• Magazine of the Korean Society of Agricultural Engineers
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• v.44 no.7
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• pp.14-24
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• 2002

The effect of reclaimed water irrigation on paddy rice culture was evaluated by pilot study at the experimental field of Konkuk University in Seoul, Korea. The sewage was treated by constructed wetland system, and its effluent was used as irrigation water for four treatments and one control plots with three replications. Irrigation of reclaimed water onto paddy rice cultures did not adversely affect the growth and yield of rice. Instead, experimental rice plots of reclaimed water irrigation displayed about 10 to 50% more yield on average than controls. This implies that reclaimed water irrigation might be beneficial rather than harmful to rice culture as long as the sewage is treated adequately and used properly. The amount of irrigation water had little effect on experimental rice cultures, but its strength was important. The strength of treated sewage was not a limiting factor in this study, and no lodging was observed even with a relatively high nitrogen concentration (up to 160mg/L). In general the paddy soil was not affected by reclaimed water irrigation. However, there was an indication that continuous irrigation with high strength of reclaimed water might cause salt accumulation in the soil. Supplemental use of reclaimed water with existing sources of irrigation water is recommended rather than irrigation with a single source of reclaimed water. Overall, the results demonstrated that reclaimed water could be reused as a supplemental source of irrigation water for paddy rice culture without causing adverse effects as long as it is properly managed. For full-scale application, further investigation should be done on environmental risks, tolerable water quality, and fraction of supplemental irrigation.

• The Journal of the Convergence on Culture Technology
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• v.6 no.2
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• pp.117-122
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• 2020

In this study, among the new industries that are attracting attention as a new industry to lead the 4th Industrial Revolution era, Korean traditional culture and arts are being promoted in the context of local community efforts and collaboration between industry and academia. It aims to create jobs through local traditional culture, arts, tourism events and design product development, while seeking ways to secure labor force that can save and revitalize high value-added industries in the community. In particular, in the current situation where the era of change and the education of traditional techniques are increasingly ignored and neglected, this study is a traditional cultural art through natural dyeing education and cultural and art events conducted by industry, regional universities, and research institutes in Pyeongtaek for many years. It is expected to be used as a basic data for the transmission and creation of high value-added jobs.

• The Korean Journal of Ecology
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• v.18 no.1
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• pp.17-30
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• 1995

The growth of Scenedesmus quadricauda (Trup.) Breb. is enhanced by methylyoxal (MG), a general inhibitor of cell division, at threshold concentration in conjunction with reatment timing relative to growth stage. The stimulatory effect of MG on algal cell growth was most significant with 2.27-fold of untreated algal culture in cell number when 0.5 mM of MG was added to the algal culture at the beginning of logarithmic phase with an initial MG concentration of 0.535 mg $MG/10^6cell$. A Specific growth rates (SGRs) of MG-treated cultures were rapidly increased at the beginning of logarithmic phase with 1.89-fold of untreated algal culture. Cultures inoculated with high cell numbers of 2.4 to 4.8 X $10^4$ cells/ml were less sensitive to 0.5 mM of MG treatment. The algal cell division was ranged from 0.392 to 0.924 mg MG/106 cell. If the cell number of an algal culture at the time of inoculation was low (0.6 X $10^4$ cells/ml) and MG was added before logarithmic phase, the cell number of 0.5 mM of MG-treated cultures were lower than those of controls. In algal cultures treated with high concentrations of MG (1.0 mM and 2.0 mM), the algal growth was inhibited. Photosynthetic rate of growth-enhanced algal by 0.5 mM of MG was significantly higher than that of untreated or 1.0 mM of MG-treated algal cell, while there was no significant difference among those groups in respiratory rate. Pyruvate concentration in 0.5 mM of MG-treated culture was incrcased agter methylglyoxal trcatment.

• Journal of Korean Clinical Nursing Research
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• v.18 no.2
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• pp.215-227
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• 2012

Purpose: This study was conducted to examine clinical nurses' perceptions on the nursing organizational culture and investigate the differences in their perceptions according to age groups in South Korea. Methods: Participants were 1,087 nurses from 25 general hospitals in South Korea. Data were collected from July 29 to September 30 in 2011, and were analyzed using descriptive statistics, ANOVA with $Scheff{\grave{e}}$ test, and factor analysis. Results: Nurses perceived nursing as an excellent professional job which progresses continually. Autonomy and individualized reward to their professional work, however, were reported not-satisfactory to them. They agreed that nurses are punctual, polite, honest, and responsible, while disagreeing in competitiveness. There were differences in perceiving cultural factors according to age groups. The subjects in their over 40s perceived 'professionalism', 'normative', 'strictness', 'rightfulness', and 'community spirit' strongly, while nurses in their 20s perceived 'conservatism' highly. Also, nurses' perception on the organizational commitment and job satisfaction were high in over 40s while turnover intention was high in other groups. Conclusion: Nurse managers need to assess the perception on nursing organizational culture in order to improve nursing work environment better. In addition, it is necessary to take into account seriously the generation gap to build supportive nursing organizational culture.

