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노광석,한기영,윤숙자* 한국식생활문화학회 2007 韓國食生活文化學會誌 Vol.22 No.1
The purpose of this study was to investigate the housewives’consumption pattern and preference of the Korean rice cake as a substitute for meal. The rate of housewives who had eaten rice cake as a substitute for meal were 75.30% and those who had not were 20.83%. Usually 62.03% of them ate rice cake for breakfast, and 34.21% did them within one time per a week. Reasons for eating rice cake for meal were investigated on ‘easy to eat(54.51%)’, ‘good taste (24.44%)’and ‘healthy food(14.29%)’. The older housewives wanted healthy rice cake for meal and ate with tea and Kimchi(Dongchimi). The younger ones ate rice cake for meal with tea and milk. Thawing methods of frozen rice cake for meal were different between the older and the younger, respectively, steaming and using microwave. Kinds of rice cake as a substitute meal were Injeolmi(50.75%), Backsulgi(49.62%), Chaltteok (47.74%) and Yaksik(46.44).
Min-Sum 반복 복호 알고리즘을 사용한 Tree-LDPC의 성능과 수렴 분석
노광석,허준,정규혁,Noh Kwang-seok,Heo Jun,Chung Kyuhyuk 한국통신학회 2006 韓國通信學會論文誌 Vol.31 No.1c
본 논문에서는 Tree-LDPC 코드의 성능을 scaling 인자를 이용한 min-sum 알고리즘을 사용하여 나타내고, 그때의 water fall 영역에서의 접근 성능은 density evolution 기법을 사용하여 나타낸다. Density evolution 기법을 통하여 얻어진 최적의 scaling 인자를 사용하게 되면 min-sum 알고리즘을 사용하는 Tree-LDPC 코드는 sum-product 알고리즘을 사용했을 때와 비슷한 성능을 나타낼 정도로 상당한 성능 이득을 갖게 되는 반면 sum-product 알고리즘을 사용했을 때보다 복호 복잡도가 훨씬 줄어들게 된다. 작은 인터리버 크기를 갖는 Tree-LDPC 복호기를 FPGA(Field Programmable Gate Array)로 구현하였다. In this paper, the performance of Tree-LDPC code is presented based on the min-sum algorithm with scaling and the asymptotic performance in the water fall region is shown by density evolution. We presents that the Tree-LDPC code show a significant performance gain by scaling with the optimal scaling factor which is obtained by density evolution methods. We also show that the performance of min-sum with scaling is as good as the performance of sum-product while the decoding complexity of min-sum algorithm is much lower than that of sum-product algorithm. The Tree-LDPC decoder is implemented on a FPGA chip with a small interleaver size.
노광석,양미옥,조은자 한국조리과학회 2002 한국식품조리과학회지 Vol.18 No.1
The nitrite scavenging effect of three kinds of edible wild plants belong to Umbelliferaeceae family was investigated. The contents of crude protein, crude lipid and β-carotene of the plants were in the range of 22.99∼31.00%, 3.51∼5.08% and 5.40∼19.81 ㎎%, respectively. The content of ascorbic acid was very low and selenium was not detected in any samples. The contents of linoleic acid and linolenic acid were 66.46∼77.44%. The content of total phenol was 875.77 ㎎% in Ledebouriella seseloides WOLFF, which was the highest among the samples. The methanol fraction of the plant extract showed higher nitrite scavenging effect than the water fraction. The nitrite scavenging effects of the samples were the highest at pH 1.2 and lowest at pH 6.0, suggesting that it's pH dependent. Nitrite scavenging effect of methnol-soluble fractions obtained from Ledebouriella seseloides WOLFF was 95.3% at pH 1.2, which was the greatest among tested samples. There was a high correlation between the nitrite scavenging effect and the total phenol content.
노광석(Kwangseok Noh),허준(Heo Jun) 한국통신학회 2021 한국통신학회 학술대회논문집 Vol.2021 No.6
본 논문에서는 양자인터넷 정의와 구성요소, 양자인터넷 주요 동향을 확인하고, 양자정보 전송 네트워크 발전 단계와 최근 발표된 미국 에너지부의 양자인터넷 개발 청사진을 살펴본다.