표면 엔지니어링을 위한 내마모성 코팅과 습식 접착제

이규의 한국공업화학회 2021 한국공업화학회 연구논문 초록집 Vol.2021 No.1

다계층 프로그래밍언어 Links의 웹 취약점 분석

이규해(Kyu-Hai Lee),창병모(Byeongmo Chang),최광훈(Kwanghoon Choi) 한국정보과학회 2022 한국정보과학회 학술발표논문집 Vol.2022 No.12

자궁외임신과 B- hCG치

이규인(K.I Lee),이종용(JY Lee),이태호(TH Lee) 대한산부인과학회 1982 Obstetrics & Gynecology Science Vol.25 No.7

자궁외임신의 조기진단을 위하여 조직진으로 확진된 32예의 자궁외임신예의 B-hCG치의 분포, 요임신진단 및 발생부위와의 관계에 대하여 연구한 바 그 결과를 아래와 같이 요약한다. 자궁외임신 32예의 평균 B-hCG치, 범위 및 표준편차는 각각 761.6mIU/ml, 150~3,500mIU/ml, +-828.6mIU/ml로 치의 변동이 매우 심하여 안정치를 인정할 수 없었다. 요임신반응 양성예는 14예로 43.6%, 음성예는 18예로 56.4%를 점하였다. 요임신반응 양성예의 평균 B-hCG치는 음성예의 그것보다 높은 경향을 보였다. 자궁임신의 발생부위별 B-hCG치는 난관팽대부와 난관협부가 각각 377.5 및 343.3mIU/ml로 근사한 치를 보였다. 자궁외임신 32예중 24예, 즉 75.0%가 B-hCG치 599mIU/ml이하이었다. 이상의 성적으로 미루어 자궁외임신을 제외할 수 있는 B-hCG치의 하한을 대략 100mIU/ml에 둠이 타당할 것으로 사료된다. Retrospective studies were made on B-hCG values of 32 ectopic pregnancies,which were diagnosed by biopsy of surgical specimen, for an aid of early diagnosis of ectopic pregnancies. The results summarized were as follows: Mean,range and standard deviation of B-hCG values in 32 cases of ectopic pregnancies were 761.6 miu/ml,150~3500 miu/ml and +-(*)828.6 miu/ml respectively,suggested highly unstable values. Positive pregnancy test for urine was 14 cases or 43.6% and that of negative was 18 cases or 56.4% Beta-hCG values, according to the siteof nidation with 377.5 miu/ml in ampulla portion and 343.3 miu/ml in isthmic portion revealen very similar results. One particular finding was 24 cases out of 32 cases of ectopic pregnancies or 75.0% showed B-hCG values under 599 miu/ml. Judging from the data obtained it is resonable to set the low limit of excluding ectopic pregnancy roughly around the 100 miu/ml.

Morquio-Brailsford's Disease 1例 報告 : Report of a Case

李圭五,片英植,姜在道,姜昌洙 최신의학사 1973 最新醫學 Vol.16 No.2

One case of Morquio Brailsford's Disease in a 10 2/12 year-old girl is reported. Since Morquio and Brallsford described the disease in 1929, it has been a well recognized entity which may be defined as a characteristic growth disorder of cartilage and cartilage derived bone, presumably due to a hereditary metabolic disorder. Involvement of other tissue and organs is minimal or abscent and intelligence is sometimes mildly impaired, but more often it is normal. While, undoubtedly, the underlying metabolic disorder is congenital, nearly all children have been described as normal at birth, but there has been a suggestion of the disease at birth in only a few case. In almost all cases, the first symptoms appear at about the time weight bearing begins by sitting and standing. The first sign noted is usually a dorsolumbar kyphosis which is most frequent findings. Characteristic findings are dorsolumbar kyphosis, dwarfism and irregular configuration of epiphysis due to abnor?mality of epiphyseal cartilage growth, and when the disease is matured, diagnosis is relatively easy with sight and X-ray examination because the deformity in well developed cases is so striking. X-ray findings are alteration in the size and contour of the vertebral bodies which are flat with rough irregular contour and anterior central projection. Cylindrical bone may be normal in length, but the growth ends of the long bones are broad with irregular zones of provisional calcification and irregularly ossified, flattened epiphyseal center. The disease process is not affected by many therapy tried so far and orthopedic therapy is limited to the prevention and the correction of the secondary mechanical deformities. Though life expectancy is better than typical gargoylism, nevertheless, most cases with Morquio's disease seemed to survive childhood.

