• Proceedings of the Korea Air Pollution Research Association Conference
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• 2010.04a
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• pp.576-578
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• 2010

• Proceedings of the Materials Research Society of Korea Conference
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• 2005.05a
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• pp.91-91
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• 2005

• Journal for History of Mathematics
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• v.33 no.6
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• pp.315-325
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• 2020

In this study, how Choi Seok-Jeong made Hadoguodo is presumed. Choi SeokJeong's Hadoguodo does not actually reflect the Hado. But it is verified that Hadoguodo reflecting Hado can be made. In addition, it is verified that Hadoguodo can be made so that not only the sum of the nine numbers of each square are all 207 but also the sum of the nine numbers in the horizontal and vertical directions are all 207.

• Journal of the Korean Society of Radiology
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• v.85 no.1
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• pp.252-252
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• 2024

• Journal for History of Mathematics
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• v.28 no.2
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• pp.73-83
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• 2015

In this paper, we give answers to some interesting questions about a Confucian scholar and mathematician in the late Joseon Dynasty, CHOI Seok-Jeong(崔錫鼎, 1646-1715), who was inducted into the Science and Technology Hall of Fame (http://kast.or.kr/HALL) for his mathematical achievements in October, 2013. In particular, we discover that CHOI Seok-Jeong was able to devote his natural abilities and time to do research on mathematics, and that he frequently communicated with his friend and fellow scholar, LEE Se-Gu(李世龜, 1646-1700), who was an expert on the astronomical calendar and mathematics, based on at least 24 letters between the two.

• Proceedings of the Korean Vacuum Society Conference
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• 1996.02a
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• pp.62-62
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• 1996

• The Journal of Korean Medical History
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• v.18 no.1
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• pp.49-63
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• 2005

Man-Byeong-Hoi-Chun(萬病回春) is the principal book of Gong Tingxian who was a physician in the time of Ming(明) dynasty. It has been widely used in Korea and Japan. We recently analyzed the case reports in the book and found that he made some prescriptions by day and night separately. The method was based on the Jo-Seok-Bo-Beop(朝夕補法) by 薛己. We thought that it was an important key to his ideas in medicine. So we reviewed the origin and the basic principles of Jo-Seok-Bo-Beop and considered the clinical usages.

• Proceedings of the Korea Information Processing Society Conference
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• 2018.10a
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• pp.276-278
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• 2018

급격한 전파를 이용하는 기기의 다양화와 대중화로 인해 많은 전파 관련 보안 문제들이 일어나고 있다. 전파와 생활에서의 안전은 매우 밀접한데 전파의 방해와 교란은 단순 생활의 불편뿐 아니라 신체의 직접적인 피해를 입힐 수도 있기 때문에 전파보호는 매우 중요한 과제이다. 본 내용에서는 그 대안으로 본문의 전파 교란과 교섭을 막기 위한 방안으로 생체정보인 지문을 이용한 암호화된 토큰을만들어 토큰링을 통한 정보의 수신여부를 결정 하여 인증 강도, 호출자의 정보 등이 포함된 동적 보안 속성을 가진 수평 전파를 전송하고 java직렬화와 직렬화 해제 기능을 이용하여 토큰의 고유성을 확인수평전파를 송 수신 하여 해당 문제점을 해결 하고자 제안하였다.

• 한국ITS학회:학술대회논문집
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• 2008.11a
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• pp.602-606
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• 2008

• 한국ITS학회:학술대회논문집
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• 2008.11a
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• pp.578-580
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• 2008