http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
방사선조사가 설의 개방성창상치유에서 섬유아세포의 재형성에 미치는 영향에 관한 연구
이진구,최순철,박태원,유동수,Lee Jin-Koo,Choi Soon-Chul,Park Tae-Won,You Dong-Soo 대한영상치의학회 1997 Imaging Science in Dentistry Vol.27 No.1
Radiation-impaired wound healing in animal experiments was believed to be an another logical experimental model to understand the wound healing mechanism in patients. The purpose of this study was to reveal the block point which would result in impaired healing. Twenty four rats(Sprague-Dawley strains) were divided into two groups according to the time interval between irradiation and wounding. Group I, observing the healing effect on the 1st day and Group II are the healing effects on the 7th days after irradiation to the wound of the rat tongue. Experimental animals were sacrificed 3, 6, 12, and 24 hours after wounding. The specimens were examined by the light microscope and transmission electron microscope. The following results were obtained 1. Fibroblasts in both groups showed degenerative changes which were dilated mitochondria and rER, reduced microorganelle, vacuoles and little cytoplasmic process. 2. Average length between bands and Quantity of the newly produced collagen fibers around fibroblasts remained unchanged against control group. 3. The severity of degenerative change of the fibroblast and impairment of wound healing including shortening of the thickness of collagen fibers were more severe in the group II than in the group I.
주파수 부대역별 병렬 신경망 분석에 의한 화산 분출 초저음파의 식별기법 연구
이진구 ( Jin-koo Lee ) 한국정보처리학회 2014 한국정보처리학회 학술대회논문집 Vol.21 No.1
본 논문에서는 화산 분줄 초저음파의 식별을 위해서 FSPNNC(Frequency Sub-bands Parallel Neural NetworkClassification)을 선택한다. FSPNNC 는 각기 다른 주파수 영역에서 독립적으로 추출한 특징 벡터를 병렬 구조의 신경망에 학습하는 구조를 가지며 하나의 신경망은 하나의 분류 및 하나의 주파수 부대역만을 학습하고 다른 신경망들은 해당 특징벡터를 분류하지 않도록 학습된다. 실험은 단일 신경망 및 PNNCB(Parallel Neural Network Classifier Bank)와의 비교실험을 통하여 식별 성능을 제시한다.