Liner
Mostrando 1-12 de 129 artigos, teses e dissertações.
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1. DURABILITY OF HDPE GEOMEMBRANES: AN OVERVIEW
The polymer demand for geotechnical applications has been growing. The geomembrane is a geosynthetic, manufactured, polymeric product and is often specified in environmental projects. Geomembranes started to be used in the 1930s but became more widespread in the 1940s. In the 1970s, geomembranes began to be specified for landfills. Over the past forty years,
Quím. Nova. Publicado em: 2020-05
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2. Emissões fugitivas de biogás em camada de cobertura de solo compactado em aterro sanitário
RESUMO As emissões fugitivas de biogás podem representar parcela significativa do fluxo de gases em aterros sanitários, inviabilizar o aproveitamento energético do metano (CH4), além de oferecer riscos à saúde ambiental das comunidades circunvizinhas ao empreendimento. Nesse contexto, este trabalho teve por objetivo avaliar as emissões fugitivas e os
Eng. Sanit. Ambient.. Publicado em: 2020-03
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3. The use of a liner under different bulk-fill resin composites: 3D GAP formation analysis by x-ray microcomputed tomography
Abstract Gap formation of composite resin restorations is a serious shortcoming in clinical practice. Polymerization shrinkage stress exceeds the tooth-restoration bond strength, and it causes bacterial infiltration within gaps between cavity walls and the restorative material. Thus, an intermediate liner application with a low elastic modulus has been advis
J. Appl. Oral Sci.. Publicado em: 25/11/2019
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4. Comparison of Wear Rate between Ceramic-on- Ceramic, Metal on Highly Cross-linked Polyethylene, and Metal-on-Metal Bearings
Resumo Objetivo Hoje, não há evidências sobre o acompanhamento em médio prazo da artroplastia total do quadril (ATQ) não cimentada com componentes de polietileno de alta ligação cruzada (highly cross-linked) sobre metal (MoP, na sigla em inglês), de cerâmica sobre cerâmica (CoC, na sigla em inglês), e de metal sobre metal (MoM, na sigla eminglê
Rev. bras. ortop.. Publicado em: 29/07/2019
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5. Antibiofilm Activity of an Experimental Ricinus Communis Dentifrice on Soft Denture Liners
Resumo A desvantagem dos materiais resilientes é a dificuldade de controle do biofilme. Este estudo comparou um dentífrico experimental contendo Ricinus communis, com dentifrícios comerciais quanto atividade contra biofilme formado em reembasador de próteses totais. Seiscentos espécimes foram distribuídos em 5 grupos (n=18/microrganismo): água; dentif
Braz. Dent. J.. Publicado em: 03/06/2019
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6. Effects of three silane primers and five adhesive agents on the bond strength of composite material for a computer-aided design and manufacturing system
Abstract Objective The objective of this study was to evaluate the effects of combinations of silane primers and adhesive agents on the bond strength of a composite block for a computer-aided design and manufacturing system. Material and Methods Three silane primers [Clearfil Ceramic Primer (CP), Super-Bond PZ Primer (PZ), and GC Ceramic Primer II (GP)] we
J. Appl. Oral Sci.. Publicado em: 07/05/2018
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7. Pulse Eletrodeposition of Ni/nano-Al2O3 Composite Coatings on Cast Iron Cylinder Liner
Ni/nano-Al2O3 composite coating by pulse electrodeposition method has been used for coating on cast iron liner material. The hardness has been increased from 308 HV to 1050 HV through conventional Watts bath and by applying Taguchi's optimization technique with optimum parameters of pulse frequency 120 Hz, duty cycle 40% and peak current density 0.7A/cm2. Th
Mat. Res.. Publicado em: 26/03/2018
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8. Materials used for indirect pulp treatment in primary teeth: a mixed treatment comparisons meta-analysis
Abstract: This study aimed to systematically review the literature to address the question regarding the influence of different materials in the clinical and radiographic success of indirect pulp treatment in primary teeth. A literature search was carried out for articles published prior to January 2017 in PubMed/MEDLINE, CENTRAL, Scopus, TRIP and ClinicalTr
Braz. oral res.. Publicado em: 18/12/2017
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9. [RETRACTED ARTICLE]: Load Dependent Wear Analysis of Manganese Steels - Influence of Al Content
In this paper influence of load on change in weight loss (mg), hardness and wear transition of 0.12 wt.% Al-Mn-steel (Steel A), 0.35 wt.% Al-Mn-steel (Steel B) and Mn-steel (Steel C) has been examined. With the increase in load these steels shows remarkable decrease in weight loss due to change in surface microstructure from austenite to ε or ά - martensit
Mat. Res.. Publicado em: 26/06/2017
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10. Experimental and Numerical Study on the Dispersion Patterns and Penetration Properties of MEFP with Seven Arc-Cone Liners
Abstract A new MEFP warhead with seven arc-cone liners which can form 7, 13 or 19 penetrators at different standoffs is designed. Dispersion patterns and penetration properties of MEFP are performed on five #45 steel targets of dimension 160cm x 160cm x 1.5cm at various standoffs (45cm, 60cm, 80cm, 120cm, 170cm). It reaches the conclusion that every surround
Lat. Am. j. solids struct.. Publicado em: 2017-06
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11. Dynamic Response and Microstructure Evolution of Oxygen-Free High-Conductivity Copper Liner in Explosively Formed Projectile
Abstract The dynamic response and microstructure evolution of oxygen-free high-conductivity copper in a shaped charge liner are investigated through microstructural examination of a soft-recovery EFP. Adiabatic shear bands and voids which is the failure original of copper EFP can be observed in the rear part of the projectile. Numerical simulation results il
Lat. Am. j. solids struct.. Publicado em: 2017
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12. Gas permeability of bentonite barriers: development, construction and testing of a measurement system
Abstract This article proposes a testing device to quickly and reliably estimate the gas permeability of bentonite-based clay barriers used in landfill cover systems. The testing methodology is based on a transient gas flow regime that passes through the barrier, therefore not requiring the use of sophisticated equipment that aim to maintain constant differe
REM, Int. Eng. J.. Publicado em: 2016-12