• Journal of Korean Medical Ki-Gong Academy
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• v.4 no.1
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• pp.179-200
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• 2000

• Korean Journal of Ichthyology
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• v.32 no.2
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• pp.55-62
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• 2020

The Relative weight index is an index for evaluating nutritional condition of fish by calculating a ratio of observed weight to standard weight. The purpose of this study is estimating standard Length-Weight relationships (standard LWRs) to calculate standard weight for application of relative weight index and analyze frequency distribution of relative weight index of 10 freshwater fish in the South Korea. The standard LWRs for each species was calculated by the Length-Weight data sets from 798 times of captures at 141 sites. The correlation of determination (r²) for all species was over 0.9 and values of parameter b were within the expected range according to Froese (2006). We calculated in increments of 10 from 10 to 90 percentile of relative weight index for each species, and it could be used as a standard for quantitative assessment of nutritional condition of freshwater fish.

• Applied Biological Chemistry
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• v.36 no.2
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• pp.127-133
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• 1993

The concentrations of tocopherols and compositions of fatty acids during germination and maturation of soybean seeds were determined by HPLC and GC. In germination stages, when the length of seedling axis was about 10 cm, the contents of total tocopherols and lipids were the highest. At the early phase of pod filling on field condition, the concentration of ${\delta}-tocopherol$ in soybean seeds was the highest, but, in further pod filling, the content of ${\delta}-tocopherol$ decreased continuously, and ${\alpha}-$ and ${\gamma}-tocopherol$ increased. Accumulation of oil during pod filling seems to be determined at the beginning. There seem positive correlations between several tocopherol homologues and fatty acids.

• Journal of the Korea Convergence Society
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• v.9 no.10
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• pp.75-80
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• 2018

In this paper, we propose heterogeneous lifelog mining model in health big-data platform. It is an ontology-based mining model for collecting user's lifelog in real-time and providing healthcare services. The proposed method distributes heterogeneous lifelog data and processes it in real time in a cloud computing environment. The knowledge base is reconstructed by an upper ontology method suitable for the environment constructed based on the heterogeneous ontology. The restructured knowledge base generates inference rules using Jena 4.0 inference engines, and provides real-time healthcare services by rule-based inference methods. Lifelog mining constructs an analysis of hidden relationships and a predictive model for time-series bio-signal. This enables real-time healthcare services that realize preventive health services to detect changes in the users' bio-signal by exploring negative or positive correlations that are not included in the relationships or inference rules. The performance evaluation shows that the proposed heterogeneous lifelog mining model method is superior to other models with an accuracy of 0.734, a precision of 0.752.

• Journal of Wetlands Research
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• v.20 no.4
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• pp.322-329
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• 2018

In this study the community characteristics of benthic macroinvertebrates distributed in stream of Gaya Mountain were figured out and the correlation with the physicochemical water quality factors were calculated. During the study period, total 4 phyla, 6 classes, 13 orders, 36 families, 100 species of benthic macroinvertebrates were recorded. Ephemeroptera were the most dominant followed by Trichoptera, Plecoptera, Diptera, Non-insecta, Hemiptera, and Odonata. The overall dominant species was Cincticostella levanidovae by dominance rate in 17.72%, subdominant species was Hydatophylax nigrovittatus by dominance rate in 6.15%. The biotic indices showed the diversity index 5.17, richness index 12.44, dominant index 0.24 and evenness index 0.78, there is no absolutely dominant benthic macroinvertebrates in the stream of Gaya Mountain. We identified the correlation between the species number and individuals of main taxa and the physicochemical water quality factors. Ephemeroptera and Plecoptera showed a negative correlation with water temperature, but they represented a positive correlation with the dissolved oxygen. This results suggest that water temperature and dissolved oxygen are important physicochemical water quality factors affects the distribution of Ephemeroptera and Plecoptera, the indicators of clean water stream.

