Virtual University And Globalisation

Globalization as an inevitable process in the twenty-first century in economic, political and cultural dimensions creates changes in education and higher education. Virtual universities have important role in globalization. It is clear that globalization in higher education can affect on other area same economic, culture and etc. Virtual university with special programs and use of information and communication technology (ICT) can show the impact of globalization on society, the economy, and the world system. At virtual universities there are international programs that extend globalization. Globalization requires the existence and development of an advanced information and communications infrastructure. And at virtual university that is new phenomenon in new age we can provide these infrastructures. Also, globalization requires a different education that enhances the ability of learners to access, assess, adopt, and apply knowledge, to think independently to exercise appropriate judgment and to collaborate with others to make sense of new situations. In this paper researcher want to show the impact of keys factors at virtual university on the globalization. Keywords: Virtual University, Globalization, Higher education

Robust active heave compensated winch-driven overhead crane system for load transfer in marine operation

Active heave compensation (AHC) is important for load transfer in marine operation using the overhead crane system (OCS). The control of marine OCS aims to continuously regulate the displacement of the cart and the payload sway angle, whilst at the same time, maintaining the gap between the payload and the vessel main deck at a desirable and safe distance. As the marine OHC system is to be operated in a continuously changing environment, with plenty inevitable disturbances and undesirable loads, a robust controller, i.e., active force control (AFC) is thus greatly needed to promote accuracy and robustness features into the controllability of OCS in rough working environment. This paper highlights a novel method for controlling the payload in an OCS based on the combination of both AFC and AHC. Results from the simulation study clearly indicate that the performance of OCS can be greatly improved by the proposed robust AFC controller, as compared with the classical PID controller scheme

Timber species in Malay wood carving

Woodcarving is part and parcel of vernacular Malay architecture and craft in Peninsular Malaysia and Southern Thailand. Timber architecture, boats and canoes, hilts and sheath of weapons, musical instrument and utensils are adorned with carving motifs of flora, calligraphy, geometry, fauna and cosmic features Apart from the knowledge and skills on woodcarving, selection of timber species is a determining factor in the making of the carving. This study investigates the criteria used by Malay craftsmen in selecting timber species for their carvings. The method of investigation include (1) review of measured drawing reports of timber building from Universiti Teknologi Malaysia archive, (2) interview with woodcarvers on small and intricate crafts, (3) interview with caretakers or residents of the buildings, and (4) literature review on timber species from Forest Research Institute Malaysia archive on timber classification and its characteristics. Information from the drawings, interviews and literature are triangulated to obtain the types of carved components in architecture and crafts, types of timber species and reasons of their selection. It is found that the Malay woodcarvers observed three factors in selecting timber species for their carvings. The factors are availability of timber, physical characteristics and durability, and craftsmen’s spiritual beliefs towards the timber species. Most carved building components are made from heavy hardwood species such as cengal and merbau because of their strength and durability and availability of sawn timber in large volumes. Motifs of flora, calligraphy, geometry, fauna and cosmic features are depicted on to the components as well as to crafts such as weapons, utensils, tools and furniture. However timber species with fine grains and lustrous surfaces and believed to possess strong spirit such as kemuning and kenaung are carved into hilts of weapons. These criteria address the intrinsic knowledge of the woodcarvers upon the beauty and meaning of tropical timbers and hence in the identity of the carving

Authentication enhancement of RFID card using an electronically clippable shield and fingerprint-biometrics

Radio frequency identification (RFID) is a technology that employs basic identifier of an object embedded in a chip, transmitted via radio wave, for identification. An RFID Card, responds to query irrespective of ‘Who’ holds the card; like a key to a door. Since an attacker can possess the card, access to such object can therefore be easily compromised. This security breach is classified as an unauthorized use of card, and it forms the bedrock for RFID card compromise especially in access control. As an authentication enhancement mechanism, this study designed and developed a method termed BIO-THENTIC Card, that integrates three existing mitigation methods which are physical clip tag, Faraday shield and fingerprint authentication; to prevent and also protect this weakness. The Bio-Thentic Card was fabricated, tested and assessed in line with the known threats, and attacks; and it was observed to proffer substantive solution to unauthorized use of RFID Card

Fuzzy C-Mean And Genetic Algorithms Based Scheduling For Independent Jobs In Computational Grid

The concept of Grid computing is becoming the most important research area in the high performance computing. Under this concept, the jobs scheduling in Grid computing has more complicated problems to discover a diversity of available resources, select the appropriate applications and map to suitable resources. However, the major problem is the optimal job scheduling, which Grid nodes need to allocate the appropriate resources for each job. In this paper, we combine Fuzzy C-Mean and Genetic Algorithms which are popular algorithms, the Grid can be used for scheduling. Our model presents the method of the jobs classifications based mainly on Fuzzy C-Mean algorithm and mapping the jobs to the appropriate resources based mainly on Genetic algorithm. In the experiments, we used the workload historical information and put it into our simulator. We get the better result when compared to the traditional algorithms for scheduling policies. Finally, the paper also discusses approach of the jobs classifications and the optimization engine in Grid scheduling

