Now showing 1 - 10 of 21
  • Publication
    Experimental Analysis of Flight Altitude for Enhanced Agricultural Drone Spraying Performance
    Effective rice field management and the proper application of agricultural chemicals are crucial for ensuring agricultural product quality. These chemicals control weeds and protect against insect pests, which can harm crop yields and quality. This research explores the relationship between the altitude at which agricultural drones spray chemicals, spray uniformity, and chemical dispersion. The study assesses drone operations at heights of 1m, 1.5m, and 2m above hollow cone nozzles in 2.8m/s wind conditions. It aims to evaluate droplet uniformity and dispersion on water-sensitive paper placed on paddy plants, analyzed with ImageJ software. Results show that at 1.5m height, there's a significantly higher average droplet density, with 162.7 deposits/cm² in the upper region and 161.8 deposits/cm² in the lower region. Additionally, coverage is notably increased, at 55.21% for the upper region and 51.4% for the lower region. This research highlights the importance of optimal drone altitude for efficient chemical application in rice fields, improving crop protection and yield.
  • Publication
    Application of coal bottom ash as raw material for concrete brick in housing construction
    ( 2020-03-25) ; ; ; ;
    Omar S. Dahham
    ;
    Umar M.U.
    ;
    Jaya H.
    Coal and coal-fired power plants are crucial for supplying global energy demand. However, coal-fired power plants produce significant quantities of bottom ash as by-products. Through these power plants, it produces approximately 18 tons of bottom ash each day. Malaysia has the challenging task of dealing with an increasing amount of waste generated by power plants each year. The high cost of construction and operation of incineration plants coupled with a lack of landfills have given rise to the need for waste minimization and recycling. The use of coal ash in concrete is a new dimension in concrete mix design and if applied on large scale can revolutionize the construction industry, by economizing the construction cost and decreasing the ash content. The used of the coal bottom ash in the concrete brick can reduce the wastage of the coal bottom ash in Malaysia, beside that the cost of the housing can be reduced. In addition, the sustainability in the housing construction in Malaysia can be achieved using the wastage material in the construction.
  • Publication
    Investigating the Engineering Interventions in the Conservation of Malaysia Heritage Structures: A Review on Preserving Historical Edifices Through Advanced Civil Engineering Techniques
    This review delves into the realm of Malaysia's heritage conservation, spotlighting the transformative impact of advanced civil engineering techniques. Through the integration of Fiber-Reinforced Polymers (FRP) and nanotechnology, historical edifices are fortified, seamlessly blending modern engineering with architectural elegance. Non-destructive testing (NDT) methods, including ground-penetrating radar and Finite Element Analysis (FEA),empower conservationists with deep insights into structural intricacies, guiding targeted interventions. In the digital sphere, 3D laser scanning captures intricate details, while Virtual Reality (VR) simulations facilitate immersive exploration and informed decision-making. Beyond preservation, these technologies foster public engagement, ensuring a collective understanding of Malaysia's cultural heritage. This harmonious fusion of tradition and cutting edgeengine ering ensures the enduring legacy of Malaysia's architectural treasures.
  • Publication
    Augmented Reality (AR) as A Promotion Tool in Influencing Housing Purchase Intention
    ( 2023-02-01) ;
    Boying W.
    ;
    Shafiei M.W.M.
    ;
    Razak R.A.
    ;
    Contemporary rapid technological transformation demands the most optimal marketing approach to ensure organisational survival in a highly competitive business environment. Numerous studies were conducted to focus on selecting appropriate promotion tools, such as e-marketing, social media, and extended reality (XR) applications, to be applied in the current marketing methods. Nonetheless, the technological advancement availability was not thoroughly harnessed by the property sector, which lagged in adopting the innovative marketing approach to promote relevant products. Furthermore, minimal research was performed to investigate the effects of augmented reality (AR) applications in the property sector to encourage consumer purchases. The current study aims to determine the relationship between AR applications and potential house buyers’ purchase intention. Respondents were recruited based on the stipulated inclusion criteria, namely age and monthly income. A total of 130 survey booklets with housing design stimuli in the AR applications were distributed for self-completion. Resultantly, 100 completed booklets were returned. The findings revealed that AR applications possessed a significant moderate correlation with potential house buyers’ purchase intention. The results contributed additional insights into the existing marketing and consumer behaviour literature and provided several implications on the AR application potential as a property developers’ promotion tool.
