@MastersThesis{Brito:2004:AmGrFl,
               author = "Brito, Rog{\'e}rio de Carvalho",
                title = "Ambiente gr{\'a}fico flyby para an{\'a}lise de padr{\~o}es 
                         gradientes de sil{\'{\i}}cio poroso",
               school = "Instituto Nacional de Pesquisas Espaciais (INPE)",
                 year = "2004",
              address = "S{\~a}o Jos{\'e} dos Campos",
                month = "2004-05-14",
             keywords = "computa{\c{c}}{\~a}o gr{\'a}fica, an{\'a}lise, 
                         triangula{\c{c}}{\~a}o, sil{\'{\i}}cio poroso, entropia, 
                         operadores de equa{\c{c}}{\~a}o diferenciais (matem{\'a}tica), 
                         computer graphics, analyzing, triangulation, porous silicon, 
                         entropy, differencial equations operators (mathematics).",
             abstract = "A pesquisa em sil{\'{\i}}cio poroso, realizada desde 1956, teve 
                         um avan{\c{c}}o muito importante em 1990 com a descoberta da 
                         propriedade de fotoluminesc{\^e}ncia do material. A partir 
                         da{\'{\i}}, in{\'u}meras t{\'e}cnicas de 
                         caracteriza{\c{c}}{\~a}o v{\^e}m sendo empregadas para uma 
                         melhor compreens{\~a}o dessa estrutura e de suas propriedades, 
                         tanto do ponto de vista b{\'a}sico, quanto de suas 
                         aplica{\c{c}}{\~o}es tecnol{\'o}gicas. Neste trabalho foi 
                         desenvolvida uma nova ferramenta baseada na t{\'e}cnica conhecida 
                         como Gradient Pattern Analysis, denominada GPA-Flyby, objetivando 
                         auxiliar o trabalho de caracteriza{\c{c}}{\~a}o e estudo das 
                         propriedades intr{\'{\i}}nsecas do sil{\'{\i}}cio poroso. 
                         Atrav{\'e}s de operadores computacionais incorporados em seu 
                         c{\'o}digo fonte e de um sistema de visualiza{\c{c}}{\~a}o em 
                         tr{\^e}s dimens{\~o}es, uma imagem de sil{\'{\i}}cio poroso 
                         obtida atrav{\'e}s de microscopia eletr{\^o}nica ou de 
                         for{\c{c}}a at{\^o}mica, pode ser caracterizada quanto a sua 
                         fragmenta{\c{c}}{\~a}o assim{\'e}trica de amplitudes e quanto 
                         ao grau de desordem de fases, enquanto se navega sobre a estrutura 
                         superficial do material. ABSTRACT: The porous silicon research, 
                         developed since 1956, had a very important advance in 1990 after 
                         the discovery of its photoluminescence property. Therefore, many 
                         characterization techniques have been used in order to understand 
                         material structures and their related properties, even from a 
                         basic point of view as from their technological applications. In 
                         this work, a new tool, called GPA Flyby, based on the Gradient 
                         Pattern Analysis technique, was developed to provide a better 
                         structural porous silicon characterization, improving the 
                         investigation on their porosity properties. Through computational 
                         operators incorporated in its source code and a three dimensional 
                         viewer, a porous silicon image, obtained by means of electronic 
                         microscopy or scanning force microscopy, can be characterized by 
                         means of its asymmetric amplitude fragmentation and its degree of 
                         phase disorder, while navigation on the material structure is 
                         performed.",
            committee = "Ramos, Fernando Manuel (presidente) and Rosa, Reinaldo Roberto 
                         (orientador) and Beloto, Antonio Fernando (orientador) and 
                         Carrara, Valdemir and Salvador, Jos{\'e} Ant{\^o}nio and Silva, 
                         Antonio Ferreira da",
           copyholder = "SID/SCD",
         englishtitle = "Development of flyby environment for gradient pattern analysis 
                         with application to the study of porous silicon samples",
             language = "pt",
                pages = "120",
                  ibi = "8JMKD3MGPBW/3CADN48",
                  url = "http://urlib.net/ibi/8JMKD3MGPBW/3CADN48",
           targetfile = "publicacao.pdf",
        urlaccessdate = "06 maio 2024"
}