International Journal of Nanoelectronics and Materials (IJNeaM)
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IJNeaM aims to publish original work of importance in the fields of nanoscience and engineering. Topics covered including Theoretical, Simulation, Synthesis, Design and Fabrication of Nanomaterials and Nanodevices; Metals, Insulators, and Semiconductors with a focus on Electronic, Structural, Magnetic, Optical, Thermal, Transport, Mechanical and other properties for the specialists in Engineering, Chemistry, Physics and Materials Science. IJNeaM accepts submission in the form of Reviews, Research Articles, Short Communications, and selected conference papers.
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PublicationSimulation, prototyping and testing of a new gripper design to automate double chlorination of rubber gloves(Unversiti Maaysia Orrkis (UniMAP), 2021-08)Chlorination improves rubber gloves donnability. Production of single-chlorinated gloves is fully automated. Double-chlorinated gloves are needed for medical applications. These gloves are chlorinated on both internal and external surfaces. Double-chlorinated gloves are produced with second chlorination. Gloves after the earlier chlorination were manually immersed into another chlorine tank. This manual process endangers the workers and is time-consuming. A gripper was designed to integrate double chlorination to be fully online. The gripper grasps the glove after first chlorination to proceed to second chlorine tank. The gripper has a solid stainless steel body and flexible rubber seal. It is applicable to different glove sizes, chlorine resistant, leakage proof, and heat resistant. Engineering analysis was conducted through simulation and experimental testing. Simulation results showed the solid body does not yield under load. Simulation results also showed the gripper does not experience fatigue damage after multiple working cycles. A prototype was built for experimental testing. Experimental results proved that gripper is heat resistant, grasps all glove sizes, and no seepage indication under water for all glove samples. It was concluded that the gripper justifies for a full trial production run. The project contributes to improved worker safety and productivity, leading to lower production cost.
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PublicationPrediction of basic and circular vibration isolator in high frequencies using Malaysian natural rubber for highway C2L machine(Universiti Malaysia Perlis (UniMAP), 2021-08)This paper represents the basic and circular vibration isolator in High Frequencies using Malaysian natural rubber. Rubber material is chosen because it has very high damping to ensure the sufficient dissipation of vibration energy from the seismic wave. They are two methods involve in this paper, which are lumped parameter and wave propagation techniques. The lumped parameter system is developed to represent the baseline model of laminated rubber-metal spring. Wave propagation model is developed using nondispersive rod. The mathematical modeling of laminated rubber-metal spring has been developed based on the internal resonance, lumped parameter and finite rod model, respectively. For a conclusion, the mathematical modeling of a prediction of basic and circular vibration isolator can be as a tool to predict the new trial-error method for developing new compounding of the vibration isolator in future, respectively.
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PublicationPhosphate adsorption from synthetic aqueous solutions by waste mussel shell- kinetics and isotherms studies(Universiti Malaysia Perlis (UniMAP), 2021-08)The amount of phosphorus released to the wastewater from industry is alarming. One of the phosphorus effects to the environment is eutrophication that will cause algal blooms. Algal blooms will cover the water surface and cause the aquatic plants to not getting enough sun. Insufficient sunlight caused the plants to die thus limiting the oxygen supply to other aquatic life because photosynthesis cannot occur. This research focuses on reducing the amount of phosphorus in a synthetic aqueous solution by using waste mussel shell as absorbent and evaluate the data experiment using kinetic and isotherm models. A batch study was carried out using different adsorbent mass of waste mussel shell and different concentrations of synthetic solution. The absorption efficiency increased with the increasing mass of waste mussel shell but reached constant when the waste mussel shell reached the adsorption limit as equilibrium state. The adsorption was successfully achieved following the pseudo-second order, giving the R2 as 0.9991. Isotherms model analysis showed that the Freundlich isotherms model was insufficient to explain the adsorption of phosphate onto waste mussel shell compared to Langmuir isotherm model (R2=0.8505). The study advanced the understanding of the kinetic adsorption and isotherm study of waste mussel shell and proved that the waste mussel shell has the potential to reduce the amount of phosphorus released into the wastewater. The contribution of this study is alternative adsorbent from waste mussel shell to treat the wastewater in a prospective wastewater treatment facility setting.
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PublicationMicro-Influence of vacuum block positions on machinability of acrylic using hybrid vacuum clamping system(Universiti Malaysia Perlis (UniMAP), 2021-08)The double-sided vacuum clamper is used in this project to study the engraving and end mill machining output. This paper proposes a mechanical repair solution for clamping which does not leave any trace on the clamped surface and can accommodate tiny workpiece thicknesses. Mass production must rapidly and efficiently locate the workpiece for specific operations. Using vacuum clamp, which can often clamp small, thin parts, to attach and release the workpiece. The hybrid vacuum system capable to support the capacity of machining with two conditions: continuous air pressure and remained air pressure from the compressor. The design of the dual side vacuum block is fully designed with the software SolidWorks, which is analyzed the mechanical properties by using the Static Analysis Simulation. The findings show that the solid vacuum block Delrin led to improved static analysis results. CNC router machine used in the experiments, with a 3 mm diameter to engrave and end milling process to acrylic workpiece. After the experiment, an evaluation has been made on the extent of precision and surface roughness. The most ideal position of the vacuum clamping is side by side with distance due to the nearer clamping force.
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PublicationMathematical modelling of passive discrete lumped parameter system using standard malaysian rubber constant viscosity(Universiti Malaysia Perlis (UniMAP), 2021-08)This paper represents the basic and circular vibration isolator in High Frequencies using Malaysian natural rubber. Rubber material is chosen because it has very high damping to ensure the sufficient dissipation of vibration energy from the seismic wave. They are two methods involve in this paper, which are lumped parameter and wave propagation techniques. The lumped parameter system is developed to represent the baseline model of laminated rubber-metal spring. Wave propagation model is developed using nondispersive rod. The mathematical modeling of laminated rubber-metal spring has been developed based on the internal resonance, lumped parameter and finite rod model, respectively. For a conclusion, the mathematical modeling of a prediction of basic and circular vibration isolator can be as a tool to predict the new trial-error method for developing new compounding of the vibration isolator in future, respectively.