• Korean Journal of Geomatics
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• 제1권1호
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• pp.15-20
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• 2001

In this study, several basic data for road design and GIS data were used for selecting the optimized road alignment database system. The cut and fill volumes were compared with existing manual road design method through the analysis and data application in this database system. We solved and estimated objective, economic, environmental and technical problems caused in road construction comparing existing manual method with the road alignment which was selected in GIS automatically. Also, we performed three dimensional simulation with the existing road design program and simulation of virtual reality through Virtual GIS. This study showed the method in selecting the optimized road alignment through the analysis and comparison of the selected road alignment. The goal of this study is comparison and analysis of definite cut and fill volume and environmental problem after the road construction through analyzing and comparing the social, economic, technical and environmental aspect in the road alignments with various statistic data.

• 농업과학연구
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• 제44권3호
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• pp.424-439
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• 2017

This study was undertaken to examine the profit efficiency and its determining factors, the investment opportunity, and the challenges of shea butter producers in the northern region of Ghana. The methods employed in this research were the Stochastic Profit Frontier (SPF) model, gain-cost and investment return analyses, as well as Kendall's W statistic using primary data collected from 120 purposively-selected respondents. Results from the analysis indicated that profit efficiency was positively influenced by sex, household size, marital status, educational level, transportation cost, store rent, and price of shea nut with a gain in profit efficiency of 58.5%. The investment analysis demonstrated a net gain per person of $8,077 equivalent to GH₵ 28,270 Ghanaian cedi (GH₵) using 2016 exchange rate (GH₵ 3.5 = $1). Among the challenges identified, the poor quality of shea nuts was the most prioritised challenge with 72.8% agreement among the respondents. Based on these findings, it was recommended that proper training and education, as well as improvement in shea nut quality, should be promoted to improve the profit efficiency of shea butter producers.

• 근관절건강학회지
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• 제28권1호
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• pp.61-69
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• 2021

Purpose: This study investigated the mediating effect of perceived stress in the relationship between subjective health and depression in patients with coronary artery disease. Methods: This secondary analysis study used data from the 2016-2018 Korea National Health and Nutrition Examination Survey (KNHANES). Study participants included 466 patients over 20 years of age with coronary artery disease. Measures included questions about general characteristics, subjective health, perceived stress, and depression. The data were analyzed using complex sample design, descriptive analysis, Rao-Scott ��2 statistic, and multivariate logistic regression analysis with the SPSS 24.0 program. Results: Subjective health influenced depression, and perceived stress partially mediated it. Conclusion: To prevent depression in patients with coronary artery disease, it is necessary to develop effective stress management strategies.

• 디자인융복합연구
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• 제13권6호
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• pp.137-152
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• 2014

소셜커머스 업체 간의 과열된 경쟁을 고려해 볼 때, 소셜커머스 기업이 경쟁우위를 차지하기 위해서 소비자들이 소셜커머스 서비스의 어떤 부분은 중요시 여기며, 소비자와 업체 간의 관계가 지속되기 위해서 어떤 부분을 개선해야 되는지 파악해야 한다. 따라서 본 연구는 선행연구를 기반으로 소셜커머스를 이용하는 소비자가 중요하게 고려하는 이용 동기 요인을 경제성, 편의성, 정보획득, 쾌락성, 사회성으로 구분하였으며, 이러한 요인과 재이용의도 사이에 매개 역할을 하는 요인으로 만족도를 설정하여 재이용의도에 영향을 미치는 요인을 탐색하고 정(正)의 영향을 미치는 요인을 파악하는데 초점을 두었다. 또한 통계분석에서 도출해 내지 못한 유의미한 결과도 도출하기 위해 통계적 분석과 시각적 분석을 병행하여 진행하였다. 실험은 공동구매형 소셜커머스를 이용한 경험이 있거나 현재 이용 중인 소비자를 대상으로 실시하였으며 실증분석과 시각화 분석을 실시하였다. 연구 결과로는 만족도 요인은 재이용의도 요인과 밀접한 관계에 있다는 결과와 5가지 이용 동기 요인 중에서는 경제성이 가장 정(正)의 영향을 많이 미친다는 결과를 도출하였으며 통계적 분석과 시각적 분석을 병행하여 진행할 경우 데이터 간의 관계 파악이 용이하다는 결론을 제시하였다.

