Universiti Tenaga Nasional

Research Output 1989 2020

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2006
5 Citations (Scopus)

Transitions to chaos in squeeze-film dampers

Inayat Hussain, J. I. & Mureithi, N. W., 01 Sep 2006, In : Communications in Nonlinear Science and Numerical Simulation. 11, 6, p. 721-744 24 p.

Research output: Contribution to journalArticle

Damper
Chaos theory
Rotor
Chaos
Rotors
3 Citations (Scopus)

Treatment of oily waste water emulsions from metallurgical industries using microwave irradiation

Saifuddin, N. & Chua, K. H., 01 Jan 2006, In : Biotechnology. 5, 3, p. 308-314 7 p.

Research output: Contribution to journalArticle

Microwave irradiation
Microwaves
Waste Water
Emulsions
Industry

Utilization of numerical techniques to predict the thermal behavior of wood column subjected to fire. Part A: Using finite element methods to develop mathematical model for wood column

Elshayeb, M., Rashid Ab Malik, A., Ideris, F., Hari, Z., Ab Razak, N., Siang, J. E. L. & Anuar, Z., 17 Mar 2006, In : Key Engineering Materials. 306-308 I, p. 577-582 6 p.

Research output: Contribution to journalArticle

Wood
Fires
Mathematical models
Finite element method
Temperature

Utilization of numerical techniques to predict the thermal behavior of wood column subjected to fire part B: Analysis of column temperature and fire resistance

Elshayeb, M., Malik, A. R. A., Ideris, F., Hari, Z., Razak, N. A., Siang, J. E. L. & Anuar, Z., 17 Mar 2006, In : Key Engineering Materials. 306-308 I, p. 583-588 6 p.

Research output: Contribution to journalArticle

Fire resistance
Wood
Fires
Mathematical models
Timber
2 Citations (Scopus)

Utilization of numerical techniques to predict the thermal behavior of wood column subjected to fire part C: Sensitivity analysis

Elshayeb, M., Malik, A. R. A., Ideris, F., Hari, Z., Razak, N. A., Siang, J. E. L. & Anuar, Z., 17 Mar 2006, In : Key Engineering Materials. 306-308 I, p. 589-594 6 p.

Research output: Contribution to journalArticle

Fire resistance
Sensitivity analysis
Wood
Fires
Axial loads
12 Citations (Scopus)

WCDMA forward link capacity improvement by using adaptive antenna with genetic algorithm assisted MDPC beamforming technique

Kiong, T. S., Ismail, M. & Hassan, A., 17 Jul 2006, In : Journal of Applied Sciences. 6, 8, p. 1766-1773 8 p.

Research output: Contribution to journalArticle

Beamforming
Telecommunication links
Smart antennas
Electric power utilization
Genetic algorithms
2005
23 Citations (Scopus)

Bifurcations of a flexible rotor response in squeeze-film dampers without centering springs

Inayat-Hussain, J. I., 01 Apr 2005, In : Chaos, Solitons and Fractals. 24, 2, p. 583-596 14 p.

Research output: Contribution to journalArticle

Damper
Rotor
Bifurcation
Rotating Machinery
Range of data
1 Citation (Scopus)

Co, hc and nox emissions characteristics of a retrofitted bi-fuel natural gas engine

Kalam, M. A., Masjuki, H. H., Amalina, M. A., Abdesselam, H. & Mahlia, T. M. I., 01 Jan 2005, In : HKIE Transactions Hong Kong Institution of Engineers. 12, 3, p. 25-30 6 p.

Research output: Contribution to journalArticle

Gas engines
Compressed natural gas
Natural gas
Engines
Gasoline
44 Citations (Scopus)

Constant and high switching frequency torque controller for DTC drives

Toh, C. L., Idris, N. R. N. & Yatim, A. H. M., 01 Jun 2005, In : IEEE Power Electronics Letters. 3, 2, p. 76-80 5 p.

Research output: Contribution to journalArticle

Torque control
Switching frequency
Torque
Controllers
Digital signal processors
54 Citations (Scopus)

Cost-benefit analysis and emission reduction of lighting retrofits in residential sector

Mahlia, T. M. I., Said, M. F. M., Masjuki, H. H. & Tamjis, M. R., 01 Jun 2005, In : Energy and Buildings. 37, 6, p. 573-578 6 p.

Research output: Contribution to journalArticle

Cost benefit analysis
Lighting
Energy conservation
Energy efficiency
Electricity
6 Citations (Scopus)

Dynamic field modelling of torque and radial forces in vector-controlled induction machines with bearing relief

Ungku Amirulddin Al Amin, U. A., Asher, G. M., Sewell, P. & Bradley, K. J., 01 Jul 2005, In : IEE Proceedings: Electric Power Applications. 152, 4, p. 894-904 11 p.

