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6 Hagos, F. Y., "Syngas (H2/CO) in a spark-ignition direct-injection engine. Part 1: Combustion, performance and emissions comparison with CNG" 39 : 17884-17895, 2014
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10 Firmansyah, "Optimization of Injection Parameters in Compressed Natural Gas Direct Injection Spark Ignition Engine" Universiti Teknologi Petronas 2007
1 Anon, "Wood gas as engine fuel" 72 : 133-, 1986
2 Decker, K. D., "Wood Gas Vehicles: Firewood in the Fuel Tank"
3 Mohammed, S. E., "The effects of fuel-injection timing at medium injection pressure on the engine characteristics and emissions of a CNG-DI engine fueled by a small amount of hydrogen in CNG" 36 (36): 11997-12006, 2011
4 Lieuwen, T., "Synthesis Gas Combustion: Fundamentals and Applications" Taylor & Francis Group 2010
5 Richards, G. A., "Syngas Utilization" Taylor and Francis 2010
6 Hagos, F. Y., "Syngas (H2/CO) in a spark-ignition direct-injection engine. Part 1: Combustion, performance and emissions comparison with CNG" 39 : 17884-17895, 2014
7 Reed, M. G., "Surface profiling of combustion chamber deposits using aperture correlation confocal microscopy" 189 (189): 188-191, 1998
8 Leung, B., "Surface Analysis and Materials Characterization Laboratory" Hong Kong Baptist University
9 Ry, S. E., "Puukaasun Historiaa"
10 Firmansyah, "Optimization of Injection Parameters in Compressed Natural Gas Direct Injection Spark Ignition Engine" Universiti Teknologi Petronas 2007
11 Hagos, F. Y., "Mass fraction burn investigation of lean burn low BTU gasification gas in direct-injection spark-ignition engine" 2014
12 Richards, G. A., "Gasification Technology to Produce Synthesis Gas" CRC Press Taylor and Francis Group 2010
13 John, C., "Formation Mechanisms of Combustion Chamber Deposits" Massachusetts Institute of Technology 2001
14 Jr., "Extraction, Mass Spectroscopy and Nuclear Magnetic Resonance" Springer 1985
15 Wyse, C., "Cylinder, purifier technologies for controlling contamination in CO" 45 (45): 125-129, 2002
16 Williams, T. C., "Contamination of carbon monoxide with metal carbonyl: implications for combustion research" 179 : 1225-1230, 2007
17 Hagos, F. Y., "Combustion, Performance and Emissions Characteristics of Imitated Syngases in Directinjection Spark-igntion Engine" Universiti Teknologi Petronas 2013
18 Hagos, F. Y., "Combustion characteristics of direct-injection sparkignition engine fuelled with producer gas" 31 : 3-, 2013
19 Basu, P., "Biomass Gasification and Pyrolysis: Practical Design and Theory" Elsevier 2010
20 Mohammed, S. E. L., "Analysis of engine characteristics and emissions fueled by in-situ mixing of small amount of hydrogen in CNG" 36 (36): 4029-4037, 2011
21 Abdullah, M. A., "An experimental investigation of hydrogen combustion in a direct injection spark ignition natural gas engine" 2009
22 Shu, G., "A review of experimental studies on deposits in the combustion chambers of internal combustion engines" 13 (13): 357-369, 2012