• Proceedings of the Korean Society of Crop Science Conference
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• 2004.04a
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• pp.140-141
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• 2004

• 대한예방의학회:학술대회논문집
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• 1998.10b
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• pp.225-226
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• 1998

• The Journal of Korean Philosophical History
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• no.53
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• pp.35-61
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• 2017

The formation process of Dasan(茶山)'s Yi Xue(易學) in Xinghuxuepai(星湖學派) was examined. Dasan(茶山)'s Yi Xue(易學) succeeded to the methods of Huti (互體) and Yaobian(爻變) from Seong-ho(星湖) and Ha-bin(河濱), and Dasan(茶山) thought that he couldn't cover Zhouyi("周易") just with this one method. So he suggested the four methods called Yilisifa(易理四法), and supplemented it with 18 methods through Duyiyaozhi(?讀易要旨?). Accordingly, the process of how Dasan(茶山)'s Yi Xue(易學) was established was examined one by one. Dasan(茶山) succeeded to the method of Huti(互體) from Seong-ho Lee Ik(星湖李瀷), the leading master of Xinghuxuepai(星湖學派). Nevertheless, Dasan(茶山) argued that the method of Huti(互體) had been from Zhu Xi(朱子). However, this argument of Dasan(茶山)'s seems to have resulted from Zhengzu(正祖)'s academic research policy. As a way to interpret Zhouyi(?周易?), Dasan(茶山) succeeded to the method of Yaobian(爻變) from Ha-bin(河濱). However, Dasan(茶山) argued that Yaobian(爻變)was Zhu Xi(朱子)'s intention. He had no choice but this because of Zhengzu(正祖)'s academic research policy. Dasan(茶山) succeeded to the method of Huti(互體) from Seong-ho(星湖) and Yaobian(爻變) from Ha-bin(河濱), but Dasan(茶山) proposed the four key methods called Yilisifa(易理四法). Many researchers have argued that, as for Dasan(茶山)'s modern viewpoint, Dasan(茶山) developed Yi Xue(易學) in a similar way as Xihe Mauqiling(西河 毛奇齡). However, this viewpoint cannot be judged to have been similar as it was expressed when Dasan(茶山) himself criticized Xihe(西河)'s Jingxueguan(經學觀).

• Applied Biological Chemistry
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• v.6
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• pp.61-77
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• 1965

In this experiment, Akiochi was studied especially on plant growth on the degraded soils. Besides, such soils were carefully examined on its character and plant body was analysed to know the difference in various mineral contents. For this purpose, paddy cultivation was done with the variety Pal Dal at Suwon, Sosa and Pyungtak. Three plots were chosen at each location as the normal and 2 levels of akiochi, a-the stronger and b-the weaker. Harvests from these 9 plots were measured agronomically and also chemically analysised. As for soil, after an observation on vertical section of soil, samples from each layer were also studied both physically and chemically. The results are summarized as follows. 1. Outer changes in rice plant and changes in yield components. 1) Rice from Akiochi soil showed remarkably shortened culm length, head length, protrusoion length, blade length of boot leaf, and coleoptile length, compared with that from the normal paddy field. 2) There was a tendency for Akiochi rice to have more heads per plant. 3) Akiochi rice showed poorer intercalary growth of upper 3 internodes. The ratio of this upper internode length to total culm length was also smaller in this case. Consquently the ratio of lower internode length to total culm length became larger than that from normal peddy field. 4) Akiochi rice showed significantly fewer first spikelets and attached grains of head at main stem. 5) Maturing rate of both this main seem of whole plant body was remarkably lower than that of normal rice. 6) Akiochi rice showed lower head weight of main stem, total hulled rice weight, total grain yield, 1000-grain weight, straw weight and straw-hulled rice ratio. 2. Physical and chemical study on soil. 1) Akiochi soil showed thinner upper layer and total thickness of upper and lower parts was smaller than that of normal. 2) Akiochi soil of Suwon was mainly composed of sand, while that of Sosa and Pyungtak was composed of heavy clay. 3) Chemical analysis indicated that content of $SiO_2$ in upper layer is always lower than that of normal. But no other common tendencies were found. 4) This analysis further lillustrates lower content of Fe, & Mn at Suwon ; of Mn at Sosa and higher content of Fe at Sosa and organic matters at Pyungtak. 5) Some differences in the content of N in each plot could be marked though irregular. 3. Chemical Composition of plant body. 1) Chemical analysis on grain, boot leaf and straw did not suggest any remarkable differences between normal and Akiochi rice, except that the latter contains less Si in boot leaf and less Mn in straw. 2) Contents of each chemical element were measured in grain and straw to calculate the percentage of element content in grain to that of whole plant body including both grain and straw. Here, Akiochi rice always showed lower value in N, K and Mn. 4. Relationship between chemical composition of plant body and that of soil. Akiochi soil at Sosa marked lower content of Mn. This caused another lower content of this element in grain, boot leaf and straw. But except that, no remarkable relationship could be found in this study.

• Korean Journal of Plant Resources
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• v.9 no.2
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• pp.189-195
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• 1996

In order to obtain basic information for breeding varieties of onion which is suitable at the southern part of Korea. 222 early mature variety and 219 late mature variety were grown from sep.1993 to jun. 1994 at experimental field of Muan-Gun area, and yield components and yield of onion plant ware observed. Early mature onion cv. Changnyeongchunghwan-gkeukjoseng and Keumjungjoseng showed higher yield than other early mature variety used in the experiment. It showed relatively long plant height and leaf sheath length and, height of bulb and diameter of bulb and high weight of bulb. Late mature onion cv. Chunjudaego showed higher yield than other late mature variety used in the experiment. It showed relatively long plant height and leaf sheath length and diameter of bulb, and high weight of bulb. Therefore, it was concluded that Changnyeongchunghwangkeukjoseng,Keumjungjoseng and Chunjudaego were the most suitable early and late mature varieties with high yield at the southern part of Korea.

