Angular Transformation
Mostrando 1-10 de 10 artigos, teses e dissertações.
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1. ECAE processed NiTi shape memory alloy
The current work evaluated the microstructures and martensitic transformation temperatures of NiTi shape memory alloy (SMA) deformed by equal channel angular extrusion (ECAE). The Ti-55.27wt.%Ni alloy was processed by 1 ECAE pass at 250 °C using a die with an intersection angle of 120°. After processing, samples were annealed at 300 °C, 400 °C and 500 °
Mat. Res.. Publicado em: 25/03/2014
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2. Generalizacao de um indice de intensidade de infeccao em experimentos de avaliacao de doencas em plantas.
Em experimentos de avaliacao de doencas em plantas e comum a classificacao de individuos de cada parcela experimental, segundo classes de uma escala quantitativa discreta, mediante avaliacao visual da severidade de doenca. O objetivo deste trabalho foi apresentar a generalizacao de uma medida que associa uma resposta quantitativa denominada indice de intensi
Pesquisa Agropecuaria Brasileira. Publicado em: 2011
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3. Vector control of a single-phase induction motor / Controle vetorial do motor de indução monofásico
The objective of this work is to study the rotor flux vector control applied to a single-phase induction motor drive. Initially, a mathematical model of the motor will be derived. The motor equations will be transformed to the stationary reference frame so that the angular dependency due to the asymmetry of the motor variables is eliminated. Then is discusse
Publicado em: 2008
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4. Dynamic simulation of constrained mechanical systems using recursive projection algorithm
In this paper, the dynamic simulation of constrained mechanical systems that are interconnected of rigid bodies is studied using projection recursive algorithm. The method uses the concepts of linear and angular momentums to generate the rigid body equations of motion in terms of the Cartesian coordinates of a dynamically equivalent constrained system of par
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2006-03
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5. Investigação fonetico-acustico-perceptual dos sinais de pontuação enquanto marcadores prosodicos
This aim of this dissertation is to investigate the production and perception processes of the punctuation signs, PS (colon, exc1amation mark, interrogation mark, full stop, semi-colon, reticence, and comma) used in the writing system of Brazilian Portuguese. A phonetic instrumental analysis of the oral renderings of those graphic marks was carried out, base
Publicado em: 2003
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6. Characterization of vegetation physiognomies in earstern Amazonon region through airbone videography and landsat 7 ETM + images / Caracterização de fisionomias vegetais na Amazônia Oriental através de videografia aerotransportada e imagens landsat 7 ETM+
Transformation of multispectral remote sensing data is needed for compression of data volume and for the inference of biophysical properties of the land cover. Linear Spectral Mixing Models (LSMM) and Normalized Difference Vegetation Index (NDVI) are transformations that result in indicators of vegetation structure. However these methods present limitations
Publicado em: 2003
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7. Chronic transformation of muscle in spasticity: a peripheral contribution to increased tone.
Mechanical properties of relaxed lower leg muscles were assessed by torque measurements during imposed constant velocity dorsiflexion-plantarflexion cycles. At low angular velocities, they exhibited an elastic and an energy-consuming, velocity-independent (plastic) resistance. In most patients with long-standing spasticity, both of these were enhanced. The r
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8. Dehalogenation, Denitration, Dehydroxylation, and Angular Attack on Substituted Biphenyls and Related Compounds by a Biphenyl Dioxygenase
The attack by the bph-encoded biphenyl dioxygenase of Burkholderia sp. strain LB400 on a number of symmetrical ortho-substituted biphenyls or quasi ortho-substituted biphenyl analogues has been investigated. 2,2′-Difluoro-, 2,2′-dibromo-, 2,2′-dinitro-, and 2,2′-dihydroxybiphenyl were accepted as substrates. Dioxygenation of all of these compounds sh
American Society for Microbiology.
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9. The contribution of otoliths and semicircular canals to the perception of two-dimensional passive whole-body motion in humans.
1. Perception of two-dimensional (2-D) whole-body passive motion in the horizontal plane was studied in twelve blindfolded healthy volunteers: pure rotation in place (180 deg), linear motion (4.5 m) and a semicircular trajectory (radius, 1.5 m; angular acceleration, 0.2 rad s-2) were applied in random sequence by means of a remote-controlled robot equipped w
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10. Zinc Ion-induced Domain Organization in Metallo-β-lactamases: A FLEXIBLE “ZINC ARM” FOR RAPID METAL ION TRANSFER?*
The reversible unfolding of metallo-β-lactamase from Chryseobacterium meningosepticum (BlaB) by guanidinium hydrochloride is best described by a three-state model including folded, intermediate, and unfolded states. The transformation of the folded apoenzyme into the intermediate state requires only very low denaturant concentrations, in contrast to the Zn2
American Society for Biochemistry and Molecular Biology.