• Journal of the Korean Chemical Society
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• v.59 no.1
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• pp.78-87
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• 2015

The purpose of this study was to investigate the argumentation of middle school students during the argument-based inquiry. A total of sixty eight 8th grade middle school students participated in this study and they performed six argument-based inquiry programs. Data were collected from two of the latest programs by audio-recording and transcription of each group engaging in argumentation. The study findings showed that; first, the most frequent element of argumentation in the all of stages of the two programs was following order: 'claim' and 'request and response' and 'simple agreement'. The most active argumentation was showed at the designing experiments stage and the most inactive was showed at the generating questions stage. Second, as a result of analyzing the argumentation level for each stage of the argument-based inquiry, a high level of argumentation was shown at the claim and evidence stage, and a low level of argumentation was shown at the generating questions stage in the argumentation structure. As a result of the validity of argumentation, the validity of argumentation was the highest level in the claim and evidence stage.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2006.11a
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• pp.462-466
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• 2006

The startingpoint of successful buildingproduction process is the feasibility study of the project. If the feasibility study is poor which is affected in direct production processes such as designing and engineering, it incurs a great unrecoverable loss to the company. The governmentinstitutionalized the feasibility study for projects that budgets over 50billion won in an effort to ensure competitiveness of the construction industry after IMF; however, the system and effort to created systematic studies or guidance preparation for private construction development projects are lacking in great deal. Therefore, the objective of this study is to establish the analysis factors of feasibility study and evaluation standard by systematic analysis in consideration of the changes of various variables and mutual relationships using system dynamics technique for office buildings among commercial buildings.

• The Journal of the Convergence on Culture Technology
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• v.9 no.3
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• pp.205-211
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• 2023

In this study, we analyzed the potential application and validity of ChatGPT, an artificial intelligence technology currently gaining attention across various fields, for the creation of advertising photographs. To do this, we examined the relationship between the visual elements of advertising photographs and language, and investigated use cases of ChatGPT in advertising. Furthermore, we analyzed the elements of each stage in the advertising photograph creation process and conducted expert interviews to determine the validity of ChatGPT's application in these stages. The results revealed that, although somewhat limited, the feasibility of using ChatGPT was found to be high in the planning stage of advertising photographs, but lower in the actual shooting and post-production stages. Considering these findings, it is necessary to continuously monitor the progress of AI technology and strive to enhance the creativity and efficiency of advertising photograph production through collaboration between technology and humans.

• 한국체육학회지인문사회과학편
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• v.57 no.3
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• pp.375-389
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• 2018

This study aims to development and validation a tool to measure physical education teaching anxiety(PETA) among preservice special teacher. In order to achieve this study purpose, first, the preliminary items for measurement scale were collected through open-ended questions and were developed by inductive content analysis from the 100 preservice special teacher. Second, investigation for construct validity was conducted on exploratory factor analysis from the 100 preservice special teacher. Third, in the final process, verify exernal validity was conducted by confirmatory factor analysis and t-test from the 300 presevice special teacher. As a result, the measurement scale of physical education teaching anxiety(PETA) among preservice special teacher consists of 4 main factors with 14 items: pedagogical content knowledge(n=4), understanding students(n=4), class environment(n=3), class management(n=3) factors and this scale has enough suitability.

• Korean Journal of Construction Engineering and Management
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• v.9 no.2
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• pp.67-80
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• 2008

Recently, automated construction machines have been developed for technically solving construction industry problems such as labor, productivity, qualify and the profit decrease. In spite of the importance of performance analysis in order to commercialize the automated construction machines, previous studies are mainly forced on developing hardware and software of automated construction machines. The primary objective of this research is to propose the performance analysis model of automated construction machines, which can measure productivity, quality and safety improvement rate based on the research and development phases, and to develop a performance analysis system, which enables performance evaluator to easily analyze the performance of the automated construction machines. Finally, it is anticipated that the effective use of the performance analysis model and computerized system would be able to develop the automated construction machines having high performance, and to establish the marketing strategy effectively in order to increase the possibility of commercialization of the developed construction machines.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2008.11a
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• pp.891-896
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• 2008

Recently our country need to change about hospital building operation and business change. The recent real estate development projects are made in very complex due to the diversity of development method or its legal aspects. Under such a real estate investment, the review of investment yield rate is fundamentally important for the one that invests and the one that finances it. Previously, the focus was in the review of the time to turn the surplus or the plan for making repayment of the borrowings, and without the analysis of sufficient investment yield rate. For a simple issue of finding the most advantageous project method, there is a need for reviewing the taxation issues, fund procurement method, legal aspects, policy analysis aspects and others. Therefore, the real estate investment is now likely to encounter the form of having the time of venture as well. In conclusion, the scientific and reasonable decision making in investing on the real estate does not suggest the absolute evaluation standard but the need and the use are more and more demanded.

