Parallel Mechanism
Mostrando 1-12 de 551 artigos, teses e dissertações.
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1. MEMORY AND TESTIMONY IN EXTRAORDINARY TIMES
Abstract This paper analyzes two parallel and opposed testimonies of mass annihilation in World War II: Primo Levi’s report of his gruesome experiences in Auschwitz, in The Drowned and the Saved; the testimony of the fire-bombing of Dresden, that killed 130,000 civilians in 1945, recorded by a young American POW, private Kurt Vonnegut Jr, in his novel Slau
Ilha Desterro. Publicado em: 2021-08
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2. Effect of Pressure Gradient on the Development of Görtler Vortices
ABSTRACT: Boundary layers over concave surfaces may become unstable due to centrifugal instability that manifests itself as stationary streamwise counter rotating vortices. The centrifugal instability mechanism in boundary layers has been extensively studied and there is a large number of publications addressing different aspects of this problem. The results
J. Aerosp. Technol. Manag.. Publicado em: 24/10/2019
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3. BDD-Electrolysis of Oxalic Acid in Diluted Acidic Solutions
Boron doped diamond films (BDD) are the most studied electrocatalytic materials and their efficiency for removing organic compounds is attributed to their ability to produce a large amount of hydroxyl radicals by the electrolysis of water. However, some organic compounds are easy to degrade than others, as well as they also interact with BDD surface. Thus, i
J. Braz. Chem. Soc.. Publicado em: 04/07/2019
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4. Structure Synthesis and Optimization of Feed Support Mechanisms for a Deployable Parabolic Antenna
ABSTRACT In this paper, a systematic method to synthesize parallel mechanisms for feed support mechanisms based on screw theory is proposed. First, the motion requirement of the feed support mechanism is studied. Then, a class of parallel mechanisms having a translational motion with different degrees of freedom is synthesized based on the constraint-synthes
J. Aerosp. Technol. Manag.. Publicado em: 2016-03
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5. Oxidative Modifications in Crystallin Proteins and Lens Epithelial Cells Associated with Photosensitized Reactions Mediated by the Major Chromophore Arising from Glucose Degradation
Deleterious effect mediated by glucose degradation, as a parallel pathway to Maillard reaction, was analyzed in terms of the feasibility of inducing photo-crosslinking in isolated bovine crystalline proteins when exposed to ultraviolet A (UVA)-visible light. These experiments showed evidence supporting the generation of a glucose-derived chromophore (GDC). T
J. Braz. Chem. Soc.. Publicado em: 2016-02
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6. On dynamic self-organization: examples from magmatic and other geochemical systems
Standard Liesegang banding is the display of parallel bands of precipitate formed periodically when co-precipitate ions interdiffuse in a gel medium. The most striking resemblance with Liesegang patterns in Nature lies in the diverse scenery of banded textural features commonly observed in some geological materials, such as geodes, agates, malachites, as wel
Lat. Am. j. solids struct.. Publicado em: 2013-01
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7. Mecanismo para execução especulativa de aplicações paralelizadas por técnicas DOPIPE usando replicação de estágios / Mechanism for speculative execution of applications parallelized by DOPIPE techniques using stage replication
A utilização máxima dos núcleos de arquiteturas multi-processadas é fundamental para permitir uma utilização completa do paralelismo disponível em processadores modernos. A fim de obter desempenho escalável, técnicas de paralelização requerem um ajuste cuidadoso de: (a) mecanismo arquitetural para especulação; (b) ambiente de execução; e (c)
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/07/2012
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8. Mecanismos moleculares da ação tóxica pró-oxidante de 1,4-diamino-2-butanona, um análogo de putrescina, sobre células de mamíferos e Trypanosoma cruzi / The Molecular mechanisms of pro-oxidant activity of 1,4-diamino-2-butanone, a putrescine analogue, to mammalian cells and Trypanosoma cruzi
α-Aminocarbonyl componds such as 5-aminolevunilic acid (ALA) and aminoacetone (AA) have been shown to exhibit pro-oxidant properties. These compounds undergo phosphate-catalyzed enolization in physiological pH and subsequent aerobic oxidation, yielding reactive oxygen species, NH4+ ions and an α-oxoaldehyde highly cytotoxic. The α-aminoketone 1
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/06/2012
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9. Estudo da fototerapia de baixa potência no modelo de inflamação aguda induzida no joelho de ratos. / Study of the fototerapia of low power in the model of induced acute inflammation in the knee of rats.
The acute arthritis of the knee is a common joint disorder, and its prevalence increases in parallel with increasing age, is one of the most frequent causes of pain, loss of function and removal of work activities in adults. Many treatments are used to treat pain associated with rheumatoid arthritis. Nonsteroidal anti-inflammatory drugs (NSAIDs), anti-rheuma
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/12/2011
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10. Estudo da perda de carga e calor no poço injetor no processo De drenagem gravitacional assistida por vapor (SAGD)
The oil companies in the area in general are looking for new technologies that can increase the recovery factor of oil contained in reservoirs. These investments are mainly aimed at reducing the costs of projects which are high. Steam injection is one of these special methods of recovery in which steam is injected into the reservoir in order to reduce the vi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/09/2011
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11. Construction of a vector for controlled expression of chondroitinase AC for mesenchymal stem cells / Construção de um vetor para expressão controlada de condroitinase AC por células tronco mesenquimais/
Adult mammal axons fail to regenerate when damaged, generating a fundamental problem, inhibiting the recovery of injured central nervous system (CNS). The lack of full regenerative capacity of the injured CNS is due to a glial scar formation on the injury site. The glial scar is formed by astrocytes, oligodendrocyte precursor cells, and microglia, cells that
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/02/2011
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12. Trypanosoma cruzi trypomastigotes induce cytoskeleton modifications during HeLa cell invasion
It has been recently shown that Trypanosoma cruzi trypomastigotes subvert a constitutive membrane repair mechanism to invade HeLa cells. Using a membrane extraction protocol and high-resolution microscopy, the HeLa cytoskeleton and T. cruzi parasites were imaged during the invasion process after 15 min and 45 min. Parasites were initially found under cells a
Memórias do Instituto Oswaldo Cruz. Publicado em: 2011-12