축압축력을 받는 원통형 쉘의 비선형 붕괴해석

조현영,김성도,김미옥 부산대학교 1995 生産技術硏究所論文集 Vol.48 No.-

To investigate imperfection-sensitivity for the cylindrical shell structures, a numerical method for evaluating the equilibrium path of a cylindrical shell subjected to axial load and eccentrically axial load is presented. The effects of both material and geometric nonlinearities were also considered in the analysis. The nonlinear formulation was based on the total Lagrangian description and the nonlinear equations were solved by the Newton-Raphson method with load incremental procedures. Degenerate shell elements with layered approach were employed for the analysis. Comparing with experimental results, nonlinear collapse analysis of cylindrical shells subjected to axial compression is carried out. The characteristics of the elasto-plastic deformation can be found in several numerical examples and the local eccentricity of the axial load affects considerably on the level of critical load due to local buckling. 불완전량이 있는 원통형 쉘의 좌굴 거동을 조사하기 위해, 중심 축하중 및 편심 축하중을 받는 원통형 쉘의 평형 경로를 재료 및 기하학적 비선형성이 고려된 수채해석을 통하여 추적하였다. 이때의 비선형 중분 평형방정식은 total Lagrangian 정식에 따라 유도되며, 하중증분법과 Newton-Raphson 법으로 해를 구한다. 본 연구에는 충분할 해석이 가능한 degenerate 쉘 요소를 사용하였다. 비선형 붕괴해석 결과와 실제 실험결과와 비교하였으며, 여러 가지 해석예제를 통하여 탄소성 변형의 특성을 알 수 있었다. 그리고 원통형 쉘의 국부좌굴시 편심하중에 의한 내하력의 감소현상이 두드러짐을 알 수 있었다.

Papular Elastorrhexis

( Mi Ok Do ),( Seong Hyun Kim ),( Hae Young Choi ),( Ki Bum Myung ),( You Won Choi ) 대한피부과학회 2007 Annals of Dermatology Vol.19 No.1

Papular elastorrhexis (PE) is a rare connective tissue disease, histopathologically characterized as decreased and fragmented elastic fibers in the reticular dermis, with or without change to the collagen bundles. It presents as small, white, nonfollicular papules predominantly scattered over the chest, shoulders, or back, and is most often seen in females of the second decade. Although all reported cases of PE have been asymptomatic, a 21-year-old woman presented with a one-year history of multiple, small skin-colored papules on the back which were associated with an intermittent itching sensation. Histopathologic examination revealed fragmented elastic fibers with focal homogenization of collagen in the reticular dermis. Therefore, we report a rare case of papular elastorrhexis with "pruritus". (Ann Dermatol (Seoul) 19(1) 16~18, 2007)

LC/MS/MS를 이용한 국내 유통 농산물의 잔류농약 실태조사

김미옥(Mi Ok Kim),황혜신(Hye Shin Hwang),임무송(Moo Song Lim),홍지은(Jee Eun Hong),김순선(Soon Sun Kim),도정아(Jung-Ah Do),최동미(Dong Mi Choi),조대현(Dae Hyun Cho) 한국식품과학회 2010 한국식품과학회지 Vol.42 No.6

국내 유통 농산물 16품목을 대상으로 LC/MS/MS로 분석 가능한 다종다성분 농약 60종을 검사하여 식품의 잔류농약 안전성을 조사하였다. 조사대상 농산물 510건 중 대부분의 농산물인 490건(96.1%)의 농산물은 농약이 검출되지 않았으며, 18건(3.5%)의 농산물에서 농약이 검출되었으나, 대부분 잔류허용기준 미만으로 검출되었다. 들깻잎, 부추 등 엽채류의 검출빈도가 높은 편이었으나 대부분 잔류허용기준 미만으로 검출되었고, 시금치, 부추에서 각각 ethaboxam, fluquinconazole이 잔류허용기준 이상으로 검출되었다. 검출 농약은 9종이었으며, azoxystrbin과 dimethomorph가 가장 많이 검출되었다. 쌀 등 16품목의 다소비 농산물을 대상으로한 모니터링 결과 농약의 잔류량은 대부분 잔류허용기준 미만으로 비교적 안전한 수준으로 농산물에 대한 농약 관리가 이루어지고 있는 것으로 판단되었다. This survey was carried out to estimate pesticide residue levels in commercial agricultural products in the year 2009. Residues were examined in 16 commodities (rice, foxtail millet, buckwheat, kidney beans, peanuts, sesame, oranges, grapefruit, kiwifruit, spinach, perilla leaves, leeks, garlic stem, garlic, ginger, and oak mushroom) collected from 22 provinces in Korea. Analyses were performed by multi-methods capable of detecting up to 60 pesticides by LC/MS/MS. A total of 510 samples were collected and analyzed. Of the samples, 96.1% contained no detectable pesticide residues. Detectable residues at or below the MRLs were found in 3.5% of the samples. However, in 0.4% of the samples (spinach and leeks), residue (ethaboxam and fluquinconazole) levels exceeded the MRLs. Furthermore, intake assessments of 7 kinds of pesticide residues were carried out, excluding those exceeding the MRLs. The results showed that the ratios of EDI (estimated daily intake) to ADI (acceptable daily intake) were 0.0001-0.0006%, which indicates that the detected pesticide residues were in a safe range. It is concluded that residual pesticides in agricultural products are properly controlled in Korea.

