Research Output
1 - 10 of 46
-
PublicationPhyton-Based Smart Algorithm for 3 × 3 Rubik’s Cube Solver( 2021-01-01)Rubik’s cubes are exciting to be play with, but solving it can be a bit tricky, especially when we are not having the insight of how to solve it. There are many ways to solve it. This research is about creating a Phyton based- program to solve a physical Rubik’s cube. This research uses webcam as sensor, and Raspberry Pi microcontroller to generate solution from images to twist Rubik’s cube using servo actuators. To make it easy to be used, the program is equipped with Graphical User Interface (GUI) and Internet of Things (IoT). Hence, the program run in a smartphone, web- based systems through internet to give information about the performance of the project. The research is intended to create a Rubik’s cube solver which can be used for education purpose and to help people solving Rubik’s cube autonomously using Internet-of-things. The initial prototype is limited to solve 3 × 3 standard Rubik’s cube with dimension 5.7 × 5.7 × 5.7 cm. This project uses Python language to create improvised Kociemba program and GUI. The developed coding is tested on the 3D printed Rubik’s Cube Solver. Based on the test conducted with implementation in the prototype, the robot manage to solve the Rubik’s cube with an average of 21 moves.
-
PublicationFabrication and Mechanical Testing of Blended PVOH/Kenaf Reinforced Starch Composite for Future Packaging Application( 2021-01-01)The mechanical and morphological properties of PVOH/kenaf fibre thin film was studied. The additive used on this research was tapioca starch. Thin films were fabricated using method of solution casting. The thin films composites with different kenaf fibre loadings (0, 5, 10, 15, 20, 30 wt%) were mixed at a temperature of 80 °C with water bath for 1 h and casted on petri dish and let them oven dried at 50 °C for 24 h. The purpose of the current research was to determine the mechanical and morphological properties of PVOH/KF thin film composites with and without addition of starch. The results of this investigation show that the thin film with addition of 5 wt% of tapioca starch has better tensile strength, which is 35.15 MPa, compare to without tapioca starch, which is 29 MPa. The second major finding was that the morphological observed using scanning electron microscope (SEM) reveals improvement of adhesion between kenaf fibre with PVOH matric as addition of tapioca starch.
-
PublicationDevelopment of smart GPS-based nurse following robot( 2021-07-21)Hospital nurses regularly bring their medicines and healthcare items to the patients using trolley. They need to push or pull the cart to the patient's beds, and then, need to bring it back to the original position many times daily. It can be tiresome for nurses because in a day, they need to treat many patients in the hospital. Thus, many devices have been invented to assist the nurses in their daily work routines. This research is focusing on developing a nurse following mobile robot that follows and carries medical items. The mobile robot is integrated with microcontroller, Global Positioning System (GPS) module, digital compass module and Bluetooth module. To use the robot, the nurse firstly needs to connect her smartphone to the robot through Bluetooth connection. Once the connection is established, the robot will start to follow the nurse. The robot can carry a maximum load of 5 kg and uses two direct current geared motors and a caster wheel to move.
-
PublicationInvestigation on effect of gas concentration in distinguishing conventional plastic and bioplastic for plastic recycling( 2022-12)Distinguishing type of plastic was important for the recycling process. In this project, the effect on gas concentration released from composite was studied to distinguish between conventional plastic and bioplastic. This project involved the fabrication of a composite from polypropylene (PP), empty fruit bunches (EFB), and recycle acrylonitrile butadiene rubber (NBRr), with PP used as a conventional plastic and PP/NBRr/EFB used as a bioplastic. Trans-polyctylene (TOR) was used as a compatibilizer to evaluate the effect on the PP/NBRr/EFB. Tensile testing and SEM were conducted to study the mechanical properties and morphological properties on the PP/NBRr/EFB and the PP/NBRr/EFB/TOR composite. The gas sensor (MQ135) was used in this study to detect the presence of NH3 and CO2 released from heating conventional plastic and bioplastic. From the overall result, composite with TOR as compatibilizer has shown better performance than composite without TOR in mechanical, morphological and gas sensor testing. By using MATLAB software, it shows that from gas sensor testing, it can be verified to distinguish between conventional plastic and bioplastics for plastic recycling. The average classification obtained from the Probabilistic Neural Network (PNN) was 99.29 % accurate.
-
PublicationThe use of media filters in treatment of runoff pollution( 2021-02-23)The study will examine the ability of recycled aggregates and sand to classify wastewater in a manner that decreases the level of environmental pollution. The sample was taken from Kg Wang Ulu, Perlis agricultural district, Jejawi, Perlis industrial area and Taman Desa Katong, Perlis residential area. Water quality research has been investigated to find the characteristics of effluent such as suspended solids, BOD, COD and TSS. Three rainfall intensity values, of 5 LPM as low rainfall, 12.5 LPM as mean precipitation intensity, and 22.5 LPM as high-cut rainfall consisted of recycled aggregate and high-absorptive sand as drainage beds, were included in this operating system. Experimental findings indicate that the recycling of aggregates and sand filters has a positive effect on water in industrial and residential areas. It shows that the use of recycled aggregates as a drainage bed can increase the permeability of the region by reducing erosion, preventing flooding and promoting natural infiltration.