경부에 발생한 점액성 지방육종 1예

이규인(Kyuin Lee),기정혜(Jeong Hae Kie),신향애(Hyang-Ae Shin),김지훈(Ji-Hoon Kim) 대한두경부종양학회 2021 대한두경부 종양학회지 Vol.37 No.2

Liposarcoma is a very rare malignant tumor affecting the head and neck area. Since it is an invasive and lifethreatening disease, active treatments is necessary. However, differential it from lipoma, its corresponding benign counterpart, may be difficult. Herein, we report a rare case of posterior neck myxoid liposarcoma in a 72-year-old man who was initially misdiagnosed with lipoma, including a literature review of differential diagnosis between lipoma and liposarcoma.

지속가능 도시건축 주요과제와 실천사례

이규인(Lee, Kyuin) 대한건축학회 2011 建築 Vol.55 No.10

북극권 스피츠베르겐 섬의 관속식물 국명 목록

이규,한동욱,현진오,황영심,이유경,이은주 한국해양과학기술원 2012 Ocean and Polar Research Vol.34 No.1

In this study, we attempted to provide Korean names to the arctic vascular plants observed around the Dasan Korean Arctic Station and Longyearbyen in Spitsbergen Island, in the Arctic region. To obtain recognizable results, plants were named according to the following naming rules. (1) When Korean names already existed, those names were used. (2) When there was no Korean name for a plant species, a scientific name for the plant was translated into a Korean name. (3) If the meaning of the scientific name was unclear, an English common name was translated into Korean name. (4) If the scientific names had meaning to the Arctic inhabitation, the Korean names included the word ‘Buk-geuk’. (5) If the distribution of the plant was limited to the Arctic area or the original species lived in the polar region, the Korean name included the word ‘Buk-geuk’. (6) If the plant had no Korean generic name, a particular suffix ‘~a-jae-bi’was added to the closely related genus name of the plant species, or a new Korean genus name was used by translating a common English name. (7) If the same generic name had two or more Korean names, a generic name that better reflected the characteristics of the plant was selected. In this paper, we reported Korean names for 46 plants species belonging to 15 families and 28 genera. Eight plants had an existing Korean name and the other species were given new Korean names based on the criteria outlined above. We also made new Korean generic names for three genera, Braya, Micranthes and Cassiope.

