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

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

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

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

Jiang, X., Zhao, H. and Cao, L. (2004) 'Direct computation of a heated axisymmetric pulsating jet'. Numerical Heat Transfer, Part A: Applications, 46 (10). pp. 957 - 979. ISSN: 1040-7782

Bhave, AN., Kraft, M., Zhao, H. and Mauss, F. (2004) 'Investigating the boundaries of a stable HCCI engine operation using a PDF-based engine cycle simulator'. International Symposium on Combustion Abstracts of Works in Progress Posters. pp. 264.

Zhu, Y., Zhao, H., Melas, DA. and Ladommatos, N. (2004) 'Computational study of the effects of the geometry of the piston bowl pip for a high-speed direct injection diesel engine'. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 218 (8). pp. 875 - 890. ISSN: 0954-4070

Zhao, H., Peng, Z. and Ma, T. (2004) 'Investigation of the HCCI/CAI combustion process by 2-D PLIF imaging of formaldehyde'.2004 SAE Fuels & Lubricants Meeting & Exhibition. SAE International. ISSN: 0148-7191

Zhu, Y., Zhao, H., Melas, DA. and Ladommatos, N. (2004) 'Computational study of the effects of the re-entrant lip shape and toroidal radii of piston bowl on a HSDI diesel engine's performance and emissions'.SAE 2004 World Congress & Exhibition. SAE International. ISSN: 0148-7191

Duret, P., Gatellier, B., Monteiro, L., Miche, M., Zima, P., Maroteaux, D., Guezet, J., Blundell, D., Spinnler, F., Zhao, H., Perotti, M. and Araneo, L. et al. (2004) 'Progress in diesel HCCI combustion within the european SPACE LIGHT project'.2004 SAE Fuels & Lubricants Meeting & Exhibition. SAE International. ISSN: 0148-7191

Cao, L., Zhao, H., Jiang, X. and Kalian, N. (2004) 'Effects of intake valve timing on premixed gasoline engine with CAI combustion'.2004 Powertrain & Fluid Systems Conference & Exhibition. SAE International. ISSN: 0148-7191

Li, Y., Zhao, H., Leach, B., Ma, T. and Ladommatos, N. (2004) 'In-cylinder measurements of fuel stratification in a twin-spark three-valve SI engine'.SAE 2004 World Congress & Exhibition. SAE International. ISSN: 0148-7191

Zhao, H. (2003) 'Optical diagnostics for internal combustion engines'. Institute of Physics Conference Series. pp. 63. ISSN: 0951-3248

Peng, Z., Zhao, H. and Ladommatos, N. (2003) 'Visualization of the homogeneous charge compression ignition/controlled autoignition combustion process using two-dimensional planar laser-induced fluorescence imaging of formaldehyde'. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 217 (12). pp. 1125 - 1134. ISSN: 0954-4070 Open Access Link

Li, Y., Zhao, H., Leach, B., Ma, T. and Ladommatos, N. (2003) 'Optimisation of in-cylinder flow for fuel stratification in a three-valve twin-spark-plug SI engine'.SAE 2003 World Congress & Exhibition. SAE International. ISSN: 0148-7191

Peng, Z., Zhao, H. and Ladommatos, N. (2003) 'Effects of air/fuel ratios and EGR rates on HCCI combustion of N-heptane, a diesel type fuel'.SAE 2003 World Congress & Exhibition. SAE International. ISSN: 0148-7191

Zhu, Y., Zhao, H. and Ladommatos, N. (2003) 'Computational study of the effects of injection timing, egr and swirl ratio on a HSDI multi-injection diesel engine emission and performance'.SAE 2003 World Congress & Exhibition. SAE International. ISSN: 0148-7191

Leach, B., Zhao, H., Li, Y., Ma, T., Ladommatos, N., Law, D. and Houston, R. et al. (2002) 'Characterization of in-cylinder fuel distribution from an air-assisted fuel injection system using advanced laser diagnostics'.Conference on Fuel Injection Systems. London, UK. 26 - 27 November. PROFESSIONAL ENGINEERING PUBLISHING LTD. pp. 159 - 172. ISSN: 1356-1448

Zhao, H., Li, J., Ma, T. and Ladommatos, N. (2002) 'Performance and analysis of a 4-stroke multi-cylinder gasoline engine with CAI combustion'.SAE World Congress & Exhibition. Detroit, Michigan, USA. 23 SAE International. ISSN: 0148-7191 Open Access Link

Ladommatos, N., Song, H. and Zhao, H. (2002) 'Measurements and predictions of diesel soot oxidation rates'. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 216 (8). pp. 677 - 689. ISSN: 0954-4070

