• Journal of Korean Society for Atmospheric Environment
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• v.20 no.6
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• pp.749-758
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• 2004

Nitrous oxide ($N_2$O) has been known as an important trace gas due to the greenhouse gas and the major source of stratospheric oxide of nitrogen (NO). Soil is the major source of $N_2$O in nature. The physicochemical characteristics of soils affect the emission of $N_2$O from soil. These physicochemical parameters are soil moisture, soil temperature, and soil N content. Since these parameters are correlated to the flux of $N_2$O from soil individually and compositely, there still remain many unknowns in the mechanism to produce $N_2$O in soil and the roles of such physicochemical parameters which affect the soil $N_2$O emission. Soil $N_2$O fluxes were measured at different levels in water filled pore space (WFPS), soil temperature and soil N contents from the same amounts of soils which were sampled from agriculturally managed upland field in a depth of ～30 cm at Kunsan. The soil $N_2$O flux measurements were conducted in a laboratory with a closed flux chamber system. The optimum soil moisture and soil temperature were observed at 60% of WFPS and ～13$^{\circ}C$. The soil $N_2$O flux increased as soil N contents increases during the whole experimental hours (up to 48 hours). However, average $N_2$O flux decreased after ～30 hours when organic carbon was mixed with nitrogen in the sample soils. It is suggested that organic carbon could be important for the emission of $N_2$O, and that the ratio of N to C needs to be identified in the process of $N_2$O soil emission.

• The Journal of the Korea Contents Association
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• v.19 no.5
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• pp.128-137
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• 2019

This study typified and analyzed local governments' innovation policy through brand task and provided policy implications. A total of 844 local governments' brand task were used to classify the policy fields of the brand task by eight types of local governments. The main analysis results are summarized as follows. First, the ratio of social economy/local economy was the highest in all local government. Second, there is a difference in the policy fields that are focused by local governments. Third, the selection of innovation policy reflects the specificity of the region. Fourth, local government focusing on the type of brand task were differentiated. Therefore, these results confirm the theoretical relevance of the typology of local government suggested in the theoretical background. Policy implications are as follows: the necessity of innovation policy for revitalization of local economy, establishment of innovation policy in accordance with local characteristics, and propagation of excellent innovation policy.

• Korean Journal of Cognitive Science
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• v.19 no.4
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• pp.369-396
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• 2008

The purpose of this article is to investigate the effect of visual working memory, the types and contents of graphic annotations on English learning. The participants of the experiments were 5th and 6th graders. The result showed that animation was effective only in the word test for children with large visual working memory, whereas text-only-annotation yielded better performance in the comprehension test in Experiment 1. The effect of relevance of animations was tested in Experiment 2. Context-relevant-animations yielded better comprehension than the animations denoting the typical meaning, whereas the opposite pattern was reported in the word test. The result of the two experiments was interpreted in terms of cognitive load theory and the generative theory of multimedia learning.

• Asian-Australasian Journal of Animal Sciences
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• v.28 no.12
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• pp.1760-1766
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• 2015

This study investigated the proximate composition and $\small{L}$-carnitine and betaine content of meats from 5 lines of Korean indigenous chicken (KIC) for developing highly nutritious meat breeds with health benefits from the bioactive compounds such as $\small{L}$-carnitine and betaine in meat. In addition, the relevance of gender (male and female) and meat type (breast and thigh meat) was examined. A total of 595 F1 progeny (black [B], grey-brown [G], red-brown [R], white [W], and yellow-brown [Y]) from 70 full-sib families were used. The moisture, protein, fat, and ash contents of the meats were significantly affected by line, gender, and meat type (p<0.05). The males in line G and females in line B showed the highest protein and the lowest fat content of the meats. $\small{L}$-carnitine and betaine content showed effects of meat type, line, and gender (p<0.05). The highest $\small{L}$-carnitine content was found in breast and thigh meats from line Y in both genders. The breast meat from line G and the thigh meat from line R had the highest betaine content in males. The female breast and thigh meats showed the highest betaine content in line R. These data could be valuable for establishing selection strategies for developing highly nutritious chicken meat breeds in Korea.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.22 no.1
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• pp.281-299
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• 2011

The purpose of this study is to understand and analyze the satisfaction level of users regarding the search and search results of D College Library system implemented by Open API. For the study, 90 students of D College searched the library system with 4 subjects regarding on current affairs and assignments, and then evaluated the satisfaction on search functionality and contents usability. In results, they satisfied search expansion in general. Especially, the satisfaction levels for the convenience of search method and preview was the highest, but that of level for the arrangement and browsing of search results and the searching speed was the lowest. In terms of currentness, relevance, usefulness and utilizability aspects, Naver was the most highly evaluated, followed by library’s database, dissertation/academic journals, Youtube and Flikr. The cause of the unsatisfactory could be reduced when the library system implements the useful and attractive search interface.

