• 한국인터넷방송통신학회논문지
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• 제22권1호
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• pp.103-110
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• 2022

본 논문은 단일 종목에 투자금을 전액 투자하는 것에 비해 다수의 종목에 분산투자하는 것이 투자 위험을 보다 감소시킬 수 있다는 포트폴리오 최적화 문제를 다룬다. 널리 알려진 Markowitz의 수익률에 대한 평균-분산 기법(MV)은 위험요인인 분산(또는 표준편차)을 감소시키기 위해 지배원리를 적용하여 효율적 투자선에 있는 종목들을 대상으로 분산투자하는 포트폴리오를 구성하였다. 반면에, 본 논문에서는 최소표준편차를 가진 종목을 필수 투자종목으로 선정하고, 필수 투자종목과 비양(음의, 무)의 상관관계를 갖는 종목들을 대상으로 포트폴리오를 형성하였다. 제안된 방법을 실험한 결과 MV에 비해 보다 적은 위험(표준편차)을 보였다.

• 한국의류산업학회지
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• 제13권3호
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• pp.353-363
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• 2011

The purpose of this study was to deduce factors organization of brand equity for the exclusive imported brand by Department Store and to analyze it's influence on the performance. Subjects for the quantitative study, quota sampling was adopted in the areas where the subject brands were in place, and 452 questionnaires (141 of hands-on staff, 311 of consumers) were analyzed. The data were analyzed by using factors and reliability analysis, the independent sample t-test, and multiple regression analysis. The results were as follows; 1. The examining the effect of asset evaluation attributes of imported brands(GAP, ZARA) monopolized by certain department stores on business achievement and consumer attitude, it turned out that business achievement in hands-on staff's asset evaluation in view of business entity had meaningful difference according to the contract types of the brand, and that business achievement according to hands-on staff's evaluation and consumer attitude according to consumers' evaluation were different according to the brand asset value. 2. The examining the effect of consumer attitude according to consumers' evaluation, it turned out that preference had meaningful effect on both store preference and intention of re-purchase, while as to ZARA, image had meaningful effect on store preference and intention of re-purchase, and reliability on store preference.

• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.1324-1327
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• 2009

Social infrastructure is the basis of public welfare and should be recognized and managed as important assets. Bridge is one of the most important infrastructures to be managed systematically because the impact of the failure is critical. It is essential to monitor the performance of bridges in order to manage them as an asset. But current analytical methods such as predictive modeling and structural analysis are very complicated and difficult to use in practice. To apply these methods, structural and material condition data collection should be performed in each element of bridge. But it is difficult to collect these detailed data in large numbers and various kinds of bridges. Therefore, it is necessary to collect data of major measurement items and predict the life of bridges roughly with advanced information technologies. When certain measurement items reach predefined limits in the monitoring bridges, precise performance measurement will be done by detailed site measurement. This paper describes the selection of major measurement items that can represent the tendency of bridge life and introduces automated bridge data collection test-bed using wireless sensor network technology. The following will be major parts of this paper: 1) Examining the features of conventional bridge management system and data collection method 2) Mileage concept as a bridge life indicator and measuring method of the indicator 3) Test-bed of automated and real-time based bridge life indicator monitoring system using wireless sensor network

• 유통과학연구
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• 제11권4호
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• pp.51-60
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• 2013

