• 공학교육연구
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• 제25권1호
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• pp.3-11
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• 2022

The purpose of this study is to empirically analyze the learning experiences of high school mathematics and science subjects of new students in science and engineering, and to provide basic data and respond to strengthen basic knowledge of science and engineering students in the future. The subjects of the survey were 481 freshmen in science and engineering at S University. First, as a result of analyzing the learning experiences of freshmen, the geometric subjects were significantly lower, which is the result of students' sensitive responses to transitional changes in the curriculum and SAT system after revision. In science, general elective subjects were higher than career elective subjects, and there was a deviation between science subjects, which is a result of reflecting the diversity and hierarchy of science subjects. Next, as a result of analyzing the difference in learning experience after revision compared to before the revision of the curriculum, the learning experience of Mathematics II increased significantly and the geometry decreased significantly. Both Chemistry I and II increased significantly compared to before the revision, and Earth Science I decreased significantly. This can be seen as a result of strategic choices based on obtaining grades in the CSAT and disadvantages in college entrance exams. As a result of the study, students' sensitive reactions to changes in the high school education environment were confirmed, basic mathematics and science-related courses were opened to alleviate variations in the academic ability due to elective courses, and countermeasures tailored to each university's situation.

• 한국보육지원학회지
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• 제10권1호
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• pp.59-79
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• 2014

본 연구는 유아교사들을 대상으로 행복 교육에 대한 개념도 분석을 실시하여 행복 교육에 대한 가능성과 지침을 제안하는 데 목적이 있다. 본 연구의 연구대상은 유치원과 어린이집에 근무 중인 유아교사 각 50명씩 100명을 대상으로 선정하였다. 유아교사가 작성한 개념도는 상위개념의 수, 내용요소에 따른 수, 특성, 위계, 밀도 등의 측면에서 분석하였다. 첫째, 유아교사의 행복 교육에 대한 내용에서 유치원 교사들이 사용한 상위개념의 개수는 총 364회로 나타났으며, 총 21개의 상위개념 범주로 도출하였다. 둘째, 유아교사의 행복 교육에 대한 내용에서 어린이집 교사들이 사용한 상위개념의 개수는 총 296회로 나타났으며, 총 18개의 상위개념 범주로 도출하였다. 본 연구의 결과를 통해 유아교사의 행복 교육의 개념에 대한 지식을 체계화하고 전문화된 지식체계로 발전하기 위한 지원이 필요함을 시사한다.

• 산업경영시스템학회지
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• 제44권3호
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• pp.207-213
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• 2021

Recently, the number and scale of projects being carried out within the enterprise are increasing. Accordingly, many companies are competitively introducing a Project Management Office (PMO) to efficiently manage these projects, allocate resources, and effectively link the projects and corporate strategies. However, the project manager who directly manages the project wants to receive support from the PMO in many areas for successful project management, but the project manager does not like to be interfered with by the PMO. On the other hand, the PMO may not be able to satisfy all the requirements of each PM as PMO oversees the entire project with limited resources. In addition, since the PMO must monitor and control the project and support the project according to the priorities of each project, conflicts with each PM can be formed. Therefore, in this study, based on the case of a company, the difference between the perceptions of PMs and PMOs about the importance of the required roles of PMOs is to be examined. As a result of the study, it was confirmed that the core functions and sub-functions of PMO, which PMO members and PMs consider important, are different. It was identified that the PMs valued the PMO function that would be helpful for their successful project execution. On the other hand, PMO members revealed that they had a relatively high priority for the roles to monitor and control project performance for which they were directly responsible.

• Journal of Microbiology and Biotechnology
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• 제28권7호
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• pp.1052-1060
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• 2018

Numerous studies suggest that the effects of lactic acid bacteria (LAB) on oxidative stress in vivo are correlated with their antioxidative activities in vitro; however, the relationship is still unclear and contradictory. The antioxidative activities of 27 Lactobacillus plantarum strains isolated from fermented foods were determined in terms of 2,2-diphenyl-1-picrylhydrazyl, hydroxyl radical, and superoxide radical scavenging abilities, reducing activity, resistance to hydrogen peroxide, and ferrous chelating ability in vitro. Two fuzzy synthetic evaluation models, one with an analytic hierarchy process and one using entropy weight, were then used to evaluate the overall antioxidative abilities of these L. plantarum strains. Although there was some difference between the two models, the highest scoring strain (CCFM10), the middle scoring strain (CCFM242), and the lowest scoring strain (RS15-3) were obtained with both models. Examination of the antioxidative abilities of these three strains in $\text\tiny{D}$-galactose-induced oxidative stress mice demonstrated that their overall antioxidative abilities in vitro could reveal the abilities to alleviate oxidative stress in vivo. The current study suggests that assessment of overall antioxidative abilities with fuzzy synthetic models can guide the evaluation of probiotic antioxidants. It might be a more quick and effective method to evaluate the overall antioxidative abilities of LAB.

