In the present work the effect of working fluid (Al2O3 + water nanofluid) on the efficiency of a parabolic trough solar collector was investigated experimentally. The weight fraction of nano particles was 0.1% and the particles dimension was 40 nm. Experiments were performed with...
Open access
Research Article10.9734/BJAST/2015/11946
Wide application and versatility of steel have resulted in the need to improve its mechanical properties at desired temperature and microstructure to achieve production goal and reliable service performance. Quenching, a method of improving mechanical properties of steel, is char...
Open access
Research Article10.9734/BJAST/2015/13674
Aims: This study investigates the antifungal activity of green tea, neem leaf and aero root medicinal herbal extracts on organic cotton and bamboo knitted fabrics against Aspergillus and Trichoderma reesei. Study Design: To evaluate the antifungal activity of treated fabric using...
Open access
Research Article10.9734/BJAST/2015/17709
Weirs are important hydraulic structures which are widely used for various purposes. Recently, the need for irrigation water increased due to the expansion of agriculture areas, and hence a need to increase the discharge capacity of canals evolved. In canals with weir systems, as...
Open access
Research Article10.9734/BJAST/2015/17358
Aims: To determine the effects of various processing methods on the pasting and functional properties of Aerial yam (Dioscorea bulbifera) flour. Place and Duration: Department of Food Science and Technology, Michael Okpara University of Agriculture, Umudike, between June 2012 and...
Open access
Research Article10.9734/BJAST/2015/17915
This work studies the behaviour of some working fluids to be applied on trilateral thermal cycles characterised by the conversion of heat into mechanical work undergoing controlled isothermal expansion path functions. The considered trilateral cycles are relevant because of its a...
Open access
Research Article10.9734/BJAST/2015/18624
The presented work proposed a wavelet packet and Shannon entropy (SEWP) technique for handwritten Arabic characters recognition system. Entropy has been applied in many applications. However, the combination of Shannon entropy with wavelet transform (WT) is proposed in this study...
Open access
Research Article10.9734/BJAST/2015/15512
Onitsha is a commercial, ecclesiastical and administrative city located on 6º49′30″E and 6º8′30″N in South-Eastern Nigeria with a high population density. The study area is close to a confluence and occupies a landmass of 300 km2 and geologically belongs to the Ameki group in Ana...
Open access
Research Article10.9734/BJAST/2015/16279
Aims: The paper describes some methods based on statistical tools and time-frequency analysis for extracting features in frequency and temporal domain that may be used as predictors of Paroxysmal Atrial Fibrillation Place and Duration of Study: Department of Computer Engineering,...
Open access
Research Article10.9734/BJAST/2015/17451
Bruno Henrique Leite Gonçalves, Sarita Leonel, Marco Antonio Tecchio, Rafael Augusto Ferraz, Jackson Mirellys Azevedo Souza & Lucas Lencioni Arruda·Current Journal of Applied Science and Technology·2015
The carbohydrate storage is necessary to support the plant growth in periods of stress, during the dormancy, in the beginning of the vegetative development and during the fruiting time. In this context, this work intended to evaluate the carbohydrate concentrations of the peach (...
Open access
Research Article10.9734/BJAST/2015/17846