Digital Prototype
Mostrando 1-12 de 65 artigos, teses e dissertações.
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1. A Novel Dielectric Slab Antenna Based on Microstrip-Franklin Excitation for mm-Waves
Abstract This work reports the development of a novel dielectric slab antenna based on microstrip-Franklin radiators, which enables efficient impedance matching among microstrip lines, substrate and air. The proposed antenna has been designed and numerically evaluated using ANSYS HFSS®. Its directivity ranges from 6.67 to 16.24 dB, as its length is increase
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2020-06
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2. Monitoring of Sobradinho landslide (Brasília, Brazil) and a prototype vertical slope by time-lapse interferometry
Abstract The application of geophysical monitoring technologies may offer an opportunity to understand the dynamic of slopes in response to factors triggering their instability. In this study, Ambient Noise Interferometry was used as a monitoring approach on a man-made reduced-scale vertical slope and on a natural-scale landslide in Sobradinho (Brazil), unde
Braz. J. Geol.. Publicado em: 03/06/2019
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3. ASSEMBLY OF A REMOTELY PILOTED AIRCRAFT OF LOW COST APPLIED TO AGRICULTURE
ABSTRACT: The remotely piloted aircraft (RPA) have great applicability in agriculture. Although it is a technology that has been developed for many years, in the field of agriculture it passed unnoticed for a long time. The high cost of acquisition is still a limiting factor for small and medium-sized farmers. In this way, this study had as objective to deve
Eng. Agríc.. Publicado em: 2017-12
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4. Electromechanical Impedance - Based Structural Health Monitoring Instrumentation System Applied to Aircraft Structures and Employing a Multiplexed Sensor Array
ABSTRACT: The electromechanical impedance method has been seen as a promising tool for structural health monitoring regarding different types of structures and purposes. Most importantly, this method can be used in real-time applications. Frequently, massive, high-cost, single-channel impedance analyzers are used to process the time domain data, aiming at ob
J. Aerosp. Technol. Manag.. Publicado em: 2015-09
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5. IMPLEMENTAÇÃO DE UM SISTEMA DE TELEDIAGNÓSTICO PARA CLASSIFICAÇÃO DE MASSAS EM IMAGENS MAMOGRÁFICAS USANDO ANÁLISE DE COMPONENTES INDEPENDENTES / IMPLEMENTATION OF A SYSTEM OF TELEDIAGNOSIS FOR CLASSIFICATION OF MASSES IN MAMMOGRAPHIC IMAGES USING INDEPENDENT COMPONENT ANALYSIS
This thesis proposes the modeling and implementation of a telediagnostic system for analysis and detection of lesions in mammographic images based on independent component analysis and support vector machine. The system analyzes images from digital mammography sent over the Internet and provides a diagnostic, indicating the presence of suspicious regions, wh
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/07/2012
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6. Especificação de bibliotecas digitais de objetos complexos / Specification of digital libraries of digital complex objects
Digital libraries are advanced and complex information systems that store, aggregate, and manage correlated information. These systems are used by specific communities to access digital objects of interest. Due to the creation of huge collections of heterogeneous data (in terms of type and format), some of these data are organized in digital complex objects,
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2012
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7. 4iPay : modelo para sistemas de pagamento móvel em comércio ubíquo
This work aims at presenting a usability and architectural model for a mobile payment system. In our model, we assume independence of devices, of location, of mobile operator, and of administrator, to allow all kinds of payment in ubiquitous environments (Ubiquitous Commerce). In this work, we begin describing motivation, goals, and fundamental concepts, in
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/02/2012
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8. Um sistema de ensino de projeto baseado no conhecimento : sistemas generativos e ontologias aplicados no ensino de arquitetura paisagística / Developing a knowledge based design education method : using generative systems and onthology to teach landscape design
The purpose of this research is to present a case based system to support students during the search for a solution to a landscape design problem. The system model is based on computational theories applied to design, such as Alexander s pattern language, shape grammar and parametric modeling. In the system, a design concept, also called pattern, can be repr
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/10/2011
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9. Consulta a base de dados cifrada em computação nas nuvens
With the dissemination and popularization of the Internet, more and more people and businesses are using cloud computing services. Among these services, there is a storage and hosting of databases in the clouds. In this context a problem arises, how to ensure the privacy and integrity of databases that are exposed to attacks. The goal of this dissertation is
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/08/2011
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10. e-Rural: ambiente web para geração de conteúdos considerando a cultura e o nível de letramento do aprendiz
This paper describes the process of developing and prototyping environment high-fidelity to develop culturally contextualized hyperdocuments web, adapted and made available according to the level of literacy of the learner, so it has access to and can understand the information and technological knowledge allowing your individual improvement and professional
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/05/2011
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11. A teoria da classificação facetada na modelagem de dados em banco de dados computacionais
The study presents the Ranganathan‟s Theory of Faceted Classification (TFC) and the Database (DB) as Computational elements that enable the structuring of knowledge through the organization of concepts and creation of relationships. Contributions of Information Science (IS) for the research by defend the importance of organization for effective informa
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/03/2011
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12. VCom : uma abordagem para modelagem de ambientes colaborativos
First generation of web applications was responsible for the popularization of the network and the emergence of the first groups of Internet users. At that time, the web content was little interactive and web sites were limited in the aspects of configuration options and interface of the system. The Users were mere spectators of the actions that took place i
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/01/2011