Volume 6, Issue 3 (2013) | American Journal of Engineering and Applied Sciences

Dynamic Propagation Problems of Mode III Semi-Infinite Crack

Lu Nian-Chun — 2013-08-28

American Journal of Engineering and Applied Sciences, Published online: 28 August 2013; doi:10.3844/ajeassp.2013.241.251

By means of the theory of complex functions, dynamic propagation problems of mode III semi- infinite crack were researched. The problems studied can be facilely transformed into riemann-hilbert proble...

Photocatalytic Decolourization of Textile Effluent Containing Reactive Red 120 Dye With UV/TiO₂

Rishi Ananthashankar — 2013-08-28

American Journal of Engineering and Applied Sciences, Published online: 28 August 2013; doi:10.3844/ajeassp.2013.252.262

The efficiency of degradation of an aqueous solution of reactive red 120 dye using Advanced Oxidation Process (AOP) was evaluated. A low pressure UV lamp and a combination of UV/TiO2 were tested using...

Computer Machine Vision Inspection on Printed Circuit Boards Flux Defects

Ang TeohOng — 2013-08-28

American Journal of Engineering and Applied Sciences, Published online: 28 August 2013; doi:10.3844/ajeassp.2013.263.273

The new visual inspection systems techniques using real time machine vision replace the human visual manual inspection on PCB flux defects, which brings harmful effects on the board which may come in ...

Applying the Holistic Approach to the Physical Sciences and Engineering Systems

Joseph Z. Ben-Asher — 2013-08-28

American Journal of Engineering and Applied Sciences, Published online: 28 August 2013; doi:10.3844/ajeassp.2013.274.281

The holistic approach is applied to several examples from the field of physics, engineering and systems engineering and its benefits are demonstrated. In all examples a holistic picture is used and st...

Comparison of Bet and Water Adsorption Techniques

B. H. Diya’uddeen — 2013-08-28

American Journal of Engineering and Applied Sciences, Published online: 28 August 2013; doi:10.3844/ajeassp.2013.282.285

The effect of activated carbon surface area on the amount of fluid adsorbed is significant. Thus, the surface area of an adsorbent is an important factor. The use of the costly BET measurement method ...

Development of Basin Solar Still by Adding Magnetic Treatment Unit and Double Glass Cover Provided with Water

Asaad Rehman Saeed Al-Hilphy — 2013-08-28

American Journal of Engineering and Applied Sciences, Published online: 28 August 2013; doi:10.3844/ajeassp.2013.286.296

The basin solar still was developed by adding a magnetic treatment unit, it’s energy 0.12 Tesla and two layer of glass provided with water between them. The study was conducted by testing the device...

Fire Design: Direct Comparison Between Fire Curves. The Case Study of a Nursery

Mara Lombardi — 2013-09-09

American Journal of Engineering and Applied Sciences, Published online: 9 September 2013; doi:10.3844/ajeassp.2013.297.308

According to fire safety engineering, the present study analyzes fire design settings for simulation of fire in a nursery and proposes to compare simulations developed with a natural fire curve and no...

Identification of Multi-Cracks in the Gate Rotor Shaft Based on the Wavelet Finite Element Method

Bin Zhao — 2013-09-12

American Journal of Engineering and Applied Sciences, Published online: 12 September 2013; doi:10.3844/ajeassp.2013.309.319

In order to have fault identification for the gate rotor shaft with multiple cracks effectively, the quantity identification method of the gate rotor shaft with multiple cracks based on wavelet finite...

Global Solar Radiation Studies Due to Sunshine Hours and Other Meteorological Parameters

Mfon David Umoh — 2013-09-30

American Journal of Engineering and Applied Sciences, Published online: 30 September 2013; doi:10.3844/ajeassp.2013.320.326

Multiple linear regression models were developed to estimate the monthly daily Sunshine Hours using four parameters during a period of eleven years (1997-2007) for locations in South Eastern Nigeria. ...

Development and Evaluation of a Low-Density Biomass Feeding System for Fluidized Bed Gasifiers

A. E. Ghaly — 2013-11-07

American Journal of Engineering and Applied Sciences, Published online: 7 November 2013; doi:10.3844/ajeassp.2013.327.339

For efficient operation of a biomass gasifier, the biomass material must be fed continuously to the system. A feeding system for chopped straw and rice husk was designed, constructed and evaluated. It...