• 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.

• Journal of the Korea Institute of Building Construction
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• v.23 no.5
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• pp.607-618
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• 2023

Pervasive research underscores the direct correlation between an enhanced safety climate and a marked reduction in accidents. The intricacies of safety climate are governed by three pivotal strata: organizational management, on-site operations, and the broader enterprise framework. Within an organizational context, sustaining optimal performance across these layers poses a considerable challenge, often attributable to the constraints of available managerial bandwidth. It becomes imperative, then, to conceive a phased enhancement blueprint for the safety climate. To orchestrate this blueprint with precision, a discerning understanding of the hierarchy of safety climate metrics is essential, which subsequently guides judicious managerial resource allocation. This investigation is anchored in elucidating the hierarchical significance of safety climate metrics through the Analytical Hierarchy Process(AHP). Implementing the AHP framework, both a questionnaire was disseminated and a subsequent analysis undertaken, culminating in the extraction of relative priorities of safety climate determinants. Consequent to this analysis, "workers' safety prioritization and risk aversion" emerged as the foremost dimension, holding a significance weight of 0.1900. Furthermore, within the detailed elements, "unwavering adherence to safety mandates amidst demanding operational constraints" ranked supreme, manifesting a weight of 0.6663. The findings encapsulated in this study are poised to be foundational in sculpting improvements at an institutional level and devising policies, all with the end goal of fostering an exemplar safety climate within construction arenas.

• Journal of the Society of Disaster Information
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• v.20 no.1
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• pp.93-105
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• 2024

Purpose: This study aims to quantitatively determine the impact on nearby risidents by selecting the amount of chemicals emitted from the workplace among the substances subject to the chemical emission plan and predicting the concentration with the atmospheric diffusion program. Method: The selection of research materials considered half-life, toxicity, and the presence or absence of available monitoring station data. The areas discharged from the materials to be studied were selected as the areas to be studied, and four areas with floating populations were selected to evaluate health risks. Result: AERMOD was executed after conducting terrain and meteorological processing to obtain predicted concentrations. The health hazard assessment results indicated that only dichloromethane exceeded the threshold for children, while tetrachloroethylene and chloroform appeared at levels that cannot be ignored for both children and adults. Conclusion: Currently, in the domestic context, health hazard assessments are conducted based on the regulations outlined in the "Environmental Health Act" where if the hazard index exceeds a certain threshold, it is considered to pose a health risk. The anticipated expansion of the list of substances subject to the chemical discharge plan to 415 types by 2030 suggests the need for efficient management within workplaces. In instances where the hazard index surpasses the threshold in health hazard assessments, it is judged that effective chemical management can be achieved by prioritizing based on considerations of background concentration and predicted concentration through atmospheric dispersion modeling.

• Korean Journal of Social Welfare
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• v.58 no.1
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• pp.175-207
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• 2006

Beveridge report has been supported by domestic and overseas since the second world war and has considerately effected on welfare policy of many countries including UK. But criticism regarding his social security's principles assumptions continuously has been proposed since the 1990s. Certainly, no one might object to the truth that there might be no possibility to come true Beveridge's principles and assumptions. However according to this studies, some of these criticisms were based on wrong understanding, interpretation or recent situation and policy which was executed differently from Beveridge's meaning. It's shown that Beveridge has been more misestimated than what he has to be suffered. Therefore from now on, it is constructive to endeavor to set up the better principles and assumption of social security which can adhere to social solidarity and universalism as well as preserve and improve welfare state' ideology and value considering transformed circumstances rather than criticize Beveridge's principles and assumptions that was suitable for that time.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.32 no.3D
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• pp.283-289
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• 2012

Because railways themselves are not enough to provide door-to-door service, they need to be complemented by a transportation system access the stations and a convenient transfer system to access other railway lines. User friendly service policies include a faster, interconnected, and intermodal transportation system. It becomes more important to use deep subterranean space from an economical standpoint in order to promote railway construction projects. In this research, the authors dealt with construction plan for strengthening capacity of deep subterranean railways. Since deep subterranean railways are situated deeper underground than other railways, they are more difficult to access and transfer to, in addition to psychological pressure. Moreover, deep subterranean railways with high speed add access difficulties as the distance between stations increases. Therefore, the authors discuss not only systemization for uniting deep subterranean railways and other transportation facilities but also reinforcement strategies. The purpose of these strategies is so that deep subterranean railways provide mobility while established railways provide accessibility to overcome this problem.

