• Journal of the Korean Society of Food Science and Nutrition
• /
• v.29 no.2
• /
• pp.224-230
• /
• 2000

In order to study the quality of uncooked-colored wine by using polished black rice(PBR) and glucoamylase, the mixture ration of PBR ws investigated. The growths of yeast and lactic acid bacteria, pH and alcohol concentration of the colored wine prepared by adding PBR in the range of 20 to 100% were higher than those of polished rice only, whereas the contents of residual sugars, total free amino acids and fusel oil of the colored wine were lower. The colored wine prepared by 20% PBR and that of over 80% PBR showed a light red color and a dark red, respectively. The optimal addition ratios of PBR evaluated by palatability of color and flavor, and sensory overall quality was 40 to 60%.

• Journal of the Korean Society of Food Science and Nutrition
• /
• v.38 no.5
• /
• pp.548-554
• /
• 2009

The principal objective of this study was to evaluate the immune activity of Mosidae and the physiochemical characteristics of brown rice Dasik prepared with Mosidae (Adenophora remotiflora) powder. We assessed the effects of Mosidae ethanol extract (MEE) on the production of IL-6T, IL-12 and TNF-$\alpha$ by peritoneal exudate macrophages (PEMs) using ELISA. We also determined general compositions, and conducted Hunter's color values, sensory evaluation, and the mechanical characteristics of Mosidae Dasik stored at room temperature ($20^{\circ}C$). With MEE treatment, ILI-6 (75% of LPS: positive control), IL-12 (35.7% of LPS) and TNF-$\alpha$ (27.32% of LPS) were proliferated at a dose of $1000{\mu}g/mL$. In the general compositions of the samples, fat contents of Mosidae Dasik significantly decreased (p<0.05). The more Mosidae powder was added to the samples, the more was the luminance, and Hunter's a and b were significantly decreased (p<0.05). As more Mosidae powder was added to the samples, springiness score was significantly decreased, but the score of hardness, gumminess and chewiness were increased (p<0.05). The results of sensory evaluation showed that there were significant differences in the color, taste and overall quality of the samples (p<0.05), but there was no significant difference in texture. We note that, among the samples evaluated herein, Mosidae stimulates some kinds of cytokines from machrophage and 1% Mosidae Dasik (MPD1) for the best commercial value.

• Journal of Cadastre & Land InformatiX
• /
• v.45 no.2
• /
• pp.203-216
• /
• 2015

This study focuses on the relationship between housing sale prices and Jeonse prices, amid a recent surge of Jeonse price and Jeonse-to-housing sale price ratio. There are many studies about the relationship between house prices and Jeonse, but they couldn't fully explain what makes them spike up. In addition to this relationship, this paper deals with the difference of Jeonse system on regions and price levels. Using Granger causality and Spearman's Correlation Coefficient, the outcome is drawn. As the result, the expected rate for housing sale prices effects on the Jeonse-to-housing sale price ratio. The higher on sale price, the lower the Jeonse-to-housing sale price ratio regarding the region difference.

• Korean Journal of Construction Engineering and Management
• /
• v.2 no.2 s.6
• /
• pp.81-89
• /
• 2001

Construction industry has particular properties of non-continuity of production, and non-stability of market comparing to other industries. Because of them, the practical construction cost is more difficultly recognized than in manufacturing industry, so, that is various according to many projects. Therefore, it is very hard work to standardize construction cost, and it is worthy of analyzing and measuring exactly construction cost. On this study, the trouble in producing expected construction cost with original cost calculation method is progressed by the data of cost items in complete works. On the basis of analyzing data, as expected cost of practical construction is measured, it can be referred to the method and the standard of indirect labor cost rate in construction.

• Clean Technology
• /
• v.12 no.4
• /
• pp.238-243
• /
• 2006

The aggregate properties of chilled converter slag reformed by atomizing liquid converter slag were investigated. The properties of mortars with various replacement of standard sand by chilled converter slag as recycled fine aggregates were investigated. The particle shape of chilled converter slag by atomizing was a sphere with an open cavity which is enclosed with two layers like a bored coconut. Specific gravity, unit weight and fineness modulus increased with increasing the replacement, and solid content had the maximum at the replacement of 75% and water absorption rate had the minimum at the replacement. The hardened mortars with higher replacements have the higher specific gravity and the denser texture.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.23 no.8
• /
• pp.1907-1914
• /
• 1998

This paper proposes the adaptive connection admission cotrol using the variale MRR(measurement reflection ratio) and the distribution of the number of cells arriving during the fixed interval. This distribution is estimated from the measured number of cells arriving at the output buffer during the fixed interval and traffic parameters specified by user. MRR is varied by the difference of estimated distribution and measurement distribution. As MRR is adaptively varied by estimated distribution error of accepted connections, it quickly reduces estimation error. Also, the scheduling scheme is proposed for multiplexed traffic with various traffic characteristics. For each traffic class, this scheme estimates adaptively equivalent bandwidth and schedules according to equivalent bandwidth ratio of each traffic class, so it improves cell loss rate and link utilization.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2003.05a
• /
• pp.595-598
• /
• 2003

