Inverse Compensation
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. Application of H∞ theory to a 6 DOF flight simulator motion base
The purpose of this study is to apply inverse dynamics control for a six degree of freedom flight simulator motion system. Imperfect compensation of the inverse dynamic control is intentionally introduced in order to simplify the implementation of this approach. The control strategy is applied in the outer loop of the inverse dynamic control to counteract th
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2012-06
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2. Estimação e compensação de não linearidades inerentes aos atuadores dos processos industriais
As oscilações presentes nas malhas de controle podem causar prejuízos à indústria petroquímica. Anular, ou até mesmo amenizar tais oscilações, acarretaria em uma grande economia. Estudos identificaram que um dos causadores destas oscilações são as não linearidades presentes nos atuadores dos processos industriais. O presente trabalho tem como ob
Publicado em: 2009
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3. Design and FPGA prototyping of a H: 264/AVC main profile decoder for HDTV
This paper presents the architecture, design, validation, and hardware prototyping of the main architectural blocks of main profile H.264/AVC decoder, namely the blocks: inverse transforms and quantization, intra prediction, motion compensation and deblocking filter, for a main profile H.264/AVC decoder. These architectures were designed to reach high throug
Journal of the Brazilian Computer Society. Publicado em: 2007-03
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4. Desenvolvimento de um sensor de temperatura inteligente - compensação em tempo real dos efeitos de convecção, acumulação e radiação / Development of an intelligent temperature sensor on-line compensation of the convection, accumulation and radiation effects
Esta tese apresenta o desenvolvimento de uma técnica de processamento numérico capaz de reconstruir o sinal da temperatura do processo original a partir do sinal distorcido, atrasado e ruidoso, medido através de uma sonda intrusiva. Uma técnica de regularização foi adotada para contornar o mau condicionamento do modelo numérico inverso da equação de
Publicado em: 2006
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5. Restauração de imagens do satélite Landsat-7. / Restoration of LANDSAT-7 satellite images.
The techniques of image restoration are oriented for the modeling of the degradation and recovery of the original signal that was degraded during the process of image formation. In Remote Sensing, sensor?s nominal spatial resolution, that defines the precision with which details of objects of interest in the image are perceivable, is one of the most importa
Publicado em: 2003
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6. Importancia ecofisiologica da reserva de xiloglucano e o controle de sua mobilização em cotiledones de Hymenaea courbaril L
Hymenaea courbarí/ is a climax leguminous tree species considered to be shade tolerant with wide neotropical geographic distribution. Seed cotyledons are rich in xyloglucan (XG), which is the main carbon reserve for the seedling growth. This polymer is a cell wall polysaccharide and its mobilisation mechanism, based on the co-ordinated action of four enzyme
Publicado em: 2002
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7. Analysis of Autosomal Dosage Compensation Involving the Alcohol Dehydrogenase Locus in Drosophila Melanogaster
An example of autosomal dosage compensation involving the expression of the alcohol dehydrogenase (Adh) locus is described. Flies trisomic for a quarter of the length of the left arm of chromosome two, including Adh, have diploid levels of enzyme activity and alcohol dehydrogenase messenger RNA. Subdivision of the compensating trisomic into smaller ones reve
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8. A Trans-Acting Regulatory Gene That Inversely Affects the Expression of the White, Brown and Scarlet Loci in Drosophila
A trans-acting regulatory gene, Inr-a, that alters the level of expression of the white eye color locus as an inverse function of the number of its functional copies is described. Several independent lines of evidence demonstrate that this regulatory gene interacts with white via the promoter sequences. Among these are the observations that the inverse regul
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9. The Lighten up (Lip) Gene of Drosophila Melanogaster, a Modifier of Retroelement Expression, Position Effect Variegation and White Locus Insertion Alleles
We are interested in identifying single gene mutations that are involved in trans-acting dosage regulation in order to understand further the role of such genes in aneuploid syndromes, various types of dosage compensation as well as in regulatory mechanisms. The Lighten up (Lip) gene in Drosophila melanogaster was identified in a mutagenic screen to detect d
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10. Modulation of Protein Levels in Chromosomal Dosage Series of Maize: The Biochemical Basis of Aneuploid Syndromes
Genetically defined dosage series of chromosome arms 1L, 3L, 4S, 5L, 7L, 9S, 10L and combinations of 1L–3L, collectively spanning approximately one-third of the maize genome, were examined for alterations in the expression of total protein profiles in scutellar tissue. The major effects found were negative correlations of specific proteins with the dosage
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11. The role of ipsilateral premotor cortex in hand movement after stroke
Movement of an affected hand after stroke is associated with increased activation of ipsilateral motor cortical areas, suggesting that these motor areas in the undamaged hemisphere may adaptively compensate for damaged or disconnected regions. However, this adaptive compensation has not yet been demonstrated directly. Here we used transcranial magnetic stimu
National Academy of Sciences.
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12. Serum endothelin concentrations in workers exposed to vibration.
OBJECTIVES: Endothelin 1 (ET1) is one of a newly discovered family of potent naturally occurring vasoconstrictors produced by the endothelium. A few publications indicated that the peptide may have a role in idiopathic Raynaud's phenomenon and Raynaud's phenomenon secondary to connective tissue disease. The aim of this study was to compare serum endothelin c