• Journal of Fisheries and Marine Sciences Education
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• v.4 no.1
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• pp.75-87
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• 1992

Cultivation of competent manpower is recognized as one of the important factors in the development of fisheries as well as of other industries. For reference to the development of education of fisheries high schools in the Republic of Korea, the author carried out a study on the education in Japan. The reason is why the education on fisheries had been initiated in Japan and her educational system has played the role of a model for neighboring countries. Even though the education on fisheries tends to shrink a little in recent years by diffusing the unwilling tendency to engage in 3D (dirty, difficult and dangerous) jobs, there are fifty-one high schools educating fisheries in Japan. Thirty-eight of them are specialized fisheries high schools and the others are comprehensive high schools to put common course and fisheries course together. In the first step of study, the goal of education on fisheries, organization of department and arrangement of curriculum are analysed. 1. In the newly arranged curriculum which will come into effect from 1994, the goal of education on fisheries is set up as "By educating fundamental knowledge and technology on the production and circulation in the field of fisheries, have students understand the significance and role of fisheries, and so cultivate ability and active attitude to the development of fisheries". The goal means that the circulation of fishery products are regarded as important as the production itself, and active attitude to the development of fisheries is also stressed, different from the present goal. 2. Standard departments directed by the Government are set up as five-Departments of Marine Fishing, of Fisheries Engineering, of Information Communication, of Fish Culture, of Sea Foods. But they are actually organized and named by the founders of schools-local government. Then there are many unique-named departments and the management of schools are somewhat flexible according to the situation of local district. 3. Special subjects are revised to twenty-four in the new curriculum from twenty-two in the present curriculum. Among them the contents are widely revised in the subjects such as Introduction to Fisheries, Fisheries Engineering, Communication Engineering, Communication Technology, Fish Culture. On the other hand, five subjects such as Information Treatment on Fisheries, Information Technology on Fisheries, Subjective Study, Fisheries Economics, Circulation of Sea Foods are newly set up to meet the changing phase of the time.

• Journal of the Korean Society of Food Science and Nutrition
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• v.41 no.4
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• pp.526-532
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• 2012

This study was conducted to investigate chemical properties of wild $Lactuca$ $indica$ (WL) and cultivated $Lactuca$ $indica$ (CL). The proximate composition, reducing sugar, free amino acids, organic acid, vitamin C, minerals, chlorophyll, and crude saponin were analyzed. WL and CL contained high levels of carbohydrate. The leaves and roots of CL contained higher levels of free amino acid than those of WL. Especially, the proline content of CL leaf was 12 times higher than that of WL leaf, and the arginine content of CL root was 100 times higher than that of WL root. The major organic acid and mineral of $Lactuca$ $indica$ were tartaric acid and potassium, respectively. CL showed significantly higher value of reducing sugar than WL. The vitamin C content of the samples ranged from 0.4 to 24.1 mg%, and CL leaf was the highest amount of vitamin C among the samples. CL leaf had a higher amount of chlorophyll than WL leaf, but WL root contained a higher amount of crude saponin than CL root. As in this study, CL showed better nutritional properties than WL, and these results will provide fundamental data in order to activate the cultivation of wild plants.

• The Journal of Korean Philosophical History
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• no.42
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• pp.233-258
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• 2014

This article investigates the concept of the xing(性) used by Hu Hong. Hu Hong's philosophical system considered to top priority for xing is called xingbunlun(性本論), and he suggested the characteristics of xing as follows. First, Hu Hong regarded xing as the fundamental of whole world and related to the specific individual things, so he constructed the concept of xing in the perspective of ontology. Namely while xing is ti(體) the root of all the world, it is the realization of the uniqueness of the individual things. Also he considered xing which of the ontological aspect developed various psychological aspect contained xin (心), qing(情), yu(欲), etc. Seond, As Hu Hong regulated that wei fa(未發) is xing and yi fa(已發) is xin, he defined the ideal relation between xing and xin as xingtixinyong(性體心用). And he considered that the sage and the ordinary peoples are equal in the xing's aspect of wei fa, but they are not equal in ability of the xin in the aspect of wei fa. Hu Hong thought that the only sage realized the ideal relation between xing and xin in this world, because he keep his mind silent. So Hu Hong suggested the possibility of moral cultivation to the ordinary peoples, expressing that human nature realized the function of the mind(成性), in order that they realized ideal relation by following ren(仁). Third, unlike the traditional notion, Hu Hong understood the meaning of xing in the aspect of ontology. He interpreted the shan(善) of xingshan(性善) as the meaning of exclamation, which implied that "the innate goodness of human nature(性善)" meant "Human nature is good." Because Hu Hong thought that the meaning of xing transcended the relative concept of good and evil, and accepted the whole world affirmatively. In the opinion of Hu Hong, as the concept of xing had two ways of intentionality; likes and dislikes(好惡), things formed relationship with other in this world. Then the concept of good and evil of the ethical value judgement occurred.