Research output: Contribution to journalArticle

Bearings (structural)
Torque
Rotors
Torque motors
Machine design
15 Citations (Scopus)

Electricity savings from implementation of minimum energy efficiency standard for TVs in Malaysia

Varman, M., Masjuki, H. H. & Mahlia, T. M. I., 01 Jun 2005, In : Energy and Buildings. 37, 6, p. 685-689 5 p.

Research output: Contribution to journalArticle

Energy efficiency
Electricity
Television receivers
Videodisks
Television
15 Citations (Scopus)

Energy labeling for electric fans in Malaysia

Mahlia, T. M. I., Masjuki, H. H., Taha, F. M., Rahim, N. A. & Saidur, R., 01 Jan 2005, In : Energy Policy. 33, 1, p. 63-68 6 p.

Research output: Contribution to journalArticle

Labeling
Fans
Labels
energy
Electric appliances

Experimental work on the use of liquefied petroleum gas in single cylinder petrol engine

Yusaf, T., Hussein, I., Zamri, M. Y. & Kuzi, A., 01 Jan 2005, In : SAE Technical Papers.

Research output: Contribution to journalArticle

Liquefied petroleum gas
Engine cylinders
Engines
Gas emissions
Air quality
43 Citations (Scopus)

High-speed end-milling of AISI 304 stainless steels using new geometrically developed carbide inserts

Abou-El-Hossein, K. A. & Yahya, Z., 15 May 2005, In : Journal of Materials Processing Technology. 162-163, SPEC. ISS., p. 596-602 7 p.

Research output: Contribution to journalArticle

Tool Wear
Stainless Steel
Carbides
High Speed
Stainless steel
16 Citations (Scopus)

Intracavity loss control effect on tuning range of tunable dual erbium-doped fiber laser

Abdullah, F., Noor, A. S. M., Mahdi, M. A., Rashid, H. A. A. & Abdullah, M. K., 01 Nov 2005, In : Laser Physics Letters. 2, 11, p. 535-537 3 p.

Research output: Contribution to journalArticle

Erbium
Fiber lasers
erbium
fiber lasers
Tuning
23 Citations (Scopus)

Labeling design effort for household refrigerator-freezers in Malaysia

Saidur, R., Masjuki, H. H. & Mahlia, T. M. I., 01 Mar 2005, In : Energy Policy. 33, 5, p. 611-618 8 p.

Research output: Contribution to journalArticle

Refrigerators
Labeling
Labels
energy
stakeholder

One-watt TV label implementation in Malaysia

Varman, M., Masjuki, H. H. & Mahlia, T. M. I., 01 Jan 2005, In : International Journal of Regulation and Governance. 5, 1, p. 1-12 12 p.

Research output: Contribution to journalArticle

penetration
carbon monoxide
energy
carbon dioxide
developing world
1 Citation (Scopus)
Engine cylinders
Internal combustion engines
Entropy
Geometry
Heat transfer
340 Citations (Scopus)
Charcoal
Chitosan
Waste Water
Heavy Metals
Oils
9 Citations (Scopus)

Simultaneous dual-wavelength lasing of an erbium-doped fibre laser over wide spectrum range by intracavity loss optimisation

Abdullah, F., Noor, A. S. M., Mahdi, M. A., Jamaludin, M. Z., Dimyati, K. & Abdullah, M. K., 01 Nov 2005, In : Optics and Laser Technology. 37, 8, p. 638-641 4 p.

Research output: Contribution to journalArticle

Erbium
Fiber lasers
Bandpass filters
erbium
fiber lasers
8 Citations (Scopus)

Storm water treatment using bio-ecological drainage system

Ayub, K. R., Mohd Sidek, L., Ainan, A., Zakaria, N. A., Ghani, A. A. & Rozi, A., 01 Jan 2005, In : International Journal of River Basin Management. 3, 3, p. 215-221 7 p.

Research output: Contribution to journalArticle

water treatment
pond
stormwater
constructed wetland
chemical process

Storm Water Treatment Using Bio-Ecological Drainage System”. Special Issue Rivers’04: Managing Rivers In The 21St Century: Issues And Challenges

Mohd Sidek, L., Ayub, K. R., Ainan, A., Zainal Abidin, M. R., Zakaria, N. A., Ghani, A. A. & Rozi, A., 01 Aug 2005, (Unpublished) In : International Journal of River Basin Management. 3, 3, p. 215-221

Research output: Contribution to journalArticle

5 Citations (Scopus)
Varistors
Latex
Latexes
Binders
Defects
28 Citations (Scopus)

Thermal and melting heat transfer characteristics in a latent heat storage system using mikro

Hendra, R., Hamdani, Mahlia, T. M. I. & Masjuki, H. H., 01 Jul 2005, In : Applied Thermal Engineering. 25, 10, p. 1503-1515 13 p.

