• Journal of Chest Surgery
• /
• 제25권5호
• /
• pp.550-554
• /
• 1992

The selection of an appropriate surgical technique for repair of aneurysm of the ascending aortia with aortic insufficiency is unsettled. The etiology of the disease process has been the best indicator for the type of repair. Placement of a supracoronary graft[seperate graft and valve] is a compromise if the coronary ostia are displaced cephalad by the aneurysm, where as insertion of a valved conduit is difficult and unnecessary if the coronary ostia are normally placed. A 53 year old female patient underwent primary repaiar of proximal dissected layer and aortic valve replacement with 24mm carbomedics, The operative findings consisted of a supravalvular intimal tear, cicumferential dissection, dilated aortic annulus and normal position of coronary ostia. She is good physical activity now llmonths posoperatively.

• Advances in environmental research
• /
• 제3권2호
• /
• pp.131-149
• /
• 2014

Two different model selection indices, the Akaike information criterion (AIC) and the coefficient of determination ($R^2$), are used to discriminate competing isotherm equations for aqueous pollutant removal systems. The former takes into account model accuracy and complexity while the latter considers model accuracy only. The five types of isotherm shape in the Brunauer-Deming-Deming-Teller (BDDT) classification are considered. Sorption equilibrium data taken from the literature were correlated using isotherm equations with fitting parameters ranging from two to five. For the isotherm shapes of types I (favorable) and III (unfavorable), the AIC favors two-parameter equations which can easily track these simple isotherm shapes with high accuracy. The $R^2$ indicator by contrast recommends isotherm equations with more than two parameters which can provide marginally better fits than two-parameter equations. To correlate the more intricate shapes of types II (multilayer), IV (two-plateau) and V (S-shaped) isotherms, both indices favor isotherm equations with more than two parameters.

• 한국정보처리학회:학술대회논문집
• /
• 한국정보처리학회 2012년도 추계학술발표대회
• /
• pp.722-725
• /
• 2012

최근 이슈가 되고 있는 클라우드 컴퓨팅, 빅데이터, 모바일 등 다양한 분야에서 공개SW 기반 시스템을 도입하여 적용하는 사례가 증가하고 있으나, 수많은 공개SW 중 신뢰성 있는 솔루션을 선택하는 것은 많은 시간과 비용이 발생한다. 이에 공개SW 도입 시 고려해야하는 항목을 도출하여 선정지표를 개발하였으며, 실제 공개SW 도입을 위한 조사 및 선정 단계에서 선정지표를 활용하여 업무 적합성, 성숙도 등을 고려한 최적의 공개SW 선정할 수 있는 기준을 제공하고자한다. 또한 선정지표를 활용하여 WEB, WAS, DB 등 공개SW 솔루션에 대한 평가 사례를 살펴보고, 향후 선정지표를 활용할 수 있는 방안을 제안한다.

• 비만대사연구학술지
• /
• 제1권1호
• /
• pp.33-38
• /
• 2022

Although it has been confirmed that excessive body fat increases health risks and all-cause mortality, several epidemiological studies have reported that overweight or obesity in patients with chronic diseases and in older adults is advantageous with respect to mortality. Several mechanisms have been proposed to explain the biological basis of this obesity paradox. The marked heterogeneity of findings observed across studies and the possibility of systematic errors in these studies have cast doubt on the actual existence of the obesity paradox. However, the obesity paradox questioned the validity of body mass index as the best indicator for obesity in terms of predicting its comorbidities and urges clinicians to focus more on changes in body composition and related metabolic derangements, rather than body weight per se.

