Results 151 to 160 of about 35,968 (203)
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Observations on cavity liners for composite resin restorations
The Journal of Prosthetic Dentistry, 1976Adhesion or surface roughness and discoloration at the interface between pulpinsulating materials and composite resins were taken as indications for interaction between the resins and the insulating materials. Some interaction occurred between all insulating materials and resins investigated.
R, Grajower, Z, Hirschfeld, M, Zalkind
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Altered geosynthetic clay liners: effect on the hydraulic performance of composite liners
European Journal of Environmental and Civil Engineering, 2015This study evaluates how alteration of geosynthetic clay liners (GCLs) affects the hydraulic behaviour of a composite liner when the geomembrane presenting a hole is overlying a GCL. Interface transmissivity experiments were performed on GCL specimens that were exhumed from field sites.
Bannour, H., Barral, C., Touze, Nathalie
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Aluminum Metal Matrix Composite Liner Testing
Proceedings of the Vertical Flight Society 71st Annual Forum, 2015Bearing liners are used in rotorcraft gearboxes to reduce wear between the bearing race and housing during aircraft operations. Bearing liners are typically made of steel, but a new aluminum Metal Matrix Composite (MMC) bearing liner material is currently being developed under the Future Advanced Rotorcraft Drive System (FARDS) program.
Jason Fetty +3 more
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Ceramic Matrix Composite Combustor Liner Rig Test
Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education, 2000The NASA High Speed Research (HSR)/Enabling Propulsion Materials (EPM) program was charged with the responsibility for developing the materials and technologies necessary to meet the High Speed Civil Transport (HSCT) engine requirements. The combustor liner was identified as a critical component for meeting the efficiency and environmental ...
David Brewer, Greg Ojard, Martin Gibler
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New composite liners for energy absorption purposes
Materials & Design, 2013Abstract This work studies the capacity of cork to act as material for the absorption of impact energy. Focus is given on the viability of hybrid paddings consisting of micro-agglomerate cork (MAC) and expanded polystyrene (EPS) through simulations of multi-impacts. EPS is a widely used material for energy absorption applications.
R.M. Coelho +3 more
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Plasma composition in a gas-liner pinch
Journal of Physics D: Applied Physics, 1982The properties of a new spectroscopic light source are analysed. It is demonstrated that the gas-liner pinch emits resonance lines from a homogeneous central layer without self-absorption effects. For investigations of the Lyman- alpha line, the electron density is adjusted to Ne approximately 2*1018 cm-3 and the electron temperature to kTe ...
K H Finken, U Ackermann
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Protective effect of polystyrene liners for composite resin restorations
The Journal of Prosthetic Dentistry, 1983The main purpose of lining cavities before insertion of composite resin restorations is to prevent bacterial contamination at the cavity walls. A thin film of polystyrene liner dissolved in ethyl acetate applied to all surfaces by compressed air provided good protection against bacteria on cavity walls under composite resin restorations.
M, Brännström +4 more
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Transient hydraulic behavior of two GMBs–GCLs composite liners
Geotextiles and Geomembranes, 2016Abstract In general, interface transmissivity is obtained based on measurements of the steady-state flow in composite geomembranes (GMBs) – geosynthetic clay liners (GCLs). However, transient flow rate has not been studied prior to this study. It has been already noticed that its consideration can lead to an important increase in predicted effluent ...
Bannour, H. +2 more
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Geotextiles and Geomembranes, 2012
Abstract Double composite liner systems (DCLSs) for municipal or hazardous waste landfills often include geomembranes (GMBs) and geosynthetic clay liners (GCLs). Heat generated within such landfills due to exothermic degradation of organic matter or hydration of incinerator ash creates thermal gradients across the liner.
Farzad M. Azad +3 more
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Abstract Double composite liner systems (DCLSs) for municipal or hazardous waste landfills often include geomembranes (GMBs) and geosynthetic clay liners (GCLs). Heat generated within such landfills due to exothermic degradation of organic matter or hydration of incinerator ash creates thermal gradients across the liner.
Farzad M. Azad +3 more
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Geosynthetics International, 2001
Rates of liquid flow through composite liners are intimately linked with the existence of a transmissive layer between the soil liner and the geomembrane. The aim of this paper is to propose analytical solutions for estimating the rate of liquid flow through composite liners for the case where two zones of different hydraulic transmissivities coexist ...
Touze, Nathalie, Rowe, R.K., Navarro, N.
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Rates of liquid flow through composite liners are intimately linked with the existence of a transmissive layer between the soil liner and the geomembrane. The aim of this paper is to propose analytical solutions for estimating the rate of liquid flow through composite liners for the case where two zones of different hydraulic transmissivities coexist ...
Touze, Nathalie, Rowe, R.K., Navarro, N.
openaire +2 more sources