The patch clamp technique developed on the basis of voltage clamp and it enables to record electrical signals (channel current) from localized regions of membranes on cell through high resistance seals between patch pipette and cell membranes.

This paper presents the sitution about digestion and improvernent of the sealing Principle on high frequency sealer (Japan-made) during the eighties set on the production line of the high speed fermented Lactobacillaceac beverage.

Study on process control for high frequency welding based on expert system;

The micro-character of weld line in copper tubes with inner grooved by high frequency welding for air-conditionings and refrigerators was briefly studied,the existent manner and the reason of quality problem were found out,betterment measure was put forward and realized,the problem in the production was settled and the product quality became stable.

The high frequency welding procedure and its forming fundamental of spiral fin pipe is introduced.