Sultan Zainal Abidin University

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    8142 research outputs found

    Thermophilic Campylobacter jejuni in Malaysian Salad Vegetables

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    Comparative Study of Physico-Chemical Analyses of Different Water Resources in Setiu Wetland, Terengganu.

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    Physico-chemical properties of water are usually reflecting the functioning of an aquatic ecosystem like Setiu Wetland, Terengganu. Therefore, this study was conducted to determine the physico-chemical properties and chemical nature of their water resources (trench, rivers, drainage and tap water) and their impact on sustainable water resource in Setiu Wetland, Terengganu. A total of 12 water samples were collected aseptically from in this area and the field work was conducted from August to September 2015. In-situ measurements of physico-chemical properties of the water samples were recorded using YSI Professional Plus Parameter (XYLEM, USA) with multi-sensor probe. The analyses of physico-chemical of water include of water temperature, barometric pressure, dissolved oxygen, specific conductance, conductance, redox potential, total suspended solids, salinity and pH. In comparison to previous study conducted in 2008, most of the parameters showed that water quality at Setiu Wetland, Terengganu remained Class 1 based on National Water Quality Standards for Malaysia. In conclusion, the various water resources in Setiu Wetland was in very good condition indicating that the habitats in Setiu Wetlands have conditions suitable to support a biotic community. Further study should be carried out in monitoring water qualities of the water resources at Malaysia to increase safety of water consumption

    Chromolaena odorata (L.) R.M. King & H. Robinson

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    Anthropometry correlation towards archery performance

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    This chapter assesses the association of a selection of anthropometry parameters in identifying HPA and LPA. It was shown that the selected parameters, i.e. abdominal circumference, arm span, calf circumference, height, hip circumference, thigh circumference and weight, are essential in the identification of potential of the archers. Furthermore, it was demonstrated that the linear SVM variation model provided the best prediction capability amongst the other evaluated SVM models. © 2019, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd

    An Enhanced Adaptive Duty Cycle Scheme for Optimum Data Transmission in Wireless Sensor Network

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    In wireless sensor network (WSN), energy efficiency is the most fundamental issue that requires special attention during the design of communication protocols. Energy waste is largely contributed by collision, idle listening, overhearing and over-emitting that occur at medium access control layer. One of the most widely used mechanism energy saving in WSN, specifically at MAC layer is Duty Cycle. Duty Cycling coordinates the sleep/wake-up time sensor nodes to maximize the network lifetime while achieving specific application goals such as high throughput or low latency. Most existing works focused more on static duty cycling which cannot guarantee the desire end-to-end delay at varying network condition. In applications with specific delay requirement, the duty cycling of every node should be adjusted separately ay runtime depending on the network conditions to achieve desired delay guarantees and energy efficiency. Recently, a few adaptive duty cycle schemes were introduced. Although energy consumption has been reduced by some degree, it leaves an open ended to the degradation of quality of service. In this research, we find the optimum data transmission in WSN. We purpose a variant of an adaptive duty cycle scheme for MAC protocol. By adaptive, these factors determine the duration of node’s listen period for various packet transmission scenarios and requirements. This result in less waiting time for each packet to be transferred as well as reduce the re-transmission of undelivered packets. We anticipate this proposed method will improve the energy consumption and QoS of each node and thus the WSN. The success of this project will be contributed to the performance improvement and cost-effective sensing device

    Sustainable development of Tasik Kenyir eco-tourism using system dynamic

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    The sustainable development of Tasik Kenyir eco-tourism depends on the availibility of spatially explicit information on the state and trends of ecosystems and their services. Thus, we develop an interactive dynamic model of Tasik Kenyir Eco-Tourism that links ecological and economic systems, and generated the effects of the short and long terms besides to determine the direction of development and conservation in Tasik Kenyir development policies. In this study, Tasik Kenyir eco-tourism coins Macro Management Framework for Tasik Kenyir Tourism Dynamics consist of four different subsystem; Toursim Activity, Development of Tasik Kenyir (infrastucture and tourism activities), Waste Generated and Environment Sustainability (flora and fauna). The Model developed reveals that sustainable development of Tasik Kenyir eco-tourism requires continuous prolonged effort and insight towards creating a balance between social, economic and environmental developments. © Springer Nature Switzerland AG 2019

    Distributed Online Averaged One Dependence Estimator (DOAODE) Algorithm for Multi-class Classification of Network Anomaly Detection System

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    Network monitoring system consists of large data streams, distributed architecture, and multiple computers that are geographically located all over the world caused a difficulty to detect abnormalities in the system. In addition, when handling network traffic, the data in network is fast incoming and requires an online learning where immediately response and predict the pattern of network traffic for classification once there is an event or request occur. Therefore, this paper aims to develop an effective and efficient network anomaly detection system by using distributed online averaged one dependence estimator (DOAODE) classification algorithm for multi-class network data to overcome these issues. The finding of DOAODE algorithm for multi-class classification is high in accuracy with average 83% and fast to train the network traffic recorded less than ten seconds and takes shorter time when the number of nodes increase

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