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냉동 수산물의 저장 온도 관리를 위한 Time-temperature Indicator와 비전 기반 Indicator 분석 프로그램 개발
장명기 ( Myung-kee Jang ),홍창욱 ( Chang-wook Hong ),최재혁 ( Jae-hyuk Choi ),김꽃봉우리 ( Koth-bong-woo-ri Kim ),최정욱 ( Jeong-wook Choi ),남택정 ( Taek-jeong Nam ),안동현 ( Dong-hyun Ahn ) 한국수산과학회(구 한국수산학회) 2018 한국수산과학회지 Vol.51 No.1
We develop a time-temperature indicator (TTI) that can determine whether thawing of fish and other fishery products has occurred during frozen storage. A polypropylene tube with an internal diameter of 3 mm was prepared and cut to a length of 14 to 20 mm. One end of the tube was thermally sealed and 0.1% acetic acid was injected into the other end; the tube was then frozen at 20℃. Then the open side of the frozen tube was blocked by sinking the tube into a 10% gelatin solution. The tube was attached to a polyvinyl packaging bag along blue litmus paper and the bag was put into a freezer at -20℃. After freezing, the bag was removed to an ambient temperature of 20℃, and the time dependence of the color change of the litmus paper was observed. The color changed from blue to red, with the length of the red region increasing with time. Our TTI can be used as a part of a visible detection system and the detection program can conduct the elapsed time analysis on the length of the red region of the litmus paper indicating the degree of thawing. Thus, the TTI is a useful tool in the temperature management of frozen fish and fishery products.
냉동 고등어(Scomber japonicus)의 유통 온도 관리를 위한 Time-temperature Indicator 개발
최정욱 ( Jeong-wook Choi ),이민경 ( Min-kyeong Lee ),최재혁 ( Jae-hyuk Choi ),장명기 ( Myung-kee Jang ),안동현 ( Dong-hyun Ahn ),남택정 ( Taek-jeong Nam ) 한국수산과학회(구 한국수산학회) 2018 한국수산과학회지 Vol.51 No.5
We developed a time-temperature indicator (TTI) that rapidly determines whether frozen mackerel Scomber japonicus has thawed during its distribution. Our TTI was made from filter paper capable of absorbing mackerel exudate that was soaked in a 20% citric acid solution at pH 4.0 and then dried. The dried absorbent paper was cut and attached to blue litmus paper with a 2 mm overhang. The fixed litmus paper was covered with a polypropylene film and sealed. The indicator was placed inside a polyvinyl vacuum package containing the mackerel sample. The vacuum-sealed packaged was frozen at -20℃ for 24 h. After freezing, the color change and time dependence of the indicator were observed at room temperature (25℃) and demonstrated the utility of this TTI for rapidly determining whether frozen mackerel underwent thawing during distribution.
박태진(Tae-Jin Park),이운선(Un-Seon Lee),장명기(Myung-Kee Jang),석영태(Young-Tae Seok),강태형(Tea-Hyung Kang) 대한전자공학회 2010 대한전자공학회 학술대회 Vol.2010 No.6
The HMI(Human-Machine Interation) equipment which means "communication" between humans and machines that is spreading of the society with information and communication technologies. The characteristic of the existing HMI can describes information transmission device of an one-way. In information society of the day, The information of interactive and convergence that interaction robot system is demanding that is developed more in many areas. For this reason, the system will be occured high cost or difficulty for system development. Therefore, in order to solve this problem, we have proposed system configuration using C-HMI engine in this paper. The proposed system configuration in this paper that is to develop various application system of interactive robot but that it can be applied to various fields.