Yang, C., Zhao, H. and Megaritis, A. (2009) 'In-cylinder studies of CAI Combustion with Negative Valve Overlap and Simultaneous Chemiluminescence Analysis'.SAE World Congress 2009. Detroit, USA. 20 - 23 April. SAE International. ISSN: 0148-7191

Zhao, H. and Ganippa, L. (2009) 'Laser Induced Incandescence (LII)', in Lackner, M. (ed.) Laser diagnostics in combustion. pp. 77 - 118. ISBN 10: 3902655038. ISBN 13: 9783902655035.

Bai, S., Li, G., Zhao, H. and Williams, DJR. (2009) 'Experiment Study of Stratified Combustion at Different Boost Pressure'.Asia-Pacific Power and Energy Engineering Conference (APPEEC). Wuhan, PEOPLES R CHINA. 1 - 31 March. IEEE. pp. 280. ISSN: 2157-4839

Kalian, N., Zhao, H. and Yang, C. (2009) 'Effects of spark-assistance on controlled auto-ignition combustion at different injection timings in a multicylinder direct-injection gasoline engine'. International Journal of Engine Research, 10 (3). pp. 133 - 148. ISSN: 1468-0874

Jagus, K., Jiang, X., Dober, G., Greeves, G., Milanovic, N. and Zhao, H. (2009) 'Assessment of large-eddy simulation feasibility in modelling the unsteady diesel fuel injection and mixing in a high-speed direct-injection engine'. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 223 (8). pp. 1033 - 1048. ISSN: 0954-4070

Lee, CY., Zhao, H. and Ma, T. (2009) 'Analysis of a cost effective air hybrid concept'.SAE World Congress & Exhibition. SAE International. ISSN: 0148-7191

Zhao, H. and He, BQ. (2008) 'High efficiency and low emission powertrain technologies for passenger cars'. Neiranji Xuebao Transactions of CSICE Chinese Society for Internal Combustion Engines, 26 (SUPPL.). pp. 68 - 76. ISSN: 1000-0909

Kalian, N., Zhao, H. and Qiao, J. (2008) 'Investigation of transition between spark ignition and controlled auto-ignition combustion in a V6 direct-injection engine with cam profile switching'. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 222 (10). pp. 1911 - 1926. ISSN: 0954-4070 Open Access Link

Kalian, N. and Zhao, H. (2008) 'Effects of extended exhaust and intake duration on CAI combustion in a multi-cylinder di gasoline engine'. Institution of Mechanical Engineers Combustion Engines and Fuels Group Internal Combustion Engines Performance Fuel Economy and Emissions. pp. 303 - 315.

McWilliam, L., Megaritis, A. and Zhao, H. (2008) 'Experimental Investigation of the Effects of Combined Hydrogen and Diesel Combustion on the Emissions of a HSDI Diesel Engine'.SAE International Powertrains, Fuels and Lubricants Congress. Shanghai, China. 25 - 25 June. SAE International. ISSN: 0148-7191

Li, Y., Zhao, H. and Brouzos, N. (2008) 'CAI combustion with methanol and ethanol in an air-assisted direct injection SI engine'.SAE International Powertrains, Fuels and Lubricants Congress. Shanghai, China. 23 SAE International. ISSN: 0148-7191 Open Access Link

Cao, L., Zhao, H. and Jiang, X. (2008) 'Analysis of controlled auto-ignition/HCCI combustion in a direct injection gasoline engine with single and split fuel injections'. Combustion Science and Technology, 180 (1). pp. 176 - 205. ISSN: 0010-2202 Open Access Link

Zhao, H. and Zhang, S. (2008) 'Quantitative measurements of in-cylinder gas composition in a controlled auto-ignition combustion engine'. Measurement Science and Technology, 19 (1). pp. 015409 - 015409. ISSN: 0957-0233

Martins, M. and Zhao, H. (2008) '4-stroke multi-cylinder gasoline engine with controlled auto-ignition (CAI) combustion: A comparison between naturally aspirated and turbocharged operation'.2008 SAE Brasil Congress and Exhibit. SAE International. ISSN: 0148-7191

Gill, K. and Zhao, H. (2008) 'In-cylinder studies of fuel injection and combustion from a narrow cone fuel injector in a high speed single cylinder optical engine'.2008 SAE International Powertrains, Fuels and Lubricants Congress. SAE International. ISSN: 0148-7191

Zhou, N., Xie, H., Li, N., Chen, T. and Zhao, H. (2008) 'Study on layered close loop control of 4-Stroke Gasoline HCCI engine equipped with 4VVAS'.SAE World Congress & Exhibition. SAE International. ISSN: 0148-7191

Li, Z., Xie, H. and Zhao, H. (2008) 'Studies of the control of in-cylinder inhomogeneities in a 4VVAS gasoline engine'.SAE World Congress & Exhibition. SAE International. ISSN: 0148-7191

Zhao, H. (2007) 'Four-stroke CAI engines with residual gas trapping', inHcci and Cai Engines for the Automotive Industry. Elsevier. pp. 103 - 135. ISBN 13: 9781845691288.

