1. H. W. Yussof, S. S. Bahri, and N.A. Mazlan (2017). Evaluation of power density on the bioethanol production using mesoscale oscillatory baffled reactor and stirred tank reactor. The 3rd International Conference on Chemical Engineering Sciences & Applications (ICChESA 2017). Banda Aceh, Indonesia. 20-21 September 2017.
2. M.S. Imla Syafiqah and H. W. Yussof (2017). Adsorption of Mercury from Aqueous Solutions Using Palm Oil Fuel Ash as an Adsorbent – Batch Studies. The 3rd International Conference on Chemical Engineering Sciences & Applications (ICChESA 2017). Banda Aceh, Indonesia. 20-21 September 2017.
3. M.S. Imla Syafiqah, N.A. Mustazar, and H. W. Yussof (2017). The Use of Factorial Design for Analysis of Mercury Removal Efficiency Using Palm Oil Fuel Ash. International Conference on Clean Water, Air & Soil (CleanWAS 2017). Bangkok, Thailand. 25-27 August 2017.
4. H. Wan Yussof, Syamsutajri S. Bahri, A.N. Phan, and A.P. Harvey (2017). Characterisation of the Fluid Mixing in Mesoscale Oscillatory Baffled Reactor Using Tanks-In-Series Model. FluidsChE 2017. Kota Kinabalu, Sabah. 4-6 April 2017.
1. F. S. Hashim, H. W. Yussof, M. A. K. M. Zahari, R. A. Rahman, R. M. Illias (2016). Physical, Chemical and Morphological Characterization of the Native and Alkaline Pre-treated Fiber Pressed Oil Palm Frond (FPOPF) for Fermentable Sugars Production. 9th Regional Conference on Chemical Engineering (RCChE 2016). Menara Razak, Universiti Teknologi Malaysia (UTM), Kuala Lumpur. 21-22 November 2016.
2. F. S. Hashim, H. W. Yussof, M. A. K. M. Zahari, R. A. Rahman, R. M. Illias (2016). Screening conditions for enzymatic hydrolysis by Using Sacchariseb C6 of pre-treated fiber pressed oil palm frond (FPOPF). Symposium of Malaysian Chemical Engineers (SOMChE 2016), Miri Marriott Resort & Spa, Jalan Temenggong Datuk Oyong Lawai, 98000 Miri, Malaysia. 1-3 December 2016.
3. K. H. Mah, H. W. Yussof, M. N. Abu Seman, A. W. Mohammad (2016). Effect of curing time on the pore size and effective thickness/porosity of polyester thin film composite nanofiltration membranes. National Congress on Membrane Technology 2016 (NATCOM 2016), Pulai Springs Resort, Johor, Malaysia. August 24-25, 2016.
4. K. H. Mah, H. W. Yussof, M. N. Abu Seman, A. W. Mohammad (2016). Synthesis and characterization of polyester thin film composite membrane via interfacial polymerization: fouling behaviour of uncharged solute. Second International Conference on Chemical Engineering (ICCE2016), The Jayakarta Suites Bandung, Boutique Suites, Hotel and Spa, Bandung, Indonesia. October 26-27, 2016.
5. K. H. Mah, H. W. Yussof, M. N. Abu Seman, A. W. Mohammad (2016). Polyester thin film composite nanofiltration membranes via interfacial polymerization: influence of five synthesis parameters on water permeability. International Conference of Chemical Engineering & Industrial Biotechnology (ICCEIB2016), Bayou Hotel, Malacca, Malaysia. November 28-30, 2016.
6. N. Fatihah M. Roli, Hafizuddin Wan Yussof, Syed M. Saufi , Mazrul N. Abu Seman,Abdul W. Mohammad (2016). Synthesis of Nanofiltration Membrane Developed from Triethanolamine and Trimesoyl Chloride for Separation of Xylose from Glucose. 9th Regional Conference on Chemical Engineering (RCChE 2016). Menara Razak, Universiti Teknologi Malaysia (UTM), Kuala Lumpur. 21-22 November 2016.
7. M.S. Imla Syafiqah, H. W. Yussof, A.A.M. Azoddein, S. Chandraseagar, and F.W. Ishak (2016). A Factorial Analysis Study on Removal of Mercury by Palm Oil Fuel Ash (2016). 9th Regional Conference on Chemical Engineering (RCChE 2016). Menara Razak, Universiti Teknologi Malaysia (UTM), Kuala Lumpur. 21-22 November 2016.
