Spark plasma sintering을 이용한 수분무 Al-Zn-Mg합금분말의 소결특성

김선미,김택수,김영도,김정곤,Kim, Sun-Mi,Kim, Taek-Soo,Kim, Young-Do,Kim, Jeong-Gon 한국분말야금학회 2009 한국분말재료학회지 (KPMI) Vol.16 No.1

In order to investigate the effect of rapid solidification on the microstructure and the mechanical properties of Al-Zn-Mg system alloys, water atomization was carried out, since the water atomization beared the highest solidification rate among the atomization processes. The as atomized alloy powders consisted of fine grains less than 4 ${\mu}m$ in diameter, and the second particles were not detected on XRD. The microstructure as solidified was maintained even after the spark plasma sintering at the heating rate of 50 K/min. On the other hand, lower rate of 20 K/min induced a formation of $MgZn_2$ particles, resulting in strengthening of the matrix. The density was almost constant at the temperature above 698K. The sintering temperature above 698K had no effect on the strength of the sintered materials.

아동의 내외통제소재와 사회적 능력과의 관계

김선미,정옥분 ( Sun Mee Kim,Ock Boon Chung ) 대한가정학회 1995 Family and Environment Research Vol.33 No.3

상부위장관조영술에서의 위점막표면결절화:일차 원인질환 및 악성종양 병발에 관한 전향적 분석

김선미,김표년,하현권,Kim, Seon-Mi,Kim, Pyo-Nyeon,Ha, Hyeon-Gwon 대한영상의학회 2001 대한영상의학회지 Vol.45 No.4

Purpose: Mucosal surface nodularity was defined as present at UGIS when multiple nodular defects larger than 5 mm were scattered in the gastric mucosa in an area greater than 5 $\times$5 cm. The purpose of this study was to determine the primary causes of this radiographic finding and to assess the incidence of gastric malignancy in these patients. Materials and Methods: During a one-year period we prospectively collected among patients who underwent UGIS, data for 51 [aged 30 -78(mean, 51) years] above who met the criteria of mucosal surface nodularity. Whether or not this was present was decided by two radiologists who in reaching a consensus excluded the possibility of erosive gastritis, indicated by central barium collection in the nodular defects. The primary causes of mucosal nodularity and associated gastric pathologies were determined by the histopathological results obtained from the specimens after surgery (n=18) or endoscopic biopsy (n=33). Results: Pathological examinations revealed that the primary causes of the mucosal nodularity in these 51 patients were intestinal metaplasia in 28 (54.9%), MALT lymphoma in seven (13.7%), early gastric cancer in six (11.8%), chronic gastritis in five (9.8%), low grade dysplasia in four (7.8%), and gastritis cystica profunda in one (2%). Gastric malignancy was present either in or outside the area of mucosal nodularity in 34 (66.7%) of the 51 (27 carcinomas and 7 MALT lymphomas). No different patterns of mucosal surface nodularity were noted between the groups of each disease entity. Conclusion: Mucosal surface nodularity is observed at UGIS in various gastric pathologies. Because of the high incidence of gastric malignancy in these patients, close follow-up or gastrofiberscopic biopsy is mandatory. 목적:상부위장관조영술에서 5 mm 이상의 다발성 결절성 결손이 5 $\times$5 cm이상의 면적에 산재해 있을때를 위점막표면결절화로 정의하고 이런 소견을 보이는 일차 원인질환들을 전향적으로 분석하고 아울러 위암의 병발율을 알아보고자 하였다. 대상과 방법:1년동안 본원에서 상부위장관조영술을 시행받은 환자중 위점막표면결절화를 보인 환자 51명을 대상으로 하였다.두명의 방사선과 의사가 합의하에 위점막표면결절화의 유무를 판단하였고 결절 결손부위에 바륨이 집적되는 미란성위염은 제외하였다.위점막표면결절화의 일차성원인은 수술 (n=18)및 내시경적 조직생검 (n=33)으로 진단하였는데 상부위장관조영술에서는 위점막표면결절의 형태,주름변화,결절의 크기,및 병변의 분포에 대하여 분석하였다. 결과:위점막표면결절화의 일차 원인질환으로는 장화생(intestinal metaplasia)28예 (55%),점막관련림프조직 림프종 7예 (13.7%),조기위암 6예 (11.8%),만성위염 5예 (9.8%),저이형성(low grade dysplasia)4예 (7.8%),및 심재성 낭성위염(gastritis cystica profunda)1예 (2%)였다. 이들 환자들에서 위점막표면결절화를 보이는 부위 또는 그 외의 부위에서 악성병변으로 확진된 예는 51명중 34명으로 67%였는데 27예에서 위선암이었고 7예에서 점막관련림프조직 림프종이었다.점막표면결절화를 보이는 질환군간에는 방사선학적 소견의 차이는 보이지 않았다. 결론:상부위장관조영술상에서 위점막표면결절화를 보이는 원인질환은 다양하다.원인질환의 양성,악성여부를 감별하거나 특이적 진단을 하는데는 상당한 제한점이 있지만 많은 수의 환자에서 악성병변이 원인질환임을 알 수 있었다.따라서 위점막표면결절화의 방사선학적 소견에 익숙해지는 것이 정확한 진단뿐 아니라 결절화의 범위를 결정하고 추가검사를 권유하는 등의 진단적 가치를 높일수 있다.