-
PublicationEffects of trans-polyoctylene rubber in polypropylene/recycled acrylonitrile butadiene/rice husk powder composites( 2014)Composites of polypropylene/Acylonitrile butadiene rubber/Rice husk powder/ (PP/NBRr/RHP) with and without trans-polyoctylene rubber (TOR) were prepared, and the effects of trans-polyoctylene rubber were investigated. By using rice husk powder of 150300μm, five different compositions of PP/NBRr/RHP composites (i.e.100/0, 80/20, 70/30, 60/40 and 40/60 phr) were prepared in an internal mixer at 180 °C and 50 rpm rotor speed. The results indicate that the incorporation of TOR improved the tensile properties of PP/NBRr/RHPcomposites. Scanning electron microscopy of the fractured surfaces proved that TOR promoted good adhesion between the PP-NBRr matrices and RHP.
-
PublicationPrototype Design for Rubik’s Cube Solver( 2021-01-01)Rubik’s cube is a modern day plastic material puzzle, where the one need to twist and turn to solve the multicolour squares. At the end, the puzzle need to be solved to make all the same colour cubes on the same surfaces. High intelligence is needed to solve it at a shorter time. Therefore, this research is to create a robot solver to solve the Rubik’s cube in short time smartly. Initially, the algorithm will scan the six surfaces of unsolved cube through a webcam and register the colours in the memory. Once it is completed, the solving algorithm will analyse and instruct the servo motors to twist and turn based on the computed solution. It is then pass it to the solving algorithm to identify the solving process and send the moving instruction to the motors by Raspberry Pi. The robot body was constructed using laser cutter. It is to make sure that the measurements are accurate and correct. To solve the cube, four servo motors with high efficiency were used to twist the cube in certain legit with the rules of the game. Another four servo motors are connected to the rack and pinion gears by clamping to hold the Rubik’s cube from falling when it is twisted. An improvised “Kociemba Algorithm”, also called as “The Two-Phase-Algorithm” is used. It reduced the required moves to solve the cube into a maximum of 25 moves and a minimum of 19. Conclusively, the final prototype discussed in this paper is tested with the solving algorithm. The results are presented.
-
PublicationThe behaviours of steel fiber as main reinfocement in high performance slurry infiltrated fiber reinforced concrete( 2013)Concrete is a structure that very weak in tension and need additional material to enhance their structural capacity. In 18thcentury, concrete have been recognized as structure that very weak in tension [. Thus, concrete need additional supporting material that can improve the tension capacity. Because of the steel is very good in tension, the steel bar was embedded in concrete at the tensile stress area to obtain the full capacity of the steel bar as reinforcement.
-
PublicationCharacterization and properties of oil palm empty fruit bunch reinforced polyvinyl alcohol thin films( 2020-01-01)This paper focuses on the mechanical and morphological properties of oil palm empty fruit bunch (OPEFB) fibre reinforced in polyvinyl alcohol (PVOH). Samples were prepared via solution casting method with different loading of OPEFB fibre range from 5 wt% to 30 wt%. To improve the performance of thin films, tapioca starch (TS) was added into the formulation. From the result obtained, the tensile strength of PVOH/OPEFB thin films decreases as fibre loading increases. This might due to the weak interfacial adhesion between OPEFB fibre and PVOH matrix and also the tendency of fibres agglomeration to form the non-homogeneous compound. However, interestingly to observe that tapioca starch addition has increased the tensile strength and Young’s modulus of the thin films. From scanning electron microscopy analysis, the presence of tapioca starch has enhanced the adhesion of PVOH matrix and OPEFB fibre.
-
PublicationMathematical Modelling Development of Sound Transmission Loss for Laminated Glass Using Response Surface Methodology( 2021-01-01)The purpose of this study is to identify parameters that affect the rate of sound transmission loss. Mathematical model of sound transmission loss (STL) is developed for laminated glass and maximize the STL of laminated glass by using response surface methodology (RSM). The main objective of this study is to determine the type of material and number of interlayers for laminated glass on the STL performance. The two-load transfer function method (TFM) coupled with LMS Test Lab Acoustic software to determine the STL. The analysis was made by observing the performance of STL with respect to different materials used, such as glass and Perspex. Besides that, number of interlayers for laminated glass also had been studied for the performance of STL. Next, the RSM will be applied to develop mathematical modelling of STL for laminated glass. Optimization on the variable of laminated glass also has been conducted to obtain optimum variable of laminated glass in order to deliver optimum STL performance.
- 1 (current)
- 2
- 3
- 4
- 5