• Journal of Science and Technology Studies
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• v.4 no.1 s.7
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• pp.83-110
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• 2004

This article examines the legislation process of internet contents regulation through three phases from a policy network point of view. In the first phase, heated debates were initiated during the public hearings after the Ministry of Information & Communications announced its plan to introduce the internet contents grading system During the second phase, bills were submitted to the Standing Committee of the National Assembly, where the bills were deliberated, passed, and promulgated. In the third phase, issues on enforcement ordinance were resolved as the degree of conflict was mitigated. Policy network during the first phase started in a conflicting and distributed form, but has evolved into a conflicting and centralized form. The appropriate closure of the debate on the internet contents regulation can be explained by the structure of governmental departments, the character of new technology, and the mobilization of general public.

• The Korean Journal of Applied Statistics
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• v.31 no.4
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• pp.485-495
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• 2018

The CCC-r chart is more effective than traditional attribute control charts for monitoring high-quality processes. In-control process parameters are typically unknown and should be estimated when implementing a CCC-r chart. Phase II control chart performance can deteriorate due to the effect of the estimation error. In this paper, we used the standard deviation of average run length (ARL) as well as the average of ARL to quantify the between-practitioner variability in the CCC-r chart performance. The results indicate that the CCC-r chart requires larger Phase I data than previously recommended in the literature in order to have consistent chart in-control performance among practitioners.

• 주택과사람들
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• s.222
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• pp.44-47
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• 2008

미분양 물량 적체와 금융권의 대출 상환 압력 등으로 자금 경색 국면에 처해 있는 건설 업체들이 일제히 목소리를 높였다. 국토해양부의 권도엽 제1차관과 주택 정책 담당자들을 초청한 자리에서 건설 업체 임원들이 건설 업계의 급박한 사정을 알리고 이에 대한 대책 마련을 촉구했다.

• Current Research on Agriculture and Life Sciences
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• v.4
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• pp.141-153
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• 1986

This study intends to document the existing cyclical fluctuations of garic and onion price at farm gate level during the period of 1966-1986 in Korea. The existing patterns of such cyclical fluctuations were estimated systematically by removing the seasonal fluctuation and irregular movement as well as secular trend from the original price through the moving average method. It was found that the cyclical fluctuations of garic and onion prices repeated six and seven times respectively during the same period, also the amplitude coefficient of cyclical fluctuations showed speed up in recent years. It was noticed that the cyclical fluctuations of price in onion was higher than that of in garic.

• Journal of the Korean Data and Information Science Society
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• v.27 no.6
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• pp.1487-1498
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• 2016

In monitoring a process, in-control process parameters must be estimated from the Phase I data. When we design the control chart based on the estimated process parameters, the control limits are usually chosen to satisfy a specific in-control average run length (ARL). However, as the run length distribution is skewed when the process is either in-control or out-of-control, the median run length (MRL) can be used as alternative measure instead of the ARL. In this paper, we evaluate the performance of Shewhart $\bar{X}$ chart with estimated parameters in terms of the average of median run length (AMRL) and the standard deviation of MRL (SDMRL) metrics. In simualtion study, the grand sample mean is used as a process mean estimator, and several competing process standard deviation estimators are used to evaluate the in-control performance for various amounts of Phase I data.

• The Korean Journal of Applied Statistics
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• v.33 no.4
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• pp.451-466
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• 2020

CCC-r chart is effective for high-quality processes with a very low fraction nonconforming. The values of process parameters should be estimated from the Phase I sample since they are often not known. However, if the Phase I sample size is not sufficiently large, an estimation error may occur when the parameter is estimated and the practitioner may not achieve the desired in-control performance. Therefore, we adjust the control limits of CCC-r charts using the bootstrap algorithm to improve the in-control performance of charts with smaller sample sizes. The simulation results show that the adjustment with the bootstrap algorithm improves the in-control performance of CCC-r charts by controlling the probability that the in-control average number of observations to signal (ANOS) has a value greater than the desired one.