• Weed & Turfgrass Science
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• v.5 no.1
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• pp.17-22
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• 2016

Yellow tuft symptoms of a dense cluster on zoysiagrass (Zoysia japonica Steud.) occurred extensively at cultivated fields of zoysiagrass sods in Jangsung. The dense cluster of zoysiagrass showed significant morphological changes such as the tufts of shortening of internodes. The disease symptom was spread on a large scale throughout stolon nodes with multiple short leaves and it thrives in broom-like shaped clusters, exhibiting light green or yellow color on their leaves. The dense cluster of zoysiagrass had approximately 5.8 times more leaves on each node of its stolon then healthy zoysiagrass. Also, these zoysiagrass had poorly developed root and stolon caused by the tufts of a dense cluster of shoots. The dense cluster of zoysiagrass were collected for the putative causal agent incubation and upon close observation, it was found that the sporangia took the shape of a lemon, each sporangium was pointed at the end of its axis and was measured to be $60{\sim}96{\times}42{\sim}51{\mu}m$. These findings were analogous to the mycological characteristics of sporangia formed by the pathogen Sclerophthora macrospora. The symptoms of yellow tuft were prevalent in spring and autumn. Therefore, this study aims to present fundamental data in relation to yellow tuft on zoysiagrass in Korea.

• Korean Journal of Weed Science
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• v.32 no.2
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• pp.115-120
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• 2012

Weed control is of fundamental importance when planting cereal crops, particularly during the establishment phase. Weeds compete for nutrients, water and light, and can severely threaten the survival and early growth of newly planted crops. Field experiment was conducted to evaluate the effect of ethanol treatment on the weed control efficacy in cereal crops in protected vinylhouse. Five treatments like water, 25 L, 50 L, 75 L, and 100 L per $m^{-2}$ at 2% ethanol were applied and covered with vinyl on 10 days before foxtail millet seeding. After that, foxtail millet seeds were sown on June 20 at $60{\times}10cm$ planting distance and weed control efficacy was recorded at 30, and 50 days after seeding based on the dry weight. Soil oxidation-reduction potential was recorded -200~-400 mV after treatment 2 days. Weed control efficacy of at 75 L, and 100 L per $m^{-2}$ was observed 92%, 84% in 2% ETOH, respectively. Yields of foxtail millet at 75 L, and 100 L per $m^{-2}$ were 1,570 kg $ha^{-1}$, 1,230 kg $ha^{-1}$, respectively.

• The Journal of Korean Philosophical History
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• no.29
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• pp.125-152
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• 2010

The main purpose of this dissertation is a introductive proposal to reconstruct confucian moral principles. The most classical question in moral principles is : what is the good. In order to reconstruct confucian moral principles, this dissertation begin with question of what is the good in confucian moral principles. Confucianism believe in reality of the human good mind and good nature. Confucian the human good mind and good nature is comprised of benevolence, righteousness, propriety and wisdom. Benevolence, righteousness, propriety and wisdom(四德) is the origin of morality. Confucian's moral principles of human relationship is none other than conscientiousness and altruism. Conscientiousness is a principle of self-cultivation and self-revelation. As to altruism, confucious said, "the man of perfect virtue, wishing to be established himself", or "do not impose on others what you do not desire others to impose upon you." Altruism is rectified as a principle of reciprocity methodology of the making of whole kingdom peaceful in The Great Learning. Confucian golden rule(conscientiousness and altruism is equal to Kantian categorical imperative in The Fundamental principles of Metaphysics of Ethics. : Act only on that maxim through which you can at the same time will that it should become a universal law ... etc. Kant's three principles of moral philosophy(Categorical Imperatives) imply that the idea of universality, freedom, and the kingdom of ends. We contrast confucian moral principles with Kant's three principles of Categorical Imperatives. In conclusion, confucian moral principles implicate Kant's principle of universalizability and impartiality.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.29 no.3
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• pp.209-217
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• 1984