퓨전 동파육과 소동파

김선미,Kim, Seon-Mi 한국식품연구원 2009 한맛한얼 Vol.2 No.4

The Effect of Depression and Cognitive Function on the Geriatric Oral Health Assessment Index in the Elderly

김선미,Young-Im Kim 한국치위생과학회 2022 치위생과학회지 Vol.22 No.2

Background: Depression and cognitive function have a positive effect on the improvement of quality of life and extension of lifespan in the elderly. In addition, it appears as a major factor influencing oral health status. Therefore, this study looked at the relationship between the Geriatric Oral Health Assessment Index (GOHAI), depression, and cognitive function in the elderly using the Korea Longitudinal Study of Aging.Methods: In this study, 4,535 elderly people aged 65 years and over were targeted using the 7th data of the 2018 Korea Longitudinal Study of Aging. A t-test and ANOVA analysis were performed to compare GOHAI, depression, and cognitive function by group. In addition, hierarchical multiple linear regression was performed to understand the effect of the elderly’s perceived depression scale and cognitive ability on GOHAI.Results: As a result of adding the depression scale and cognitive function variables to Model 2, the explanatory power was 22%. Educational level, marital status, private health insurance subscription, average monthly allowance, subjective health status, use of dentures, smoking status, economic activity, depression scale, and cognitive function were found to have significant influence (p<0.05). In addition, when controlled and viewed with all factors, depression and cognitive function were found to have an effect on oral health-related quality of life.Conclusion: The findings indicate that depression and cognitive function are associated with oral health-related quality of life in the Korean elderly. As the age increases, the quality of life declines due to depression and cognitive function problems, in addition to oral discomfort, eating disorders, and physical discomfort.

당뇨인의 올바른 체질량지수, 표준체중, 복부비만, 비만측정법 어떻게 계산할까?

김선미,Kim, Seon-Mi 사단법인 한국당뇨협회 2006 당뇨 Vol.197 No.-

유방의 노카르디아증: 증례 보고

김선미,박정미,Kim, Seon-Mi,Park, Jeong-Mi 대한영상의학회 2003 대한영상의학회지 Vol.49 No.5

노카르디아증은 주로 면역결핍환자에서 기회감염으로 발생하는 질환으로 유방에 발생하는 경우는 전세계적으로 4예정도가 보고되어 있으며,국내에서는 발표된 바 없다.저자들은 쿠싱씨 병환자에서폐감염과 동반된노카르디아에 의한 유방 농양1예를 경험하였기에그 방사선학적소견을 보고한다.병변은 유방촬영상 유방에 경계가 좋은 관상 음영이 수개 모여 있었으며 초음파 상으로는 유선과 피하지방내에 경계가 불명확하고 불규칙한 모양의 병변으로 보였고,내부에 높은 에코를보이는움직이는찌꺼기들이있었다.m Nocardiosis is an opportunistic infection occurring in immunocompromised patients. Worldwidely, about four cases of nocardiosis of the breast have been previously reported, but none of these were in Korea. We describe a case of breast nocardiosis associated with pulmonary infection in a patient with Cushing's disease. In our patient, multiple, well-defined, conglomerated, tubular-shaped, isodense mass was revealed at mammography, and an irregular-shaped, ill-defined, heterogeneous echoic mass with movable debris at ultrasonography