• Proceedings of the Korea Information Processing Society Conference
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• 2001.10b
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• pp.1589-1592
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• 2001

일반적으로 아웃소싱은 비용절감이나, 경쟁력 확보를 목적으로 기업 외부에서 필요한 자원, 기술력 및 해결방안 등을 찾는 경영기법으로, 단순용역업무에서부터 기업의 핵심기능인 IT 분야에 이르기까지 폭 넓게 활용되고 있다. 특히 IT 아웃소싱은 일상적인 정보시스템의 운영 및 개선, 네트워크 운영 및 어플리케이션의 유지/개선 등을 외부의 전문가에게 맡겨 점진적인 서비스 수준의 향상과 비용의 절감을 유도하고, 내부자원은 핵심역량에 집중시켜, 기업의 경쟁력을 높이는 하나의 경영수단으로 각광 받고 있다. 본 논문에서는 실제 통신서비스업체의 IT분야를 아웃소싱한 사례 연구를 통해서 IT 아웃소싱의 추진 시 필요한 제반사항과 절차, 추진배경등을 알아보고, 아웃소싱 성과를 결정하는 중요 요소인 서비스 성과측정 모델에 대해 연구하였다. '90 년대 후반 통신시장개방, 본격적인 경쟁체제 돌입등 핵심역량강화 차원에서 시작된 아웃소싱은 통신업체 국내최초의 사례로 처음부터 예상치못했던 어려움과 추진과정에서의 시행착오도 많이 겪었다. 또한, 선진외국사례의 아웃소싱 계약사례 및 서비스수준을 평가하기위한 서비스 수준 약정서등 국내 통신업체 환경에 맞게 잘 짤여지도록 수많은 검토와 사례 연구를 통해 계약을 체결할 수 있었으며, 아웃소싱이후 예상되었던 많은 문제점들을 해결하기위해 아웃소싱 인력들의 의욕수준을 높이기위한 직무 재교육, Incentive 제도 도입, 서비스와 관련된 제반 프로세스 재정립 등을 통하여 소기의 성과를 이룩할 수 있었다. 특히, 통신업체 IT 아웃소싱의 성공요인은 계약적 구조적 측면에 해당하는 적정한 서비스의 평가와 이에 상응하는 대가의 지급방안에 대한 것이고 양 사가 만족할 만한 성과를 내가 위해서는 수직적관계가 아니라 제휴관계로서의 Relationship 을 유지할 수 있도록 이 두가지 모두를 고려 해야만 성공적인 아웃소싱 추진에 한걸음 더 나아갈 것이며, 아울러 향후에도 아직 미흡한 분야인 IT 아웃소싱에서 적정수준의 대가지급 방안 및 바람직한 Relationship 에 영향을 미치는 여러 가지 요인에 대해서도 살펴 봄으로써 IT분야의 Outsourcing을 검토하거나, 추진할 때 도움이 될 수 있도록 하고자 한다.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2005.10a
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• pp.221-226
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• 2005

