• 설비공학논문집
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• 제19권6호
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• pp.470-475
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• 2007

The present study has been conducted economic analysis through actual operation of electric heat pump (EHP) and gas engine driven heat pump (GHP) which are installed at the same building in the university. Cost items, such as initial cost, annual energy cost and maintenance cost of each system are considered to analyze life cycle cost (LCC) and economical efficiencies are compared. The initial cost is considered on the basis of actual cost, and annual energy cost is converted into the cost after measuring electricity and gas consumption a day LCC applied present value method is used to assess economical profit of both of them. Variables used to LCC analysis are electricity cost escalation rate, natural gas cost escalation rate, interest rate, and service lives when each of them are 4%, 2%, 8%, and 20 years. The result shows that EHP (148,257,306 won) is more profitable than GHP (161,239,296 won) by 8.05% (12,981,990 won).

• 교육시설 논문지
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• 제24권6호
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• pp.3-10
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• 2017

The efforts for sustainable development in building construction is widely applied by global organizations, governments, etc. However, according to the researchers, if the green rating systems on the building, it is reported that construction costs and durations are increased compared to conventional buildings. In this respect, the objective of this study is to identify the construction costs between LEED and non-LEED buildings. The scope of this study is limited in 21 university buildings of Canada. The methodology is as follows: First, the data of LEED and non-LEED buildings are collected in every university building. Second, the average construction costs per square meter is collected and normality check is conducted. Third, to identify statistical significance, the difference of average construction costs is analyzed by using T-test. As a result, it is concluded that the construction costs of LEED buildings are increased by approximately 3.8% more than non-LEED buildings. In the future, the results of this study can be applied to analyzing the additional costs according to the LEED grade in educational buildings.

• 한국정보통신학회논문지
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• 제25권4호
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• pp.549-557
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• 2021

본 연구는 교육용 로봇 중 한 종류인 스마트로봇을 대상으로 기존의 OID 센서 환경을 이용하되 주행의 문제점을 프로그램으로 처리하는 것을 제안 하고자 한다. 주행 정보를 가지고 있는 지도환경, 위치인식, 경로계획, 장애물 회피 및 경로 재설정을 중심으로 주행 테스트 환경을 구축했으며 평균적인 최종 오류 률이 아니라 오류가 증가하는 시점을 재보정의 순간으로 잡아야 한다는 가정을 통해 실험을 진행했다. 그 과정을 통해 선행실험에 비해 안정적인 주행 결과를 얻었다. 본 연구가 현재 판매되는 저가형 센서를 장착한 교육용 로봇들의 주행 성능을 올릴 수 있는 개발방법이 될 것이라 본다.

• 노동경제논집
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• 제44권1호
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• pp.169-204
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• 2021

본 연구는 한국교육고용패널 자료를 이용하여 대학입학전형별로 서로 다른 교육투자행태를 보이는지 확인해보았다. 분석 결과, 수시전형으로 대학에 입학한 학생들의 연평균 사교육비와 일주일 평균 혼자서 공부한 시간이 정시전형으로 대학에 입학한 학생들보다 낮았고, TV 시청, 컴퓨터 이용 등과 같은 여가시간과 수면시간이 더 긴 것으로 나타났다. 이러한 결과는 대학입학 제도가 교육투자의 양태를 바꿀 가능성을 보여주며, 나아가 필요한 인적자본투자를 효율적으로 이루어지도록 유도할 가능성도 있음을 보여준다.