• 한국병원경영학회지
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• 제22권1호
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• pp.40-50
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• 2017

The purpose of this study is to develop the KPIs(Key Performance Indices) needed to improve management and strategy in the dental clinic based on the four perspectives of BSC(Balanced Scorecard). The questionnaire was conducted on 52 dentists approved by Dental Managment Research Committee in Seoul National University as a panel. Using the Delphi technique, the top five KPIs for each point of perspective in BSC were extracted from KPI pools. In the third survey, the top five KPIs of all points were compared with each other through AHP(Analytic Hierarchy Process) method, and priority and overall importance rankings were calculated. The biggest difference in the three level AHP results was the customer perspective took priority to others. In the second survey, the financial perspective, which was number one, was pushed back. The overall significance of KPIs was in the order of customer, internal process, finance, learning and growth perspective, with the exception of medical profits (5th of 20) and new patient growth (10th of 20). We were able to overcome the limitations of the Delphi Technique with the AHP method. In general, the financial perspective in BSC is known to be the most important, but we conclude that the customer perspective is more important through the pairwise comparison survey. In the current dental service market, which is a long-term recession, excessive competition, customer satisfaction and customer relationship management seem to be the first goal to pursue in dental clinic.

• KIEAE Journal
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• 제9권3호
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• pp.21-27
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• 2009

The goal of this paper is to determine the suitability evaluation indices of a riverside reservoir space planning by classifying major indicators and calculating AHP(Analytical Hierarchy Process) based weights of them. The major indicators were set up based on literature review and questionnaire survey to experts. Four indicator categories were developed: location, environment, resource availability and economical efficiency. And they were divided into 12 sub-categories for calculating AHP-based weights. First, as for the major indicator categories, the calculation shows that the weighted index of environment is the most important at 0.458, followed by location at 0.128, economical efficiency at 0.170 and resource availability at 0.154. This suggests that environment is getting more public attention and the reservoir is regarded as a facility that is connected to a river. Those weight values were considered in calculating final weights for each of 12 sub-categories. Among them water quality and ecological environment take top ranks at 0.190 and 0.186, respectively. The lower ranks include access 0.112, resource availability of site 0.082, tourism resource 0.078, users 0.076, available land 0.052, area of site 0.031, shape of site and deterioration level 0.030 and percentage of private land 0.030 - which represents general considerations in other space planning. The difference of the top rank (water quality, 0.190) and the last one (percentage of private land, 0.027) is 0.163. The above result shows that users regard environmental aspect and resource availability more important than easiness of construction.

• 한국도로학회논문집
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• 제14권6호
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• pp.75-84
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• 2012

PURPOSES : This paper aims to improve the evaluation method of the Level of Service(LOS) for urban streets presented by the current Korean Highway Capacity Manual(KHCM) and suggest its utilization plan as a part of the methods to evaluate the sustainability of a transportation policy. METHODS : This paper carried out a research in 3 steps to develop a new evaluation method. First of all, this paper reviewed the previous studies related to the LOS of urban streets and the socially requested items for a sustainable transportation system. Then this paper derived an index and weight through expert questions to select an evaluation index. Lastly, this paper compared the results according to the existing evaluation methods with the new evaluation methods through case studies. This paper used an Analytic Hierarchy Process(AHP) for importance analysis and weight selection between new evaluation items and indices, and applied a Grey System Theory(GST) for a synthetic and integrated evaluation between the selected evaluation indices. RESULTS : As a result of evaluating the LOS according to the existing evaluation methods and the integrated evaluation methods using a GST through case studies, it was analyzed that new methods' results are less than or equal to the existing evaluation methods; and as a result of applying a weight between evaluation indices according to AHP, it was noticed that the total score seems to rise more when the LOS in the existing evaluation is calculated lower. It was analyzed that the LOS calculated by reflecting the newly established evaluation items and the importance between indices in this study has difference from the LOS of the existing urban streets. CONCLUSIONS : It is expected that this evaluation method can diagnose the current conditions when establishing a future sustainable traffic system and can be used for the measurement of the sustainability effects of the improvement plans and so on.