• 대한디지털의료영상학회논문지
• /
• 제13권2호
• /
• pp.63-69
• /
• 2011

Table strapis patient fixture for securing the patient movements and falls. if it designed to measure the abdominal circumference and used as an indicator of dose selection at CT scan. it will prevent the overexposure of dose without degradation of image quality and efficiently manage dose of each type of body to technician to deal with CT. First, in order to compare the dose used in CT image and qualitative characteristics. reference image is obtained by examining the abdominal phantom in same conditions with the hospital 120 kVp, 200 mAs, D-Dom (Dynamic Dose Of Modulation). SNR, PSNR, RMSE, MAE, CTDIvol of CT images are compared with reference image. for comparing with reference image, the image that Umbilicus level image of Abdomen CT is stored in the PACS were used. For comparison, the top 12 o'clock portion of the air drawn from the same ROI was measured. CTDIvol, mAs, etc. In order to analyze the characteristics of the image, by measuring the length of the umbilicus circumference, pattern of the dose was analyzed. by using the analyzed perimeter and dose information, To be identified visually, fixed band that scale marked were produced. Use them, If the length of circumference of less than 60 cm 100 mAs, Case of 61~80 cm 120 mAs, Case of 80~100 cm 150 mAs, more than 100 cm 200 mAs, dose selection based on the perimeter, the image was applied. by compare analyzed with the Reference Image, image quality was assessed. by compare with existing tests that equally 200 mAs applied, How much was confirmed that the dose reduction. 1. Depending on the Abdominal circumference, the average PSNR(dB) of the image that differently dose applied was 45.794. 2. Comparing with existing test. the dose of scan that adjusted the mAs depending on the circumference was decreased about 40%. SNR and PSNR of the image that obtained by adjusting the standard mAs based on dose modulation were not much different. Therefore, By choosing a low mAs. dose reduction can be obtained. and the dose selection method that measured Abdominal circumference using a fixed band can protect the overexposure and uniformly apply dose of each type of body to technician to deal with CT.

• 한국농림기상학회지
• /
• 제5권1호
• /
• pp.6-10
• /
• 2003

본 연구는 층층나무를 대상으로, 엽 내에서 측정한 MDA 함량을 기준으로 오존 내성 개체를 선발하고자 수행하였다. 또한 각종 오염물질에 대한 내성을 평가 하기 위해 MDA 함량을 이용하는 것이 타당한지를 검토하고자 하였다. 실험에 사용된 층층나무는 오대산(5본), 치악산(5본), 점봉산(5본), 주왕산(1본), 태백산(1본), 지리산(5본), 소리봉(5본), 속리산(4본), 소백산(4본), 계방산(4본) 등 9개 지역에서 채취한 종자를 이용하였으며, 오존 처리는 100 ppb에서 하루 8시간 씩 10주 동안 실시하였다. 오존 처리가 종료된 후, 층층나무의 수고와 MDA 함량을 측정하였고, 수고와 MDA 함량간의 관계를 분석 하였으여, 수고와 MDA 함량의 표준화 지수를 이용하여 오존에 대한 내성그룹, 중간그룹, 민감성그룹을 각각 30개체씩 선발하였다. 오존 처리된 층층나무의 수고와 MDA 함량은 가계간, 지역간 차이를 보여주었으며, MDA 함량은 수고생장과 역상관(r=-0.531, p$\leq$0.001)을 나타냈다. 개체별 수고와 MDA 함량을 기준으로 선발한 층층나무는 내성그룹과 민감성 그룹간 수고와 MDA 함량 차이가 뚜렷하였다. 따라서 MDA 함량은 오존에 대한 내성 및 민감성을 구분하는데 유용하게 이용될 수 있을 것으로 판단된다.

• 한국환경복원기술학회지
• /
• 제19권1호
• /
• pp.85-100
• /
• 2016

Local Agenda 21 organizations have been founded at the most divisions of local government in Chungcheongbuk-Do, but there has been no methods to monitor the total Sustainable Development trends. For the alternative solution of that problem in the Province, this study purposed (1) to develop Indicators fit to this Province (2) to examine the availability of the developed indicators adopting to each division section. Indicators were developed and examined by fields and Quantity / Quality considerations. As a 1st step, committee-composed with field professionals each-selected and developed Quantitative Sustainable Development Indicators(SDIs) optimized to Chungbuk-Province through critical discussions proposing Qualitative Indicators as a suggestion. In 2nd step, developed Indicators were applied and tested upon each divisions. Statistic data were used to calculate indices. 3rd step is adoption stage of Qualitative Indicators which were tested with questionnaire survey analysis. As a results, SDIs for Chungcheongbuk-Do -38 Quantitative SDIs within 4 provisions of 11 items with 8 Qualitative indicators categorization be put off- is developed. With the application test, 5 Quantitative Indicators- were found to be not adaptable because of lack or none of statistic data. Among the 8 Qualitative Indicators, 3 pairs found to be similar results in each pair which needed to be integrated into one. With them, bio-species related and health related Indicators were proposed to be newly added. Nation wide Sustainability comparison between divisions and Ecological Indicator selection are another themes to be considered.

