of simple hyperplasia, i.e., 7/10 and 8/10 respectively, compared to control group and the 500 ppm group The sensitivity of SEM was higher since it detected a 45% incidence of hyperplasiaswhile the histological analysis found only 27%. Considering SEM as the gold-standard, histology showed a 44% sensitivity, 86.4% specificity, a positive predictive value of 72,7% and negative predictive value of 65,5% and accuracy of 67,5%. Scanning Electron Microscopy...(Complete abstract click electronic access below)

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This paper discusses the importance of energy efficiency and the use of alternative energy sources, facing to the increasing energy demand and the concomitant economic, social and environmental restrictions imposed by society. In this work, alternative sources are illustrated by photovoltaic, micro turbines and fuel cells microgeneration systems. Energy efficiency is presented by direct current microgrids because its uses excludes the conversions of direct current (DC) to alternating current (AC) losses made with the intention of injecting energy into the electric grid and then the inverse conversion, AC to DC, in order to feed residential loads. The object of this paper is to analyze a case study and evaluates the costs and technical feasibility of a Project that combines a DC microgrid and a microgeneration system

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In our experiments, we studied the classical dynamic of a particle in vertical motion subject to a constant gravitational field and the partial shock with an elastic wall with oscillatory motion located below the particle. The motion of the particle was confined to the vertical direction by a glass guide tube, which was initially evacuated, allowing viscous drag forces to be disregarded. The time between impacts, as well as the time between the reference phase of the movement of the base and the moment of impact and the period of oscillation of the base will be acquired by a hardware and software to obtain the phases space to be compared later with the description of the system through mapping discrete variables via the 'particle velocity immediately after shock 'and' phase of the movement of the base at the instant of shock 'obtained by computer simulation. This requires developing an electronic analog system followed by Digital implemented in reconfigurable logic, more specifically a sequential machine able to discriminate the impact with the metal base from the impacts of the glass guide tube, based on the frequency spectrum of the response of the microphone to these different impacts

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Nowadays, there is a need for improvements in production processes for companies to be competitive, as it is an obligation of businesses, it is necessary to know about the production processes accurately, to learn where improvements in work and thus have large impacts results. The calculation of efficiency of production lines is necessary to know as much about the progress of production and for product costing, when the measurement is not suitable, it generates negative impacts on the company. Due to the impact generated by this parameter, the graduation work carry out the study of change in a method that does not include all requirements necessary, by another method known as Overall Equipment Effectiveness, and according to studies, covering various parameters, showing become more consistent. These values are contained in the pattern production which is used to fund the product, thereby also occur financial impacts. Thus the work will study the change along with the analysis of impacts caused by the change

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This paper presents a study on the development of a manufacturing system of printed circuit boards through copper milling. An advantage of this system is the replacement of chemical processes by physical process presenting a sustainable solution. The paper uses programs that will generate G-code needed to establish the coordinates where the milling forms the tracks. After obtaining the code, it will be transformed into steps that will be sent through the serial port to the microcontroller and the serial communication control will be in software. After obtaining information the microcontroller will execute the movement of the stepper motors through their drivers, H-bridge, the microcontroller also drives the spindle motor responsible for rotating the grinding tool, using a driver with a optocoupler and TRIAC

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La mission de ce rapport se trouvée dans un projet major de mise en place de la TPM dans l’usine de Biotechnologie à Huningue. Le même sera utilisé comme pilote pour les autres sites de l’entreprise. Le but spécifique de ma mission au sein de Novartis, était d’identifier les activités principales des équipes de maintenance, étudier la façon de travailler et la manière comment ils étaient renseignées dans leurs Ordres de Travail (OT). Ensuite, proposer un standard de flux de travail et façon de renseigner les OT et ainsi organiser la façon de travailler et pouvoir planifier les activités de maintenance, ayant une bonne base de données pour faire les indicateurs

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In uncertainly economic scenarios, an economic feasibility analysis must be done to accept a project based on investment criteria, such as NPV and IRR, mainly because the shareholders tend to invest their budget in a project if it has a great chance to return their investments. The studied company outsources all of its foundry services, what makes it very dependent of its suppliers, because the products have a lower quality level, long delivery periods and high prices. Therefore, this work will analyze the project of building an iron-casting foundry to decrease the dependence of its suppliers. In order to develop this research, all needed data related to the construction of the foundry and sales were collected to create deterministic and probabilistic (Monte Carlo Simulation) cash flows using MsExcel® and Oracle's Crystal Ball® software. As a result, the project was found to be risky by the NPV and IRR in the case of this new production line supplying only the internal needs. However, when the company offers its services to the foundry market, the project turns to be feasible

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Fossil fuels are the main energy sources of the modern industrial age. Very sophisticated processes have been developed to extract these resources, due to increased demand on a global scale, as the extraction of oil. However, the complexity of these processes can cause accidents such as the release of oil to seas and oceans. In this context, this study proposes to carry out the implementation of a system of information to charts of environmental sensitivity to oil and prepare maps of vulnerability to oil for the city of Caraguatatuba-SP. The implementation of the database with geographical information of coastal environments was appropriate to be provided by the Internet, allowing wide access of data. The maps of vulnerability are important tool developed for the Individual Emergency Plans, because they were developed in operational scale, appropriate to actions to combat oil.