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.

일 부대 현역 사병들에서 입대 전 인터넷 사용 정도와 정신건강과의 관계

김선미,박철수,손진욱,김봉조,차보석,이철순,Kim, Sun-Mi,Park, Chul-Soo,Sohn, Jin-Wook,Kim, Bong-Jo,Cha, Bo-Seok,Lee, Cheol-Soon 대한불안의학회 2010 대한불안의학회지 Vol.6 No.2

Objective : The purpose of this study was to survey the degree to which people use the Internet prior to joining the army and mental health. Methods : The author assessed Internet addiction and mental health using an Internet addiction diagnostic scale for soldiers and the Symptoms Check-list-90. A total of 508 subjects were included in the final analysis. Collected data were analyzed by independent t-test. Results : The Internet addiction risk group (n=19, 3.7%) had significantly higher mean scores for obsessive-compulsion (t=-2.43, p=0.02) and interpersonal-sensitivity subscales (t=-2.30, p=0.03) than the control group. Conclusion : Internet addiction was related to soldiers' mental health. An assessment focused on internet use would be useful in the evaluation of a person potential adaptation to the military.

전기화학적 제조를 통한 나노다공성 텅스텐 산화물 성장의 전열처리 영향

김선미,김경민,최진섭,Kim, Sun-Mi,Kim, Kyung-Min,Choi, Jin-Sub 한국전기화학회 2011 한국전기화학회지 Vol.14 No.3

본 연구에서는 텅스텐 금속박막을 $200^{\circ}C$에서부터 $600^{\circ}C$의 온도 구간에서 전열처리 (Preannealing) 한 후에, 빛의 조사 유무에 따라 양극산화를 진행하여 생성된 텅스텐 산화물의 표면과 두께에 대해 관찰하였다. 결과적으로 6시간의 동일한 반응시간 동안, $400^{\circ}C$에서 전열처리 한 후에 빛의 조사 없이 양극산화 하였을 때, $1.83{\mu}m$ 두께의 텅스텐 산화물을 제조할 수 있는 것을 발견하였다. 더욱이 전열처리를 하게 되면 더 두꺼운 산화물을 제조 할 수 있으나, 빛을 조사하게 되면 전열처리에 의해 생성된 산화물을 결정화시켜 오히려 산화물 성장에 방해가 되었다. 이러한 차이점에 대해 결정구조 및 메커니즘에 근거하여 설명하였다. We describe that the surface and thickness of nanoporous $WO_3$ fabricated by both light-induced and light-absent anodization are affected by pre-annealing process from $200^{\circ}C$ to $600^{\circ}C$. As a result, the nanoporous $WO_3$ with a thickness of $1.83{\mu}m$ can be achieved by anodization for 6 hours after pre-annealing at $400^{\circ}C$ without illumination of light. Moreover, the thickness of nanoporous $WO_3$ fabricated by pre-annealing is thicker than that of $WO_3$ prepared by non-annealing process. However, the light illumination during anodization leads to convert the crystalline structure obtained by pre-annealing, which interfere the growth of nanoporous $WO_3$. In this paper, we discuss about the growth mechanism of these different nanoporous $WO_3$ films.

장떡과 소설가 황석영

김선미,Kim, Seon-Mi 한국식품연구원 2008 한맛한얼 Vol.1 No.4

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.

예술 속으로 - 스페인식 감자 오믈렛과 화가 살바도르 달리

김선미,Kim, Seon-Mi 한국식품연구원 2009 한맛한얼 Vol.2 No.1

가상박물관 활용을 통한 박물관 전문인력의 디지털 역량 강화 방안 연구

김선미,이종욱,Kim, Seon-Mi,Lee, Jong-Wook 한국콘텐츠학회 2022 한국콘텐츠학회논문지 Vol.22 No.10

The overall digital transformation in society is rapidly progressing with the corona virus epidemic. In particular, in the field of cultural heritage and museums, digital transformation is taking place throughout the preservation, management, and utilization of cultural heritage. To respond to this, the importance of cultivating the digital literacy of museum professionals to select and utilize digital cultural heritage information is increasing. However, the current digital capacity education of museum professionals has not reached the cultivation of digital literacy due to one-way theory and one-way practical education. To overcome this, we propose a digital capacity building program using virtual museums. We propose a curriculum based on participatory museums, cooperative learning, and project-based learning theories. Learners experience the entire process of acquiring, selecting, and utilizing digital cultural heritage information through individual, cooperative, constant, exhibitions, and project-based learning programs. We were evaluated by experts in terms of education, museum education, and ICT technology education to prove its usability and derive improvements. This study will contribute to building the digital capacity of museum professionals.

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.

간호단위 관리자의 변혁적 리더십 선행요인에 대한 체계적 문헌고찰 및 메타분석

김선미,Kim, Sunmi 한국디지털정책학회 2021 디지털융복합연구 Vol.19 No.4

본 연구는 국내 간호단위 관리자의 변혁적 리더십 선행요인들에 대한 메타분석을 실시하여 이들 변인들의 관계를 통합하여 제시하고자 시도되었다. 본 연구는 PRISMA 지침에 따라 국내·외 데이터베이스를 통해 문헌을 수집하였으며, 최종적으로 선정된 23편의 문헌에 대한 변혁적 리더십과 선행요인간의 상관관계 효과크기를 산출하였다. 연구결과 23편 연구의 전체 효과크기는 ESzr=.54로 큰 효과크기였다. 변혁적 리더십 선행요인들을 개인·심리군, 직무관련 변인군, 조직관련 변인군의 세 개의 범주로 분류하였으며, 그 중 조직관련 변인군의 효과크기가 ESzr=.56으로 가장 큰 효과 크기를 나타냈다. 본 연구는 변혁적 리더십을 발휘하기 위해 선행되는 요인들에 대한 효과크기를 메타분석을 통해 검증하였으며, 본 연구의 결과는 간호 관리자의 변혁적 리더십 향상을 위한 중재 프로그램 개발 시 근거가 되는 기초자료로 활용될 수 있을 것으로 기대한다. The purpose of this study was attempted to conduct a meta-analysis on the antecedents factors of transformational leadership of nursing unit managers. Literature was collected according to the PRISMA guidelines, and the antecedent factors of 23 studies were analyzed. The results showed that the total 23 studies large effect size (ESzr=.54). Antecedent factors were classified into three categories, and the organization-related variables group had the largest effect size (ESzr=.56). This study is an integrated presentation of the effect size of the antecedent factors of transformational leadership through a meta-analysis and the results of this study are expected to be used as a basis for developing intervention programs for nursing unit managers' transformational leadership improvement.

맞벌이 부부의 가사노동에 관한 질적 연구 - 초등학생 자녀를 둔 맞벌이 부부를 중심으로

김선미,장상옥,Kim, Seon-Mi,Jang, Sang-Ock 한국가족자원경영학회 2005 가족자원경영과 정책 Vol.9 No.3

The purpose of this study is to identify the characteristics of the household labors that are performed by dual income families. The methodology that has been applied in this study was a qualitative research based on in-depth interviews of a total of 10 people(8 housewives, 2 husbands) selected from the 8 different families. The 8 different families have been selected in order to identify the different family lives and the various household labor patterns that are conducted by both the working husband and the working wife. As a result, we have found out that working wives still had to manage their time in an extremely busy manner in order to balance their professional work with their household tasks. However, the household work that was being shared by the husbands also seemed to vary dynamically according to the different family situations. Although, it has shown that household tasks are divided by the person's sex, the amount of household tasks that are shared tended to increase according to the life cycle of each family.