• Industrial Engineering and Management Systems
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• v.12 no.1
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• pp.1-1
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• 2013

• Korean Management Science Review
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• v.14 no.2
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• pp.63-68
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• 1997

Limiting probability in the steady state of regenerative process is one of the most useful characteristics. The formula for this limiting probability in the steady state of the regenerative process is presented in this paper. Because this formula is for the general model, it can be applied to many special systems including 2-unit redundant system. An example for this formula is also presented.

• Journal of the Korean Society for Library and Information Science
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• v.44 no.2
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• pp.29-50
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• 2010

The purpose of this study presents a model of the integrated online library service with LMS (Learning Management System). The new library service is called 'Library on Blackboard' which was developed and implemented by Murray State University Libraries in Murray, Kentucky, USA. This user-centered service with applied information technology has the potential to enhance the quality of the library performance in university libraries. The introduction of the Learning Management System in South Korea has a potential to enhance the education environment and promote new library services. With the emergence of new information technologies and growing popularity in online classes and distance education programs, the importance and usage of Learning Management Systems in higher education has increased.

• Korean Journal of Soil Science and Fertilizer
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• v.48 no.5
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• pp.379-383
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• 2015

Indicators of environmental conditions describe the state of the environment and the quantity and quality of natural resources. This study deduced the evaluation items to assess each sub-indicator for agricultural water quality and conducted the surveying using the Delphi method based on agricultural water quality experts. Considering its importance, environmental, state, and management indicators showed that state indicator such as COD concentration for surface water and $NO_3-N$ concentration for groundwater was ranked as first and followed by amount of fertilizer. Its indicators were correlated with state and environmental indicators in surface water and groundwater. The best management indicators were calculated to assess the agricultural surface water and ground water quality. The indicator could be used in established policies for management and conservation of water resources.

• The Journal of Asian Finance, Economics and Business
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• v.8 no.2
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• pp.545-553
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• 2021

This study examines the role of Leadership style and Organizational culture in predicting employee Performance. The aim of the research is: 1) to know the direct effect of Democratic Leadership on employee Performance, 2) to know the direct effect of Democratic Leadership on organizational culture, 3) to know the direct effect of Organizational culture on employee Performance, 4) to test the role of Organizational culture as mediation the effect of Democratic Leadership on employee Performance. The respondents were all employees at the Education Office East Java. The sampling method was used to collect data from 106 employees at the Education Office East Java, Indonesia, using surveys and questionnaires. The data obtained were analyzed using the Path Analysis with SPSS statistical software. The study had four findings. Firstly, Democratic Leadership has a significant effect on employee Performance. Secondly, Democratic Leadership also has a significant effect on Organizational culture. Thirdly, Organizational culture has a significant effect on employee performance. Fourthly, organizational culture mediates the effect of Democratic Leadership on employee Performance. Furthermore, the direct effect of Leadership style and the mediation role contribute to knowledge. The results showed that implementing Democratic Leadership supported by a conducive organizational culture guides employee to perform better.

• The Journal of Asian Finance, Economics and Business
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• v.8 no.8
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• pp.85-91
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• 2021

This research aims to analyze the impact of Financial Risk (FR), Information Asymmetric (IA), and Earning Power (EP) on Real Earning Management (REM) of listed trading companies in IDX Indonesia. This study aims to analyze the influence of FR, IA, EP, on REM through Operating Cash Flow, Production expense, and Discretionary Expense. The study employs an unbalanced panel of data set from 2014 to 2018 on the activity of all trading companies (15 in total) as selected samples of 48 feasible samples from 144 existing data. The sample used a non probability sampling method with a purposive sampling technique. This research was classified as causative and tested by multiple linear regression model with cross-sectional analysis. The result indicated a significant impact of FR on REM through PROD and DISX but not through COF. How ever, IA, and EP showed significant impact on REM by means of COF but not go by PROD and DISX..The findings in this study contribute to the users of financial reports particularly the stakeholders in defining the determinants of real earning management practices among firms when it comes to decision making.

• Construction Engineering and Management
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• v.9 no.3
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• pp.17-20
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• 2008

• 한국정보디스플레이학회:학술대회논문집
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• 2007.08a
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• pp.251-254
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• 2007

Principal challenges to $\underline{direct\;fabrication}$ of high performance a-Si:H transistor arrays on flexible substrates include automated handling through bonding-debonding processes, substrate-compatible low temperature fabrication processes, management of dimensional instability of plastic substrates, and planarization and management of CTE mismatch for stainless steel foils. Viable solutions to address these challenges are described.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.18 no.3
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• pp.3-8
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• 2008

Ephemeral data are easily revealed if state specific information is stored in insecure memory or a random number generator is corrupted. In this letter, we show that Nam et al.'s group key agreement scheme, which is an improvement of Bresson et al.'s scheme, is not secure against session-state reveal attacks. We then propose an improvement to fix the security flaw.

• Journal of the Korean Operations Research and Management Science Society
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• v.36 no.1
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• pp.13-26
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• 2011

In order to explain the U-shaped pattern of autocorrelations of stock returns i.e., autocorrelations starting around 0 for short-term horizons and becoming negative and then moving toward 0 for long-term horizons, researchers suggested the use of a state-space model consisting of an I(1) permanent component and an AR(1) stationary component, where the two components are assumed to be independent. They concluded that auto-regression coefficients derived from the state-space model follow a U-shape pattern and thus there is mean-reversion in stock prices. In this paper, we show that only negative autocorrelations are feasible under the assumption that the permanent component and the stationary component are independent in the state-space model. When the two components are allowed to be correlated in the state-space model, we show that the sign of the auto-regression coefficients is not restricted as negative. Monthly return data for all NYSE stocks for the period from 1926 to 2007 support the state-space model with correlated noise processes. However, the auto-regression coefficients of the ARIMA process, equivalent to the state-space model with correlated noise processes, do not follow a U-shaped pattern, but are always positive.