대학 학술정보 관리를 위한 오픈 액세스 기반 기관 레포지터리 운영방안 연구

김선미,이나니,Kim, Sun-Mi,Lee, Na-Nee 한국과학기술정보연구원 과학기술정보센터 2005 Journal of Information Science Theory and Practice Vol.36 No.2

As circumstances of scholarly communication have been changed over time, there is a growing interest among academic institutions in collecting, preserving, and creating value-added services from digital contents being created by members of the academic community. The purpose of this study is to build an open access based Institutional Repository(IR) in the university for scholarly communication. For this study, this paper analyzes the example of, and makes a full range of process and implementation plan, and then suggests a realistic model of IR which is for dissertations/theses, academic journals, working papers, etc. The intellectual property right issues related to IR are also discussed. 최근 국내외에서는 저널 구독 비용의 증가와 도서관 예산의 삭감, 그리고 대학 및 국가 지식관리의 필요성 등이 제기되면서 누구나 자유롭게 접근할 수 있는 온라인 액세스 기반의 기관 레포지터리 시스템을 도입하려는 시도가 활발하다. 이에 본 연구에서는 대학학술정보 관리를 위한 온라인 액세스 기반의 기관 레포지터리 서비스 운영방안을 살펴보고자 한다. 이를 위해서 개별기관에서의 기관 레포지터리 서비스 사례를 살펴보고, 이를 바탕으로 전체 운영 단계 및 운영방안을 마련한 후, 학위논문, 교내 간행물, 교내 학술행사, 학술지 논문/연구보고서 등에 적용할 수 있는 현실적인 운영방안을 제시하고자 하였다. 이외에 기관 레포지터리 운영시 발생할 수 있는 지적재산권 사항을 살펴보았다.

D-penicillamine을 사용한 환자에서 유방확대: 증례 보고

김선미,Kim, Seon-Mi 대한영상의학회 2004 대한영상의학회지 Vol.50 No.3

D-penicillamine은 구리를 킬레이팅(chelating) 시키는 약물로 윌슨씨 병 치료등에 이용되고, 드문 합병증으로 유방 확대가 나타날 수 있다. 본 증례는 윌슨씨 병 치료를 위해 10개월간 D-penicillamine을 사용한 환자에서 유방확대가 발생한 경우로 유방 촬영술에서 양측 유방의 확대와 치밀유방의 소견을 보였다. 또한 초음파검사에서 양측 유방의 확대와 왼쪽 유방에 결절이 관찰되었지만 조직 검사상 악성의 소견은 없었다. D-penicillamine, a chelating agent of copper, is the drug of choice for the treatment of Wilson’s disease. Breast enlargement is a rare complication arising from its use, and we report a case of breast gigantism which developed after it had been used for ten months to treat this condition. Mammography demonstrated bilaterally enlarged dense breasts; ultrasonography, similarly, demonstrated enlargement, revealing the presence of a mass, shown at biopsy to be benign, in the left one.

System of integrating biosignals during hemodialysis: the CONTINUAL (Continuous mOnitoriNg viTal sIgN dUring hemodiALysis) registry

김선미,윤동환,권순일,Lee So-Ryoung,Kim Kwangsoo,Kim Yong Chul,김동기,Oh Kook-Hwan,주권욱,Lee Hyung-Chul,정철우,김연수,한승석 대한신장학회 2022 Kidney Research and Clinical Practice Vol.41 No.3

Background: Appropriate monitoring of intradialytic biosignals is essential to minimize adverse outcomes because intradialytic hypotension and arrhythmia are associated with cardiovascular risk in hemodialysis patients. However, a continuous monitoring system for intradialytic biosignals has not yet been developed. Methods: This study investigated a cloud system that hosted a prospective, open-source registry to monitor and collect intradialytic biosignals, which was named the CONTINUAL (Continuous mOnitoriNg viTal sIgN dUring hemodiALysis) registry. This registry was based on real-time multimodal data acquisition, such as blood pressure, heart rate, electrocardiogram, and photoplethysmogram results. Results: We analyzed session information from this system for the initial 8 months, including data for some cases with hemodynamic complications such as intradialytic hypotension and arrhythmia. Conclusion: This biosignal registry provides valuable data that can be applied to conduct epidemiological surveys on hemodynamic complications during hemodialysis and develop artificial intelligence models that predict biosignal changes which can improve patient outcomes.