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1 – 6 of 6Umi Hanim Mohd Ibrahim, Fathinirna Mohd Arshad, Mazlan Zulkifly and Janet Woo Tai Kwan
The purpose of this paper is to discuss the progress of iRadio OUM over the years, the evolution of technology used and its overall significance to OUM’s continual growth and…
Abstract
Purpose
The purpose of this paper is to discuss the progress of iRadio OUM over the years, the evolution of technology used and its overall significance to OUM’s continual growth and development.
Design/methodology/approach
Reports the results from web analytic data from previous years in terms of listening and downloading habits and trends. Reviews of how other institutions and/or organisations use podcasting or audio learning material in the teaching and learning process are also included.
Findings
Outlines the progress of iRadio OUM through the years in terms of content development, listening and downloading trends as well as research and development carried out. This paper summarises the changes in how segments are structured, produced and delivered. It also outlines the evolution of the technology used, mainly in terms of how content is delivered to the audience.
Research limitations/implications
The scope of the paper is such that it only highlights the experiences of iRadio OUM alone.
Practical implications
Offers practical advice in terms of the planning, development and implementation of an educational internet radio for higher learning institutions.
Originality/value
This paper is written by key team members of iRadio OUM itself and highlights the experiences and ultimately the best practices discovered by actual web-broadcast practitioners and audio learning materials instructional designers.
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Keywords
Muhamad Sharul Nizam Awang, Nurin Wahidah Mohd Zulkifli, Muhammad Mujtaba Abbas, Muhammad Syahir Amzar Zulkifli, Md Abul Kalam, Mohd Nur Ashraf Mohd Yusoff, Muhammad Hazwan Ahmad and Wan Mohd Ashri Wan Daud
The purpose of this paper was to investigate the lubricity of palm biodiesel (PB)–diesel fuel with plastic pyrolysis oil (PPO) and waste cooking biodiesel (WCB).
Abstract
Purpose
The purpose of this paper was to investigate the lubricity of palm biodiesel (PB)–diesel fuel with plastic pyrolysis oil (PPO) and waste cooking biodiesel (WCB).
Design/methodology/approach
Three quaternary fuels were prepared by mechanical stirring. B10 (10% PB in diesel) fuel was blended with 5%, 10% and 15% of both PPO and WCB. The results were compared to B30 (30% PB in diesel) and B10. The lubricity of fuel samples was determined using high-frequency reciprocating rig in accordance with ASTM D6079. The tribological behavior of all fuels was assessed by using scanning electron microscopy on worn steel plates to determine wear scar diameter (WSD) and surface morphology. The reported WSD is the average of the major and minor axis of the wear scar.
Findings
The addition of PPO and WCB to B10 had improved its lubricity while lowering wear and friction coefficients. Among the quaternary fuels, B40 showed the greatest reduction in coefficient of friction and WSD, with 7.63% and 44.5%, respectively, when compared to B10. When compared to B30a, the quaternary fuel mixes (B40, B30b and B20) exhibited significant reduction in WSD by 49.66%, 42.84% and 40.24%, respectively. Among the quaternary fuels, B40 exhibited the best overall lubricating performance, which was supported by surface morphology analysis. The evaluation of B40 indicated a reduced adhesive wear and tribo-oxidation, as well as a smoother metal surface, as compared to B20 and B30b.
Originality/value
Incorporation of PPO and WCB in PB–diesel blend as a quaternary fuel blend in diesel engines has not been reported. Only a few researchers looked into the impact of PPO and WCB on the lubricity of the fuel.
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Umi Kalsum Zolkafli, Norhanim Zakaria, Aina Mohammad Mazlan and Azlan Shah Ali
The purpose of this paper is to establish the impacts of good maintenance work for heritage buildings in Malaysia. This purpose is achieved through identifying factors that lead…
Abstract
Purpose
The purpose of this paper is to establish the impacts of good maintenance work for heritage buildings in Malaysia. This purpose is achieved through identifying factors that lead to the lack of maintenance of heritage buildings, establishing strategies to overcome the lack of maintenance of heritage buildings and analyzing the impact of good maintenance work on heritage buildings in Malaysia.
Design/methodology/approach
A quantitative method was employed for this study to identify the variables that most influence the maintenance of heritage buildings in Malaysia. The respondents were the owners of the heritage buildings in Peninsular Malaysia. There were 65 owners of heritage buildings identified from the official website of the Department of National Heritage, Ministry of Tourism and Culture, Malaysia. Simple random sampling was used to obtain the sample size of the targeted respondent. A total of 56 questionnaire surveys were distributed to the owners of heritage buildings. In total, 37 respondents returned the completed questionnaires, resulting in a response rate of 66 percent. The data were analyzed by Descriptive Statistics using Statistical Package for the Social Science software version 20.