8. N. Fatihah M. Roli, Hafizuddin W. Yussof, Syed M. Saufi, Mazrul N. Abu Seman, Abdul W. Mohammad (2016). Separation Of Xylose From Glucose Using Pilot Scale Spiral Wound Commercial Membrane. National Congress on Membrane Technology (NATCOM2016). Pulai Spring Resort, Johor Bahru. 24-25 August 2016.
9. N. Fatihah M. Roli, Hafizuddin W. Yussof, Syed M. Saufi, Mazrul N. Abu Seman, Abdul W. Mohammad (2016). Separation Of Xylose From Glucose Using Spiral Wound Nanofiltration Membrane. Cross-Flow Parameters on Sugar Rejection. Second International Conference on Chemical Engineering (ICCE2016), The Jayakarta Suites Bandung, Boutique Suites, Hotel and Spa, Bandung, Indonesia. October 26-27, 2016.
10. Zulsyazwan Ahmad Khushairi, Hafizuddin Wan Yussof, and Norazwina Zainol. (2016). Optimization of Ferulic Acid Production from Oil Palm Frond Waste via Enzymatic Hydrolysis Using Soil Culture. 6th International Conference on Biotechnology for Wellness Industry (ICBWI). Equatorial Malacca, 17 – 18 August, 2016.
11. H. W. Yussof, S. S. Bahri, A. N. Phan and A. P. Harvey (2016). Effect of Oscillation Frequency and Amplitude on the Residence Time Distribution for Mesoscale Oscillatory Baffled Reactor. International Conference of Chemical Engineering & Industrial Biotechnology (ICCEIB2016), Bayou Hotel, Malacca, Malaysia. November 28-30, 2016.
12. H. W. Yussof, S. S. Bahri A. N. Phan and A. P. Harvey (2016). Enhancement of Bioethanol Production Using Mesoscale Oscillatory Baffled Reactor. International Conference on Alternative Fuels (ICAF2016), Kayseri, Turkey. 2 – 4 December, 2016.
13. H. Wan Yussof and F. S Hasyim (2016). A Factorial Analysis Study On Enzymatic Hydrolysis Of Fiber Pressed Oil Palm Frond For Bioethanol Production. 2nd International Conference On Advances In Renewable Energy Technologies (ICARET 2016). Bangi-Putrajaya Hotel, Malaysia. 23-25 February 2016.
14. N. Fatihah M. Roli and H. Wan Yussof (2016). Pilot Scale Spiral Wound Nanofiltration System For Processing Oil Palm Biomass Hydrolysate. 4th Conference On Future Biorefineries (2016). Adya Hotel, Langkawi. 12-15 March 2016.
1. H. Wan Yussof, Syamsutajri S. Bahri and A.P. Harvey (2015). Kinetic Modelling Of Transesterification Of Triacetin Using Synthesized Ion Exchange Resin (SIERs). ICMCE 2015: International Conference On Materials and Chemical Engineering. Hilton Jeddah, Saudi Arabia, 26-27 January 2015.
2. N. Fatihah M. Roli, H. Wan Yussof, Syed M. Saufi, Mazrul N. Abu Seman, Abdul W. Mohammad (2015). Synthesis Of Nanofiltration Membrane Developed From Different Concentration Of Triethanolamine (TEOA) For Separation Of Xylose From Glucose. 5th International Conference On Environment 2015 (ICENV 2015), Eastin Hotel, Penang, Malaysia. 18-19 August 2015.
3. K.H. Mah, H. Wan Yussof, M.N. Abu Seman, & A.W Mohammad (2015). Separation Of Xylose From Glucose Using Thin-Film Composite Membrane: A Study On Separation Performance And Fouling Properties. 5th International Conference On Environment 2015 (ICENV 2015), Eastin Hotel, Penang, Malaysia. 18-19 August 2015.
4. Nurul Atikah Mohd Rodzri, Zulsyazwan, Ahmad Khushairi, Hafizuddin Wan Yussof, N. Zainol and Rozaimi, Abu Samah. (2015). Main Factor Contribution in Factorial Screening for Ferulic Acid Production From Fibre-Pressed Oil Palm Frond (FPOPF) Using Mixed Culture. Asian Congress on Biotechnology 2015 (ACB2015). 15-19 November 2015.
