• The Journal of the Korea Contents Association
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• v.19 no.6
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• pp.379-386
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• 2019

It is a study of the changing times of cooking programs that were broadcast and aired on TV. The media has shown a lot of changes in appearance, and it's also showing a lot We want to look at various changes and changes in the times through programs on cuisine and food that many people now prefer. In the preceding study, we looked at changes in media formats and changes in social changes and programs until the 2000s. Based on this analysis, the changes of the cooking program were analyzed according to the changes of the times. For the purpose of this study, changes were divided into cooking and historical changes, which were divided and examined by the period. Through this study, we were able to see the change in the cooking program in an era where changes in diet are mixed with changes in culture. It was possible to see the change through programs that consumers could feel, not unilateral delivery of information, and to see the change from the era of experts to culture. Further, through the introduction and challenge of local culture through food, subsequent research aims to see changes and social phenomena caused by the division of programs.

• Journal of the Korean association of regional geographers
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• v.18 no.1
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• pp.55-70
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• 2012

Busan port has played a part as the main trade gateway in Korea for several decades. However, due to the rapid integration of China into the global economy and the grand changes in global trade structures, the trade gateway system in Korea and the status of Busan port have been transformed. Busan port's role as a trade gateway toward Japan and U.S. has increased during last two decades but, in cases of China, its importance has relatively decreased. Moreover, Busan port's competitiveness has been undermined in the most part of commodity trade. These phenomena reflect the high competition among trade ports which tend to increase the effectiveness of supply chains. Based on the geographical research tradition which has understood a port as a nexus between hinterland and foreland, this study focuses the changes in characteristics of trade freights and the status as a gateway of Busan port. This approach will contribute to the understandings of dynamics in the comtemporary international logistics.

• Korean Journal of Remote Sensing
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• v.29 no.1
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• pp.105-114
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• 2013

Desertification of the East Asia area induced by human's indiscriminate activities and natural causes has gradually expanded and demanded scientific research for monitoring and predicting land cover condition. Therefore, this research classified land types which were compared to MODIS land cover and analyzed the extent of barren zone effecting Korea through yellow dust using S10-DAY MVC NDVI from SPOT between 1999 and 2011. This study used unsupervised classification after processing NDVI Correction and Water Mask for eliminating noise values included in the data for enhancement of classification accuracy. The results of analysis are that there are active variations near the borders of desert, especially the Mongolian steppe and the Gobi Desert in central Asia. In addition, the extent of entire desert has been decreased in the middle of the last decade, although desertification is in going on in East Asia.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.10
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• pp.24-35
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• 2017

This paper reports the results of afield appliance study of the hydraulic well method to prevent embankment seepage, the large-scale embankment experiment and seepage analysis to examine the traits of the seepage pressure. The experimental procedure was focused on the pore pressure after examining the detected value of the pore pressure gage. The inner water levels of hydraulic well were compared with the pore pressure data, which were used to inspect the seepage variations. Two different large-scale experiments were conducted according to the installation points of the hydraulic wells. The decrease in seepage pressure reached a maximum of 37% from the experimental results. The experimental pore pressure results were similar to those of the analyses. In addition, the pore pressure oriented from the water level variations of the hydraulic well showed similar patterns between the experiment and analysis, but if the hydraulic well was deeper, the analyzed water levels were larger than the experimental values.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.14 no.11
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• pp.5762-5770
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• 2013

The purpose of this study was to identify the predictors of motivation to change in people with an alcohol dependence. The participants were 209 peoples with alcohol dependence. Data were collected through self-report questionnaires, which were constructed to include socio-demographics, alcohol drinking-related factors, and psychosocial-spiritual factors. Data were analyzed with the SPSS 19.0 programs. The significant predictors of motivation to change in peoples with alcohol dependence were gratitude, professional support, and age at first admission. These alcohol drinking-related factors and psychosocial factors explained 22.7% of the variance in peoples with an alcohol dependence. These results suggest that motivation to change in people with an alcohol dependents can be changed positively by increasing gratitude and professional support.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.10 no.11
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• pp.3110-3114
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• 2009

Rotor temperature variation is a significant issue in the design of induction motor controls. In the literature, numerous studies have mentioned significant performance degradation due to rotor temperature variation unless it is taken into account. However, those studies have mainly focused on field-oriented control in terms of tracking performance. There was little research about the influence of rotor temperature variation on performance particularly in the case of optimal controls such as maximum torque per amp (MTPA) control strategy. This work investigates how to affect the performance of maximum torque per amp (MTPA) control strategy as rotor temperature varies in time. To this end, investigation was carried out in two ways to see whether the objective of MTPA control strategy is achieved regardless of rotor temperature variation. It is to produce a desired torque with the minimum possible stator current at the same time. Laboratory experiment shows that tracking performance and maximum torque per amp condition is significantly affected by rotor temperature variation as rotor temperature varies, thus ending up with performance degradation of MTPA control.

