Browsing Journal Articles by Author "sfkhor@unimap.edu.my"
Now showing items 1-6 of 6
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Comparative study between measurement and predictions using geometrical optics and uniform theory of diffraction for case of non-line-of-sight (NLOS) in indoor environment
Cheng, Ee Meng, Dr.; Zulkifly, Abbas, Prof. Madya Dr.; Mohd Fareq, Abd. Malek, Dr.; Lee, Kim Yee, Dr.; Kok, Yeow You; Khor, Shing Fhan, Dr. (Springer Science+Business Media New York, 2013-08)This paper describes the investigation and comparison of the accuracy of a deterministic model for a WLAN system in the indoor environment. The measurement system consisted of a spectrum analyzer and a log-periodic antenna. ... -
Experimental determination of the performance of rice husk-carbon nanotube composites for absorbing microwave signals in the frequency range of 12.4-18 GHz
Lee, Yeng Seng; Mohd Fareq, Abd. Malek, Dr.; Cheng, Ee Meng, Dr.; Liu, Wei Wen, Dr.; Kok, Yeow You; Muhammad Nadeem, Iqbal; Wee, Fwen Hoon, Dr.; Khor, Shing Fhan, Dr.; Liyana, Zahid; Mohd Fariz, Haji Abd Malek (EMW Publishing, 2013)Composites of rice husks and carbon nanotubes (RHC-NTs) are an innovation in improving the absorption of microwave signals. Rice husks, which are an agricultural waste material, have been found to possess a significant ... -
Nonlinear optical characterization of phosphate glasses based on ZnO using the Z-scan technique
Masoumeh, Shokati Mojdehi; Wan Mahmood, Mat Yunus, Prof. Dr.; Khor, Shing Fhan, Dr.; Zainal Abidin, Talib, Prof. Dr.; Nizam, Tamchek, Dr. (Chinese Physical Society and IOP Publishing Ltd, 2013-11)The nonlinear optical properties of a phosphate vitreous system [(ZnO) x - (MgO)30-x- (P2O5)70], where x = 8, 10, 15, 18, and 20 mol% synthesized through the melt-quenching technique have been investigated by using the ... -
Optical properties of ultraphosphate glasses containing mixed divalent zinc and magnesium ions
Khor, Shing Fhan, Dr.; Zainal Abidin, Talib, Prof. Dr.; Mohd Fareq, Abd. Malek, Dr.; Cheng, Ee Meng, Dr. (Elsevier, 2013-01)Ternary zinc magnesium ultraphosphate glasses corresponding to (ZnO)x(MgO)30−x(P2O5)70 were prepared by melt quenching technique in the range of 5 ⩽ x ⩽ 20 mol%. The optical absorption spectra of the glasses were measured ... -
Optical properties of ultraphosphate glasses containing mixed divalent zinc and magnesium ions
Khor, Shing Fhan, Dr.; Zainal Abidin, Talib, Prof. Dr.; Mohd Fareq, Abd. Malek, Dr.; Cheng, Ee Meng, Dr. (Elsevier B.V., 2013-01)Ternary zinc magnesium ultraphosphate glasses corresponding to (ZnO)x (MgO)30 x (P2O5)70 were prepared by melt quenching technique in the range of 5 6 x 6 20 mol%. The optical absorption spectra of the glasses were ... -
Synthesis of sustainable binary calcium monosilicate ceramics from bio-waste: effect of sintering temperature on microstructure and electrical properties
N. H., Jakfar; B., Johar; N. M., S. Adzali; S. N. H., Mohd. Yunus; Cheng, E. M.; E. Z., M. Tarmizi; Khor, S. F.; Z., A. Talib (Universiti Malaysia Perlis (UniMAP), 2023-01)This study was conducted to synthesise calcium monosilicate ceramics using rice husks and raw eggshells and investigated the effect of sintering temperature on the physical, microstructure and electrical properties of ...