Browsing by Author "Uda, Hashim"
Now showing items 21-40 of 54
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Effect of kenaf fibre Mat layers and Zinc Oxide Nanoparticle Concentration on the Mechanical and Thermal Properties of ZnONPs/kenaf/polyester Composites
Mohammed, Mohammed; Rozyanty, Rahman; Aeshah, M. Mohammed; Azlin Fazlina, Osman; Tijjani, Adam; Omar S., Dahham; Uda, Hashim; Nik Noriman, Zulkepli; Bashir O., Betar (IOP Publishing, 2018)Zinc oxide nanoparticle kenaf polyester composite (ZnONPs/kenaf/polyester) containing 1, 2, 3 and 4 layers of kenaf fibre treated with 40nm 2% (w/w) and 5 % (w/w ) of ZnONPs were prepared and characterised to evaluate ... -
The effect of temperature, pH and exposure time to Electroless Nickel Deposition for Under Bump Metallurgy (UBM)
Mohd Khairuddin, Md Arshad; Ibrahim, Ahmad; Azman, Jalar; Uda, Hashim (Universiti Putra Malaysia (UPM), 2005-12-06)The low cost deposition of under bump metallurgy (UBM) method presented in this paper is based on electroless nickel immersion gold (ENIG) bumping process. The study is focuses on the effect of temperature, pH and exposure ... -
Effects of DC line voltage environment on different types of compact fluorescent lamps operation
Abdul Rahim, Abdul Razak; Uda, Hashim; Norlia, Mohamad Ibrahim; Syafruddin, Hasan; Ahmad Shukri, Fazil Rahman (Institute of Electrical and Electronics Engineers (IEEE), 2013)Compact fluorescent lamps are tested under DC operating conditions. Five random samples are evaluated in term of their starting and operation response compared to normal AC environment. Experiment result shows that DC line ... -
The effects of multiple zincation process on Aluminum Bond Pad surface for Electroless Nickel Immersion Gold deposition
Mohd Khairuddin, Md Arshad; Ibrahim, Ahmad; Azman, Jalar; Ghazali, Omar; Uda, Hashim (American Society of Mechanical Engineers (ASME), 2006-09)This paper reports the effects of a multiple zincation processon the Al bond pad surface prior to electroless nickel immersion gold deposition. The study of multiple zincation comprises the surface topogtaphy and morphology ... -
An estimation of the energy and exergy efficiencies for the energy resources consumption in the transportation sector in Malaysia
Saidur, R.; Munavvar, Abdul Sattar; Masjuki, H. H.; Ahmed, S.; Uda, Hashim (Elsevier Ltd., 2007-08)The purpose of this work is to apply the useful energy and exergy analysis models for different modes of transport in Malaysia and to compare the result with a few countries. In this paper, energy and exergy efficiencies ... -
An evaluation of stand-alone electrical power PV systems at Orang Asli villages in Cameron Highland, Malaysia
Abdul Rahim, Abdul Razak; Ahmad Shukri, Fazil Rahman; Norlia, Mohamad Ibrahim; Yazhar, Yatim; Zamri, Hasan; Shahrun, Nizam; Uda, Hashim (Institute of Electrical and Electronics Engineers (IEEE), 2012)This paper present a case study investigation on the functionality status of the rural photovoltaic electrical power photovoltaic (PV) systems installed at several Orang Asli villages or settlement around Cameron Highland, ... -
Fabrication and characterization of Si quantum dots and SiO2 tunnel barriers grown by a controlled oxidation process
Sutikno, Madnasri; Uda, Hashim; Zul Azhar, Zahid Jamal (IOP Publishing Ltd, 2008-01-29)The control of the growth of silicon dioxide (SiO2) and the formation of quantum dots (QDs) play an important role in the fabrication of single-electron transistors (SETs). In this work, SET structures were fabricated using ... -
Fabrication of Amorphous silicon Microgap Structure for Energy Saving Devices
Thikra, S. Dhahi; Uda, Hashim; Md. Eaqub, Ali; Nazwa, Taib (Universiti Kebangsaan Malaysia, 2011-11-18)We report here the fabrication of microgaps electrodes on amorphous silicon using low cost techniques such as vacuum deposition and conventional lithography. Amorphous silicon is a low cost material and has desirable ... -
From nanostructure to nano biosensor: Institute of Nano Electronic Engineering (INEE), UniMAP experience
Uda, Hashim; K L, Foo (Universitas Negeri Semarang, 2011-11)Nanostructure is defined as something that has a physical dimension smaller than 100 nanometers, ranging from clusters and/or to dimensional layers of atoms. There are three most important nanostructures that are extensively ... -
Functionalization of Si Nanowire Surfaces to Create Interactive Mechanism for Heavy Metals Detection Application
