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ARIMA 모델을 이용한 수막재배지역 지하수위 시계열 분석 및 미래추세 예측
백미경,김상민 한국농공학회 2023 한국농공학회논문집 Vol.65 No.2
This study analyzed the impact of greenhouse cultivation area and groundwater level changes due to the water curtain cultivation in the greenhousecomplexes. The groundwater observation data in the Miryang study area were used and classified into greenhouse and field cultivation areas to comparethe groundwater impact of water curtain cultivation in the greenhouse complex. We identified the characteristics of the groundwater time series databy the terrain of the study area and selected the optimal model through time series analysis. We analyzed the time series data for each terrain’s tworepresentative groundwater observation wells. The Seasonal ARIMA model was chosen as the optimal model for riverside well, and for plain andmountain well, the ARIMA model and Seasonal ARIMA model were selected as the optimal model. A suitable prediction model is not limited to onemodel due to a change in a groundwater level fluctuation pattern caused by a surrounding environment change but may change over time. Therefore,it is necessary to periodically check and revise the optimal model rather than continuously applying one selected ARIMA model. Groundwaterforecasting results through time series analysis can be used for sustainable groundwater resource management.
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수막용수 사용으로 인한 시설재배지역의 지하수 수온과전기전도도 변화 특성 분석
백미경,김상민 한국농공학회 2023 한국농공학회논문집 Vol.65 No.6
This study aimed to analyze the impact of water curtain cultivation in the greenhouse complexes on groundwater’s electric conductivity and watertemperature. The greenhouse complexes are mainly situated along rivers to secure water resources for water curtain cultivation. We classified thegroundwater monitoring well into the greenhouse (riverside) and field cultivation areas (plain) to compare the groundwater impact of water curtaincultivation in the greenhouse complex. The groundwater observation network in Miryang, Gyeongsangnam-do, located downstream of the NakdongRiver, was selected for the study area. As a result of analyzing the electric conductivity and water temperature, the following differences were foundin the observed characteristics by region. 1) The electric conductivity and water temperature of the riverside area, where the permeability is high andclose to rivers, showed a constant pattern of annual changes due to the influence of river flow and precipitation. 2) The flat land in general agriculturalareas showed general characteristics of bedrock observation in the case of water temperature. Still, it seemed more affected by the surrounding well'swater use and water quality. The electric conductivity did not show any particular trend and was influenced by the surrounding environment accordingto the location of each point.
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지하수관측망을 이용한 강변 시설재배지역 지하수위 변화 특성 분석
백미경,김상민 한국농공학회 2022 한국농공학회논문집 Vol.64 No.6
The purpose of this study was to analyze the impact of greenhouse cultivation area and groundwater level changes due to the water curtain cultivationin the greenhouse complexes, which are mainly situated along rivers where water resources are easy to secure. The groundwater observation networkin Miryang, Gyeongsangnam-do, located downstream of the Nakdong River, was selected for the study area. We classified the groundwater monitoringwell into the greenhouse (riverside) and field cultivation areas (plain and mountain) to compare the groundwater impact of water curtain cultivation inthe greenhouse complex. The characteristics of groundwater level changes classified by terrain type were analyzed using the observed data. Riversidewells have significant permeability coefficients and are close to rivers, so they are greatly affected by river flow and precipitation changes so that waterlevel shows a specific pattern of annual changes. Most plain wells do not show a constant annual change, but observation wells near small rivers andsmall-scale greenhouse cultivation areas sometimes show annual and daily changes in which the water level drops during winter. Compared to otherobservation wells, mountain wells do not show significant yearly changes in water level and show general characteristics of bedrock aquifer well witha low permeability coefficient.
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백미경(Baek Mi-kyung) 어문연구학회 2022 어문연구 Vol.111 No.-
이 논문은 메신저를 통해 이루어지는 대화에서 사용되는 응답표현의 종류를 분석하여 응답표현의 유형을 분류하고, 그 특징을 기술하는 것을 목적으로 한다. 메신저 앱의 사용이 생활화되면서 사람들은 메신저로 많은 대화를 나누고, 감정을 전달한다. 메신저를 사용한 대화에서는 면 대 면이 아닌 상황에서 실시간으로 의사소통이 이루어지다 보니 청자의 감정을 표현하기 위해 다양한 종류의 응답표현이 사용되며, 응답표현의 여러 가지 변이형 또한 나타나게 되었다. 메신저에서 사용되는 응답표현은 글로 작성된다는 점에서 문어와 유사하지만, 실시간으로 상대방과의 대화가 이루어진다는 점에서는 구어와 유사한 부분도 있다. 일반적으로 메신저 대화에서는 구어와 비슷한 언어가 사용될 것이라고 짐작될 수 있지만, 메신저 대화에서 사용되는 응답표현에 대해서는 그동안 충분한 논의가 이루어지지 않았기 때문에 실제로 이러한 응답표현의 사용 양상이 어떻게 나타나는지를 확인하고자 한다. 메신저에서 사용되는 응답표현의 유형과 특징을 밝히기 위하여 한국에서 가장 널리 사용되는 메신저 앱인 카카오톡에서 이루어진 대화를 활용하였다. 주제는 주로 일상적인 대화 내용으로 구성되었으며, 대화에서 나타나는 응답표현의 사용에 대해 분석하였다. 본 연구는 카카오톡에서 사용된 실제 대화 내용을 활용하여 응답표현을 분석하였다는 데에 의의가 있으며 다양한 응답표현에 대한 분석 결과는 의사소통에서 실제 한국인이 사용하는 응답표현의 상당 부분을 보여줄 수 있을 것이다. 또한 외국인이 한국인과 의사소통을 할 때에 상황이나 화계에 맞는 적절한 응답표현의 사용이 중요하므로 응답표현의 분석 결과는 한국어 교육에서도 유용하게 활용될 수 있을 것이다. This paper examines the types and characteristics of response expressions used in messenger conversations. As the use of messenger apps increases, people also begin to use them to communicate and convey emotions more frequently. In conversations using messengers, it is difficult to express emotions because communication takes place in real time, not face-to-face. Therefore, various types of response expressions are used, and many variants of response expressions have appeared. The response expressions used in chat communications are written, but bear many colloquial features. In general, people think that the response expressions used in messenger conversations will be similar to those used in spoken language. However, there has not been enough discussion about the response expressions used in messenger conversations. Therefore, this study aims to confirm how the usage pattern of these response expressions actually appears. In order to reveal these characteristics, the response expressions used in messenger conversations were analyzed. The contents of the conversations used the actual logs from KakaoTalk, a messenger app that is the most widely used in South Korea. A study using the messenger conversations can show a significant part of the actual communication of Koreans. In particular, this study can be useful in Korean language education because it is important to use appropriate response expressions according to the situation when foreigners communicate with Koreans.
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