• Journal of Sericultural and Entomological Science
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• no.11
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• pp.51-54
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• 1970

External features of silkworms are not evident during stage of larvae and pupae like in the stage of imagines. In general, therefore, sexing of larvae has been depended on Herold's gland of males or Ishiwata' sexual spots (Anterior sexual spots and posterior sexual spots) of a female 2-3 days after of the 5th age since it is relatively easy to classify in this period. Sometimes. however, we made mistake of sexing since a pair of small spot around the abdomen of 9th abdominal of males and posterior sexual spot of females was found at the same position. This study has been conducted in order to obtain essential points of classifing the above it will be summarized as follows: A. Existence of the males small spots on 9th abdominal segment were varied by races. Through observation races by races the more larvae which had the small spots were found in chinese races than the Japanese, and 57 percent of the Chinese orgin larvae of the small spot were picked among total counted males. B. The small spots were more or less roundly shaped just as posterior sexual spots of females, and these spots were colored slightly even the colors were somewhat different by races. Milky color was seen in the case of the posterior sexual spots. The small spots were observed smaller than the posterior sexual spots. It is difficult classify the sexual spots during stage of mature larvae, but it was easily classified small spots by the naked eye even in the same stage. The small spots were found at the same site of the posterior sexual spots. C. After sexing by based on the small spots and Herold's gland, the sexing through purpae bodies were carried out again to confirm its correctness. Average 5. 2 percent of more opposite sex were found in the latter. This figures supposed to be caused the location of the small spots coincide with the posterior sexual spots. D. The moths, no disorder were found in daily activities and their generative functions depend on the existence of the small spot and thickness of its color. E. It is presumed that existence of the small spots were caused by races, heredity nature, voltinism, moulting, and etc.

• Horticultural Science & Technology
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• v.28 no.4
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• pp.711-714
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• 2010

A new cultivar 'Daemang' ($Hibiscus$ hybrid 'Daemang') originated from the interspecific cross between $Hibiscus$ $sinosyriacus$ 'Seobong' and $Hibiscus$ $syriacus$ 'Namwon' to improve the flower quality in 2001. 'Daemang' was preliminarily selected as 'R-143' in 2003 for its stable flower quality with long red eye spot and named in 2006. The tree habit shows vigorous growth and is upright, so it can be used as a specimen tree or street tree. Characteristic tests such as leaf shape, leaf size, flower characteristics, flowering, and capsule size were conducted from 2004 to 2006. The characteristics succeed after grafting. 'Daemang' had pink color flower with red eye spot. The width of flower is 15.2 cm. Petal length and width are 8.0 cm and 6.4 cm, respectively. Leaves are 9.49 cm long and 8.72 cm wide. After the plant characteristics evaluation for 3 years (2004~2006), it was registered as a variety 'Daemang' in 2008.

• Research in Plant Disease
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• v.22 no.1
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• pp.50-54
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• 2016

In early June 2014, leaf spot symptoms were observed on black chokeberry (Aronia melanocarpa) in Yesan-gun and Geumsan-gun, Chungcheongnam-do in Korea. The initial symptoms on leave surfaces were brown small-circular spots with a yellow halo lesion, and gradually the small spots were fused, all of infected leaves dropped eventually. A fungus were isolated from the initial lesion, and cultured on potato dextrose agar. Colony color on upper surface of plate varied from olive gray to charcoal gray. Size of conidia mostly extend to $19-50{\times}5-9{\mu}m$ in nature and $20-59{\times}8-13{\mu}m$ in culture, with 3-8 transverse septa and usually no longitudinal septum or only 1 longitudinal septum in 1-3 of the transverse compartments, and also have a short or long beak. Pathogenicity was investigated using wounded or unwounded black chokeberry and apple leaves. After 7 days of inoculation, leaf spots were similar to the symptoms naturally occurred in the field. On the basis of mycological characteristics, pathogenicity, and ITS rDNA sequence analysis, this fungus was identified as Alternaria mali. This is the first report of Alternaria leaf spot on black chokeberry caused by A. mali in Korea.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.24 no.1
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• pp.45-55
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• 2010

