• Spatial Information Research
• /
• 제10권4호
• /
• pp.551-565
• /
• 2002

To carry out systematic groundwater assessment, exploration and management and to use these for protection of optimal groundwater yield, a data analysis and management system is required. Thus, the object of this research was to develop and apply software that integrates GIS and groundwater modeling: GISGAM (GIS for groundwater analysis and management system). The GIS program ArcView and the groundwater-modeling program MODFLOW were used for the GISGAM. The program components consist of a pre-processor, a processor, and a post-processor for groundwater modeling. In addition, GIS functions such as input, manipulation, analysis and output of data were embedded into the program. In applying the program to pilot area, topography, geology, soil, land use and well databases, and a groundwater flow model were constructed for the study area. This case study revealed the advantage and convenience of groundwater modeling using GIS capabilities. By integrating GIS and the groundwater model, the impact of changing values of hydrogeological constants on model results could be more easily evaluated.

• 한국지반공학회:학술대회논문집
• /
• 한국지반공학회 1999년도 가을 학술발표회 논문집
• /
• pp.371-378
• /
• 1999

A prototype computer program was developed which visualizes various kinds of geotechnical information using 3D object graphics techniques. The program integrates various kinds of geotechnical data such as surface geology map, boreholes data, geophysical data as well as man made subsurface structures. It also reads NGIS DXF map and generates digital elevation model from iso-elevation line layer of the DXF map. All the data are put into a 3D model as 3D objects. The created 3D model can be viewed and analysed in a interactive 3D way.

• 한국보육지원학회지
• /
• 제15권3호
• /
• pp.115-133
• /
• 2019

Objective: The purpose of the study was to develop a mathematics education program utilizing food to improve the mathematical abilities of 4-year-olds and to analyze the effects of this program on 4-years-olds' mathematical concepts (number and operation, algebra, geometry, measurement, data analysis, and probability). Methods: The study selected 30 4-year-olds from two daycare centers located in K city. The experimental group (N=15) participated in the mathematics education program utilizing food, 10 times for five weeks, while the comparative group (N=15) participated in the seasonal mathematics education program based on the Nuri Curriculum. The activities of this intervention program were designed to cover all domains of Mathematical Exploratory areas in the Nuri Curriculum. For data processing and analysis, pre-test and post-test score differences between the two groups were analyzed through MANCOVA. Results: The experimental group had significantly higher scores on five mathematical concepts compared with the control group. A mathematics education program utilizing food had the positive effect of improving 4-year-olds' mathematical ability. Conclusion/Implications: Mathematic education programs utilizing food are recommended as necessary pedagogical data to develop the mathematical abilities of children in education centers, families, or relating to parenting education.

• International Journal of Internet, Broadcasting and Communication
• /
• 제15권2호
• /
• pp.112-117
• /
• 2023

This study aims to find out what tourists' interests and perceptions are like through online big data. Big data for a total of five years from 2018 to 2022 were collected using the Textom program. Sentiment analysis was performed with the collected data. Sentiment analysis expresses the necessity and emotions of city tours in online reviews written by tourists using city tours. The purpose of this study is to extract and analyze keywords representing satisfaction. The sentiment analysis program provided by the big data analysis platform "TEXTOM" was used to study positives and negatives based on sentiment analysis of tourists' online reviews. Sentiment analysis was conducted by collecting reviews related to the city tour. The degree of positive and negative emotions for the city tour was investigated and what emotional words were analyzed for each item. As a result of big data sentiment analysis to examine the emotions and sentiments of tourists about the city tour, 93.8% positive and 6.2% negative, indicating that more than half of the tourists are positively aware. This paper collects tourists' opinions based on the analyzed sentiment analysis, understands the quality characteristics of city tours based on the analysis using the collected data, and sentiment analysis provides important information to the city tour platform for each region.

• 기술혁신학회지
• /
• 제12권1호
• /
• pp.70-87
• /
• 2009

최근 유가급등, 실물경제 위기 및 에너지 환경 위기 시대에 직면하여 공공부문에서의 효율성 증대에 대한 요구는 높아지고 있다. 그간 국가연구개발사업의 효율성은 개별 사업별 절대적 성과치를 근거로 재량적으로 판단되어 온 경우가 많은 점을 인식하고, 본 연구는 사업별 비교를 통해 원자력연구개발사업의 상대적 효율성을 도출함으로써 객관적 결과를 도출함을 목적으로 하였다. 본 연구를 수행하기 위해 교육과학기술부 주요 사업인 기초연구개발사업, 특정연구개발사업 및 원자력연구개발사업의 성과보고서에 제시된 자료를 활용하였고, 문헌검토와 관련이론을 통해 분석방법 및 모형을 설계하였다. 한편 상대적 효율성을 판단하기 위하여 자료포락분석법을 활용하였으며 이의 분석결과를 토대로 원자력연구개발사업의 효율성 증진방안을 세부사업별로 제시하였다. 연구개발사업의 효율성 측정을 위하여 자료포락분석법이 활용된 사례가 없는 만큼, 동 분석법의 한계를 극복할 수 있는 개선된 자료포락분석법이 적용된다면 연구개발사업의 효율적 관리에 기여할 것으로 기대한다.