Findings
Results show that the factors that lead to the lack of maintenance of heritage buildings are limited finance, the absence of maintenance guideline and ill-defined maintenance policy. The strategies to overcome the problem include providing a financial budget by the respective authorities, establishing a standard maintenance guideline and revising the existing policy.
Research limitations/implications
The paper is limited to the identification of factors that lead to a lack of maintenance and strategies to overcome the problem for the heritage buildings in Malaysia. The respondents are the owners of heritage buildings in Malaysia. The focus is given to them due to the fact that it will help them in understanding the importance of managing and operating for their buildings.
Practical implications
The results offer value-added information to building managers who are responsible for maintaining heritage buildings. Findings show that good maintenance work on heritage buildings can enhance the value and safety of the building as well as preventing heritage buildings from deteriorating.
Social implications
The quality of maintenance could be enhanced by focusing on the important variables that affect the quality of maintenance works of heritage buildings.
Originality/value
Limited studies had been carried out in the context of the maintenance of heritage buildings, especially in Malaysia.
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Jihad Mohammad and Farzana Quoquab
The purpose of this paper is to highlight the underlying values of Islamic work ethic (IWE) that distinguish it from other ethical perspectives such as Protestant work ethic…
Abstract
Purpose
The purpose of this paper is to highlight the underlying values of Islamic work ethic (IWE) that distinguish it from other ethical perspectives such as Protestant work ethic (PWE), Hindu work ethic (HWE) and/or Buddhist work ethic (BWE).
Design/methodology/approach
The present study utilized the critical review approach to answer the research questions. In this regard, guidance was sought from the Holy Quran and Sunnah to understand the Islamic ordainments pertaining to IWE. Moreover, articles related to different ethical systems are exhaustively reviewed.
Findings
Based on the literature review pertaining to the different ethical systems, this study highlights five specific distinguishing values and behavior: emphasis on halal and haram, emphasis on the purity of intention, seeking of employment, the nature of employer–employee relationship and dealing with sexual harassment.
Practical implications
Multinational and local organizations are strongly recommended to comprehend and grasp different ethical background of their employees to meet and satisfy their physical and spiritual needs. As a result, it may enhance and boost the effectiveness, efficiency and productivity of the organizations.
Originality/value
This study has its merits in term of identifying the distinguishing aspects of IWE from other ethical systems. There is a paucity of research that examines these differentiating values. Therefore, the research question “what are the underlying factors that differentiate IWE from PWE, HWE and/or BWE?” is still unanswered. The present research is an attempt to answer this question. The findings of this study will enable the researchers to come out with a comprehensive and complete definition of IWE construct. Moreover, it will be useful to refine the existing IWE scale by emphasizing the distinguishing aspects of the construct.
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Toan Van Nguyen, Minh Hoang Do and Jaewon Jo
Collision avoidance is considered as a crucial issue in mobile robotic navigation to guarantee the safety of robots as well as working surroundings, especially for humans…
Abstract
Purpose
Collision avoidance is considered as a crucial issue in mobile robotic navigation to guarantee the safety of robots as well as working surroundings, especially for humans. Therefore, the position and velocity of obstacles appearing in the working space of the self-driving mobile robot should be observed to help the robot predict the collision and choose traversable directions. This paper aims to propose a new approach for obstacle tracking, dubbed MoDeT.
Design/methodology/approach
First, all long lines, such as walls, are extracted from the 2D-laser scan and considered as static obstacles (or mapped obstacles). Second, a density-based procedure is implemented to cluster nonwall obstacles. These clusters are then geometrically fitted as ellipses. Finally, the combination of Kalman filter and global nearest-neighbor (GNN) method is used to track obstacles’ position and velocity.
Findings
The proposed method (MoDeT) is experimentally verified by using an autonomous mobile robot (AMR) named AMR SR300. The MoDeT is found to provide better performance in comparison with previous methods for self-driving mobile robots.
Research limitations/implications
The robot can only see a part of the object, depending on the light detection and ranging scan view. As a consequence, geometrical features of the obstacle are sometimes changed, especially when the robot is moving fast.
Practical implications
This proposed method is to serve the navigation and path planning for the AMR.
Originality/value
(a) Proposing an extended weighted line extractor, (b) proposing a density-based obstacle detection and (c) implementing a combination of methods [in (a) and (b) constant acceleration Kalman and GNN] to obtain obstacles’ properties.
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