• 프린팅코리아
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• v.9 no.2
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• pp.96-97
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• 2010

동해펄프(대표 김인중)가 2010년 1월부터 무림P&P의 새 사명으로 공식출범했다. 동해펄프는 '무림 P&P'를 사명으로 사용하게 됨에 따라 무림 브랜드를 공유하게 되어 무림그룹의 명실상부한 일원이 되었으며, 펄프&페이퍼의 약자로 국내 유일의 펄프-제지를 논스톱으로 생산한다는 의미를 담고 있다고 설명했다. 무림P&P는 사명변경과 함께 그룹 CI에 맞춰 명함, 서식, 공장 사인 등의 교체를 마쳤으며 홈페이지도 www.morimpnp.co.kr로 변경했다. 무림 P&P는 사명변경과 함께 국내에서는 처음으로 세워지게 되는 '일관화공장'은 새롭게 도약하는 무림 P&P의 상징이 될 것이라고 소개했다. 무림그룹은 자사의 제지전문 정보지인 '좋은 종이' 및 2010년부터 새롭게 진행되고 있는 기업광고를 통해 '일관화공장'에 대해 간결하면서도 고객들의 이해를 돕고 있어 호응을 받고 있다.

• The Korean Journal of Applied Statistics
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• v.21 no.3
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• pp.361-375
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• 2008

We propose proper methods to impute the item nonresponse in 4-8-4 rotation sample survey. We consider nonignorable nonresponse mechanism that can happen when survey deals with sensitive question (e.g. income, labor force). We utilize modeling imputation method based on Bayesian approach to avoid a boundary solution problem. We also estimate a interview time bias using imputed data and calculate cell expectation and marginal probability on fixed time after removing estimated bias. We compare the mean squared errors and bias between maximum likelihood method and Bayesian methods using simulation studies.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.17 no.4
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• pp.143-148
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• 2017

Flash Memory which is light and strong external shock as storage of small electronics like smartphone, digital camera, car black box has been widely used. Since the operation speed of the read operation and the write operation are different from each other, and the flash memory has the feature that it is not possible to overwrite, the delete operation is added to solve these problems. Wear-leveling must also be considered, since the number of erase times of the flash memory is limited. Many studies have been conducted on the substitutional algorithms of flash memory based on these characteristics of recent flash memories. So, to solve the problem that has existing buffer replacement algorithm this thesis divide page into 6 groups and when proposed algorithm select victim page, it consider reference page frequency and page recency.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.31 no.2B
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• pp.107-116
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• 2006

In this paper, we propose a Sensing Resolution-based Grouping(SRG) protocol for wireless sensor networks. SRG is intended for meeting the application's sensing objectives, where sensor nodes are densely deployed and have the determinate accuracy requirement. The primary contribution of this paper is active group header node selection and round-robin procedure, which increase the sensing accuracy and evenly distribute the node energy consumption. The second contribution is use of energy efficient intermediate node selection by considering group size and energy consumption. We present the design principle of SRG and provide simulation results.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.21 no.45
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• pp.329-332
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• 1998

This Paper proposes a mathematical model to solve the cell formation problem with exceptional elements, Exceptional elements are bottleneck machines and exceptional parts that span two or more manufacturing cells. The model suggests whether it is cost-effective to eliminate an EE (by machine duplication or part subcontracting), or whether the intercellular transfer caused by the EE should remain in the cell formation. It provides an optimal solution for resolving the interaction created by EE in the initial cell formation solution. In addition, the model recognizes potentially advantageous mixed strategies ignored by previous approaches.

• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 2004.10a
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• pp.289-292
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• 2004

여러 분야에서 다양한 목적으로 인간처럼 생각하는 시스템을 구현하고자 하는 연구가 이루어지고 있다. 인간의 뇌에서 기억을 담당하는 부분은 시각, 청각, 촉각 등의 감각 정보를 이용하여 새로 들어온 정보가 이미 기억된 정보와 같은가를 비교하여 기존 기억에 적용시키거나 새로운 정보로 기억시킨다. 기존의 모델은 ART를 사용하여 그것을 구현하고 반복 학습되지 않는 정보는 잊혀져 버리는 것과 강한 자극과 함께 입력된 정보는 반복 학습되지 않아도 잊혀지지 않는 것이었다. 그 모델을 이용할 경우 모든 감각에 대한 정보들이 전부 한 번에 처리되었기 때문에 감각별로 정보를 차등적으로 조절하여 처리하기가 곤란하였다. 본 논문에서는 이 문제를 개선하기 위해 기존의 ART를 이용한 모델에서 감각 정보를 비교하는 과정을 퍼지 규칙을 도입한 방법으로 교체하고자 한다. 우선 입력받는 감각 정보의 여러 값들을 감각 별로 그룹화 한 후 그룹별로 퍼지 규칙을 이용하여 비교한다. 기억된 정보들을 퍼지 규칙으로 하고 입력된 정보를 이용하여 각각의 규칙에 대한 결과를 낸다. 이 모델에서는 퍼지를 사용하여 기억된 정보에 대한 이해가 쉽고, 기억된 정보를 이용할 때 규칙을 조절하여 적용하는 것으로 상황에 따라 필요한 감각 정보를 알맞게 적용할 수 있을 것이다.

