Dendritic Structure
Mostrando 13-24 de 82 artigos, teses e dissertações.
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13. Expressão do receptor de macrófago com estrutura de colágeno (MARCO) em macrófagos, células dendríticas e células tumorais após internalização de nanotubos de carbono / Expression of macrophage receptor with collagen structure (MARCO) in macrophages, dendritic cells and tumor cells after internalization of carbon nanotubes
The aplication of nanotechnology emerges with potential for application in the biomedical area, pathological diagnosis and treatment, drug transport and intracellular transport of molecules. Among the nanoparticles, carbon nanotubes (NT) belong to a new class of material for application in the biomedical area. Due to its small size, the NT can be internalize
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/03/2011
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14. Modelo matemático multigrãos e multifásico para a previsão da solidificação equiaxial. / Multigrain and multiphase mathematical model for prediction of the equiaxed solidification.
Properties of components obtained by solidification processes depend strongly on the final grain structure. In the past few decades, there has been a significant breakthrough in the mathematical modeling of metallic alloy solidification to predict the grain macrostructure. Nevertheless, the so-called deterministic models are still not capable of modeling the
Publicado em: 2011
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15. Avaliação comparativa de propriedades geradas pelos processos de soldagem TIG e brasagem em uma liga odontológica à base de Ni-Cr / Comparative assessment of properties generated by the process of TIG welding and brazing in a Ni-Cr dental alloy
The purpose of this study was to compare, by means of microhardness testing and metallurgical characterization techniques as metallography, optical microscopy, scanning electron microscopy (SEM) and energy dispersion spectroscopy (EDS), mechanical and metallurgical properties of welded joints by TIG and brazing methods in a dental alloy based on Ni-Cr (FIT-C
Publicado em: 2009
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16. AVALIAÃÃO DO REVESTIMENTO A BASE DE LIGA DE NÃQUEL EM AÃO ESTRUTURAL, EMPREGANDO O METAL DE ADIÃÃO ERNiCrMo-3 ATRAVÃS DA SOLDAGEM MIG/MAG / EVALUATE OF NICKEL WELD OVERLAY IN STRUCTURAL STEEL, WITH EMPLOYMENT OF GMAW ERNiCrMo-3 ELECTRODE.
The use of nickel alloy cladding components could be more frequently in petroleum industry. The crescent naphthenic corrosion and high molecular weight of national petroleum contribute for needs of materials with more resistance to corrosion, to temperature and to pressure. At this way, how part of systematic study, this work pretends to define operational r
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/04/2008
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17. Solidification microstructure, mechanical and wear resitances of Al-Sn and Al-Si alloys / Microestrutura de solidificação, resistencias mecanica e ao desgaste de ligas Al-Sn e Al-Si
A procura por relações funcionais correlacionando parâmetros microestruturais e o comportamento mecânico de ligas metálicas é fundamental para a pré-programação do produto final. O presente estudo pretende contribuir para o entendimento sobre a influência dos parâmetros microestruturais na resistência ao desgaste e nas propriedades mecânicas de
Publicado em: 2008
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18. Experimental autotransplant of spleen / Autotransplante experimental de baço
The spleen is a lymphoid organ that plays important part in the organism defense, participating in filtration processes, phagocytosis and immunoglobulin production. Histologically, is formed by a stroma and the parenquima being its cellular arrangement differentiated in white and red pulps. The main cellular types in the splenic structure are: T and B lympho
Publicado em: 2008
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19. The influence of melt convection on dendritic spacing of downward unsteady-state directionally solidified Sn-Pb alloys
Microstructures are the strategic link between materials processing and materials behavior. A dendritic structure is the most frequently observed pattern of solidified alloys. The microstructural scales of dendrites, such as primary and secondary arm spacings, control the segregation profiles and the formation of secondary phases within interdendritic region
Materials Research. Publicado em: 2006-03
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20. Production of rheocast slurries by partial melting through alternative thermomechanical treatments
The production of alloys with rheocast structure, where the primary phase consists of globularized particles, by partial melting, involves grain recrystallization and secondary phases melting. In the process known as SIMA (Strain Induced Melt Activation), the raw material is cold deformed by a two-step rolling, making it little efficient. This work investiga
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2003-04
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21. Cellular response in bovine limph nodes inoculated with Anaplasma marginale / Resposta celular em linfonodos de bovinos inoculados com Anaplasma marginale
The immune response against the pathogen Anaplasma marginale was evaluated after the inoculation, in calves, with the strain AUFV1 2nd passage. For this, routine coloration techniques and immunohistochemistry techniques were performed in slides of superficial limph nodes. In the first week post inoculation, a proliferative response was observed in the paraco
Publicado em: 2003
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22. Observations on the fine structure of the phrenic nucleus in the cervical spinal cord of the cat with special reference to its dendritic bundles.
The structure of the cat phrenic nucleus in the cervical spinal cord was studied by light and electron microscopy. Neurons of this nucleus are medium sized and fusiform and are arranged longitudinally. The most unique feature of this nucleus is the extremely well organised longitudinal dendritic bundles. In the dendritic bundles there are dendrodendritic cas
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23. Identification of immunostimulatory dendritic cells in the synovial effusions of patients with rheumatoid arthritis.
Dendritic cells in the circulation are leukocytes that are rich in Ia antigens and that actively stimulate T cell replication. We have identified dendritic cells in the joint effusions of patients with rheumatoid arthritis. By phase-contrast and immunofluorescence microscopy, synovial mononuclear cells contained 1-5% dendritic profiles that were rich in HLA-
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24. Cable properties of cat spinal motoneurones measured by combining voltage clamp, current clamp and intracellular staining.
1. Spinal alpha-motoneurones were injected with horseradish peroxidase after measuring their voltage response to a brief current pulse and their current response to a small voltage step. 2. The morphology of each motoneurone was reconstructed from serial sections. The diameters and lengths of dendritic segments were used to build a compartmental model of eac