Volume 9, Issue 1 (2016) | American Journal of Engineering and Applied Sciences

Dynamic Mechanical Properties of Fused Deposition Modelling Processed Polyphenylsulfone Material

Bolin Huang — 2015-07-16

American Journal of Engineering and Applied Sciences, Published online: 16 July 2015; doi:10.3844/ajeassp.2016.1.11

Fused Deposition Modelling (FDM) has attained its reputation due to the capability of rapidly fabricating prototypes from concept design to real parts in shorter time and lower cost than traditional m...

Electrical Properties of Cobalt Oxide/Silica Nanocomposites Obtained by Sol-Gel Technique

Gomaa A.M. Ali — 2015-11-18

American Journal of Engineering and Applied Sciences, Published online: 18 November 2015; doi:10.3844/ajeassp.2016.12.16

This work is an extension of our previous studies on cobalt oxide nanoparticles impeded in a silica matrix. Here we study the preparation and characterization of high cobalt content materials (60-90 w...

Fabrication and Tensile Property Analysis of Polymer Matrix Composites of Graphite and Silicon Carbide as Fillers

Vikram G. Kamble — 2015-12-03

American Journal of Engineering and Applied Sciences, Published online: 3 December 2015; doi:10.3844/ajeassp.2016.17.30

In a world there is ever-increasing demand for new materials, composite materials finds the topmost spot. Here in this work an attempt has been made to study the mechanical properties of Glass and Vin...

Castor Oil Based Epoxy/Clay Nanocomposite for Advanced Applications

Aditi Saikia — 2015-12-29

American Journal of Engineering and Applied Sciences, Published online: 29 December 2015; doi:10.3844/ajeassp.2016.31.40

Bio-based hyperbranched and linear epoxy resins were synthesized from monoglyceride of Ricinus communis oil. The nanocomposites of these hyperbranched and linear epoxies with 1, 2 and 3 wt% of OMMT we...

Large Scale Synthesis of ZnO Nanostructures of Different Morphologies through Solvent-free Mechanochemical Synthesis and their Application in Photocatalytic Dye Degradation

Raúl Sánchez Zeferino — 2016-01-16

American Journal of Engineering and Applied Sciences, Published online: 16 January 2016; doi:10.3844/ajeassp.2016.41.52

Well crystalline, near-stoichiometric zinc oxide nanostructures of different morphologies are fabricated in large scale, utilizing a simple, cost effective mechanochemical synthesis in absence of solv...

Impact of the Edges of a Backside Diffusive Reflector on the External Quantum Efficiency of Luminescent Solar Concentrators: Experimental and Computational Approach

Mauro Pravettoni — 2016-01-18

American Journal of Engineering and Applied Sciences, Published online: 18 January 2016; doi:10.3844/ajeassp.2016.53.63

Luminescent Solar Concentrators (LSCs) have been proposed in the 1970s as cheap planar concentrators for residential applications and nowadays represent a novel idea with excellent perspectives for bu...

A Unified Approach for the Shear Buckling Design of Structural Glass Walls with Non-Ideal Restraints

Chiara Bedon — 2016-01-22

American Journal of Engineering and Applied Sciences, Published online: 22 January 2016; doi:10.3844/ajeassp.2016.64.78

In this study, a unified design approach is assessed and proposed for the shear buckling verification of structural glass walls supported by non-ideal restraints. Based on the current trends of practi...

A General Strategy to Enhance Upconversion luminescence in Rare-Earth-Ion-Doped Oxide Nanocrystals

Guanying Chen — 2016-02-18

American Journal of Engineering and Applied Sciences, Published online: 18 February 2016; doi:10.3844/ajeassp.2016.79.83

We report a general strategy to enhance upconversion luminescence from rare-earth-doped oxide nanocrystals through tailoring the local crystal filed around rare earth ions. We show that upconversion l...

A Clean-Green Synthesis of Platinum Nanoparticles Utilizing a Pernicious Weed Lantana (Lantana Camara)

Musthafa O. Mavukkandy — 2016-02-23

American Journal of Engineering and Applied Sciences, Published online: 23 February 2016; doi:10.3844/ajeassp.2016.84.90

A rapid, reproducible single step method is proposed for synthesizing platinum nanoparticles using an invasive weed lantana (Lantana camara, L). The method involves mixing of platinum (VI) solution, l...

