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A hybrid experiment to operate simultaneously an air shower array, a hadron calorimeter and an emulsion chamber is under way at Mt Chacaltaya (5200 m, Bolivia). An event with a halo, a blackened area of ~1 cm on x-ray film of the emulsion chamber, was observed with the experiment. Information about the halo (E_halo = 850 TeV) and on high energy particles of electromagnetic and hadronic components outside the halo (∑E_γ = 632.5 TeV and ∑E^(γ)_h = 278.8 TeV with a detection threshold of 2 TeV) was obtained from emulsion chamber data. Details about low energy hadrons were determined from the hadron calorimeter data, and characteristics of the accompanying air shower (N_e = 7.0 × 10⁷, s = 0.59) were determined by the air shower array. We reconstruct the event, based on the observed data. The event is compared with simulated events, which supports the conclusion that nuclear interactions change their characteristics in the high energy region so as to result in stronger energy subdivision.

This nor Loposea. a nov construction for resource allocation problem(RA-Problem). A new PA-problem concidering both job sequence and Material flow in given and solved. Job sequence and material flow are expressed as a network model. This paper also proposes an identification method for PERT arrow-digram, which is the most simplified network model. The proposed identification method is heuristic, but it can evaluate the validity of identified values. An example is also given where the proposed methods were applied in the designing of n warehouse system.

It is strongly desired in factory automation that control software is easily and immediately developed and modified. To meet this requirement, we have developed a new type of control software system called Rule-Based Control Software System for factory automation. In this software system, "IF(conditions)-THEN(conclusions)" rule style is adopted to describe the control logics, because it is well suited to the nonprocedural manner of control logics and make it simple to describe them. And, control actions are deduced from system components' states by using forward inference method. In this paper, rule correctness check support software and a response-time estimation formula in the Rule-Based Control Software System are explaind.