Mukhtar N.A., M. and Hagos, F.Y. and Aziz, A.R.A. and Abdulah, A.A. and Karim, Z.A.A. (2022) Combustion characteristics of tri-fuel (diesel-ethanol-biodiesel) emulsion fuels in CI engine with micro-explosion phenomenon attributes. Fuel, 312. ISSN 00162361

Hagos, F.Y. and Abd Aziz, A.R. and Zainal, E.Z. and Mofijur, M. and Ahmed, S.F. (2022) Recovery of gas waste from the petroleum industry: a review. Environmental Chemistry Letters, 20 (1). pp. 263-281. ISSN 16103653

Ismael, M.A. and A. Aziz, A.R. and Mohammed, S.E. and Zainal A, E.Z. and Baharom, M.B. and Hagos, F.Y. (2021) Macroscopic and microscopic spray structure of water-in-diesel emulsions. Energy, 223. ISSN 03605442

Arman, A. and Hagos, F.Y. and Abdullah, A.A. and Aziz, A.R.A. and Mamat, R. and Cheng, C.K. and Vo, D.-V.N. (2020) Kinetic and CFD Modeling of Exhaust Gas Reforming of Natural Gas in a Catalytic Fixed-Bed Reactor for Spark Ignition Engines. Chemical Engineering and Technology, 43 (4). pp. 705-718. ISSN 09307516

Arman, A. and Hagos, F.Y. and Abdullah, A.A. and Mamat, R. and Aziz, A.R.A. and Cheng, C.K. (2020) Syngas production through steam and CO2 reforming of methane over Ni-based catalyst-A Review. In: UNSPECIFIED.

Abdul Karim, Z.A. and Kaur, E. and Syed Masharuddin, S.M. and Khan, M.Y. and Hagos, F.Y. (2020) The characteristics of water-in-biodiesel emulsions produced using ultrasonic homogenizer. Alexandria Engineering Journal, 59 (1). pp. 227-237. ISSN 11100168

Bahrudin, M.N.H.M. and Mukhtar, A.N. and Hagos, F.Y. and Mamat, R. and Abdullah, A.A. and Karim, Z.A.A. (2019) Comparison between tri-fuel (diesel-ethanol-biodiesel) emulsion with and without surfactant. In: UNSPECIFIED.

Hagos, F.Y. and A. Aziz, A.R. and Sulaiman, S.A. and Mamat, R. (2019) Engine speed and air-fuel ratio effect on the combustion of methane augmented hydrogen rich syngas in DI SI engine. International Journal of Hydrogen Energy. pp. 477-486. ISSN 03603199

Mukhtar, M.N.A. and Hagos, F.Y. and Noor, M.M. and Mamat, R. and Abdullah, A.A. and Abd Aziz, A.R. (2019) Tri-fuel emulsion with secondary atomization attributes for greener diesel engine � A critical review. Renewable and Sustainable Energy Reviews, 111. pp. 490-506. ISSN 13640321

Mukhtar, M.N.A. and Aziz, A.R.A. and Hagos, F.Y. and Noor, M.M. and Kadirgama, K. and Mamat, R. and Abdullah, A.A. (2019) The influence of formulation ratio and emulsifying settings on tri-fuel (diesel�ethanol�biodiesel) emulsion properties. Energies, 12 (9). ISSN 19961073

Aziz, A.R.A. and Hagos, F.Y. and Anbese, Y.T. and Heikal, M.R. and Firmansyah (2018) Application of the chain code and Fourier analysis techniques for the investigation of wrinkles and distortions on early flames. International Journal of Automotive and Mechanical Engineering, 15 (4). pp. 5709-5728. ISSN 22298649

Karim, Z.A.A. and Tee, D. and Khan, M.Y. and Hagos, F.Y. (2018) Investigation of Water-in-Biodiesel Emulsion Characteristics Produced by Ultrasonic Homogenizer. In: UNSPECIFIED.

Chala, G.T. and Aziz, A.R.A. and Hagos, F.Y. (2018) Natural Gas Engine Technologies: Challenges and Energy Sustainability Issue. Energies, 11 (11). ISSN 19961073

Abd Aziz, A.R. and Anbese, Y.T. and Hagos, F.Y. and Heikal, M.R. and Firmansyah (2017) Characteristics of early flame development in a direct-injection spark-ignition cng engine fitted with a variable swirl control valve. Energies, 10 (7). ISSN 19961073

Chala, G.T. and Aziz, A.R.A. and Hagos, F.Y. (2017) Combined effect of boost pressure and injection timing on the performance and combustion of CNG in a DI spark ignition engine. International Journal of Automotive Technology, 18 (1). pp. 85-96. ISSN 12299138

Mahgoub, B.K.M. and Hassan, S. and Sulaiman, S.A. and Mamat, R. and Abdul Adam, A. and Hagos, F.Y. (2017) Combustion and performance of syngas dual fueling in a CI engine with blended biodiesel as pilot fuel. BioResources, 12 (3). pp. 5617-5631. ISSN 19302126