• 한국산학기술학회논문지
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• 제11권1호
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• pp.352-360
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• 2010

본 연구는 자연친화적인 힐클라임 스포츠 참가자의 참가동기, 몰입경험이 자아성취감과 생활만족에 미치는 영향을 규명하는데 그 목적이 있다. 이러한 목적을 달성하기 위하여 본 연구에서는 강원도 대관령과 미시령 힐클라임 대회에 참여하고 있는 성인 남녀를 대상으로 206명을 표집하여 SPSS/PC+ 11.0 Version과 AMOS 7.0을 사용하여 통계분석을 실시하였다. 이 연구의 결론은 다음과 같다. 첫째, 자연친화적 힐클라임 스포츠 참가자의 참가동기, 몰입경험, 자아성취감 및 생활만족에 대한 기술통계분석 결과 비교적 높게 나타났다. 둘째, 자연친화적 힐클라임 스포츠 참가자의 참가동기, 몰입경험, 자아성취감 및 생활만족 간의 관계를 알아보기 위해 Pearson의 적률 상관분석을 실시한 결과, 참가도기는 생활만족에 양(+)의 상관관계가 있으며, 몰입경험은 자아성취감에 양(+)의 상관이 있는 것으로 나타났다. 셋째, 자연친화적 힐클라임 스포츠 참가자들의 참가동기와 생활만족, 몰입경험과 자아성취감 간에는 인과적 관계가 있는 것으로 나타났다. 이러한 결과들로 보아 정부나 지역자치단체에서 지역주민들이 자연친화적인 환경에서 운동을 통한 삶의 질을 높일 수 있은 방향으로 정책을 펼쳐야 한다.

• 생약학회지
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• 제39권3호
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• pp.179-185
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• 2008

Three species, such as Rheum palmatum L., R. tanguticum Maxim. and R. officinale Baillon are recognized as the source plants of Rhei Rhizoma in Korean Pharmacopeia. However, other herbal sources such as R. undulatum L. and Rumex crispus L. have been often misused as Rhei Rhizoma. A pattern analysis method to discriminate Rhei Rhizoma in Korean Pharmacopeia from other herbal plants using HPLC and TLC chromatograms was developed. The multivariate peak data of the chromatograms of methanol extracts of Rhei Rhizoma were used for hierarchical clustering analysis, principal components analysis and similarity calculation. Besides of the statistic analysis, TLC patterns of samples could be used as criteria of the discrimination. The developed pattern analysis method was specific and could be readily utilized for comprehensive evaluation of Rhei Rhizoma.

• 한국안전학회지
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• 제30권5호
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• pp.52-58
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• 2015

Although lots of safety inspection and precision safety diagnosis have been conducted on concrete retaining wall, there is no comprehensive analysis on the basis of the accumulated data associated with the statistic. Especially, the concentrated management is necessary on the evaluation items that cause critical damages for the efficient performance. In this regard, this study conducted a correlation analysis between the 18 condition evaluation items and defect index for the concrete retaining wall as well as how each item affects the final defect index as much as in the manual. As a result, correlation coefficient between sliding and overturning was 0.601, which means that they have a strong correlation, and the most influential item on defect index is the condition of drainage that scored the 0.750 correlation coefficient. In addition, as a result of regression analysis, the condition of drainage with the 0.683 correlation coefficient has a strong correlation with the defect index. If the condition evaluation items are integrated or readjusted based on the results of the statistical analysis in this study, the more efficient and accurate maintenance will be possible.

