• Journal of the Korean Society of Marine Environment & Safety
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• v.28 no.7
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• pp.1129-1139
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• 2022

Collision accidents happen frequently. The majority of ships involved in collisions in the coastal areas of Korea are middle and small size ships. The proportion of collision accidents is only 9% of all types of marine accidents; however, the number of casualties resulting from collisions is 34.4% of all human life damages. Generally, as reported by the people involved in these collisions, the navigation lights of the opponent ships were poor and invisible when the accident happened even though the weather and visibility were good. Furthermore, there are many insistences for poor navigation light conditions of the opponent ship in the bay or harbor. Therefore, it is necessary to analyze the present conditions and safety of navigation lights. Therefore, in this study, we examined the rules and books of navigation lights and compared it to that of other transportation systems, such as aircraft, trains, and road vehicles. Furthermore, we analyzed the current marine traf ic circumstances and ship collision accidents that happened in the past 5 years. Additionally, a questionnaire was prepared to gather the opinion of ship experts and secure the objectivity for improvement methods of navigation lights. Finally, methods to improve the navigation lights on ships were devised.

• Smart Media Journal
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• v.12 no.9
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• pp.152-158
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• 2023

This study analyzed the consciousness, unconsciousness, and individuation process of 'Cheongmyeong', the protagonist presented in the webtoon "Return of the Blossoming Blade", based on Jung's theory of individuation. The subject of the research was the webtoon "Return of the Blossoming Blade", which has formed a readership across various genders and age groups, based on a successful web novel. The individuation process of the protagonist of "Return of the Blossoming Blade", analyzed using Jung's theory, is as follows: Firstly, the protagonist's ego originated from the shadow derived from the unconscious. Secondly, the protagonist's persona is social and positive in reality, but the personal persona manifested as an unrevealed shadow. Thirdly, the protagonist's anima/animus connects the profound inner consciousness with reality, maintaining a complementary relationship with the persona. Fourthly, the protagonist's Self symbolizes the collective ideal human and the essence of the volcano. The protagonist was shown to achieve individuation through a continuous repetitive process of integrating consciousness and unconsciousness, and through the compensatory process.

• Archives of design research
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• v.16 no.3
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• pp.231-240
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• 2003

As all other cultures do, in the background of color of costume, view of life or spirit are contained in the nature or environment that the people lived in are applied. Marring is the ceremony to be socially recognized that both of sexes are unified, assist ancestor and bear future generation. Meaning and symbolism of color are appeared in beauty and organic composition of Lee dynasty. This paper tried to dear up five colors are dean, beautiful and philosophical colors rather than awkward composition of colors through surveying character of five colors appeared in Korean traditional wedding dress that has been succeeded in present age. This paper compared Korean traditional wedding dress and "Dan-chung" of Korea, Japan and China and surveyed theoretical background of Korean traditional color to find character of color appeared in Korean traditional wedding dress. As a result, Korean traditional color is meaningful symbolic color, its origin starts in yin-yang and the live elements of the Oriental cosmogony and it is related with Taoism of Confucianism and color of "Dan-chung." Five colors of yin-yang means everything under the sun and il is the color achieving beauty of balance due to correlation when it is linked to over one color. Further, it contains nature worship and human dignity, prays happiness and gives the significance of "Buksa", meaning of expelling an evil spirit. Formative beauty praying that all creatures are harmonized while human is happy and escapes from uncertainty is the beauty pursuing mental satisfaction as well as visual satisfaction. In future, the creational and characteristic designs that can appeal to world are required through right understanding and study of the beauty of traditional culture beauty of traditional culture

• Korean Journal of Remote Sensing
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• v.36 no.3
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• pp.411-423
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• 2020

Localized solar irradiance is normally derived from atmospheric transmission influenced by atmospheric composition and conditions of the target area. Specially, for the area with complex coastal lines such as Taean gun, the accurate estimation of solar irradiance requires for in depth analysis of atmospheric transmission characteristics based on the localized vertical profiles of the key atmospheric parameters. Using MODTRAN (MODerate resolution atmospheric TRANsmission) 6, we report a computational study on clear day atmospheric transmission and direct solar irradiance estimation of Taean gun using the data collected from 3 ground stations and radiosonde measurement over 93 clear days in 2018. The MODTRAN estimated direct solar irradiance is compared with the measurement. The results show that the normalized residual mean (NRM) is 0.28 for the temperature based MODTRAN atmospheric model and 0.32 for the pressure based MODTRAN atmospheric model. These values are larger than 0.1~0.2 of the other study and we understand that such difference represents the local atmospheric characteristics of Taean gun. The results also show that NRM tends to increase noticeably in summer as the temperature increases. Such findings from this study can be very useful for estimation and prediction of the atmospheric condition of the local area with complex coastal lines.

• Korean Journal of Soil Science and Fertilizer
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• v.22 no.3
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• pp.228-233
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• 1989

Successive changes of transpiration by the tobacco plant during the growing season with pot trial treated with 30cm and 100cm ground water tables were compared with change of soil moisture content in rhizospere of field under natural rainfall conditions. Transpiration from the 41st to the 60th day after transplanting was the highest showing about 50% of total transpiration of whole cultivation period. As the result, soil moisture condition in rhizospere of field was kept insufficiently during the above period. Transpiration by the plant was so remarkably affected by the meteorological environment that the transpiration on rain-cloudy day was one third of that on clear day at middle stage of the growth. Maximum transpiration in a clear day was obtained from 14:00 to 16:00 at the 58th day after transplanting.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.33 no.5
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• pp.415-426
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• 2015

