• 한국식품영양과학회지
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• 제34권10호
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• pp.1491-1497
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• 2005

본 연구에서는 기능성이 강화된 유색보리 계통을 선발하고 유색보리 계통 육성 및 활용에 기초자료로 사용하기 위해 유색보리 40계통과 대조군인 춘추쌀보리, 겉보리를 $0.1\%$ TFA를 용매로 사용하여 3회 반복 추출 후 감압 농축 후 anthocyanin 함량, 색도 및 항산화효과를 측정하였다. 유색보리의 anthocyanin 색소함량과 색도를 측정한 결과 계통별로 큰 차이를 보였고, 색의 짙음과 옅음으로 그룹 I ,그룹 II, 그룹 III을 나눌 수 있었다. 계통별로 항산화효과에서도 상당한 차이가 있었으나, 제놀함량이 높았던 유색보리 계통이 전자 공여능, SOD-like 활성, lecithin 산화 저해활성능, hydro-gen radical 소거능이 높음을 알 수 있었으며, 여러가지 항산화실험에서 항산화능이 높게 측정되었던 No. 25, 27, 34, 35, 38이 anthocyanin을 함량이 높은 그룹 I에 포함되어 있어 anthocyanin을 함량과 항산화효과는 정의 상관관계로 나타났다. 따라서, 다른 유색 함유 작물처럼 색깔이 진한 유색보리 품종이 개발되어 다양한 생리활성이 입증된다면 새로운 기능성 식품소재로 활용가능성이 높을 것으로 사료된다.

• 한국식품위생안전성학회지
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• 제34권2호
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• pp.178-182
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• 2019

바이오존의 대기압 플라즈마를 사용한 쥐치포(Stephanolepis cirrhifer) 중 미생물안전관리 대상인 B. cereus F4810/72와 S. aureus ATCC 6538의 저감화 정도 및 품질 특성을 관찰하였다. 대기중의 공기를 활용하여 플라즈마 발생을 유도하여 0 분, 1 분, 3 분, 5 분, 10 분 및 20 분 처리하였다. 이후 대상 미생물의 살균력 평가를 위해 표준평판법을 사용하여 로그 감소값을 계산하고 Color difference meter를 사용하여 Hunter "L"(명도), "a"(적색도) 및 "b"(황색도)의 차이를 분석했다. 대기압 플라즈마 3분 처리만으로도 이 두 세균을 1 로그 감소(=90% 감소) 시킬 수 있음이 확인되었다. 아울러 최대 20 분 처리시 쥐치포의 명도, 적색도 및 황색도의 차이는 관찰되지 않았다. 그러나, 본 연구에 사용된 대기압 플라즈마의 기타 수산 건어포와 일반 식품에 대한 산업적 적용을 위해서는 추가적인 목적 미생물의 살균력 연구와 각 품질의 특성을 고려한 품질평가 및 관능평가 등의 추가적인 연구의 확대가 필요하다고 사료된다.

• 농업과학연구
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• 제41권4호
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• pp.385-390
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• 2014

To evaluate the impact of nitrogen fertigation on crop growth and $NO_3$-N concentration in the soil solution, field experiment for cucumber cultivation during spring and fall season were carried out in on-farm located in Byeongcheon-myeon, Chunan-si, Chungcheonnam-do. Supplying nitrogen of 120-150 mg/L by fertigation device into soil per week reached to maximum yields of cucumber fruits. However, cucumber growth did not show any significant difference between nitrogen levels. Nitrogen supply of 400 mg/L, highest N levels, did not affect cucumber growth. Difference between green values of cucumber leaves using RGB scores were closely related with cucumber yields, and therefore, this results suggests that green values of cucumber leaves could be used as a way of determining the application rates of nitrogen for cucumber cultivation period under fertigation system.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2006년도 Proceedings of ISRS 2006 PORSEC Volume I
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• pp.459-462
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• 2006

The diffuse attenuation coefficient for down-welling irradiance ($K_d$) is an important parameter for ocean studies including remote sensing applications. For the vast ocean, ocean color remote sensing is the only possible means to get the fine-scale measurements of $K_d$. To develop a technique of estimating $K_d$ from remotely sensed data, the following underwater optical parameters (absorption coefficient (a), attenuation coefficient (c), scattering coefficient (b), diffuse attenuation coefficient ($K_d$), etc.) have been studied. For this research we conducted the field campaign around the Yellow Sea at $8{\sim}9$ June, 2006. We obtained a set of underwater optical parameter data: down-welling irradiance ($E_d$), up-welling irradiance ($E_u$) and up-welling radiance ($L_u$) using TriOS optical sensors and a, c coefficient using Spectral Absorption and Attenuation Meter (AC-S). We then derived $K_d$ values from $E_d$ for each depth.

• 한방안이비인후피부과학회지
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• 제23권3호
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• pp.165-171
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• 2010

Objective : This clinical research was conducted to test patients with dark circles by external application with Chinensis galla, Lithospermi radix and Salviae miltiorrhizae radix in cosmetics. Methods : We gave prototype cosmetics to 27 patients who volunteered for this clinical research in Kyungwon university from October 14th, 2009 to November 11th. Left inferior palpebra area of patients was treated with Chinensis galla, Lithospermi radix and Salviae miltiorrhizae radix in cosmetics(Experimental group) and right inferior palpebra area of patients was treated with placebo(Control group) for 4weeks. We observed change of darkness of inferior palpebra and subjective satisfaction. Also taking digital image and color meter were used to evaluate the effects of Chinensis galla, Lithospermi radix and Salviae miltiorrhizae radix in cosmetics. Results : Overall evaluation was slightly positive. It is more effective on Right inferior palpebra than on Left inferior palpebra to improve darkness of inferior palpabra in this clinical research. Conclusion : We can guess that cosmetics with Chinensis galla, Lithospermi radix and Salviae miltiorrhizae radix has some therapeutical effects in reducing the symptoms of dark circles.