본 논문에서는 방사선투영영상을 기존 압축방법인 JPEG 압축과 새로운 표준으로 채택중인 JPEG2000을 적용하여 압축율 및 영상의 품질을 비교 실험하였다. 기존의 의료영상압축 표준의 하나인 JPEG 압축은 압축비율이 높아짐에 따라 블륵킹 현상의 발생으로 원 영상이 회손되는 압축의 한계를 인식하고 있다. 따라서 원 영상의 보호와 압축율 증가의 두 가지 면을 만족시키기 위해 Wavelet 을 사용하는 JPEG2000을 실험 평가하여 의료영상압축에 적용하고자 한다. 실험대상으로 환자 10명 정상인 10명의 투영영상을 사용하였으며, 영상의 품질, 손상도 등을 평가하기 위해 PSNR( Peak Signal to Noise Ratio )과 판독의에 의한 ROC( Receiver Operating Characteristic )분석을 실행하였다. 실험결과, 영상의 품질, 손상도를 평가하기 위한 PSNR 은 15:1 압축에서 $46.05{\pm}1.1dB$의 값을 얻었으며, JPEG의 같은 압축비율에 비해 $1.78{\pm}0.1dB$의 값이 높음을 알 수 있었다. 종합적으로 3명의 판독의에 의해 ROC 분석을 실행한 결과 15:1의 압축비율에서 압축비율과 품질을 종합하였을 때 진단에 적합한 최적 압축비율임을 보였다.

• Journal of the Korean Society of Hazard Mitigation
• /
• v.11 no.2
• /
• pp.75-80
• /
• 2011

The main objective of this research is to develop fatigue prediction model for flexible pavements using energy ratio factor and phase angle. The two parameters are considered as fundamental properties of time and temperature dependent viscoelastic asphalt concrete materials. The energy ratio factor is defined as the ratio of the pseudo-total cumulative dissipated energy to the cumulative dissipated energy to failure during the test. The phase angle between the stress and strain ware signals stems from the intrinsic the dependent asphalt mixture behavior. The phase angle was computed and the relationship between the initial mixture stiffness and the initial phase angle is presented. As a result, fatigue prediction model for flexible pavements was proposed using intrinsic properties of viscoelastic asphalt concrete materials.

• Journal for History of Mathematics
• /
• v.10 no.2
• /
• pp.72-81
• /
• 1997

황금비는 이집트의 고왕국시대 혹은 더욱 그 이전으로 올라 갈 수가 있으나, 이 비율이 특히 고고학자나 미학자들 사이에서 학문적으로 중시 된 것은 르네상스 시대 이래의 현상이며, 황금비의 이름을 붙이게 된 것은 근세에 들어와서의 일이다. 이 황금비는 가장 조화가 잡힌 비로소 건축, 조각, 회화, 공예 등 조형예술의 분야에서는 다양한 통일의 하나의 원리로서 널리 활용되고 있다. 본고에서는 황금분할의 수학적 내용과 조형예술 분야에 미친 영향과 활용성을 살펴보았고, 그리고 황금비의 수리는 정연하고 신비적이기 때문에, 그것이 항상 아름답고 바람직할 것이라고 하는, 일종의 예측을 역사적으로 행해 왔던 젓임을 알 수 있었다.

• Journal of Nutrition and Health
• /
• v.53 no.3
• /
• pp.288-302
• /
• 2020

Purpose: This study examined the factors related to skipping breakfast in high school girls. Methods: A survey of a total of 581 high school girls residing in Incheon was conducted. The subjects were classified into 2 groups according to the breakfast frequency: "breakfast skipping" group (eating breakfast ≤ 2 times/week, n = 250) and "breakfast eating" group (eating breakfast ≥ 3 times/week, n = 331). This study compared the general characteristics, lifestyles, interest in weight control and beauty care, food habits, the reasons and symptoms of skipping breakfast, as well as the attitude toward breakfast between the 2 groups. Results: The mean age of the subjects was 16.5 years old. Approximately, 33.9%, 33.6%, and 32.5% of the subjects were in first grade, second grade, and third grade, respectively, with no significant difference between the 2 groups. The breakfast skipping group showed a high interest in weight control, and beauty care than the breakfast eating group. The breakfast skipping group consumed more afternoon snacks and late-night snacks, and ate dinner irregularly. Although the breakfast skipping group experienced the negative effects of skipping breakfast, they showed low recognition for the importance or role of breakfast. The most common reason for skipping breakfast was lack of time, which appears to be related to the late wake-up time and the time spent on make-up or beauty-care. Conclusion: Skipping breakfast by high school girls was related to a high interest in beauty care, irregular meals and low attitude toward the importance of breakfast for health and nutrition. Therefore, it is necessary to conduct nutrition education to change the perceptions and attitudes of female adolescents regarding the importance of breakfast by recognizing that breakfast can affect not only balanced nutrition and health, but also healthy physical beauty.