• Title/Summary/Keyword: 이재근

Search Result 854, Processing Time 0.033 seconds

Therapeutic Effect of a Double Locking-loop Suture Pattern on the Elbow Luxation with Rupture of Collateral Ligament in a Dog (곁인대가 파열되고 주관절이 탈구된 개에서 이중 Locking-loop 봉합법의 치료효과)

  • Lee Jae-yeong;Kim Joong-hyun;Kim So-seob;Lee Seung-keun;Choi Seok-hwa
    • Journal of Veterinary Clinics
    • /
    • v.21 no.4
    • /
    • pp.406-408
    • /
    • 2004
  • A nine-month-old male Jindo with non weight-bearing on the right forelimb in flexed position, pain and edema of the elbow, and resist elbow extension was brought to the Veterinary Teaching Hospital, Chungbuk National University. Elbow radiographs showed loss of humeroradial joint space and lateral displacement of the radius and ulna. Closed reduction was reported the best therapy in most cases of luxation of the elbow but conservative reduction was impossible. Open reduction of the luxated elbow was performed and ruptured collateral ligaments were identified. Displaced elbow was required bloody surgical operation and gentle reduction to restore elbow joint. Internal reduction of choice for elbow luxation with rupture of collateral ligament in the dog was a double locking-loop suture pattern. To ensure secure grasping of parallel bundles of ligament fibers to transverse bites of each suture were placed superficial to the longitudinal bites. All ligaments were repaired with 3-metric (size 2 USP) monofilament polypropylene suture. No complications have been noted during a five-month follow up.

Salt Weathering Characteristics and Mechanism Interpretation of the Five-Storied Stone Pagoda in Tapri-ri, Uiseong (의성 탑리리 오층석탑의 염풍화 특성과 메커니즘 해석)

  • Lee, Mi Hey;Lee, Myeong Seong;Lee, Jae Man;Chun, Yu Gun
    • 보존과학연구
    • /
    • s.33
    • /
    • pp.57-67
    • /
    • 2012
  • The Uiseong Tapriri Five-Storied stone pagoda has occurred exfoliation, granular disintegration and discoloration by physical and chemical weathering factors with the major deterioration occurring due to efflorescence by salt. According to the results of SEM-EDS and X-ray diffraction analysis, salts consists of gypsum, taranakite. Artificial salt weathering tests were carried out using the same type of rocks as those in the stone pagoda. The test results showed that efflorescence occurred on the surface of the rock, and that exfoliation and granular disintegration occurred inside the rock due to salt crystallization.

  • PDF

A Study on the Marine Disasters Prediction System using Cloud (클라우드를 이용한 해양재해 예측시스템 연구)

  • Park, Sun;Baek, Jong Sang;Lee, Jae-Yeong;Oh, Seung Chan;Jeong, Hwan-Jong;Kin, Cho Hyun;Kim, Chul Ho;Lee, Sung Ro
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
    • /
    • 2013.10a
    • /
    • pp.415-417
    • /
    • 2013
  • 바다는 자원의 보고로서 많은 수산업 활동을 통환 경재활동이 활발히 이루어 지고 있으나 기상 등의 해양환경에 많은 영향을 받고 있다. 이 때문에 자동화된 해양 환경 분석 및 예측 기술에 대한 연구가 활발히 진행 되고 있다. 현재 국내에서 수산업 활동에 영향을 미치는 해양 재해로는 기름 유출에 의한 해양오염의 피해, 적조에 의한 수산업의 피해, 해양환경 이변에 의한 수산업 및 재해 피해 등 이외에 다양한 피해가 있다. 해양 환경 자료의 수집과 수집된 자료를 분석하여서 해양재해를 예측하면 이들의 피해를 최소화하는데 기여할 수 있다. 그러나 국내 해양 환경에 대한 조사 및 분석 연구는 미흡한 편에 있다. 이에 본 논문은 국내의 원해 및 근 해역에서 수집된 해양 환경 자료를 분석하여 해양 재해를 예측할 수 있는 시스템 클라우드 기반의 해양재해 예측 시스템을 연구한다.