• Microbiology and Biotechnology Letters
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• v.32 no.2
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• pp.149-153
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• 2004

L-Threonine fermentation process was constructed on batch and fed-batch culture by using Escherichia coli MT201. The production type of L-threonine was observed as growth-associated production in batch culture. In fed-batch culture studying optimal concentration of yeast extract in feeding media, when 600 g/l of glucose and 60 g/l of yeast extract were added in feeding media, 87 g/$\ell$ of L-threonine was produced. To improve cell growth and L-threonine production, the culture of high cell density was performed in fed-batch culture with oxygen enriched air and feeding media containing L-methionine and phosphate. Under the conditions, we could achieve the highest L-threonine production of98 g/$\ell$ at 60 h. The highest productivity of L-threonine was about 3.85 g/$\ell$/h.

• Journal of the Korean Society of Food Culture
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• v.11 no.1
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• pp.43-52
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• 1996

[Goshogi] which is held from 9th to 16th January, every year is the Buddhist service of praying for the soul of Shinran's $(l173{\sim}1262)$ after death. It is the most majestic high-filling style and also unparalled in the annals of Japanese history in sacrificial offering. Shinran was horned in the Fujiwara's family. And not only he believed Prince Shodoku's belife but also retired to the mountain to enter the priesthood by it. Prince Shodoku built Horyu temple which is the typical temple of Nara ages. Buddism was transmitted from Korean peninsula, three countries of Silla, Bekje and Kokuryo effected on many field of Japnese culture during that ages. At the same time, Kasugadaisha and Danjanjinja of Shinto religion was built by Fujiwara Family. Both of them was Buddhist temple before. Throughout like these historical background, the facts what the religious services and the sacrificial offerings for Prince Shodoku, Wakamiyasai of Kasugas' and Kakitsusai of Danjanjinja must be influenced from Korean Peningula. So the dietary culture of the religious rites and traditional customs between two countries could be thought the relation with a narrow stream strait. But among them, in the size, color and shape, the cooking method and technique in the usage of rice powder and sugar, it is tops in value. The noteworthy points of the thought were as follows: 1. high-filling style of the sacrificial offerings what is mixed and harmonized with Buddhism, Confucious, Sharmanism, Toaism and Korean traditioal customs. 2. eating together of god and human. 3. the fusion of gods and Buddha.

• International Journal of Computer Science & Network Security
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• v.22 no.3
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• pp.141-146
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• 2022

In modern educational practices, the issue of dependence on the experience of using multimedia by students and the adoption of technologies in education, the perception of their benefits and effectiveness in blended learning is little covered. The purpose of the academic paper lies in assessing the audiovisual context of multimedia technologies, its acceptance by students in practice on the example of using video lectures in blended learning. The methodology is based on an online survey of 120 students of Ukrainian universities who have assessed the experience level in using video lectures, as well as the constructs as follows: Technology Characteristics, Fit, Perceived Usefulness, Perceived Ease of Use, Attitude, Intention to Use, Actual Use. The results show that the majority of students use video lectures to a certain extent in their training (20,8% have used technology to a certain extent, 49,2% have often used technology in training, 20% are regular users of technology). It has been revealed that most students agree with the relevance of video lectures, the accuracy of lectures, the brevity of lectures, the clarity of lectures, as well as the high quality of lecture videos. It has been estimated that 42,5% believe that lecture videos are an effective tool towards supporting students in hybrid learning. 26,7% of students consider video lectures to be appropriate technologies for online / hybrid courses. In general, 37,5% of respondents find video lectures useful; however, 35,0% do not agree with this statement. 83,3% of students have rated the high level of ease of access to video. In total, 95% of students find lecture videos easy to use. In general, positive attitude of students to video lectures has been revealed.

• Korean Aquaculture
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• v.12 no.1
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• pp.109-113
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• 2000

• Proceedings of the Zoological Society Korea Conference
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• 1995.10b
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• pp.332.1-332
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• 1995

No Abstract, See Full Text

• The Research Journal of the Costume Culture
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• v.7 no.6
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• pp.28-40
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• 1999

The purpose of this study was to understand the Korean teenagers\` clothing behavior through pointing out the factors that clothing behavior of teenagers that was initiated from the important reference group, TV stars. The subject of this study were 570 purposively selected students at female middle and high school students in Seoul. The results were as follows : 1. The clothing conformity to TV stars relating to demographic variables was influenced significantly by location and personal expense variable in the high school group. 2. The exhibition showed a more important role to the clothing conformity in middle school group than in high school group. 3. The clothing conformity to TV stars relating to the clothing related variables was significantly affected by self-confidence to clothing than clothing normative recognition, clothing risk recognition and degree of clothing importance regardless of groups. 4. The clothing conformity to TV stars relating to TV media variables was affected by TV media star identification variable in both groups. And in case of middle school group, interests in TV stars also had influence on the clothing conformity to TV stars. And in case of high school group, interests in TV had effect on the imitation to TV stars\` clothing. As middle school students tend to have self-identification about a particular person, TV media stars become the reference group for the adolescence to follow their clothing.