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복어독(Tetrodotoxin, TTX)과 관련된 국내 변사사건의 특성에 대한 고찰 및 제언
정인남(Jeong, In Nam),이혜지(Lee, Hye Ji),최성운(Choi, Sung Woon) 경찰대학 경찰학연구편집위원회 2018 경찰학연구 Vol.18 No.1
매년 복어와 관련된 사망사고가 발생하고 있다. 사망사고가 발생하는 이유는 복어에 대한 잘못된 지식이나 독성의 위험성을 간과하는 등 여러 가지로 나타난다. 문제는 사망사고가 발생할 경우, 신체의 특이점을 쉽게 발견하기가 어렵다는 것이다. 복어독의 섭취방법과 섭취량에 따라 중독 증상 발현 시간이 다르기 때문에 쉽게 알아차리기도 어렵다. 이러한 이유로 천연독물의 위험성과 변사사건 처리 시 주의점을 제시하여 천연독물에 대한 이해와 수사상의 경각심을 높이고자 한다. 특히, 천연독물 중 일반음식점에서도 쉽게 찾아볼 수 있는 복어독을 중심으로 약 10년간 경찰에서 조사했던 사건들의 통계 및 특성을 확인하였다. 결론에서는 현장 조사 및 검시 상황에서의 주의사항과 이와 관련된 분석정책변경 등의 필요성을 제시하였다. Humans frequently come into contact with buffer fish as food material, in which contain natural toxins. Although toxins from puffer fish can show toxicity within a certain period of time after ingestion, the consumption of a lethal dose of toxins can lead humans to death. In the case of unnatural death, it is difficult to distinguish the accidental, unintentional death by toxin ingestion from intentional death because the changes and the signs of the deceased body due to the consumption of natural toxic substance is not clearly shown. Here we analyzed and discussed the characteristics of unusual deaths associated with puffer fish poisoning in Korea. In this study, we analyzed the incidents of puffer fish poisoning reported in scientific crime analysis system (SCAS) of Korea for 10 years from January 1, 2006 to December 31, 2015. We analyzed the basic information of the deceased who died by puffer fish poisoning and specific poisoning signs. To further investigate the relationship between the unnatural death and puffer fish poisoning, the feature of the area, place where the poisoning happened and puffer fish consumption according to the type of death were examined. The reason for the lack of detection of natural toxins in the accidental poisoning case is related not only to the low incidence rate and lacking distinguishable bodily signs but also to the policy of the toxicant inspection administered by the National Forensic Service. Scientific investigators may request additional toxicology testing related to natural toxins for the Department of Toxicology, also need access for the crime scene with proper understanding of natural toxins.
Characteristics of Interruption Ability in DC Circuit Breaker using Superconducting Coil
In-Sung Jeong(정인성),Hye-Won Choi(최혜원),Jeong-Il Youn(윤정일),Hyo-Sang Choi(최효상) 대한전기학회 2019 전기학회논문지 Vol.68 No.1
Development of DC interruption technology is being studied actively for enhanced DC grid reliability and stability. In this study, coil type superconductor DC circuit breaker was proposed as DC interruption. It is integration technology that combined current-limiting technique using superconductor and cut-off technique using mechanical DC circuit breaker. Superconductor was applied to the coil type. In simulation, Mayr arc model was applied to realize the arc characteristic in the mechanical DC circuit breaker. PSCAD/EMTDC had used to model and perform the simulation. To find out the protection range of coil type superconductor DCCB, the working operation have analyzed based on the rated voltage of DCCB. The results confirmed that, according to apply the limiting device, the protection range was increased in twice. Therefore, the probability of failure of interruption has lowered significantly.
반려동물 사별에 따른 지속비애 예방을 위한 서비스 디자인 제안
이해인(Lee, Hae in),김정녕(Kim, Jeong nyeong),이지혜(Lee, Ji hye),문정인(Moon, Jeong in),이연준(Lee, Youn joon) 한국디자인문화학회 2023 한국디자인문화학회지 Vol.29 No.4
As the number of households raising pets continues to increase, the need for bereavement preparation, which inevitably comes with pet ownership, has emerged. However, there is a lack of services to support this need. Therefore, this study aims to propose a service that assists pet owners in their proper mourning process through systematic bereavement preparation and prevents the experience of prolonged grief. Through literature research, the characteristics of the grieving process, prolonged grief, and the factors influencing prolonged grief when a pet is lost were analyzed. In-depth interviews were conducted with individuals who have experienced the loss of a pet to analyze the stages of grief and identify their main needs. Based on the analysis of these interviews, service concepts and core features were derived, proposing four key functionalities: ‘Recording daily life with your pet’, ‘Engaging in interactive activities with your pet’, ‘Recalling memories with your pet’, and ‘Writing a letter to your pet’. The service concept and core functions were validated through feedback from pet owners, confirming the necessity of the service and identifying areas for improvement. This study is significant in its integration of the pre- and post-grief experiences of pet owners, providing systematic bereavement preparation to facilitate an appropriate mourning process and prevent prolonged grief. Building on the direction of the study to offer a more fundamental solution to the loss and prolonged grief experienced by pet owners after the loss of a pet, we hope for the continued development of diverse services in the future.