• Journal of the Korean earth science society
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• v.43 no.6
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• pp.762-776
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• 2022

The purpose of this study was to determined the conceptual structure used by earth science teachers to classify metamorphic rocks as well as the criteria applied in the process of classifying metamorphic rocks. To this end, the researchers collected verbal data uttered in the process of classifying metamorphic rock using think-aloud from 21 earth science teachers in middle and high schools in Jeollabuk-do, Republic of Korea. The collected verbal data were analyzed using the semantic network analysis method, and the following results were obtained. First, in the process of classifying metamorphic rocks, earth science teachers classified them based on characteristics such as color, compositional minerals, and particle size, which can be generally observed in rocks, and foliation that appears in metamorphic rocks. Second, earth science teachers recognize the classification criteria for metamorphic rocks and focus on metamorphism such as contact metamorphism or regional metamorphism. However, there were cases where rocks were mistakenly classified through incorrect identification. Therefore, it is necessary to provide sufficient observational information about, and experience of, metamorphic rocks to enable earth science teachers to recognize and relate to the scientific process of identifying metamorphic rocks through the phenomena observed.

• Journal of the Korean earth science society
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• v.44 no.1
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• pp.36-46
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• 2023

In this study, small bird tracks from the Cretaceous Sanbukdong Formation in Gunsan City, South Korea, were briefly described. Detrital zircon SHRIMP U-Pb dating was conducted of the tuffaceous sandstone from the formation to determine the depositional age of the vertebrate track-bearing strata. Small bird tracks are not well-preserved but divided into two types: two consecutive tracks and three isolated tracks. They are small, asymmetric, slender, functionally-tridactyl tracks, which lack a web between digits. The consecutive and isolated tracks were identified as Koreanaornis dodsoni? and Koreanaornis ichnosp., respectively. This study adds avian tracks to the Sanbukdong tetrapod track assemblage composed of theropods, ornithopods, and pterosaur tracks. According to the U-Pb dating, the estimated age of the Sanbukdong Formation is 112.5±5.8 Ma, regard as the Aptian Stage, representing the maximum depositional age for the Sanbukdong Formation. The Sanbukdong Formation can be correlated with the lower part of the Jinju Formation in the Gyeongsang Basin. Thus, small avian tracks may represent the oldest Korean occurrence of Koreanaornis.

• Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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• v.7 no.3
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• pp.597-604
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• 2017

The purpose of this study is to examine the moderating effect of choice realization between service quality and user satisfaction to elderly home care services. For this purpose, we analyzed 258 respondents who received elderly home care service in Jeollabuk-do. Considering the assumption that the moderating effect of choice realization would be different by rural and urban areas because of the disparity of the elderly welfare infrastructure, the urban and rural areas were analyzed separately. The analyses showed that choice realization had a moderating effect on the relationship between service quality and user's service satisfaction for the service clients resided in urban areas. However, there was no significant moderating effect of choice realization for the service clients in rural areas. This result implies that the moderating effect of selection realization is different in rural and urban areas because of the poor elderly home care facilities in rural areas. In order for aged people to actively express the effect of service user choice, it is necessary to solve welfare imbalance between regions through expansion of welfare infrastructure and policy support to rural area.

• Korea Journal of Hospital Management
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• v.28 no.3
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• pp.15-26
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• 2023

Purposes: Evaluate the level of mental health of administrative workers in medical institutions during the COVID-19 epidemic, and check the relationship. Methodology: It targeted 183 administrative workers at medical institutions located in Jeollabuk-do. The data survey method used a self-filled questionnaire, and the data collection period was 30 days from November 16, 2021 to December 16, 2021. A comparative analysis was conducted to find out the correlation between the subjects' biological factors, environmental factors, lifestyle factors, job related factors and depression, Post Traumatic Stress Disorder, and job stress. Findings: As an influencing factor of depression, it was found that the longer the working period, the higher the depression, and the higher the position, job satisfaction, and the total amount of smoking, the lower the depression. Due to the effect on Post Traumatic Stress Disorder, the higher the total amount of smoking, the higher the Post Traumatic Stress Disorder after effects, and the higher the organizational commitment and job satisfaction, the lower the Post Traumatic Stress Disorder aftereffects. It was found that organizational commitment had the highest influence on Post Traumatic Stress Disorder. As an influencing factor on job stress, it was found that the higher the job related factors was job satisfaction and organizational commitment, the lower the job stress. Practical Implications: Variables such as moderate physical activity, alcohol consumption, total smoking, working period, position, job satisfaction, and organizational commitment were identified as factors influencing depression, Post Traumatic Stress Disorder, and job stress during the COVID-19 pandemic.

