Browsing International Journal of Nanoelectronics and Materials (IJNeaM) by Title
Now showing items 217-236 of 338
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Optical fibre sensor using frequency beating technique
(Universiti Malaysia Perlis (UniMAP), 2020-04)In this paper, a new method to realize the optical fibre sensor using an optical heterodyne technique (OHT) is proposed and numerically demonstrated. In this method, the bandpass filter (BPF) was utilized as a reference ... -
Optical Gain and Confinement in Gaas/Algaas Structure Quantum Well Lasers
(Universiti Malaysia Perlis (UniMAP), 2018-01)In this paper we investigate the optical gain seen by the polarization modes for each of Transverse Electric (TE) and Transverse Magnetic(TM) of GaAs/Al0.32Ga0.68As quantumwell lasers. The factor confinement and modal ... -
Optical investigations of GaN deposited nano films using pulsed laser ablation in ethanol
(Universiti Malaysia Perlis (UniMAP), 2022-04)We provide an optical study on GaN thin film testing created by pulsed laser (ablation) in liquid. This study applied six different energies for ablated GaN nanoparticles in the liquid. According to the XRD test, the ... -
Optical modulator with ZnO bulk single crystals
(Universiti Malaysia Perlis (UniMAP), 2017)An optical modulator was fabricated with semiconductor ZnO by associating a nematic liquid crystal layer with indium–tin oxide. This device revealed the height variation in the phase and refractive index of irradiation ... -
Optical properties of Poly Vinyl Alcohol (PVA)/molasses as biodegradable films for agriculture applications
(Universiti Malaysia Perlis (UniMAP), 2021-10)Biodegradable polymeric films were prepared for agricultural applications. These films based on PVA/ molasses blend mixed with different concentrations (0, 10, 20, 30 and 40 wt. %). These films were characterized by FTIR ... -
Optical, electrical and photovoltaic studies of γ-MnS thin films deposited by spray pyrolysis technique
(Universiti Malaysia Perlis (UniMAP), 2019-07)γ-MnS thin films were prepared on glass substrate by spray pyrolysis method at 280 °C. The optical constants and thickness of the films were extracted using the pattern search optimization technique in combination with a ... -
Optically enhanced N doped ZnO amorphous nanostructures grown by low cost ultrasonicated sol–gel route
(Universiti Malaysia Perlis (UniMAP), 2022-07)N doped ZnO amorphous nanostructures with excellent optical properties were grown by the ultrasonicated sol-gel route. The samples were characterized using structural, morphological and optical studies. XRD patterns confirmed ... -
Optimization of compacting process for Porous Ti-6Al7Nb alloys with Magnesium as a space holder by using Taguchi Method
(Universiti Malaysia Perlis (UniMAP), 2022-10)The optimization of compacting process for porous titanium niobium (Ti-6Al-7Nb) alloys with magnesium as a space holder prepared by powder metallurgy process was studied to analyze the significant porosity required in ... -
Optimization of micromilling parameters using Taguchi Method for the fabrication of PMMA based microchannels
(Universiti Malaysia Perlis (UniMAP), 2020-12)A method is proposed for rapid prototyping of Poly (methyl methacrylate) (PMMA) microfluidic devices utilizing a micromilling machine. The present study is to investigates the influence of micromilling machining parameters ... -
Optimization of the isolation of extracellular vesicles via dielectrophoresis: A preliminary analysis
(Universiti Malaysia Perlis (UniMAP), 2020-12)Extracellular vesicles (EVs); 30 nm to 1 micrometer in size; has gained its attention as their role as biomarkers and communicator from one cell to another. The importance of early detection for diseases is highly integral ... -
Optimization of the Temperature Synthesis of Hydroxyapatite from Indonesian Crab Shells
(Universiti Malaysia Perlis (UniMAP), 2019-01)Hydroxyapatite (HAp) [Ca10(PO4)6(OH)2] is a ceramic class of material widely used for medical applications. The HAp has been synthesized from Indonesian crab shells using a precipitation method at different temperatures ... -
An Optimized Low‐Noise Low‐Power Preamplifier for Cardiac Implants
(Universiti Malaysia Perlis (UniMAP), 2018-04)Among various analog circuits, the preamplifier has a prominent role in the analog front end (AFE) circuit of biomedical implantable microsystems for a reliable acquiring of weak biophysiological signals. The AFE acts ... -
Optimizing electroplating process parameter and Sn-Plating thickness uniformity using modified shielding
(Universiti Malaysia Perlis (UniMAP), 2022-03)Uneven plating thickness distribution across plated surface has become a major challenge in electroplating industry mainly due to the complexity of package design. In most cases, controlling the plating thickness uniformity ... -
Optimizing plasmonic characteristics of Ag-AuNPs/Nanohillocks Si Heterostructures for efficient SERS performance
(Universiti Malaysia Perlis (UniMAP), 2020-04)Tunable bimetallic Ag-Au nanoparticles (Ag-AuNPs) and hot spot regions were created through the reduction of Ag-Au ions onto nanohillock silicon surfaces. A set of as-prepared textured silicon substrates with different ... -
The optimum condition for the synthesis of carbon nanofibers on activated carbon to remove lead from aqueous solution
(Universiti Malaysia Perlis (UniMAP), 2019-04)Optimum process condition for the production of Carbon Nanofibers (CNFs) to remove lead ion (Pb) from aqueous solution is reported here. The CNFs were produced on the catalyst (Ni2+) impregnated palm oil-based cheap ... -
Parameter optimization of fused deposition modeling process for 3D printed prosthetic socket using PCR-TOPSIS method
(Universiti Malaysia Perlis (UniMAP), 2022-03)Prosthetic socket plays the most important role in lower limb prosthesis. The conventional fabrication process of prosthetic socket is labor intensive and time-consuming. The application of additive manufacturing technology ... -
Parametric analysis of sound transmission loss in a rectangular duct attached with resonator silencer
(Universiti Malaysia Perlis (UniMAP), 2022-03)Noise is an existing problem that exist in the environments produced from vibrating sources. In general, the common solutions for noise control are: (1) redesigning the system the system for instance increasing wall ... -
Performance comparison between sapphire and SiC as substrate for GaN 2D photonic crystal
(Universiti Malaysia Perlis (UniMAP), 2020-12)In this work, we present a structure design L3 cavities of 2D photonic crystal on a triangular photonic crystal lattice on Gallium Nitride (GaN) with two different substrate sapphire and SiC. The designed was simulated ... -
A performance comparison of PID and Fuzzy Logic Control methods for trajectory tracking of wheeled mobile robot
(Universiti Malaysia Perlis (UniMAP), 2021-08)Trajectory tracking involves with the geometric path and the timing law of a two-wheeled mobile robot (WMR). Due to its unlimited work area, mobile robots have a broad spectrum of applications. Trajectory tracking feature ... -
Performance enhancement of a photovoltaic cell working in hot environment conditions using Al2O3 Nanofluids: a CFD study
(Universiti Malaysia Perlis (UniMAP), 2021-10)The performance of photovoltaic cells is affected by the cell's temperature resulting from the ambient temperature. The solar cell's efficiency decreases significantly in hot regions due to its high temperature. In this ...