• 한국간호교육학회지
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• 제20권4호
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• pp.639-649
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• 2014

Purpose: This study evaluates the feasibility of Korean Advance Directives (K-AD) developed earlier. Method: From January 1 to February 28, 2013, data were collected from 330 adults through a self-reported questionnaire established by the authors based on literature review and expert consultation. The feasibility of K-AD was multi-dimensionally evaluated through four criteria: cognitive, psychological, document making and socially expecting aspects. Data were analyzed using t tests, one-way ANOVA, and Scheffe post hoc tests via the SAS 9.1.3 program. Results: The feasibility of K-AD differed significantly by gender (p=.003), educational level (p<.001), religion (p=.002), and self-reported health status (p=.039). Differences in the level of easiness with K-AD by gender (p=.008) and education (p=.047) were significant. Perceived simplicity of AD differed significantly by religion (p=.005), and the necessity of AD differed significantly by gender (p=.025) and religion (p=.005). Conclusion: K-AD are sufficiently feasible to be tentatively utilized in practice. This is the first study to explore the feasibility of K-AD on the basis of multiple aspects. However, further studies involving diverse populations and methodologies to validate the usefulness of K-AD are warranted.

• 기술혁신학회지
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• 제11권2호
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• pp.287-313
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• 2008

도로, 항만 등 사회간접자본 투자의 사업성 분석을 중심으로 이루어지던 예비타당성 제도가 연구개발 분야의 성과관리 강화 및 효율성 제고를 위해 500억원 이상의 대형 연구개발 시설 및 장비 사업을 신규 분석 대상으로 포함하게 되었다. 이에 따라 연구개발 분야에 적용되고 있는 예비타당성 방법론을 분석하고 실제 연구사례에 대한 분석 및 평가를 실시, R&D 분야 예비타당성의 제도적 한계점을 도출하고 이러한 한계점을 보완할 수 있는 개선방향을 제안하였다. 경제성 분석에서의 편익을 추정하는 방법을 R&D 분야에 적합하도록 개선하는 방법과 비용 추정에 있어서의 일관성 있는 근거를 마련하는 방법을 개선방향으로 제안하였으며, 정책성 분석과 AHP 제도에서는 기술성 평가제도의 도입, 지역균형 발전 평가제도의 개선, 재원 조달 가능성 검토 방식의 개선, 기술 전문가의 AHP 참여 의무화 등의 개선방향을 제안하였다.

• 신재생에너지
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• 제8권4호
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• pp.21-29
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• 2012

The extensible supply of New & Renewable energy resources desperately needs to counter the high dependence on imported energy, recent high oil prices and the Climate Change Conference, and the government has operated the 'Renewable Portfolio Standard' (RPS) as one of the renewable energy policy from 2012. By analyzing the operation case of combined heat and power plant using the woodchip biomass, we drew the price of wood chip fuel, plant capacity factor, electricity selling price, heat selling price and LCOE value. After analyzing the economic feasibility of 3MWe combined heat and power plant based on the operating performance, the minimum of economic feasibility has appeared to be secured according to the internal rate of return (IRR) is 6.34% and the net present value (NPV) is 3.6 billion won as of 20 years life time after installation, and after analyzing the cases of the economic feasibility of the price of wood chip, plant capacity factor, electricity and heat selling price are changed, the economic feasibility is valuable when the price of wood chip is over 64,000 won/ton, NPV is minus, and the capacity factor is above 46.9%, the electricity selling price is 116 won/kWh and the heat selling price is above 75,600 won/Gcal. When going over the new installation hereafter, we need the detailed review of the woodchip storage and woodchip feeding system rather than the steam-turbine and boiler which have been inspected many times, the reason why is it's hard to secure the suitable quality (constant size) of woodchip by the lack of understanding about it as a fuel because of the domestic poor condition and the calorific value of woodchip is seriously volatile compared with other fuels.

• 한국건설관리학회논문집
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• 제12권2호
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• pp.89-100
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• 2011

사회간접자본(SOC)은 국가 산업부문과 국민경제에 매우 큰 영향을 끼치는 생산요소로 이에 대한 투자는 경제성장에 있어 필수적이며, 국가 경쟁력을 결정하는 주요 요소이다. 이러한 중요성을 인식하여 정부에서는 지난 1999년부터 예비타당성조사 제도를 도입하여 SOC 사업시행 유 무를 검토하고 있으나 과학적 투자평가방법의 미비, 조사 결과의 신뢰성 저하 등 근본적인 문제가 끊임없이 제기되고 있다. 이를 개선하고자 수행된 주요기관의 선행연구는 대부분 수요추정 및 경제성 분석 중심으로 진행되었고, 예비타당성조사의 주요 단계인 정책적 분석에 대한 연구진행은 아직 미흡한 실정이다. 이에 본 논문에서는 관련 학문과의 적절한 융합과 조화가 요구되는 (예비)타당성조사의 정책적 분석단계에 대하여 현행 전문가의 경험과 관련 자료에 의한 정성적 평가를 개선하고자 가치공학(VE)의 성능평가기법을 활용한 정량적 의사결정모델을 개발 제안하여 분석결과의 정량화를 유도하고 체계적 분석절차에 의한 전략적 판단도구로의 활용과 신규투자사업 목표에 대한 정책적 측면의 가치향상에 기여하고자 한다.

