March 2012
Improving the quality of pigskin leather texture images using enhanced image processing
In this paper, we propose a method to improve the quality of pigskin leather texture images using digital image processing approach. The proposed method intends to minimize the imbalance illumination problem that occurs in the images captured from consumer leather products. This method is compared with the other methods in the literature such as contrast adaptive binarization method, and the results showed that the...
March 2012
Assessing the performance of improved harmony search algorithm (IHSA) for the optimization of unconstrained functions using Taguchi experimental design
This paper describes the meta-heuristic improved harmony search algorithm (IHSA) and analyzes the performance of IHSA in solving unconstrained function minimization problems. The most important challenge to this algorithm is setting the parameters for various optimization problems. Performance of IHSA is quite sensitive to initial settings. Using Taguchi’s experimental design to arrange IHSA parameters, the...
March 2012
Physico-chemistry, mineralogy, geochemistry and nutrient bioaccessibility of geophagic soils from Eastern Cape, South Africa
The consumption of soils is widely practiced in several rural communities in the world including the Eastern Cape Province of South Africa which is considered to be poor with a large rural population where culture and indigenous practices remain endemic and well entrenched. This pioneering study of geophagic soils from the province had its primary objective of understanding their physico-chemistry, mineralogy, and...
March 2012
Intelligent computer vision system for Sprague-Dawley rat sperm classification using gray-level microscopic images
This paper presents a development of intelligent computer vision system for Sprague-Dawley rat sperm classification. The system is developed to help pathologists and improve the current conventional detection methods and classification of Sprague-Dawley rat sperm. The conventional method tends to result in errors and is also time consuming. Thus, the new computer vision system is developed to overcome these problems...
March 2012
Comparison of the tissue biocompatibility of Resilon and gutta-percha cones
The aim of this study was to evaluate the tissue biocompatibility of Resilon compared to gutta-percha cones. Three subcutaneous pockets were made in the back of 36 rats weighing between 200 to 250g. Subcutaneous pockets were left unfilled (control, 1 pocket) or filled with Resilon (1 pocket) or gutta-percha (1 pocket). At 3, 10, 30 and 90 days after implantation, 9 rats were killed and the materials were removed...
March 2012
Influences of the window size of moderate resolution imaging spectroradiometer (MODIS) aerosol optical thickness (AOT) values on particulate matter (PM10) motoring in Klang Valley, Malaysia
Remote sensing has been shown to be a useful tool in retrieval aerosol optical thickness (AOT) in particulate matter (PM) pollution monitoring. In this study, daily AOT data retrieved from moderate resolution IMAGING spectroradiometer(MODIS) and the amount of PM10 measured at eight air quality monitoring ground stations in Klang Valley from 2004 to 2006 were used. The AOT values consisted of...
March 2012
Hysteresis parameter identification of hybrid dynamical systems
This paper discusses the identification of a class of hybrid dynamical systems whose discrete states have hysteresis phenomenon. The identification model is piecewise affine model along with hysteresis switching law. The first step of the proposed identification method is the estimation of the local parameter vectors for small neighbourhood of each measured data point. Then the local parameter vectors are clustered....
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