The Effects of Design-Based Learning in Teaching Augmented Reality for Pre-University Students

This research project is about the innovation of a teaching and learning approach with the integration of augmented reality as the tool and the subject, named design-based learning (DBL), aimed to empower pre-university students’ learning performance and motivation. Across three lecture groups (n1 = 114, n2 = 98, n3 = 95), there is an increased in mean marks between two tests conducted prior to and post of DBL. The mean scores for learning motivation captured using instructional materials motivation survey (IMMS) for attention, relevance, confidence and satisfaction model are all above average of 3 out of 5

Development Of Conversational Agent To Enhance Learning Experience: Case Study In Pre University

Chatbot is an artificial intelligent application that can converse with a user through textual or auditory method. The chatbot can give a response according to their characteristic and domain knowledge. This study aims to evaluate the use of chatbot named eLVA among students at the Centre for Pre University Studies. A series of 10 questions was distributed to 40 students to evaluate the use of eLVA after they have experienced it. The results indicated that chatbot are most likely to be very helpful in teaching and learning because it has helped students getting an instant response. However, results showed that the main reason for students to stop using chatbot involved getting incorrect information and worried about Chatbot making mistakes. The result further show that there is no significant difference in the use of eLVa between male and female students. The study also found that there is no significant correlation between study program (Physical Sciences/Life Sciences) towards the use of eLVA

Simulation tools for mobile ad-hoc sensor networks: A state-of-the-art survey

Mobile ad-hoc sensor networks (MASNETs) have recently become an important area of research for Mobile adhoc networks (MANETs) researchers. The increasing capabilities and the decreasing costs of sensors make MASNETs applications possible to be deployed in real world. However, before such application can be deployed, their performance need to be measured first. But, the use of real-world measurement is costly and time consuming. Therefore, it is more economical and practical to use simulation tools to simulate MASNETs applications. Although, there are many existing simulation tools for MANETs, most of them are not suitable for MASNETs due to resource-constraint of such networks. Therefore, it is essential to have a survey of the existing simulation tools for MASNETs. In this paper, the comparative study on different simulation tools is conducted to identify the most appropriate tool for MASNET

The effects of transmission power control in mobile ad-hoc sensor networks

Preserving energy is a very critical issue in mobile ad-hoc sensor networks (MASNETs) because sensor nodes have a severe resource constraints due to their lack of processing power and limited in power supply. Since the communication is the most energy consuming activities in MASNETs, the power use for transmission or reception of packet should be managed as much as possible. One way to reduce energy consumption is by applying transmission power control (TPC) technique to adjust the transmission power in communication between nodes. This technique has been widely studied in MASNETs. However, as MASNET applications emerge, the unique characteristics of this network such as severe resource constraints and frequent topology change suggest that TPC might be useful to reduce energy consumption in MASNETs. Therefore, we investigate different effects of TPC on Ad hoc On-Demand Distance Vector (AODV) routing protocols for MASNETs. AODV is used as a medium of communication to assist the investigation of the effects of TPC in multihop communication in this networks with RandomWay Point (RWP) mobility model. Our simulation results show a noticeable effects of TPC implementation technique on MASNETs in respect to transmission energy consumption and packet received ratio at low node mobility. These results support the use of TPC technique to enhance the performance of multihop AODV routing protocol in MASNETs

Performance evaluation of AODV in MASNETs: Study on different simulators

Nowadays, most of researchers working on Wireless Sensor Networks (WSNs) focus on Mobile Ad-hoc and Sensor Networks (MASNETs) due to their wide range of potential applications ranging from underwater monitoring to search and rescue mobile robotics applications. Most of these applications are deployed in remote and unattended areas. Since MASNETs are energy-constrained networks which have a low radio frequency coverage, their network topologies are frequently change due to mobile sensor nodes. In this paper, through extensive simulation of two different simulators namely Avrora and Castalia, we evaluated the capability of Ad-hoc On Demand Distance Vector (AODV) routing protocol on how far it can react to different speed and density of mobile nodes in MASNETs. We investigated the performance of AODV in terms of the average percentage of packet loss with the various speed and density of mobile nodes. Our performance study demonstrates that both simulators show the performance of AODV is significantly decreased in mobile environment due to the frequent topology change in MASNET

An Analytical Study of LEACH Routing Protocol for Wireless Sensor Network

—The use of low power sensor nodes to collect useful sensing information effectively is critical for any wireless sensor network (WSN) application to last longer. To increase network lifetime, energy consumption is considered as one of an essential performance metric. Most of the current proposed routing protocols proposed to reduce the amount of energy consumed and to increase the network lifetime. The common pioneer hierarchical routing protocol for wsn such as Low Energy Adaptive Cluster Hierarchical Routing (LEACH) is also proposed to improve the energy efficiency of WSN. LEACH is a cluster based routing protocol in which sensor nodes are combined together to form separate clusters and every cluster has a leader node named cluster head (CH). In this paper, we have done the analytical study of LEACH protocol to identify to what extent LEACH protocol can perform in terms of average energy consumption and packet loss for different data rate

Scienceploration 2023

The Scienceploration Camp is an initiative of the Centre for Pre-University Studies, UNIMAS (PPPU), which aims to increase the interest in science among secondary school students. It is also an effort taken by PPPU towards the achievement of Sustainable Development Goals 4 in providing equal quality education and promoting lifelong learning opportunities for all. On top of that, this camp supports Sarawak’s Digital Economy Strategy in nurturing an integrated ecosystem to foster inclusive digital society, by building the right foundations to grow our local digital economy

Toward an intelligent tutoring system :a case study on ssx 1012 tamadun Islam and tamadun Asia 1

The internet provides an infrastructure that supports unprecedented communication capabilities and collaboration opportunities. The unique features and possibilities of the Internet such as hypertext and hypermedia, numerous websites with good quality sources of information, drastic development in electronic commerce, digital broadcasting and transfer, collaboration tools, are variable working together to create a fascinating environment where in diverse teaching and learning experiences can be developed

Evaluation of Security Mechanisms for Information Dissemination in Wireless Sensor Networks

In recent years, extensive research has been conducted on Wireless Sensor Networks (WSNs) due to their wide range of potential applications ranging from commercial to critical military and health care applications. For most of these applications, security is an important requirement. However, security mechanisms in WSNs differ from traditional ad-hoc networks due to their energy and resource constraints. Due to these constraints, the sensor nodes are vulnerable to security threats because the traditional security measures are not enough to protect these nodes during information dissemination in WSNs. Thus, in this paper we have studied TinySec security measures, Authentication-only (TinySec-Auth) and Authentication Encryption (TinySec-AE) in order to evaluate the suitability of these security measures for WSN applications. We have evaluated these TinySec mechanisms in terms of packet transmission time, average number of packet received and energy consumption. The simulation results show that TinySec-AE consumed more energy and required more time to transmit packet in comparing to TinySec-Auth due to higher computational time and longer packet size for extra encryption mechanism