899 resultados para Temperature to digital converter
Resumo:
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Resumo:
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Resumo:
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Resumo:
As regiões do Rio Capim e do Rio Jari são os principais distritos caulinitícos da Região Amazônica, detentores das maiores reservas brasileiras de caulim de alta alvura para aplicações como cobertura de papel. No processamento do caulim são gerados vários tipos de resíduos processados e não processados. O objetivo deste trabalho foi investigar a reatividade das pozolanas produzidas a partir da calcinação e moagem destes resíduos, avaliando a influência da mineralogia de cada tipo de caulinita (com maior ou menor quantidade de defeitos na estrutura cristalina) sobre a temperatura de queima e, consequentemente, nas características do produto final, de modo a obter o material de maior reatividade com um menor dispêndio de energia. Os resultados mostraram que as pozolanas produzidas a partir dos resíduos apresentaram alta reatividade, sendo inclusive superiores as das obtidas com as pozolanas disponíveis comercialmente. As pozolanas produzidas das caulinitas com maior grau de defeitos na estrutura cristalina demandaram temperaturas mais reduzidas que a com menor grau de defeitos. O emprego de caulinitas com maior quantidade de defeitos na estrutura cristalina reduz os custos de produção das pozolanas, sem que haja perda de qualidade ou de reatividade do produto.
Resumo:
Pós-graduação em Design - FAAC
Resumo:
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Resumo:
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
Resumo:
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
Resumo:
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Resumo:
Techniques of image capture have advanced along with the technologies of information and communication and unthinkable numbers of information available and imagery are stored in digital environments. The objective of this study is point out difficulties found in the construction of imagetic representations of digital resources using the instruments available for the treatment of descriptive information. The results we have the mapping of descriptive elements to digital images derived from analyzing of the schemes to guide the construction of descriptive records (AACR2R, ISBD, Graphic Materials, RDA, CDWA, CCO) and the conceptual model FRBRer. The result of this analysis conducted the conceptual model, Functional Requirements for Digital Imagetic Data RFDID to the development of more efficient ways to represent the use of imagery in order to make it available, accessible and recoverable from the data persistence descriptive, flexibility, consistency and integrity as essential requirements for the representation of the digital image.
Resumo:
The usability and accessibility, when applied to digital information environments, provide ease of use and access to information, respectively. Thus, we aim to discuss these concepts and apply them in specific digital environments to the elderly through the documentary and bibliographic study of specific recommendations on projects for elderly users. This study was conducted in conjunction with students at the Universidade Aberta à Terceira Idade (UNATI) - UNESP - Marilia, who assisted in the classification of recommendations for usability and accessibility are essential (Priority 1), important (Priority 2) and optional (Priority 3). The results indicate the importance of this type of study for the digital and social inclusion of older people by facilitating elements of access and use of information, providing the building more inclusive informational architectures. The resulting recommendations can be used as a starting point for the design of digital environments for the elderly in a specific heuristic evaluation, for example. However, it remains important to the application of usability testing with users, including the application to validate these recommendations, since different contexts may arise from the implementation of different elements, resources and information services.
Resumo:
Techniques of image combination, with extraction of objects to set a final scene, are very used in applications from photos montages to cinematographic productions. These techniques are called digital matting. With them is possible to decrease the cost of productions, because it is not necessary for the actor to be filmed in the location where the final scene occurs. This feature also favors its use in programs made to digital television, which demands a high quality image. Many digital matting algorithms use markings done on the images, to demarcate what is the foreground, the background and the uncertainty areas. This marking is called trimap, which is a triple map containing these three informations. The trimap is done, typically, from manual markings. In this project, methods were created that can be used in digital matting algorithms, with restriction of time and without human interaction, that is, the creation of an algorithm that generates the trimap automatically. This last one can be generated from the difference between a color of an arbitrary background and the foreground, or by using a depth map. It was also created a matting method, based on the Geodesic Matting (BAI; SAPIRO, 2009), which has an inferior processing time then the original one. Aiming to improve the performance of the applications that generates the trimap and of the algorithms that generates the alphamap (map that associates a value to the transparency of each pixel of the image), allowing its use in applications with time restrictions, it was used the CUDA architecture. Taking advantage, this way, of the computational power and the features of the GPGPU, which is massively parallel
Resumo:
The displacement of writing emerged in urban centers due to its investment in technology and has been developed in major newspapers around the world. With the advent of the internet and technological development, the writing went from analog to digital. That made it no longer required the presence of the journalist in the physical redaction means modifying the various management structures of a writing routine and professional. This happened to capture, edit and distribute your notes, news and reports in online mode. This monograph aims to understand and define the macro change of virtualization in journalism, considering the stages of production of Le Monde Diplomatique, a newspaper whose writing is in process of deterritorialization, the people involved in this activity and the resources used and contributing to the debate on new forms of organization of an editorial environment
Resumo:
To isolate, to concentrate and to purify bacteriophages from isolates of P. aeruginosa; To observe the capacity of bacteriophages to infect isolates of P. aeruginosa susceptible and multiresitant to antimicrobial; To caractherize bacteriphages by electronic microscopy techniques. 10 isolates of Pseudomonas aeruginosa from LEMC culture collection were submitted to the experiments of ideal temperature for the lyse region appearance in the MaConkey culture plate and 2 extraction methods for the concentration of the phages, clorophorm (Silankorva) and filtration plus centrifugation (Bergan). Three infected clinical isolates of multiresistant P. aeruginosa an one susceptible isolate ( PA01) were evaluated by 3 transmission electron microscopy techniques to caractherize phages morphologically (“on grid”, “on drop” and direct extraction from the lyse region of the culture plate). The ideal temperature to obtain lyses region was 37°C. The stock solutions, obtained through the methodologies of Sillankorva and Bergan, had satisfactory results in infecting the multiresistant isolate and the negative control. Among the 3 techniques of electronic microscopy tested the direct from the lyse plate was the best to obtain the micrography of the phages
Resumo:
In recent years, increasing demand for energy has led to studies to increase the amount of electricity produced. Due to this fact, more and more boilers are becoming important sources of electricity generation. To raise the efficiency of energy generated in the boilers is necessary to raise the steam pressure and temperature to values previously unimaginable. The use of more resistant materials and maintenance practices and most appropriate operation made it possible. The objective of this study is to test the main types of failure in a chemical recovery boiler, in particular due to fatigue in the superheater, because it is a component subjected to high temperatures and thus more subject to different failures. In this manner this study aims to reduce the incidence of unscheduled maintenance shutdowns, increasing the operation time under appropriate conditions. Modeling performed in this study, the failure did not occur, because we considered only the mechanical stress. Under normal conditions, mechanical stress in combination with thermal stresses can cause cracks in the tubes due to cyclical stresses, leading to fatigue failure