INTRODUCTION Hearing protection devices are one of the primary noise reduction tools in developing countries. This study is intended to produce and apply acrylonitrile butadiene styrene (ABS)/clay nanocomposites to fabricate a laboratory single cup earmuffs and then compare it with double cup and single cup pure ABS earmuffs in terms of noise attenuation performance and comfort. In addition, th...

in order to maintain the quality and increase the shelf life of fruits, many studies have been carried out in terms of the packaging specially applications of the nano-composite packages in the packaging. because of the low storage ability of the plum fruit, in this study, the effects of the four nano-composite packages and common polyethylene (as a control) were analyzed on maintaining quality...

ceramic dental materials have been considered as alternatives to metals for dental implants application. in this respect, zirconia tetragonal stabilized with %3 yttrium, is of great importance among the ceramic materials for endosseous dental implant application. because of its good mechanical properties and color similar to tooth. the aim and novelty of this study was to design and prepare y-t...

Background. In vitro studies have revealed a direct association between resin content and cytotoxicity of composite resins; however, implantation studies in this regard are sparse. This study investigates the relationship between filler content of composite resins and biocompatibility. Methods. This research employed twelve 180‒200-gr male Wistar rats, 1 nano-hybrid (Prime-Dent Inc.) and 1 micr...

friction stir processing was applied for fabricating an aluminum alloy based hybrid nano composite reinforced with nano sized al2o3 and micro sized graphite particles. a mixture of al2o3 and graphite particles was packed into a groove with 1 mm width and 4.5 mm depth, which had been cut in 5083 aluminum plate of 10 mm thick. packed groove was subjected to friction stir processing in order to im...

Tim Hoogenboom Birkholm 34 Hoofddorp +31614576051 [email protected] 0436267 Informatiekunde ii How Building a Pyramid in Tokyo Bay and Bridging User Communities Relate to Each Other. I magine a three-dimensional city that is twelve times higher that the Great Pyramid of Giza in Egypt. It is the largest structure on the world and it floats over Tokyo Bay while being build largely by robots. It ...

in the current paper, finite element method is employed for numerical simulations and the study of influential parameters on elastic modulus of polymer-matrix nano-composites. effects of different key parameters including particle elastic modulus, interphase elastic modulus, matrix elastic modulus, interphase thickness and particle volume fraction on total elastic modulus of nano-composite mate...

This paper portrays the various combinations of nanomaterials and matrix materials which were used to fabricate the nanocomposite laminates with and without fiber. An in-depth analysis was made on the various ways of preparing the nano influenced matrix and composite panels. In addition to this, an effort has been made to afford an outline of the impact of nanofillers within the matrix from the...

NieS/CeO2 electrodes have been prepared by a composite electrodeposition technique using nickel sulfaminate bath containing suspended microor nano-sized CeO2 particles. The composite electrodes exhibit a high activity for the hydrogen evolution reaction (HER) in alkaline solutions, most likely due to the synergistic effects between Ni and CeO2, as well as the increased surface area of the elect...

A novel route to fabricate nano-fiber anode material for solid oxide fuel cells (SOFCs) is presented. Firstly, uniform nano-fibers of 8 mol % Yttria Stabilized Zirconia (8YSZ) were formed in an electrospinning process; then, these electrospun fibers were calcined at temperatures up to 1300 °C; and finally the ceramic 8YSZ nano-fibers were coated with nickel in an electroless plating process. Th...