This study was conducted to establish fundamental of rice cultivation system in the southern warm region of Korea by investigation of variation of yield component factor and yield under the different transplanting dates which was at interval of 15 days, from May 20 to July 5. In the variation of leaf age, the leaf of July 5 transplanting was less 1.1 leaves than that of May 20 transplanting in Seokwang. However in Dongjin, the leaf of May 20 transplanting was more 1.7 leaves than that of July 5. According to transplanting date delay, the shorten ratio of flag leaf was showed an increasing tendency. Period from transplanting to heading under the different transplanting in Seokwang, required about 75 days in May 20 transplanting and 68 days in June 5, 67 days in June 20, but 71 days in July 5, it was a cause of decrease in grain yield, because of increase in the period from transplanting to heading date. The maximum yield under the different transplanting gathered on May 20 transplanting in Seokwang variety, and on June 20 transplanting in Dongjin variety, and then, on the accumulated temperature 1017$\pm$24$^{\circ}C$ in Seokwang, 952$\pm$15$^{\circ}C$ in Dongjin, from 10 days before heading to 30 days after heading, it was appeared the high yield. It was showed linearly negative correlation between the No. of panicles per unit area and transplanting date (Seokwang; r=-0.6768$^{**}$, Dongjin: r=-0.5182$^{**}$). There were more differentiation of spikelets per panicle in the late transplanting in Seokwang, however in Dongjin, it was decreased in differentiation of spikelets per panicle in the early and the late transplanting.ing.

• Journal of Bio-Environment Control
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• v.24 no.3
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• pp.210-216
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• 2015

Purpose of this study was a development of an image processing algorithm to recognize paprika and acquire it's 3D coordinates from stereo images to precisely control an end-effector of a paprika auto harvester. First, H and S threshold was set using HSI histogram analyze for extracting ROI(region of interest) from raw paprika cultivation images. Next, fundamental matrix of a stereo camera system was calculated to process matching between extracted ROI of corresponding images. Epipolar lines were acquired using F matrix, and $11{\times}11$ mask was used to compare pixels on the line. Distance between extracted corresponding points were calibrated using 3D coordinates of a calibration board. Non linear regression analyze was used to prove relation between each pixel disparity of corresponding points and depth(Z). Finally, the program could calculate horizontal(X), vertical(Y) directional coordinates using stereo camera's geometry. Horizontal directional coordinate's average error was 5.3mm, vertical was 18.8mm, depth was 5.4mm. Most of the error was occurred at 400~450mm of depth and distorted regions of image.

• Korean Journal of Soil Science and Fertilizer
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• v.29 no.4
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• pp.353-359
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• 1996

Micro plot study was conducted to elucidate the behavior of nitrogen derived from animal manure in soil and to obtain the fundamental information on animal waste management. Soils used in this experiment were sandy loam and loam. Soil water samplers (1m length ceramic cup tube) were installed at 90cm depth of soil to collect the percolate. Fresh and fermented pig manure were applied at the rate of 0, 50, 100 ton per ha. Maize was grown to evaluate the effect of crop on nitrogen behavior through soil profile. Concentration of nitrate nitrogen in percolate increased by application of pig manure. This trend was more obvious at the loam with fermented pig manure than sandy loam with fresh pig manure treatment. The concentration of nitrate nitrogen was lower under the maize cultivation than bare soil condition by 64.6-68.9%. Concentration of Ca, Mg and Na of soil and percolate increased as nitrate nitrogen concentration increased. The equivalent ratio of cation to nitrate nitrogen of percolate was increased by application of pig manure. This result showed that canon leaching was accompanied by nitrate nitrogen. Concentration of nitrate nitrogen of subsurface soil was increased by pig manure application.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.31 no.1
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• pp.104-111
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• 1986

This study was conducted to establish the fundamental of cultivation system in southern warm region of Korea by investigation of variation of yield component and yield under the different planting density, and that was 50, 70, 90 and 110 hills per 3.3㎡. In variations of thickness of culm under the different planting densities there were more thick as decrease in density, and there were fine culm in May 20 transplanting. In Seokwang, the optimum planting density was 90 hills/3.3㎡ in May 20 and June 5 transplanting, but in June 20 and July 5, it was 110 hills/3.3㎡, then in Dongjin, the maximum grain yield was obtained on 90 hills/303㎡ in May 20, June 5, June 20 transplanting, but in July 5 transplanting the highest yield was obtained in the plot of density 110 hills/303㎡. The rate of ripened grains was higher in the high density than that of low density on the late season culture. The degeneration of primary, secondary branches and spikelets was decreased with increase in planting density, and there was more significant tendency in Seokwang than in Dongjin. The no. of panicles per m2 was increased linearly with increase in planting density, and the variation of no. of panicles per m2 according to transplanting periods was greater in Seokwang than in Dongjin.