TY - SER AU - Gao, J. AU - Matsumoto, Y. AU - Namba, M. AU - Nishida, K. TI - An Investigation of Mixture Formation and In-Cylinder Combustion Processes in Direct Injection Diesel Engines Using Group-Hole Nozzles KW - Fuel Spray KW - Diesel Engine KW - Laser Absorption Scattering (Las) ER -