World Journal of Engineering: Volume 11 Issue 3

Synthesis and characterization of polyimide-carbon nanotube composites

Naidu Seetala, Cassandra Hendon, Naeem Tull-Walker, Johan Van Behr, Barry Hester, Marisabel Lebron-Colon, Michael Meador

Polyimide nanocomposites were prepared with 0 and 1 wt% single wall-and double wall- CNTs (functionalized and non-functionalized) from BPADA and BAPP by refluxing in NMP. These…

Waste to wealth: A case study of empty water sachet conversion into composite material for automobile application

Ibraheem Samotu, Muhammed Dauda, David Obada, Abdulmumin Alabi

Efforts have been made to turn empty water sachet (commonly called pure water nylon), palm kernel shell and iron filings, which are all wastes released into the environment from…

Electron microscope investigation of aluminium-comprising nanoparticles

N. Antonova

A new approach was suggested for creating nano-dimensional materials based on water-soluble polymers. Nano-seized Al-contained structures were synthesized; such structures were…

Effect of magnetic field dependent viscosity on Soret-driven ferrothermohaline convection saturating an anisotropic porous medium of sparse particle suspension

R. Sekar, K. Raju

Thermoconvective instability with Soret effect in multi-component fluids has wide range of applications in heat and mass transfer. This work deals with the theoretical…

Aanalysis of springback phenomenon in pipe bending

Rahul Hingole, Vilas Nandedkar

The term springback is defined as the change in geometry of a component after forming, when the forces are removed from forming tools. As springback affects the final shape of the…

Properties investigation of thin films photovoltaic hetero-structures

G. Golan, A. Axelevitch, Jacob Azoulay

This paper presents an experimental investigation of photovoltaic (PV) properties in heterostructures consisting of indium oxide and amorphous silicon thin films, grown on a…

Design and heat flow analysis of a commercial energy efficient in-line water heating system

R. Gouws, E. le Roux

In this paper, the authors provide the design, heat flow analysis and pressure analysis of a commercial energy efficient in-line water heating system in South Africa. The designed…

Analysis of surface mining subsidence laws under thick alluvial Quandian Mine

Qingfeng Hu, Bin Lei, Kaifeng Ma, Tiesheng Wang

In order to study the laws of surface subsidence due to mining coal under thick alluvium of Quandian mine, two survey lines were designed on the surface above the first face. By…

Experimental research of seismic behavior and surplus bearing capacity of CFDST under reversed loading

Xiannong Wang, Nannan Wang, Boya Jia

The concrete-filled double skin steel tubes (CFDST) column is a new type of steel composite structure column. At present, international and domestic research are still lacking in…

The optimization of a mathematical simulation program to describe the nitrogen removal of the oxidation ditch process

Qingxue Li, Xiaojun Fang, Cuiping Zhang, Wei Xiao

To achieve new emission standards and enhance the denitrification of the oxidation ditch in the Handan West Sewage Treatment Plant, this research used the ASM Bio-P model based on…

Solvent-free esterification of carboxylic acids with alcohols catalyzed by amphiphilic Brønsted acidic ionic liquids

Leqin He, Jiquan Zhao, Shenjun Qin, Tao Chang, Yuecheng Zhang, Guangqing Zhang, Xiaorui Gao

Five halogen-free amphiphilic Brønsted acidic ionic liquids (ILs) based on 3-(N, N-dimethylalkylammonium)-propanesulphonate quaternary ammonium zwitterions and p-toluene sulphonic…

Low-level logic fault testing ASIC simulation environment

Mansour Assaf, Leslie-Ann Moore, Sunil Das, Satyendra Biswas, Scott Morton

A low-level logic fault test simulation environment targeted towards application-specific integrated circuits (ASICs) in particular is proposed in this paper. The simulation…

Sliding mode versus PD control for cable-based robots

Abdelouahab Zaatri, Billel Bouchemal

Cable-based robots as well as their control are relatively new fields of research. The objective of this work is to design, simulate and compare two robot control techniques which…

Solution of the SEIR model of epidemics using HAM

Nirmala Ratchagar, S. Subramanian

In this paper, a new semi analytic technique namely the Homotopy Analysis Method (HAM) is applied for SEIR Epidemic model. HAM is different from already existing perturbation…

Optimization design of uncertainty fluid topology in the parallel connection of double pump

J. Liu, Z. Wei

This paper analyzes the characteristics of paste filling material and the parallel output of double pump. By combining the equipment layout of the paste filling station, using the…