• Venture DIGEST
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• s.60
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• pp.25-25
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• 2004

농부들의 양손 가득 한해 수확물이 풍성하다. 봄에 씨를 뿌리고 여름철 뙤약볕 아래서 땀 흘리며 일한 결과다. 기업경영에도 어찌 사계절이 없으랴. 물을 주고 벌레를 잡듯, 기업도 기술을 개발하고 경쟁력을 높여야만 성공이라는 달콤한 열매를 맛볼 수 있다.

• Journal of the Korean association of regional geographers
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• v.21 no.1
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• pp.98-113
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• 2015

In this study, spatial and temporal patterns and changes in seasonal multi-day cumulative extreme precipitation events defined by maximum 1~5 days cumulative extreme precipitation observed at 61 weather stations in the Republic of Korea for the recent 40 years(1973~2012) are examined. It is demonstrated that the magnitude of multi-day cumulative extreme precipitation events is greatest in summer, while their sensitivity relative to the variations of seasonal total precipitation is greatest in fall. According to analyses of linear trends in the time series data, the most noticeable increases in the magnitude of multi-day cumulative extreme precipitation events are observable in summer with coherences amongst 1~5 days cumulative extreme precipitation events. In particular, the regions with significant increases include Gyeonggi province, western Gangwon province and Chungcheong province, and as the period for the accumulation of extreme precipitation increases from 1 day to 5 days, the regions with significantly-increasing trends are extended to the Sobaek mountain ridge. It is notable that at several scattered stations, the increases of 1~2 days cumulative extreme precipitation events are observed even in winter. It is also observed that most distinct increasing tendency of the ratio of these multi-day cumulative extreme precipitation to seasonal total precipitation appears in winter. These results indicate that proactive actions are needed for spatial and temporal changes in not only summer but also other seasonal multi-day cumulative extreme precipitation events in Korea.

• Journal of the Korean Geographical Society
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• v.41 no.4 s.115
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• pp.435-456
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• 2006

This study examines the long-term spatial patterns and recent trends of seasonal onsets and durations defined by daily temperatures in South Korea for the period 1973-2004. Spatially, spring and winter onset dates show approximately 44 day and 63 day maximum difference respectively between south and north (Seongsanpo to Daegwallryeong) attributable to the impacts of latitudes and altitudes. In contrast, summer onset, which is more affected by proximity to oceans and altitudes than by latitudes, begins earlier in interior low elevated areas than in the coastal areas but earliest at higher latitudes than Jeiu Island. Five climatic types regarding the seasonal cycles in South Korea are spatially clustered according to the combination of longer seasonal durations. As a reflection of recent climate changes on seasonal cycles in South Korea, winter duration was shortened by 10 days during the post-1988 period due to a late winter onset of 4 days and an early spring onset of 6 days. The winter reduction began in the southern regions of the Korean Peninsula in the mid-1980s and spread northward during the 1990s period, ultimately appearing everywhere. In urbanized cities, where much of the surface is covered with asphalt or concrete, the winter reduction was intensified and summer duration was locally incremented. The reduced winter duration in recent decades shows significant teleconnections with variations of geopotential height (925hPa) in the eastern Arctic region ($0-90^{\circ}E$, $65-85^{\circ}N$) during the cold season. The reduction in winter duration in South Korea agrees with results in overall global warming trends as a climate change signal.

• Korean Architects
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• s.649
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• pp.48-53
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• 2023

• Proceedings of the Korea Society of Costume Conference
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• 2005.10a
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• pp.218-219
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• 2005

• 건강소식
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• v.39 no.7
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• pp.16-17
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• 2015

여드름은 나이와 계절을 가리지 않고 발생하는 피부 최대의 적이다. 사계절 내내 스트레스를 불러오는 여드름의 치료에는 많은 방법이 있지만, 많은 사람들이 여드름 치료 방법을 찾을 뿐 단계에 따른 치료 방법을 찾지는 않는다. 여드름은 잘못 치료하게 되면 흉터가 남거나 오히려 피부트러블이 증기하게 되므로 단계별, 증상별로 치료를 달리하는 것이 중요하다.

• 월간낙농육우
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• s.127
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• pp.27-32
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• 1992

지난 10월8일은 우리가 후리스톨(Free Stall) 우사에 소를 입식한지 정확히 일년이 되던 날이었다 당시만 해도 후리스톨 우사에 대한 정확한 사육보고서가 발표된 적이 없었기에 많은 시행착오를 겪을 우려가 있었다. 지금 발표하는 이글은 필자가 틈바닥(Slatted Floor)이 설치된 후리스톨 우사에서 사계절 동안 소를 사육해 본 결과 겪었던 시행 착오와 우군들의 반응,그리고 후리스톨에서의 자동화및 사양관리등을 담고 있다.

• KOREAN POULTRY JOURNAL
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• v.39 no.3 s.449
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• pp.92-95
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• 2007

우리나라의 환경은 사계절이 뚜렷하여 겨울에는 춥고 건조하며 여름에는 덥고 다습한 기후조건을 가지고 있다. 특히 환절기인 봄에는 기온차가 심하여 환기관리를 잘못하면 심각한 손실을 받을 수도 있다. 따라서 환기관리에 특히 신경을 써야할 계절이라 하겠다. 그 외에도 건강한 병아리, 최적 수준의 사료, 정성어린 사육관리등 여러 가지 필수 요건이 있으나 이중 봄철, 한해의 입추를 준비하면서 농장에서 충분히 조절할 수 있는 사양관리에 대하여 다시 한 번 알아보도록 하자.

• Proceedings of the KIEE Conference
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• summer
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• pp.530-532
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• 2004

옥외 장기실증시험 설비를 구축하여 154(kV) 송전 전압으로 1년 동안 자기애자(36,000lbs) 및 폴리머 애자(154 [kV] 용)에 대하여 비 또는 눈이 올 때 각 계절에 대한 누설전류 특성에 관하여 조사하였다. 그 결과 자기애자는 누설전류가 장마철, 한여름, 가을의 경우 잦은 집중호우로 첫날은 급격한 증가가 보였으면 폭우 후에는 자연세정으로 인한 폭우 전보다 더 낮게 나타났다. 그리고 겨울에 눈이 올 경우에는 적은 양의 눈으로도 자기 애자 표면에 눈의 쌓여 누설전류가 넓은 시간 높게 나타났으며, 겨울비가 올 경우에는 겨울 동안 눈으로 인해 염분 및 진애의 누적으로 폭우에 대하여 사계절 중 가장 높은 누설전류를 나타났다. 한편 폴리머 애자의 경우에는 사계절에 관계없이 누설전류 증감은 크지 않았으나 겨울비가 을 경우에는 누설전류가 수 백 $[\muA]$까지 증가하였다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2022.05a
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• pp.444-447
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• 2022

In recent years, computer vision image classification tasks have become faster and better due to deeper neural network architectures. But while most image classification tasks are designed to classify images based on specific image features (such as distinguishing between cats and dogs), there are not many classification models that have been trained to distinguish between time periods such as day and night or different seasons of the year. And while some research has been done into distinguishing between seasons in images of the same location, this paper presents a varied approach to the problem of seasonal classification of generic images. Three methods for seasonal image classification, from simple feature extraction, to building a convolutional neural network, to transfer learning were studied and the accuracy results were compared and analyzed.