Porosity Analysis in Porous Brass Using Dual Approaches

Ryan Yeargin — 2016-02-25

American Journal of Engineering and Applied Sciences, Published online: 25 February 2016; doi:10.3844/ajeassp.2016.91.97

The goal of this research is to produce porous samples for various applications such as heat exchangers, filters and radiation shields. The level of porosity is an important objective yet the level of...

Factors Affecting Chemo-physical and Rheological Behaviour of Zr₄₄-Ti₁₁-Cu₁₀-Ni₁₀-Be₂₅ Metal Glassy Alloy Supercooled Liquids

Apicella Antonio — 2016-02-25

American Journal of Engineering and Applied Sciences, Published online: 25 February 2016; doi:10.3844/ajeassp.2016.98.106

Segregation by selective cold crystallizations and glass transition changes in Zr44-Ti11-Cu10-Ni10-Be25 metal supercooled metastable liquid annealed at different temperatures have been theoretically c...

Rapid Entire Body Assessment: A Literature Review

Dima Al Madani — 2016-02-26

American Journal of Engineering and Applied Sciences, Published online: 26 February 2016; doi:10.3844/ajeassp.2016.107.118

The aim of this review is to provide a summary of one of the observational postural analysis ergonomic assessment tools; Rapid Entire Body Assessment (REBA) in terms of its development, applications, ...

Scanning Electron Microscopic Evaluation of Self-Compacting Concrete Spalling at Elevated Temperatures

Mahmoud B. Alhasanat — 2016-03-07

American Journal of Engineering and Applied Sciences, Published online: 7 March 2016; doi:10.3844/ajeassp.2016.119.127

This paper reports the effect of addition of Polypropylene (PP) fibers in the performance of Self-Compacting Concrete (SCC) under elevated temperatures. Various SCC mixtures were made with PP fiber at...

Infiltration of Nanoparticles into Porous Binder Jet Printed Parts

Amelia Elliott — 2016-03-11

American Journal of Engineering and Applied Sciences, Published online: 11 March 2016; doi:10.3844/ajeassp.2016.128.133

The densification of parts that are produced by binder jetting Additive Manufacturing (AM; a.k.a. “3D Printing”) is an essential step in making them mechanically useful. Increasing the packing fac...

Investigating the Role of Fly Ash and Silica Fume in the Cement Hydration Process

Lucas Suarez — 2016-03-12

American Journal of Engineering and Applied Sciences, Published online: 12 March 2016; doi:10.3844/ajeassp.2016.134.145

This research work investigates the effect of fly ash and silica fume on cement paste hydration. Percentages of each additive were selected to replace the cement by volume to be studied at five differ...

The Use of Nano Silica for Improving Mechanical Properties of Hardened Cement Paste

Intisar Kuli — 2016-03-13

American Journal of Engineering and Applied Sciences, Published online: 13 March 2016; doi:10.3844/ajeassp.2016.146.154

The influence of adding Nano particles of silicon dioxide (SiO2) on cement pastes was studied for both water and vacuum curing methods. Specimens made up of different percentage of Nano Silica were te...

Dissolution Sintering Technique to Create Porous Copper with Sodium Chloride Using Polyvinyl Alcohol Solution through Powder Metallurgy

Cynthia Waters — 2016-03-13

American Journal of Engineering and Applied Sciences, Published online: 13 March 2016; doi:10.3844/ajeassp.2016.155.165

The main purpose of this paper was to investigate the relative densities, porosities, compression strength and energy absorbed by porous copper (Cu) formed via the dissolution sintering technique usin...

Effect of Nano Silica on the Compressive Strength of Harden Cement Paste at Different Stages of Hydration

Justin Montgomery — 2016-03-13

American Journal of Engineering and Applied Sciences, Published online: 13 March 2016; doi:10.3844/ajeassp.2016.166.177

This study investigated the compressive strength of hardened cement paste and the formation of Calcium Silicate Hydrate (C-S-H) with the addition of nano silica (SiO2). Compressive strength testing wa...

Investigating Effects of Water Conditioning on the Adhesion Properties of Crack Sealant

Ahmed Lamarre — 2016-03-14

American Journal of Engineering and Applied Sciences, Published online: 14 March 2016; doi:10.3844/ajeassp.2016.178.186

This paper investigates the effect of water exposure on three different crack sealants commonly used in cold, moderate and hot climates. It is hypothesized that water penetrates into the interface bet...