Nuri A.KH., Ehfaed; Tijjani, Adam; Mohammed, Mohammed; Omar S., Dahham; Uda, Hashim; Nik Noriman, Zulkepli; Almahdi R., Rabia (IOP Publishing, 2018)Silicon (Si) nanostructure was prepared using a cheap and in-house technique. The device was fabricated via dry oxide etching approach with a controlled oxygen flow rate in an oxidation furnace, a network of uniform Si ... -
The Impacts of Platinum Diffusion to the Reverse Recovery Lifetime of a High Power Diode Devices
C.M., Cheh; Mohd Khairuddin, Md Arshad; Ruslinda, Abdul Rahim; C., Ibau; Voon, Chun Hong; Ramzan, Mat Ayub; Uda, Hashim (EDP Sciences, 2016)The reverse recovery lifetime of a diode is one the key parameter in power electronics market. To make a diode with fast switching speed, diodes are often doped with impurities such as gold and platinum to improve its ... -
Mask design and fabrication of LiSFET for light sensor application
Uda, Hashim; Kasim, Abdul Rahman; Amir Razif Arief, Jamil Abdullah (Institute of Electrical and Electronics Engineering (IEEE), 2008-12-01)The usage of MOSFET is not limited as amplifier and switch only but it has great potential to become the sensors when sensing mediums which integrated on to MOSFET. This research is intended to study the combination of ... -
Mercaptopropyltriethoxysilane (MPTES) Concentration Effect on Selectivity and Electrical Response of Nanostructure
Ammar B., Mosbah; Tijjani, Adam; Mohammed, Mohammed; Omar S., Dahham; Uda, Hashim; Nik Noriman, Zulkepli (IOP Publishing, 2018)The surface modification by on Mercaptopropyltriethoxysilane (MPTES) done to enhance electrical behavior of nano-IDE -based sensor, silicon based active area was coated with MPTES. The electrical properties of modified ... -
Microwave irradiation assisted synthesis of silicon carbide nanotubes
Tony, V.; Voon, C.H.; Lee, Chang Chuan, Dr; Lim, B.Y.; Rahman, W.; Uda, Hashim; Ruslinda, Abdul Rahim; Mohd Khairuddin, Md Arshad; Foo, Kai Loong; Gopinath, S.C.B. ,; Ayoib, A. ,; Thivina, V. ,; Ba Hashwan, S.S. (Trans Tech Publications, Switzerland., 2016)Conventional methods for the synthesis of silicon carbide were well studied and these methods included carbothermal reduction, mechanical milling, sol-gel process and others. However, conventional methods have limitations ... -
Modelling Simulation of Organic and Inorganic Interaction Based on First Principle Calculation
Tijjani, Adam; Aeshah M., Mohammed; Mohammed, Mohammed; Omar S., Dahham; Uda, Hashim; Nik Noriman, Zulkepli (IOP Publishing, 2018)The student presented theoretically interaction of organic and inorganic based on the electrostatic interaction created by the ssDNA interaction with sensor active surface, the ssDNA strand was immobilised on silicon-based ... -
Nano patterning of cone dots and nano constrictions of negative e-beam resist for single electron transistor fabrication
Sutikno, Madnasri; Uda, Hashim; Zul Azhar, Zahid Jamal (Springer New York, 2007-12)We present an optimization of nano dot of negative tone e-beam resist which is a very important step in single electron transistor fabrication process. The optimum design of dot and nano constriction plays a significant ... -
Nano-silver microcavity enhanced UV GaN light emitter
Naser Mahmoud, Ahmed; Zaliman, Sauli; Uda, Hashim; Zul Azhar, Zahid Jamal (Inderscience Enterprises Limited, 2009)We report results of measurements that help to clarify the role of silver in the reflection of UV emission light from GaN. A GaN as an active layer was sandwiched between two silver metal reflectors. GaN layer on sapphire ... -
Nanogap biosensor development for DNA immobilization and hybridization detection
Th. S., Dhahi; Uda, Hashim; N. M., Ahmed; A., Mat Taib (Universiti Malaysia Pahang, 2009-06-20)In the past two decades, the biological and medical fields have seen great advances in the development of biosensors and biochips capable of characterizing and quantifying biomolecules. To understand the important ... -
Nanogap Dielectric Biosensor for label free DNA Hybridization detection
Uda, Hashim; Muhamad Emi Azri, Shohini; Harbant, Singh (Universiti Malaysia Perlis, 2007)Sensors based on nanogap capacitance changes are being developed for genomic and proteomic applications because they offer label-free detection on platforms amenable to high throughput configurations. This paper presents ... -
Nanoherbals in Human Healthcare: A Proposed Research and Development Roadmap II
S., Ahmad; Uda, Hashim (Universitas Gadjah Mada, 2012)Bioactive secondary metabolites derived from herbs are examined for their suitability of conversion into nanoforms having flexible morphological controls, surface stabilizations and surface functionalization. This can lead ...