Site Measurements
Mostrando 25-36 de 523 artigos, teses e dissertações.
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25. Height-diameter relationships of tropical Atlantic moist forest trees in southeastern Brazil
Site-specific height-diameter models may be used to improve biomass estimates for forest inventories where only diameter at breast height (DBH) measurements are available. In this study, we fit height-diameter models for vegetation types of a tropical Atlantic forest using field measurements of height across plots along an altitudinal gradient. To fit height
Scientia Agricola. Publicado em: 2012-02
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26. Processamento de sinais de descargas parciais em tempo real com base em wavelets e seleção de coeficientes adaptativa espacialmente
On-line partial discharge (PD) analysis is a highly pursued feature due to the economy related to scheduled shutdowns, disassembling and transport. Nevertheless, on-site PD measurements are frequently limited by interferences found in high-voltage facilities, a situation that imposes the continued development of PD signal processing methods. In the last year
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/11/2011
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27. Estudo com sensores para a mensuração de falhas nas fileiras de cana-de-açucar (Sacchararum SSP.) / Study with sensors for measuring gaps in the rows of sugar cane (Saccharum ssp.)
Brazil is the world\ s largest producer of sugarcane and has a booming market. Because of the productive potentiality and profitability of sugarcane the interest in site specific management techniques and demand for new technologies are increasing. Therefore this project aims to study options of sensors for measurement and georeferencing of failures, explori
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/09/2011
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28. Avaliação da qualidade do ar em ambientes internos: biblioteca pública / Indoor air quality investigation: public library
Over fifteen months, levels of temperature, humidity, noise, light intensity, contamination by carbon dioxide, total suspended particles (TSP) and respirable fractions (PM1, PM2.5, PM7 and PM10) were monitored at the Public Library Amadeu Amaral at São Carlos, SP. Investigation of the ventilation rate and occupancy, concentration of bioaerosols and identifi
Publicado em: 2011
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29. Efeito da presença de um coespecifico no alojamento de ovelhas em novo ambiente, após estresse agudo causado pelo transporte / Effect of the presence of a conspecific in the housing of sheep in the new environment, following acute stress caused by transportation
Background: Sheep are social and gregarious animals. They feel at ease when free and clustered rather than isolated. In some situations, as in experimental procedures, they need to be separated from the flock and kept without social company. Both instances, separation from the flock and isolation are considered stressful and may impact their well being. As s
Publicado em: 2011
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30. Estudos da dinâmica estrutural da proteína ligante de cálcio S100A12 humana e da lisozima T4 / Structural dynamics studies of human calcium binding protein S100A12 and T4 lysozyme
The work presented here was conceived with two main objectives. The first one, more general, involved the implementation of a new methodology for the study of conformational changes in proteins, i.e., its structural dynamics. The technique of Site-directed Spin Labeling combined with Electronic Paramagnetic Resonance (SDSL-EPR) are the pillars of this new me
Publicado em: 2011
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31. Efeitos da metformina no sistema reprodutor em ratas androgenizadas
Objective: To analyze the effects of metformin on the reproductive system of neonatally androgenized female rats that developed permanent estrus. Materials and methods: A total of 75 three-day-old female albino wistar EPM-1 rats were randomized to three 25-animal groups: control (CG), androgenized (AG), and androgenized + metformin (AGmet). The animals in AG
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/02/2010
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32. Temperature change in pig rib bone during implant site preparation by low-speed drilling
OBJECTIVES: The purpose of this study was to evaluate the temperature change during low-speed drilling using infrared thermography. MATERIAL AND METHODS: Pig ribs were used to provide cortical bone of a similar quality to human mandible. Heat production by three implant drill systems (two conventional drilling systems and one low-speed drilling system) was e
Journal of Applied Oral Science. Publicado em: 2010-10
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33. The abiotic environment of Heliamphora nutans (Sarraceniaceae): pedological and microclimatic observations on Roraima Tepui
The aim of this study was the study of the abiotic environment of the carnivorous pitcher plant Heliamphora nutans (Sarraceniaceae), including the microclimate and the geochemistry of the soil of the growing sites on Roraima Tepui and discuss their relevance within the recent model of carnivorous plant ecology. The soil was peaty and low in nutrients. The mi
Brazilian Archives of Biology and Technology. Publicado em: 2010-04
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34. Fotogrametria e Antropometria direta da região mamária. / Photogrammetric and direct anthropometry of the breast region
The standard photography documentation has been used as a tool of morphology assessment, becoming a source of objective information when compared with the visual site. The importance of the measurements in the front part of the breast area is due to scientific and juridical aspects, being another auxiliary method of evaluation before and after surgery. The m
Publicado em: 2010
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35. Avaliação dos constituintes e do potencial mutagênico do material particulado oriundo do beneficiamento artesanal da castanha do caju / Assessment of the components and mutagenic potential of particulate matter from artisanal cashew nut roasting
x Despite the social and economic importance of the processing of cashew nuts to Rio Grande do Norte, the production is still carried out artisanally. To collect the almond nut is necessary to roasting. The smoke generated during the burning of the nut has high concentrations of particulate matter (PM) and the PM produced is inhaled daily by families for a p
Publicado em: 2010
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36. Métodos de ajuste da função Weibull e seu desempenho na prognose do crescimento e produção de Eucalyptus dunnii
The main objective of this research was to develop a simulator system of growth and yield for unthinned plantations of Eucalyptus dunnii using different adjustment methods for the Weibull probability density function to describe the forest structure at various ages. The data used in this research came from measurements of 239 plots in E. dunnii stands in the
Publicado em: 2010