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경혈 조사를 중심으로 본 고출력 Yttrium Aluminum Garnet (YAG) 레이저의 활용
이마음 ( Maeum Lee ),최유민 ( Yoomin Choi ),안수빈 ( Subin Ahn ),이기향 ( Gihyang Lee ),이은희 ( Eunhee Lee ),임명진 ( Myungjin Yim ),서형식 ( Hyung-sik Seo ),황의형 ( Eui-hyoung Hwang ),장인수 ( Insoo Jang ) 경락경혈학회 2023 Korean Journal of Acupuncture Vol.40 No.4
Objectives : The purpose of this study is to investigate on the application of the yttrium aluminum garnet (YAG) lasers for acupoints irradiation. Methods : We conducted a systematic search for peer-reviewed studies published from inception to November 2023, in the following electronic databases: PubMed, Scopus, and Web of Science in English, Science ON, Oriental Medicine Advanced Searching Integrated System (OASIS) and Research Information Sharing Service (RISS) in Korean, and China National Knowledge Infrastructure (CNKI) and Wanfang in Chinese, and Japan Science Technology Information Aggregator, Electronic (J-STAGE) and Citation Information by NII (CiNii) in Japanese. Inclusion criteria were original articles including clinical and experimental studies related with YAG lasers for acupoints including Ashi or meridian sinews. Results : Among the 8 selected studies, there were 7 studies on human subjects and 1 study on animals, 7 studies on Nd:YAG (1,064 nm) laser, and 1 study on Er:YAG (2,940 nm) laser. A total of 16 acupoints were used, 15 of which were in the face and 1 of which was located in the foot. In addition, there were two studies using Ashi. 4 studies looked at the effect of pain relief, 2 studies looked at safety, 1 study looked at changes in blood flow, and 1 study looked at the effect of skin care. There were no reported adverse events, and the YAG laser was confirmed to be safe and effective in pain relief, beautifying the skin, and increasing blood flow. Conclusions : We suggest that high intensity YAG lasers can be applied to laser acupuncture or laser moxibustion. YAG lasers are considered to be worth using for various clinical indications of Korean medicine because of photobiomodulation effects, analgesic action, and deep penetration depth. Further scientific research and clinical evidences should be warranted.
기능 검증을 위한 자동차용 스마트 키 ECU 소프트웨어의 모델링
최유민(Yoomin Choi),임동진(Dongjin Lim),이주현(Juhyun Lee) 한국자동차공학회 2015 한국자동차공학회 학술대회 및 전시회 Vol.2015 No.11
Developing and testing embedded software for a smart key ECU(Electronic Control Unit) is a very difficult task since it is one of the most complex systems in automotive body control system. In this paper, a UML(Unified Modeling Language) modeling of a smart key ECU software is proposed. This software model can be used to verify the validity of the specification and to generate test cases for testing embedded software. In this study, the UML tool which is capable of automatic code generation is used. Using this tool, it is possible to perform simulations of virtual prototype in the early stage of development. In the later stage of development, this model can also be used to generate test cases to test embedded software. It is believed that the software model proposed in this paper can contribute to enhancing the reliability of smart key ECU software.
이성환(Seounghwan Lee),라광열(Kwangyouel Raa),최준영(Joonyoung Choe),이광호(Kwangho Lee),안유민(Yoomin Ahn),조남규(Namgyoo Cho),황승용(Seungyong Hwang) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.5
A system for the electrical bio signal detection for a microchip is proposed. Gold nanoparticles were selected for the system for their bio-compatibility and potential for higher sensitivity with large surface areas. For the estimation of the conductivity of gold nanoparticles, microchips with interdigitated microelectrodes of 3, 5, 7 and 9㎛ spacing were fabricated. In addition, a simulation program was developed to estimate the electrical resistance of the fabricated microchip. The results of conduction simulation for the nanoparticles show good agreement s with experimental data, which validate the proposed system.
이경은,정선형,정민정,최유민,송미덕,장인수,Lee, Kyoungeun,Jeong, Seonhyung,Jeong, Minjeong,Choi, Yoomin,Song, Mideok,Jang, Insoo 대한한방내과학회 2021 大韓韓方內科學會誌 Vol.42 No.1
Objective: The purpose of this study was to collect and evaluate evidence of herbal medicine treatments for the residual effects of COVID-19. Methods: Nine electronic databases, namely PubMed, Science Direct, CINAHL, CNKI, Wanfang, J-STAGE, CiNii, OASIS, and Science ON, were searched with the following keywords: 'COVID-19'; 'sequelae'; 'Convalescence' for 'P (Population)' and 'Medicine, Chinese Traditional'; 'Korean medicine'; 'Herbal medicine' for 'I (Intervention)'. For the selected studies, various clinical data were extracted including patient symptoms, pattern identification, herbal medicines prescribed, and treatment results. Results: A total of nine clinical studies were identified (two case control trials; one case series; and six case reports). Various residual symptoms had been detected in the recovery stage of COVID-19 with the most commonly used pattern identifications being deficiency in both lung and spleen and in both qi and yin. Any herbal medicine prescriptions were written using these patterns. We found several reports of the positive effect of herbal medicines in that it improved symptoms, lung function, and lung inflammation. No adverse events were reported. Conclusions: The results indicate that treatment with herbal medicines has a possible therapeutic effect on the residual symptoms of COVID-19. Large-scale studies are necessary to confirm the effectiveness of these approaches.