Zuradzman Mohamad Razlan, Assoc. Prof. Ir. Dr.This page provides access to scholarly publications by UniMAP Faculty members and researchers.http://dspace.unimap.edu.my:80/xmlui/handle/123456789/330762024-03-29T07:45:43Z2024-03-29T07:45:43ZEffect of pineapple leaf (PALF), napier, and hemp fibres as filler on the scratch resistance of epoxy compositesMohd Ridzuan, Mohd JamirMohd Shukry, Abdul MajidAzduwin, KhasriE.H.D. GanZuradzman, Mohamad RazlanS., Syahrullailhttp://dspace.unimap.edu.my:80/xmlui/handle/123456789/686242020-11-05T04:06:05Z2019-01-01T00:00:00ZEffect of pineapple leaf (PALF), napier, and hemp fibres as filler on the scratch resistance of epoxy composites
Mohd Ridzuan, Mohd Jamir; Mohd Shukry, Abdul Majid; Azduwin, Khasri; E.H.D. Gan; Zuradzman, Mohamad Razlan; S., Syahrullail
This article presents the effects of pineapple leaf (PALF), napier, and hemp fibres as filler on the scratch resistance of epoxy composites. In particular, it explores the effect of these natural fillers on the horizontal load, coefficient of friction (COF), penetration depth, fracture toughness, scratch hardness, brittleness index and scratch observation. The mixing method using magnetic stirrer was used to produce the natural fibre-filled epoxy composites with different wt%, namely, 5, 7.5, and 10 wt%. The test was performed using a CSM Revetest Xpress, which consisted of a cone of the half-apex angle of 60° ending with a sphere having a tip radius of 200 μm. The indenter scratch distance and speed were 7 mm and 1.5 mm/min, respectively. The results show that the napier fibre-filled epoxy composites have the highest peak load and COF. It was also noted that the napier fibre-filled epoxy composites have the lowest penetration depth for each wt% of filler. Lastly, the fracture toughness (Kc) for the napier fibre-filled epoxy composites with 10 wt% of filler yielded the highest value of 4.33 MPa.m1/2. It can also be seen that using a scanning electron microscope (SEM), the amount of debris increased with higher of wt% of the natural fibre fillers in the composites. Hence it was demonstrated that the napier fibre-filled epoxy composites have higher scratch resistance compared to the PALF and hemp fibre-filled epoxy composites. Keywords: Surface analysis, Fracture toughness, Scratch resistance, PALF, Napier, Hemp fibres
Link to publisher's homepage at https://www.sciencedirect.com/
2019-01-01T00:00:00ZGas-liquid flow distribution uniformity parameters in upward multi-pass compact evaporatorZuradzman, Mohamad RazlanHazry, DesaShahriman, Abu BakarKhairunizam, WanIshak, IbrahimR. HengAbadalsalam T. HussainHirota, MasafumiMaruyama, NaokiNishimura, AkiraHisyam, Hamdanhttp://dspace.unimap.edu.my:80/xmlui/handle/123456789/635752019-12-03T07:46:25Z2016-01-01T00:00:00ZGas-liquid flow distribution uniformity parameters in upward multi-pass compact evaporator
Zuradzman, Mohamad Razlan; Hazry, Desa; Shahriman, Abu Bakar; Khairunizam, Wan; Ishak, Ibrahim; R. Heng; Abadalsalam T. Hussain; Hirota, Masafumi; Maruyama, Naoki; Nishimura, Akira; Hisyam, Hamdan
The gas-liquid flow distributions in multi-pass upward parallel channels that simulate the evaporator for the automobile air-conditioner system were examined experimentally. In this paper, the attentions are (1) To study the influences of the backpressure condition at the branch outlets and of the flow-inlet condition at the header entrance on the gas-liquid distributions to the branches, (2) To discover the most influenced parameter to the flow distribution uniformity by using design of experiment method. Experiments were conducted in an isothermal air-water flow system. The influence of the backpressure condition on the flow distributions changed depending on the flow-inlet condition. In the stratified-flow inlet, the backpressure condition was highly influential in both the air and water distributions, and the uniform water distribution that was ideal for the evaporators could not be achieved even if air was distributed uniformly to all branches. In the mist-flow inlet, the water distribution was insensitive to the backpressure conditions and its uniformity was improved in comparison with that in the stratified-flow inlet. The flow distribution uniformity for gas phase is influenced mostly by superficial air velocity, and the flow distribution uniformity of liquid phase is mostly influence by 2-way interaction of parameters which are flow pattern and superficial air velocity.
Link to publisher's homepage at https://jurnalteknologi.utm.my
2016-01-01T00:00:00ZPID based controller design for attitude stabilization of Quad-rotorMuhammad Hassan, TanveerHazry, Desa, Assoc. Prof. Dr.Syed Faiz, Ahmed, Dr.Muhammad Kamran, JoyoFaizan, A WarsiZuradzman, Mohamad Razlan, Dr.Wan Khairunizam, Wan Ahmad, Dr.Abadal-Salam, T. Hussainhttp://dspace.unimap.edu.my:80/xmlui/handle/123456789/354892014-06-14T04:01:16Z2014-01-01T00:00:00ZPID based controller design for attitude stabilization of Quad-rotor
Muhammad Hassan, Tanveer; Hazry, Desa, Assoc. Prof. Dr.; Syed Faiz, Ahmed, Dr.; Muhammad Kamran, Joyo; Faizan, A Warsi; Zuradzman, Mohamad Razlan, Dr.; Wan Khairunizam, Wan Ahmad, Dr.; Abadal-Salam, T. Hussain
This article presents a PID based control approach for stabilizing the attitude of quad-rotor UAV during flying. To solve the stability problem of quad-rotor UAV, some suitable and easy feedback control algorithm can be used. In the standard Quad-rotor type UAV systems, controlling of attitude is one of the most critical tasks and appropriate controller for stabilization of attitude is essential and necessary. So, in order to validate the unwanted disturbance rejection operation, a robust PID controller with feedback compensation is derived in this research artical. The results proved the effectiveness of control method for stabilizing attitude of quad-rotor.
Link to publisher's homepage at http://www.aensiweb.com/
2014-01-01T00:00:00ZDevelopment of Graphical User Interface (GUI) for dead reckoning system of a non-holonomic mobile robotMuhammad Hassan, TanveerHazry, Desa, Assoc. Prof. Dr.Syed Faiz, Ahmed, Dr.Muhammad Kamran, JoyoFaizan, A WarsiZuradzman, Mohamad Razlan, Dr.Wan Khairunizam, Wan Ahmad, Dr.Abadal-Salam, T. Hussainhttp://dspace.unimap.edu.my:80/xmlui/handle/123456789/354882014-06-14T23:18:53Z2014-01-01T00:00:00ZDevelopment of Graphical User Interface (GUI) for dead reckoning system of a non-holonomic mobile robot
Muhammad Hassan, Tanveer; Hazry, Desa, Assoc. Prof. Dr.; Syed Faiz, Ahmed, Dr.; Muhammad Kamran, Joyo; Faizan, A Warsi; Zuradzman, Mohamad Razlan, Dr.; Wan Khairunizam, Wan Ahmad, Dr.; Abadal-Salam, T. Hussain
This article presents the creation of GUI for the dead reckoning nonholonomic mobile robot and verifies the completion of designing a user-friendly GUI for controlling and operating, which will help the user to understand the positioning of the robot. The foremost concern is to design the GUI by using Visual Basic software. Moreover, software such as Solid Works and AutoCAD are also used to design 3D model of the robot.
Link to publisher's homepage at http://www.aensiweb.com/
2014-01-01T00:00:00Z