• 한국광학회:학술대회논문집
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• 한국광학회 2008년도 하계학술발표회 논문집
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• pp.435-436
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• 2008

• 한국식물생명공학회:학술대회논문집
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• 한국식물생명공학회 2006년도 한국육종학회 공동심포지엄 및 학술대회
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• pp.22.2-23
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• 2006

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2013년도 추계학술대회 논문집
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• pp.410-411
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• 2013

• 한국정보과학회:학술대회논문집
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• 한국정보과학회 2012년도 한국컴퓨터종합학술대회논문집 Vol.39 No.1(A)
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• pp.68-70
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• 2012

피쳐폰(Feature Phone)이 주를 이루던 초기 3G(Third Generation)는 사용자의 데이터 사용량이 많지 않았다. 그러나 스마트폰이 등장하면서 데이터를 이용한 서비스의 다양화, 저렴한 데이터 요금 정책으로 데이터 사용량이 대폭 증가하였다. 이동통신사가 예상하지 못한 데이터 사용량 증가로 3세대 망의 새로운 보안상 취약점이 나타났고 이를 이용한 DoS(Denial of Service) 공격이 발생하고 있다. 본 논문에서는 3세대 망에서 나타날 수 있는 DoS 공격의 하나인 DCH(Dedicated Channel) 고갈형 DoS 공격에 대한 논의하고 정상 사용자의 패킷 사용 패턴을 이용한 탐지 기법을 제안한다.

• International Journal of Internet, Broadcasting and Communication
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• 제15권4호
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• pp.90-99
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• 2023

This paper deals with studying strategy about impact of deep learning (DL) on the factor of Korean economic growth. To study classification of impact factors of Korean economic growth, we suggest dynamic equation of microeconomy and study methods on economic growth impact of deep learning. Next step is to suggest DL model to dynamic equation with Korean economy data with growth related factors to classify what factor is import and dominant factors to build policy and education. DL gives an influence in many areas because it can be implemented with ease as just normal editing works and speak including code development by using huge data. Currently, young generations will take a big impact on their job selection because generative AI can do well as much as humans can do it everywhere. Therefore, policy and education methods should be rearranged as new paradigm. However, government and officers do not understand well how it is serious in policy and education. This paper provides method of policy and education for AI education including generative AI through analysing many papers and reports, and experience.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2013년도 추계학술발표대회
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• pp.977-979
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• 2013

본 논문은 스마트 폰 상의 SNS(Social Network Service)기반의 집단의 지식을 효율적으로 공유할 수 있도록 게임화(Gamification)전략을 도입한 질의응답 시스템을 제안한다. 질의응답 시스템은 신규 사용자 및 이미 많은 사용자가 있는 트위터와 페이스북 서비스에서 제공하는 API를 이용하여 사용자를 확보하고, 질문과 답변을 쉽게 할 수 있도록 한다. 또한 게이미피케이션 전략을 통해 사용자의 적절한 서비스 재 몰입루프를 형성한다. 따라서 제안된 시스템에 따라 서비스의 장기간 사용을 사용자에게 효율적으로 유도할 수 있다.

• 한국임상보건과학회지
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• 제6권1호
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• pp.1065-1073
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• 2018

Purpose. In this study, we aim to clarify the correlation between happiness, appearance, and happiness index among many happiness factors based on the influence of quality of life on the quality of life and the affect of appearance on the happiness index. Methods. We conducted a self - filling questionnaire survey for college students in Busan from March 30 to May 10, 2017, and analyzed 392 copies of the 412 questionnaires, excluding 20 inappropriate copies. In the questionnaire, categorical data were analyzed by frequency and percentage (%) using the SPSS program (ver. 23.0, Chicago, Illinois, USA) by examining 11 items of general characteristics, successive data are presented as mean standard deviation. Results. The higher the grades, the better the dating. Women(3.32) are more likely than men(2.74) at the appearance interest(p>0.001) and the higher the grades, the better. If it's dating someone else, higher than not to do at the appearance interest and all of the questions showed higher interest in appearance. Also there was a high percentage of thought'My life is ideal in all aspects'If it's dating someone else, higher than not to do (p=0.007) Conclusion. At present, There is a high interest in the appearance of dating. In addition, the happiness index according to the current resentment status was higher in both the single item happiness index and the 5 item happiness index, and was significant in the item "My life is ideal in all aspects". Therefore, it is related to the happiness index as well as the appearance interest. Finally, whether or not dating and appearance interest play a role in raising the happiness of the individual.

• 축산식품과학과 산업
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• 제3권2호
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• pp.27-33
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• 2014

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제13권12호
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• pp.6159-6174
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• 2019

Recently, Kim et al. introduced the Hamming + k with m overlapped pixels data hiding (Hk_mDH) based on matrix encoding. The embedding rate (ER) of this method is 0.54, which is better than Hamming code HC (n, n - k) and HC (n, n - k) +1 DH (H1DH), but not enough. Hamming code data hiding (HDH) is using a covering function COV(1, n = 2^k -1, k) and H1DH has a better embedding efficiency, when compared with HDH. The demerit of this method is that they do not exploit their space of pixels enough to increase ER. In this paper, we increase ER using sequential Hk_mDH (SHk_mDH ) through fully exploiting every pixel in a cover image. In SHk_mDH, a collision maybe happens when the position of two pixels within overlapped two blocks is the same. To solve the collision problem, in this paper, we have devised that the number of modification does not exceed 2 bits even if a collision occurs by using OPAP and LSB. Theoretical estimations of the average mean square error (AMSE) for these schemes demonstrate the advantage of our SHk_mDH scheme. Experimental results show that the proposed method is superior to previous schemes.

• 한국재료학회지
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• 제12권10호
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• pp.825-830
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• 2002

The growth rate of solid grains in TiC-XC-2vol% and TiC-XC-30vo1% Ni cermets, where X=Zr, W or Mo, was fitted to an equation of the form $d^3$-$do^3$=Kt. The grain growth behavior during liquid phase sintering at 1673K decreased markedly with addition of $Mo_2$C or WC and increased with addition of ZrC. The contiguity ratio was greater in the alloys with smaller growth rate constant and decreased with increasing Ni content in the $TiC-Mo_2$C-Ni cermet. The grain growth mechanism could be explained by the effect of contiguous grain boundaries in restricting the overall grain growth.