• Korean Journal of Fisheries and Aquatic Sciences
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• v.44 no.4
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• pp.359-365
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• 2011

This study was conducted to investigate the production, elver stocking, rearing facilities and rearing method of eel culture to determine aquaculture management conditions for optimal rearing of eel Anguilla japonica. The production of eel culture was evaluated by the proportion of eels from the main inland fin fish species production in Korea. Elver stocking was assessed by the elver stocking densities of pond and recirculation culture. Rearing facilities were investigated according to the rearing tank size proportion of the pond and recirculation culture. We selected sample farms by region and by size. We visited sample farms and recorded the number of elvers stock for pond area, size of tanks, feed and feed quantity, and the size and number of harvest eels. The production capacity of Jeollanam-do and Jeollabuk-do were 71.9% and 21.3% respectively. This production quantity represented 93.2% of the total Korean eel production quantity. In Jeollanam-do, there are 236 eel farms, 202 pond farms, and 34 recirculation aquaculture facilities. The elvers' first density data by each aquaculture method revealed that elvers' first density varied more in recirculation system farms, as compared to pond aquaculture. In intensive pond farms, the elvers' first density decreased as the size of farm increased. There was a correlation between the size of tank(x) and the facility of a water wheel for dissolved oxygen in pond culture systems(y=0.022x-0.494; $R^2$=0.860). Another strong correlation was found between the weight of eel(x) and eel density(y) in pond culture systems(y=283.5x-0.27; $R^2$=0.992). Finally, there was a strong correlation between the length of eel(x) and the weight of eel(y) in intensive pond culture(y=0.0005x-3.2783; $R^2$=0.9775). The final survival rate did not differ significantly among pond sizes and culture types.

• Korean Institute of Interior Design Journal
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• v.21 no.1
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• pp.170-176
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• 2012

Korean living culture raised the users' needs for sub-kitchen. In the traditional Korean house, there was large space related to kitchen area for preparing food and stock big and bulky housing stuffs. As apartment housing became dominant as Korean dwelling, sub-kitchen has been planed in the balcony that is not included in the sales area. In this study, the case of the apartment housing in Esiapolis, Daegu was analyzed. To plan the user-oriented sub-kitchen, the consumer research was carried out. Consumers needed a pantry, more storage near the kitchen, and wanted to place washing machine and washing stand in a sub-kitchen. Sub-kitchens were planed to meet those consumers' needs. Through this case study and former studies analysis, sub-kitchen's function unit was derived: wash, storage, auxiliary work. By combining each function unit, sub-kitchen was classified into 3 types, wash & auxiliary work, wash & storage, and wash & storage & auxiliary work. For each sub-kitchen type, components of function units, available layouts, and minimum size were recommended.

• Journal of Fisheries and Marine Sciences Education
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• v.15 no.1
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• pp.67-80
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• 2003

This study was carried out to study the reason responsible for the generation of the toxicity in pufferfish. It is well known that the wild pufferfish has the toxicity, but much less in cultured stock. Several previous studies asserted that the pufferfish would make the toxicity of itself, while others have claimed that the toxicity should be made by the bacteria in their intestines. We made an comparative study on the toxicity in pufferfish. Also, the toxicity was compared the pufferfish with the culture pufferfish under the same condition. Based on the present data, the toxicity was possibly caused by the feed that pufferfish intake.

• Journal of Mushroom
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• v.2 no.2
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• pp.45-48
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• 2004

The effect of $CO_2$ concentration (500, 3,000, $6,000{\mu}{\ell}/{\ell}$) on the mycelial growth and fruit body primordium formation of Ganoderma lucidum on nutrient agar medium was examined. Optimum $CO_2$ concentration for vegetative growth was above $3,000{\mu}{\ell}/{\ell}$. Fruit body initiation was accelerated at higher than $3,000{\mu}{\ell}/{\ell}$ $CO_2$ exposure but the maximum number and size of primordia, and primordium color were not influenced by $CO_2$ concentrations. Whereas each atypical fruiting structure forming stock culture showed different fruiting time under each concentration of $CO_2$ exposure.