• Journal of Korea Entertainment Industry Association
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• v.14 no.2
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• pp.63-71
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• 2020

K-Pop is powerful. Once considered to be at the periphery of global music scene, it is now reaching the whole world. Not surprisingly, the media, domestic and foreign, have scrambled to unlock the secrets of K-Pop's phenomenal growth. In doing so, they have not failed to highlight the underside of its success, such as cut-throat competition among idol-group members and the programmed member replacement by their agencies. One of the most notable characteristics in this process is called, in their business jargon, 'the graduation system'. This paper attempts to explicate this management practice unique to K-pop industry. To do so, this paper draws on Rene Girard's work on desires, particularly his notion of mimesis, violence and the scapegoat mechanism. Based on a documentary film, interactive online sites and a monograph that have chronicled how the K-pop girl group <9 Muses> have 'graduated' during their debut process, this paper applies, as its main analytical tool, the scapegoat mechanism and attempts to explore on its basis what 'the system' entails for the K-pop industry in general and the actors working within it in particular.

• Journal of Technology Innovation
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• v.30 no.3
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• pp.1-34
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• 2022

This study examines the effect of CEO age on the value relevance of R&D which is the relationship between R&D expenditures and firm value. The value relevance of R&D expenditures is higher in companies with current older CEOs, while the relationship in companies with younger CEOs is lower than that of other companies. These results suggest that older CEOs tend to be conservative and make prudent R&D investment decisions. Because they make systematic investment decisions with rich experience, they are expected to have higher investment performance in the market. On the other hand, young CEOs choose risky investments in order to have their abilities highly evaluated in the labor market. The market places a high degree of risk on the R&D decision-making of young CEOs. Next, we analyze whether the age of the replaced CEOs affects the relationship between R&D expenditures and firm value. The result shows that the change of management increases the effect of R&D expenditure on firm value. However, in the case of being replaced by a younger CEO, this positive relationship becomes lower than that of other companies, showing results consistent with the case of the current younger CEO. The samples are analyzed by dividing them into conglomerates and non-conglomerates. In conglomerates, the age of the replaced CEOs does not affect the value relevance of R&D expenditures. Only non-conglomerates showed a negative (-) effect on the replaced younger CEOs. These results suggest that conglomerates maintain the stability of R&D management and performance so that the performance of R&D expenditures is not significantly affected by the age of the replaced CEOs. The reason is that mutual checks and support are coordinated within the group through decentralization of work and systematization of decision-making. This study shows evidence that the relationship between R&D expenditure and firm value according to the age of the replaced CEO is a phenomenon that only occurs in non-conglomerates. This phenomenon suggests that conglomerates are stably managing their R&D performance regardless of the change of CEOs or the characteristics of the CEOs.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2008.10a
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• pp.76-94
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• 2008

This paper investigates performance of the Markowitz's portfolio selection model with applications to Korean stock market. We choose Samsung-Group-Funds and KOSPI index for performance comparison with the Markowitz's portfolio selection model. For the most recent one and a half year period between March 2007 and September 2008, KOSPI index almost remains the same with only 0.1% change, Samsung-Group-Funds shows 20.54% return, and Markowitz's model, which is composed of the same 17 Samsung group stocks, reaches 52% return. We perform sensitivity analysis on the duration of financial data and the period of portfolio change in order to maximize the return of portfolio. In conclusion, according to our empirical research results with Samsung-Group-Funds, investment by Markowitz's model, which periodically changes portfolio by using nonlinear programming with only financial data, outperforms investment by the fund manager who possesses rich experiences on stock trading and actively changes portfolio based on minute-by-minute market news and business information.

• Asia Marketing Journal
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• v.10 no.3
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• pp.103-125
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• 2008

After having changed its corporate brand from LG Fire & Marine Insurance to LIG Non-life Insurance in 2006, LIG Insurance has successfully built the corporate image as the leading insurance financial group by engaging in extensive corporate social responsibility activities. LIG, as 'a partner for sharing precious moments of life', intended to provide customers a new value of an insurance by building up the new corporate brand. It established three values to be shared internally. First was to instill a brand value orientation within the organization. Second, the firm identified the brand's value to be delivered to the customers. Third, they defined the image objective to be communicated to them. Based on these set of objectives, the company designed and implemented an integrated marketing communication(IMC) strategy over several years. The result was a successful transition to the new corporate brand name.