Chromaticity
Mostrando 13-24 de 31 artigos, teses e dissertações.
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13. Optimization of extrusion variables for the production of snacks from by-products of rice and soybean
This study aimed to define the process conditions to obtain snacks from the by-products of rice and soybean with physical characteristics suitable for marketing. Therefore, the effects of moisture and extrusion temperature on the expansion and color of the products obtained experimentally obtained were evaluated, and the proximate composition of the by-produ
Food Sci. Technol. Publicado em: 2013-12
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14. Stability of frozen marolo pulp during storage
Marolo, also known as araticum or head-to-black, is a globular berry, a species native to the Brazilian savannah. The aim of this study was to evaluate the physical, chemical, and microbiological stability of frozen marolo pulp during 12 months of frozen storage. It was observed that the levels of ash (0.28-0.22%), protein (0.77-0.71%), lipids (1.75-1.73%),
Food Sci. Technol. Publicado em: 2013-12
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15. Quality of 'Delta Valencia' orange grown in semiarid climate and stored under refrigeration after coating with wax
The effects of carnauba-based wax on the quality of 'Delta Valencia' orange produced in Ceará state, Brazil, were studied. The fruits were coated with carnauba-based wax and refrigerated (7 ± 2 ºC and 85 ± 2% R.H.) for 28 days. The quality attribute parameters assessed were weight loss, peel color (brightness, hue angle, and chromaticity), peel moisture,
Food Sci. Technol. Publicado em: 10/05/2013
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16. Estudo sobre a influência da adição de pigmentos em propriedades de durabilidade e na cromacidade do concreto de cimento Portland branco / A study about the influence of the pigments addition in the durability properties and chromaticity of white Portland cement concrete
Sob o ponto de vista de durabilidade, os concretos cromáticos merecem atenção especial, não apenas pelas suas propriedades físicas e químicas, mas principalmente pela sua utilização como elemento arquitetônico, o qual permite a confecção de elementos estruturais aparentes, deixando-os assim mais suscetíveis à ação destrutiva das intempéries.
Publicado em: 2009
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17. Development of an electronic system of driver and control for perfomance evaluation of displays based on polymer LEDs. / Desenvolvimento de um sistema eletrônico de acionamento e controle para avaliação de desempenho de mostradores de informações baseados em LEDs poliméricos.
In this work it is presented the study and development of an electronic system of test for performance evaluation of polymer light-emitting diodes - PLEDs, or displays with up to 35 PLEDs in passive-matrix produced in laboratory. The drive and control requirements, based in structural and electric characteristics of PLEDs and PLEDs displays, carefully had be
Publicado em: 2007
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18. Caracterização cromática das fontes alimentares de origem vegetal do sagui-do-cerrado (Callithrix penicillata, PRIMATES)
The colour vision ability depends on the presence of different classes of retinal photoreceptors and subsequent compatible neural tracts. The basic mammalian colour vision status is dichromacy, resulting of the presence of two different types of cones. Primates and some marsupials are exceptions for this status, which may present trichromatic colour vision.
Publicado em: 2006
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19. Feixes de arco-íris : uma compreensão ontológico- policrômica da sensibilidade e sua fruição no fenômeno do educar.
The meditations I envision arise from the in-tensities of my restlessness and fright when I face the phenomena of the existence and of the action of educating; they present an ?ontological-polychrome comprehension of Sensitivity and its delight in a Philanthropoetic view. A view that wants to intertwine the enthusiasm of the philosophical-anthropological, an
Publicado em: 2006
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20. Self-tuned vehicle parameters detection and estimation from vÃdeo sequences for traffic incident management.
This work proposes and compares three algorithms for vehicle detection, composed of two main stages, preprocess and process. The first will proceed with the selection of the region of interest (ROI) and the background learning phase. The ROI is a narrow and transversal-to-lane rectangular area wherein detection is achieved, its dimensions provides low proces
Publicado em: 2005
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21. Estudo de indices quimicos, sensoriais, microbiologicos e intrumentais para avaliação do frescor de lulas (Loligo plei, Blainville, 1823) armazenadas em gelo
Loligo plei is one of major species of squid caught in brazilian seawater. To study the efficiency of tests used like freshness indices and the shelf life of Loligo plei, squids of this species were caught by hand jiggers or purchased at a local market and stored whole in contact ice (CCG) or in non-contact ice (SCG), in polyethylene bags, during a 16 and 15
Publicado em: 1999
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22. The natural center of chromaticity space is not always achromatic: A new look at color induction
Although current theories of color vision differ in many respects, they all assume the existence of a uniquely defined neutral point in chromaticity space. It generally is assumed that this point satisfies several criteria simultaneously. One of these criteria is that it is perceived as achromatic. A further criterion shared by most theories is the structura
The National Academy of Sciences.
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23. Chromatic mechanisms in lateral geniculate nucleus of macaque.
This paper introduces a new technique for the analysis of the chromatic properties of neurones, and applies it to cells in the lateral geniculate nucleus (l.g.n.) of macaque. The method exploits the fact that for any cell that combines linearly the signals from cones there is a restricted set of lights to which it is equally sensitive, and whose members can
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24. Adaptation from invisible flicker
Human ability to resolve temporal variation, or flicker, in the luminance (brightness) or chromaticity (color) of an image declines with increasing frequency and is limited, within the central visual field, to a critical flicker frequency of ≈50 and 25 Hz, respectively. Much remains unknown about the neural filtering that underlies this frequency-dependent
National Academy of Sciences.