• Journal of Nutrition and Health
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• v.41 no.7
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• pp.645-657
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• 2008

This study was conducted to study the relationship between food intakes, glycemic index (GI), glycemic load (GL), and body weight with high school boys residing in Seoul. The subjects of 329 boys were divided into normal weight group (BMI < $23\;kg/m^2$, n = 212) and overweight group (BMI ${\geq}\;23\;kg/m^2$, n = 117) by body mass index (BMI). The food intakes data obtained by the 3-day food record were analyzed by Can pro 3.0 software. Anthropometric measurements and physical activities were collected from each subject. Daily dietary glycemic index (DGI) and dietary glycemic load (DGL) were calculated from the 3-day food record. Body weights and BMI of normal weight group were 58.8 kg and $19.9\;kg/m^2$ and those of overweight group were 79.2 kg and $26.8\;kg/m^2$, which were significantly different between two groups (p < 0.05). Total food and animal food intakes of normal weight group were significantly higher than overweight group (p < 0.05), and vegetable food and other food intakes of normal weight group showed higher than overweight group. All nutrient intakes of normal weight group were higher than overweight group. Dietary fiber, calcium, potassium and folate intakes of normal weight group and overweight group were under 65% of the dietary reference intakes (DRIs). Major food sources of energy intake for both groups were rice, pork and instant noodle in order. Mean adequacy ratio (MAR), an index of overall dietary quality were 0.83 in normal weight group and 0.79 in overweight group, which showed significantly higher in normal weight group than overweight group (p < 0.05). Mean daily dietary GI of normal weight group and overweight group were 67.7 and 68.2, respectively. Mean daily dietary GL of normal weight group and overweight group were 214.6 and 202.7, respectively, and which was significantly different between the two groups (p < 0.05). Major food sources contributed to DGI and DGL were rice ($\geq$ 55%) in both groups. DGI and DGL were not significantly correlated with anthropometric data. Activity adjusted to energy intake was negatively correlated with percentage of body fat (r = -0.1308, p < 0.01) and that was positively correlated with height (r = 0.1227, p < 0.05) and lean body mass (r = 0.1351, p < 0.05).

• Journal of The Korean Association For Science Education
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• v.30 no.8
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• pp.1031-1043
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• 2010

The purpose of this study was to develop the brain compatibility index equation for the brain-based analysis method of science teaching-learning program. To develop the index equation, one sample unit in middle school science programs was selected and analyzed by the brain-based analysis frame (CORE Brain Map). Then, the index equation was derived by the CORE Brain Map. In addition, four sample units in elementary science programs were selected to validate the brain compatibleness index equation. From the random network theory of Erdos and Renyi, this study derived the brain compatibility index equation; (BCI=$\frac{L_o}{11(N_o-1)}{\cdot}{\sum}\limits_{i=1}^4l_iw_i$) for quantitative analysis of science teaching-learning program. With this equation, this study could find the quantitative difference among the teaching-learning programs through the unit and curriculum. Brain-based analysis methods for the qualitative and quantitative analysis of science teaching-learning program, which was developed in this study is expected, to be a useful application to analyze and diagnose various science teaching-learning programs.

• Journal of the Korean Ceramic Society
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• v.42 no.1
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• pp.28-32
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• 2005

The optical properties and intrinsic stress of $Ta_{2}O_{5}$ thin films deposited by Dual ion-Beam Sputtering: (DIBS) and Single ion-Beam Sputtering (SIBS) were studied as a function of the substrate temperature and assist ion beam voltage. The refractive index showed the maximum value (n = 2.144) at $150^{circ}C$ in the SIBS process. When the substrate temperature has above $150^{circ}C$ in the SIBS process the refractive index decreased. In the DIBS process, the increase of the substrate temperature affected the increase of the refractive index at a maximum value (n = 2.1117, at $200^{circ}C$). The low temperature process $(<100^{circ}C)$ can greatly reduce residual stress with the assist ion gun, but the high temperature process was unaffected. As the assist ion beam voltage increase from 250 to 350 V the refractive index increased to 2.185. However, the refractive index was decreased at the range of 350-650 V, As the assist ion beam voltage increased, the stress of the deposited film decreased to 0.1834 GPa at 650 V.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2009.06a
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• pp.206-207
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• 2009

PECVD를 이용하여 상온에서 Silicon nitride 박막을 제조하였다. 그리고 증착 중에 non-invasive ion energy analyzer를 이용하여 이온에너지와 이온에너지 flux룰 측정하였다. PECVD의 소스 파워는 500W, 바이어스 파워 100W으로 고정하고 주파수 250Hz으로 고정된 상태에서 펄스를 인가하여 duty ratio를 30-100%까지 변화시켰다. 작은 duty ratio 범위 (30-70%)에서 duty ratio가 감소할 때, 이온에너지와 이온에너지의 비가 감소하였다. 이 때 감소되는 굴절률은 저이온에너지 변수와 강한 연관성을 지니고 있었다. 굴절률은 1.65-2.46 사이에서 변화하였다.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2009.06a
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• pp.221-222
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• 2009

