• Korean Journal of Heritage: History & Science
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• v.52 no.1
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• pp.22-43
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• 2019

Mureung Valley was designed as a place of scenic beauty. It was called a utopia because of its unexplored regions. Many people traveled to this place and wrote poetry and prose describing it. It represented a culturally historic site and an example of the changing of cultural spaces. Mureung Valley was one of the nameless valleys in Duta Mountain, but "Mureunggye" was named by Kim Hyon Won, who was a governor of Samcheok.. The valley acquired a reputation for many people's visiting. It was a famous space because local residents liked the place, and famous people also loved the place. This place was adapted into a cultural place with a link to the immortal world and an educational place by people's travel stories. The place maintained a reputation until now and took center stage as a famous travel space. One of the reasons it became a place of famous scenic beauty is travel. People who travel to Mureung Valley created poetry and prose containing their excitement and travel stories. As the poetry and prose had esthetic images of Mureung Valley, people understood the place. The poetry and prose showed the meaning of the place and the changing process. These codified the reputation in the place. Mureung Valley was pointed out in one of the Cheokju-Palkyoungs. However, Mugye-Palkyoung (only for Mureung Valley) was made. It was understood as the most beautiful scenery in the place and it had the meaning of the ethics place which embodied Neo Confucianism. Mureung Valley has a great natural landscape and cultural history background. That is how this place of scenic beauty was created.

• Management & Information Systems Review
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• v.37 no.4
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• pp.75-92
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• 2018

The Purpose of this study was to verify that the corporate social contribution activity(eco-friendly product production, donation activity, volunteer activity, fair trade had a positive influence on the corporate credibility, the intention of price premium and the persistent purchase intention. And also this study examined the differences of corporate credibility and price premium according to consumer's gender. To accomplish the purpose of this paper, I performed literature review which relates to corporate social contribution activity, the corporate credibility, the price premium and the persistent purchase intention, and also performed empirical research. I produced questionnaire which investigates the relation between the factors which influence corporate social contribution activity, the corporate credibility, the price premium and the persistent purchase intention. SPSS 21.0 and Lisrel 8.7 were used to analyze the collected data and to identify the influence relationships. The findings of this paper are as follows: First, the corporate social contribution activity(eco-friendly product production, fair trade) did significant effect on the corporate credibility and the price premium. Second, the intention to pay premium price had affected the intention of persistent purchasing but corporate credibility had affected the intention of persistent purchasing through the intention to pay premium price. Third, the difference in preception of men and woman about the corporate social contribution activity. Among the corporate social contribution activity, women's perception of the relationship between volunteer activity and fair trade on corporate reliability was higher than that of men. Fourth, among the corporate social contribution activity, women's perception of the relationship between volunteer activity and donation activity on the intention of price premium was higher than that of men.

• The Journal of the Korea Contents Association
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• v.21 no.4
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• pp.645-657
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• 2021

Project-based learning (PBL) encourages self-autonomy and connects learning and real-life skills in the learning process. The purpose of the current study is to investigate students' life skills and self-regulated learning strategies in a PBL curriculum in order to examine how the proposed benefits of PBL are manifested in students' self-awareness of their learning process. Twenty-three students in a university in Korea participated in a 3-credit, 4-week, intensive PBL course for English majors. During the PBL course, students were asked to self-assess their life skills related to time management, cooperation, standard of work, and participation three times. In addition to the self-assessment, students kept reflection journals to keep track of their use of self-regulated learning strategies and progress which were also submitted three times. Based on the analysis of self-assessment and self-reflection, the results showed that students' perception of cooperation improved significantly during PBL. Furthermore, it was found that students also progressed through the three phases of self-regulated learning. Implications on suggesting on the use of PBL to encourage the development of life skills and self-regulated learning strategies are provided.

• Economic and Environmental Geology
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• v.56 no.4
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• pp.385-396
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• 2023

The Mesozoic Bansong Group, distributed along the NE-SW thrust fault zone of the Okcheon Fold Belt in the Danyang-Yeongwol-Jeongseon areas, contains important information on the two Mosozoic orogenic cycles in the Koran Peninsula, the Permian-Triassic Songrim Orogeny and the Jurassic Daebo Orogeny. This study aims to review previous studies on the stratigraphy, depositional period, and basin evolution of the Bansong Group and to suggest future research directions. The perspective on the implication of the Bansong Group in the context of the tectonic evolution of the Korean Peninsula is largely divided into two points of view. The traditional view assumes that it was deposited as a product of the post-collisional Songrim Orogeny and then subsequently deformed by the Daebo Orogeny. This interpretation is based on the stratigraphic, paleontologic, and structural geologic research carried out in the Danyang Coalfield area. On the other hand, recent research regards the Bansong Group as a product of syn-orogenic sedimentation during the Daebo Orogeny. This alternative view is based on the zircon U-Pb ages of pyroclastic rocks distributed in the Yeongwol area and their structural position. However, both models cannot comprehensively explain the paleontological and geochronological data derived from Bansong Group sediments. This suggests the need for a new basin evolution model integrated from multidisciplinary data obtained through sedimentology, structural geology, geochronology, petrology, and geochemistry studies.

