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모정희,정현구,조태식,김효석,박성규,이난영 조선대학교 구강생물학연구소 2002 口腔生物學硏究 Vol.26 No.2
The nasopalatine duct cyst is the most common non-odontogenic cyst in the oral area and is thought to be originated from the epithelial remnants of the nasopalatine duct. The nasopalatine duct cyst have been mentioned to be an overall incidence of 1.7-11.9% of all jaw cyst. More males than females are affected by that. It could occur all around the age, and especially in their 40th and 60th it happens the most and in childhood it is very rare. Proper treatment for nasopalatine duct cyst is enucleation. In the case of very large cysts, it is likely to be a risk of naso-oral or antral-oral fistulas or of devitalization of teeth, marsupialization is indicated. The purpose of case report is that a nasopalatine duct cyst in is very rare in childhood. A 9-year-old boy was referred to the chosun university pedodontics clinic that this child who has anterior palatal swelling is in routine check. The size of the cyst was so big that the marsupialization was committed and obturator was put. This patient is on the continuous observation. we treated the nasopalatine duct cyst with obturator.
소아에서의 Nd : YAG Laser를 이용한 치은착색제거술 YAG Laser in children
모경희,박헌동,박종휘,김효석,정현구,설재헌,이병채 조선대학교 구강생물학연구소 2003 口腔生物學硏究 Vol.27 No.1
Melanin is normally found in the skin of all people, and normal pigmentation of the intraoral tissues is a relative frequent finding. Gingival hyperpigmentation may cause esthetic problems and embarrassment, especially in patients with a gummy smile. Melanin pigmentation is related to etiologic factor such as hormon, systemic factor, drug, smoking and gingival inflamation. Depigmentation procedure can be Performed by gingival epithelium removing procedure, gingivectomy, free gingival graft, laser therapy, dry ice, Vitamin C and phenol-alcohol method. We could obtain favorable esthetic results by procedures such as Nd: YAG laser. The Nd:YAG laser was set at 4 watt, 50mJ, 80 pulse per second. The procedures were performed with contact mode in all pigmented areas by using a handpiece with a 320㎛ diameter fiber optic. Ablation of the gingival hyperpigmented gingiva appeared healthy, pink, and firm. No recurrence of hyperpigmentation had been found in 6 months of follow-up.
다공성 금속 내부 2상 유동 압력 강하 특성 실험적 평가
구현모(Hyun mo Ku),정지환(Ji Hwan Jeong) 대한설비공학회 2019 대한설비공학회 학술발표대회논문집 Vol.2019 No.-
This paper aims to experimentally investigate the pressure drop characteristic in the upward two-phase flow inside the nickel foam. The void fraction was directly measured to show the properties of the mixture, and the QCV(Quick Closing Valve) method was used. The void fraction was measured with drain system using compressed air or calculated by liquid holdup. To see only the pressure loss, the hydrostatic pressure difference was directly compensated by using three methods such as Drain method, Liquid holdup method, Homogeneous flow assumption.
Antioxidant and QR Inductive Activities of Novel Functional Soybean ‘Agakong3’
Kang-Mo Ku,Min-Gun Kim,Mi-Jeong Hong,Yeon-Shin Jeong,Jeong-Sang Kim,In-Jung Lee,Dong-Hyun Shin,Young-Hyun Hwang,Young-Hwa Kang 한국식품과학회 2009 Food Science and Biotechnology Vol.18 No.3
In order to evaluate the bioactivity of ‘Agakong3’, which was newly bred, quinone reductase (QR) inductive activity and antioxidant activity were both assessed. The methanol extract of ‘Agakong3’ showed a significantly stronger QR inductive activity than other soybeans. The methanol extract of ‘Agakong3’ also showed a significantly stronger cytotoxicity on hepa1c1c7 than other soybeans. ‘Agakong3’ exhibited the most potent antioxidant activity in the Trolox equivalent antioxidant capacity (TEAC) assay whereas it showed significantly weak antioxidant in the DPPH assay. In total phenol and flavonoid contents, ‘Agakong3’ showed the highest contents regarding phenol and flavonoid compounds. Major isoflavones such as daidzein and genistein were quantitified by high performance liquid chromatography. ‘Agakong3’ also showed the highest total isoflavone contents. Results of correlation analysis showed that there were high correlation coefficients between the contents of isoflavone and TEAC and the contents of isoflavone and QR inductive activity, respectively. These results suggest that ‘Agakong3’ will be a promising and functional food material.
구현모 ( Hyun-mo Ku ),김태준 ( Tae-jun Kim ),양기창 ( Ki-chang Yang ),이도현 ( Do-hyun Lee ),전병모 ( Byeong-mo Jun ),박진호 ( Jin-ho Park ),김영종 ( Young-jong Kim ) 한국정보처리학회 2017 한국정보처리학회 학술대회논문집 Vol.24 No.1
통계상 국민 2명중 1명이 차를 소유하고 있는 오늘 날, 뉴스를 통해서 차량사고에 의한 인명사고 소식을 심심치 않게 접할 수 있다. 그 중 많은 비중을 차지하고 있는 사고는 승 하차시의 접촉 사고로, 최근 들어 증가하는 추세이다. 그래서 이러한 자동차 접촉사고에서의 자동차 탑승자의 안전을 지키기 위한 대책이 시급하다고 생각하였고, 이에 본 논문에서는 뒤의 다가오는 물체에 대한 속도측정을 통한 자동 차문 잠김을 대안으로 제시하며, 이를 통해서, 자동차 탑승자들의 안전을 보장하는 것에 보다 더 한걸음 나아가고자 한다.
Locomotion Control with Inverted Pendulum Model and Hierarchical Low-Dimensional Data
HAN, Ku-Hyun,PARK, Byung-Ha,JUNG, Kwang-Mo,HAN, JungHyun 'Institute of Electronics, Information and Communi 2017 IEICE transactions on information and systems Vol.100e.d No.11
<P>This paper presents an interactive locomotion controller using motion capture data and an inverted pendulum model (IPM). The motion data of a character is decomposed into those of upper and lower bodies, which are then dimension-reduced via what we call hierarchical Gaussian process dynamical model (H-GPDM). The locomotion controller receives the desired walking direction from the user. It is integrated into the IPM to determine the pose of the center of mass and the stance-foot position of the character. They are input to the H-GPDM, which interpolates the low-dimensional data to synthesise a redirected motion sequence on an uneven surface. The locomotion controller allows the upper and lower bodies to be independently controlled and helps us generate natural locomotion. It can be used in various real-time applications such as games.</P>