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In this study, a three-phase four switch inverter topology is proposed for PV systems. In power stage, a three-level neutral point clamped inverter is adopted. Thus, advantageous of the multilevel inverter topologies have been obtained with reduced number of switches. The proportional-resonant controller is designed to control the output voltage of the inverter to maintain a sinusoidal output voltage...
Named Data Networking (NDN) is one of the most promising future Internet architectures, which supports communications based on content names but not the content locations. Clients can retrieve content only by sending an Interest packet, which includes the content name. However, independent Interest packets will cause heavy loads on the routers, particularly in the Internet of Things (IoT) scenarios...
This paper demonstrates the difference in rules and their impact in procedural generation of item in role-playing game. The main aims of this project are to: create a wave challenge-based game prototype that generates 2 items using the two rule-based randomized algorithms per wave, and identify the reasons in rules that affect the user's preference of item. Experimental results demonstrate success...
Deep learning has become a popular sub-study in machine learning in the recent years due to the conclusions of development in computer hardware systems and big data. Deep learning is used successfully in image classification, speech recognition, natural language processing, and so on. Controlled intake of nutrition is recommended as a condition for being a healthy individual. Knowing and monitoring...
Learning natural disaster safety is important to equip human with awareness and preparedness if the disaster happens. Hurricane is an extreme and dangerous natural disaster which can cause loss of property and life. However, the disaster safety learning in Malaysia only covers flood, earthquake and fire. There is no safety learning to teach hurricane in Malaysia yet. Due to that, Malaysians are still...
The predictive proportional integral (PPI) controller being simple and non conservative like its Smith predictor and internal model control (IMC) counterparts, has the ability to be employed in environments characterised by uncertainties such as stochastic network delays. However, its performance degrades in the presence of measurement noise. This is due to the prediction involve in the controller...
Control of CSTR process has been challenging due to highly nonlinear and dynamic behavior. Furthermore, the CSTR processes are unstable. The use of PID controllers for such processes has been attempted. However, poor performance is obtained due to limitations of the PID controllers. On the other hand, using heuristic algorithms to tune the controllers only gives optimal performance for a restricted...
While participatory design (PD) has always been used in the context of community-based design, its application in designing primary school educational games is quite unique and requires total participation from children. Before applying PD in primary schools for game design, there are processes that must be identified. The selection of journal articles and papers are based on rigorous systematic literature...
To cope with increasing mobile data traffic, researchers are currently working on traffic offloading techniques for delivering data over unlicensed cellular bands. Current offloading schemes based on offloading data to Wi-Fi regardless Wi-Fi has sufficient throughput or not. Though, we propose a novel offloading technique based on the Remaining Throughput Scheme (RTS) for Wi-Fi selection. In our proposed...
In this study, using surveillance videos, an operator interactive removed object detection algorithm is developed. Using dual foregrounds, static foreground regions are detected. Then, these detected regions are classified with a one-class classifier to decide whether a removed/stolen object is present in that region. For training the classifier, the region of interest is selected by the operator...
EEG signal is used to establish a communication channel between brain and control device. A common scenario of machine learning based brain computer interface (BCI) is class wise accuracy is different from overall accuracy. Accuracy for one class is worse than overall accuracy. Because, error rates of all classes are not converging in same rate during training of learner. Active class selection (ACS)...
Field polynomial division can be found in applications such as error detection and data encoding for digital communication systems. In addition, it implements the extended Euclidean algorithm (EEA), which can be used as the field inversion building block of elliptic curve cryptosystem. The unpredictability of the iterative algorithm of polynomial division in the EEA-Based field inversion results in...
The performance of a low-complexity detection technique for OFDM-IM over the Nakagami-m fading channel has been analyzed. The orthogonal frequency-division multiplexing with index modulation (OFDM-IM) has recently been used in conjunction with the subcarriers using on-off keying modulation. The result shows improved performance in comparison with the conventional OFDM. The closed-form expression for...
Mobile ad hoc networks (MANET) is a type of networks that consists of autonomous nodes connecting directly without a top-down network architecture or central controller. Absence of base stations in MANET force the nodes to rely on their adjacent nodes in transmitting messages. The dynamic nature of MANET makes the relationship between nodes untrusted due to mobility of nodes. A malicious node may...
Creativity has long been recognized as important in the engineering field. Despite the fact that creativity is an important element in the engineering profession, educators in engineering education still face difficulties in assessing or quantifying creativity among their students. It has been reported that the creativity levels among American students decreased from 1990 to 2010. Surprisingly, the...
Millions of people suffer a stroke each year. One of the problems after stroke is hemiplegic hand. In previous studies a lot of robotic based devices has been suggested for rehabilitation of hemiplegic hand. Actuators using for force transmitting in previous devices have some disadvantages. One of them is misalignment on the centre of rotation between joints used in devices and joints of the hand...
In remote sites (north Canada, islands …); diesel generators are used to produce electricity. This method is relatively inefficient, very expensive and responsible for the emission of large amounts of greenhouse gases. The development and use of a wind-solar-diesel-battery hybrid system will eliminate the main barriers to the deployment of renewable energy in remote locations and decrease production...
Routing protocols for Mobile Ad hoc Networks (MANETs) have been extensively studied. However, the presence of malicious nodes makes it difficult to establish a valid route. Some of the well-known source routing protocols presented in the literature which claim to establish secure routes are prone to hidden channel attacks. In this paper, we address this issue and present a novel protocol based on...
Electro Pneumatic Trainer for educational applications is developed as supporting tools towards the existing typical teaching and learning process. The main objective is to improve the learning outcome towards student's cognitive knowledge and practical skill where the existing teaching and learning for electro pneumatic courses conducted in the classroom without emphasizing on simulation and complex...
Agarwood is well known as one of the expensive woods in the world. It has a unique scent which brings it to have wide usages especially in perfumery ingredient, as incense, in traditional medical preparation, and as symbol of wealth. Due to that, this paper presents the analysis on chemical profiles of agarwood chipwood, as a part of agarwood grading system. The work involved of Solid Phase Microextraction...
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