• 교육시설
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• 제1권1호
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• pp.33-40
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• 1994

This study was taken to increase efficiency in reviewing documents of school facilities from the network of ERIV(Educational Resources and Information Center, USA). Outline of the ERIC network, and the structure, role, function of the ERIC thesaurus are introduced. A thesaurus have developed for information retrieval purpose provides the filing labels which permit information to be stored by one person and retrieved by another. As an information system grows, its thesaurus is systematically built and refined to the point where it represents, in a very special sense, the vocabulary of subject field. The Thesaurus of ERIC Descriptors represents such a vocabulary for the field education. An understanding of its origins, its function and its limitations, is just as important to the teacher, the student of education or the educational researcher as it is for the indexer or custodian of the information pool it represents. If the Thesaurus is understood and used in an appropriate way, it can give all educators not only insight into the ERIC system but also an increased awareness of the language of their field. A great many terms are necessary to describe the many aspects of education, and the task of relating them in even an approximately consistent way is an enormous one. The undertaking should be managed by people who not only know what they are talking about but who also should be able to predict what people in their field are lilely to be talking about in the near future. It should also enlist people who are willing to pay term to another within the system. To engage a large number of these two kinds of people over a long period of time is very likely to cost a great deal of money. There is very little proprietary value in producing such a list of terms, for it can very easily be copied, adapted, updated, etc. Thus, because of its high cost and low proprietary value, it becomes a task likely to be funded only by a government. A government has many ways of spending its money. However, after the decision has been made to spend money to produce an authority list, one must decide how this authority is to be delegated. The history of the development of the ERIC Thesaurus is the history of how this authority was delegated. Scientific research has thrived on efforts to define terms as precisely as possible. It is difficult to say with certainty, however, that solutions to social problems have thrived on a simple diet of scientific research. Contemporary crises demand new and imaginative ways of conceiving problems and talking about them. If this Thesaurus or any other scheme for normalizing or controlling language inhibits in the slightest measure the creative use of language, it is against it use. Only if the principles and details of the Thesaurus are misunderstood can it be used as a constraint on language in a negative sense. Students of education of every kind should see the The-saurus as an opportunity to become increasingly self-conscious about their language and thus about their assumptions and their approaches to educational problems.

• 교육녹색환경연구
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• 제16권2호
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• pp.1-9
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• 2017

Defect dispute in apartment building has become a debating social issue. The system of defect lawsuit and the conciliation process are applicable to solve defect problems in South Korea. Among various defects, painting work defect is a critical issue because it requires large area works and entails a lot of cost. Accordingly, disputes on work procedure and cost calculation are argued oftenly between residents and housing providers. This study reviewed detailed main issues of painting work and propose relevant systems and standards. In this analysis, the main issues are categorized into pre-works, main work, and others. The most recent cases are compared and analyzed for each issue. After the analysis, following conclusions are obtained, (1) In defect lawsuit system, even though surface treatment work in pre-work step is part of main work, it has been separated and regarded as a separate work. (2) Although the main painting work are not significantly different from two systems, it is still necessary to achieve a consensus to close the gap in the methodology of painting area calculation and determining whole painting or partial painting. (3) In addition, unlike the profit rate of general construction works, that of painting work remained the maximum rate and additional charge rate for works carried out in higher place are different among cases. Therefore, it is determined that establishing consistent standards is urgent.

• The Journal of Asian Finance, Economics and Business
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• 제7권11호
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• pp.595-606
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• 2020

This paper aims to develop a conceptual framework for evaluating the impact of factors influencing the decision of Vietnamese students to study English in the Philippines. The empirical analysis used data from the survey data of 318 respondents living in Vietnam. Comprehensive, valid, and reliable tools (SPSS 26 software) are used to analyze and verify the gathered data, and the hypotheses developed. The results identified the factors that affect the decision of Vietnamese students to study English in the Philippines include knowledge and awareness, personality recommendation, cost issues, environment, geographic proximity, and social link. Based on the overall findings of this study, several implications are presented for educational practices in academies and schools about English teaching in the Philippines. To increase the ability to get students to study English in the country, it is important that schools or academies must understand the demands of students regarding the academic environment, and in particular, to know what factors determine the decision from the customers' point of view. This study contributes significantly to the understanding of agencies and educational managers about the student's choice behavior in the context of the need to improve foreign languages and, thus, help improve the competitiveness of agencies and English schools.

