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This paper is intended to introduce the Bayesian network in general and the Naïve-Bayes classifier in particular as one of the most successful classification systems to simulate damage detection in engineering materials. A method for feature subset selection has also been introduced too. The method is based on mean and maximum values of the amplitudes of waves after dividing them into folds then grouping them by a clustering algorithm (e.g. k-means algorithm). The Naïve-Bayes classifier and the feature sub-set selection method were analyzed and tested on two sets of data. The data sets were conducted based on artificial damages created in quasi isotopic laminated composites of the AS4/3501-6 graphite/epoxy system and ball bearing of the type 6204 with a steel cage. The Naïve-Bayes classifier and the proposed feature subset selection algorithm have been shown as efficient techniques for damage detection in engineering materials.

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In this study, the effect of sugar palm nanocrystalline cellulose (SPNCC) loading (0.00-0.10 wt %) on the electrical resistance, resistivity, and conductivity of SPS/SPNCC (SPS -sugar palm starch) nanocomposite films were evaluated. The experiments were conducted using the four-probe method and Ohm's law, resistivity and conductivity equations were utilized to obtain the electrical properties. The results revealed that the resistivity values of SPS/SPNCC films were found to be in the range of 3.1 • 10 2 to 1.5 • 10 4 (Ω • cm).

With the advent of the increasing and complex pace of Information Technology (IT) innovation, coupled with maximized investments in IT as a strategy for businesses to stay competitive in a volatile market, and executive decision makers should possess effective IT governance. Effective IT governance is viewed as a great mechanism to use information and processes which in turn leads to greater profits and present future benefits. Therefore, good IT governance structures guide organizations in better leveraging their IT spending on crucial business areas. The significance of IT governance affects the ability of the organization to fulfill its goals and IT governance assists in the minimization of risks and maximization of value by focusing on performance and leveraging IT to satisfy the organization's and customer's long-term demands. Currently, organizations are showing interest in adopting the best practices and standards for IT governance. A framework offers the boundaries, the principles to follow and the guidelines through which a vision is provided as a philosophical base and the construction structure. It offers the basic structure that is flexible to apply in a certain environment. Such framework used in this study is COBIT. COBIT offers effective practices throughout a framework and lays down activities in an organized and flexible structure. These practices assist in optimizing IT-enabled investments, guarantee delivery of service and offers protection against who's accountable for the wrongs. This paper focuses on the COBIT framework and the importance of its adoption in academic institution, universities and organizations. Some case studies are selected and analyzed of adopting COBIT framework in higher education institutions. These case studies are Australian Higher