| Environmental impact of food packaging materials: A review of contemporary development from conventional plastics to polylactic acid based materials LK Ncube, AU Ude, EN Ogunmuyiwa, R Zulkifli, IN Beas Materials 13 (21), 4994, 2020 | 755 | 2020 |
| An overview of plastic waste generation and management in food packaging industries LK Ncube, AU Ude, EN Ogunmuyiwa, R Zulkifli, IN Beas Recycling 6 (1), 12, 2021 | 692 | 2021 |
| Acoustic properties of multi-layer coir fibres sound absorption panel R Zulkifli, MJM Nor, MFM Tahir, AR Ismail, MZ Nuawi Journal of Applied Sciences 8 (20), 3709-3714, 2008 | 226 | 2008 |
| Automated analysis of exam questions according to Bloom's taxonomy N Omar, SS Haris, R Hassan, H Arshad, M Rahmat, NFA Zainal, R Zulkifli Procedia-Social and Behavioral Sciences 59, 297-303, 2012 | 204 | 2012 |
| Noise control using coconut coir fiber sound absorber with porous layer backing and perforated panel R Zulkifli, MJM Nor American Journal of Applied Sciences 7 (2), 260, 2010 | 183 | 2010 |
| Comparative research on the crashworthiness characteristics of woven natural silk/epoxy composite tubes RA Eshkoor, SA Oshkovr, AB Sulong, R Zulkifli, AK Ariffin, CH Azhari Materials & Design 47, 248-257, 2013 | 130 | 2013 |
| Performance of four air-based photovoltaic thermal collectors configurations with bifacial solar cells P Ooshaksaraei, K Sopian, SH Zaidi, R Zulkifli Renewable energy 102, 279-293, 2017 | 128 | 2017 |
| Effect of trigger configuration on the crashworthiness characteristics of natural silk epoxy composite tubes RA Eshkoor, SA Oshkovr, AB Sulong, R Zulkifli, AK Ariffin, CH Azhari Composites Part B: Engineering 55, 5-10, 2013 | 128 | 2013 |
| Numerical study of the enhancement of heat transfer for hybrid CuO-Cu nanofluids flowing in a circular pipe HH Balla, S Abdullah, W MohdFaizal, R Zulkifli, K Sopian Journal of oleo science 62 (7), 533-539, 2013 | 115 | 2013 |
| Development of 5S practice checklist for manufacturing industry N Khamis, MN Abrahman, KR Jamaludin, AR Ismail, JA Ghani, R Zulkifli Proceedings of the World Congress on Engineering 1 (3), 1-5, 2009 | 97 | 2009 |
| Tensile properties and microstructure of single-cellulosic bamboo fiber strips after alkali treatment A Adel Salih, R Zulkifli, CH Azhari Fibers 8 (5), 26, 2020 | 93 | 2020 |
| Thermal-hydraulic performance and design parameters in a curved-corrugated channel with L-shaped baffles and nanofluid RK Ajeel, K Sopian, R Zulkifli Journal of Energy Storage 34, 101996, 2021 | 87 | 2021 |
| Effect of different factors on the acoustic absorption of coir fiber MJM Nor, M Ayub, R Zulkifli, N Amin, MH Fouladi Journal of Applied Sciences 10 (22), 2887-2892, 2010 | 87 | 2010 |
| Kenaf fiber composite in automotive industry: an overview F Hassan, R Zulkifli, MJ Ghazali, CH Azhari Int. J. Adv. Sci. Eng. Inf. Technol 7 (1), 315-321, 2017 | 83 | 2017 |
| Failure mechanism of woven natural silk/epoxy rectangular composite tubes under axial quasi-static crushing test using trigger mechanism RA Eshkoor, AU Ude, SA Oshkovr, AB Sulong, R Zulkifli, AK Ariffin, ... International Journal of Impact Engineering 64, 53-61, 2014 | 76 | 2014 |
| Characterization of a bifacial photovoltaic panel integrated with external diffuse and semimirror type reflectors P Ooshaksaraei, K Sopian, R Zulkifli, MA Alghoul, SH Zaidi International Journal of Photoenergy 2013 (1), 465837, 2013 | 73 | 2013 |
| Comparison of acoustic properties between coir fibre and oil palm fibre R Zulkifli, MJM Nor, AR Ismail, MZ Nuawi, S Abdullah, MFM Tahir, ... European Journal of Scientific Research 33 (1), 144-152, 2009 | 71 | 2009 |
| A novel curved-corrugated channel model: thermal-hydraulic performance and design parameters with nanofluid RK Ajeel, K Sopian, R Zulkifli International Communications in Heat and Mass Transfer 120, 105037, 2021 | 70 | 2021 |
| Numerical investigation of binary hybrid nanofluid in new configurations for curved-corrugated channel by thermal-hydraulic performance method RK Ajeel, R Zulkifli, K Sopian, SN Fayyadh, A Fazlizan, A Ibrahim Powder Technology 385, 144-159, 2021 | 69 | 2021 |
| Structure parameters and designs and their impact on performance of different heat exchangers: A review HA mohammed Hussein, R Zulkifli, WMFBW Mahmood, RK Ajeel Renewable and Sustainable Energy Reviews 154, 111842, 2022 | 68 | 2022 |
Shahrir AbdullahUniversiti Kebangsaan Malaysia (The National University of Malaysia)Verified email at ukm.edu.my
