Material Damages
Mostrando 1-12 de 61 artigos, teses e dissertações.
-
1. Avaliação de desvio dimensional em Inconel 718 após a retificação em diferentes técnicas de lubri-refrigeração
RESUMO O Inconel 718 é uma liga à base de níquel que possui elevada resistência à fadiga e à fluência, ductilidade, rigidez, inércia química e capacidade de operar em elevadas temperaturas, por isto é bastante utilizada na fabricação de peças aeronáuticas de alto rendimento. Estas peças exigem tolerâncias dimensionais e geométricas estreitas
Matéria (Rio J.). Publicado em: 25/11/2019
-
2. Genotoxicity of titanium dioxide nanoparticles and triggering of defense mechanisms in Allium cepa
Abstract Titanium dioxide nanoparticles (TiO2NPs) are widely used and may impact the environment. Thus, this study used a high concentration of TiO2NP (1000 mg/L) to verify the defense mechanisms triggered by a plant system – an indicator of toxicity. Furthermore, this study aimed at completely characterizing TiO2NP suspensions to elucidate their toxic beh
Genet. Mol. Biol.. Publicado em: 27/06/2019
-
3. Determination of the optimal replacement content of Portland cement by stone powder using particle packing methods and analysis of the influence of the excess water on the consistency of pastes
Resumo O cimento Portland é considerado o componente de base com o maior impacto ambiental na construção civil, em termos de emissões de CO2. Quanto aos agregados, o processo de cominuição das rochas, além da areia artificial, gera pó de pedra que acaba sendo armazenado ao ar livre, gerando impactos ambientais. Assim, a substituição do cimento por
Rev. IBRACON Estrut. Mater.. Publicado em: 20/05/2019
-
4. The impact of nonsyndromic cleft lip with or without cleft palate on oral health-related quality of life
Abstract Nonsyndromic cleft lip with or without cleft palate (NSCL±P) compromises oral health, leading to missing or malformed teeth, and hampering oral hygiene. Apart from anatomic damages, NSCL±P also culminates in an impact on the routine quality of life with social privation and psychological embarrassment. Objective To evaluate the impact of NSCL±P
J. Appl. Oral Sci.. Publicado em: 05/04/2018
-
5. Treatment of experimental periodontal disease by laser therapy in simvastatin-modified rats
Abstract Low intensity laser can be used as a promising alternative in the treatment of periodontal disease. Objective The aim of this study was to evaluate low-level laser therapy (LLLT) as an adjuvant treatment for scaling and root planing (SRP) for the treatment of induced periodontitis in simvastatin-modified rats. Material and Methods A total of 180
J. Appl. Oral Sci.. Publicado em: 2017-08
-
6. Nano Coated Lead Free Solders for Sustainable Electronic Waste Management
ABSTRACT Lead has been used in a wide range of applications, but in the past decades it became clear that its high toxicity could cause various problems. Studies indicate that exposure to high concentrations of lead can cause harmful damages to humans. To eliminate the usage of lead in electronic products as an initiative towards electronic waste management
Braz. arch. biol. technol.. Publicado em: 23/01/2017
-
7. Determinação eletroquímica de glicerol em biodiesel por amperometria de múltiplos pulsos com eletrodo de ouro
Biodiesel is the fuel obtained from vegetable oils or animal fats that can partially or totally replace diesel oil. Besides being obtained from renewable sources, biodiesel is less polluting than diesel and biodegradable. One disadvantage of biodiesel is the byproduct of transesterification reaction of raw material, glycerol, which can cause damages to combu
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/06/2012
-
8. Efeitos dos herbicidas clomazone e ametrina em parâmetros funcionais da espécie de peixe neotropical Prochilodus lineatus / Effects of the herbicides clomazone and ametryn on functional parameters of the neotropical species of fish Prochilodus lineatus
O uso de biomarcadores é importante para avaliar os efeitos causados por agrotóxicos em organismos aquáticos como os peixes. No presente estudo foram utilizados os parâmetros hematológicos, metabólico (glicose plasmática), osmoiônicos (íons Na+, K+ e Cl-), bioquímicose genotóxico (ensaio do cometa), para avaliar a toxicidade dos herbicidas ametrin
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/03/2012
-
9. Polissacarídeos da alga marinha lithothamnion muelleri: obtenção, caracterização química e atividade antiartrítica
Marine organisms are a promising source of bioactive compounds, including red seaweeds, which are known to produce sulfated polysaccharides with different biological properties. The aim of this study was to obtain and characterize polysaccharide-rich fractions of the marine red alga Lithothamnion muelleri Lenormand ex Rosanoff (Hapalidiaceae), as well as to
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/02/2012
-
10. Concretes with red mud coarse aggregates
Red mud (RM) is a mineral waste, residue of the Bayer process used to obtain alumina from bauxite. While the exploration of rolled pebble damages the environment and is much more controlled by the government, the huge RM disposal areas do not stop increasing and polluting soil, rivers and groundwater sources in Amazon. In this work, the material mixtures use
Materials Research. Publicado em: 27/03/2012
-
11. Aplicabilidade do princípio da insignificância aos crimes que tutelam bens jurídicos difusos / Applicability of the insignificance principle to the crimes that protect the diffuse jurifical chattels
This work was developed to analyze the applicability of the insignificance principle to the crimes that protect the diffuse juridical chattels. The juridical chattel is the only element previews to the legislation capable of limiting the punishing power of the State, and it is unacceptable to abandon it, to relativize it or to loosen it. The diffuse juridica
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/04/2011
-
12. Fundamentação filosófica do princípio do mutualismo nos contratos de seguro
This essay intends to analyze the principle of mutualism in light of the eighteenth century contractual theory produced by Jean-Jacques Rousseau, as a form of free association that brings benefits for all of its members, which benefits are to be reached through the gathering of forces of those members aiming the common good. It will be explored the similarit
Publicado em: 2010