  • PDF

Change of Dispersibility and Refractive Index of Zirconia Suspension Depending on Alkali Treatment Time (염기처리시간에 따른 지르코니아 현탁액의 분산성과 굴절율 변화)

  • Jo, Choong Hee;Ham, Dong Seok;Lee, Jae Heung;Ryu, Juwhan;Lee, Kee-Yoon;Cho, Seong Keun
    • Korean Journal of Materials Research
    • /
    • v.27 no.1
    • /
    • pp.1-7
    • /
    • 2017
  • Zirconia nanoparticles were widely used as filler in order to get high refractive index layer. However, dispersion of nanoparticles is difficult due to their agglomeration in solvent. In this study, the dispersibility of the zirconia suspension is promoted by controlling the steric hindrance and electrostatic interactions through the adsorption of PEI according to alkali treatment time. Also, to induce improved dispersibility on suspension, we changed the dispersion conditions variously and fabricated an ink formulation method for the coating layer. Zirconia suspension was characterized by dynamic light scattering (DLS), Zeta potential measurement, Transmission Electron Microscope (TEM) and FT-IR. We were able to confirm that good dispersion of zirconia suspension by alkali treatment and PEI led to high refractive index.

The effects of brazing conditions on the bond strength of the SiC/SiC and SiC/mild steel joints brazed by Ag-Ti based alloys (Ag-Ti계 합금을 사용한 SiC/SiC 및 SiC/연강 브레이징에서 브레이징 조건이 접합강도에 미치는 영향의 연구)

  • 이형근;이재영
    • Journal of Welding and Joining
    • /
    • v.15 no.5
    • /
    • pp.104-114
    • /
    • 1997
  • The microstructure and bond strength were investigated on the SiC/SiC and SiC/mild steel joints brazed by Ag-5at%Ti alloy. Ag-5at%Ti-2at%Fe and -5at%Fe brazing alloys were also used to see the effects of Fe addition on the bond strength of SiC/SiC brazed joints. Brazing temperature and brazing gap were selected and examined as brazing variables. The microstructure of SiC/SiC brazed joints was affected by Fe addition to the Ag-5at%Ti alloy, but the bond strength was not. Increasing brazing temperature also changed the microstructure of $Ti_5Si_3$ reaction layer and brazing alloy matrix of the SiC/SiC and SiC/mild steel joints, but not the bond strength. Brazing gap had a great effects on the bond strength. Decreasing brazing gap from 0.2 mm to 0.1 mm in SiC/SiC brazing increased the bond strength from 187 MPa to 263 MPa and, in SiC/mild steel brazing, from 189 MPa to 212 MPa. It was concluded that the most important parameter on the bond strength in SiC/SiC and SiC/mild steel brazing was the relative ratio between brazing gap and specimen size.

  • PDF

산머루즙을 첨가한 Appenzeller Cheese의 품질 특성

  • Bae, In-Hyu;O, Dong-Hwan;Jo, Seong-Gyun;Yang, Cheol-Ju;Gong, Il-Geun;Min, Won-Gi;Park, Jeong-Ro;Park, Eun-Ha;Choe, Hui-Yeong;Choe, Hyo-Ju;Park, Su-Rin;Hwang, Cheol-Ho;Kim, Jun-Mo;Lee, Jae-Seong;Choe, Nam-Cheol
    • Proceedings of the Korean Society for Food Science of Animal Resources Conference
    • /
    • 2004.05a
    • /
    • pp.301-303
    • /
    • 2004
  • 본 연구는 최근 기능성 식품으로 주목 받는 산머루즙을 치즈 원유에 함량비 (5%, 10%, 15%)에 따라 첨가 하여 아펜젤러 치즈를 제조하고 숙성기간중의 생균수의 변화와 숙성도 및 관능적 평가를 실시하여 다음과 같은 결과를 얻었다. 산머루즙 첨가치즈는 대조구와 비교시 숙성중 유산균, 단백질 분해도에서 완만한 변화를 나타내었고 치즈의 관능검사에서 양호한 결과를 나타내 향후 추가적인 연구에 의해 온화한 맛의 한국형 기능성 치즈의 개발 가능성이 기대되었다.

  • PDF

CLINICAL EVALUATION OF BILATERAL INTERNAL DERANGEMENT OF TEMPOROMANDIBULAR JOINT BY MAGNETIC RESONANCE IMAGING (MRI를 이용한 양측성 약관절 내장증의 임상적 평가)