Research output: Contribution to journalArticle

Heat storage
Phase change materials
Latent heat
Melting
Heat transfer
4 Citations (Scopus)

Thermal-wave interferometry of gas-liquid applied to a thermal-wave resonator cavity technique

Azmi, B. Z., Liaw, H. S. & Abbas, Z., 01 Jul 2005, In : Review of Scientific Instruments. 76, 7, 074901.

Research output: Contribution to journalArticle

Cavity resonators
Thermal diffusivity
cavity resonators
Interferometry
thermal diffusivity
Convolutional Codes
MPEG-4
Convolutional codes
Unequal
Transceivers
2004
56 Citations (Scopus)

Adsorption characteristics of organosilica based mesoporous materials

Matsumoto, A., Misran, H. & Tsutsumi, K., 17 Aug 2004, In : Langmuir. 20, 17, p. 7139-7145 7 p.

Research output: Contribution to journalArticle

Mesoporous materials
Hexane
Hybrid materials
Adsorption
adsorption
2 Citations (Scopus)

Characterization of a dual wavelength fibre laser based-on dumbbell configuration

Abdullah, F., Bouzid, B., Mahdi, M. A., Cheah, C. L., Jamaludin, M. Z. & Abdullah, M. K., 01 Apr 2004, In : Optics and Laser Technology. 36, 3, p. 187-190 4 p.

Research output: Contribution to journalArticle

Fiber lasers
fiber lasers
Wavelength
pumping
output
52 Citations (Scopus)

Cost-benefit analysis of implementing minimum energy efficiency standards for household refrigerator-freezers in Malaysia

Mahlia, T. M. I., Masjuki, H. H., Saidur, R. & Amalina, M. A., 01 Nov 2004, In : Energy Policy. 32, 16, p. 1819-1824 6 p.

Research output: Contribution to journalArticle

Cost benefit analysis
Refrigerators
cost-benefit analysis
energy efficiency
Energy efficiency
1 Citation (Scopus)

Development of energy test procedure for household refrigerator-freezers in Malaysia

Saidur, R., Nasrudin, A. R., Masjuki, H. H., Choudhury, I. A., Mahlia, T. M. I. & Husnawan, M., 2004, In : International Journal of Power and Energy Systems. 24, 1, p. 46-55 10 p.

Research output: Contribution to journalArticle

Malaysia
Refrigerators
Energy Consumption
Energy utilization
Energy
20 Citations (Scopus)
Energy efficiency
Labels
Air
23 Citations (Scopus)

Mitigation of emissions through energy efficiency standards for room air conditioners in Malaysia

Mahlia, T. M. I., Masjuki, H. H., Saidur, R. & Amalina, M. A., 01 Nov 2004, In : Energy Policy. 32, 16, p. 1783-1787 5 p.

Research output: Contribution to journalArticle

energy efficiency
Energy efficiency
mitigation
air
Air
10 Citations (Scopus)

Normalisation procedure in thermal wave approach of thermal diffusivity measurement of solids using pyroelectric sensor

Azmi, B. Z., Liaw, H. S., Yunus, W. M. M., Hashim, M., Moksin, M. M. & Yusoff, W. M. D. W., 01 Jul 2004, In : Infrared Physics and Technology. 45, 4, p. 315-321 7 p.

Research output: Contribution to journalArticle

Thermal diffusivity
thermal diffusivity
sensors
Sensors
Wave interference
7 Citations (Scopus)

Pamoate intercalated Zn-Al layered double hydroxide for the formation of layered organic-inorganic intercalate

Hussein, M. Z., Jubri @ Mohd Zufri, Z., Zainal, Z. & Yahya, A. H., 02 Aug 2004, In : Materials Science- Poland. 22, 1, p. 57-67 11 p.

Research output: Contribution to journalArticle

Intercalation
hydroxides
Negative ions
intercalation
Anions
88 Citations (Scopus)

Preserving brightness in histogram equalization based contrast enhancement techniques

Chen, S. D. & Ramli, A. R., Sep 2004, In : Digital Signal Processing: A Review Journal. 14, 5, p. 413-428 16 p.

Research output: Contribution to journalArticle

Luminance
Image enhancement
73 Citations (Scopus)

Programming models for hybrid FPGA-CPU computational components: A missing link

Andrews, D., Niehaus, D., Jidin, R., Finley, M., Peck, W., Frisbie, M., Ortiz, J., Komp, E. & Ashenden, P., 01 Jul 2004, In : IEEE Micro. 24, 4, p. 42-53 12 p.

