• Korean Journal of Human Ecology
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• v.11 no.3
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• pp.263-271
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• 2002

This research was designed to investigate the preference to textiles for shirts of college students. 105 subjects majored in fashion design were surveyed and SPSS WIN 11.0 program was used for statistical analysis. The results of this study were as follows: 1. Design was the primary factor in purchasing a clothing and college students considered color and texture as important factors for clothing materials. 2. There were significant differences in preference to textiles for winter shirts, especially grade and resident area. 3. College students preferred plain wool two and two check foremost as a textile for spring and fall. 4. Plain cotton poplin was the most preferred material for summer. 5. Twill cotton drill was the most preferred textile for winter. 6. Textiles for winter were thicker and heavier than others and natural fiber were preferred such as cotton and wool. 7. Plain weave was preferred for spring. fall and summer, and twill weave for winter. 8. College students preferred plain texture foremost and blue shaded light color was preferred for spring. fall and summer and brown shaded dark color was for winter.

• Korean Journal of Materials Research
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• v.28 no.1
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• pp.1-5
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• 2018

Gas detection is necessary for various reasons, including the prevention of gas leakages and the creation of necessary environmental conditions. Among the gas detection methods, leakage of gas can be confirmed using materials that undergo color changes that are easily distinguished by the naked eye. Metal nanoparticles (NPs) experience variations in their absorption wavelengths under the localized surface plasmon effect (LSPR) with mechanical stresses, which change the distance between NPs. In this study, we attempted to detect the presence of gas utilizing the LSPR-related color change of a chain of Au NPs. The assembly of Au NPs, arranged in a chain shape, experienced a color change from dark blue to purple with a change in the distance between the NPs by applying a physical force, i.e., compression, stretching, and gas pressure. As the force of compression and the degree of stretching increased, the absorption wavelength shifted from doublet peaks at 650 and 550 nm to a singlet peak at 550 nm. Further, applying gas pressure caused an identical color change. With this result, we propose a method that could be applied to all gases that require detection based on gas pressure.

• Journal of the Korea Fashion and Costume Design Association
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• v.17 no.2
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• pp.45-61
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• 2015

In order to analysis on color difference of natural dyes, I have dyed Hanji, cotton, silk fabric and exposed them to carbon arc light. The results of experiment have been analysed by wavelength of maximum absorption, amounts of dye uptake, color difference, Hunter's value and Munsell's value. Gardenia Jasminoides is monogenetic dye, but it gained darker color by pre-mordanting method used Al mordant agent and greenish yellow color by Fe mordant agent. whereas Curcuma, an Amur cork, and bud of pagoda tree are shown as greenish yellow color, and A barberry root, Betel nut, and Rhubarb are shown as reddish yellow color. these gained khaki colored dyed fabric by Fe mordanting. In addition, Sappan wood showed great result in pre-mordanting. Especially, it gained dark red color by Al pre-mordanting. The pink color was shown by post-mordanting. and Logwood showed great dyeing result in Hanji and cotton better than silk. Specially pre-mordanting was effective. Hanji and cotton showed greenish blue color by Al pre-mordanting, and silk showed brown color.

• Journal of the Korea Fashion and Costume Design Association
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• v.18 no.4
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• pp.77-86
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• 2016

In order to analysis on color difference of natural dyes, I have dyed Hanji, cotton, silk fabric and exposed them to carbon arc light. The results of experiment have been analysed by Munsell's value, and compared the difference of colors which were recognized visually. Gardenia Jasminoides is monogenetic dye, but it gained darker color by pre-mordanting method used aluminum mordant agent and greenish yellow color by ferric mordant agent. whereas Curcuma, an Amur cork, and bud of pagoda tree are shown as greenish yellow color, and A barberry root, Betel nut, and Rhubarb are shown as reddish yellow color. these gained khaki colored dyed fabric by ferric mordanting. In addition, Sappan wood showed great result in pre-mordanting. Especially, it gained dark red color by aluminum pre-mordanting. The pink color was shown by post-mordanting. and Logwood showed great dyeing result in Hanji and cotton better than silk. Specially pre-mordanting was effective. Hanji and cotton showed greenish blue color by aluminum pre-mordanting, and silk showed brown color. However the color, which was recognized visually, differed from colorimeter sometimes. Therefore, such color table might be necessary for the natural dyeing.

• Journal of Photoscience
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• v.4 no.1
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• pp.23-30
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• 1997

Leaf movements in nyctinastic plants are produced by changes in the turgor of extensor and flexor cells, collectively called motor cells, in opposing regions of the leaf movement organ, the pulvinus. In Samanea saman, a tropical tree of the legume family, extensor cells shrink and flexor cells swell to bend the pulvinus and fold the leaf at night, whereas extensor cells swell and flexor cells shrink to straighten the pulvinus and extend the leaf in the daytime. These changes are caused by ion fluxes primarily of potassium and chloride, across the plasma membrane of the motor cells. These ion fluxes are regulated by exogenous light signals and an endogenous biolgical clock. Inward-directed K$^+$ channels are closed in extensor and open in flexor cells in the dark period, while these channels are open in extensor and closed in flexor cells in the light period. Blue light opens the closed K$^+$ channels in extensor and closes the open them in flexor cells during darkness. Illumination of red light followed by darkness induces to open the closed K$^+$ channels in flexor and to close the open K$^+$ channels in extensor cells in the light. The dynamics of K$^+$ channels in motor cells that are controlled by light signals are consistent with the behavior of the pulvini in intact plants. Therefore, these cell types are an attractive model system to elucidate regulations of ion transports and their signal transduction pathways in plants. This review is focused on light-controlled ion movements and regulatory mechanisms involved in phosphoinositide signaling in leaf movements in nyctinastic plants.

