TY - SER TI - Journal of The Hydraulics Division. Vol. 99 No. 6 (1973) PY - 0000///[date of publication not identified] CY - New York : American Society of Civil Engineers. N1 - It contains of Papers, Technical Note and Discussions on June 1973 in Vol. 99 No. 6; Discrete Gradient Optimization of Water Systems / Chan F. Lam. At-Stream-Velocity Pumping Sediment Sampling System / James P. Bennett. River Systems Transition Function and Operation Study / Chin-shu Liu. Friction Factor and Reynolds Number in Porous Media Flow / Anat Arbhabhirama and Antonio A. Dinoy. Finite Element Solution for General Fluid Motion / Gary L. Guymon. Comparison of Bridge Backwater Relations / Gaylord V. Skogerboe, J. W. Hugh Barrett, Wynn R. Walker and Lloyd H. Austin. Accelerated Motion of a Spheroid in Viscous Fluid / Robert Y. S. Lai. Free-Surface Ideal Fluid Flows by Finite Elements / Stevens T. K. Chan, Bruce E. Larock, and Leonard R. Hermann. DISCUSSION : Proc. Paper 9760 - Sediment Transportation Mechanics: F. Hydraulic Relations for Alluvial Streams / the Task Committee for Preparation of the Sedimentation Manual, Committee on Sedimentation of the Hydraulics Division (Jan., 1971. Prior Discussions: Oct., Nov., Dec., 1971). Closure. Dispersion in Natural Streams / Mahendra K. Bansal (Nov., 1971. Prior Discussions: May, June, Dec., 1972). Closure. Siphons: Some Scale-Effects in Models / Richard B. Whittington and Kamil H. M. Ali (Jan., 1972. Prior Discussions: Dec., 1972, April, 1973). Closure. Spillway Gate Vibrations on Arkansas River Dams / Tasso Schmidgall (Jan., 1972. Prior Discussion: Dec., 1972). Closure. Unit Stream Power and Sediment Transport by Chih Ted Yang (Oct., 1972) / Gamett P. Williams ER -