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Melaka, Malaysia

Yuhazri M.Y.,Hang Tuah University | Jennise T.T.T.,Hang Tuah University | Sihombing H.,Hang Tuah University | Mohamad N.,Hang Tuah University | And 2 more authors.
Applied Mechanics and Materials | Year: 2014

Moisture absorption is a very important factor in polymers and composite materials used for hull manufacture and stability in marine environment. High water absorption of the material will affects the mechanical properties and stability in composite. This research is carried out to study the feasibility of the gravity effects on curing position of the laminated composite structures to enhance the curing space needed. Vertical cured laminate having almost similar properties with common horizontal cured laminate able to save much space in composite industry. Horizontal cured laminates filled up spaces in which SMI lack of. Polyesters and E-glass fibers were used as the raw material in this research. Vacuum bagging technique was used to suck out the excess resin during lay-up to avoid any voids and air inside laminate and cured at different angle position in room temperature for 24 hours. Seven samples of laminated composite were fabricated and cut into specific dimension in accordance to ASTM standard. This paper will discuss about the investigation on the water absorption and thickness swelling of the thermosetting laminated composite by curing the laminate at different angle using vacuum bagging technique. From the testing, SN6 and SN7 shows to have good water resistant in physical properties. © (2014) Trans Tech Publications, Switzerland. Source

Isa A.A.M.,University Technical Malaysia Melaka | Othman M.H.,University Technical Malaysia Melaka | Haron N.Z.,University Technical Malaysia Melaka | Isa M.S.M.,University Technical Malaysia Melaka | And 3 more authors.
Jurnal Teknologi (Sciences and Engineering) | Year: 2014

This paper proposes on the development of a combined location and positioning (L&P) system by combining range measurements and angle measurements for a multiple input multiple output (MIMO) system. The proposed combined technique called as hybrid multiple linear lines of position (HMLLOP) algorithm extends the fundamental idea of using the multiple linear lines of position (MLLOP) scheme when extra information in the form of direction of arrival (DOA) measurements at a minimum of three base stations (BSs) is available. The technique explores the use of multiple lines of position (LOP) instead of circular LOP and determines new lower and upper bounds of DOA according to the measurements obtained from an MLLOP scheme which aims to minimize the DOA error caused by non-line of sight (NLOS) propagation. Simulation results have been provided that show that the proposed combined schemes outperform the range-only algorithm in terms of estimated location accuracy. It has been shown that time of arrival (TOA)-based location can be employed as a baseline location estimation technique, with additional DOA measurements being used to further improve accuracy. © 2014 Penerbit UTM Press. All rights reserved. Source

Jennise T.T.T.,Hang Tuah University | Yuhazri M.Y.,Hang Tuah University | Sihombing H.,Hang Tuah University | Mohamad N.,Hang Tuah University | And 2 more authors.
Applied Mechanics and Materials | Year: 2014

Utilization of high tech engineering materials such as composites has been extensively applied in the industries of civil, mechanical and aerospace due to their favourable characteristic such as high stiffness to weight ratio, improve corrosion and environmental resistance and potential reduction of processing. This research is carried out to study the feasibility of laminated composite after cured at different angle due to gravity effects to enhance the curing space required. Vertically cured laminate having similar or improved properties with common horizontally cured laminate to save much space bringing huge advantage especially to the developing Small and Medium Industries/Entrepreneurs (SMI/E). The horizontal cured laminate composite no doubt will fill up the spaces which SMI/E lacks of. Polyester and E-type fiber glass were the main raw materials used in the research via vacuum bagging technique to drain out the excess resin applied as well as minimize the void or air in the laminated composite. The laminated composite fabricated is cured at different curing angle positions in room temperature for 24 hours under the gravity effects. Five samples were prepared according to the ASTM standard to undergo hardness test. From the testing, SN6 which cured at 75 ° had the closest hardness to the horizontal cured control sample. © (2014) Trans Tech Publications, Switzerland. Source

Ismail M.A.,University of New South Wales | Ismail M.A.,University of Malaya | Rashid F.A.,University of New South Wales | Prasad D.,Politeknik Merlimau
World Academy of Science, Engineering and Technology | Year: 2011

Green home rating has emerged as an important agenda to practice the principles of sustainability. In Malaysia, the establishment of the 'Green Building Index - Residential New Construction' (GBI-RNC) has brought this agenda closer to the stakeholders of the local green building industry. GBI-RNC focuses on the evaluation of the environmental impacts posed by houses rather than assessing the Triple-Bottom-Line (TBL) of Sustainability which also include socio-economic factors. Therefore, as part of a wider study, a survey was conducted to gather the backgrounds of green building stakeholders in Malaysia and their responses to a number of exploratory questions regarding the setting up of a framework to rate green homes against the TBL. This paper reports the findings from Section A and B from this survey and discusses them accordingly with a conclusion that forms part of the basis for a new generation green home rating framework specifically for use in Malaysia. Source

Rashid F.A.,Politeknik Merlimau | Ismail M.A.,University of New South Wales | Ismail M.A.,University of Malaya | Prasad D.,University of New South Wales
World Academy of Science, Engineering and Technology | Year: 2011

In order to encourage the construction of green homes (GH) in Malaysia, a simple and attainable framework for designing and building GHs is needed. This can be achieved by aligning GH principles against Cole's 'Sustainable Building Criteria' (SBC). This set of considerations was used to categorize the GH features of three case studies from Malaysia. Although the categorization of building features is useful at exploring the presence of sustainability inclinations of each house, the overall impact of building features in each of the five SBCs are unknown. Therefore, this paper explored the possibility of quantifying the impact of building features categorized in SBC1 - "Buildings will have to adapt to the new environment and restore damaged ecology while mitigating resource use" based on existing GH assessment tools and methods and other literature. This process as reported in this paper could lead to a new dimension in green home rating and assessment methods. Source

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