• 지역연구
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• 제37권4호
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• pp.3-19
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• 2021

최근 높아진 개·폐점률로 인해 자영업자들의 생존율은 낮아지고 조기폐업은 증가하고 있으며, 이는 개인의 부채 증가, 고용불안정과 같은 사회적 문제뿐만 아니라 도시공간 공동화라는 도시문제까지 야기하고 있다. 이와 관련해, 상업공간 내 사업체의 변화양상과 높은 창·폐업률에 미치는 영향요인을 밝히는 연구가 진행되고 있으나 연구의 범위가 한정적이어서 서울시 전체지역 내 사업체의 변화에 대한 객관적인 진단이 부족한 상태이다. 이에 본 연구는 서울시 내 주요상권을 대상으로 폐업 및 생존한 사업체의 영업기간 변화를 활용해 각 상권의 특성을 논의한다. 분석 결과, 서울시의 상업공간 변화특성은 크게 두 가지로 구분할 수 있었다. 도심상권(중구 및 종로구)과 영등포 상권은 사업체들이 안정적으로 영업하는 양상을 보이며, 국지적으로 활발한 사업체 변화를 보였다. 또한, 강남상권과 마포상권은 전체적으로 생존한 사업체들과 폐업한 사업체들 모두 짧은 영업기간을 보였다. 이런 상권별 변화특성의 차이는 영업체의 생존과 폐업활동이 상업공간의 장소적 특성과 밀접하게 연관되어 있음을 의미하며, 공간별 사업체 변화에 따른 적절한 해결책 제시가 필요함을 시사한다.

• 한국주거학회논문집
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• 제13권5호
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• pp.31-42
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• 2002

This comparative study between Korean and German housings aims at understanding different structural systems in the indoor and outdoor spaces, depending upon the user′s perception of the socio-cultural attributes. The analysis starts with four alternative contrary assumptions, that appear in morphological forms of dwelling; 1) linear distribution vs. areal distribution of residential districts, 2) mirror system vs. comb system in the layout of plot plans 3) organization of front vs. back outdoor spaces and 4) opening vs. closing in the indoor spaces. A clear difference is found between Korean and German samples in view of public and private relationships between indoor and outdoor spaces as well as the intermediate space. In the korean housing there always exists a symbolic and psychological territory of a certain sphere. On the other hand, outdoor space passes through various phases only to form a certain hierarchy even in a private space and, thereby, sets a boundary between private and public areas. In the case of Germany, the building itself draws a clear line between private and public outdoor spaces, and therefore the outdoor space has a "front" and "back". Thus, Germany′s private space may face a genuine public space and street, which is rare in the Korean housing. Although the layout of indoor space in the korean housing tends to be open, such an openness may be outstanding in living and dining spaces, kitchen and various accesses to rooms. In the case of Germany, such indoor spaces are usually closed to each other. Thus corridors act to separate these spaces. Such differences are analysed to be due to the different perceptions of interpersonal and socio-cultural attributes as intra-family and inter-neighbor relationships or communications.

• 한국컴퓨터정보학회논문지
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• 제28권1호
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• pp.161-170
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• 2023

본 연구는 음원 스트리밍 서비스 및 e-service 관련 기존 연구를 바탕으로 음원 스트리밍 플랫폼에 대한 선택요인들을 도출하고, 각 요인들 간의 중요도를 파악하기 위해 AHP기법을 실시하였다. 본 연구의 결과, 음원 스트리밍 플랫폼의 1단계 선택요인들인 안전성, 경제성, 정보성, 편리성, 응답성 중에서 경제성이 가장 중요한 요인으로 나타났다. 1단계 요인과 2단계 요인의 가중치를 종합화한 결과에서는 합리적인 가격이 가장 중요한 요인으로 나타났다. 마지막으로 성별과 연령에 따라 음원 스트리밍 플랫폼의 선택요인간 중요도 차이의 유무를 판단하고자 추가적인 분석을 실시하였다. 본 연구를 통해서 소비자들이 음원 스트리밍 플랫폼를 이용할 때 가장 중요하게 고려하는 요인이 무엇인가를 파악할 수 있을 것이다.