October 2013

On consistency and security issues in collaborative virtual environment systems

This paper survey security issues in collaborative virtual environments (CVEs) systems. In CVE, multiple users work on different computers which are interconnected through different networks to interact in a shared virtual world. Due to the nature of the geographically disperse users and their connection via different networks, there are numerous security threats that denied fulfillments of most important CVE...

Author(s): Abdulsalam Ya’u Gital, Abdul Samad bn Ismail and Shamala Subramaniam

October 2013

Studies on the potentials of Balanites aegyptiaca seed oil as raw material for the production of liquid cleansing agents

The seed oil of Balanites aegyptiaca was extracted and its chemical and physical properties were evaluated. The chemical parameters investigated include: saponification value (SV), iodine value (IV), peroxide value (PV) and free fatty acid (%FFA). These were found to be 168.6 mgKOH/g, 78.7 gI2/100 g, 6.0 mEq/kg and 0.18 mgKOH/g, respectively. The physical parameters evaluated include: percentage yield (49.9%),...

Author(s): Manji A. J., Sarah E. E. and Modibbo U. U.   .    

October 2013

Physicochemical investigation of the drinking water sources from Mardan, Khyber Pakhtunkhwa, Pakistan

A total of 39 drinking water sources were analyzed for important physicochemical parameters to evaluate their suitability for human consumption. Samples were collected from the ground water supplies (tube wells, open wells and hand pumps) of highly populated 13 union councils from the urban area of district Mardan. Physical parameters studied include temperature, color, taste, odor, total dissolved solids (TDS),...

Author(s): Naeem Khan, , Syed Tasleem Hussain, Abdus Saboor, , Nargis Jamila,  and Kyong Su Kim

October 2013

Multi-core large-scale image-based modeling

Large-scale image-based modeling is a challenging and important research topic, which has wide applications in various areas. Existed serial methods consume a significant amount of time for large problems. With the emergence of multi-core computers, it is possible to speed up the method using central processing unit (CPU) parallelism. In this paper, we present the design and implementation of multi-core large-scale...

Author(s): Kun Li, Chao Song, Jingyu Yang and Jianmin Jiang

October 2013

Dry season predictive technique for estimating the hydrocarbon degradation in a continuous discharge of wastewater in pond system

A new correlation has been developed in this paper for predicting hydrocarbon degradation in a continuous discharge of wastewater in a pond system for dry season. The correlation was developed using force balance model on a fluid element in a pond (hydrodynamic model). Mathematical technique known as separation of variables was applied to the general solution obtained from the hydrodynamic model. The degradation rate of...

Author(s): Ukpaka, C. P., Ogoni, H. A., Amadi, S. A. and Akor, J. A.