Defect Engineering
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Fibrin biopolymer as scaffold candidate to treat bone defects in rats
ABSTRACT Background: Bone tissue repair remains a challenge in tissue engineering. Currently, new materials are being applied and often integrated with live cells and biological scaffolds. The fibrin biopolymer (FBP) proposed in this study has hemostatic, sealant, adhesive, scaffolding and drug-delivery properties. The regenerative potential of an associat
J. Venom. Anim. Toxins incl. Trop. Dis. Publicado em: 04/11/2019
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2. Avaliação morfológica de fibras eletrofiadas de policaprolactona em função do tipo de solvente
RESUMO Recentemente, estratégias da engenharia tecidual para o tratamento de feridas e queimaduras prevê o uso de biomateriais nanoestruturados capazes de facilitar a regeneração da pele e a cura das feridas. Um dos processos utilizados para a obtenção deste tipo de biomaterial é a eletrofiação. Por meio deste processo é possível formar filmes com
Matéria (Rio J.). Publicado em: 16/09/2019
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3. Study on nano-structured hydroxyapatite/zirconia stabilized yttria on healing of articular cartilage defect in rabbit
PURPOSE: Articular Cartilage has limited potential for self-repair and tissue engineering approaches attempt to repair articular cartilage by scaffolds. We hypothesized that the combined hydroxyapatite and zirconia stabilized yttria would enhance the quality of cartilage healing. METHODS: In ten New Zealand white rabbits bilateral full-thickness osteochondra
Acta Cir. Bras.. Publicado em: 2013-05
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4. Scaffolds baseados em nanopartículas de fosfatos de cálcio para engenharia tecidual óssea / Scaffolds based on calcium phosphate nanoparticles for bone tissue engineering
Tissue engineering associated with nanotechnology stood out because of its multidisciplinarity and results, in addition to targeting many areas of study in the field of regenerative medicine. For the process of bone regeneration to occur in appropriate form, the injured area must be organized. The reorganization of the 3D structure in the affected area shoul
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/07/2012
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5. A micromechanics approach to assess effects of constraint on cleavage fracture toughness: a weibull stress model
This work describes an engineering methodology incorporating the statistics of microcracks and a probability distribution of the (local) fracture stress to assess the effects of constraint loss and weld strength mismatch on crack-tip driving forces. One purpose of this investigation is to establish a definite fracture assessment framework capable of providin
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2010-12
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6. Defect engineering in H and He implanted Si
The present work relates an investigation of H2 + and He+ coimplanted (001)-Si substrates. The phenomena of blistering and exfoliation were studied by SEM as a function of the implantation parameters (energy, fluence, current and H/He ration) and annealing protocol. A window behavior as function of the implanted fluence was observed and two distinct fluence
Publicado em: 2009
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7. Redistribuição e ativação de dopantes em Si com excesso de vacâncias
A redistribuição e ativação elétrica dos dopantes tipo n (As e Sb) e tipo p (Ga e In) em Si com excesso de vacâncias foram analisadas. As vacâncias foram geradas por implantação iônica de altas doses de oxigênio ou nitrogênio em alta temperatura, de acordo com procedimentos já estudados. Em seguida foram implantados os dopantes com dose de 5x101
Publicado em: 2009
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8. VIDAese: processo de visualização exploratória para apoio a estudos empíricos em verificação, validação e teste de software / VIDAese: visual exploratory process to support empirical studies in software verification, validation and test
A Engenharia de Software evolui gradativamente para uma disciplina científica baseada em observação, formulação teórica e experimentação. Nesse contexto, estudos experimentais têm sido conduzidos para proporcionar evidências sobre a qualidade e a produtividade de técnicas, ferramentas e métodos de desenvolvimento de software. Porém, resultados o
Publicado em: 2006
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9. PSP e métodos ágeis na melhoria da qualidade em produção de software: um estudo de caso / Improving the quality of the software production using PSP and agile methods: a case study
Small and medium sized software development organizations face challenges to develop quality software. Costs to adhere to international quality standards are very high, making it almost impossible to adopt and acquire maturity evaluations based on those standards. One plausible and less expensive way to increase product quality is investing in personal softw
Publicado em: 2006
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10. Monitoramento e diagnÃstico de estado de disjuntores de alta e extra alta tensÃo como tÃcnica de manutenÃÃo preditiva
Concerning to the present rules applied to the energy sector in Brazil, quality of services plays an important part in determining conditions in which better results will be achieved. The Brazilian Electricity Regulatory Agency ANEEL - has imposed severe penalties to the electric companies involving large amount of money in case of equipment failures.
Publicado em: 2004
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11. Engineering growing tissues
Regenerating or engineering new tissues and organs may one day allow routine replacement of lost or failing tissues and organs. However, these engineered tissues must not only grow to fill a defect and integrate with the host tissue, but often they must also grow in concert with the changing needs of the body over time. We hypothesized that tissues capable o
National Academy of Sciences.
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12. Synthetic matrix metalloproteinase-sensitive hydrogels for the conduction of tissue regeneration: Engineering cell-invasion characteristics
Synthetic hydrogels have been molecularly engineered to mimic the invasive characteristics of native provisional extracellular matrices: a combination of integrin-binding sites and substrates for matrix metalloproteinases (MMP) was required to render the networks degradable and invasive by cells via cell-secreted MMPs. Degradation of gels was engineered star
The National Academy of Sciences.