SiN 박막을 Pulsed-PECVD를 이용하여 증착하였다. 박막특성으로는 굴절률, 플라즈마의 특성으로는 이온 에너지 분포를 duty ratio의 함수로 분석하였다. 50-100%의 범위에서 duty ratio의 감소에 따라 고 이온 에너지는 크게 증가하였으며, 반대로 저 이온 에너지는 감소되었다. 굴절률은 duty ratio의 감소에 따라 증가되었으며, 모든 duty ratio의 변화에서 1.75-1.81 사이에서 변화하였다. 40-90%의 duty ratio에서 저 이온 에너지 플럭스보다 고 이온 에너지 플럭스가 높았다. 한편, 굴절률의 변화는 $N_h$의 변화에 가장 밀접하게 연관되어 있음을 확인할 수 있었다.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2009.06a
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• pp.241-242
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• 2009

펄스-플라즈마를 이용하여 상온에서 실리콘나이트라이드 박막을 제조하였다. 증착 중에 이온에너지 분석기를 이용하여 이온에너지와 이온에너지, flux를 측정하였다. Duty ratio는 30~90%까지 변화시키면서, 이온에너지와 굴절률의 관계를 연구하였다. Duty ratio의 감소에 따라 이온에너지는 증가하였다. 낮은 Duty ratio의 범위에서 이온에너지 flux의 변화가 현저하였다. 굴절율은 Duty ratio의 변화에 따라 복잡하게 변화하였지만 $N_h$과의 강한 상관성을 보였다. 전체 Duty ratio의 변화에 대해 굴절률은 1.819에서 1.846으로 미미하게 변화하였다.

• Korean Journal of Poultry Science
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• v.17 no.4
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• pp.269-274
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• 1990

Chromosome complements of Japanese quail (Coturnix coturnix japonica) were studied using several tissues which involving testis, leukocytes and embryos. The diploid count was estimated to be 2n＝78. Analyzing the metaphase of secondary meiosis in spermatocytes, the haploid count estimated to be n＝39. Morphometric analysis were studied by the centromeric index and relative length of 8 macro-chromosomes and Z, W chromosomes The differences of morphological feature were not significant among tissues. Exceptionally the chromosome 4 shelved a considerable variety in the presence of it's short arm.

• Proceedings of the IEEK Conference
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• 1999.06a
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• pp.926-929
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• 1999

In this paper, we have studied the role of sources gases, SiH$_4$, NH$_3$ and $N_2$, to produce Si-N and Si-H bond in PECVD. The correlations of a deposition rate, a refractive index and a permitivity were investigated with the NH$_3$ flow rate of 6, 9 and 12 sccm, and SiH$_4$ flow rate of 20, 30 and 40 sccm, and substrate temperature of 150, 250 and 35$0^{\circ}C$. But the $N_2$ flow rate and chamber pressure were fixed at 55 sccm and 700mTorr. And then MIM capacitors were fabricated and tested for MMIC applications.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 1996.11a
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• pp.18-21
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• 1996

SiO 7f the SiO/TiN film is used as the insulating layer and TiN film is chosen as the barrier against the diffusion of Al which is the terminal connected by ohmic contact because TiN has the advantageous properties such as good thermal stability and very low diffusion rate in spite of it\`s relatively low specific resistance. In this study we investigated it\`s electrical and optical characteristics to determine refractive index, absorption coefficient and Permittivity. The films are differently fabricated in thickness method for this experiment.

• Journal of KIISE:Databases
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• v.31 no.5
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• pp.468-478
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• 2004

It is essential in various application areas of data mining and bioinformatics to effectively retrieve the occurrences of interesting patterns from sequence databases. For example, let's consider a network event management system that records the types and timestamp values of events occurred in a specific network component(ex. router). The typical query to find out the temporal casual relationships among the network events is as fellows: 'Find all occurrences of CiscoDCDLinkUp that are fellowed by MLMStatusUP that are subsequently followed by TCPConnectionClose, under the constraint that the interval between the first two events is not larger than 20 seconds, and the interval between the first and third events is not larger than 40 secondsTCPConnectionClose. This paper proposes an indexing method that enables to efficiently answer such a query. Unlike the previous methods that rely on inefficient sequential scan methods or data structures not easily supported by DBMSs, the proposed method uses a multi-dimensional spatial index, which is proven to be efficient both in storage and search, to find the answers quickly without false dismissals. Given a sliding window W, the input to a multi-dimensional spatial index is a n-dimensional vector whose i-th element is the interval between the first event of W and the first occurrence of the event type Ei in W. Here, n is the number of event types that can be occurred in the system of interest. The problem of‘dimensionality curse’may happen when n is large. Therefore, we use the dimension selection or event type grouping to avoid this problem. The experimental results reveal that our proposed technique can be a few orders of magnitude faster than the sequential scan and ISO-Depth index methods.hods.