• Title/Summary/Keyword: 1-라인 모형

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A Study on the Successful Introduction of Renewable Portfolio Standards Using Linear Programming Models (선형계획법을 이용한 RPS 제도의 효과적 도입 방안)

  • Lee, Hyeong-Seok;Yang, Seung-Ryong
    • Environmental and Resource Economics Review
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    • v.19 no.1
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    • pp.159-198
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    • 2010
  • The Korean government is planning to introduce the Renewable Portfolio Standard (RPS) system to replace the currently used Feed-in-Tariff (FIT) system which is a subsidy-based mechanism to foster the renewable energy industry. The RPS system is a market-oriented system in which the power companies are obliged to use renewable energy sources to produce electricity by a certain ratio of their production level. They can either produce for themselves or simply purchase the REC (renewable energy certificate) in the market to implement. The objective of this article is to compare the RPS system with the current FIT system in terms of the implementing cost to achieve the policy goal to expand the share of renewable energy m the total power generation. The analysis is conducted using Linear Programming models. The results of this study imply several policy suggestions to successfully introduce the RPS system.

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National Accounts and Greenhouse Gas Emissions: The Korea's NAMEA-air (국민계정과 온실가스 배출: 한국의 NAMEA-air 편제)

  • Kim, Jong-Ho;Kim, Hoseok
    • Environmental and Resource Economics Review
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    • v.19 no.4
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    • pp.963-1001
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    • 2010
  • The national accounting matrix including environmental accounts(NAMEA) includes informations on environmental pressures in relation to economic activities as developed in the national accounts. In the NAMEA, conventional national accounts tables have been extended with accounts in physical units. This paper describes the background for work carried out on environmental accounts in Korea and explains how the NAMEA-air is developed. The Korea's NAMEA-air provided here serves several purposes; (1) a consistent and systemic feature of the interrelationship between the economy and the environment; (2) a basis for environmental economic analysis; and (3) the vital information for climate and air policy planning.

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A Study on the Mid-Long Term Direction for Development of Software Cost Estimation Guidelines (소프트웨어 사업대가기준 중장기 발전 방향에 관한 연구)

  • Kim, Woo-Je;Kwon, Moon-Ju
    • The Journal of Society for e-Business Studies
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    • v.15 no.1
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    • pp.139-155
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    • 2010
  • The purpose of this paper is to develop a framework of software cost estimation guidelines and to derive a mid-long term direction for development of the software cost estimation guidelines. In this paper, all the steps in the software life cycle are researched in the view of cost estimation, and current software cost estimation guidelines and models have been reviewed and analysed first. Second, a plan to separate unit cost per function point from standard procedure in current software cost estimation guidelines is presented to strengthen maket self-regulating function as a mid-long term developmental direction for software cost estimation guidelines. Third, construction of cost repository, making standard procedure for software cost estimation guidelines, development of various kinds of software cost estimation models, and a system for experts on software cost estimation are presented as the prerequisites for the future model framework of software cost estimation guidelines. Finally a roadmap for establishing the future model is proposed.

The Gender Gap of Wages for Social Workers : An Analysis for Workers at Social Welfare Institutions in Daegu Metropolitan Area (사회복지종사자의 성별 임금격차와 그 요인 : 대구광역시 사회복지기관을 중심으로)

  • Kim, Hwanjoon
    • Korean Journal of Social Welfare Studies
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    • v.47 no.3
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    • pp.139-159
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    • 2016
  • This study aims to investigate the wage gap between male and female workers at social welfare institutions and to determine its factors. For this purpose, a Blinder-Oaxaca decomposition and regression models are applied to analyze wage survey data. The results are as follows. Firstly, the gender wage gap of social workers is a bit smaller, compared to the average of wage earners. Secondly, about two-thirds of wage gap is due to differences in productivity(endowment) factors; the other part is due to discrimination. Thirdly, the most important cause of gender wage gap is career disruptions of female workers largely due to marriage and birth. Fourthly, other causes of gender wage gap include differences in education, in job grade, in employment status, and in the characteristics of institutions. Finally, among the discriminating factors worsening gender wage gap, a key factor is a gender discrimination in the compensation for age.

