• Proceedings of the Korea Society of Design Studies Conference
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• 1996.04a
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• pp.68-69
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• 1996

• Journal of Sasang Constitutional Medicine
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• v.10 no.1
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• pp.161-170
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• 1998

1. Purpose : This research is a study about constitutional diagnosis through the external appearances. especialy it is for finding shape differences of the upper-face pictures of moire, according to the Sasang constitution. 2. Method : We have collected 113 cases of patients of the Sasang Constitutional Department, including employees of the Kyung-Hee Medical Center and took pictures of moire of upper face and measured 50 points. We analyzed shape differences of the upper face according to the Sasang constitution. 3. Results : Analysing the moire of upper face, tile characteristics according to sasang constitution presented. 4. Conclusion : Soyangin had a projected part of left upper face compared with taeumin and soeumin, and taeumin had a projected part of right upper face. With the image of moire, the characteristics of upper face according to sasang constitution was found.

• Proceedings of the Korea Multimedia Society Conference
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• 2000.04a
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• pp.133-136
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• 2000

본 논문에서는 폐암의 변이 형태 분석을 위한 정량적 분석 방법을 연구하였다. 보다 객관적인 분석의 필수적 요인인 정확한 분할을 이해 질감 특징과 통계학적 분류방법을 이용하였으며, 변이 형태 분석을 위해서 분할된 ROI 로부터 여러 가지 형태학적 특성값과 질감 특성값을 추출하여 변이 형태에 따라 비교분석하였다. 이러한 폐암의 변이 형태 분석을 위한 방법은 다른 기관으로의 원격전이가 쉬운 종양의 특성평가에 대한 객관적 병리진단의 보조도구로 사용될 수 있을 것이다.

• Proceedings of the Korean Information Science Society Conference
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• 2000.04b
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• pp.505-507
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• 2000

현재 백혈병 진단에서 사용중인 방법은 골수영상을 획득하고 이를 관찰하여 비정상의 백혈구의 형태, 백혈구 핵의 크기와 추출된 골수에서의 백혈구가 차지하는 비율을 이용하여 진단하고 있다. 비정상적인 모양을 띠고 있는 백혈구의 검출은 백혈병 진단에 있어 중요한 정보로 사용된다. 백혈구의 이상 형태중 다수의 구멍이 있는 백혈구는 검출하기 위해 골수영상에서 백혈구 영역을 추출하고 이에 대해 UNL transform을 이용하여 모양 특징을추출하였다. UNL Fourier transform은 원영상의 이동(translation), 회전(rotation), 확대/축소(scale)에 대해 불변인 성질을 지니므로 이를 이용해 백혈구의 모양 특징을 추출하고 유사도 검색을 통해 비정상의 백혈구를 검출하였다.

• Journal of the korean academy of Pediatric Dentistry
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• v.27 no.1
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• pp.135-145
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• 2000

It is well known that there are different craniofacial skeletal groups in the same malocclusion types. The present study was performed to determine morphologic sub-groups in Korean children with Class III malocclusions, and to find out morphological differences between subgroups by means of a cross-sectional longitudinal cephalometric study. In this study, 135 children aged 6 to 14 year-old with untreated Class III malocclusions were selected. The samples were divided into two groups depending on the angulation of middle cranial fossa (MCF). That is, when the MCF of an individual was measured smaller than 40.3, he/she was tossed into mandibular protrusive-effect group(MREG), while when an individual was measured larger than 40.3, he/she was tossed into mandibular retrusive-effect group(MREG). Thereafter, the grouped samples were divided into 4 age groups(7, 9, 11 and 13 year-old). Thirty four linear and angular measurements on the tracings of lateral cephaloradiographs were measured, and the morphological characteristics and differences were compared and analysed by means of Wilcoxon test. It was found that Korean children with Class III malocclusions were divided into two groups, in which 39.3% were belonged in the MREG and 60.7% were in the MREG. In the MREG, anterior-posterior length of cranial base, nasomaxillary complex, maxilla and mandible were larger than the MREG. And although there was no difference in the total length of mandible (Co-Gn), mandibular body length (Go-Gn) was larger in the MREG during the majority of the observed periods. These results would suggest that a majority of the samples, 60.7%, demonstrated many of configurations of craniofacial skeletal relationships that can be found in the leptoprosopic faceform.

