Tan Wei Hong
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Tan Wei Hong
Official Name
Tan, Wei Hong
Alternative Name
Tan, W. H.
Hong, T. W.
Hong, Tan Wei
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Scopus Author ID
56416988300

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  • Publication
    Phyton-Based Smart Algorithm for 3 × 3 Rubik’s Cube Solver
    ( 2021-01-01)
    Allan Melvin Andrew
    ;
    Nik Zainab Nik Azizan
    ;
    Amirah A.S.N.
    ;
    Ragunathan Al Santiagoo
    ;
    Tan Wei Hong
    ;
    Faridah Wahab
    ;
    Rezal S.
    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.
  • Publication
    Thermal, Microstructure, and Hardness Properties of Molybdenum Nanoparticles Added Tin -Bismuth Solder Alloy for Low-Temperature Soldering Application
    ( 2023-01-01)
    Singh A.
    ;
    Durairaj R.
    ;
    Natarajan E.
    ;
    Tan Wei Hong
    ;
    Janasekaran S.
    The melting, microstructure, and hardness properties of the tin (Sn)-bismuth (Bi) solder alloy added with molybdenum (Mo) nanoparticles were investigated. The results showed that the Sn-Bi solder alloy with Mo nanoparticles fully melts at 148.00 °C, and the melting temperature was not drastically disordered by the Mo nanoparticles additions. The Mo has a high-melting point of 2623 °C, hence could not interfere with the solidification process of the molten Sn-Bi solder alloy. The microstructural morphology of the Sn-Bi added with Mo nanoparticles had much finer and compact lamellar structure compared to that of the unreinforced Sn-Bi solder alloy. Together with the dispersed Mo nanoparticles, there were Bi phases breaking out in the microstructure of the Mo-reinforced Sn-Bi solder alloy. Results from the hardness test showed a leap in the hardness value of 0.4 Hv, for the Mo containing Sn-Bi solder alloy. Presence of Mo nanoparticles and finer microstructure are believed to be the factors behind the increase. Reinforcing small quantity of Mo nanoparticles to the Sn-Bi solder alloy shows improvement to the microstructure and hardness as well as keeping the melting temperature below 150 °C.
  • Publication
    The use of media filters in treatment of runoff pollution
    ( 2021-02-23)
    Amirah A.S.N.
    ;
    Ragunathan Al Santiagoo
    ;
    Nik Zainab Nik Azizan
    ;
    Allan Melvin Andrew
    ;
    Faridah Wahab
    ;
    Tan Wei Hong
    ;
    Salwa Mohd Zaini Makhtar
    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.
  • Publication
    Performance Analysis of Dual-Axis Stepper Motor Solar Tracker System
    ( 2022-11-07)
    Teoh C.Y.
    ;
    Hong D.T.T.
    ;
    Ooi L.E.
    ;
    Tan Wei Hong
    ;
    Hamid M.N.A.
    Solar tracking systems are widely used to optimise solar energy absorption however the systems consume more energy and require extra maintenance and cost. The objectives of this paper are to develop a dual-axis solar tracker system and to compare the performance with stationary and single axis tracking solar systems. The dual-axis solar tracking system adopted stepper motor and a linear actuator to achieve both pitch and horizontal moving mechanisms of the photovoltaic module. The energy consumption of this dual axis solar tracking system was 1.38% of the total generated power of the photovoltaic module which was lower than the conventional dual motors dual-axis solar tracking system. The dual-axis solar tracker was programmed accordingly to the shadow effect on the Light Dependent Resistor (LDR) and the microcontroller operated accordingly to the corresponding location of the sun. The system scanned LDRs' value every five minutes to prevent micromovement and minimise energy consumption. The results showed that the energy conversion efficiency of the dual-axis solar tracker system was 20.2% and 50.7% higher than the single axis and stationary solar system.
  • Publication
    Prototype Design for Rubik’s Cube Solver
    ( 2021-01-01)
    Allan Melvin Andrew
    ;
    Faridah Wahab
    ;
    Tan Wei Hong
    ;
    Ragunathan Al Santiagoo
    ;
    Amirah A.S.N.
    ;
    Nik Zainab Nik Azizan
    ;
    Lee F.S.
    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.
  • Publication
    Mathematical Modelling Development of Sound Transmission Loss for Laminated Glass Using Response Surface Methodology
    ( 2021-01-01)
    Tan Wei Hong
    ;
    Faridah Wahab
    ;
    Allan Melvin Andrew
    ;
    Nik Zainab Nik Azizan
    ;
    Ragunathan Al Santiagoo
    ;
    Amirah A.S.N.
    ;
    Lim E.A.
    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.
  • Publication
    In-situ Noise Measurement and Analysis for the Motorcycle Muffler
    ( 2020-01-01)
    Tan Wei Hong
    ;
    Chuah H.G.