• Journal of Korean Society of Forest Science
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• v.103 no.2
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• pp.211-217
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• 2014

A metabolomic study using GC/MS analysis was conducted to identify key metabolic components regulating the growth of open-pollinated Pinus koraiensis families, which were grown for 29 years at three different locations. Among 110 individual metabolites identified, the contents of 62 metabolites were higher in the superior than in the inferior families (p<0.05), together with 22 metabolites, such as phosphoric acid, alanine, glycine, malic acid, and sucrose, being accumulated 1.5-fold higher in the superior families. In addition, 15 metabolites including alanine, malic acid, sucrose, d-turanose, and succinic acid showed positive correlation with the growth (p<0.01). Furthermore, the metabolites, of which contents were correlated with the growth but not significantly changed at different locations, were acetic acid, succinic acid, butanoic acid, glutamic acid, and inositol. Therefore we suggest that several metabolites selected in this study may be used as metabolic markers for quantitative growth trait in P. koraiensis.

• Korean Journal of Food Science and Technology
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• v.36 no.3
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• pp.423-431
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• 2004

Quality of commercial salted and fermented fish sauce was evaluated through physicochemical and sensory analyses. Moisture contents of all samples tested except one salted and fermented sandlance sauce were acceptable. Salinity of some samples was higher than that of Korean food standard. Higher contents of total nitrogen (TN) and amino nitrogen (AN) resulted in higher levels of specific gravity, pure extract and solid of some samples. Two salted and fermented anchovy and three salted and fermented sandlance sauce samples showed lower levels of TN and AN than those of Korean food standards. TN, AN, specific gravity, pure extract, solid, and volatile basic nitrogen levels highly correlated with sensory scores, indicating that these values could be used as quality parameters to evaluate salted and fermented fish sauce quality.

• Korean Journal of Agricultural Science
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• v.16 no.1
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• pp.118-128
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• 1989

This experiment was conducted to study the relation between the equilibrium moisture contents and the hygroscopic components in the various tobacco matters such as NC-82, Br-21, R.T.S., and puffed stem. The order of the high equilibrium moisture contents was the puffed stem, R.T.S., NC-82, and Br-21. The H-1 grades of NC-82 and Br-21 contained high contents of total sugar had higher equilibrium moisture contents than others. The moisture contents in NC-82 and Br-21 were increased at higher temperature, $30^{\circ}C$ than $20^{\circ}C$. The grades with high amounts of water extracts and total sugar affected to increase the equilibrium moisture contents in NC-82 and Br-21. In conclusion, the equilibrium contents were related to the structure of tobacco matter, the grades, the temperature, and the amount of some chemical components such as water extracts and total sugar of the leaf tobacco.

• The Journal of the Convergence on Culture Technology
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• v.6 no.3
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• pp.381-392
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• 2020

This study is purposed to check up the natural 12 kinds of herbal extracts suitable for hangover and based on the results of contents of phenolic compounds, ABTS radical scavenging activity, alcohol dehydrogenase (ADH), and acetaldehyde dehydrogenase (ALDH). Selected 8 kinds of herbal extracts are blended according to the efficacy and the pearson's correlation between each content and activity. C. sinensis var. sinensis, P. densiflora Gnarl and P. lobata Ohwi showed excellent ADH activity, P. lobata Ohwi had a strong correlation between the content and efficacy, and C. sinensis var. sinensis, P. densiflora Gnarl had a negative correlation. Through the ADH and ALDH activity test of F.1 to F.7, the F.7 showed the highest synergic effect and selected as an optimal formulation. F.7 intake-group, the breath alcohol concentration was significantly reduced to 58% after 30 minutes and 27% after 120 minutes, compared to right after alcohol consumption. After alcohol consumption, there was a significant improvement effect (p<0.05) in tired and thirst in the intake group compared to the non-intake group.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.33 no.2
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• pp.126-133
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• 1988

To know the optimum harvest time for seed yield and seed quality a local variety of rye 'Paldang-homil'was harvested at seven different harvest times from 25 to 55 day after heading (DAH) at five-day intervals in 1984 ani 1986. Seed development, seed germination and seedling growth were observed. The l000-grain weight increased as harvest time delayed until 50 DAH in both years. Although grain yield tended to increase with delay of harvest time, the yield differences between succeding harvest time was highest between 40 DAH and 45 DAH. Germination rate of seeds harvested before 30 DAH were lower than those after 35 DAH at 20 C, but at 10 and 30 C before 35 DAH were lower after 40 DAH. Plant height and dry weight of seedlings increased with delay of harvest time up to 45 DAH in pot. Heading stages were similar among the seeds harvested 40-55 DAH. Culm length was not different among the harvest times. The optimum harvest time for seed production of rye seems to be 45 DAH (38 days after flowering).