• Review of KIISC
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• v.28 no.3
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• pp.47-52
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• 2018

암호화폐가 세계적으로 주목받으며 핵심기술인 블록체인에 대한 관심이 증가하고 있다. 블록체인은 블록을 P2P 방식을 기반으로 생성된 체인 형태의 연결고리로 분산 저장되어 있으며 임의로 수정할 수 없고 누구나 변경의 결과를 열람가능하다. 블록체인의 공개 형태에 따라 공개형 블록체인과 허가형 블록체인으로 나뉘어 연구되고 있다. 이 논문에서는 세대별 블록체인의 개발 현황과 특징에 대해서 알아본다. 또한 블록체인 공개형태에 따른 특징과 보안성에 대하여 알아보고자 한다.

• Proceedings of the Korea Multimedia Society Conference
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• 2004.05a
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• pp.247-250
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• 2004

본 논문에서는 간단한 사각형 특징과 계층적 분류기를 이용하여 실시간으로 얼굴을 검출하는 방법을 제안하고자 한다. 우리는 다섯 가지 형태의 기본적인 특징 모델을 바탕으로 20*20 크기의 훈련 영상에 적용하여 많은 초기 특징 집합을 구성하였다. AdaBoost(Adaptive Boosting) 알고리즘을 이용한 학습을 통하여 초기 특징 집합 중에서 얼굴 검출하는데 강인한 집합들만을 선택하였다. 제안된 알고리즘을 이용한 실제 실험에서 90% 이상의 높은 검출율을 확인하였고 초당 10프레임의 실시간 검출에도 성공하였다.

• The Korean Journal of Mycology
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• v.31 no.2
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• pp.103-113
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• 2003

Twenty five isolates of Alternaria were obtained from various solanaceous crops in Korea. For all isolates, morphological characteristics of the conidia were determined and compared with those of representative isolates of A. solani and A. tomatophila. A selection of the isolates and the representative Alternaria isolates were evaluated for Pathogenicity to potato, tomato, egg plant and red pepper. Molecular characteristics of 17 isolates of Alternaria inculding the representative isolates were determined using sequence analysis of IRS rDNA and histone H3 gene, and URP-PCR analysis. Based on morphological characteristics, the isolates from the solanaceous crops were grouped as identical or very similar to either A. tomatophila (ATO), A. solani (ASO), and unidentified Alternaria sp. (ASP). Isolates of ASO were moderately pathogenic to all the solanaceous crops tested, but ATO isolates were highly pathogenic to tomato and the ASP isolate was pathogenic only to potato. Among the molecular markers used in this study, the URP-PCR analysis was found to be appropriate for taxonomic resolution of these species. Based on the conidial morphology, pathogenicity test and molecular characteristics, A. tomatophila (early blight of tomato) could be distinguished from A. solani (early blight of potato), and the Alternaria sp. (ASP) from potato, which was closely related to ASO in conidial morphology, was considered as a new species.

• Korean journal of applied entomology
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• v.44 no.2
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• pp.91-95
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• 2005

This study was conducted to investigate the morphological characteristics, overwintering sites and behavior for each stage of Oligota kashmirica benefica (Coleoptera: Sthphylinidae). Egg was oval type, yellow, 0.3 mm size. Larva exuviated 3 times and the last (3rd) instar, length 1.6 mm, wide 0.4 mm, became dermata pupa in soil. Adult was lightish dark-brown, and coriaceous forewing covered a half of abdomen. O. kashmirica benefca mainly overwinters with adult at Japanese cedar (Cryptomeria japonica) windbreaks of orchards, but it did not diapause in greenhouse during winter.

• Korean Journal of Ichthyology
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• v.32 no.4
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• pp.239-244
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• 2020

The morphological characteristics of a larval fish (7.8 mm in body length) collected off Chuuk, Micronesia were highly similar to those of larval Omosudis sp., except fin development and body length. It was identified as Omosudis lowii by partial mitochondrial 12S rRNA gene analysis. The morphological traits of the larval fish validated by the molecular genetic marker will be informative for species-level identification of larval Omosudis lowii.