• 한국건축시공학회지
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• 제6권3호
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• pp.67-73
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• 2006

This study aims to evaluate the feasibility of remodeling business by predicting the future price of apartment house after remodeling using Hedonic Price Model. The data concerning such 9 independent variables as location, unit size, unit plan, landscape, parking, the number of elapsed years after completion, number of units, mechanical performance, interior from 25 regions in Seoul metropolitan city were collected and evaluated by established evaluation criteria. The coefficients affecting the price of apartment unit were made by Ivay of linear multi-regression and put into Hedonic Price Model. The feasibility evaluation model for apartment was made and verified by data of remodelled apartment. The predicted results using suggested evaluation model coincide with actual apartment market situations.

• 스마트미디어저널
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• 제11권7호
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• pp.70-75
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• 2022

2019년 정부는 경제성이 예비타당성조사 통과의 결정적 요소로 작용하는 문제 개선을 위해 종합평가의 경제성 항목 가중치 최대치를 50%에서 45%로 축소하도록 제도를 개선하였다. 이 연구는 2019년 제도개선에 따른 효과를 분석하기 위한 것으로 제도 개선 전과 후의 차이를 검증하였다. 회귀분석과 상관관계 분석결과 두 기간 모두 높은 상관성을 보였으며, Z검증을 통한 차이는 통계적으로 유의미하지 않은 것으로 분석되었다. 이 결과는 경제성의 영향력을 축소하기 위한 제도 개선이 효과가 없었다는 것을 의미한다. 따라서 종합평가 각 항목의 가중치를 기존 사업 등에 다양하게 대입해 재평가 해보는 등의 연구를 통해 보다 실효성 있는 종합평가 연구 설계 논의가 필요할 것으로 판단된다.

• 국제학술발표논문집
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• The 2th International Conference on Construction Engineering and Project Management
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• pp.820-829
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• 2007

This paper presents an evaluation of feasibility studies conducted to justify investments in infrastructure projects. An analysis of a previous feasibility study for a highway construction project is presented in this paper with an emphasis on the estimates and forecasts presented in that study in order to weigh expected benefits from the project against expected costs. The forecasted numbers are compared with actual data collected during the operation phase about the usage of the facility. The comparison reveals a huge difference between estimated numbers and actual numbers. Based on the lessons learned from the analyzed case study, recommendations are presented to improve feasibility studies for infrastructure projects including: peer review of feasibility studies; before-and-after feasibility studies; and defined scope and methodology for feasibility studies. Decision makers are advised to take outcomes of feasibility studies for infrastructure projects with extreme caution as some studies may provide erroneous and misleading input to their decisions regarding investment in infrastructure projects.

• 한국건설관리학회논문집
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• 제9권5호
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• pp.204-213
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• 2008

$1970{\sim}80$년대에 대량으로 공급된 기존 아파트는 오늘날 노후화라는 문제점을 가지고 있다. 노후화의 대처수단으로 크게 Build&Scrap과 리모델링을 생각할 수 있다. 그러나 리모델링의 경우 사회적, 경제적, 환경적 이점으로 인하여 Build&Scrap 보다 낫다고 할 수 있다. 본 연구는 리모델링 용이성 평가체계에 관한 연구이다. 다시 말해 용이성평가는 목적 공사의 용이한 정도를 의미하며, 공사목적에 대한 난이도를 의미한다. 리모델링은 기존 아파트를 기반으로 재설계하고 요소기술을 도입하여 건축물의 기능 및 성능을 높이는 수법 및 공법으로 이루어 졌다. 어떤 관점에서 보면, 리모델링 기술의 발전과 보급은 리모델링 계획과 이미 적용되고 있는 기존의 빌딩의 논리적 접근처럼 관리가 필요하다. 리모델링의 용이성은 두 가지 측면에서 평가된다. 첫째 아파트 단지의 리모델링 용이성을 평가하는 Macro Level과 두 번째는 주동단위의 철거 및 이동의 리모델링 용이성을 평가하는 Micro Level이다. 본 논문의 목적은 리모델링 계획과 목적, 객관성, 그리고 용이한 정도의 허용 범위를 조정하는데 있다.

• 조명전기설비학회논문지
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• 제26권2호
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• pp.18-26
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• 2012

Though electricity consumption amount in industry has been increased gradually, corresponding power supply show symptoms of marginal point. Importance of demand-side management from large-industries has also been raised. This paper deals with induction motor, which is one of representative examples of heavy electricity consumption utilities, to analyze potential technical capability, economic feasibility from consumers' viewpoint and demand-side management feasibility from nation-wide perspective. Nation-wide economic feasibility analysis was done through California test, which has been used as demand-side management evaluation model. This paper also describes limitation of existing high efficiency induction motor in terms of contribution to demand-side management and utilizes premium motor to calculate demand-side management contribution level and economic feasibility evaluation. Likewise, this paper emphasizes the efficiency improvement of induction motor and analyzes how much premium motor related technologies can contribute to demand-side management.

• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 2000년도 봄 학술발표회논문집
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• pp.168-173
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• 2000

Design of experiments is utilized for exploring the design space and for building response surface models in order to facilitate the effective solution of multi-objective optimization problems. Response surface models provide an efficient means to rapidly model the trade-off among many conflicting goals. In robust design, it is important not only to achieve robust design objectives but also to maintain the robustness of design feasibility under the effects of variations, called uncertainties. However, the evaluation of feasibility robustness often needs a computationally intensive process. To reduce the computational burden associated with the probabilistic feasibility evaluation, the first-order Taylor series expansions are used to derive individual mean and variance of constraints. For robust design applications, these constraint response surface models are used efficiently and effectively to calculate variances of constraints due to uncertainties. Robust optimization of automotive seat is used to illustrate the approach.

• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 2006년도 정기 학술대회 논문집
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• pp.549-556
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• 2006

Life cycle cost is one of important factors in the evaluation of economy feasibility. Load carrying capacity curves for girders and decks are derived on the basis of bridge diagnostic results and condition grade curves to determine the service life and life cycle profile. The total life cycle costs including initial cost, damage cost, maintenance cost, user cost, and etc for the service life are calculated for steel box girder, PSC-I girder and rationalized plate girder. The optimal designs are performed for various service lifes and different superstructure types. The effects of parameters on the life cycle cost are investigated and the economy feasibility is evaluated through the sensitivity analysis.

• 대한설비공학회:학술대회논문집
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• 대한설비공학회 2008년도 동계학술발표대회 논문집
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• pp.334-339
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• 2008

Nowadays national research and development fund is continuously increased. And the evaluation on the feasibility of R&D budget investment was carried out. Through this study it was possible that a business feasibility evaluation of large scale research project. Also the benefit of research project about large scale plant(A plant) is $2.67{\sim}3.76$ times of research funds, and the R&D fund pay-back period is $6{\sim}8$ years. And also there is employment effect as $1,200{\sim}2,200$ every year, and $22,000{\sim}35,000$ within 20 years after research project.

• 대한지역사회영양학회지
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• 제27권4호
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• pp.296-308
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• 2022

Objectives: This study aimed to develop evaluation criteria for the elementary-school-based health promotion program using the RE-AIM framework and to examine their feasibility. Methods: Previous evaluation studies on health interventions for elementary-school students using the RE-AIM framework were reviewed systematically to identify appropriate evaluation criteria. A diet and physical activity intervention based on the transtheoretical model was implemented in a pilot study using the "Happy Me" application. The feasibility of using the RE-AIM framework to evaluate it was examined. Results: The review yielded the following evaluation criteria: "reach," the ratio of participants out of the total target population; "efficacy/effectiveness," the difference in outcomes between the intervention and control groups, or between a pre- and post-test; "adoption," the rate of use of the program and participation in the next stage of the program; "implementation," the progress on the program components; "maintenance," the participants' and teachers' intention to continue using the program. The pilot study reached 76.6% of the targeted population. The intake of sugar-sweetened beverages decreased (P < 0.0001), and the duration of walking increased (P < 0.0001). Other indicators could not be evaluated; therefore, potential indicators were suggested. Conclusions: This study produced feasible evaluation criteria for elementary-school-based health promotion using the RE-AIM framework. Nevertheless, the feasibility needs to be validated with a broader range of studies and long-term interventions.

• KIEAE Journal
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• 제8권1호
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• pp.31-36
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• 2008

For the comfortable housing life, comfortable and pleasant urban environment should be created for the people living in house and in city. There are lots of environmental conditions in city affecting house and life. Also most of all the noise pollution have been become major factor that makes people's life uncomfortable. Recently soundscape researches have been performed to create comfortable urban environment and various studies on the evaluation of urban environmental sounds are now undergoing. This study aimed to analyse the subjective characteristics through the subjective evaluation to the sounds measured with physical parameters and eventually to find out alternative evaluation method for urban environmental sounds. Adjectives applied to previous studies were used for the subjective evaluation and sound sources recorded in specific places were presented with picture at the same time. As a result, new physical parameters such as Lmax, Unbiased Annoyance, G, N and EmT have a feasibility to evaluation of urban environment sounds in terms of acoustic comfort.