• The Journal of Fisheries Business Administration
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• v.53 no.4
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• pp.15-26
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• 2022

This paper analyzed the price stabilization before and after the fisheries outlook project for seaweed, flatfish, and abalone. First, the stabilization effect was analyzed through the price variation coefficient before and after the observation project. In terms of the variation coefficient, there was no effect that the price was stabilized through the seaweed outlook project. However, it can be seen that flatfish and abalone have a price-stabilizing effect. Second, as a result of analyzing the price stabilization effect through the improved ARMA-T-GARCH model, it was confirmed that seaweed was not statistically significant while flatfish and abalone had a price stabilization effect by statistically significantly reducing volatility of real prices after the introduction of the fisheries outlook project. Third, as a result of analyzing the factors affecting price stability, it was found that the price of seaweed was stabilized after the WTO, but the Japanese earthquake expanded the price volatility. In the case of flatfish, it was analyzed that the price stabilized after the WTO and the Great Japanese Earthquake. Finally, the price of abalone has stabilized since the WTO and the Great Japanese Earthquake.

• Proceedings of the Korean Society of Marine Engineers Conference
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• 2005.11a
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• pp.166-167
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• 2005

• Journal for History of Mathematics
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• v.12 no.2
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• pp.83-97
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• 1999

This paper analyzes the philosophy of mathematics and outlook on the mathematics education as the Ancient Greece in the history of mathematics. This study tried to find out the direction of outlook on the mathematics education in the future.

• Journal for History of Mathematics
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• v.10 no.2
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• pp.53-63
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• 1997

The paper is analyzed the variety of outlook on the mathematics education as the paradigm of the mathematics in the history of mathematics and suggested the direction of outlook on the mathematics education in the future.

• Journal for History of Mathematics
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• v.11 no.2
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• pp.43-54
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• 1998

In this paper we analyze the variety of outlook on the mathematical education as in the history of modern mathematical education and suggest the direction of outlook on the mathematical education in the future.

• Korean Journal of Poultry Science
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• v.39 no.3
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• pp.233-239
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• 2012

Public forecasts for broiler's prices such as Korea Rural Economic Institute (KREI) outlook information are important for producers and agribusiness decision makers in enhancing economic decision making. However, the KREI forecasts have not been fully evaluated so far. In this study agricultural outlook price forecasts for broiler are evaluated under accuracy-based measures and classification-based measures which test the ability to categorize price movements directionally or within a forecasted range. Agricultural outlook price forecasts for broiler are efficient but biased. In the aspect of the monthly direction of price change 59% of its forecasts over the sample period are correct, and actual prices fall within the forecasted range 32% of the time. Results suggest that it is necessary and meaningful for the agricultural outlook center to evaluate the current forecasting method and try to find an alternative method for improving the forecasting technique.

• Journal for History of Mathematics
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• v.14 no.1
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• pp.83-100
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• 2001

The paper analyzes the philosophy of mathematics and outlook on the mathematics education as the philosophy of mathematics in the history of mathematics. We have found that various views of the human society have led us to the various philosophy of mathematics. This change of philosophy have important implications to the didactics of mathematics. This study tries to find out the direction of outlook on the mathematics education in the future.

• 사료
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• s.27
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• pp.81-85
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• 2007

지난 5월 17,18일 양 일간에 걸쳐 한국사료협회(KFA)와 미국곡물협회(USGC)는 국내곡물 구매자들을 대상으로 급변하는 국제곡물시장에 능동적으로 대처하고자 미국CBOT, USGC, Cargil티 Consultant의 발표와 Simulation을 병행하는 "2007 Price Risk Management & World Maize Outlook 세 미나"를 개최하였다. 이 에 본지에서는 세미나 내용을 요약.게재 한다.

• Journal of Korea Water Resources Association
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• v.57 no.1
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• pp.45-58
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• 2024

Drought risk is expected to increase as the frequency, intensity, and duration of droughts increase due to climate change. Drought risk is related to not only hydro-meteorological factors, but also water supply and demand. Recently, along with climate change, socioeconomic factors have also been recognized to increase drought risk. Therefore, it is necessary to outlook the drought risk considering various conditions for coping with future extreme droughts in a timely manner. In addition, considering various drought scenarios help reduce the uncertainty in future drought outlook. In this study, drought scenarios considering climate change scenarios, population, and water demand were created to outlook drought risk for 160 administrative districts in Korea, then new levels of drought risk were assigned based on the results of drought risk outlook to suggest drought management measures. The results showed that the drought risk will increase in the future in 2020, 2025, and 2030, compared to past. Especially the drought risk is likely twice as high in 2030 under the baseline and high scenarios. Applying the drought outlook results from this study to the new methodology for setting the risk levels shows that most regions are in Response (V) in 2020 and 2030 for baseline and high scenarios.

• Journal of Korean Society on Water Environment
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• v.34 no.1
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• pp.67-76
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• 2018

There are 34 mega-cities with a population of more than 10 million in the world. One of the highly populated cities in the world is Seoul in South Korea. Seoul receives $1,140million\;m^3/year$ for domestic water, $2million\;m^3/year$ for agricultural water and $6million\;m^3/year$ for industrial water from multi-purpose dams. The maintenance water used for water conservation, ecosystem protection and landscape preservation is $158million\;m^3/year$, which is supplied from natural precipitation. Recently, the use of the other water for preservation of water quality and ecosystem protection in urban areas is increasing. The objectives of this study is to develop the seasonal forecast method of environmental water in urban areas (Seoul, Daejeon, Gwangju, Busan) and to evaluate its predictability. In order to estimate the seasonal outlook information of environmental water from Land Surface Model (LSM), we used the observation weather data of Automated Synoptic Observing System (ASOS) sites, forecast and hind cast data of GloSea5. In the past 30 years (1985 ~ 2014), precipitation, natural runoff and Urban Environmental Water Index (UEI) were analyzed in the 4 urban areas. We calculated the seasonal outlook values of the UEI based on GloSea5 for 2015 year and compared it to UEI based on observed data. The seasonal outlook of UEI in urban areas presented high predictability in the spring, autumn and winter. Studies have depicted that the proposed UEI will be useful for evaluating urban environmental water and the predictability of UEI using GloSea5 forecast data is likely to be high in the order of autumn, winter, spring and summer.