금속패드가 Sn계 무연솔더의 저주기 피로저항성에 미치는 영향

이규오,유진,Lee, Kyu-O,Yoo, Jin 한국마이크로전자및패키징학회 2003 마이크로전자 및 패키징학회지 Vol.10 No.3

플립칩 전자패키지에서 칩과 기판(PCB)를 연결할 때, 통상적으로 칩쪽은 금속패드/UBM 처리를 기판 쪽은 표면처리를 한 후 솔더로 연결하는데, 이 때 사용되는 UBM이나 표면처리에 따라, 칩/솔더, PCB/솔더에 생성되는 금속간 화합물의 종류와 두께 및 솔더의 조성이 변하게 되어 궁극적으로 솔더 접합부의 기계적 신뢰성에 영향을 주게 된다. 본 연구에서는 Cu와 Au/Ni의 두가지 금속 패드가 무연솔더의 저주기 피로특성에 어떠한 영향을 미치는 지에 대해 고찰해 보았다. 저주기 피로 실험은 Cu나 Au/Ni이 표면처리 된 기판에 무연솔더 (Sn-3.5Ag, Sn-3.5Ag-1.5Cu, Sn-3.5Ag-XBi(X=2.5, 7.5), Sn-0.7Cu)를 리플로하여 총변위를 변화시키면서 상온에서 시행하였다. 기판의 표면처리에 관계없이 Sn-3.5Ag, Sn-3.5Ag-XCu(X-0.75, 1.5), Sn-0.7Cu 합금이 Sn-3.5Ag-7.5Bi 합금보다 피로저항성이 현격히 좋았으며, Au/Ni 표면처리한 솔더 접합부가 Cu 처리한 경우보다 피로저항성이 뛰어난 것으로 나타났다. 파괴 후 단면을 조사한 결과 계면에 형성된 금속간 화합물 내에 미세균열이 발견되었는데, Cu 표면처리를 사용한 경우 더 많은 미세균열이 생성된 것을 볼 수 있었다. Sn-3.5Ag, Sn-3.5Ag-Cu(X=0.75, 1.5), Sn-0.7Cu 합금의 경우 금속간 화합물 내에 생기는 미세 균열이 거시 균열로 성장하지 않고 파단은 항상 솔더 내부로 일어난 반면. Bi를 함유한 솔더의 경우, 기판의 표면처리에 상관없이 금속간 화합물/솔더 계면으로 균열이 생성 진전되어 다른 솔더합금에 비해 열악한 피로저항성을 나타내는 것으로 보인다. 이것은 Bi의 금속간화 합물/솔더 입계 편석이나 Bi 합금이 다른 합금에 비해 높은 경도값을 가지는 것에 인한 것으로 보여 진다. Surface finishes of PCB laminates are important in the solder joint reliability of flip chip package because the types and thicknesses of intermetallic compound(IMC), and compositions and hardness of solders are affected by them. In this study, effects of surface finishes of PCB on the low cycle fatigue resistance of Sn-based lead-free solders; Sn-3.5Ag, Sn-3.5Ag-XCu(X=0.75, 1.5), Sn-3.5Ag-XBi(X=2.5, 7.5) and Sn-0.7Cu were investigated for the Cu and Au/Ni surface finish treatments. Displacement controlled room temperature lap shear fatigue tests showed that fatigue resistance of Sn-3.5Ag-XCu(X=0.75, 1.5), Sn-3.5Ag and Sn-0.7Cu alloys were more or less the same each other but much better than that of Bi containing alloys regardless of the surface finish layer used. In general, solder joints on the Au/Ni finish showed better fatigue resistance than those on the Cu finish. Cross-sectional fractography revealed microcracks nucleation inside of the interfacial IMC near the solder mask edge, more frequently on the Cu than the Au/Ni surface finish. Macro cracks followed the solder/IMC interface in the Bi containing alloys, while they propagated in the solder matrix in other alloys. It was ascribed to the Bi segregation at the solder/IMC interface and the solid solution hardening effect of Bi in the $\beta-Sn$ matrix.

친환경 건축물 인증 공동주택의 거주자 만족도 조사를 통한 평가기준 개선방향 연구

이규인(Lee Kyu-In),염동우(Yeom Dong-Woo) 대한건축학회 2009 대한건축학회논문집 Vol.25 No.12

As international considerations about the Environmental Assessment on Green Buildings increase, KGBCC(Korean Green Building Certification Criteria) was developed in 2000 and has operated since 2002 in Korea. The objective of this study is to research residents' awareness about KGBCC, residents' satisfaction level, and the cause of dissatisfaction about KGBCC assessment standards which based on residents of the KGBCC certified apartments. For the research, the questionnaire about awareness of KGBCC, satisfaction level, and the cause of dissatisfaction were surveyed through residents of the KGBCC certified apartment in Samsan District, Inchon. The survey results were analyzed and compared with the assessment score, and improvement ways of KGBCC were suggested.

자궁경부의 이상상피, 암상피직하의 모세혈관 구축상 및 질확대경진상과 병소분포

이규인,이태호 대한산부인과학회 1989 대한산부인과학회 학술대회 Vol.63 No.-