http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
건물에너지 저감을 위한 PCM/diatomite composites의 제조 및 특성 분석
전지수(Jeon Ji-Soo),정수광(Jeong Su-Gwang),김수민(Kim Su-Min) 한국태양에너지학회 2012 한국태양에너지학회 학술대회논문집 Vol.2012 No.3
This paper deals with the thermal performances of PCM/diatomite composites for energy saving. The PCM/diatomite composites were prepared by incorporating PCMs in the pores of diatomite to increase form stability of PCMs. In experiment, we used the hexadecane, octadecane and paraffin as PCM and they have each 254.7 J/g, 247. J/g and 144.6 J/g of latent heat capacity, and those melting points are 20.84 ℃, 30.40 ℃ and 57.09 ℃, respectively. Thermal properties of PCM/diatomite composites were determined by using DSC. And PCM/diatomite composites were characterized by SEM and FTIR analysis. The results showed that the PCMs are well infiltrated into the structure of diatomite andt he latent heat capacity of PCM/diatomite composites was obtained by 40% of pure PCMs
컴퓨터 단층 촬영 영상에서의 전이성 척추 종양의 정량적 분류를 위한 라디오믹스 기반의 머신러닝 기법
이은우,임상헌,전지수,강혜원,김영재,전지영,김광기,Lee, Eun Woo,Lim, Sang Heon,Jeon, Ji Soo,Kang, Hye Won,Kim, Young Jae,Jeon, Ji Young,Kim, Kwang Gi 대한의용생체공학회 2021 의공학회지 Vol.42 No.3
Currently, the naked eyes-based diagnosis of bone metastases on CT images relies on qualitative assessment. For this reason, there is a great need for a state-of-the-art approach that can assess and follow-up the bone metastases with quantitative biomarker. Radiomics can be used as a biomarker for objective lesion assessment by extracting quantitative numerical values from digital medical images. In this study, therefore, we evaluated the clinical applicability of non-invasive and objective bone metastases computer-aided diagnosis using radiomics-based biomarkers in CT. We employed a total of 21 approaches consist of three-classifiers and seven-feature selection methods to predict bone metastases and select biomarkers. We extracted three-dimensional features from the CT that three groups consisted of osteoblastic, osteolytic, and normal-healthy vertebral bodies. For evaluation, we compared the prediction results of the classifiers with the medical staff's diagnosis results. As a result of the three-class-classification performance evaluation, we demonstrated that the combination of the random forest classifier and the sequential backward selection feature selection approach reached AUC of 0.74 on average. Moreover, we confirmed that 90-percentile, kurtosis, and energy were the features that contributed high in the classification of bone metastases in this approach. We expect that selected quantitative features will be helpful as biomarkers in improving the patient's survival and quality of life.
치매환자 자녀의 부양부담이 배우자폭력에 미치는 영향-우울의 매개효과 검증-
김재엽 ( Kim Jae Yop ),황현주 ( Hwang Hyun Joo ),전지수 ( Jeon Ji Soo ) 한국가족사회복지학회 2016 한국가족복지학 Vol.53 No.-
본 연구는 치매환자 자녀의 부양부담이 배우자폭력에 미치는 영향을 파악하고 우울의 매개효과를 검증하여 사회복지적 개입방안을 찾고자 한다. 이를 위하여 서울, 경기, 부산의 각 지역 데이케어센터 및 요양기관의 치매환자와 가족을 대상으로 조사를 실시하였다. 전체 응답자 중 기혼인 치매환자의 자녀 223명의 자료를 최종 분석에 활용하였고, 빈도분석, 평균비교 및 상관관계분석 그리고 회귀분석을 실시하였다. 최종적으로 우울의 매개효과의 유의성을 검증하기 위하여 부트스트래핑(bootstrapping)을 실시하였다. 연구결과, 조사대상자의 37.6%, 즉 3명 중 1명 이상의 치매환자 자녀가 배우자에게 지난 1년간 적어도 한차례 이상 정서적 폭력이나 신체적 폭력을 행사한 것으로 나타나 배우자폭력 수준이 매우 심각한 것으로 조사되었다. 또한 조사대상자의 우울 평균은 1.00으로 일반인(M=0.73)보다 높은 수준이었으며, 여성이 남성보다 부양부담이 더 많은 것으로 나타났다. 한편 치매환자 자녀의 부양부담은 배우자폭력에 정적인 영향을 미쳤으며, 부양부담과 배우자폭력의 관계에서 매개변수인 우울은 완전매개효과가 있는 것으로 확인되었다. 이러한 연구결과를 바탕으로 부양부담, 우울을 줄이고 배우자폭력을 예방하기 위한 정책적·실천적 개입 방안을 제시하였다. The purpose of this study was to examine the relationships among caregiving stress, depression, and partner violence by gender. Data were gathered though questionnaires surveying 223 cases living in the Seoul and Kyeonggi, Pusan areas. In analyzing precess, the researchers used t-test, ANOVA, correlation and regression. Additionally, bootstrapping was used to verify the significant mediating effect of depression. The findings are follows: First, approximately 37.3 percent of adult children caregivers reported having experienced partner violence in the past year. And the depression mean score among adult children caregivers was 1.00, higher compared to 0.73 of general population. Female caregiving burden and depression level was higher than those of male. Second, the results from regression analysis revealed that caregiving stress influenced to partner violence positively. Depression has the full mediating effect between caregiving stress and partner violence. The results suggest a necessity of intervention to reduce caregiving stress, depression and prevent partner violence in the dementia caregiver`s family. The implications for social work practice were also discussed.