Zhao, H. (2007) 'Outlook and future directions in HCCI/CAI engines', inHcci and Cai Engines for the Automotive Industry. Elsevier. pp. 507 - 509. ISBN 13: 9781845691288.

Zhao, H. (2007) 'Overview of CAI/HCCI gasoline engines', inHcci and Cai Engines for the Automotive Industry. Elsevier. pp. 21 - 42. ISBN 13: 9781845691288.

Zhao, H. (2007) 'Motivation, definition and history of HCCI/CAI engines', inHcci and Cai Engines for the Automotive Industry. Elsevier. pp. 3 - 18. ISBN 13: 9781845691288.

Zhao, H. (2007) 'HCCI and CAI engines for the automotive industry'. Woodhead Publishing Limited. ISSN 13: 9781845691288

Zhao, H. and Zhang, S. (2007) 'Spontaneous Raman scattering for simultaneous measurements of in-cylinder species'.3rd International Conference on Optical and Laser Diagnostics (ICOLAD 2007). London, UK. 22 - 25 May. IOP Publishing. pp. 012006 - 012006. ISSN: 1742-6588 Open Access Link

Li, Y., Zhao, H., Brouzos, N. and Leach, B. (2007) 'Managing controlled auto-ignition combustion by injection on a direct-injection gasoline engine'. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 221 (9). pp. 1125 - 1137. ISSN: 0954-4070

Leach, B., Zhao, H., Li, Y. and Ma, T. (2007) 'Two-phase, fuel distribution measurements in a gasoline direct injection engine with an air-assisted injector using advanced optical diagnostics'. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 221 (6). pp. 663 - 673. ISSN: 0954-4070

Jiang, X., Zhao, H. and Luo, KH. (2007) 'Direct computation of perturbed impinging hot jets'. Computers and Fluids, 36 (2). pp. 259 - 272. ISSN: 0045-7930

Sison, K., Ladommatos, N., Song, HW. and Zhao, H. (2007) 'Soot generation of diesel fuels with substantial amounts of oxygen-bearing compounds added'. Fuel, 86 (3). pp. 345 - 352. ISSN: 0016-2361

Valentino, M., Jiang, X. and Zhao, H. (2007) 'A comparative RANS/LES study of transient gas jets and sprays under diesel conditions'. Atomization and Sprays, 17 (5). pp. 451 - 472. ISSN: 1044-5110

Wang, T., Peng, Z., Liu, SL., Xiao, HD. and Zhao, H. (2007) 'Optimization of stratification combustion in a spark ignition engine by double-pulse port fuel injection'. Proceedings of the Institution of Mechanical Engineers Part D Journal of Automobile Engineering, 221 (7). pp. 845 - 857. ISSN: 0954-4070

Martins, M. and Zhao, H. (2007) 'Experimental studies of a 4-stroke multi-cylinder gasoline engine with controlled auto-ignition (CAI) combustion'.SAE Brasil 2007 Congress and Exhibit. SAE International. ISSN: 0148-7191

Zhang, Y., Xie, H., Zhou, N., Chen, T. and Zhao, H. (2007) 'Study of SI-HCCI-SI transition on a port fuel injection engine equipped with 4VVAS'.SAE World Congress & Exhibition. SAE International. ISSN: 0148-7191

Jiang, X., Zhao, H. and Luo, KH. (2007) 'Direct numerical simulation of a non-premixed impinging jet flame'. Journal of Heat Transfer, 129 (8). pp. 951 - 957. ISSN: 0022-1481

Cao, L., Zhao, H. and Jiang, X. (2007) 'Investigation into controlled auto-ignition combustion in a GDI engine with single and split fuel injections'.SAE World Congress & Exhibition. SAE International. ISSN: 0148-7191

Sterno, N., Greeves, G., Tullis, S., Jiang, X. and Zhao, H. (2007) 'Improvements of the KIVA dense spray modeling for HSDI diesel engines'.2007 Fuels and Emissions Conference. SAE International. ISSN: 0148-7191

Li, Y., Zhao, H., Brouzos, N. and Ma, T. (2007) 'Parametric study on CAI combustion in a GDI engine with an air-assisted injector'.SAE World Congress & Exhibition. SAE International. ISSN: 0148-7191

