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

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

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

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

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

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

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.

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

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

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

Su, WH., Lin, TJ., Zhao, H. and Pei, YQ. (2005) 'Research and development of an advanced combustion system for the direct injection diesel engine'. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 219 (2). pp. 241 - 252. ISSN: 0954-4070

Cao, L., Zhao, H., Jiang, X. and Kalian, N. (2005) 'Understanding the infiuence of valve timings on controlled autoignition combustion in a four-stroke port fuel injection engine'. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 219 (6). pp. 807 - 823. ISSN: 0954-4070

Li, Y., Zhao, H., Leach, B. and Ma, T. (2005) 'Development of a fuel stratification spark ignition engine'. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 219 (7). pp. 923 - 934. ISSN: 0954-4070

Leach, B., Zhao, H., Li, Y. and Ma, T. (2005) 'Control of CAI combustion through injection timing in a gdi engine with an air-assisted injector'.SAE 2005 World Congress & Exhibition. SAE International. ISSN: 0148-7191

Bhave, A., Kraft, M., Mauss, F., Oakley, A. and Zhao, H. (2005) 'Evaluating the EGR-AFR operating range of a HCCI engine'.SAE 2005 World Congress & Exhibition. SAE International. ISSN: 0148-7191

Standing, R., Kalian, N., Ma, T., Zhao, H., Wirth, M. and Schamel, A. (2005) 'Effects of injection timing and valve timings on CAI operation in a multi-cylinder di gasoline engine'.SAE 2005 World Congress & Exhibition. SAE International. ISSN: 0148-7191

Osborne, RJ., Stokes, J., Lake, TH., Carden, PJ., Mullineux, JD., Helle-Lorentzen, R., Evans, JC., Heikal, MR., Zhu, Y., Zhao, H. and Ma, T. et al. (2005) 'Development of a two-stroke/four-stroke switching gasoline engine - The 2/4SIGHT concept'.SAE 2005 World Congress & Exhibition. SAE International. ISSN: 0148-7191

Qin, J., Xie, H., Zhang, Y. and Zhao, H. (2005) 'A combustion heat release correlation for CAI combustion simulation in 4-stroke gasoline engines'.SAE 2005 World Congress & Exhibition. SAE International. ISSN: 0148-7191

He, BQ., Xie, H., Zhang, Y., Qin, J. and Zhao, H. (2005) 'An experimental study on HCCI combustion in a four-stroke gasoline engine with reduced valve lift operations'.Powertrain & Fluid Systems Conference & Exhibition. SAE International. ISSN: 0148-7191

Xie, H., Yang, L., Qin, J., Gao, R., Zhu, HG., He, BQ. and Zhao, H. et al. (2005) 'The effect of spark ignition on the CAI combustion operation'.Powertrain & Fluid Systems Conference & Exhibition. SAE International. ISSN: 0148-7191

Kalian, N., Standing, R. and Zhao, H. (2005) 'Effects of ignition timing on CAI combustion in a multi-cylinder di gasoline engine'.Powertrain & Fluid Systems Conference & Exhibition. SAE International. ISSN: 0148-7191

Cao, L., Zhao, H., Jiang, X. and Kalian, N. (2005) 'Numerical study of effects of fuel injection timings on CAI/HCCI combustion in a four-stroke GDI engine'.SAE 2005 World Congress & Exhibition. SAE International. ISSN: 0148-7191

Gill, K., Marriner, C., Sison, K. and Zhao, H. (2005) 'In-cylinder studies of multiple diesel fuel injection in a single cylinder optical engine'.SAE 2005 World Congress & Exhibition. SAE International. ISSN: 0148-7191

Ladommatos, N., Xiao, Z. and Zhao, H. (2005) 'The effect of piston bowl temperature on diesel exhaust emissions'. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 219 (3). pp. 371 - 388. ISSN: 0954-4070

Li, Y., Zhao, H., Leach, B. and Ma, T. (2004) 'Flow optimization and fuel stratification for the stratified fuel spark ignition engine'. International Journal of Engine Research, 5 (5). pp. 401 - 423. ISSN: 1468-0874

Man, KY., Zhao, H., Ma, T. and Oakley, AJ. (2004) 'Effect of fuel properties on CAI/HCCI combustion and emission in a 4-stroke gasoline engine'.International Conference on Which Fuels for Low CO2 Engines?. Rueil Malmaison, France. 22 - 23 September. EDITIONS TECHNIP. pp. 69 - 78.

Li, Y., Zhao, H., Leach, B., Ma, T. and Ladommatos, N. (2004) 'Characterization of in-cylinder flow structure in a high-tumble spark ignition engine'. International Journal of Engine Research, 5 (5). pp. 375 - 400. ISSN: 1468-0874

Song, H., Ladommatos, N. and Zhao, H. (2004) 'Morphology, size distribution, and oxidation of diesel soot'. Journal of the Energy Institute, 77 (511). pp. 26 - 36. ISSN: 1743-9671