Recently a number of media facade buildings making beautiful cityscape landmark has been increased in Seoul. However, indiscreet adaptation of media facade cause problems such as light pollution and poor city image. This paper was to investigate luminous characteristics of media facade building. Five representative media facade buildings in Seoul have been selected. The CS-100 and ProMetric-1400 were used to measure the luminance and color temperature of the facades. The measurement points were located at the opposite spot of the building. The results showed that maximum media facade luminance of such buildings exceed Seoul design guideline. Also, color temperature with over 5,500[K] that exceed the design guideline were mostly used in all the facades.

• Proceedings of the Korean Environmental Health Society Conference
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• 2002.04a
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• pp.23-25
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• 2002

This study was conducted to understand characteristics of wastewater which is discharged from small-scale dyehouse located in Seoul downtown area and to Find the appliable treatment method on the spot. The results of this study were summarized as followings. 1. The method which is used at present is mostly flocculation by coagulant or fenton oxidation. But the treatment efficiency of them are not good. 2. The results of fenton oxidation experiment demonstrated that treatment efficiency of COD was limited, which showed the need of the additional process or the improvement of existing treatment method, while the color was reduced considerably in optimal condition. 3. The optimal condition of fenton oxidation are as followings. -Feasible pH was in the 3∼4 regardless of the kinds of iron ions, But the fluctuation of treatment efficiency with the change of pH was small - The mass ratio of H$_2$O/CODcr was used to evaluate the parameter of H$_2$O$_2$ The optimal range of this was in 0.7∼1,3 and it was observed that the ratio got higher as the quality got worse. -For iron ion, FeCl$_2$4H$_2$O turned out to be more effective for removal of color compared with was compared FeSO$_4$7H$_2$Oin. the mass ratio of Fe/H$_2$O$_2$ of 2.3∼2.8 for of FeSO$_4$7H$_2$O and 1.6∼1.8 for FeCl$_2$4H$_2$O resulted in good treatment efficiencies. 4. With adsorption process applied before fenton oxidation in order to treat the high concentration wastewater, the treatment efficiency increased by 61％ in CODcr, 55％ in color. and if the power activated carbon is injected in more than 2500mg/$\ell$, the wastewater can be treated within the effluent quality criteria.

• Journal of Fashion Business
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• v.5 no.1
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• pp.1-15
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• 2001

The purpose on this study is to grasp the clothing habits and problems of the Chinese-Koreans in Yanbian, China through the fact-finding survey about the clothing habits for the Chinese-Koreans in Yanbian, China who have frequent exchanges with the North Korea and have relatively similar home culture preparing for the unification of North and South Korea, also it is to make the basic data for improving their qualities of life. As for the method of study, it centered on the investigation by the questionnaire on the spot and it referred to the data like domestic and abroad literature, field observation, interview and internet, etc. as a reference. Also it centered on the girl college students and the housewives in Yangil City as an object of research. Accordingly, the result of this study is as follows. The Yanbian is the largest Chinese-Koreans group of people in the China. The economic environment in Yanbian is in the middle of the whole China. With the open-economy of China and the contact with the foreign culture, especially with Korea, the 1960s and 1990s coexist in. The Chinese-Koreans in Yangil spend about 1,425 CNY as clothing expenses averages a year, and the estimated value of holding amount of clothing is about 27 suits. They recognize the clothing made in Korea as high-quality and high-price of high-quality articles. They have high interest in the Korean fashion as the younger generation. They prefer to modern, active, refined and mature atmosphere in the clothing atmosphere, but they still do not reach to the level yet in actual. They generally have strong tendency with the preference of black color or dark color because they have small holding amount. The field materials of fiber did not become high-quality articles because they hold in the level of 1960s in Korea. So, the color level of Chinese-Koreans in Yanbian is still low.