  • Lee, Jae-Hwy;Hwang, Byung-Nam;Lee, Jeong-Keun
    • Maxillofacial Plastic and Reconstructive Surgery
    • /
    • v.18 no.1
    • /
    • pp.78-86
    • /
    • 1996
  • This is a retrospective study of 31 patients, who were diagnosed as bilateral TMJ internal derangement in consequence of magnetic resonance imaging (MRI) of the temporomandibular joint (TMJ) at Department of Dentistry, Ajou University Hospital, and who were compared clinical findings with radiological findings. The results obtained were as follows. 1. The average of the patients of bilateral TMJ internal derangement was 27.3 years with a range from 12 to 74 years, and 93.6% of the patients were yonger than 40 years of age. The male-female ratio was 1 : 6.8, and the females of $20{\sim}29$ years were most common in 35.5%. 2. In the patients of bilateral TMJ internal derangement, the patients who complained clinical symptoms bilaterally were 38.7% and the patients who complained clinical symptoms untilaterally were 61.3%. 3. The most common disc position of bilateral TMJ internal derangement was anterior disc displacement without reduction on both sides in 38.7%. The most common disc configuration of bilateral TMJ internal derangement was biconcave on both sides and amorphous on both sides in closed mouth, and was amorphous on both sides in open mouth. 4. In the patients of bilateral TMJ internal derangement, the joints which really showed clinical symptoms were most common in anterior displacement without reduction of 48.9%.

  • PDF

ART2 기반 RBF 네트워크와 얼굴 인증을 이용한 주민등록증 인식

  • ;Lee, Jae-Eon;Kim, Kwang-Baek
    • Proceedings of the Korea Inteligent Information System Society Conference
    • /
    • 2005.11a
    • /
    • pp.526-535
    • /
    • 2005
  • 우리나라의 주민등록증은 주소지, 주민등록 변호, 얼굴사진, 지문 등 개개인의 방대한 정보를 가진다. 현재의 플라스틱 주민등록증은 위조 및 변조가 쉽고 날로 전문화 되어가고 있다. 따라서 육안으로 위조 및 변조 사실을 쉽게 확인하기가 어려워 사회적으로 많은 문제를 일으키고 있다. 이에 본 논문에서는 주민등록증 영상을 자동 인식할 수 있는 개선된 ART2 기반 RBF 네트워크와 얼굴인증을 이용한 주민등록증 자동 인식 방법을 제안한다. 제안된 방법은 주민등록증 영상에서 주민등록번호와 발행일을 추출하기 위하여 영상을 소벨마스크와 미디언 필터링을 적용한 후에 수평 스미어링을 적용하여 주민등록번호와 발행일 영역을 검출한다. 그리고 4 방향 윤곽선 추적 알고리즘으로 개별 문자를 추출하기 위한 전 단계로 주민등록증 영상에 대해 고주파 필터링을 적용하여 주민등록증 영상 전체를 이진화 한다. 이진화된 주민등록영상에서 COM 마스크를 적용하여 주민등록번호와 발행일 코드를 복원하고 검출된 각 영역에 대해 4 방향 윤곽선 추적 알고리즘으로 개별 문자를 추출한다. 추출된 개별 문자는 개선된 ART2 기반 RBF 네트워크를 제안하여 인식에 적용한다. 제안된 ART2 기반 RBF 네트워크는 학습 성능을 개선하기 위하여 중간충과 출력층의 학습에 퍼지 제어 기법을 적용하여 학습률을 동적으로 조정한다. 얼굴인증은 템플릿 매칭 알고리즘을 이용하여 얼굴 템플릿 데이터베이스를 구축하고 주민등록증애서 추출된 얼굴영역과의 유사도를 측정하여 주민등록증 얼굴 영역의 위조여부를 판별한다.

  • PDF

Development of EMTDC component for HTS coil considering $I_c$(B,T) characteristic (자장과 온도에 의한 임계전류특성을 가지는 초전도 코일 EMTDC 컴포넌트 개발)

  • Lee, Jae-Deuk;Jung, Hee-Yeol;Kim, Jae-Ho;Kim, Jin-Keun;Park, Min-Won;Yu, In-Keun;Lee, Eun-Yong;Beik, Seung-Kyu;Kim, Ho-Min;Kwon, Young-Kil
    • Proceedings of the KIEE Conference
    • /
    • 2007.07a
    • /
    • pp.949-950
    • /
    • 2007
  • Before applying HTS power device to the real utility system, a system analysis should be carried out by some simulator. PSCAD/EMTDC simulation tool is one of the most popular system analysis. Unfortunately the model component for HTS coil is not provided in the PSCAD/EMTDC simulation tool. In this paper, the model component for the HTS coil has been developed considering the real field data, temperature and magnetic field, of the HTS coil. The numerical model of HTS coil in PSCAD/EMTDC was designed by using the real experimented data obtained from the $AMSC^{TM}$ wire characteristic. The developed model component for HTS coil could be variously used when the power system includes HTS coil.

  • PDF