• The Transactions of the Korea Information Processing Society
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• v.13 no.4
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• pp.199-207
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• 2024

Local reservoirs are crucial sources for agricultural water supply, necessitating stable water level management to prepare for extreme climate conditions such as droughts. Water level prediction is significantly influenced by local climate characteristics, such as localized rainfall, as well as seasonal factors including cropping times, making it essential to understand the correlation between input and output data as much as selecting an appropriate prediction model. In this study, extensive multivariate data from over 400 reservoirs in Jeollabuk-do from 1991 to 2022 was utilized to train and validate a water level prediction model that comprehensively reflects the complex hydrological and climatological environmental factors of each reservoir, and to analyze the impact of each input feature on the prediction performance of water levels. Instead of focusing on improvements in water level performance through neural network structures, the study adopts a basic Feedforward Neural Network composed of fully connected layers, batch normalization, dropout, and activation functions, focusing on the correlation between multivariate input data and prediction performance. Additionally, most existing studies only present short-term prediction performance on a daily basis, which is not suitable for practical environments that require medium to long-term predictions, such as 10 days or a month. Therefore, this study measured the water level prediction performance up to one month ahead through a recursive method that uses daily prediction values as the next input. The experiment identified performance changes according to the prediction period and analyzed the impact of each input feature on the overall performance based on an Ablation study.

• Journal of the Korea Society of Computer and Information
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• v.29 no.3
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• pp.67-74
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• 2024

In this paper, we present a study aimed at analyzing how different rainfall measurement methods affect the performance of reservoir water level predictions. This work is particularly timely given the increasing emphasis on climate change and the sustainable management of water resources. To this end, we have employed rainfall data from ASOS, AWS, and Thiessen Network-based measures provided by the KMA Weather Data Service to train our neural network models for reservoir yield predictions. Our analysis, which encompasses 34 reservoirs in Jeollabuk-do Province, examines how each method contributes to enhancing prediction accuracy. The results reveal that models using rainfall data based on the Thiessen Network's area rainfall ratio yield the highest accuracy. This can be attributed to the method's accounting for precise distances between observation stations, offering a more accurate reflection of the actual rainfall across different regions. These findings underscore the importance of precise regional rainfall data in predicting reservoir yields. Additionally, the paper underscores the significance of meticulous rainfall measurement and data analysis, and discusses the prediction model's potential applications in agriculture, urban planning, and flood management.

• Journal of the Korean earth science society
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• v.45 no.1
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• pp.85-109
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• 2024

Detrital zircon U-Pb dating was performed to determine the depositional age and provenance of sediments in the Cretaceous Muju Basin in Muju-gun, Jeollabuk-do. Six samples were collected from the Seolcheon Tuff (SCT), Bangyiri Formation (BYR), Gobang Member of the Gilwangri Formation (GWR-G), Seochang Member of the Gilwangri Formation (GWR-S), Bukchang Member of the Gilwangri Formation (GWR-B), and Jeogsangsan Formation (JSS). Based on the dating results, the sedimentary strata of the Muju Basin were deposited for approximately 105.6-90.4 Ma corresponding to the Albian to Turonian. The youngest single zircon ages of about 94.4 Ma and 89.6 Ma were confirmed in the samples from the Bangyiri Formation and the Gobang Member of the Gilwangri Formation, respectively, distributed in the western part of the Muju Basin. The relative and numerical ages previously estimated based on the lithostratigraphic correlation of the Gilwangri conglomerate need to be revisited in further research. The results also suggest that most of the sediments filling the Muju Basin were supplied from a limited area adjacent to the basin.

