• Title/Summary/Keyword: Feasibility evaluation

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Feasibility Evaluation of Korean Advance Directives (K-AD) (한국판 사전의료의향서(K-AD)의 가용성 평가)

  • Kim, Shin Mi;Hong, Sun Woo;Kim, Jin Shil;Kim, Ki Sook
    • The Journal of Korean Academic Society of Nursing Education
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    • v.20 no.4
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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.

How to Improve R&D Pre-Feasibility Study System (연구개발 분야 예비타당성 제도의 개선방향)

  • Choi, Seok-Joon;Kahn, Hyung-Sik
    • Journal of Korea Technology Innovation Society
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    • v.11 no.2
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    • pp.287-313
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    • 2008
  • Even though the pre-feasibility study was introduced in 1998, it mainly has focused on transportation social overhead capital(SOC) such as road and railroad. Last year, however, the government newly launched R&D project area for the pre-feasibility study. This paper tries to analyze the pre-feasibility study methodology and system that applied to R&D facility, cluster, and sized R&D infrastructure projects. In depth study of economic, policy, and AHP analysis, this paper shows that the preliminary feasibility study have some caveats and suggests a way of improvement for making up for limitation. Main suggestions are as follows; First, to improve the fit in R&D sector analysis, using consistent method is important. Second, technology analysis is essential for R&D evaluation. Third, technology experts should take part in AHP analysis.

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Case Study and Evaluation of Economic Feasibility of Combined Heat and Power System using Woodchip Biomass (우드칩 바이오매스를 이용한 열병합발전 운영 사례 분석)

  • Suh, Gill Young;Kim, Sung Hyun
    • New & Renewable Energy
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    • v.8 no.4
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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.

A Development of Quantitative Analysis Model for the Policy Analysis in Feasibility Study Using the Performance Assessment Method (성능평가기법을 활용한 타당성조사 정책적 분석단계의 정량적 의사결정모델 개발 - 복수대안의 타당성 평가를 중심으로 -)

  • Lim, Yong-Soo;Song, Hyun-Young;Jeong, Han-Kee;Jeong, Min-Chul;Kong, Jung-Sik
    • Korean Journal of Construction Engineering and Management
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    • v.12 no.2
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    • pp.89-100
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    • 2011
  • As an impactive factor on industries and national economy, The Social Overhead Capital(SOC) is major factor to determine the national competitiveness and the investment of SOC is essential for its economic growth. Accordingly, introduction of the preliminary feasibility study and establishment of legal institutionalization and evaluation system has been carried out and reviewed since 1999. Nevertheless of these efforts, basic problems such as lack of scientific method for investment evaluation and loss of effectiveness on feasibility studies are continuously being brought up. Moreover, as the preliminary study to improve the mentioned problems is mainly focused on the economic and estimated demand analysis, the study of policy analysis, the most important phase during a feasibility study, is still insufficient. Therefore, in this paper, a quantitative decision-making model, to which the performance assessment method of Value Engineering(VE) is applied, is developed and proposed to improve the policy analysis of (preliminary) feasibility study that requires combining with relative studies, to induce quantitative analysis method, and to contribute the improvement of value on the political aspect for SOC investment goals and use as a strategic decision-making method by systematic analysis.

Development of Land Suitability Classification System for Rational Agricultural Land Use Planning (농지이용계획의 합리적 책정을 위한 농지적성 평가기법의 개발)

  • 황한철;최수명
    • Journal of Korean Society of Rural Planning
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    • v.3 no.2
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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.

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Evaluation and Optimization of Power Electronic Converters using Advanced Computer Aided Engineering Techniques

  • Oza, Ritesh;Emadi, Ali
    • Journal of Power Electronics
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    • v.3 no.2
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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.

Nondestructive Evaluation of Concrete Members using Impact Echo and SASW Methods (충격반향기법과 표면파기법을 이용한 콘크리트 부재의 비파괴 검사)

  • 김동수;박형춘;이광명
    • Proceedings of the Korea Concrete Institute Conference
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    • 1995.10a
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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

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Revenue Transfer as an Important Benefit Item for Railroad Investment Analysis (철도투자분석을 위한 효과항목과 수익 고려방법)

  • 서선덕;양근율
    • Proceedings of the KSR Conference
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    • 2001.10a
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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.

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A study on the Feasibility Analysis factor Model for Housing Development Projects (주택개발사업의 사업성분석인자 모델에 관한 연구;사업성 분석인자의 중요도 분석 및 타당성 검증을 증심으로)

  • Hong, Yeong-Geon;Kim, Young-Ai;Kim, Yong-Su
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • 2007.11a
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    • pp.249-254
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    • 2007
  • The main bodies of housing markets of today need to carry out a systematic and objective feasibility analysis even from the step of planning in order to succeed in a diverse and complex market environment. Therefore, it is meaningful to understand this housing market environment and propose a necessary model for the feasibility analysis of hosing business. In this vein, the aim of this study was to extract an actual and practical feasibility analysis factor and its importance for housing market, and then present and apply a feasibility analysis factor model to an on-site example, in order to verify the model's validity. For this, the investigator interviewed with and carried out a questionnaire survey of experts in housing development projects. Study findings are as follows:First, the feasibility analysis factor, derived in this study, could provide a ground to evaluate the feasibility of subject projects in the planning of development through an analysis index. Second, when feasibility is under the level of carrying out the projects, it is possible to reexamine the projects through extracting analysis factors of which points are under the standard and via a feedback process for improvable analysis factors. Therefore, the result of applying the feasibility analysis model of this study to actual housing development projects analytically shows that the model could provide a practical evaluation criterion to the person in charge of project development through an analysis index.

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Development of a Human Sensibility Evaluation and Biofeedback System using PPG (맥파를 이용한 감성평가 및 바이오피드백 시스템 개발)

  • Lee, Hyun-Min;Kim, Dong-Jun
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.57 no.6
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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.