• 한국사회복지학
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• 제63권1호
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• pp.267-289
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• 2011

본 연구의 목적은 Antonak(1982)이 개발한 SADP and ATDP-O(Scale of Attitudes for Disabled Persons and Attitudes towards Disabled Persons Scale-Original)척도의 타당도를 검증하고 국내에서의 활용방안을 모색하는 것이다. 이를 위해 공무원, 의료인, 교사, 언론인, 장애인복지시설 종사자로 구성된 표적집단과 일반집단으로 구분한 비장애인 500명을 표집하여 척도의 타당도 및 신뢰도를 검증하고, 표적집단과 일반집단 간의 장애인에 대한 태도 차이를 비교하였다. 탐색적 요인분석 결과, 원 척도는 '염세주의-고정관념', '낙관주의-인권', '손상된 성격' 세 가지 차원의 15개 문항으로 정리되었고, 확인적 요인분석 결과, 재구성한 척도의 적합성은 수용할만한 수준(good/reasonable fit)인 것으로 나타났다. 전체척도의 Cronbach's ${\alpha}$ 값은 .8이 넘어 안정적인 신뢰도를 보였으며, DFS(Disability Factor Scale)와는 전반적으로 높은 수준에서 통계적으로 유의미한 상관관계를 나타내 수렴타당도가 확보되었다. 또한 표적집단이 일반집단보다 장애인에 대해 긍정적인 태도를 지닌 것으로 나타났다. 본 연구에서 타당도가 검증된 도구는 다양한 장애유형에 활용할 수 있도록 장애유형별 검증이 필요하며, 척도의 활용으로 장애인에 대한 태도를 개선하기 위한 임상적, 실천적 방안이 모색되어야 할 것이다.

• 상하수도학회지
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• 제37권5호
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• pp.261-269
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• 2023

In light of recent social concerns related to issues such as water supply pipe deterioration leading to problems like leaks and degraded water quality, the significance of maintenance efforts to enhance water source quality and ensure a stable water supply has grown substantially. In this study, scan statistic was applied to analyze water quality complaints and water leakage accidents from 2015 to 2021 to present a reasonable method to identify areas requiring improvement in water management. SaTScan, a spatio-temporal statistical analysis program, and ArcGIS were used for spatial information analysis, and clusters with high relative risk (RR) were determined using the maximum log-likelihood ratio, relative risk, and Monte Carlo hypothesis test for I city, the target area. Specifically, in the case of water quality complaints, the analysis results were compared by distinguishing cases occurring before and after the onset of "red water." The period between 2015 and 2019 revealed that preceding the occurrence of red water, the leak cluster at location L2 posed a significantly higher risk (RR: 2.45) than other regions. As for water quality complaints, cluster C2 exhibited a notably elevated RR (RR: 2.21) and appeared concentrated in areas D and S, respectively. On the other hand, post-red water incidents of water quality complaints were predominantly concentrated in area S. The analysis found that the locations of complaint clusters were similar to those of red water incidents. Of these, cluster C7 exhibited a substantial RR of 4.58, signifying more than a twofold increase compared to pre-incident levels. A kernel density map analysis was performed using GIS to identify priority areas for waterworks management based on the central location of clusters and complaint cluster RR data.

• Journal of Chest Surgery
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• 제23권2호
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• pp.236-244
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• 1990

To improve the prognosis of mitral valve replacement surgery, analysis and evaluation of pre and intra operative risk factors will be very much valuable. Author studied 205 cases of mitral valve replacement from Feb 1982 to June 1989 for the risk factors of hospital death. 90 patients were male and 115 were female, and age was from 16 to 59 years, Mitral stenosis dominant lesions were 91 cases and regurgitation 114. Suspected risk factors were NYHA functional class, cardiothoracic ratio, implanted valve type and size, operation time, age and sex, thrombus in left atrium, atrial fibrillation, aortic cross clamping time, left ventricular end diastolic and systolic dimension, nephropathy, hepatopathy and respiratory insufficiency. Statistic analysis was performed by X2 test between survivors and death group. Statistical significances as pre and intraoperative risk factors of hospital death after mitral valve replacement were confirmed in those presence of AF on the EKG, NYHA functional class[>IV], cardiothoracic ratio[>70%], and implanted valve size[>33mm]