A review on enhancing the teaching and learning of thermodynamics

Thermodynamics is a subject that deals with energy and is one of the most advanced tools for understanding our physical universe. Engineering students’ difficulties in learning thermodynamics occur globally as indicated by the literature. There are various studies reporting on efforts made to overcome the deficiencies and suggestions of teaching approaches to enhance students learning such as blended learning approach, active learning techniques, computer-based instruction, virtual lab – a web-based student learning tool for thermodynamic concept related to multi-staging in compressors and turbines, TESTTM software in design projects and laboratory and so on. This paper presents a review and analysis of the different approaches on supporting students learning of thermodynamics. The criteria for analysis are the characteristics of the learning system, the effectiveness based on students’ performance; the skill developed using the learning system, and students’ feedback

Vulnerability of public buildings subjected to earthquake by finite element modelling

Tremors in Peninsular Malaysia and East Malaysia due to Sumatra and Philippine earthquakes have been reported several times. Engineers are concerned of the seismic vulnerability of public buildings due to lack of earthquake consideration in Malaysia’s building design procedure. This study addresses the vulnerability of public buildings in Malaysia subjected to earthquakes from Sumatra and Philippines. A case study has been conducted on low rise to medium rise reinforced concrete buildings, which are mostly categorized as moment resisting frames. The buildings are analyzed using Finite Element Modeling (FEM) under different types of analyses including Free Vibration Analysis (FVA), and Time History Analysis (THA) considering low to medium earthquake intensities. The study indicates that more than 50% of the buildings produced dynamic amplification factors of slightly more than one indicating not much of a dynamic response to the buildings. The performances of the structure are shown by the yield point at beam-column connections where the internal forces at beam elements exceed the design capacity of the beams. In the non-linear analysis, the largest damage index is still under the intermediate level where no structural damage is indicated, but some non-structural damage are expected

Simulation of brittle damage for fracture process of endodontically treated tooth

The mechanics of brittle damage in porcelain of an endodontically treated maxilla incisor tooth was simulated using finite element method (FEM). For this purpose a very complex composite structure of endodontically treated tooth is simulated under transverse loading. Three dimensional (3D) model of human maxilla incisor tooth root was developed based on Computed Tomography (CT) scan images. Crown, core cement, resin core, dental post, post cement and dentin were created using SolidWorks software, and then the model was imported into ABAQUS-6.9EF software for nonlinear behavior analysis. This study utilizes finite element method to simulate onset and propagation of crack in ceramic layer (porcelain) by the cause of both tension and compression loading related to complexity of the geometry of tooth implant. The simulation has been done using brittle damaged model available in ABAQUS/Explicit in quasi-static load condition. The load-displacement response of whole structure is measured from the top of porcelain by controlling displacement on a rigid rod. Crack initiated at the top of porcelain bellow the location of the rod caused by tension damage at equivalent load of 590 N. Damage in porcelain accounts for up to 63% reduction of whole structure stiffness from the undamaged state. The failure process in porcelain layer can be described by an exponential rate of fracture energy dissipation. This study demonstrated that the proposed finite element model and analysis procedure can be use to predict the nonlinear behavior of tooth implant

Solid state morphology and band gap studies of ETS-10 supported CdS nanoparticles

Engelhard titanosilicate (ETS-10) supported cadmium sulphide (CdS) nanoparticles were synthesized and characterized by various solid state techniques including: XRD, DR UV-Vis, TEM and FESEM. The effect of different synthesis routes of CdS nanoparticles on its physicochemical character was studied. It was observed that CdS nanoparticles prepared by both in situ sulphur reduction (CdS-IS) and reverse micelle (CdS-RM) methods showed similar properties. However, CdS-IS nanoparticles are more feasible and economically practical. The reflectance measurements of the as-synthesized CdS nanoparticles are apparently blue-shifted compared to bulk CdS. This phenomenon of blue-shifted absorption edge has been ascribed to an increase in bandgap energy with a decrease in particle sizes. The bandgap of the as-synthesized CdS samples was calculated from the linear correlation of [F(R) h?]2 and h?. The bandgap of CdS in ETS-10 was noticeably slightly reduced when compared with the as-synthesized CdS (8 nm) due to the formation of cluster arrays on the pores of ETS-10

Effects of montmorillonite nano-clay fillers on PEI mixed matrix membrane for CO(2) removal

This paper focuses on the effect of montmorillonite nano-clay fillers on polyetherimide (PEI) mixed matrix membrane, specifically upon the removal of carbon dioxide. Five different types of montmorillonite (MMT) nano-clays, including unmodified and industrially modified clays, were used as filler to fabricate asymmetric flat sheet mixed matrix membrane (MMM) via a dry/wet phase inversion technique. The five types of clay used were: raw MMT, Cloisite 15A, general MMT, hydrophobic MMT and hydrophilic MMT. The MMTs were characterized by X-ray diffractometry (XRD), thermal gravimetric analysis (TGA), Fourier-transform infrared (FTIR). The fabricated MMMs were characterized by differential scanning calorimetry (DSC), field emission scanning electron microscopic (FESEM) and pure gas permeation testing. The gas permeation results revealed the following order in terms of the permselectivity for CO2/CH4 separation: Cloisite 15A > general MMT > hydrophilic MMT > hydrophobic MMT > raw MMT. The best results were obtained at 0.5 wt.% Cloisite 15A loading where the selectivity enhancement was about 28% as compared to that of neat PEI