Yasushi Saito

Studies on Lipase in Rat Brain

Lipase activity was measured in homogenates of rat cerebral hemispheres using radioactive glycerol trioleate emulsified with Triton X‐100 as substrate. The labeled oleic acid was separated from the ester with a methanol‐chloroform‐heptane mixture. Under these assay conditions, the activity showed pH optima at about 5.5 and 7.5. The final products of these lipase activities were suggested to be free fatty acid and glycerol.

Implementation Issues of the TACL/TULS Language System on BTRON

In the computer systems of the TRON Project, many interfaces are described with TULS (TRON Universal Language System). TACL (TRON Application Control-flow Language) is a language based on TULS which defines the protocol between the end user and the BTRON system. TACL can describe various programs such as batch programs, home automation control programs, and some application programs of BTRON. This TACL/TULS language system consists of four components: the TACL/TULS Manager, the Dictionary Manager, the TACL/TULS interpreter task, and the TACL/TULS program editor.

Multi-component granulation in a fast fluidized bed

The granulation of multi-component particles was conducted in a fast fluidized bed with an atomizing binder solution. The effects of gas velocity and binder droplet diameter on granulation rate, granule size distribution and granule composition were studied. The granulation rate and granule yield were determined by the balance between the agglomeration rate of feed particles and the disintegration rate of granules because there was no secondary granulation. With the increase in gas velocity and the reduction in binder droplet size, the agglomeration rate of feed particles decreased but the disintegration rate of granules increased, resulting in a reduced granule yield. Despite the larger fraction of small particles in the granules, the homogenous granulation of multi-component particles was achieved.