Social Changes and Changes of the meaning of leisure in Korea (한국의 사회변동과 여가의 의미변화: '놀고 있네'에서 '신바람'으로)

  • Sokho Choe
    • Korean Journal of Culture and Social Issue
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    • v.17 no.1
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    • pp.115-130
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    • 2011
  • As Korean society was changed from the traditional into the modern and once again is transforming into high modern society, meanings of leisure also are changing. However there were not many researches on changes of the two and even those were rarely found that leisure studies are based on theories in Korean academic context. The study provides changes of meanings of leisure from the theory of civilizing process and a detailed and critical examination of crises of Korean national identities in globalising society. As such reminds us that at a time changing structure of psyche and society delivers a new approach to our evaluation and appreciation of leisure. During the modernizing of Korean society work was a top priority and leisure could not take any priority over all other social institutions. However in a globalising world leisure has been taking as a vital sources of Korean dynamics.

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Evaluation of Applicability of HMS-25 as the Railroad Roadbed Material (철도 노반재로서의 수경성 입도 조정 고로슬래그(HMS-25)의 적용성 평가)

  • 황선근;이성혁;이시한;최찬용
    • Journal of the Korean Geotechnical Society
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    • v.16 no.1
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    • pp.157-165
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    • 2000
  • The applicability and performance of HMS-25 as the railroad roadbed materials were evaluated through the model and laboratory tests. The uniaxial compression test of HMS-25, model soil box test, and combined resonant column and torsional shear test were performed for static and dynamic analysis of railroad roadbed. The uniaxial compression test result of HMS-25 shows steady increase in strength due to hardening chemical reaction between HMS-25 and water. The result of model soil box test reveals that railroad roadbed of HMS-25 is better than that of soil in several aspects such as bearing capacity and settlement. The combined resonant column and torsional that shear test result indicates that shear modulus of HMS-25 increases with the power of 0.5 to the confining pressure and that shear modulus increases with the increase of curing period.

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Effects of Seller's Influence Tactics on Customer's Psychological Obligation, Trust, and Repurchase Intention in Offline Cosmetics Selling Channel: Moderating Effect of Perceived Service Quality (오프라인 화장품 구매경로에서 판매원의 판매설득전술이 고객의 심리적의무감과 판매원 신뢰, 재구매의도에 미치는 영향: 지각된 서비스 품질을 조절효과로)

  • Kang, Byeong Jun;Yi, Ho-Taek
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.17 no.5
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    • pp.205-221
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    • 2022
  • In this study, the authors investigated the effect of salesperson's Selling Influence Tactics (SIT) on customers' psychological obligation, trust in salespersons and repurchase intentions in the offline cosmetics purchase channel. In addition, we examined the moderating effect of service quality perceived by customers. To this end, a survey was conducted on 298 customers who had purchased cosmetics through the offline sales channel, and the authors conducted hypothesis testing through a structural equation model. As a result of the study, first, among salesperson's sales influence tactics, emotional appeal tactics (H1a), customer ingratiation tactics (H1d), and personal appeal tactics (H1e) were found to affect the psychological obligation of customers, and emotional appeal tactics (H2a), rational persuasion tactics (H2b), information provision tactics (H2c), and customer ingratiation tactics (H2d) were found to affect trust in salespeople. Third, it was found that the psychological obligation did not have a positive (+) effect on the customer's repurchase intention, and the customer's trust in the salesperson had a positive (+) effect on the repurchase intention. Third, perceived service quality showed a significant moderating effect between psychological obligation and repurchase intention, trust in salesperson and repurchase intention. In previous studies on salesperson's Selling Influence Tactics (SIT), many studies examined salesperson's Selling Influence Tactics (SIT) by specifying sub-variables in a limited way, and studies confirming marketing factors such as repurchase intention were also insufficient. Therefore, the results of the empirical research confirmed based on this study are expected to help the standard or direction of the salesperson's Selling Influence Tactics (SIT) in future studies. In addition, this study describes implications for providing help in employee education and management for small business owners who manage and operate offline cosmetics stores, and sales strategies that should be strategically established to improve perceived service quality for customers.