Li, Y., Zhao, H. and Ladommatos, N. (2002) 'Analysis of large-scale flow characteristics in a four-valve spark ignition engine'. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 216 (9). pp. 923 - 938. ISSN: 0954-4062

Li, Y., Zhao, H., Peng, Z. and Ladommatos, N. (2002) 'Tumbling flow analysis in a four-valve spark ignition engine using particle image velocimetry'. International Journal of Engine Research, 3 (3). pp. 139 - 155. ISSN: 1468-0874

Li, Y., Zhao, H., Peng, Z. and Ladommatos, N. (2002) 'Particle image velocimetry measurement of in-cylinder flow in internal combustion engines - experiment and flow structure analysis'. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 216 (1). pp. 65 - 81. ISSN: 0954-4070

Ma, T., Zhao, H., Li, J. and Ladommatos, N. (2001) 'Experimental investigation of controlled auto-ignition (CAI) combustion in a 4-stroke multi-cylinder gasoline engine and drive cycle simulations'. New Generation of Engine Combustion Processes for the Future. pp. 115 - 124.

Oakley, A., Zhao, H., Ma, T. and Ladommatos, N. (2001) 'Dilution effects on the controlled auto-ignition (CAI) combustion of hydrocarbon and alcohol fuels'.SAE International Fall Fuels & Lubricants Meeting & Exhibition. San Antonio, Texas, USA. 24 SAE International. ISSN: 0148-7191 Open Access Link

Li, J., Zhao, H., Ladommatos, N. and Ma, T. (2001) 'Research and development of Controlled Auto-Ignition (CAI) combustion in a 4-stroke multi-cylinder gasoline engine'.SAE International Fall Fuels & Lubricants Meeting & Exhibition. San Antonio, Texas, USA. 24 SAE International. ISSN: 0148-7191 Open Access Link

Zhao, H. and Ladommatos, N. (2001) 'Engine Combustion Instrumentation and Diagnostics'. McFarland. ISSN 10: 0768006651 ISSN 13: 9780768006650

Zhao, H., Peng, Z. and Ladommatos, N. (2001) 'Understanding of controlled autoignition combustion in a four-stroke gasoline engine'. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 215 (12). pp. 1297 - 1310. ISSN: 0954-4070

Oakley, A., Zhao, H., Ladommatos, N. and Ma, T. (2001) 'Feasibility study of an online gasoline fractionating system for use in spark-ignition engines'.SAE 2001 World Congress. SAE International. ISSN: 0148-7191

Zhao, H., Peng, Z., Williams, J. and Ladommatos, N. (2001) 'Understanding the effects of recycled burnt gases on the controlled autoignition (CAI) combustion in four-stroke gasoline engines'.SAE 2002 World Congress & Exhibition. SAE International. ISSN: 0148-7191

Song, H., Ladommatos, N. and Zhao, H. (2001) 'Diesel soot oxidation under controlled conditions'.Spring Fuels & Lubricants Meeting & Exhibition. SAE International. ISSN: 0148-7191

Li, Y., Zhao, H., Peng, Z. and Ladommatos, N. (2001) 'Analysis of tumble and swirl motions in a four-valve SI engine'.SAE International Fall Fuels & Lubricants Meeting & Exhibition. SAE International. ISSN: 0148-7191

Oakley, A., Zhao, H., Ladommatos, N. and Ma, T. (2000) 'Experimental studies on Controlled Auto-ignition (CAI) combustion in a 4-stroke gasoline engine'.International Conference on 21st Century Emissions Technology. London, UK. 4 - 5 December. SAE International. pp. 163 - 174. ISSN: 0148-7191

Zhao, H., Williams, J., Damiano, L., Bryce, D., Ladommatos, N. and Ma, T. (2000) 'Development of a specially designed optical engine and laser diagnostics for stratified charge and controlled auto-ignition combustion studies'.International Conference on Computational and Experimental Methods in Reciprocating Engines. London, UK. 1 - 2 November. PROFESSIONAL ENGINEERING PUBLISHING LTD. pp. 151 - 165. ISSN: 1356-1448

Zhao, H., Hu, J. and Ladommatos, N. (2000) 'In-cylinder studies of the effects of CO2 in exhaust gas recirculation on diesel combustion and emissions'. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 214 (4). pp. 405 - 419. ISSN: 0954-4070

Ladommatos, N., Xiao, Z. and Zhao, H. (2000) 'Effects of fuels with a low aromatic content on diesel engine exhaust emissions'. Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 214 (7). pp. 779 - 794. ISSN: 0954-4070