• Journal of the military operations research society of Korea
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• v.5 no.1
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• pp.87-97
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• 1979

북한경제는 계획경제가 갖는 기본적 제난점을 바탕에 두고 이에 지나친 외자의존적발전, 자연자족중공업위주의 발전이라는 성장전략을 수행해 왔다. 이러한 성장전략의 모순의 노정으로 북한경제는 앞으로 상황의 급변이 없는 한 침체국면에 빠져들 것이다.

• The Korean Journal of Financial Management
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• v.17 no.1
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• pp.45-65
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• 2000

본 논문은 시장상황별 주식시장의 제 현상이 상이하다는 점을 고려하여 한국주식시장에서 시장 상승기(bull market)와 시장 하락기(bear market)에 대한 주식수익률 분포의 특성을 파악하고, 음의 수익률충격에 대한 비대칭적 변동성과 시장이상현상들 중 하나인 요일효과를 시장 상황별로 실증분석하였다. 본 논문에 사용된 자료는 1990년 1월 3일부터 1997년 3월 31일 동안의 한국종합주가지수 및 자본금 규모별로 대형주지수, 중형주지수, 소형주지수의 명목수익률로 전환된 일별자료이다. 시장상황별 분석을 위하여 시장 상승기와 하락기에 따라 3기의 하위기간으로 구분하여 분석하였다. 분석에 사용된 모형은 EGARCH모형과 수정된 GARCH모형인 GJR모형이다. 분석결과 시장하락기인 하부기간1과 하부기간3에서 음의 수익률충격에 대한 비대칭적 변동성이 강하게 나타나지만 시장상승기인 2기간에는 비대칭적 변동성반응이 나타나지 않았다. 이는 주식시장이 상승국면일 때보다는 하락국면일 때 나쁜 뉴스에 대해 훨씬 민감하게 반응하는 결과이다. 또한 한국주식시장에서 월요일의 수익률이 시장하락기에 음의 수익률을 보이지만 통계적 유의성은 없었으며, 반면에 시장이 상승기인 하부기간2에서는 월요일과 수요일에 통계적 유의성이 매우 큰 양의 값을 나타냈다.

• 주택과사람들
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• no.27 s.44
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• pp.45-47
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• 1994

${\cdot}$ 한국토지개발공사는 전국 37개 택지개발사업지구에서 단독주택지 5,493필지(361,127평), 상업용지 및 업무용지 1,465필지(389,736평)을 수의계약의 방법으로 매각하고 있다. ${\cdot}$ 수의계약으로 매각하는 단독주택지를 매입하는 경우에는 주택공급에 관한 규칙 제 17조의 규정에 의한 아파트 재당첨금지 규정 (민영 5년, 국민 10년)이 적용되지 않는다. ${\cdot}$ 토지시장이 비수기이고 현재 토지가격이 부동산 경기의 침체국면에 있는 가격임을 고려할 때 실수요자에게는 유리한 상황이라 할 수 있다.

• Journal of the Korean Society for Library and Information Science
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• v.40 no.1
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• pp.13-37
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• 2006

Using Grounded Theory. the present study was to discover structure and process of pregnant women's information seeking experience through identifying concepts and relationships of the experience. In-depth interviews were conducted with 16 Participants selected by theoretical sampling. The findings were : 1) Pregnant womens' information seeking was caused by Acceptance of Pregnancy . 2) The phenomenon of information seeking was for Maintaining Normalcy to Pregnancy(MNP), 3) MNP occurred in connection with Perceived Anxiety and Desire to Know 4) Action/interaction Strategies to MNP were related to the Awareness of Ways Acquiring Information. Previous Knowledge. Self-Regulation, and Information Access Environment. 5) Action/interaction Strategies to MNP were Seeking Diagnostic Data of Antenatal Care. Seeking Standard Knowledge. Seeking Experience. and Seeking Emotional Support. 6) As consequences of taking strategies, pregnant women were experienced in Sufficient. or Insufficient. 7) A three-stage process of information seeking was discovered : Comparing, Contextualising, Making sure. 8) In terms of change of information needs during pregnancy, a four-phasic process was discovered. Acceptance Phase. Adjusted Phase, Focusing Phase, and Transitional Phase. Based upon these results. it needs to generate a substantive theory contributed to holistically explain and predict pregnant women's information seeking behavior.