Hagos, F.Y. and Aziz, A.R.A. and Sulaiman, S.A. and Firmansyah and Mamat, R. (2017) Effect of fuel injection timing of hydrogen rich syngas augmented with methane in direct-injection spark-ignition engine. International Journal of Hydrogen Energy, 42 (37). pp. 23846-23855. ISSN 03603199

Mahgoub, B.K.M. and Hassan, S. and Sulaiman, S.A. and Mamat, R. and Abdul Adam, A. and Hagos, F.Y. (2016) Dual fuel combustion in a CI engine powered by blended diesel-biodiesel fuel and simulated gasification gas. ARPN Journal of Engineering and Applied Sciences, 11 (22). pp. 12947-12952. ISSN 18196608

Hagos, F.Y. and Aziz, A.R.A. and Sulaiman, S.A. (2016) Effect of injection timing on combustion, performance and emissions of lean-burn syngas (H2/CO) in spark-ignition direct-injection engine. International Journal of Engine Research, 17 (9). pp. 921-933. ISSN 14680874

Babiker, M.E. and Aziz, A.R.A. and Heikal, M. and Yusup, S. and Hagos, F.Y. (2016) Experimental and simulation study on steam gasification of phoenix-dactylifera date palm seeds. International Journal of Automotive and Mechanical Engineering, 13 (1). pp. 3201-3214. ISSN 22298649

Mahgoub, B.K.M. and Sulaiman, S.A. and A Karim, Z.A. and Hagos, F.Y. (2015) Experimental study on the effect of varying syngas composition on the emissions of dual fuel CI engine operating at various engine speeds. In: UNSPECIFIED.

Hagos, F.Y. and Aziz, A.R.A. and Sulaiman, S.A. (2015) Investigation of deposit formation in direct-injection spark-ignition engine powered on syngas. International Journal of Automotive Technology, 16 (3). pp. 479-485. ISSN 12299138

Hagos, F.Y. and Aziz, A.R.A. and Sulaiman, S.A. (2015) Methane enrichment of syngas (H2/CO) in a spark-ignition directinjection engine: Combustion, performance and emissions comparison with syngas and Compressed Natural Gas. Energy, 90. pp. 2006-2015. ISSN 03605442

Yahaya Khan, M. and Abdul Karim, Z.A. and Hagos, F.Y. and Aziz, A.R.A. and Tan, I.M. (2014) Current trends in water-in-diesel emulsion as a fuel. The Scientific World Journal, 2014. ISSN 1537744X

Hagos, F.Y. and Aziz, A.R.A. and Sulaiman, S.A. (2014) Effect of air-fuel ratio on the combustion characteristics of syngas (H2:CO) in direct-injection spark-ignition engine. In: UNSPECIFIED.

Hagos, F.Y. and Abd Aziz, A.R. (2014) Mass fraction burn investigation of lean burn low BTU gasification gas in direct-injection spark-ignition engine. SAE Technical Papers, 1. ISSN 01487191

Mahmud, A.M. and Kahsay, M.B. and Hailesilasie, A. and Hagos, F.Y. and Gebray, P. and Kelele, H.K. and Gebrehiwot, K. and Bauer, H. and Deckers, S. and De Baerdemaeker, J. and Driesen, J. (2014) Solar energy resource assessment of the geba catchment, Northern Ethiopia. In: UNSPECIFIED.

Hagos, F.Y. and Aziz, A.R.A. and Sulaiman, S.A. (2014) Syngas (H2/CO) in a spark-ignition direct-injection engine. Part 1: Combustion, performance and emissions comparison with CNG. International Journal of Hydrogen Energy, 39 (31). pp. 17884-17895. ISSN 03603199

Hagos, F.Y. and Aziz, A.R.A. and Sulaiman, S.A. (2014) Trends of syngas as a fuel in internal combustion engines. Advances in Mechanical Engineering, 2014. ISSN 16878132

Hagos, F.Y. and Aziz, A.R.A. and Sulaiman, S.A. (2013) Combustion characteristics of direct-injection spark-ignition engine fuelled with producer gas. Energy Education Science and Technology Part A: Energy Science and Research, 31 (3). pp. 1683-1698. ISSN 1308772X

Hagos, F.Y. and Aziz, A.R.A. and Sulaiman, S.A. (2013) Early flame development image comparison of low calorific value syngas and CNG in di SI gas engine. In: UNSPECIFIED.

Hagos, F.Y. and Rashid, A. and Aziz, A. and Sulaiman, S.A. (2013) Study of syngas combustion parameters effect on internal combustion engine. Asian Journal of Scientific Research, 6 (2). pp. 187-196. ISSN 19921454

Hagos, F.Y. and Aziz, A.R.A. and Sulaiman, S.A. and Firmansyah (2012) Combustion characteristics of late injected CNG in a spark ignition engine under lean operating condition. Journal of Applied Sciences, 12 (23). pp. 2368-2375. ISSN 18125654

Hagos, F.Y. and Aziz, A.R.A. and Tan, I.M. (2011) Water-in-diesel emulsion and its micro-explosion phenomenon-review. In: UNSPECIFIED.