A Study of the Moderating Role of Heterogeneity in the Process of Customer Satisfaction Formation on Public Services (공공서비스의 이질성 정도에 따른 고객마족혀엉과정 차이에 관한 연구)

  • Kim, Young-Ku;Kim, Kyoung-Hwan;Ha, Young-Chul
    • Journal of Global Scholars of Marketing Science
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    • v.8
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    • pp.207-232
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    • 2001
  • Many customer satisfaction studies have accepted the confimation/disconfirmation paradigm, but the findings as the antecedents of consumer satisfaction are mixed. So rather than asking whether or not there is a direct effect of a certain variable on satisfaction, it is necessary asking when does a certain variable have a direct effect on satisfaction. According to this result, we assume that the situation has a direct effect on satisfaction. So this study has investigated the moderating role of perceived heterogeneity as a unit of situation, in the process of customer satisfaction formation, especially on public service. We have found such thing as follows. 1) situation has an effect on customer satisfaction. 2) perceived heterogeneity of the customers, as a situation variable, lets the process of their satisfaction formation differ. 3) through these studies, the confirmation/disconfirmation paradigm are able to extend on public services.

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Development of a Theoretical Model for STEAM Education (융합인재교육(STEAM)을 위한 이론적 모형의 제안)

  • Kim, Sung-Won;Chung, Young-Lan;Woo, Ae-Ja;Lee, Hyun-Ju
    • Journal of The Korean Association For Science Education
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    • v.32 no.2
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    • pp.388-401
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    • 2012
  • This study attempted to propose a theoretical model for STEAM education, entitled to the Ewha-STEAM education model, which could provide more concrete guidelines for science educators and curriculum developers to execute STEAM ideas. We identified key knowledge and key competencies to nurture future creative/convergent human resources. Key knowledge included an understanding of core ideas cutting across traditional disciplinary boundaries as well as the nature of different disciplines. And additionally, key competencies implied such abilities as to explore the scientific world, to resolve problems, and to communicate and collaborate with others. We also added creativity and character as an essential part of key competencies. In order to provide more specific guidelines when developing, implementing, and evaluating STEAM curriculum, we suggested three elements of convergence to consider: 1) unit of convergence (i.e. concept/skills, problem/phenomenon, activity), 2) degree of convergence (i.e. multi-disciplinary, inter-disciplinary, extra-disciplinary), and 3) context of convergence (i.e. personal, societal, global). It is expected that the Ewha-STEAM education model would contribute towards diverse education communities understanding the direction of STEAM education and its educational potentials.

Optimizing Locations for Micro-mobility Parking Area based on User Big-data Analysis (빅데이터 기반 공유형 마이크로 모빌리티의 주차시설 입지 최적화 연구)

  • Choi, Nakhyeon;Kim, Junghwa
    • KSCE Journal of Civil and Environmental Engineering Research
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    • v.43 no.2
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    • pp.195-206
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    • 2023
  • Most of the Micro-mobility parking in Korea use Dockless system. However, Dockless can result in cluttering, infrastructure deficiencies, and safety challenges as has been observed in cities. It is necessary to introduce a Station Parking system in order to solve the drawbacks of the dockless, but the introduction without engineering has low accessibility and induces side effects. In this study, to decide optimal location about number of the Micro-mobility Station, we has been applied the MCLP model about the coverage range, usage demand, usage time in order to classify the type of Micro-mobility Station. For the MCLP, User Date input to reflect realistic demand in Bundang new town, Korea. The result show that the optimal number of facilities in 400 m was 146, and the coverage ratio was 99.83 %, which was most suitable coverage for solving the parking problem. We also classified the demand into 4 levels and the usage time into 3 levels, and by crossing them, we were able to classify the Parking lot types into 12 types. It is possible to propose strategic policies in the installation and operation of Micro-mobility Parking System.