  • Publication
    Building Information System (BIM) as Analyzing Tool Measuring Railway Project Progression
    ( 2023-10-04) ; ; ;
    Amin R.M.
    ;
    Aizat Afiq A.G.M.
    The diversities of contractual terms in construction projects leads to a diversified contractual interpretation in one project. In the long term, the contractual discrepancies would resulted the project suffered from the unwavering disputes. Given the circumstances of site valuation, which refers to the evaluation on the quantity of the building feature was hardly to be quantified in the exact amount based on contractor’s work done. Often, the site evaluation dissatisfactions occurred when the quantity elements in the railway construction has been over claimed by the contractor due to accuracy onsite inspection. The mega structure construction projects have the complicated site inspection and real time measuring tabulation. As fatality increase on site, due to risking human life on the field. The safety culture in mega structure construction has been considered taken lightly. Recently, the advance technology has offered new whole idea in implementing site measurement without risking man, which is using the application of technology that enable Building Information Modelling (BIM) as analyzing tool to process as built drawing. Thus, this research aims to identify the effectiveness utilization of Building Information Modelling (BIM) in measuring real time in railway construction industry.
  • Publication
    Virtual Technology (VR) Attractiveness Attributes in Influencing House Buyers’ Intention to Purchase
    ( 2023-01-01) ; ;
    Woon J.K.Y.
    ;
    Boying W.
    ;
    Shafiei M.W.M.
    ;
    Ismail R.
    ;
    Razak R.A.
    This study aims to investigate the response from selected potential buyers on the marketing communication channel by using the application of virtual reality (VR) in new housing schemes. The objective of this study is to test the hypothesis relating to the channel attributes and potential buyers' purchase intentions through a within-subject design with 100 prospective house buyers. Data were analysed using correlation analysis in IBM SPSS software. It was found that the channel attributes are related to the house purchase intention as indicated by correlation values of 0.793, which indicates strong correlations. As the study uses a quantitative survey method, the data obtained may not be as precise as data obtained using a qualitative research method. Respondents can only select a few options, making it harder for them to express their true opinions. As a contribution to the housing industry, this study emphasizes the importance of VR house models in marketing communication by providing useful empirical results and recommendations based on the research results. The study integrates the current knowledge derived from the research conceptual framework to develop a smart real estate marketing strategy using VR.
  • Publication
    The Contractors' Perception on the Development of Green Building Projects in Penang
    A strategy to lessen the substantial effects of the building development on the environment, society, and economy is green construction. However, despite the positive effects of green buildings on society, numerous market hurdles prevent the growth of green buildings, particularly in Malaysia. This happens because of the lack of awareness regarding the development of green buildings. Therefore, this study aims to explore the contractor perception of the development of green building projects in Penang. A set of questionnaire survey was distributed among eighty-three (83) contractors representing construction organizations in Penang. The analysis showed that the contractors mostly agreed with the benefits of green building, indicating that the respondents are aware of green building. The results shows that financial factor with mean value of 4.66 is the main factor hampering the development of green buildings, followed by law and regulation factor (x ., = 4.60) and quality factor (x ., = 4.54). Besides, most of the respondents also agreed that improving the professional knowledge among contractors (x ., = 4.70) will encourage the development of green buildings. Immediate action should be taken on the strategy either from their sides or from other authorities. Overall, this research provides insight into the perception of the development of green building projects among contractors, which can increase awareness on green building and contributing to a better environment.
