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정중구개 봉합선 급속확장시 구강 및 비강 변화에 관한 단층 두부방사선적 연구
황인준(In-Joon Hwang),박영철(Young-Chel Park) 대한치과교정학회 1991 대한치과교정학회지 Vol.21 No.3
It was said that early rapid palatal expansion was the treatment of choice in case of maxillary constriction with posterior crossbite. The author tried to assess dimensional changes of nasal and oral cavity before rapid palatal expansion and over 4 months of retention by use of three coronal tomograms through the incisal, molar, and maxillary tuberosity areas. The subjects of this study were consisted of 9 boys and 11 girls ranging from 11 to 13 years old. The results were as follows: 1. A mean change in maxillary first molar width was 3.68mm and a mean change in nasal cavity width was 2.26mm after 6.70mm expansion by Hyrax-type screw and over 4 months of retention tomographically in molar cut. 2. A change in nasal cavity width tomographically showed in order of molar cut, incisal cut, maxillary tuberosity cut respectively. 3. There was no correlation between changes in oral cavity width and nasal cavity width.
실내에서 사육한 양식산 수조기, Nibea albiflora의 자연산란과 난질
강희웅(Hee-Woong KANG),황인준(In Joon HWANG),한종철(Jong Cheol HAN),이경미(Kyung Mi LEE) 한국수산해양교육학회 2022 水産海洋敎育硏究 Vol.34 No.5
This study investigated the characteristics of natural spawning and egg quality from indoor-cultured broodstock yellow drum. The size of cultured broodstock was 37.6±3.3 cm in total length and 698.7±214.7 g in body weights, and the relationship between body weight (BW) and total length (TL) was expressed as BW=0.0014TL<SUP>3.6075</SUP> (r²=0.9637). The condition factor (CF) showed the highest value in May (20.3±3.7), then it decreased gradually since May and showed the lowest value in October (15.2±2.2), CF gradually decreased after the spawning period. Natural spawning of cultured broodstock (3 years old) was observed four times from July 9 to 17. It occurred when the water temperature increased and day length decreased, and the egg diameter became smaller as spawning is progressed. The floating rate, egg diameter and oil droplet diameter, hatching rates were 96.86±3.62%, 778±41 ㎛, 255±23 ㎛ and 67.50±24.51%, respectively. The length of newly hatched larvae was 1.62±0.25 mm.
거대한 구조물의 3차원 영상 재구성을 위한 외곽선 길이 정보 추출
전병승(Byung-Seung Jeon),박정민(Jung-Min Park),김영중(Young-Joong Kim),고한석(Han-Seok Ko),황인준(In-Joon Hwang),임묘택(Myo-Taeg Lim) 대한전기학회 2008 대한전기학회 학술대회 논문집 Vol.2008 No.10
본 논문은 큰 구조물의 3차원 영상 재구성을 위해서 획득한 2차원 영상에서 특징점을 찾아 선으로 조합한 후 선 길이 정보를 추출하는 방법을 제안한다. 거대한 구조물의 외곽선 길이 정보 추출을 위해서는 광각 카메라에 의한 영상을 획득한다. 영상에서의 외곽선들은 모델의 기울어진 정보와형태, 모델의 크기 등을 결정하게 되는데 광각카메라 사용에 의하여 배럴왜곡, 원근투영왜곡 등이 발생한다. 외곽선 정보 추출의 순서는 먼저 모델의 2차원영상을 획득하고 이로부터 왜곡이 보정된 그레이영상을 획득한다. 이 그레이영상에서 잡음을 제거하고 특징점을 찾기 위하여 SUSAN 알고리즘을 사용한다. SUSAN알고리즘 기법은 적은 계산량과 잡음에 매우 강한 장점이 있어서 영상에서의 특징점을 얻기 위한 효과적인 기법이다. 특징점을 3차원 벡터공간에서 맵핑시킨 후 X, Y, Z 좌표축으로 점과 선으로 나타내고 시작점과 끝점의 좌표를 이용하여 벡터 길이를 얻는다. 이러한 벡터 데이터와 3차원 영상 재구성을 위한 라이브러리인 OpenGL을 사용하여 3차원 공간에 거대한 구조물들을 재구성하는 소프트웨어를 개발하였다.
넙치, Paralichthys olivaceus 발생단계별 galectin-1 유전자의 발현 분석
장민석 ( Min Seok Jang ),이영미 ( Young Mee Lee ),양현 ( Hyun Yang ),이정호 ( Jeong Ho Lee ),노재구 ( Jae Koo Noh ),김현철 ( Hyun Chul Kim ),박철지 ( Choul Ji Park ),박종원 ( Jong Won Park ),황인준 ( In Joon Hwang ),김성연 ( Sung 한국어병학회 2013 한국어병학회지 Vol.26 No.3
The innate immune response is fundamental defense response of vertebrates and invertebrates. Especially, the innate immune response important for larvae that lack of resistance to infectious diseases in the early stages. Galectin is one of the kinds of lectin and presents in the fish mucous that involves innate immune response. Galectin have been studied from various fishing species, but expression analysis of galectin is still unclear during early developmental stage in olive flounder. In this study, we investigated gene expression of galectin-1 from various developmental stage and tissues. We excised several tissues including the muscle, fin, eye, gill, brain, stomach, intestine, kidney, spleen and liver from adult olive flounder and confirmed gene expression of galectin-1 using RT-PCR and quantitative real-time PCR. Expression of galectin-1 was significantly higher in muscle, stomach and intestinal tissue than other tissue in adult fish (5 and 29 months). Also, galectin-1 gene was detected from 0 DAH and gradually increased to 35 DAH and since then decreased after stomach development period. Induction of galectin-1 during the early developmental stage suggest that muscle, fin and eye tissue is formed and begins the secretion of galectin this period. In addition, increased expression levels at 35 DAH suggest that due to complete formation of stomach and intestine, increase of secretion and activation of enzyme. This study shows that expression of galectin-1 during early developmental stages and adult period in olive flounder and can be expect that galectin-1 play essental role in the innate immune system throughout the whole life time. Galectin-1 is primary barrier such as skin and digestive tissue against pathogen infection, also digestive tract developmental period is important for pathogen invasion can be expected that it will serve. Mass mortality due to the disease in seed production is continuing damage, therefore these result will be meaningful about infectious disease during early developmental stages as a basic data for the study.