• The Journal of the Korea Contents Association
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• v.20 no.8
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• pp.666-673
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• 2020

The purpose of this study was to investigate the relationship between dental decision factors and dental service satisfaction of the high school students. The study participants consisted of 300 high school students in some regions. A total of 288 were used for the final analysis, except 12 with insufficient responses. The data was analyzed by using SPSS 18.0 program. According to general characteristics, if there was no scaling experience, orthodontic treatment, high satisfaction with school life, the higher the subjective oral health status, the higher the satisfaction of the dental hospital. Hospital decision factors according to the general characteristics of the subjects most frequently answered that employee service satisfaction was important. As a result of testing the correlation between hospital decision factors and medical service satisfaction, there was a significant positive correlation between medical service satisfaction, such as facility, recommendation of others, use procedures, service adequacy, employee service satisfaction. As a factor influencing dental hospital satisfaction, subjective oral health was shown as a good criterion, and usage procedures and staff service satisfaction showed positive relevance. Continuous trust builds up is important to improve patient satisfaction.

• Women's Health Nursing
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• v.22 no.2
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• pp.104-115
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• 2016

Purpose: The purpose of this study was to develop a web-based sexual health program for women undergoing treatment for gynecologic cancer and their partners, and to evaluate the validity of the developed program. Methods: A web-based sexual health program was developed and evaluated: analysis (needs assessment on 23 patients and content analysis through literature review and web search), design, development, implementation, and evaluation. Results: The web-based sexual health program for women undergoing treatment for gynecologic cancer and their partners was structured with sexual life, sexual response cycle, change of sexual function, sexual dysfunction related to treatment, and useful method for sexual dysfunction. This program included a video to improve for understanding and a bulletin board to promote bi-directional interactions between program users and providers. Experts and users rated this program in terms of efficacy, convenience, design, relevance, and usefulness. This program contents were found appropriate and satisfactory to both experts and users. Conclusion: This web-based sexual health program for women undergoing treatment for gynecologic cancer and their partners would contribute to sexual health promotion for gynecologic cancer women and their partners.

• The Journal of the Korea Contents Association
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• v.17 no.5
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• pp.326-336
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• 2017

This study investigates the relevance of stress, self factor and emotional factor, and the influence on Smartphone Addiction Level among college students. The survey was administered to 261 college students in J city from December 16th to 23rd, 2016. The structured self-administered questionaries were used. The multiple linear regression analysis revealed that the factors with explanatory powers of 52% on Smartphone Addiction Level included physical activity changes, sleep disorders, the self control about self factors, the impulsion of emotional factors. With the analysis of covariance structure, we could confirm the relationship among the four factors such as stress, self factor, emotional factor and Smartphone Addiction Level. The results of the study indicate that the efforts to manage stress, self factors and emotional factors, are required to reduce the Smartphone Addiction Level of the college students. The results are expected to be useful for the development of programs and policy to decrease the Smartphone Addiction Level. In the following study, structural equation modeling about additional factors, which influences on Smartphone Addiction Level, will be needed.

• Proceedings of the Korea Contents Association Conference
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• 2009.05a
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• pp.816-821
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• 2009

In this paper, I would like to talk about a step by step detailed information browsing which is founded on hierarchical structure for offering suitable information about the mass 3D data of a national treasure building to user as a standard of the visual distance. A step by step detailed information of the national treasure building of gigantic proportions offers a process of detailed information browsing which decided suitable hierarchical structure as considering of the preprocessing procedure which produces hierarchical structure and a visual distance of user. In the preprocessing procedure, 3D data is divided and controlled by optimized spacial structures. The relevance connection between the inner spacial surface is then examined and reconfigured in order to prevent holes or distortions. Finally, relative information data is created. In detailed information browsing, by examining the visual distance between model and user, then by browsing proper step of data, suitable level model data can be provided to the users in accordance with the position of observation.

• Journal of the Korean Society of Food Science and Nutrition
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• v.43 no.12
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• pp.1937-1941
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• 2014

The effects of Tabebuia avellanedae (Taheebo) on exercise endurance capacity were investigated using mice in an adjustable-current water pool. Compared to the control group, a 1.8~2.0 fold increase in swimming time was observed in mice administered hot water extract (TAW) and 80% ethanol extract (TAE) of inner bark from T. avellanedae. Blood lactate level, an important fatigue relevance factor, was significantly lower in the TAW and TAE groups than in the control group. The total phenolic contents of TAW and TAE were $93.3{\pm}1.6$ and $115.7{\pm}1.5mgGAE/g$, respectively. The levels of flavonoids in the extracts were $77.3{\pm}1.3$ and $95.9{\pm}1.7mgCE/g$, respectively. Higher antioxidant activities of TAE were observed in each assay at the same concentration as compared to TAW. Correlation between antioxidant activities of TAE with total polyphenol contents was observed. These results suggest that extracts of Taheebo increase exercise endurance capacity by elevating antioxidative potentials.