Purpose - The objective of this paper is to investigate the effect of asset specificity, the level of information sharing, the importance of information sharing, and an integrated collaborative environment on supply chain performance. Research design, data, and methodology - Data collection was implemented as follows: questionnaires were distributed to 250 companies that have business ties with Halla Climate Control Corporation. The empirical study to test our hypothesis was based on statistical analysis (using SPSS 18.0 and AMOS 18.0). The hypothesis of this paper is that the asset specificity variable has positive effects on the following variables: Level of information sharing, the importance of information sharing, and integrated collaborative environment. Moreover the variables, the level of information sharing, and the importance of information sharing are strongly influenced by the variable integrated collaborative environment, and these when combined, have an effect on the dependent variable, supply chain performance. We tested our hypothesized model utilizing path analysis with latent variables. Results - According to the results of our analysis, hypothesis H1, which tests whether there is a relationship between asset specificity and the integrated collaborative environment, is supported at the 0.01 level. Hypotheses H2 and H3 were also confirmed, and asset specificity had positive effects (+) on the level of information sharing variable. The importance of the information sharing variable was statistically significant at the 0.01 level. Hypotheses H4 and H5 posited that the integrated collaborative environment variable would have a positive effect on the level of information sharing; the importance of information sharing variable was strongly supported statistically, with a significant p-value below. Moreover, the level of information sharing (H6), and the importance of information sharing (H7) variables also had a statistically relevant influence on supply chain performance. As a result, existence of a collaborative system between companies would influence supply chain performance by strengthening real-time information access and information sharing. Thus, it is important to construct a collaborative environment where information sharing among companies and cooperation is possible. Conclusions - First, with rapid changes in the business environment, it becomes necessary for enterprises to acquire the right information in order to properly implement SCM. For successful SCM, firms should understand the importance of collaboration with supply chain partners and an internally built collaboration system, which in turn will better promote a partnership commitment with suppliers as well as collaborative integration with buyers. A collaborative system, as we suggest in this paper, facilitates the maintenance of a long-term relationship of trust, and can help reinforce information sharing. Second, it is necessary to increase information sharing over time via a collaborative system so that employees of the suppliers become aware of the system. The more proactive and positive attitudes are towards such a collaborative system by the managerial group, the higher the level of information sharing will be among the users. Successful SCM performance is achieved by information sharing through a collaborative environment rather than by investing only in setting up an information system.

• 한국정보과학회논문지:소프트웨어및응용
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• 제33권12호
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• pp.1008-1021
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• 2006

제품계열 공학(Product Line Engineering, PLE)은 최근 각광받고 있는 효율적인 소프트웨어 재사용 접근 방법 중 하나로 핵심자산을 인스턴스화(Instantiate)하여 여러 어플리케이션을 개발한다. 핵심자산(Core Asset)의 구성요소로는 제품계열 아키텍처(Product Line Architecture, PLA), 컴포넌트, 의사결정모델(Decision Model)이 있다. 이런 요소 중, PLA는 핵심자산의 전체적인 구조를 정의하고 있어 가장 핵심적인 요소라 할 수 있다. 현재 많은 PLE 방법론들이 소개되어 있으나, PLA의 구체적인 구성요소와 어플리케이션을 만들기 위해 PLA를 인스턴스화하기 위한 체계적인 기법이 미비하다. PLA의 구성요소를 명확히 정의하고 인스턴스화 프로세스를 상세히 정의하기 위해 정형명세가 효과적으로 사용될 수 있다. 본 논문에서는 먼저 PLA의 메타모델을 제시하고 PLA를 정형명세 언어인 Object-Z로 명세하는 방법을 제시한다. 또한 정형명세를 이용한 인스턴스화 규칙을 제안하며, 이런 규칙은 PLA를 인스턴스화히기 위한 제약사항을 상세히 정의하고 있다. 제안된 정형명세를 적용함으로써, PLA의 인스턴스화는 상세하고 명확하게 수행될 수 있어 고품질의 소프트웨어를 생산할 수 있다.