경기도 사회서비스원 위탁 국공립어린이집 표준운영 매뉴얼 개발 연구

도미향(Do, Mi-Hyang),김응자(Kim, Eung Ja),김상옥(Kim, Sang Ok),유지연(You, Ji-Yeon),이경주(Lee, Gyeong Ju) 한국부모교육학회 2021 부모교육연구 Vol.18 No.1

본 연구는 경기도 사회서비스원에서 위탁받아 운영하는 국공립어린이집 원장이 어린이집을 운영하면서 경기도사회서비스원 만의 수준 높은 서비스를 제공하는 데 필수적으로 알아야 할 운영 내용을 담아 국공립어린이집을 처음 운영하거나 이미 운영 중인 원장에게도 운영의 효율성을 높이고, 모호한 부분을 더욱 명백하게 하고, 국공립 원장의 어려움과 심적 부담을 경감시켜주고자 하였다. 또한, 국공립어린이집 원장들이 해당 제도를 정확히 이해하고 영유아에게 적절한 최상의 서비스를 제공할 수 있도록 필요한 운영의 기본과 심화, 전문지식, 기술을 제공하는데 목적이 있다. 이러한 목적을 달성하기 위해 문헌검토와 해당 분야 학계, 현장 전문가들의 의견과 포커스그룹 인터뷰에 참여한 어린이집 원장의 심층인터뷰를 시행하였으며, 수집된 내용을 종합적으로 분석·도출하여 경기도사회서비스원 위탁 국공립어린이집 운영체계 및 기준, 운영관리 방법 및 내용, 권리 존중 및 청렴운영의 4가지 매뉴얼 모듈을 구성하였다. 본 연구는 사회서비스원 위탁 국공립어린이집 원장으로서 갖춰야 할 기본적 역량을 함양하기 위한 주제로 구성함으로써 원장이 본 연구 결과를 활용하여 적확하고 투명한 운영을 할 수 있는 지침과 최상의 보육서비스를 제공할 수 있는 기초를 제공하였다. The aim of this study was to provide the high-quality service at the Gyeonggi Provincial Social Service Center by operating the nursery school, which is entrusted to the Gyeonggi Provincial Social Service Center. In addition to enhancing the efficiency of operations for the first time, this study helped the director, who was already operating the national daycare center, clarify the ambiguous parts of the operations of the daycare center. The purpose of the present invention was to provide basic and in detail operations, expertise, and technology to provide the best service. To achieve this purpose, in-depth interviews of the nursery director who participated in the interviews with academics and field experts in the field and a focus group and a literature review were comprehensively analyzed and derived to form four manual modules for the operation system and standards, operation management method and contents, respect for rights and integrity operation of the Gyeonggi Provincial Social Service Center based on the national level childcare project guide. It is expected that the director will be able to contribute to the realization of the principle of providing the best childcare service and the best benefits for infants and young children through systematic operation of national and public daycare centers, integrity operation, respect for the rights of childcare staff, and helping the infants and young children with confidence and leisure by constructing the theme to cultivate basic competencies to be done.

경표피 배출 소견을 보이는 유두상 한선종

도미옥 ( Mi Ok Do ),김소영 ( So Young Kim ),김명화 ( Myung Hwa Kim ),최혜영 ( Hae Young Choi ),명기범 ( Ki Bum Myung ) 대한피부과학회 2005 대한피부과학회지 Vol.43 No.6

석회화된 기저세포암의 석회화 관련 인자의 발현

도미옥 ( Mi Ok Do ),김소영 ( So Young Kim ),최유원 ( You Won Choi ),명기범 ( Ki Bum Myung ),최혜영 ( Hae Young Choi ) 대한피부과학회 2007 大韓皮膚科學會誌 Vol.45 No.7