Li, Y., Zhao, H. and Ma, T. (2007) 'Developing a fuel stratification concept on a spark ignition engines'.SAE World Congress & Exhibition. SAE International. ISSN: 0148-7191

Li, Y., Zhao, H. and Ma, T. (2006) 'Stratification of fuel for better engine performance'. Fuel, 85 (4). pp. 465 - 473. ISSN: 0016-2361

Jiang, X., Zhao, H. and Cao, L. (2006) 'Numerical simulations of the flow and sound fields of a heated axisymmetric pulsating jet'. Computers and Mathematics with Applications, 51 (3-4). pp. 643 - 660. ISSN: 0898-1221

Zhu, Y. and Zhao, H. (2006) 'Computational study of the effects of the throat diameter of the piston bowl for the performance and emissions of a high-speed direct-injection diesel engine'. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 220 (1). pp. 111 - 124. ISSN: 0954-4070

Cao, L., Zhao, H., Jiang, X. and Kalian, N. (2006) 'Numerical investigation into effect of fuel injection timing on CAI/HCCI combustion in a four-stroke GDI engine'. International Journal for Computational Methods in Engineering Science and Mechanics, 7 (1). pp. 41 - 57. ISSN: 1550-2287

Sterno, N., Greeves, G., Tullis, S., Jiang, X. and Zhao, H. (2006) 'Simulation of the air/fuel mixing of an HSDI diesel engine. Part 1: a new dense spray vapour coupling submodel'. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 220 (12). pp. 1793 - 1805. ISSN: 0954-4070

Jiang, X., Zhao, H. and Luo, KH. (2006) 'Direct simulations of a transitional unsteady impinging hot jet', in Lamballais, E., Friedrich, R., Geurts, BJ. and Metais, O. (eds.) Direct and Large-Eddy Simulation VI. Springer Netherlands. , 10. pp. 487 - 494. ISBN 10: 1-4020-4909-9. ISBN 13: 9781402049095.

Li, Y., Zhao, H., Brouzos, N., Ma, T. and Leach, B. (2006) 'Effect of injection timing on mixture and CAI combustion in a GDI engine with an air-assisted injector'.SAE 2006 World Congress & Exhibition. SAE International. ISSN: 0148-7191

Zhang, Y., He, BQ., Xie, H. and Zhao, H. (2006) 'The combustion and emission characteristics of ethanol on a port fuel injection HCCI engine'.SAE 2006 World Congress & Exhibition. SAE International. ISSN: 0148-7191

Cao, L., Zhao, H., Jiang, X. and Kalian, N. (2006) 'Investigation into the effect of injection timing on stoichiometric and lean CAI operations in a 4-stroke GDI engine'.SAE 2006 World Congress & Exhibition. SAE International. ISSN: 0148-7191

Xie, H., Hou, S., Qin, J., Zhang, Y., Li, N. and Zhao, H. (2006) 'Control strategies for steady and transient operation of a 4-Stroke gasoline engine with CAI combustion using a 4-Variable Valve Actuating System (4VVAS)'.SAE 2006 World Congress & Exhibition. SAE International. ISSN: 0148-7191

Xie, H., Wei, Z., He, B. and Zhao, H. (2006) 'Comparison of HCCI combustion respectively fueled with gasoline, ethanol and methanol through the trapped residual gas strategy'.SAE 2006 World Congress & Exhibition. SAE International. ISSN: 0148-7191

Peng, Z., Zhao, H., Ma, T. and Ladommatos, N. (2005) 'Characteristics of homogeneous charge compression ignition (HCCI) combustion and emissions of n-heptane'. Combustion Science and Technology, 177 (11). pp. 2113 - 2150. ISSN: 0010-2202 Open Access Link

Li, Y., Zhao, H. and Ma, T. (2005) 'Flow and mixture optimization for a fuel stratification engine using PIV and PLIF techniques'.2nd International Conference on Optical and Laser Diagnostics. London, UK. 11 - 14 September. IOP Publishing. pp. 59 - 68. ISSN: 1742-6588

Cao, L., Zhao, H., Jiang, X. and Kalian, N. (2005) 'Mixture formation and controlled auto-ignition combustion in four-stroke gasoline engines with port and direct fuel injections'. International Journal of Engine Research, 6 (4). pp. 311 - 330. ISSN: 1468-0874

Zhu, Y., Zhao, H. and Ladommatos, N. (2005) 'Computational fluid dynamics study of the effects of the re-entrant lip shape and toroidal radii of piston bowl on a high-speed direct-injection diesel engine's performance and emissions'. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 219 (8). pp. 1011 - 1023. ISSN: 0954-4070