A photographic study of a hydrogen chloride gas jet reacting in an aqueous solution of ammonia was conducted. The high-speed motion pictures taken revealed that the behavior of the reacting gas jet was highly dynamic and complex. The gaseous jet penetration (''plume'') was not stationary, but underwent a change in shape and size with time, which appeared to be periodic or cyclic. Certain observations made, including a high-pitched sound, exhibited a striking similarity to the so-called ''singing flame'' phenomenon. Such dynamic plume behavior is attributed to the vaporization of the bath liquid due to reaction heat release. The plume length measurements for large concentrations of ammonia seem to confirm the prediction that when the extent of vaporization is large, the plume length is mainly determined by the distance required for condensation of the vapor.

Report of various activities in Argonne National Laboratory Physics Division including medium-energy physics research, research at ATLAS, theoretical nuclear physics, superconducting LINAC development, and accelerator operations.

Abstract: The Symposium on Real-Time Optimization in Automated Manufacturing Facilities was held at the National Bureau of Standards, Gaithersburg, Maryland, January 21-22, 1986. It was jointly sponsored by the Center for Manufacturing Engineering (with funds obtained from the Navy Manufacturing Technology Program) and the Center for Applied Mathematics. It was designed to bring together those who design and test optimization procedures for solving planning, scheduling, and routing problems with those who must use these procedures in a real-time manufacturing environment. Included in the proceedings are discussions of the following topics: an approach to hierarchical production planning and scheduling; a hierarchy of intelligent scheduling and control for automated manufacturing systems; the integration of planning scheduling, and control for automated manufacturing; intelligent manufacturing planning systems; a decision making framework for manufacturing systems; PATRIARCH -- hierarchical production scheduling; low-level interactive scheduling; the general employee scheduling problem: an effective large scale solution approach; ISIS project in review; dynamic control in automated manufacturing: a knowledge integrated approach; a management control approach to the manufacturing, planning, and scheduling problem; hierarchies of sub-periods in constraint-directed scheduling; a two-level planning and scheduling approach for computer integrated manufacturing; match-up real-time scheduling; a maximal covering model for loading flexible manufacturing …

Abstract: Contained herein are bibliographies of Sources of experimental and correlated thermodynamic data for seven binary aqueous mixtures of industrial importance, namely mixtures of CO2, H2S, NH3, H2S0, H3P4, CuCl2 and ZnCl2 with water. The categories of equilibrium data included in the bibliographies are activity and osmotic coefficients, equilibria in solution, enthalpies and heat capacity data, vapor-liquid equilibria, and phase equilibrium data.

Report that includes summaries of sessions and papers presented at a workshop on "Environment and Resources of Seamounts in the North Pacific," held March 21-23, 1984 at the Orido Community Center near the Far Seas Fisheries Research Laboratory and the Government Port Building in Shimizu, Japan.