Real Environments
Mostrando 13-24 de 174 artigos, teses e dissertações.
-
13. New strategies for planning and performance evaluation of wireless networks: case studies based on the cross-layer approach
The use of wireless local area networks, called WLANs, as well as the proliferation of the use of multimedia applications have grown rapidly in recent years. Some factors affect the quality of service (QoS) received by the user and interference is one of them. This work presents strategies for planning and performance evaluation through an empirical study of
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2013-06
-
14. Técnica de realidade virtual para manipulação e deformação de superfícies NURBS
The Virtual Reality (VR) mainly deals with the creation of three-dimensional environments generated in real time and made available for multisensory interaction with different devices. A high processing capacity and modeling environments is required for applications of this nature. These applications currently extend to various productive sectors such as ind
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/10/2012
-
15. Integração entre redes heterogêneas de ativos digitais: modelo híbrido de metadados baseado em meta-modelos dinâmicos
The increased production of digital assets in enterprise environments makes digital asset management an increasingly complex task, since we must make use of well-defined metadata, so that you can easily find and use assets from different repositories. However, obtaining a standardized model that cover the peculiarities of all involved, is usually a highly co
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/08/2012
-
16. Evolving granular systems = : Sistemas granulares evolutivos / Sistemas granulares evolutivos
In recent years there has been increasing interest in computational modeling approaches to deal with real-world data streams. Methods and algorithms have been proposed to uncover meaningful knowledge from very large (often unbounded) data sets in principle with no apparent value. This thesis introduces a framework for evolving granular modeling of uncertain
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/07/2012
-
17. Segmentação de pessoas em imagens estáticas baseada em esqueleto
The segmentation of people (automatic or semi-automatic) in still images is a very challenging task, mainly due to several factors in the real world, such as those related to the lighting of the scene where the image was captured, shadows, image noise, occlusions, high similarity of the object of interest with the background of the scene and the lack of info
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/04/2012
-
18. Processos interacionais na Internet: análise da conversação digital / Interactional processes on the Internet: analysis of digital conversation
The emergence of the Internet sparked a revolution regarding to new forms of interaction between people, offering experiences of real-time communication, in the so-called virtual environments. In this scenario, new text genres emerge, opening up new possibilities for analysis from various perspectives. In this work, our study object is the digital conversati
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/03/2012
-
19. Uma arquitetura híbrida aplicada em problemas de aprendizagem por reforço / A hybrid architecture to address reinforcement learning problems
With the evergrowing use of cognitive systems in various applications, it has been created a high expectation and a large demand for machines more and more autonomous, intelligent and creative in real world problem solving. In several cases, the challenges ask for high adaptive and learning capability. This work deals with the concepts of reinforcement learn
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/02/2012
-
20. In-flight collision avoidance controller based only on OS4 embedded sensors
The major goal of this research was the development and implementation of a control system able to avoid collisions during the flight for a mini-quadrotor helicopter, based only on its embedded sensors without changing the environment. However, it is important to highlight that the design aspects must be seriously considered in order to overcome hardware lim
J. Braz. Soc. Mech. Sci. & Eng.. Publicado em: 2012-09
-
21. Distinct chitinases are expressed during various growth phases of the human pathogen Paracoccidioides brasiliensis
The aim of this work was the partial purification and subsequent evaluation of chitinase expression during the various growth phases of Paracoccidioides brasiliensis. Initially, PbCTS1r was expressed as a recombinant protein and displayed enzymatic activity against 4-MU-[N-acetylglucosamine (GlcNAc)]3 and 4-MU-(GlcNAc)2. Two proteins, 45 kDa and 39 kDa in si
Mem. Inst. Oswaldo Cruz. Publicado em: 2012-05
-
22. Modeling random corrosion processes via polynomial chaos expansion
Polynomial Chaos Expansion (PCE) is widely recognized as a flexible tool to represent different types of random variables/processes. However, applications to real, experimental data are still limited. In this article, PCE is used to represent the random time-evolution of metal corrosion growth in marine environments. The PCE coefficients are determined in or
J. Braz. Soc. Mech. Sci. & Eng.. Publicado em: 2012
-
23. A contribuição da Geomorfologia para o conhecimento da fitogeografia nativa do estado de São Paulo e da representatividade das Unidades de Conservação de Proteção Integral / The contribution of geomorphology to the knowledge of native phytogeography in the state of São Paulo and representativeness of the Conservation Units of Integral Protection
The analysis of native vegetation maps of the state of São Paulo elaborated throughout the XIX, XX and XXI centuries shows different possibilities for the interpretation of the state phytogeography, although it also reveals many converging aspects, e.g., forest types in the Atlantic façade adapted to higher moisture than those located in the interior of th
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/10/2011
-
24. Turismo de segundas residências: a degradação ambiental e paisagística das praias de Jacumã, Carapibus e Tabatinga Conde/PB
Using as starting point the geographical category of landscape and the concept of natural environment, this research sought to analyze changes on landscape and environment triggered by the tourism industry, especially by second-residence tourism. Given that tourism is one of the world s strongest industries and that in Brazil it is supported by municipal, st
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/05/2011