• Proceedings of the Korean Society of Precision Engineering Conference
• /
• 2004.05a
• /
• pp.220-220
• /
• 2004

최근 들어 블리스터 포장방식은 제품을 뜯어보지 않고 제품을 확인할 수 있는 장점을 가지고 있어 여러 가지 상품포장에 이용되고 있다. 대부분의 건전지의 포장 역시 블리스터방식을 이용하여 포장을 하고 있다 그런데 카메라 및 각종 휴대용 전자장치에서 널리 사용되고 있는 리튬전지의 경우에서는 전지 자체가 가지고 있는 폭발위험성 때문에 블리스터 포장을 할 때 각별한 주의가 필요하다. 그러나 국내를 비롯한 국외에서도 일반 알카라인 전지 포장기계를 구조 변경하여 사용하고 있고 리튬전지 특성을 고려한 리튬전지 전용 블리스터 포장기는 개발되지 않고 있다.(중략)

• The monthly packaging world
• /
• s.10
• /
• pp.76-81
• /
• 1994

• The monthly packaging world
• /
• s.233
• /
• pp.88-91
• /
• 2012

• Journal of the Korean Society for Nondestructive Testing
• /
• v.23 no.4
• /
• pp.334-341
• /
• 2003

When the pressure tubes(f are in contact with the calandria tube(CT) in the pressurized heavy water reactor(PHWR), the temperature difference between inner and outer wall of W results in a thermal diffusion of hydrogen (deuterium) and hydride blisters are formed on the outer surface of PT. Because the hydride blisters and zirconium matrix are acoustically continuous, it is not easy to distinguish the blisters from the matrix with conventional ultrasonic method. An ultrasonic velocity ratio method was developed to detect small hydride blisters on the zirconium pressure tube. Hydride blisters were grown in the PT specimen using a steady state thermal diffusion device. The flight times of longitudinal echo and reflected shear echo from the outer surface were measured accurately. The velocity ratio of the longitudinal wave to the shear wave was calculated and displayed using contour plot. Compared to the conventional flight time method of longitudinal wave, the velocity ratio method shows superior sensitivity to detect smaller blisters as well as better images for the blister shapes. Detectable limit of the outer shape of the hydride blisters was conservatively estimated as $500{\mu}m$, with the same specifications of ultrasonic transducer used in the actual PHWR pressure tube inspection.

• The monthly packaging world
• /
• s.170
• /
• pp.92-97
• /
• 2007

• The monthly packaging world
• /
• s.241
• /
• pp.71-75
• /
• 2013

• The monthly packaging world
• /
• s.128
• /
• pp.114-115
• /
• 2003

• Journal of the Korean Society of Manufacturing Technology Engineers
• /
• v.22 no.2
• /
• pp.235-240
• /
• 2013

This paper presents a disposable microfluidic infusion pump using the restoring force of elastomeric membrane of Polydimethylsiloxane. Microfluidic infusion pump consists of hydraulic resistance control part, elastomeric blister actuator part, drug inlet and outlet. Expanded elastomeric blister actuator continuously pushes liquid in the chamber to outlet. At same time, microchannel diameter near the outlet was controlled by thin elastomeric membrane in hydraulic resistance control part. Eventually flow rate of infused liquid is controlled by air pressure. In experimental study, the amount of the filled liquid in the blister is precisely controlled by the height of the blister. Flow rate of infused liquid could be controlled, that is, controlled release of the drug over time was possible by adjusting hydraulic resistance and restoring pressure with the blister actuator.

• Proceedings of the Korea Technical Association of the Pulp and Paper Industry Conference
• /
• 2006.04a
• /
• pp.179-185
• /
• 2006

• Proceedings of the Korea Technical Association of the Pulp and Paper Industry Conference
• /
• 2005.11a
• /
• pp.235-241
• /
• 2005