• Journal of Korean Society of Water and Wastewater
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• v.31 no.5
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• pp.441-445
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• 2017

This study aimed to investigate growth rate and nutrient consumption of Chlorella vulgaris according to different light irradiation interval. Applied light irradiation intervals were 12 hr, 4 hr, 1 hr, and 1 min. The light source was flexible LED(Blue:Red=1:1), light intensity was 200 PPFD and Light/Dark cycle was 1:1. As a result, growth rate and nutrient removal efficiencies showed no significant differences depending on the light irradiation interval. Considering the reproduction characteristics of applied microalgae cultures of this study, this is thought to be one of the possible reasons of above results. Because Chlorella vulgaris performs an asexual reproduction and it is known that there is no significant relationship between light irradiation interval and growth rate, including nutrient consumption in case of asexual reproduction.

• Journal of Fashion Business
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• v.7 no.3
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• pp.14-23
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• 2003

The purpose of this study is to determine affects of hair colors on physical shapes and images through field survey and experimental research. For the purpose, this researcher surveyed 230 female college students residing in Busan about their dyed hair colors, and selected the subjects for the study. Then the researcher an experimental research on the subjects by suing test stimuli. Results of the study can be described as follows: Experiment of the Optical Illusion of Physical Shapes. For all items measured for the experiment, except four ones, if was found that hair colors provided significant efforts of optical illusion factor analysis, included horizontality, outlines of the body and face, a horizontal line of the shoulder, the length, verticality and a horizontal line of the face. According to hair colors, black made the body look slimmer and the face look apparent. White made the body height look low, the outline of the face look clear and the neck or shoulder look fleshed. Female college students whose hair color was orange looked unclear in the body silhouette, bright in the face and broad in the hip and shoulder. Other students whose hair color was red, attracting the line of vision upward most strongly, looked fleshed in the upper body and broad in the face. Finally, blue made the face look dark.

• Journal of Fashion Business
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• v.4 no.2
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• pp.85-93
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• 2000

Today, China is drawing the attention of the entire world with rapid economic growth that commenced with the opening of its economy. The world recognizes the value of China as a massive market that will eventually lead the global economy in the future. This paper is devoted to basic research on Chinese apparel consumers and is intended to help apparel market developments in China. Its aim is to understand the distinct characteristics of China and to study general apparel designs and purchasing preferences necessary for the development of products that can meet the special needs of Chinese consumers. In addition it identified clothing behaviors to better understand the distinct characteristics of Chinese female college students preferences. The research showed that Chinese female college students preferred achromatic, dark blue, and red colors in decreasing order, and cotton and wool textiles. For style, they preferred designs that accentuated individuality. Also, comfort played an important role in purchasing. Behaviorally, they had strong interests in fashion but valued economic and pragmatic aspects when it came to purchasing, and were not much affected by the desire for identification. From research results, the paper concludes that there is a need for developing comfort-enhancing products for highly individual Chinese female college students, with designs uniquely preferred by them, and valueadded apparel products targeted for upper social levels.

• Journal of the Korean housing association
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• v.14 no.6
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• pp.95-104
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• 2003

The purpose of this study was to find out the actual condition of University student's use of colors and its favored colors in their rooms. This is to proffer basic data for the color planning of University student's rooms in the future. Questionnaires research method was conducted and 343 sample were selected. The analysis used spss program. The result was as follows； 1) At present, Y or Light tone of YR are mostly used for the floors of University student's rooms, white or Very pale tone of Y were used for walls and ceilings, YR or various tones were used for opening parts. 2) The degree of satisfaction of the color environment was 2.87 in average - ″a little dissatisfied″, more than half of the samples needed to change the color environment. 3) The favored color image of the students was regarded as ″warm, neat, tender, bright and light″ 4) In case of the favored colors of the essential parts, floors were Y or Pale tone of YR, walls were Very pale tone of Y, PB, B, RP. And Very pale tones of B, PB, Y, White for ceilings, Pale tones of YR, White, Dark Blue for opening parts were favored.

• Korean Journal of Veterinary Research
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• v.18 no.1
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• pp.9-13
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• 1978

Nitrate poisoning was observed in Holstein calves raising for beef purpose in a dairy-farm of Gyeongbug province. The results observed were summarized as follows: 1. These calves had been fed mainly cornstalk, and a qualitative reaction by "dephenylamine blue test" for nitrate was positive in the serum of the affected calves and in the cornstalk provided. 2. In the clinical signs, the affected calves were suddenly recumbent without premonition and then dyspnea, followed by death. Death also occurred after inappetence, depression, dyspnea, cyanosis of mucous membrane, and terminal anoxic convulsions were observed. 3. In the macroscopical findings, the blood was dark brown (chocolate in color) and more or less poor coagulative. Petechiae of epicardium, severe cloudy swelling of liver, cloudy swelling and hemorrhage of kidney, congestion and hemorrhage of spleen, congestion and edema of lung, and congestion af abomasum and small intestine were observed in these cases. 4. Microscopical changes observed in these cases were peripheral congestion of lobules, centrilobular necrosis and sinusoidal dilatation in liver, hydropic degeneration of hepatic cells, hemorrhage and edema of kidney, necrosis of convoluted-tubular epithelium, and dilatation of Bowman's space and convoluted tubule. There were also congestion and hemorrhage of spleen, hemorrhage and edema of lung, cloudy swelling of myocardium, and congestion and hemorrhage of various organs.