• 조명전기설비학회논문지
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• 제18권3호
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• pp.55-58
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• 2004

최근 LED 광원에 의한 컬러조명 연출사례는 급속하게 증가하고 있으나, LED에 의한 광색 선택과 관련된 연구는 거의 없는 실정이다. 본 연구는 3원색 LED를 사용한 광색 생성기를 제작하여 복수의 응답자로 하여금 스스로 조각하여 선호하는 컬러를 만들게 하고 이를 디지털 색채색차계로 측정하여 CIE1964색도도표에 기록하였다. 연구결과 일정한 광색 선호도 그룹이 형성되었으며, 이는 향후 LED를 사용하는 조명설계 뿐 만 아니라 디지털로 제어되는 컬러 조명연출 설계시 적용되어 활발하게 응용될 것으로 기대한다.

• 한국식품조리과학회지
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• 제21권4호
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• pp.482-489
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• 2005

Chungmiraejulpyuns made with various levels of Chungmirae leaf powder$(0-7\%)$ was studied to investigate the sensory and mechanical characteristics. Chungmirae juipyun was prepared with 3% Chungmirae leaf powder showed the most favorable tendencies in color, flavor and overall-acceptability. However, Chungmiraejulpyun prepared with $1\%$ Chungmirae leaf powder showed the most excellent tendency in taste, moistness and after-swallowing. In the texture meter measurement for Chungmiraejulpyun, hardness and springiness tended to increase with increasing Chungmirae leaf powder. Adhesiveness and cohesiveness showed significant differences. Texture characteristics of Chungmiraejulpyuns was prepared with $5\%\;and\;7\%$ Chungmirae leaf powder and stored at $20^{\circ}C$ for 60 days showed less change than those of the $0\%$ and $1\%$ groups. Gumminess and chewiness showed a similar tendency as hardness and there were significant differences due to changes in the additional rate of Chungmirae and storage time.

• 한국식생활문화학회지
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• 제30권5호
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• pp.667-673
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• 2015

This study was conducted to investigate the effects of chlorella powder on quality characteristics of maejakgwa (a Korean traditional cookies). Maejakgwa was prepared with different amounts of chlorella powder (in ratios 0, 1, 2, 3, and 4% of flour quantity). The moisture, crude ash, crude protein, and crude lipid contents of used chlorella powder were 2.38, 7.25, 65.95, and 0.95% respectively. The pH of maejakgwa dough decreased significantly as the level of chlorella powder increased; however, density of the batter, spread factor values, and moisture contents of the groups increased significantly with higher level of the chlorella powder. In addition, Hunter's color L, a, and b values decreased significantly with increasing amounts of chlorella powder. In the texture meter test, hardness increased according to increasing concentration of chlorella powder. Finally, maejakgwas containing 1~2% chlorella powder had the highest sensory evaluation. From these results, we suggest that chlorella powder is a good ingredient for increasing consumer acceptability as well as functionality of maejakgwas.

• 동아시아식생활학회지
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• 제25권2호
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• pp.300-308
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• 2015

This study investigated the quality of noodles containing different amounts of Capsosiphon fulvescens powder. Noodles were prepared with C. fulvescens powder at ratios of 0, 1, 2, 3 and 4% based on flour weight. Cooking quality, mechanical texture properties, and viscosity were measured, and a sensory evaluation was performed with the prepared noodles. Gelatinization points of the composite C. fulvescens powder-wheat flours increased. As measured via amylography, viscosity at $95^{\circ}C$, viscosity at $95^{\circ}C$ after 15 minutes, and maximum viscosity values of samples decreased as C. fulvescens powder content increased. As increasing amounts of C. fulvescens powder were added, L, a and b values decreased, whereas color values, weight, and volume of cooked noodles increased, as did turbidity of the soup. In the texture meter test, hardness, cohesiveness, and springiness increased according to increasing concentrations of C. fulvescens powder. However, adhesiveness of noodles decreased by addition of C. fulvescens powder. Sensory evaluation showed that high quality cooked noodles could be produced by 3% inclusion of C. fulvescens powder.

• Applied Science and Convergence Technology
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• 제26권2호
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• pp.21-25
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• 2017

The shape of the reflection spectrum is complex and appears to overlap with several signals, because the surface state is uneven due to the natural oxide film, so that the spectrum becomes a complicated signal shape divided into regions 1 and 2 due to diffuse reflection. On the other hand, it is seen that the reflection spectrum after PEO surface treatment is overlapped with several signals. In addition, the reflectance of the energy band varies from 1.32 to 1.46 eV. Usually, the MgO-type oxide film was observed at an energy band of ~4.2 eV. The thickness of the oxide film was increased as the DC voltage was increased by the thin film thickness meter (QuaNix; 7500M) after Plasma Electrolytic Oxidation (; PEO) surface treatment. This is because the higher the DC voltage, the easier the binding of the $OH^-$ ions in the solution solution and the $Mg^+$ ions of the magnesium alloy. An important part of the bonding of ordinary ions is the energy source (plasma) which can promote bonding. However, when a certain threshold voltage or more is applied, the material is adversely affected. The oxide film of the surface may be destroyed without increasing the thickness of the oxide film, that is, whitening of the material may occur.