Gifford(1992, 1993, 1997, 1998)는 제한적 주의력(limited attention)의 관점에서 벤처경영자, R&D 관리자, 혁신자, 벤처 캐피탈의 의사결정을 연구하였다. 창업경영자 (entrepreneurs)는 기술 개발, 제품디자인 개발, 원자재 확보, 제품 생산, 유통채널 확보, 가격정책 결정, 판매촉진 및 마케팅정책 결정 등의 다양한 경영활동을 수행하고 끊임없이 창업기회(entrepreneurial opportunities)를 추구하는 사람이다. Gifford 는 벤처 경영자를 창업기회와 다양한 경영활동의 포트폴리오(portfolio)를 수행하고 관리하는 대리인으로 간주한 '마술사 모형(Juggler model)' 을 제시하고 이익극대화의 관점에서 대리인의 의사결정을 분석하였다. 그녀는 모형을 통하여 특정시점을 지난 기존 메뉴를 포기 하고 새로운 창업기회를 평가하는 '포기정책(discard policy)' 과 아울러 기존 메뉴를 관리한 이후 새로운 창업기회를 평가하는 '연령검사(age inspection)' 를 동시에 사용한다는 결과를 도출하였다. 본 논문은 Gifford의 마술사 모형(Juggler model)을 수정, 발전시켜 창업경영자의 의사결정을 분석하였다. Gifford의 모형은 성장하지 않는 창업기회의 포트폴리오 결정에 대한 모형이기 때문에 창업기회의 성장성이 벤처경영자의 의사결정에 어떤 영향을 미치는가에 대한 논의가 전혀 없었다. 본 논문에서는 창업경영자를 기업가적 활동을 수행하는 사람으로 정의하고 벤처경영자의 의사결정을 분석하였다. 성장률이 큰 기업에서 기업가적 활동을 수행할 때 창업경영자가 창출하는 기업의 현재가치는 크게 증가하게 되는 반면 성장률이 떨어지는 기업에서 기업가적 활동을 수행할때 창업경영자가 창출하는 기업의 현재가치는 크게 감소하게 된다. 또, 창업경영자는 성장률이 큰기업을 선택하면 관리횟수가 줄어들게 되고 이익의 감소 없이 빠르게 수확할 수가 있다. 국가의 정책과 제도가 창업경영자를 보다 성 장률이 높은 기업에서 기업가활동을 하게 한다면 국가경제의 성장속도는 빨라지게 될 것이다.

• Journal of Korea Water Resources Association
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• v.34 no.5
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• pp.415-426
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• 2001

After Disaster Impact Assessment(DIA) Program was particed, the wide variety of hydrological data are estimated by introducing the concept of critical storm duration to calculate the stormwater impoundments as the alternative of increasing runoff due to many developments. Critical storm duration is varied by a lot of hydraulic structures, drainage characteristics, temporal distribution of design rainfall, return period, and runoff models. In this study the methods of estimating the proper volume to design the stormwater impoundments are proposed to determine the required volume by comparing and analyzing the maximum stormwater impoundments in accordance with the impoundment volume and rainfall duration by using the concept of storage ratio presented in the existing studies. The methods of determining the critical storm duration of design rainfall which cause the maximum load from the runoff hydrograph will be studied as analyzing rainfall-runoff using the various runoff models and observed data.

• School Mathematics
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• v.15 no.3
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• pp.503-531
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• 2013

This study aims to investigate how secondary mathematics teachers use mathematics curriculum materials such as textbooks and teachers' guide in planning lessons and for their learning. 24 in-service mathematics teachers participated in surveys and two among them were interviewed. The findings from the data analysis suggest that: a) the teachers actively engaged in decision-making processes of the transition from written curriculum to intended curriculum; and b) the teachers showed a tendency of consulting to the ideas suggested in the curriculum materials for selecting objectives and contents for lessons and the what to assess, not ideas for selecting teaching methods and how to assess. Also, various factors such as students' achievement, participation, interest in mathematics, family environment, and college entrance were identified to influence the teachers' use of the curriculum materials.

• Korean Journal of Social Welfare
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• v.64 no.4
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• pp.31-56
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• 2012

The main purpose of this study is to examine the rewards for "Family Care" from the Japanese Long-Term care policy, to investigate the effects of "The commodification of Family Care" after the introduction of "The Long-Term Care Insurance", and to find out the institutionalization of reward system for "Family Care". First of all, the socialization of "The Long-Term Care" is redefined to be the commodification of family care in this study. Based on this definition, the commodification of family care and the government's involvement are analyzed in conjunction with considering the role of family in the process of Long-Term Care supply, the social evaluation for family care, the family carers' home environment and the position in the labor market. In result, the commodification structure of family care in the Japanese Long-Term Care policy is found, and it helps to understand the reason why the cash payments was just partially introduced.