• 대한공업교육학회지
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• v.36 no.2
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• pp.151-180
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• 2011

The purpose of the study was to develop a practical arts textbook for creative problem solving abilities in elementary school. In this study the practical arts textbook and teacher's guide has the following characteristics: they were developed to promote creative problem-solving ability, and to instill curiosity and interest about the subject matter. The procedure for the development of the practical arts textbook for creative problem solving abilities is composed of 4 steps; the planning and preparation stage, the research and developmental stage, the writing and compilation stage and the deliberation and improvement stage. This procedure for the development of a textbook can apply to both government published textbooks and to authorized textbooks. The validity of the writing and compilation stage's practical arts textbook developed model is the highest at 4.21, followed by the research and developmental stage's average, at 4.14. Among the textbook's stages of development, the importance of the deliberation and improvement stage averages the lowest, at 3.50.

• Korean Journal of Construction Engineering and Management
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• v.24 no.1
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• pp.3-11
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• 2023

According to the post evaluation scheme in Korea of a public construction project which is more than 30 Billion KRW, project performance is evaluated by investigating outcomes and effects of the construction after the completion of the project. The current post evaluation results can be used for planning and estimating a construction project in the future. However, it is not easy to utilized for an on-going project because the system does not provide the phase-based performance of a project. Although project planning performance is important for project initiation, few attempt has been made to evaluate planning performance in Korea. The purpose of this study is to provide a conceptual performance evaluation of planning performance using preliminary feasibility study conducted by Korea Development Institute. This study developed a planning performance database using data extracted from preliminary feasibility study reports of the completed 354 road construction projects. This study analyzed the performance of the planning stage of road projects by developing absolute metrics such as standard construction cost and standard construction schedule based on a Lane-Km. Using the standard construction cost and schedule metrics, the planning performance was analyzed by project characteristics. The results of this study can be used for phase-based performance evaluation from planning phase to construction phase.

• Korean Journal of Construction Engineering and Management
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• v.7 no.6
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• pp.165-174
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• 2006

Recently, the architecture remodeling is rising as new alternative for activating the construction market as the interest toward life cycle of buildings has increased. But the reality is that current remodeling business is suffering various types of difficulties in its performance due to the absence of general management technology and factor technology in systematic performance procedure or evaluation, etc toward remodeling effect, evaluation on performance, imperfect system for reflecting user requirements and remodeling life cycle ; planning, $feasibility ^{\circ}\hat{E}designing^{\circ}\hat{E}construction^{\circ}\hat{E}management$ along with lack of overall understanding on remodeling. Accordingly, this research has attempted to search for an effective management method through overall understanding in project performance by presenting work procedure of remodeling project and analysis items for decision making, etc centered on early planning stage out of three stages called planning, designing and construction.

• 한국IT서비스학회:학술대회논문집
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• 2009.05a
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• pp.3-7
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• 2009

최근 우리 사회는 유비쿼터스 컴퓨팅 기술의 발전과 지자체별 u-City 건설 붐에 힘입어 도시민의 삶의 질 개선과, 도시관리 기능의 효율화를 위한 차세대 서비스 사업이 활발히 전개되고 있다. 반면 유비쿼터스 사회에서의 기술 수명주기의 단축과 시장의 급변은 사업 전개에 있어 커다란 부담으로 작용하고 있어 사업 계획 단계에서부터 사업의 타당성에 대한 충분한 고려가 필요하다. 본 논문은 과거의 전통적인 Business로부터 u-Business로의 진화과정을 살펴보고 기술의 발전과 가치의 변화에 따른 u-Business의 성공요인과 u-City 사업의 특징 분석을 바탕으로 u-City 사업 계획 단계에서 적용 가능한 u-City Business Model의 사업타당성 평가지표를 도출하고자 한다.