Now showing 1 - 10 of 30
  • 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
    Development of IoT-Enabled Smart Water Metering System
    ( 2024-01-01)
    Wen S.D.
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    ; ;
    Hussain A.S.T.
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    Tanveer M.H.
    ;
    Patan R.
    This paper introduces a smart water meter that utilizes the capabilities of the Internet of Things (IoT) to automate the collection of meter readings. The primary goal of this project is to create an IoT-based device for reading water meters, while simultaneously developing a compatible mobile application. Instead of relying on manual meter reading, which requires human effort, this project proposes the use of an IoT-enabled water meter to collect the data automatically. The device employs a camera and Convolutional Neural Network (CNN) for image processing, making it easy to detect the meter reading accurately. The IoT system architecture involves the use of an ESP32 CAM for data collection, a laptop as a gateway, and the Message Queuing Telemetry Transport (MQTT) protocol for data transfer. The collected data is stored in Firebase's real-time database, and the mobile application is designed to monitor and analyze the data. A functional prototype of the device is constructed and tested in a housing area. The collected data is then monitored through the developed mobile application. Lastly, the data is analyzed to assess the suitability of the proposed method, and recommendations for future improvements are provided.
  • 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
    Application of coal bottom ash as raw material for concrete brick in housing construction
    ( 2020-03-25) ; ; ; ;
    Omar S. Dahham
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    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.
      32  1
  • Publication
    The Capabilities and Readiness of Unmanned Aerial System (UAS) implementation in Construction Work Progression
    Nowadays, the implementation of Unmanned Aerial Systems technology is becoming increasingly widespread in the construction industry. Unmanned Aerial Systems (UAS) have evolved over the past decade as both advanced military technology and off-the-shelf consumer devices. Nowadays, the implementation of Unmanned Aerial Systems technology is becoming increasingly widespread in construction industry. The uses of drones are increasingly moving towards successful remote procedures which can take place in a range of in building industry. Unmanned Aerial Systems remote sensing equipment is a way in which current building construction work progress can be analysed and inspected. Therefore, this study would be beneficial as eye opener for building construction practitioner that this remote sensing equipment can replaced the manual paper-based supervision and unsystematic database of current conventional construction work progression process.
      1  5
  • Publication
    The influence of alkali treatment on date seeds powder reinforced LLDPE composites: Flexural properties and impact strength
    ( 2020-03-25)
    Elnaid A.
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    ;
    Dahham O.S.
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    ; ; ;
    Umar M.U.
    In this work, the influences of different concentration of sodium hydroxide (NaOH) (3, 6 and 9 wt.%) on the flexural and impact properties of linear low-density polyethylene / date seeds (LLDPE/DS) composites were examined. The LLDPE / DS ratio was fixed at 90/10 wt.% and the size of DS particles was measured at 125 - 250 micro m. The process used to synthesize the composites id extrusion followed by injuction molding process. Results showed that the presence of NaOH particularly at 6 wt.% concentration has improved the flexural and impact properties of the composite. This is due to bonding of the date seeds particles with the LLDPE matrix that reflected posativelly on the mechanical properties of the composite. However, the using of high NaOH concentration (9 wt.%) has shown an opposite trend, the increasing of surface roughness of the fiber after 9% NaOH treatment has reduced the flexibility of the composite and made it stiffer and more rigid, which in turn made it easy to break during mechanical test.
      3  26
  • Publication
    Object Detection and Instance Segmentation with YOLOV8: Progress and Limitations
    ( 2024-01-01)
    Lee L.J.
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    ; ;
    Hussain A.S.T.
    ;
    Tanveer M.H.
    This research employs object detection and instance segmentation algorithms to distinguish between objects and backgrounds and to interpret the detected objects. The YOLOV8 (You Only Look Once) framework and COCO dataset are utilized for detecting and interpreting the objects. Additionally, the accuracy of detection, segmentation, and interpretation is tested by placing objects at various distances from the camera. The algorithm's performance was evaluated, and the results were documented. In the experiments, a sample of 11 objects was tested, and 8 of them were successfully detected at distances of 45cm, 75cm, 105cm, and 135cm. For instance, segmentation, segmentation maps appeared clean when detecting a single object but faced challenges when multiple objects overlapped.
      14  3
  • Publication
    X-means clustering for wireless sensor networks
    ( 2020-09-01)
    Radwan A.
    ;
    Kamarudin N.
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    Solihin M.I.
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    Leong H.
    ;
    Rizon M.
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    ;
    K-means clustering algorithms of wireless sensor networks are potential solutions that prolong the network lifetime. However, limitations hamper these algorithms, where they depend on a deterministic K-value and random centroids to cluster their networks. But, a bad choice of the K-value and centroid locations leads to unbalanced clusters, thus unbalanced energy consumption. This paper proposes X-means algorithm as a new clustering technique that overcomes K-means limitations; clusters constructed using tentative centroids called parents in an initial phase. After that, parent centroids split into a range of positions called children, and children compete in a recursive process to construct clusters. Results show that X-means outperformed the traditional K-means algorithm and optimized the energy consumption.
      3
  • Publication
    Heritage building design properties: Development of as built drawing by uav application via 3d laser scanner
    Inadequate information that represent the existing figure of the building after transmission of years and the eagerness of the Malaysian’s architect to develop frantically modern development design that gradually neglecting the essence of cultural perseverance of the heritage building has been brawled excessively. Taking a human – factor constraint to conducted the physical survey, the technologies such as computers and digital media have given beneficial value that are time saving and less risky. Hence, the research aim for the development of the as-built drawing for Masjid Alwi, Kangar, Perlis has been completed via UAV application and 3D laser scanner, and results were recorded on the structural and architectural properties of Masjid Alwi that has been analyzed accordingly. Therefore, the needs of having an adequate as-built drawing due to the depletion of the ancient documentation and as a baseline for the designer maintaining the cultural identity in a way to design new development is imperative and possible with the aid of UAV application and 3D scanning.
      1
  • Publication
    Development of Variable Arm to Control the Manoeuvrability of Quadrotor
    ( 2024-01-01)
    Hong L.Y.
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    ; ;
    Tanveer M.H.
    This paper introduces the concept of a variable arm for a quadrotor which is able to perform the manoeuvrability of the quadrotor by changing the arm length’s. The variation in arm’s length affects the bending moment generated by the thrust force, resulting in the tilting and movement of the quadrotor. The primary goal of this project is to develop a quadrotor with an adjustable arm length to control its manoeuvrability effectively, thus minimizing the need for additional thrust force during flight control. The study focuses on designing a quadrotor with the capability to extend or retract its arms. The proposed concept relies on altering the bending moment through the variable arm to control the quadrotor's manoeuvrability. A quadrotor equipped with a variable arm was successfully designed and tested, with its performance evaluated in executing agile maneuvers. The experiment demonstrated that the variable arm induced body rotation in the quadrotor, effectively regulating its manoeuvrability and the study validates the potential of the variable arm approach for controlling quadrotor movement.
      7  20