Background: Although basal cell carcinoma (BCC) is the most common human skin tumor, with calcification reportedly taking place in about 20% of all BCC cases, the pathogenesis of calcification in BCC has not yet been studied. Objective: The purpose of this study was to evaluate factors related to the pathogenesis of calcification in BCC. Methods: We performed immunohistochemical staining for β-catenin, frizzled-2, BMP-4, osteopontin, osteocalcin, and osteonectin using frozen skin tissue from 15 cases of BCC with calcification and 11 cases of BCC without calcification. Results: The expression of β-catenin showed positive in 14 of the 15 cases in BCC with calcification, but negative in all 11 cases of BCC without calcification. The expression of frizzled-2 was observed in 14 of the 15 cases in BCC with calcification, and in 10 of the 11 cases in BCC without calcification. The difference did not reach statistical significance (p=0.236). The expression of BMP-4 was observed in all 26 samples of BCC, but the intensity of expression did not reach statistical significance between the two groups (p=0.293). Furthermore, osteopontin and osteocalcin showed no statistical significance between two the groups (p=0.567, p=0.401). The expression of osteonectin was observed in all of the BCC cases, and was stronger in BCC with calcification than in BCC without calcification (p=0.042). Conclusion: We suggest that the calcification in BCC might be related to the increase of β-catenin expression and that osteonectin might also influence the process of calcification in BCC. (Korean J Dermatol 2007;45(7):666∼672)

Notes on Six Unrecorded Indigenous Species of Filamentous cyanobacteria (Cyanophyceae, Cyanophyta) in Korea

Yim, Byoung Cheol,Song, Mi Ae,Bang, Sung Do,Yoon, Sung Ro,Lee, Ok Min Korean Society of Environmental Biology 2017 환경생물 : 환경생물학회지 Vol.35 No.3

Samples were collected between August 2016 and May 2017 at Sangju-si, Gyeongsangbuk-do, Jeju-do, and Uljin-gun, Gangwon-do. As a result, one genus and six species were newly recorded in Korea. The unrecorded indigenous genus was Borzia, and the six species were Anagnostidinema acutissimum, Komvophoron bourrellyi, Hydrocoleum stankovicii, Borzia trilocularis, Phormidium tinctorium and Pseudanabaena lohchoides. Phormidium tinctorium and Pseudanabaena lohchoides had been reported to inhabit freshwater, but in this study, these were found in brackish water. It had also been reported that B. trilocularis trichomes are composed of up to 8 cells, but in this study, a maximum of 10 cells was observed.

Notes on Six Unrecorded Indigenous Species of Filamentous cyanobacteria (Cyanophyceae, Cyanophyta) in Korea

Byoung Cheol Yim,Mi Ae Song,Sung Do Bang,Sung Ro Yoon,Ok Min Lee 한국환경생물학회 2017 환경생물 : 환경생물학회지 Vol.35 No.3

Samples were collected between August 2016 and May 2017 at Sangju-si, Gyeongsangbuk- do, Jeju-do, and Uljin-gun, Gangwon-do. As a result, one genus and six species were newly recorded in Korea. The unrecorded indigenous genus was Borzia, and the six species were Anagnostidinema acutissimum, Komvophoron bourrellyi, Hydrocoleum stankovicii, Borzia trilocularis, Phormidium tinctorium and Pseudanabaena lohchoides. Phormidium tinctorium and Pseudanabaena lohchoides had been reported to inhabit freshwater, but in this study, these were found in brackish water. It had also been reported that B. trilocularis trichomes are composed of up to 8 cells, but in this study, a maximum of 10 cells was observed.

Examination of Bisphenol A Content in Childrens Canned Drink Products in Jeju Markets

Do Seung Lee,Hyun-Jeong Oh,Mi-Kyung Kim,Jung-Hwa Byun,Chan-Ok Ko 한국식품영양과학회 2022 한국식품영양과학회 학술대회발표집 Vol.2022 No.10

Eight Taxa of Newly Recorded Species of Chlorophytes (Chlorophyceae and Trebouxiophyceae, Chlorophyta) in Korea

Mi Ran Kim,Jee Hwan Kim,Do Hyun Kim,Ok Min Lee 한국환경생물학회 2018 환경생물 : 환경생물학회지 Vol.36 No.3

In 2017, the freshwater algae were collected from reservoirs, small ponds, soil, and rocks in Korea. Eight taxa of Chlorophyta (Chlorophyceae and Trebouxiophyceae) have been newly reported in Korea. The unrecorded indigenous species were Chlorolobion braunii, Coelastrum pseudomicroporum, Coelastrum reticulatum var. cubanum, Monoraphidium nanum, Tetrachlorella incerta, Ecdysichlamys obliqua, Gloeotila scopulina, and Stichococcus jenerensis.