• Journal of Forest and Environmental Science
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• v.7 no.1
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• pp.7-21
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• 1990

Without scientific understanding of the phase change and the rejuvenation in woody perennials, many tree breeders have successfully rejuvenated and multiplied mature trees of some tree species, i.e., Eucalyptus, Pseudotsuga menziesii Sequoia sempervirens, Pinus radiata, Pinus pinaster, Quercus virginiana, Hedera helix, Juglans, apples, grapes, and so on. Practical techniques discussed to rejuvenate the old trees include grafting to younger stock, growth regulator treatment, pruning, repeated cutting, and in vitro culture. However, a combination of skills mentioned is recommended for rejuvenation of the mature propagation material. It is strongly required to develop a morphological and/or biochemical indicator system to judge the juvenility.

• Journal of Microbiology and Biotechnology
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• v.14 no.1
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• pp.68-73
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• 2004

Ferritin is an iron storage protein found in most living organisms. For expression and industrial use, human light chain ferritin (L-ferritin) was cloned from human liver cDNA library and expressed in Pichia pastoris strain GS115. The recombinant L-ferritin in Pichia pastoris was glycosylated. In a fed-batch culture, the cell mass reached about 57 g/l of dry cell weight, and the L-ferritin in the cell was increased to about 95 mg/l after 150 h. In an atomic absorption spectrometry analysis, the intracellular content of iron in the L-ferritin transformant was measured as $1,694{\pm}85\;\mu\textrm{g}g/g$, which is 5.4-fold more than that of the control strain. This L-ferritin transformant could serve as iron-fortified nutrients in animal feed stock.

• Proceedings of the KSR Conference
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• 2004.10a
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• pp.449-454
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• 2004

As social and cultural value has been changed, customers are demanding equipment innovation of passenger quarters to improve the satisfaction of their needs and the level of transfortation culture. To promote the convenience of passenger and abstract the facilities factor of passenger quarters design, this article analyzed and compared with the facilities factor of passenger quarters which have been operated in domestic and foreign country. While domestic passenger quarters is composed of seat, toilet and washroom, foreign passengers quarters consist of various factor such as familly room, infant room, business room, conversation room, and multipurpose room. Especially, foreign passenger quarters have provided passenger with diversity of attachment space, securing movement line for weak person, and arranging infant/child's space.

• International Journal of Computer Science & Network Security
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• v.21 no.11
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• pp.271-275
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• 2021

The article assesses the role of the human factor in management, analyzes the personnel policy, as well as the style and methods of management at the enterprise. The purpose of the article is to study the place and role of personnel management in the general management system of an organization. Particular tasks of the research have been solved: the place and role of personnel management in the system of general management theory have been determined; determined the place of personnel management in the system of modern sciences.

• Journal of the Korean Data and Information Science Society
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• v.28 no.6
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• pp.1471-1479
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• 2017

The variability of trade price index of apartment influences on the various aspect, especially economics, social phenomenon, industry, and culture of the country. In this article, the autoregressive error (ARE) model has been considered for analyzing the monthly trading price index of apartment data. About 16 years of the monthly data have been used from September 2001 to May 2017. In the ARE model, six macroeconomic variables are used as the explanatory variables for the rade price index of apartment. The six explanatory variables are mortgage rate, oil import price index, consumer price index, KOSPI stock index, GDP, and GNI. The result has shown that trading price index of apartment explained about 76% by the mortgage rate, and KOSPI stock index.

• Horticultural Science & Technology
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• v.17 no.6
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• pp.765-767
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• 1999

Experiments were conducted to find out the optimum cultural conditions for adventitious shoot regeneration from leaf segments of Gypsophila paniculata L. Thidiazuron (TDZ) was remarkably effective for the regeneration of leaf segment in Gypsophila paniculata compared with BA and kinetin. TDZ showed the highest rate of regeneration at $3.0mg{\cdot}L^{-1}$, while kinetin did not affect the regeneration. BA in the medium increased vitrification. Shoot formation efficiency was much higher on $0.3mg{\cdot}L^{-1}$ of IAA-containing media than NAA-containing media. Regeneration of leaf segments was induced with the agar concentrations of 1.0, 1.2 and 1.6%. Dark treatment at the initial stage of the culture increased the rate of regeneration up to 75%. The leaf explants from the 3rd subcultured stock plants after meristem culture, showed the highest adventitious shoot regeneration efficiency.