• 농촌계획
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• 제3권2호
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• pp.102-111
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• 1997

For rational agricultural land use planning, it is quite necessary to get hold of land suitability precisely and to make decision on land use patterns accordingly. In the methodological viewpoint, objective and scientific evaluation techniques for land suitability classification should be supported for the systematic land use planning. As one of technical development approaches to rational land use planning, this study tried to frame a land suitability evaluation system for agricultural purposes. Evaluation unit is defined as a tract of land bounded by road, other land units and topographical features. And quantification theory was applied in the determination works of evaluation criteria. The administrative area of Namsa-myon(district), Yongin-si(city), Kyunggi-do(province) was selected for the case study. In order to check the feasibility of the evaluation system developed in the study, field check team, consisting of 2 government officers and 2 representative farmers, carried out evaluation works by observation on 148 sample land units, 10% of total 1,480 ones. Between estimated and observed results, there showed very good relationship of its multiple correlation coefficient, R=0.9467.

• Journal of Power Electronics
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• 제3권2호
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• pp.69-80
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• 2003

Computer aided engineering (CAE) is a systematic approach to develop a better product/application with maximum possible options and minimum transition time. This paper presents a comprehensive feasibility analysis of various CAE techniques for evaluation and optimization of power electronic converters and systems. Different CAE methods for analysis, design, and performance improvement are classified. In addition, their advantages compared to the conventional workbench experimental methods are explained in detail and through examples.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 1995년도 가을 학술발표회 논문집
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• pp.164-168
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• 1995

As nation's infrastructure is getting old, nondestructive evaluation of existing structures and construction quality control are getting important. In this paper non-destructive evaluations of concrete members using impact echo and SASW methods are introduced. Both techniques are based on the stress wave propagations. Experimental tests were performed using beam type concrete member where voids and cracks are included. Within reasonable accuracy, void locations were detected using impact echo method and the dynamic modulus of concrete were measured using SASW method. Both NDT methods showed a feasibility for the implementation into quality evaluaton of concrete members in practice

• 한국철도학회:학술대회논문집
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• 한국철도학회 2001년도 추계학술대회 논문집
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• pp.23-28
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• 2001

What benefit items from railroad investment are evaluated, and how those items are quantified have profound impacts on the feasibility of the proposed investments. They also have implications on the projects priorities, not to mention on intermodal comparison between highway and railroad. Evaluation procedures currently being utilized in Korea show limits in fully evaluating railroads' investment impacts. Economic and practical implications are evaluated for including revenues for railroad investment. Based on the critical evaluation of procedures in other countries, and based on the analysis of Korea's national transportation goals, new and improved benefit items are redefined and quantification guidelines are proposed.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2007년도 정기학술발표대회 논문집
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• pp.249-254
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• 2007

최근 주택시장의 사업주체들은 다양하고 복잡한 시장 환경의 주택시장에서 성공적인 사업을 위하여 사업 기획단계 부터 체계적이고 객관적인 사업성분석을 필요로 하고 있다. 따라서 이러한 주택시장의 환경을 이해하고 사업성 분석에 필요한 모델을 제시하는 것은 의미 있는 것이다. 이에 본 연구에서는 주택시장에 현실적이고 실용적인 사업성분석인자와 중요도를 도출하고 사업성분석인자 모델을 제시하여 사례현장에 적용, 타당성을 검증하였다. 주택개발사업 전문가그룹인터뷰와 설문조사를 통해 중요도를 검증하고 분석한 결과 첫째, 본 연구에서 도출된 중요 사업성 분석인자는 개발사업의 기획단계에서 분석지수에 의해 평가대상 프로젝트의 사업성을 판단할 수 있는 근거를 제시하였다. 둘째, 사업추진등급 이하의 결과일 경우 기준 점수 이하인 분석인자를 도출하고 개선 가능한 분석인자에 대하여 피드백 과정을 통해 사업추진에 대한 재검토가 가능하였다. 따라서 본 연구의 사업성 분석모델은 실제 주택개발 사업에 대하여 사례현장 분석을 수행한 결과, 분석지수를 통하여 개발업무 실무자에게 현실성 있는 판단기준을 제공할 수 있는 것으로 확인되었다.

• 전기학회논문지
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• 제57권6호
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• pp.1087-1094
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• 2008

This study describes a system for human sensibility evaluation using PPG(photoplethysmogram) signal and biofeedback algorithm to respond the bad(negative) mood. For this objective, PPG signals for two emotional states(positive/negative) are collected. To evoke the test emotions, happy(or joyful) and sad(or irritating) movie files are collected and played in subjects' monitor. From the acquired PPG signal, the heart rate variability(HRV) is calculated. Using the HRV and its FFT spectra, the human sensibility is evaluated. Since the heart is a representative organ which is controlled by the autonomic nervous system(ANS), the ANS may reflect the changes in emotion. The biofeedback algorithm is designed with motion image player interacting with the results of the sensibility evaluation. It was shown that HRV was changed according to the subject's emotions. Accordingly, the sensibility evaluation test showed feasibility of the our method.