• Radiation Oncology Journal
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• v.8 no.1
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• pp.17-27
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• 1990

The effects of both hyperthermia alone and X-ray irradiation combined with hyperthermia on rat testis have been investigated. The histological changes were observed on 15 and 30 days after treatment. There was no histological change of rat testis by hyperthermia alone. The earliest change by X-ray irradiation was the degeneration of the spermatogonia of the seminiferous tubule, which was appeared in 2 Gy group. Necrosis of the spermatogonia was severe in 6 Gy group and complete atrophy was developed in 8 Gy group. With increased dose of radiation, the degree of changes of tubules was increased. In combined group of X-ray irradiation and hyperthermia, the histological change of the seminiferous tubule was more severe than X-ray alone group. Necrosis and atrophy of the spermatogonia were appeared in 2 Gy and complete atrophy of spermatogonia was seen in 6 Gy group. Thermal enhancement ratio (calculated at the complete atrophy of the spermatogonia) was 1.3 in this experiment. There was no difference in observation time inverval between 15 and 30 days after each treatment in all groups.

• Korean Journal of Soil Science and Fertilizer
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• v.7 no.3
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• pp.147-154
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• 1974

Relationship among grain yield (Y) nitrogen efficiency (E) and nitrogen uptake amount (N) was investigated using the data from Korea and Japan in order to find out the way of increase nitrogen efficiency. The relationship between E and N could be grouped in various classes. In each class the equation. Y=EN=(b-aN)N, is valid where b is a theoretical maximum of E and a is the E/N at theoretial maximum yield. Present technique for high yield in the rice research seems to achieve 56.8 of nitrogen efficiency with 15.5kg of nitrogen uptake. Future target appears to be 63 of efficiency with 17kg of nitrogen uptake at which some farmers in Japan might reach already. It seems that the increase of nitrogen uptake for high yield is restricted without increase of nitrogen efficiency. The increase of efficiency and uptake amount of soil nitrogen seems essential to increase total nitrogen efficiency.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.15
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• pp.61-67
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• 1974

Field experiment was conducted to disclose some effects of leaf defoliation in heading time and the application of different combinations of nitrogen, phosphorus and potassium on the maturity and yield of paddy rice. The results obtained are as follows; 1.All were components considered were increased as the amounts of nitrogen, phospgorus and potassium applied were increased, except the maturity rate had the tendancy to be decreased with the increase of the above fertilizer applications. 2.As the rate of cutting leaves went higher, the weight of rough rice, the maturity rate and the weight of 1, 000 kernels of perferct brown rice were decreased, and there were significant differences among the treatments of leaf blade cutting. 3. The contribution of each leaf to yield through the maturity, number of spikelets per panicle and 1, 000 kernel weight were 61.87-66.18-65.61% respectively for the flag leaf, 17.50-20.65-23.41%for the 2nd leaf, 12-71-12.73-10.11%for the 3rd lead and 7.93-6.44-0.87%for the 4th leaf respectively. This simply indicared that the effects of the leaves to the yield were decreased as their position went down. This tendency was specially emphasized in the case of the weight of 1, 000 kernels of perfect brown rice.

• Journal of the Korean Society of Costume
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• v.64 no.8
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• pp.164-178
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• 2014

Historically, white clothes have been passed down through the generations as the symbol of the Korean people. This study was motivated after coming across a text written by Lee Ok(李鈺, 1760~1815), a writer during the Joseon dynasty. Lee wrote that "Koreans mostly wear blue clothes." This raised questions regarding the wearing practice of the white clothes at the time of King Jeongjo's reign(1776~1800), and led to further studies on the matter. The results show that discussions were held about changing the color of the government official's changui(氅衣) from white to blue. An order was also given replacing white boots with black boots. Therefore, it is supposed that blue clothes phenomenon was influenced from the blue changui policy. However, this change was temporary as later generations wore preferred white with the exception being women's skirts. Women preferred blue skirts to white skirts for a long period. Detailed analysis of the white changui showed that people were burdened by high dyeing costs, and this was a big factor as studies indicated a large gap in wealth disparity. In a society that put funeral and ancestral rites as one of its priorities, the white clothes could have been favored due to its multi-functional use. Also, the noblemen who set importance on Gija(箕子) Joseon connected white clothes custom to Gija. This connotes that the reason for wearing white clothes differed depending on the class. And as white clothes were widely worn, people developed different ways of wearing the clothes for aesthetic purposes.

• Journal of Korean Philosophical Society
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• v.144
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• pp.113-140
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• 2017

In this work we start from the thesis that Schiller's Aesthetic Letters contains two different doctrines of aesthetic education. When Schiller first raised the need of aesthetic education in his 1793 letters to Friedrich Christian von Augustenburg, he wanted to show that the taste for beauty contributes to morality and emphasized that man could reach pure reason only by way of beauty. When he revised the original letters and published them in 1795, he added some important parts concerning beauty as the condition and idea of humanity and the following arguments about 'aesthetic condition.' These added parts emphasize the harmony of reason and sensibility in beauty and the restoration of totality in 'aesthetic condition.' We examine the meaning and implications of 'aesthetic condition' in comparison with Schiller's 1793 doctrine of 'three-phase development of humanity,' and explain the background of this thought and also how it developed before and after Aesthetic Letters.