• Proceedings of the IEEK Conference
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• 2001.09a
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• pp.735-738
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• 2001

위성영상은 그 특성상 다중대역과 방대한 양의 영상 데이터로 이루어져 있으며, 방대한 양의 데이터에서 필요한 영상정보를 검색하기 위해서는 위성영상 검색에 적용 가능한 다중대역의 화소벡터, 질감 및 이들의 공간분포를 효과적으로 얻어낼 수 있는 속성을 추출하여 활용하는 것이 필요하다. 따라서 본 논문에서는 위성영상 검색에 유용하게 사용할 수 있는 속성으로 다중대역의 화소벡터 값과 질감 정보를 동시에 추출하면서 UV(Color Coherent Vector)의 개념을 적용하여 이들의 공간분포에 관한 정보를 포함한 새로운 속성을 정의하였고, SPOT 위성영상을 이용하여 국부적인 질의 영상의 속성벡터와 광범위한 지역의 위성영상에서 부분영상들의 속성벡터와의 유사성 비교를 통하여 원하는 부분영상을 검색하는 방법으로 그 성능을 평가하였다. 제안된 검색방식은 칼라와 질감 그리고 이들의 공간적인 분포 등을 개별적으로 추출하여 조합하는 과정이 필요 없으며, 특히 위성영상이나 특정 도메인에 종속되지 않기 때문에 다양한 내용기반 영상정보 검색에 효과적으로 이용될 수 있을 것으로 사료된다.

• Proceedings of the KSME Conference
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• 2001.06c
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• pp.451-456
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• 2001

Today, most of data storage devices use digital storage type. In this thesis, a new digital storage media called rainbow disk was introduced. It doesn't use 1-bit digital signal, but 2 or 4 bits digital signal using colors, so it can increase $2{\sim}4$ times more capacity than existing digital media in case of having the same spot size. It has made possible by means of technological advancement of devices and software. The photo quality paper was used for writing data by color inkjet or laser printing, and high resolution scanner was used for reading data. To extract data from image, the converting program was used. This paper shows the concept of rainbow disk as well as its performance and capacity. Axiomatic design was used for evaluating and developing the whole system.

• Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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• 1993.10a
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• pp.32-37
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• 1993

This study investigates the relationship between size, illumination ,and display of show window. The average width, heigh, and depth of show windows in Taegu area were 341.3, 233.4, and 125.8cm, respectively. As light source, halogen lamp was most frequently used, followed by fluorescent lamp and incandescence lamp. In the actual illumination, however, a combined use of more than 2 light sources was common. Further, a local illumination method, e.g., spot light, was generally adopted. The thought of employers and employees in fashion shops about display and illumination was examined aw well. On the whole, the necessity and importance of display were well recognized but the fact that the illumination should be hamonized with other factors such as color and arrangement of goods was underestimated.

• YAKHAK HOEJI
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• v.3 no.1
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• pp.48-50
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• 1957

The micro-assay methods of vanillin have been shown quite few, though several methods have been introduced for determination. A new sensitive micro-determination of vanillin, applying the yellow color reaction of vanillin and anillin, is shown in this paper. The absorption maximum of the yellow coloring matter, 4-Oxy-3-methoxy-henzal aniline, was 435 mu. The one dimensional ascending paper chromatographic method is applyed for isolation of vanillin from the mixed sample. The microdetection of vanillin is studied only in this paper. Vanillin was detected by the yellow spot on paper trip by the coloring reagent of aniline after several hours paper strip chromatographic at the following condition; paper strip ................ 2.5 X 35cm Whatman Filter Paper No.2 developing Solvent ......... petroleum-benzene-methanol n-butanol-water coloring agent ............. aniline. The Rf-value on petroleum benzene and methanol was 0.63 and that on n-butanol and water was 0.90. The minimum detectable amount of vanillin by this method was 10 micrograms. It is recommendable, if interference substances as aromatic aldehydes present, that the application of this aniline reaction and Foline Denis reaction on the same paper chromatogram is appreciable.