• 벤처창업연구
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• 제17권3호
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• pp.183-200
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• 2022

본 연구는 치유농업 분야에서 치유체험프로그램이 만족도에 미치는 영향에 관한 연구이다. 농촌 체험프로그램을 개발 하는데 있어서 치유 체험프로그램을 구성하는 어떤 요인이 만족도에 영향을 미치는지와 치유체험프로그램의 마케팅관점에서 어느 정도의 참여시간과 참여비용이 치유체험프로그램의 만족도에 미치는지에 대한 영향을 실증분석하고자 한다. 치유 체험프로그램의 체험비용과 체험시간이 만족도에 미치는 영향에 대하여 연구해 봄으로써, 치유체험프로그램의 개발 방향성을 제시하고자 한다. 이를 위하여 체험비용과 체험시간을 매개변수로 하는 치유체험프로그램이 만족도에 미치는 영향을 실증분석함으로써 농촌 체험프로그램의 개발 시 우선적으로 고려해야 할 부분에 대한 이론적 기반을 제시한다. 체험프로그램의 하위요인으로 오락적 체험, 교육적 체험, 일탈적 체험, 심미적 체험이 있으며, 매개변수로 체험시간, 체험비용이 있으며, 종속변수로 만족도를 두었다. 또 한 설문대상자의 인구통계학적 변수를 통제변수로 설정하여 연구결과의 신뢰성을 확보하였다. 조사대상은 치유체험프로그램에 관심이 있거나 인지하고 있는 불특정 다수를 대상으로 수집한 설문지 중 유효한 314명을 대상으로 실증분석을 시행하였다. SPSS v22.0을 사용하였으며, 매개 효과를 검정하기 위하여 Baron & Kenny(1986)의 3단계 검증법과, Andrew F. Hayes(2018)의 SPSS PROCESS Macro Model No.4 검증 방법을 적용하여 분석결과에 대하여 비교함으로써 매개 효과에 대한 신뢰성을 확보하였다. 연구결과 교육적 체험(𝛽=.134, t=1.759*)이 체험비용에 정(+)의 영향을 미치는 것으로 나타났으며, 심미적 체험(𝛽=.144 t=1.684*)이 체험시간에 정(+)의 영향을 미치는 것으로 나타났다. 또한 교육적 체험(𝛽=.239, t=4.112***)이 만족도에 정(+)의 영향을 미치는 것으로 나타났으며, 심미적 체험(𝛽=.330 t=4.921***)이 만족도에 정(+)의 영향을 미치는 것으로 나타났다. 체험시간은 심미적 체험과 만족도 사이에서 부(-)의 비일관적 매개 효과를 미치는 것으로 나타났다. 즉 심미적 체험이 만족도에 미치는 총 효과는 𝛽=.330 t=4.921***이며, 체험시간을 매개변수로 투입 시 직접효과(𝛽=.349 t=5.241***)는 총효과에 비해 𝛽=.019 만큼 증가한 반면, 간접효과(𝛽=-.019)로 부(-)의 매개 효과를 미치는 것으로 나타났다.

• 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.

• Journal of applied mathematics & informatics
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• 제41권1호
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• pp.215-228
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• 2023

The ready-made garments (RMG) have been making a crucial contribution about of 81% of total export and 12.36 % of total GDP of the country which is now the single biggest export earner for Bangladesh. The cheap production cost is the key important factor to explore this RMG sector. But these RMG sector is running on the basis of intuition based decisions. Though they are making profit it is not optimal. In this study, a deterministic model is developed to help the RMG to minimize the production cost and to maximize their profit along with optimal utilization of available resources. 10 different types of products are taken from one of the garments factories of Gazipur, Dhaka to prepare this research work. This model suggests the manufacturer on which products along with how much should be produced to meet the future demand by maintaining the lowest production cost that ultimately maximize the profit of the organization, and also helps Bangladesh to compete in the international market with 'Made in Bangladesh'. LINDO programming is used here to solve this LP model.