• Journal of Climate Change Research
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• v.1 no.1
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• pp.21-30
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• 2010

In this study, vulnerability of water resources to climate change was assessed in terms of flood, drought and water management. Criteria and indicators were employed for assessing the vulnerability. The criteria used to assess the vulnerability was sensitivity of the study area, the exposure to climate and the adaptability to climate change. These criteria were quantified and standardized using corresponding indicators. Vulnerability of water resources to climate change is assessed to be generally increasing over time. The appropriate watershed scales are the large drainage basin for national level vulnerability assessment and the small drainage basin for local one.

• Journal of Environmental Impact Assessment
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• v.28 no.1
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• pp.1-22
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• 2019

This study aims at deriving the implications for adaptation policy and research target regarding climate change risk assessment in ecosystem sector in Korea. The common ground of exemplary cases of "world leaders" in terms of adaptation policies and researches was that they emphasize nationwide study on climate change on biodiversity and ecosystem in target of establishing scientific evidence-bases and reducing uncertainty for their national adaptation policies and plans. In light of this trend, Korean government should settle down more successful adaptation structure by leading adaptation system in further national policy-settings to observe UNFCCC and CBD integratedly and effectively, considering the economic value of adaptation in policy, and strengthening scientific research programs and technology developments. Moreover, risks assessment based on diagnoses and analysis on the risk factors (hazard, exposure, and vulnerability) for climate change in nationwide habitats and species and consolidations with subsequent adaptation strategies could make adaptations in ecosystem sector more effective and successful.

• Proceedings of the Korea Water Resources Association Conference
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• 2023.05a
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• pp.61-61
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• 2023

우리나라는 여름철 집중호우 시 발생하는 홍수로 인해 중소하천의 확폭(Widening) 및 하안침식이 자주 발생하고 있으나, 이에 대해 홍수 피해 관점으로만 분석되고 있으며 체계적인 수리학적, 지형학적 분석은 미흡한 실정이다. 본 연구에서는 먼저, 1982-2022년의 지도 및 항공사진, 정사영상 등을 분석하여 포항시 신광천과 냉천 중류의 하도 변화를 살펴보고, 2022년 9월 태풍 힌남노의 내습 시 발생한 홍수로 인해 초래된 하도 변화를 분석하였다. 신광천 항사리 지점의 경우, 하천 우안에 제방이 축조되지 않았던 1982년에는 하폭이 상대적으로 넓었으나, 1992년 제방 축조 이후 우안 충적지가 하도에서 분리되며 하폭이 감소하였다. 2011년의 하도는 대부분의 면적이 식생으로 덮여 하천의 흐름이 잘 관찰되지 않으나, 2021년에 식생 제거로 하도가 식별되지만 하폭은 과거에 비해 더욱 감소하였다. 태풍 힌남노 내습 시 포항시의 6시간 누적 강우량은 315.3 mm 로 100년 빈도를 초과하는 집중호우가 발생하였으며, 그 결과 확폭이 발생하였다. 단면에서 보면 좌안 활주사면은 5 m 가량의 퇴적고를 보였고, 우안 공격사면은 평균 23.3 m 측방으로 침식되었다. 그 결과 1982년 하폭과 유사한 수준으로 확대되었다. 문덕리 지점(공장지대)과 냉천 용산리(아파트)의 경우에도 각각 평균 14 m, 18 m 의 하안침식을 보였다. 이러한 결과는 지난 30여 년 전 축조된 기존 제방이 유실되면서 발생한 것으로 홍수로 인해 과거의 하폭으로 복귀할 수 있음을 의미한다. 2022년 홍수에 의한 하도 변화와 같은 지형학적 변화를 고려할 때, 보다 안정적인 하천관리를 위해서는 하천 설계 시 과거 지도상의 하도 범위 및 기왕홍수로 인한 하안선 변동을 고려하는 것이 필요하다.

• Korean Journal of Remote Sensing
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• v.29 no.2
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• pp.243-251
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• 2013

The optical properties of long-range transported Asian dust were studied by the satellite observations and Sun/sky radiometer measurements from the Aerosol Robotic Network(AERONET) in Northeast Asia. The movement of Asian dust from source regions to downwind areas was tracked by the Ozone Monitoring Instrument(OMI) derived aerosol product imagery. The optical properties of Asian dust were classified for geographical locations, which are source regions such as deserts area in Dunhuang and Inner Mongolia, downwind areas such as Yulin and Beijing, and long-range transported regions such as Korea(Anmyon and Gosan) and Japan(Noto). In general, relatively higher aerosol mass loadings with larger aerosol particles at desert regions were found. Aerosol Optical Depth(AOD) decreased significantly in downwind areas and long-range transported areas, which was accompanied by increased Angstrom exponents. This indicates the effects of aerosol mixing with various pollutants during transport of Asian dust plume on aerosol optical properties. Moreover, relatively high Single-Scattering Albedo(SSA) at 440 nm values ranging from 0.90 - 0.96 and increasing tendency of SSA with wavelength were observed at source region. The spectral dependence of SSA decreased during long-range transport.