    ;
    Cheng Ee Meng
    ;
    Lim Eng Aik
    ;
    Lok, Chip Hao
    Noise from the vehicles is one of the noise pollutions to the environment. The noises emitted by the vehicles have to obey the requirement of regulation of maximum sound pressure level permitted for respective vehicles. In this study, the aim is to reduce the noise emitted from the motorcycle muffler. The noise emitted from the motorcycle muffler is analyzed and measured using a sound level meter. The average sound pressure level of the motorcycle muffler is determined in certain conditions. The sound pressure levels for original installed muffler are recorded as 76.4dB, 79.5dB and 82.3dB under the constant speed of 10km/hr, 20km/hr and 30km/hr respectively by engaging 2nd gear. For the acceleration with the scope of 0 km/hr to 30 km/hr, the difference of sound pressure level between 2nd and 4th gear engaged is 5.4dB. The study is continued by using a modified muffler which contains sound absorptive materials. The absorptive materials chosen are glass wool, cotton and Styrofoam and they are taking turn to be placed into the modified muffler to reduce the sound pressure level. Then the experiment is repeated. By applying 100g absorptive materials in the modified muffler, the reduction of sound pressure level are recorded as 12.6% (glass wool), 7.5% (cotton) and 4.4% (Styrofoam) compared with original installed muffler while 2nd gear engaged. Styrofoam is observed does not perform significantly in absorbing sound or noise in this study. Glass wool demonstrates relatively better sound energy absorption compared with cotton. In general, soft and porous materials are considered good performance in sound absorption. Denser materials are better at soundproofing or sound blocking. Therefore, glass wool with relatively higher density among the investigated absorptive materials in this study has the greatest sound absorption performance.
  • Publication
    Performance of concrete gravity dam with various height of dam based on static pushover analysis
    ( 2021-07-21)
    Nik Zainab Nik Azizan
    ;
    Faridah Wahab
    ;
    Allan Melvin Andrew
    ;
    Ragunathan Al Santiagoo
    ;
    Amirah A.S.N.
    ;
    Tan Wei Hong
    The study was related to the performance of the concrete gravity dam with a various height of dam based on static pushover analysis. Based on the concepts of nonlinear static pushover analysis, a lateral incremental load is applied to the dam body after exerting gravitational and hydrostatic loads. In a concrete gravity dam, inertia loads and hydrodynamic loads are the types of lateral loads generated in earthquakes. The four concrete dams of various height had been analyzed by using ABAQUS. For each model, there were 10 trials analysis of increasing lateral load until the dam reached its limit state. The four finite elements of the concrete gravity dam with various height will be designed. The various height of concrete gravity dam has been specified to 50m, 75m, 100m and 125m. The analysis had been run and the limit state of concrete gravity dam such as cracking will be determined. The magnitude of lateral pushover load will be increased consequently until the dam reached its limit state.
  • Publication
    Acoustical Analysis and Optimization for Micro-Perforated Panel Sound Absorber
    ( 2021-01-01)
    Tan Wei Hong
    ;
    Amirah A.S.N.
    ;
    Ragunathan Al Santiagoo
    ;
    Nik Zainab Nik Azizan
    ;
    Allan Melvin Andrew
    ;
    Faridah Wahab
    ;
    Lim E.A.
    The main objective of this study is to maximize the rate of sound absorption by applying the parameters of micro-perforated plate (MPP) such as the holes diameter, holes spacing, thickness of MPP, and air cavity depth of MPP. In this study, an optimization algorithm – Firefly algorithm is adopted to determine an optimum set of four parameters for MPP. There are four pieces of MPP with different holes of diameter and spacing was used as specimens. The two-microphone impedance tube method was used to measure sound absorption coefficient (SAC) of MPP sound absorber according to ASTM E1050-12 standard. From the experiments, MPP C (hole diameter = 0.5 mm, hole spacing = 7 mm) for both air cavity depth (30 & 60 mm) score the highest SAC which is 1.00 while MPP B (hole diameter = 0.9 mm, hole spacing = 5 mm) obtain the lowest SAC for air cavity of 30 and 60 mm, which are 0.62 and 0.54 respectively. Then, the firefly algorithm is applied to obtain the optimal solution the set of parameters for MPP sound absorber to reduce the noise level. Hence, it is concluded that by increasing the air cavity depth, holes spacing, and decreasing holes diameter size can increase the rate of sound absorption for MPP. The optimal set of parameters obtained from this study for MPP sound absorber for air cavity, hole diameter and holes spacing are 30, 0.71 mm and 0.5 respectively.
  • Publication
    Assessment of a Self-sustaining Drainage Ditch: Water Quality Monitoring and Sampling
    ( 2021-01-01)
    Amirah A.S.N.
    ;
    Tan Wei Hong
    ;
    Faridah Wahab
    ;
    Allan Melvin Andrew
    ;
    Nik Zainab Nik Azizan
    ;
    Ragunathan Al Santiagoo
    ;
    Shahniza M.S.N.
    A research was to determine the water quality in the drainage ditch, and the area under investigation was in Kg Wang Ulu near Perlis. Five parameters of surface water quality physical and chemical characteristics were assessed, and pH, dissolved oxygen (DO), biochemical oxygen demand (BOD), chemical oxygen demand (COD), and ammonia nitrogen (NH3-N) were analyzed. Water sampling was carried out during the time before planting, during planting and after planting in a single season. Results shown at NH3-N at point 1 varying from 1.18 to 4.82 mg/L, pH of 6.18 to 7.38, DO of 3.06 to 9.06 mg/L, BOD of 6.45 to 19.16 mg/L and COD of 18 to 28 mg/L. At point 2, 1 NH3-N ranging from 1.52 to 4.89 mg/L, pH values ranging from 6.13 to 7.38, DOs ranging from 3.19 to 8.63 mg/L, BOD ranging from 7.06 to 14.98 mg/L and COD ranging from 19 to 30 mg/L. Finally, point 3 results for NH3-N ranging from 2.50 to 5.92 mg/L, pH values ranging from 6.19 to 7.41, DO ranging from 3.06 to 9.06 mg/L, BOD ranging from 6.18 to 12.78 mg/L, and COD ranging from 18 to 42 mg/L, respectively.