Electron Resist
Mostrando 1-12 de 31 artigos, teses e dissertações.
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1. Performance of kevlar fibre-reinforced rubber composite armour against shaped-charge jet penetration
AbstractThe protective capability of the Kevlar fibre-reinforced rubber composite armour (KFRRCA) at different obliquities is studied using depth-of-penetration experiments method against a 56 mm-diameter standard-shaped charge. Efficiency factors are calculated to evaluate the protection capability of the KFRRCA at different obliquities. Meanwhile, an X-ray
Lat. Am. j. solids struct.. Publicado em: 2015-03
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2. In vitro biofilm forming potential of Streptococcus suis isolated from human and swine in China
Streptococcus suis is a swine pathogen and also a zoonotic agent. The formation of biofilms allows S. suis to become persistent colonizers and resist clearance by the host immune system and antibiotics. In this study, biofilm forming potentials of various S. suis strains were characterized by confocal laser scanning microscopy (CLSM), scanning electron micr
Braz. J. Microbiol.. Publicado em: 2012-09
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3. âRevestimento por soldagem MIG/MAG empregando ligas de nÃquel para apliacaÃÃes em componentes do setor de petrÃleo e gÃs naturalâ / Gmaw Welding Overlay Of Nickel-Based Alloys For Applications In Oil And Natural Gas Components
The weld overlay of nickel-based alloys is an alternative often used in oil and gas industry to prevent corrosion in pipes and equipments operating under severe conditions. In many situations the requirements of weld overlays are based in a maximum of 5% iron content in the weld metal to ensure corrosion resistance. The aim of this study was to determine the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/12/2010
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4. Implantação iônica de baixa energia em polímero para desenvolvimento de camadas compósitas nanoestruturadas condutoras litografáveis. / Low energy ion implantation into polymers to develop conductive composite layers for lithography.
Electronics using polymers instead of silicon is a recent research area with promising economic perspectives. Polymer with metallic particles composites presents interesting electrical, magnetic and optical properties and they have been produced by a broad variety of techniques. Metal ion implantation using plasma is one of the used methods to obtain conduct
Publicado em: 2010
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5. Charpy impact resistance of alkali treated curaua reinforced polyester composites
Natural fibers obtained from cellulose-based plants are being used as reinforcement of polymer composite owing to both environmental and technical advantages. One important technical characteristic of most lignocellulosic fibers is the bend flexibility, which allows them to resist impact forces. As a consequence, there is an increasing application of these l
Matéria (Rio de Janeiro). Publicado em: 2010
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6. Fabrication and characterization of tellurite and germanate waveguides for optoelectronics applications. / Produção e caracterização de guias de onda de telureto e germanato para aplicações em optoeletrônica.
The objective of this work is the production and characterization of GeO2-PbO and TeO2-ZnO waveguides. The waveguides were produced using thin films and glasses by means of different procedures. The films were produced using the RF magnetron sputtering method and characterized by a variety of techniques. In particular, scanning electron microscopy was essent
Publicado em: 2010
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7. Desenvolvimento de processo litográfico tri-dimensional para aplicação em microóptica integrada. / Development of three-dimensional lithographic process for application in integrated micro-optics.
O presente trabalho tem como objetivo desenvolver um processo de fabricação de elementos micro-ópticos utilizando-se litografia por feixe de elétrons, empregando o resiste SU-8, negativo e amplificado quimicamente, sobre substrato de Si. Para tanto, é realizado o estudo dos parâmetros do efeito de proximidade a, b e h para se modelar e controlar os efe
Publicado em: 2010
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8. Klebsiella pneumoniae: estudo molecular dos fatores de resistÃncia e caracterizaÃÃo ultra-estrutural da aÃÃo de antibiÃticos β-lactÃmicos
Klebsiella pneumoniae is an enterobacteria responsible for a high incidence of hospital infections usually caused by strains carrier of multidrug resistance and producer of broad spectrum -lactamase (ESBL). This study aimed to determine the genes involved in the formation of classical beta-lactamases and ESBLs in Recife-PE, Brazil, and investigate th
Publicado em: 2009
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9. Avaliação ultramorfológica em microscopia eletrônica de transmissão e varredura da interface de união compósito-dentina produzida por diferentes cimentos resinosos convencionais e auto-adesivos
The aim of this study was to evaluate the ultramorphology of the resindentin interfaces produced by different self-adhesive cements submitted to a nanoleakage protocol by means of Transmission (TEM) and Scanning Electron Microscopy (SEM), and to compare them with conventional resin cements. Materials and Methods: Six self-adhesive cements were used in the pr
Publicado em: 2009
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10. High performance concrete applied to storage and processing system buildings at low temperatures / Concreto de alto desempenho aplicado a sistemas de processamento e armazenagem de alimentos em baixas temperaturas
Brazil has rapidly emerged as one of the worlds leading meat exporters, being responsible by 33% of this market. In face of that, a high performance concrete (HPC), that can be applied to storage and processing system buildings at low temperatures, has been developed with the aim of answering the needs of brazilian food manufacturers that use cooling technol
Publicado em: 2008
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11. Coffee peel extract and thyme oil in the control of Cercospora coffeicola Berk &Cooke in coffee / Extrato de casca de cafà e Ãleo de tomilho no controle de Cercospora coffeicola Berk &Cooke em cafeeiro
The objectives of this work were: (i) to assess the effect of different doses of coffee berry husk extract (CHE) and thyme essential oil (TEO) on the germination and mycelial growth of Cercospora coffeicola; (ii) to assess the efficiency of CHE and TEO as possible resistance inducers in green house conditions; (iii) to biochemically characterize the effects
Publicado em: 2006
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12. Influencia dos ciclos termicos e mecanicos na resistencia de união de restaurações classe II em resina composta confeccionadas com tres sistemas adesivos / Influence of thermal and mechanical load cycling on bond strength of Class II composite resin restorations using three adhesive systems
The aim of this study was to evaluate the influence of thermal and mechanical loading cycling on microtensile bond strength of Class II composite restorations in dentin, with three adhesive systems. One hundred and sixty eight slot vertical cavities were prepared on proximal surfaces of bovine teeth, and divided according to the adhesive system used (Single
Publicado em: 2005