Solar radiation under a clear sky is a important factor in the process by which meteorological satellite images are converted into solar radiation maps, and the quality of estimations depends on the accuracy of clear sky models. Therefore, it is important to select models appropriate to the purpose of the study and the study area. In this instance, complex models were applied using Linke turbidity, including ESRA, Dumortier, and MODTRAN, in addition to simple models such as Bourges and PdBV, which consider only the solar elevation angles. The presence of cloud was identified using the Communication, Ocean, and Meteorological Satellite and the Meteorological imager (COMS MI), and reference data were then selected. In order to calculate the accuracy of the clear sky models, the concepts of RMSE and MBE were applied. The results show that Bourges and PdBV produced low RMSE values, while PdBV had relatively steady RMSE values. Also, simple models tend to underestimate global solar irradiation during spring and early summer. Conversely, in the winter season, complex methods often overestimate irradiation. In future work, the cause of overestimation and other factors will be analyzed and the clear sky models will be adjusted in order to make them suitable for the Korean Peninsula.

• Journal of the Korean Geographical Society
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• v.29 no.1
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• pp.3-15
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• 1994

The purpose of this study is to investigate the origin of traditional folkhouses of Japan in connection with those of Korea. Japanese folkhouses have received much influence from the Korean Peninsular, mainland China, northern Asia and Southeast Asia. The writer believes that the main stream of folkhouse culture origineted in the Korean Peninsular and flowed into the Japanese Islands. There ara many striking similarities in the folkhouses of Korea and Japan. Firstly, double-row room houses are distributed in the northeastern part of the Korean Penininsular and all parts of the Japanese Islands, and they are classified into the five-room type and four-room type. These types are very similar in both nations in the aspects of and floorplan and distributing patterns. Because floorplan may be used as an indicator of culture regions and cultural diffusion both, nations are believed to be closely related in the interchange of cultures in ancient times. Secondly, stables are allocated to the main house, and they are called "magu" in common "Magu" means horse stable, but there are no horses in it. In ancient times, however, many horses were kept in "magu" in both countries. Thirdly, there are much similarities in the function and structure of the folkhouses of both countries. The characteristics of folkhouses of Japan could be explained as the result of cultural diffusion from the Korean Peninsular.on from the Korean Peninsular.

• Journal of Bio-Environment Control
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• v.3 no.1
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• pp.58-65
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• 1994

It is necessary to effective temperature and humidity management for normal growth of crops in protected cultivation during the summer season. Because the highest temperature of vinyl house inhibit normal growth of crop and decrease of crop production or marketability in summer season. Finally, the vinyl house was impossible some crop cultivation in summer season. This study was conducted to investigate effective and economic method for temperature drop in protected cultivation during the summer season. 1. In medium size vinyl house(5$\times$13$\times$3m), the effect of temperature drop appeared the highest in treatment of shading with aluminium thermal curtain＋fog system＋ventilation with fan. The effect of temperature drop was about 1$0^{\circ}C$ lower than outer air temperature and about 4$^{\circ}C$ lower than outer soil temperature. 2. The effect of temperature drop according to shading with aluminium thermal curtain＋fog system＋ventilation with fan during the highest temperature of summer season Jul., 20 to Aug., 21 was appeared about 8$^{\circ}C$ lower than outdoor above ground(1.2m) and about 7$^{\circ}C$ lower than outdoor surface ground. 3. The changes of solar radiation during a day according to shading with aluminium thermal curtain＋ventilation with fan and shading with black curtain＋ventilation with fan treatments was appeared respectively about 29.3%, 32.5% of outdoor solar radiation a fine day and respectively about 27.4%, 31.8% of outdoor solar radiation a cloudy day.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.41 no.3
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• pp.308-317
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• 1996

These experiments were conducted to investigate variation of physical characteristics of the culm related to lodging resistance by nitrogen levels under direct seeding on flooded paddy surface. The number of seedling per m$^2$ were from 103 to 110 plants, and seedling ratios were ranged from 66.7% to 71.2%. The lodging occurrence were increased in order to the nitrogen levels 15 kg, 10 kg, 5 kg /10a, and the lodging resistant varieties ; Dongjinbyeo and Cheongmyungbyeo showed less values of field lodging than those of lodging susceptible varieties ; Daecheongbyeo, Palgongbyeo and H waseongbyeo. The lodging resistance was decreased in semidwarf varieties compare with long culm varieties, but Dongjinbyeo, long culm variety has lodging resistance. The occurrence of lodging decreased with lower values in top moment, but with higher values in the breaking moment with leaf sheath. The root dry weight positively correlated with weight of culm base, but modulus of section was negatively correlated with bending curvature, respectively.

• Korean Journal of Plant Resources
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• v.10 no.4
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• pp.386-391
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• 1997

A study was carried out to investigate the variation of heading date and related yield components at Honam Agricultural Experiment Station in Korea. The treatments were consisted of five transplanting time: from May 5 to July 5 at 15-day intervals, and six cultivars: two early-maturing, two mid-maturing and two late-maturing cultivars. The results showed that variation of heading at different transplanting time was not significant at transplanting after June 5 in early-maturing cultivars, and days of heading from seeding for all tested cultivars were shorter in later transplanting times. The yield components such as numher of spikelcts, percentage of ripened grain and 1.000 grain weight were found to he great on May 5 in early-maturing cultivars and on June 5 in mid-and late-maturing cultivars. Yield was maximized at transplanting of May 20 in early maturing and on June 5 in mid-and late-maturing cultivars. When transplanting time was late, the yield difference hetween early maturing cultivars and late nldtunng ones showed 44 to 77kg/10a in the transplanting of June 20, and 26~30kg/10a in the transplanting of July 5 indicating that the late-maturing cultivars take more advantage than early-maturing ones.