• 동의생리병리학회지
• /
• 제30권1호
• /
• pp.61-65
• /
• 2016

The purpose of this study is to examine the relationship between Myers-Briggs Type Indicator(MBTI) personality type and academic achievement of Korean medical students. A total of 97 (57 men, 40 women; ages 24 to 36) fourth-year Korean medical students participated in this study. The MBTI questionnaire was administered to all the students for identification of their personality type and academic performance. The results are as follows. First, the proportions of Personality type of Korean medical students were Extroversion (E) 33.0% - Introversion (I) 67.0%, Sensing (S) 70.1%- Intuition (N) 29.9%, Thinking (T) 58.8%- Feeling (F) 41.2%, and Judging (J) 54.6% - Perceiving (P) 45.3%. Second, the most common personality type was ISTJ (22.7%), followed by ISTP (13.4%), ISFJ (12.3%). Third, according to the analysis of this study, academic achievement was significantly related with their personality type in the preference : Sensing (S) - Intuition (N) and Judging (J)-Perceiving (P). In analysis of Sensing (S) - Intuition (N) and Judging (J)-Perceiving (P) index, Sensing (S) and Judging (J) type students had higher academic achievement than Intuition (N) and Perceiving (P) type students. This is the study to identify the characteristics of MBTI in Korean Medical students. The findings indicate that academic achievement was significantly related to their personality type in the preference. Using the results of MBTI in Korean medical students, is helpful in selection of appropriate teaching and learning strategies to provide better education.

• 농촌계획
• /
• 제16권4호
• /
• pp.117-129
• /
• 2010

This study is to make value estimating system to valuate prototype landscape of rural and to derive itemized importance to select priority preservable object The results of the study are summarized as follows, It is examined value estimating standard by analyzing prototype landscape related previous study, law and order. Also, It is derived conclusive prototype landscape value estimating system by doing attribute assessment of preserving objects while surveying the site and interviewing professionals, Value estimating system is classified into five items of physical value which are integration, harmony, diversity, symbolism and aesthetics, The historical-cultural value are divided into four categories which are religious value, originality, historicity and scarcity, The communal values are divided into three categories which are sociality, continuing and regional locality and also divided into three categories which are rarity, primitiveness and diversity as the ecological value, Relative priority of prototype landscape value estimating system result is derived as historical-cultural value as the superior position and physical value, communal value and ecological value as the priority order. In the subordinate, historical categories are derived to be the most valuable and originality, symbolism, integration, regional locality, continuing, harmony, aesthetics, religious value, primitiveness, diversity of physical values and diversity of ecological value in order of the priority assessment The results of the study have the meaning of practical use in prior selection and preservation plan of preserving prototype landscape as practical alternative plan for systematical preservation of damaging prototype landscape.

• 한국산학기술학회논문지
• /
• 제20권6호
• /
• pp.188-200
• /
• 2019

본 연구의 목적은 교육복지우선지원사업 성과지표 개발 연구의 연장선으로, 학교 현장에의 적용을 위해 내용타당도를 확보하는 것이다. 본 연구에 사용된 교육복지우선지원사업 성과지표(안)은 6개 대영역, 33개 하위영역, 233개 문항으로 구성되었다. 교육복지 분야 박사급 전문가 5인을 대상으로 2회의 전문가 회의를 실시하였고, 현장에서 5년 이상 근무한 교육복지사 99명을 대상으로 델파이조사를 실시하였다. 문항 선정 기준($CVR{\geq}.29$, $CVI{\geq}.80$, 수렴도<.50, 합의도${\geq}.05$, 안정도${\leq}.80$, $M{\geq}3.00$, SD<.80, 신뢰도${\geq}.6$)을 적용하여, 6개 대영역, 23개 하위영역, 93개 문항에 대해 타당성을 확보하였고, 이 중 신뢰도가 낮은 3문항을 제외하여 최종 90문항으로 확정하였다. 교육복지우선지원사업 성과지표가 현장에서 보다 유용하게 활용되기 위한 제언과 후속 연구를 제시하였다.