5. Halifah Pagarra, Roshanida A. Rahman, Rosli Md Illias, Norzita Ngadi and Hafizuddin Wan Yussof (2015). Optimization and Characterization of Pectinase from Aspergillus niger Using Nepherolepis biserrata Pectin in Solid State Fermentation. Asian Congress on Biotechnology 2015 (ACB2015). 15-19 November 2015.
6. H. Wan Yussof (2015). Design and Fabrication of Low Cost Portable Water Treatment System For Emergency Preparedness and Disaster Relief. Symposium Bersama Gunma Universiti, Jepun : Environmental, Science & technology. Auditorium Perpustakaan Universiti Malaysia Pahang, Kampus Gambang. 25 November 2015.
7. N. Fatihah M. Roli and H. Wan Yussof (2015). Design Of Pilot Scale Nanofiltration System For Separation of Xylose from Glucose. 2nd Seminar on Long Term Research Grant Scheme (LRGS) Project Future Biorefineries. Flamingo Hotel by the beach, Batu Feringgi, Penang. 17 January 2015
8. Mah Kah Hong, Hafizuddin Wan Yussof (2015). Separation of xylose from glucose with thin-film composite nanofiltration membrane. 2nd Seminar on Long Term Research Grant Scheme (LRGS) Project Future Biorefineries. Flamingo Hotel by the beach,Feringgi,Penang. 17 January 2015
9. N. Fatihah M. Roli and H. Wan Yussof (2015). Design Of Pilot Scale Nanofiltration System For Separation of Xylose from Glucose. 3rd Seminar on Long Term Research Grant Scheme (LRGS) Project Future Biorefineries. The Grand Beach Resort Port Dickson,Negeri Sembilan. 10-11 August 2015.
10. K.H Mah, H. W. Yussof, M. N. Abu Seman, A. W. Mohammad (2015). Impact Of Curing Time On Thin Film Composite Nanofiltration Membrane For Improving Xylose-Glucose Separation. 3rd Seminar on Long Term Research Grant Scheme (LRGS) Project Future Biorefineries. The Grand Beach Resort Port Dickson, Negeri Sembilan. 10-11 August 2015.
1. Mah Kah Hong, Hafizuddin Wan Yussof, Mazrul Nizam Abu Seman, Nurul Ain Jalanni, Norazwina Zainol. Study On Factors Affecting Separation Of Xylose From Glucose By Nanofiltration Using Composite Membrane Developed From Triethanolamine (TEOA) and Trimesoyl Chloride (TMC). 27th Symposium of Malaysian Chemical Engineers (SOMChe 2014) in conjunction with 21st Regional Symposium Chemical Engineering (RSCE 2014), Taylor`s University Lakeside Campus, Selangor, Malaysia. 29-30 October 2014.
2. Mah Kah Hong, Hafizuddin Wan Yussof. Design of Pilot Scale Nanofiltration System for Separation of Xylose from Glucose. 1st Seminar on Long Term Research Grant Scheme (LRGS) Project Future Biorefineries. Puri Pujangga, UKM, Bangi. 12 June 2014.
3. Syamsutajri S. Bahri and H. Wan Yussof (2013). Development And Evaluation Of Mesoscale Oscillatory Baffled Reactor For Bioethanol Production. National Conference on Industry-Academia Initiatives in Biotechnology. Equatorial Hotel,Cameron Highlands ,Pahang. 5-7 December 2013.
4. H. Wan Yussof and Adam P. Harvey (2012). Tranesterification Of Triacetin Using Synthesized Ion Exchange Resins. 7th Edition of the International Conference On Environmental Catalyst. Lyon, France. 2-6 September 2012.
5. H. Wan Yussof and Adam P. Harvey (2012). Evaluation Of Synthesized Ion Exchange Resins (Siers) In The Tranesterification Of Triacetin. Malaysia International Conference On Trends In Bioprocess Engineering (MICOTriBE 2012). Meritus Pelangi Beach Resort & Spa Hotel, Langkawi. 3-5 July 2012.
6. Syamsutajri S. Bahri and H. Wan Yussof (2012). Characterization Of Nano-Structure Synthesized Ion Exchange Resins (SIERs). International Conference on Nanotechnology 2012 (ICONT 2012). MS Garden Hotel, Pahang. 30 May - 1 June February 2012.