True Amplitude
Mostrando 1-12 de 33 artigos, teses e dissertações.
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1. Padrões de distribuição de mamíferos de médio e grande porte em paisagens fragmentadas / Distribuition patterns of medium and large size mammals in fragmented landscapes
Habitat fragmentation is defined as the breaking of a continuous habitat in patches or fragments. This process leads to environmental changes capable of affecting communities in different ways, causing species composition changes. Beta diversity measures can show the variation between the composition of different communities, where two ecological patterns ca
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/04/2012
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2. A simple test of muscle coactivation estimation using electromyography
In numerous motor tasks, muscles around a joint act coactively to generate opposite torques. A variety of indexes based on electromyography signals have been presented in the literature to quantify muscle coactivation. However, it is not known how to estimate it reliably using such indexes. The goal of this study was to test the reliability of the estimation
Braz J Med Biol Res. Publicado em: 2012-10
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3. Variabilidade e divergência genética em cruzamentos dialélicos de soja / Variability and genetic divergence in soybean diallel crosses
Estimates of genetic divergence (DG) have not been used for parental selection in breeding programs, because of the inconsistence of the results. The objective of this study was to evaluate the possibility of predicting the genetic variability (VG) of soybean populations derived from two-way crosses, using DG data from AFLP markers (Bonato et al., 2006), and
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/12/2011
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4. A redatumação de Kirchhoff de empilhamento único em amplitude verdadeira / Single stack true amplitude Kirchhoff redatuming
Entende-se por datum a superfície onde estão posicionados os pares fonte-receptor usados na aquisição sísmica. Este datum pode ser plano ou irregular e sua profundidade pode variar. O objetivo da redatumação é transformar o dado sísmico adquirido na superfície original em um dado simulado adquirido em outra superfície. Obtém-se assim um novo dado
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/10/2011
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5. Seimic resolution and time-to-depth conversion by the common-reflection-surface (CRS) method / Resolução sismica e conversão tempo-profundidade, atraves do metodo de superficie comum de reflexão (CRS)
The demand for large multiplicities in seismic processing has always been a tough target for the professionals involved in this area. Until recently, the major effort to meet this demand has been done during seismic acquisition, which, due to high cost, is not usually implemented. Recently, the Common Reflection Surface (CRS) technique filled this gap provid
Publicado em: 2008
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6. Caracterização das correntes do processo de destilação molecular aplicado a frações pesadas de petroleo e desenvolvimento de correlações da curva PEV / Characterization of molecular distillation process applied to petroleum heavy factions and development of TBP curve correlation
O etanol perdido por evaporacao durante o processo de producao por fermentação pode ser recuperado por uma coluna de absorcao, a qual requer um sistema de controle robusto de acordo com sua complexidade. Este equipamento tambem e utilizado no tratamento do CO2, um co-produto deste processo. Neste sentido, no presente trabalho foi proposto e testado, o empr
Publicado em: 2008
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7. True amplitude Kirchhoff time migration in the common angle domain / Migração Kirchhoff 2,5D em tempo no dominio de angulo comum e em amplitude verdadeira
The analysis of amplitude variation with offset or reflection angle is of great importance in the oil industry to predict hydrocarbon presence in the reservoir. This analysis is applied to both reservoir and exploration areas. The usual transformation method from offset to reflection angle, for common-offset migrated data, involves errors that may produce un
Publicado em: 2004
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8. Correlação de estrias de fadiga com espectro de cargas em liga de Al aeronáutica SAE-AMS 7475 T 7351. / Correlation of fatigue striation spacing to loading history in aeronautic Al alloy, AMS 7475 T7351.
This work discusses the relationship between striation spacing, i.e. the microscopic crack propagation rate, SL (local) e SP (projected), as measured in post-mortem fractographic inspection of fatigue fractured surfaces, and the macroscopic crack propagation rate, da/dN, as monitored during fatigue crack growth tests. Compact tensile specimens C(T) were extr
Publicado em: 2003
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9. O devido processo legal na jurisdiÃÃo civil
The clause of due process of law, depite its amplitude and complexity, was studied with the aim of contributing to its understanding, taking into account two basic premises: a) due process of law as a constitutional right of the citizen and its bond with the justice ideal; b) panoramic vision of the derivation of due process of law, with emphasis on the civi
Publicado em: 2002
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10. Eliminação de reflexões multiplas por empilhamento tipo Kirchhoff em configuração de afastamento comum / Multiple elimination by means of Kirchhoff type stacking in common offset configuration
Atualmente, cerca de 90% das reservas brasileiras de óleo localizam-se nas porções submersas das bacias sedimentares costeiras. Nessas bacias, a sísmica de reflexão é uma das principais ferramentas de que dispõe o profissional de exploração e de desenvolvimento de campos de petróleo. Como a interpretação dos dados sísmicos considera somente as r
Publicado em: 1999
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11. Human sensory nerve compound action potential amplitude: variation with sex and finger circumference.
The amplitude of human, antidromic, sensory compound action potentials (CAP) recorded from median and ulnar digital nerves is greater in females than males. This sex difference is probably due entirely to females having digits of smaller circumference, resulting in digital nerves being closer to the recording ring electrode enclosing the digit. The negative
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12. Stereocilia mediate transduction in vertebrate hair cells (auditory system/cilium/vestibular system).
The vertebrate hair cell is a sensory receptor that responds to mechanical stimulation of its hair bundle, which usually consists of numerous large microvilli (stereocilia) and a single true cilium (the kinocilium). We have examined the roles of these two components of the hair bundle by recording intracellularly from bullfrog saccular hair cells. Detachment