• Korean Journal of Environmental Biology
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• v.41 no.4
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• pp.447-454
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• 2023

This study was conducted to analyze the effects of stand density on fire fuel (FF) changes in a Chamaecyparis obtusa forest. The study site was located in Mt. Munsu in Jeollabuk-do and consisted of a control, 30% thinning treatment(LT), and 50% thinning treatment(HT). Three-year-old seedlings were planted at a density of 3,000trees ha^-1 in 1976, and thinning was carried out in 2000. FF production was measured every 2 months by installing 3 circular litter traps 1.2m above the ground. Litter bags containing 5g of each leaf and branch were made and buried in the organic layer to investigate the FF decomposition rate. The decay constant was calculated after 18 months. FF accumulation was measured by collecting dry-weight organic matter from each plot using a square frame (0.09 m²) in September 2018. The FF production in LT and HT was significantly lower than that of the control(P<0.001). The leaf decay constant for HT was significantly lower than that of the control (P<0.05). The FF accumulation in HT was significantly lower than that of the control (P<0.01), but LT was not significantly different from the control. The results of this study showed that thinning decreased FF production.

• Journal of Christian Education in Korea
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• v.76
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• pp.259-280
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• 2023

Purpose of study: This study aims to analyze the educational use of metaverses among pre-service nursing teachers at a university and explore the implications of designing and operating effective metaverse lessons. Research content and method: This study collected and analyzed data on the experiences and perceptions of 32 pre-nursing teachers enrolled in J University, a very small Christian-based university in Jeonju, Jeollabuk-do, Korea, who participated in a class using metaverses. And based on this, we analyzed the advantages, difficulties, and improvements of the class, differences from classes using Zoom, impressions of the class, and suggestions for effective classes. Conclusions and Suggestions: As a result of analyzing various aspects of perceptions and experiences of classes utilizing the metaverse, it was found that in order to conduct effective classes utilizing the metaverse, it is necessary to check the infrastructure for communication and devices before class, select a metaverse platform according to the goals and contents of the course, and build a space for educational activities. In addition, it was found that it is necessary to provide guidance on how to use the metaverse and conduct sufficient training before running classes with learner-centered teaching methods. In the future, it is expected that systematic research on the principles and teaching-learning models of classroom design using the metaverse will continue to be conducted.

• (The) Research of the performance art and culture
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• no.32
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• pp.131-169
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• 2016

We will study cultural sprauchling about Pungmul-Kut to find out the sphere of "Gui-myeong-gui" alongside Jeollanam-do, Jeollabuk-do western coast. In this area, there are some traits and terms about Gui-myeong-gui, a sort of Pungmul-Kut and Goon-go. Several Pungmul-Kuts which border the sphere of Gui-myeong-gui are Goon-gui in a southern direction, Unnyeongnongak of Honamudonongak in a eartern direction, and Yeongmujangnongak. The acculturation occurs in two ways. One is the possible acculturation with Goon-gi or Goon-go in coastal areas. The other is the acculturation with Honamudonongak. Especially, this phenomenan appears in double-way interaction. At first, there is the influence of Gui-myeong-gui in Honamudonongak. Kim Bau's style, which might relate to Gui-myeong-gui in Geommopojin, incorporate one of Panje of Honamudonongak through Park Namsik. This phenomenon is porved by the affinity between Eunjijaetji Galag of Honamudonongak GeollibKut and Eungmagaenggaeng Galag of Goon-go, and by the similarity to Neonari-Galag. In case of Neonari-Galag, the role of Jing in Neonari-Galag is replaced by Janggu in Honamudonongak, because of the geatest popularity of Janggu in those days. Secondly, there is the influence of Honamudonongak in Gui-myeong-gui. Northern sphere of Gui-myeong-gui like Buan-gun, Okgu-gun has been influenced since early $20^{th}$ century. In addition, the phenomenon which the sphere of Gui-myeong-gui accepts actively Honamudonongak could occur. So this thesis fragmentarilly checks the existence and traits of Gui-myeong-gui. Based on it, we would be able to reveal and reconstitute the nature of Gui-myeong-gui by understanding acculturation of Pungmul-Kut and by comparing Goon-go with Honamudonongak and Yeongmujangnongak in several regions. Also this thesis draws attention about meanings and effects of Yeonhuinongak's acceptace of Goon-beop.