  • Publication
    Complexity factors in influencing the relationship between critical success factors and performance of building refurbishment projects
    Building is an important sector of today’s human life, where it meets the basic needs of modern humans for shelter and as a place for social activity and also to protect from the environmental threat. The importance of this sector is growing in line with the increasing number of population in need of new building development. Unfortunately, the high demand for new building development has become increasingly difficult due to the limited of vacant land available for development as a building development project. Consequently, refurbishment of existing buildings is one way to overcome this issue. However, recent studies have found that the success of the building refurbishment project is still not satisfactory. Previous studies have been conducted to determine the Critical Success Factors of building refurbishment projects, but they do not take into account important aspects of current development namely sustainability, technology and policy as well as Complexity Factors that are synonymous with building refurbishment projects compared to new building projects. Therefore, this study was conducted with the aim of establishing a multi-dimensional model of a building refurbishment project. To achieve this, Critical Success Factors are identified taking into account the sustainability, technology and policy aspects as well as Complexity Factors in influencing the building refurbishment project performance success. In this regard, the study was conducted through a quantitative method using the questionnaire form as a research medium to obtain feedback from the construction organization on the Critical Success Factors and the successful performance of the building refurbishment project. The questionnaire developed was distributed by employing self-administered method among managers to represent construction organizations operating in Kuala Lumpur and Selangor. As a result, 204 of the 240 questionnaires were fully completed. The analysis showed that all of the Critical Success Factors were categorized as critical to the success of the building refurbishment project and even had a strong relationship with the success of the building refurbishment project. The study also found that Complex Factors not only directly influence the success of the building refurbishment project but also have a significant impact on the relationship between the four Critical Success Factors and the success of the building refurbishment project namely project management, environment, economic and policy. Overall, this study met the goals and objectives of the study. Finally, this study outlines strategies that can be implemented by construction organizations that carry out building refurbishment projects not only to achieve better project success but also to impact the construction industry on leading a competitive industry and creating a better human environment
  • Publication
    The Potential and Readiness of Unmanned Aerial System (UAS) Implementation in the Development of Construction Work
    Unmanned aerial system technology is being used more and more frequently in the construction sector today. Over the past ten years, unmanned aerial systems (UAS) have developed into cutting-edge military technology and readily available consumer goods. Unmanned aerial system technology is being used more and more frequently in the construction business today. Drone applications are shifting more and more toward productive remote procedures that can be carried out in a variety of building industry settings. Remote sensing tools for Unmanned Aerial Systems can be used to examine and assess the status of ongoing building construction projects. This research will let building construction professionals see how remote sensing technology may replace human paper-based supervision and an unorganized database for the existing traditional construction job progression method.
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  • Publication
    The sustainability of recycled concrete as green material solution
    ( 2020-03-25) ; ; ; ;
    Dahham O.S.
    ;
    Umar M.U.
    ;
    Johari I.
    Nowadays, there are lot of concrete waste were produced from demolition, destruction and others. The usage of concrete is not environmentally friendly due to depletion of reserve natural resources, high energy consumption and disposal issues. Construction debris give a large fraction of solid waste disposal problem, and constitutes the large component. By recycling concrete waste for brick production as replacement the other materials, it can reduce the usage of natural resources and disposal problem that have been occur. The aim of this study to determine the sustainability of the recycled concrete by producing a brick using recycled coarse concrete aggregate at nominal size 10mm. An experiment done by comparing the result of the control specimen using 100% natural sand with specimen that have replaced the sand with recycled concrete aggregate for 0%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, and 100%. The result showed the optimum recycled concrete to produce a brick is at 90% replacement of RCCA where the compressive strength and flexural was achieved 9.7MPA and 3.53MPA respectively with 16133.33 kg/m3 of density. The water absorption of green brick is 9.23% and the cost of brick have been reduced from Rm0.26 to 0.20.
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