Light And Colours
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. Influence of eggshell colour on egg yolk antibody level, incubation results, and growth in broiler breeders
ABSTRACT This study was performed to determine the effect of shell colour in eggs acquired from Ross-308 broiler breeders on the interior and exterior quality of the egg, the antibody content of the egg yolk, and growth performance. The shell colours of a total of 1350 eggs were classified, using a colorimeter, into three groups: dark (E<64), medium (E:64.00
R. Bras. Zootec.. Publicado em: 2017-02
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2. DISCOVERING AND LABELLING OF TEMPORAL GRANULARITY PATTERNS IN ELECTRIC POWER DEMAND WITH A BRAZILIAN CASE STUDY
ABSTRACT Clustering is commonly used to group data in order to represent the behaviour of a system as accurately as possible by obtaining patterns and profiles. In this paper, clustering is applied with partitioning-clustering techniques, specifically, Partitioning around Medoids (PAM) to analyse load curves from a city of South-eastern Brazil in São Paulo
Pesqui. Oper.. Publicado em: 2016-12
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3. The impact of eggshell colour and spot area in Japanese quails: II. Slaughter and carcass characteristic
ABSTRACT This study was carried out to investigate the effects of eggshell colour and spot properties (colour and size of the spot area) on growth performance and carcass traits of Japanese quail (Coturnix coturnix japonica) eggs. Study material were allocated to five groups according to their eggshell and spot colours: black spots on greyish white coloured
R. Bras. Zootec.. Publicado em: 2016-09
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4. The impact of eggshell colour and spot area in Japanese quails: I. eggshell temperature during incubation and hatching results
ABSTRACT This study was carried out to investigate the effects of eggshell colour and spot properties (colour and size of the spot area) on eggshell incubation temperature and hatching outcomes of Japanese quail eggs (Coturnix coturnix japonica). Study material was allocated to five groups according to their eggshell and spot colours: black spots on greyish
R. Bras. Zootec.. Publicado em: 2016-05
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5. Thomas Young e o resgate da teoria ondulatória da luz: Uma tradução comentada de sua Teoria Sobre Luz e Cores
Este artigo contém uma tradução comentada do texto On the theory of light and colours de Thomas Young, publicado nas Philosophical Transactions da Royal Society de Londres em 1802. Com esta tradução, pretendemos, por um lado, discutir a contribuição de Young para o desenvolvimento da teoria ondulatória da luz e, por outro, oferecer subsídios para pr
Rev. Bras. Ensino Fís.. Publicado em: 2015-12
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6. Development of luminescent systems based on PHB and PMMA polymers doped with rare earth complexes / Desenvolvimento de sistemas luminescentes à base dos polímeros PHB e PMMA dopados com complexos de terras raras
This work presents the preparation, characterization and studies of photoluminescence properties based on trivalent rare earth coordination complexes of βdiketonates and salicylates (β-diketonates = acac- and tta-; salicylates = Hsal- and RE3+ = Sm3+, Eu3+, Gd3+ and Tb3+) doped into polymers PHB (poly3hydroxybutyrate) and PMMA (polymethylmethacryla
Publicado em: 2009
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7. Categorização do nível de letramento científico dos alunos de ensino médio / Categorizing the level of scientific literacy of high school students
Este trabalho teve início a partir da leitura de um artigo publicado em revista científica que questionava o letramento científico dos alunos brasileiros, de acordo com a avaliação feita em países pertencentes à OCDE e convidados, onde o Brasil ficou numa das últimas colocações. O objetivo deste trabalho foi elaborar a partir de teorias de pesquisa
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/11/2007
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8. Efeito de borda sobre a fenologia, as sÃndromes de polinizaÃÃo e a dispersÃo de sementes de uma comunidade arbÃrea na Floresta AtlÃntica ao norte do Rio SÃo Francisco
Background and aims The high plant species richness and the pollination mechanisms in the tropical forests are endangered by the loss of ecological groups, consequence of the forest fragmentation. The objective of this study was to evaluate the edge effect on the pollination and the reproductive systems of a tree community. Methods 600 tree individuals belon
Publicado em: 2006
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9. A STANDARDIZED LANTERN FOR TESTING COLOUR VISION
A Lantern for lesting Colour-Vision is arranged to show test colours in pairs as in the Board of Trade Lantern. It is adapted to use electric light, and is standardized by stringent testing. The paper discusses the experiments and considerations which led to the formulation of the allowable tolerances in the transmission and colour co-ordinate specifications
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10. Autumn tree colours as a handicap signal.
Many species of deciduous trees display striking colour changes in autumn. Here, we present a functional hypothesis: bright autumn coloration serves as an honest signal of defensive commitment against autumn colonizing insect pests. According to this hypothesis, individuals within a signalling species show variation in the expression of autumn coloration, wi
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11. Colour thresholding in video imaging.
The basic aspects of video imaging are reviewed as they relate to measurements of histological and anatomical features, with particular emphasis on the advantages and disadvantages of colour and black-and-white imaging modes. In black-and-white imaging, calculations are based on the manipulation of picture elements (pixels) that contain 0-255 levels of infor