• International Journal of Advanced Culture Technology
• /
• 제11권4호
• /
• pp.279-285
• /
• 2023

This study provides academic implications by considering trends of domestic research regarding therapy for Mental disorder schizophrenia and psychosocial. For the analysis of this study, text mining with the use of R program and social network analysis method have been used and 65 papers have been collected The result of this study is as follows. First, collected data were visualized through analysis of keywords by using word cloud method. Second, keywords such as intervention, schizophrenia, research, patients, program, effect, society, mind, ability, function were recorded with highest frequency resulted from keyword frequency analysis. Third, LDA (latent Dirichlet allocation) topic modeling result showed that classified into 3 keywords: patient, subjects, intervention of psychosocial, efficacy of interventions. Fourth, the social network analysis results derived connectivity, closeness centrality, betweennes centrality. In conclusion, this study presents significant results as it provided basic rehabilitation data for schizophrenia and psychosocial therapy through new research methods by analyzing with big data method by proposing the results through visualization from seeking research trends of schizophrenia and psychosocial therapy through text mining and social network analysis.

• 디지털융복합연구
• /
• 제15권2호
• /
• pp.89-98
• /
• 2017

본 연구는 인과관계 분석에서 주로 활용되는 SPSS statistics(회귀분석)과 구조방정식모델을 구현하는 프로그램 중 하나인 AMOS 프로그램을 각각 활용하여 동일한 데이터에 대하여 조절효과 검정을 위한 실증분석을 실시하였다. 실증분석 결과, SPSS statistics을 활용한 회귀분석에서 상황변수가 범주형데이터인 성별과 연속형데이터인 컨설팅만족도 모두에서 조절효과가 없는 것으로 나타난 반면, AMOS 프로그램을 활용한 구조방정식모델에서는 10% 유의수준에서 컨설턴트의 능력 및 태도가 컨설팅재구매에 미치는 영향관계를 컨설팅만족도가 부분적으로 조절하고 있는 것으로 나타났다. 결국, 조절효과 분석은 AMOS 프로그램을 활용한 구조방정식모델과 SPSS statistics을 활용한 회귀분석모델이 전혀 다른 접근방법을 사용하고 있어 얼마든지 상이한 결과가 나올 수 있음을 보여준다.

• 가정과삶의질연구
• /
• 제17권2호
• /
• pp.1-18
• /
• 1999

The purpose of this study was to evaluate the utility of the community welfare center. for the purpose this study consisted of three main subjects(1) A analysis about the programs of the community welfare center (2) A analysis about the experience of the user and non-user on the community welfare center (3) A analysis about the demand for family welfare service program For the data set 398 married women living in Jeonju were chosen. The data were analyzed with the spss pc+ program. The major findings were as follows : (1) The program of community welfare center consisted of child adolescent elder family a disabled person community welfare program Among contents of this program family welfare program is limited to level of individual needs (2) The wives experienced of community welfare center did not satisfied about equipment location program of community welfare program The 44.0 portion of wives not experience of community wlfare center have no plan using of community welfare center (3) The wives hoped to establish diversed subjects such as parents-child communication conjugal communication sexuality education for child child care techniques health and nutrition of family member time managememt and lesuire and consumer's rights and damage relief.

• Restorative Dentistry and Endodontics
• /
• 제46권3호
• /
• pp.37.1-37.11
• /
• 2021

Objectives: This systematic review evaluated the efficacy of the supplementary use of the XP-endo Finisher on bacteria content reduction in the root canal system. Materials and Methods: In-vitro studies evaluating the use of the XP-endo Finisher on bacteria content were searched in four databases in July 2020. Two authors independently screened the studies for eligibility. Data were extracted, and risk of bias was assessed. Data were meta-analyzed by using random-effects model to compare the effect of the supplementary use (experimental) or not (control) of the XP-endo Finisher on bacteria counting reduction, and results from different endodontic protocols were combined. Four studies met the inclusion criteria while 1 study was excluded from the meta-analysis due to its high risk of bias and outlier data. The 3 studies that made it to the meta-analysis had an unclear risk of bias for at least one criterion. Results: No heterogeneity was observed among the results of the studies included in the meta-analysis. The study excluded from the meta-analysis assessing the bacteria counting deep in the dentin demonstrated further bacteria reduction upon the use of the XP-endo Finisher. Conclusions: This systematic review found no evidence supporting the supplementary use of the XP-endo Finisher on further bacteria counting the reduction in the root canal.

• 한국IT서비스학회:학술대회논문집
• /
• 한국IT서비스학회 2008년도 추계학술대회
• /
• pp.337-340
• /
• 2008

To take the re-use of software, we need to study the efficient integration method of source programs. When the source programs are merged, it is required the steps of verification for any non-interference on non-identical parts of them. The traditional techniques of the program integration verify non-interference of source programs through the simple comparison of statements of source programs. We propose the efficient integration method using data flow analysis in the programs. A study comparing test results from the traditional method and the proposed method has found that the proposed method is more efficient than the traditional method.