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김인건,남태훈,정익주,Kim, In-Geon,Nam, Tae-Hun,Chung, Ik-Joo 강원대학교 산업기술연구소 2013 産業技術硏究 Vol.33 No.1
The U-healthcare is increasingly important as there is a growing tendency for elderly people to acquire chronic disease such as heart problems and high blood pressure. In this paper, we implemented an oximeter which can interact and communicate with the smart devices such as smartphones through which users can manage their measuring data. The designed pulse oximeter is capable of detecting hemoglobin saturation levels in the range of 70-100% and the heart beat rate(BPM) in the range of 30-240 BPM.
보조 공기 압축기 내 BLDC전동기의 위치센서 오류 보상 제어
김인건(In-Gun Kim),홍현석(Hyun-Seok Hong),이주(Ju Lee) 대한전기학회 2015 전기학회논문지 Vol.64 No.11
Auxiliary air compressor(ACM) applied to railroad cars is a device which controls amount of compressed air in order that pantographs can be mounted correctly on the roof of an electric train. Existing ACMs consist of dc motors and brushes wear out due to friction with a commutator. Therefore, continuous maintenance is required. However, three phase BLDC motors have higher power density compared to dc motors and the machine maintenance is not needed because electric commutation is possible. The three phase generally uses hall sensors to get position information and this enables the accurate control. This paper suggests an algorithm that compensates the errors occurred when the hall sensors have a breakdown for stable operation.
김인건,김진환,오갑성,김석화 大韓成形外科學會 1991 Archives of Plastic Surgery Vol.18 No.6
열성 유전형 이영양성 표피수포증에서 생긴 심한 수부기형을 수술로 교정하여 좋은 결과를 얻었으며 이를 위해서는 수술전후 환자의 전처치(total care)와 질병에 대한 교육이 필요하며 수술로 표피고치를 장갑벗기듯이 조심스럽게 벗기면 쉽게 제거되고(epidermal degloving), 구축을 완전히 펴지도록 하며 피부이식술과 적절한 고정이 필요하다. 술후 장기간 부목을 착용시키고, 능동적 운동을 계속하며, 마찰로 물집이 생기지 않게 예방하는 조치를 게을리 하지 않아야 한다. Epidermolysis bullosa refers to a group of whose primary common feature is the formation of skin blisters following trivial trauma. Although any of dystrophic or scarring types of epidermolysis bullosa may produce hand deformities, the recessve type produces the most severe and characteristic hand deformity-adduction contracture of the thumb, volar contractures of the palm and digits, and a pseudosyndactyly in an epidermal cocoon. The advanced hand deformity needs surgical therapy and the understanding of the pathomechanics of the development of the hand deformity is essential for the effective treatment. The objective of the hand reconstruction is to reestablish elementary pinch and grasp by the release of adduction contracture of the thumb and the palmar contracture and resurfacing by skin graft. A patient with recessive dystrophic epidermolysis bullosa is described, who had serious hand disability. The surgical correction of the hand deformity, dressing with biobrane, and the appication of the splint improved hand function.
위 장관 상피암에서 에스트로젠 수용체 표출에 대한 면역 조직학적 연구
김인건,김창진,강상균 순천향대학교 1992 논문집 Vol.14 No.4
The presence of Estrogen Receptor(ER) has been reported in various tumors, as orain tumor, lung cancer, gastrointestinal carcinomas and others, which have been believed to be non targer organs for the estrogen. The gastrointestinal carcinoma is one of the most frequent malignancy in Korea and several therapeutic modalities such as surgery, chemotherapy, radiotherapy and immunotherapy. are tried Hormone therapy had been applied selected cases with ER positive cancers and the results were good. To observe the presence of ER in gastrointestinal carcinomas We studied 20 cases of gastric carcinoma and 20 cases of colorectal carcinomas by immunohistochemical method. The results were as follows: 1. The ER was present in 35% (n=7) of 20 cases of gastric adenocarcinoma. Carcinomas in male showed ER positivity in 20% while in 40% in female. 2. Histologically, expanding type(n=4) showed 75% positivity of ER while infiltrative type)n=16) showed 13% of positivity. 3. The ER was present in 45%(n=9) of 20 cases of colorectal carcinomas. The male to female ratio of ER positivity was 57%(n=7) to 38%(n=5). 4. All the mucinous carcinomas(n=4) showed ER negativity, but poorly differentiated adenocarcinoma(n=1) and squamous cell carcinoma((n=1) showed ER positivity. 5. Well differentiated adenocarcinoma of the colorectum showed 50%(n=7) positivity of ER. Above results suggest that carcinomas in gastrointestinal tract, which was not considered as estrogen target organ, can express estrogen recetor and the trial of hormone therapy might be highly encouraged.