• 한국위성정보통신학회논문지
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• 제12권4호
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• pp.125-130
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• 2017

최근 항공관광여가 산업시장의 급격한 성장과 정부기관 및 지방 자치단체의 대단위 투자 계획으로 인해 시장 진입을 통한 신규투자와 기존 기업의 다각화에 의한 투자의 확대가 이루어지고 있으나, 투자활동의 기본인 자산 구조 형성 등에 대한 연구가 미진한 상태이다. 이에 따라, 항공관광여가 산업의 대표적인 업종인 항공운수업, 해상운송업, 육상여객운송업 및 숙박업의 자산구조 분석을 통해 자산구조가 경영 성과에 미치는 영향을 분석하고 결과를 제시함으로서, 향후 항공관광여가 산업 자체의 효율성을 높이고, 투자 시 참고할 수 있는 기준점을 제시하고자 한다.

• 한국건설관리학회논문집
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• 제20권2호
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• pp.95-104
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• 2019

EPC 플랜트 프로젝트는 규모와 복잡성 측면에서 시공 이전 단계의 계획 업무가 프로젝트 성패에 큰 영향을 미치기 때문에 프로젝트에 참여하는 주체간의 긴밀한 협력과 의사소통이 필수적이다. 본 연구는 이러한 필요성을 기반으로 플랜트 프로젝트에서 자산데이터를 활용하여 공정계획의 요소정보를 추출하고, 이를 패키지로 구성하여 초기 공정계획을 수행하는 방법론을 상호계획 (IAP, Interactive Planning)의 개념을 통해 제시한다. 프로젝트 초기단계에서 효과적인 IAP를 수행하기 위하여 자산 데이터로부터 공정요소정보를 추출하고 작업 패키지 단위의 공정 계획을 작성하며 작성된 공정계획을 평가하는 세 가지 단계를 제시하였으며 이를 샘플 프로젝트 사례에 적용하였다. 제시된 IAP 방법론을 통해 자산 데이터 활용성 증진과 공정 리스크 사전식별 및 대응책 개발을 도모할 수 있으며 이는 프로젝트를 성공적으로 완료하기 위한 공정 전략 수립의 기반이 될 수 있다.

• 문화기술의 융합
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• 제4권3호
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• pp.99-104
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• 2018

문화유산 산업은 한나라의 흥망성쇠에 결정적 영향을 미친다. 본 연구에서 문화유산 산업에 대한 선진국의 여러 가지 정책과 제도를 소개한다. 이를 통해 나라의 상황에 맞게 고쳐 나아가, 문화유산 산업 발전 관련 정책을 제시한다. 특히 '젊우미'라는 제도를 제안해, 청년취업과 문화유산 산업 증진의 두 가지 발전을 위한 정책을 위해 문화재 보존 인력양성, 문화재의 디지털 데이터베이스화 와 문화재 스토리 발굴을 제안한다.

• 한국관광식음료학회지:관광식음료경영연구
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• 제15권1호
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• pp.81-97
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• 2004

The purpose of this study is to suggest management information through the analysis of relationships between financial characteristics and financial performance to the owners and managers of super deluxe hotels in Korea. The data of super deluxe hotels were collected by the electronic F/S announcement system. Forty-two hotels, which have financial statements for the previous three consecutive years were chosen as the sample of analysis. Return on total assets and times interest earned, asset turnover, current ratio of the super deluxe hotels are correlated. Return on total assets and asset turnover, sales growth rate, times interest earned are also correlated. And productivity and asset turnover of chain hotels are correlated. Based on this study, it can be concluded that chain hotels are maily correlated with growth ratio and activity ratio. Otherwise non-chain hotels are mainly correlated with current ratio and safety ratio.

• 농촌계획
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• 제15권2호
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• pp.69-80
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• 2009

The purpose of this paper is to estimate the regional economic impact of reverse mortgage system based on farmer's net asset of house and farmland together. The regional economic impact was estimated by using inter-regional input-output model. Major findings are as follows: 1) The result of input-output analysis shows that 49,130 million won of production effect, 20,040 million won of value added effect, and 24,759 number of employment effect, 2) Since the result shows that the elderly spend most of the reverse mortgage money for their living expenses, it seems necessary to adopt net asset based reverse mortgage system to improve and stabilize farmers' living conditions and regional economy.