• Proceedings of the Korean Magnestics Society Conference
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• 2008.12a
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• pp.102.1-102.1
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• 2008

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.12 no.1
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• pp.17-27
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• 2012

Broadcast-based data dissemination has become a widely accepted approach of communication in the mobile computing environment. However, with a large set of data items, the expected delay of receiving a desired data increases due to the sequential nature of the broadcast channel. This paper explores the issue of designing proper data allocation on multiple broadcast channels to reduce this wait time, and proposes a new data allocation scheme named near optimal data allocation(NODA). The proposed scheme first partitions all data items in K group based on the theoretical lower-bound of the average expected delay to determine data items which each broadcast channel has to broadcast. Then, NODA further partitions each group of data items in B groups using extended dynamic programming algorithm to broadcast data items allocated on the same broadcast channel in different frequencies. The proposed scheme is capable of minimizing the average expected delay time since it can broadcast data items allocated on the same channel reflecting their popularities.

• Proceedings of the Korean Nuclear Society Conference
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• 2004.10a
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• pp.87-88
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• 2004

• 한국전산유체공학회:학술대회논문집
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• 2003.10a
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• pp.218-219
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• 2003

• Proceedings of the Korean Society of Medical Physics Conference
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• 1999.11a
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• pp.387-389
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• 1999

• Journal of Korea Foundry Society
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• v.31 no.4
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• pp.175-179
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• 2011

• The Korean Journal of Zoology
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• v.9 no.2
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• pp.10-11
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• 1966

한국산 Haemaphysalis 속 진드기는 Ogura and Takada (1927), Akasawa (1938), Jishida(1936), Itagaki Noda, Yamaguchi (1944) 등에 의하여 Haemaphysalis bispinosa, H. campamulata, H. flava의 3 종이 보고되었다. 저자가 1963년 6월 이후 채집한 진드기류를 정리한 결과 Haemaphysalis cornigera , H. Kutchensis 가 한국미기록종임이 밝혀졌으므로 이에 발표하는 바이다.

• 제어로봇시스템학회:학술대회논문집
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• 1993.10b
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• pp.541-544
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• 1993

This paper attempts to propose new procedures to evaluate roughness of ground metallic surface in the range of 1-10.mu.m from data gained by an optical, in-process measurement of the surfaces. Studies are made to process the data of reflected lights pointed at the surface to be measured. Results obtained are compared with those of measurement by stylus roughness meter. Correlations between the two types of roughness measurement are well. The proposed method can be used as a sensor for a polishing robot.

• Bulletin of the Korean Mathematical Society
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• v.44 no.1
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• pp.83-86
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• 2007

We determine the largest integer i such that $0 and the coefficient of $t^{i}$ is odd in the polynomial $(1+t+t^{2}+{\cdots}+t^{n})^{n+1}$. We apply this to prove that the co-index of the tangent bundle over $FP^{n}$ is stable if $2^{r}{\leq}n<2^{r}+\frac{1}{3}(2^{r}-2)$ for some integer r.

• 한국정보디스플레이학회:학술대회논문집
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• 2008.10a
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• pp.903-906
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• 2008

We developed the advanced LTPS (A-LTPS) manufacturing process. The a-Si TFT process was combined with selectively enlarging laser crystallization (SELAX) technology to improve the carrier mobility in the region where the peripheral circuits are to be fabricated. A 2.4-inch IPS-pro LCD panel for personal digital assistant use was successfully fabricated using the developed technology.