World Journal of Engineering: Volume 15 Issue 4

Mechanical and microstructural properties of carbon nanotubes reinforced chromium oxide coated boiler steel

Khushdeep Goyal, Hazoor Singh, Rakesh Bhatia

The purpose of this study was to fabricate carbon nanotubes (CNT)-reinforced chromium oxide coatings and investigate mechanical and microstructural properties of these newly…

Castellated cruciform steel columns

Ebrahim Farajpourbonab, Hossein Showkati, Sunil Kute

The main function of the castellation process is making I-sections stiffer by increasing the height of web and supplying a higher moment capacity of primary axis than plain-webbed…

Influence of magnetohydrodynamics on peristaltic flow of a Walters B fluid in an inclined asymmetric channel with heat transfer

K. Ramesh, M. Devakar

The main purpose of this paper is to study the effect of heat transfer on the peristaltic flow of a magnetohydrodynamic Walters B fluid through a porous medium in an inclined…

Similarity solution and Runge Kutta method to a thermal boundary layer model at the entrance region of a circular tube

Ali Belhocine, Wan Zaidi Wan Omar

The purpose of this paper is to re-examine the assumptions implicit in Leveque’s approximation, and the variation of the temperature and the thickness of the boundary layer were…

Investigating the effect of helix angle and pressure angle on bending stress in helical gear under dynamic state

Prashant Jaysing Patil, Maharudra Patil, Krishnakumar Joshi

The aim of this paper is to study the effect of pressure angle and helix angle on bending stress at the root of helical gear tooth under dynamic state. Gear design is a highly…

Effects of adding mineral adsorbents to porous concrete for enhancing the quality performance of urban runoff systems

Sayed-Farhad Mousavi, Hojat Karami, Saeed Farzin, Ehsan Teymouri

This study aims to use porous concrete and mineral adsorbents (additives) for reducing the quantity and improving the quality of urban runoff.

Symbol error rate of MIMO single and double-Weibull fading channels with OSTBC and MRC

Keerti Tiwari, Davinder S. Saini, Sunil V. Bhooshan

This paper aims to exploit an orthogonal space-time block code (OSTBC) and maximal ratio combining (MRC) techniques to evaluate error rate performance of multiple-input…

Application of desirability function based response surface methodology (DRSM) for investigating the plasma arc cutting process of sailhard steel

Deepak Kumar Naik, Kalipada Maity

Plasma arc cutting (PAC) is extensively applicable for cutting the materials in faster speed with better accuracy in different manufacturing industries. The cutting of sailhard…

Effect of natural pozzolan on the fresh and hardened cement slurry properties for cementing oil well

Somia Bechar, Djamal Zerrouki

Wells’ cementing is an important and costly step in the engineering sector for oil and gas well. The purpose of this study was to investigate the use of Algerian natural pozzolan…

Harmonic reduction using a novel multipulse AC-DC converter

Rohollah Abdollahi

For direct torque controlled induction motor drives, an effective solution to eliminate harmonics is the use of multipulse alternating current (AC)-direct current (DC) converters…

Formulation and study of metal fiber-reinforced reactive powder concrete

Mounira Chadli, Mellas Mekki, Bouzidi Mezghiche

Reactive powder concretes (RPCs) are new concretes characterized by a particle diameter not exceeding 600 µm and very high compressive and tensile strengths. This paper aims to…

Production and characterization of organic solar cells

Kindness A.M. Uyanga, Modestus Okechukwu Okwu, A.O. Adeoye, S.E. Ogbeide

The study aims to carry out the production of a bulk heterojunction organic solar cell in a laboratory scale using a blend of poly (3-hexylthiopene) (P3HT) and [6, 6]-phenyl (C61…