Research output: Contribution to journalArticle

Computer programming
Program processors
Field programmable gate arrays (FPGA)
Data storage equipment
Computer peripheral equipment
29 Citations (Scopus)

Supervisory control of dynamic voltage restorers

Ramachandaramurthy, V. K., Arulampalam, A., Fitzer, C., Zhan, C., Barnes, M. & Jenkins, N., 01 Jul 2004, In : IEE Proceedings: Generation, Transmission and Distribution. 151, 4, p. 509-516 8 p.

Research output: Contribution to journalArticle

Electric potential
Costs
2003
20 Citations (Scopus)

Bio-ecological drainage system (BIOECODS) for water quantity and quality control

Zakaria, N. A., Ab Ghani, A., Abdullah, R., Mohd Sidek, L. & Ainan, A., Sep 2003, In : International Journal of River Basin Management. 1, 3, p. 237-251 15 p.

Research output: Contribution to journalArticle

quality control
stormwater
water quality
engineering
water

Bio-Ecological Drainage Systems (Bioecods) For Water Quantity And Quality Control

Mohd Sidek, L., Ghani, A. A. & Rozi, A., 01 Aug 2003, (Unpublished) In : International Journal of River Basin Management. 1, 3

Research output: Contribution to journalArticle

8 Citations (Scopus)

CO2 taxation on electricity generation for trees replanting in Malaysia

Mahlia, T. M. I., 01 Jan 2003, In : Energy Conversion and Management. 44, 5, p. 723-730 8 p.

Research output: Contribution to journalArticle

Taxation
Electricity
Crude oil
Coal
Gas fuels
479 Citations (Scopus)

Contrast enhancement using recursive mean-separate histogram equalization for scalable brightness preservation

Chen, S. D. & Ramli, A. R., 01 Jan 2003, In : IEEE Transactions on Consumer Electronics. 49, 4, p. 1301-1309 9 p.

Research output: Contribution to journalArticle

Luminance
Consumer electronics
1 Citation (Scopus)

Corrosion properties of H mode RF inductively coupled plasma nitrided stainless steel substrates

Kumar Chakrabarty, C., 01 Jan 2003, In : Surface Engineering. 19, 1, p. 23-31 9 p.

Research output: Contribution to journalArticle

nitriding
Nitriding
Stainless Steel
Inductively coupled plasma
stainless steels
32 Citations (Scopus)

Dynamic modeling and simulation of a palm wastes boiler

Mahlia, T. M. I., Abdulmuin, M. Z., Alamsyah, T. M. I. & Mukhlishien, D., 01 Jan 2003, In : Renewable Energy. 28, 8, p. 1235-1256 22 p.

Research output: Contribution to journalArticle

Boilers
Palm oil
Dynamic models
Boiler control
Superheaters
1 Citation (Scopus)

High-power dual-wavelength loop-mirror cavity fiber laser

Abdullah, F., Mahdi, M. A., Bouzid, B. & Abdullah, M. K., 06 Oct 2003, In : Microwave and Optical Technology Letters. 39, 4, p. 286-287 2 p.

Research output: Contribution to journalArticle

Fiber lasers
fiber lasers
Mirrors
retarding
mirrors
521 Citations (Scopus)

Minimum mean brightness error bi-histogram equalization in contrast enhancement

Chen, S. D. & Ramli, A. R., 01 Jan 2003, In : IEEE Transactions on Consumer Electronics. 49, 4, p. 1310-1319 10 p.

Research output: Contribution to journalArticle

Luminance
Consumer electronics
29 Citations (Scopus)

On the bifurcations of a rigid rotor response in squeeze-film dampers

Inayat Hussain, J. I., Kanki, H. & Mureithi, N. W., 01 Jan 2003, In : Journal of Fluids and Structures. 17, 3, p. 433-459 27 p.

Research output: Contribution to journalArticle

Rigid rotors
Rotating machinery
Rotors
Gravitation
Bearings (structural)
29 Citations (Scopus)

Projected electricity savings from implementing minimum energy efficiency standard for household refrigerators in Malaysia

Mahlia, T. M. I., Masjuki, H. H., Saidur, R., Choudhury, I. A. & NoorLeha, A. R., 01 Jan 2003, In : Energy. 28, 7, p. 751-754 4 p.

Research output: Contribution to journalArticle

Refrigerators
Energy efficiency
Electricity
Energy conservation
75 Citations (Scopus)

Two electrical models of the lead-acid battery used in a dynamic voltage restorer

Zhan, C. J., Wu, X. G., Kromlidis, S., Ramachandaramurthy, V. K., Barnes, M., Jenkins, N. & Ruddell, A. J., 01 Mar 2003, In : IEE Proceedings: Communications. 150, 2, p. 175-182 8 p.

Research output: Contribution to journalArticle

Lead acid batteries
Electric potential
Plasma sources
Austenitic steel
Inductively coupled plasma
Nitrides
nitrides