• KIPS Transactions on Software and Data Engineering
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• v.12 no.4
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• pp.159-172
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• 2023

In general, social problem-solving research aims to create important social value by offering meaningful answers to various social pending issues using scientific technologies. Not surprisingly, however, although numerous and extensive research attempts have been made to alleviate the social problems and issues in nation-wide, we still have many important social challenges and works to be done. In order to facilitate the entire process of the social problem-solving research and maximize its efficacy, it is vital to clearly identify and grasp the important and pressing problems to be focused upon. It is understandable for the problem discovery step to be drastically improved if current social issues can be automatically identified from existing R&D resources such as technical reports and articles. This paper introduces a comprehensive dataset which is essential to build a machine learning model for automatically detecting the social problems and solutions in various national research reports. Initially, we collected a total of 700 research reports regarding social problems and issues. Through intensive annotation process, we built totally 24,022 sentences each of which possesses its own category or label closely related to social problem-solving such as problems, purposes, solutions, effects and so on. Furthermore, we implemented four sentence classification models based on various neural language models and conducted a series of performance experiments using our dataset. As a result of the experiment, the model fine-tuned to the KLUE-BERT pre-trained language model showed the best performance with an accuracy of 75.853% and an F1 score of 63.503%.

• Elastomers and Composites
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• v.37 no.4
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• pp.244-257
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• 2002

A thermotropic liquid crystalline polymer(TLCP) which has flexible butylene/hexylene spacers in the main chain and a triad aromatic ester type mesogenic unit containing a naphthyl group was prepared by solution polycondensation. The in-situ composites based on poly(ethylene 2,6-naphthalate) (PEN) and a thermotropic liquid crystalline polymer(TLCP) were prepared and melt spun at different TLCP contents and different draw ratios to produce monofilaments. Blends of the TLCP with PEN were investigated in terms of thermal, mechanical properties and morphology. The TLCP synthesized showed nematic mesophasic behavior and its transition temperature to isotropic melt from mesophase was 249℃. The blends showed well dispersed TLCP phases in the PEN matrix without macroscopic phase separation. Inclusion of TLCP in the blends decreased the cold crystallization temperature of PEN in the blend, therefore, the TLCP acts as a nucleating agent in the blend and showed good interfacial adhesion between the dispersed LCP phases and PEN matrix with domain sizes 40~50 nm in diameter and well developed fibrillation in the monofilaments. The TLCP acted effectively as a reinforcing material in the PEN matrix at the 10wt% level, it led to an increase of initial modulus up to 270% and tensile strength by 235%, while the elongation rate increasing with higher draw ratios.

• Asia Marketing Journal
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• v.10 no.2
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• pp.99-123
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• 2008

Consumer satisfaction/dissatisfaction is key determinant of brand loyalty and store patronage behavior. But the results of many customer satisfaction surveys implemented by department stores show that consumer satisfactions do not predict the actual patronage behaviors well. The main reason of these surprising results would be that the consumer satisfaction indexes do not include some important determinants of consumer satisfaction. Many customer satisfaction surveys mainly focus on the evaluation of functional benefits including product assortments, merchandise prices and locational convenience. Recent studies indicate that emotional/hedonic benefits strongly influence the consumer satisfaction, intention to repurchase and intention to revisit. Our study suggests that both functional values and hedonic values should be included in developing the index of consumer satisfactions. The purpose of our study is to investigate the relationship between shopping value and consumer satisfaction, and actual patronage behavior. Shopping values is defined as the difference between total benefits and total shopping costs. Total benefits include the dimensions of product quality, service quality, and hedonic benefits. Total costs are classified as the monetary costs and non-monetary cost. The conceptual framework developed for this empirical study is as follows.

• The Journal of the Acoustical Society of Korea
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• v.43 no.3
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• pp.293-304
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• 2024

In this paper, efficient and reliable methodologies for conducting sea trials to evaluate the performance of hull-mounted sonar systems is discussed. These systems undergo performance verification during ship construction via sea trials. However, the evaluation procedures often lack detailed consideration of variabilities in detection performance due to seabed topography, seasonal factors. To resolve this issue, temperature and salinity structure data were collected from 1967 to 2022 using ARGO floats and ocean observers data. The paper proposes an efficient and reliable sea trial method incorporating Bellhop modeling. Furthermore, a machine learning model applying a Physics-Informed Neural Networks was developed using the acquired data. This model predicts the sound speed profile at specific points within the sea trial area, reflecting seasonal elements of performance evaluation. In this study, we predicted the seasonal variations in sound speed structure during sea trial operations at a specific location within the trial area. We then proposed a strategy to account for the variability in detection performance caused by seasonal factors, using results from Bellhop modeling.

• Journal of the Mineralogical Society of Korea
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• v.22 no.4
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• pp.359-370
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• 2009

Arsenic and heavy metals leached out as a result of oxidation of tailings exposed to the surface pose a serious environmental contamination of mine areas. This study investigated how arsenic behavior is controlled by a variety of processes, such as oxidation of sulfides and formation or alteration of secondary minerals, based on mineralogical methods. The study was carried out using the tailing samples obtained from Nakdong mine located in Jeongseongun, Gangwondo. After separating magnetic and non-magnetic minerals using pretreated tailing samples, each mineral sample was classified according to their colors and metallic lusters observed by the stereoscopic microscope. Subsequently, the mineralogical properties were determined using various instrumental analyses, such as x-ray diffractometer (XRD), energy dispersive spectroscopy (EDS), and electron probe micro analyzer (EPMA). The literature review confirmed that various ore minerals were identified in the Nakdong ore deposits. In this study, however, there were observed a few original ore minerals as well as secondary and/or tertiary minerals newly formed as a result of weathering including oxidation. In particular, we did not recognize pyrrhotite which has been known to originally exist in a large abundance, but peculiarly colloform-type iron (oxy)hydroxides were identified, which indicates most of pyrrhotite has been altered by rapid weathering due to its large reactivity. In addition, a secondary scorodites filling the fissure of weathered primary arsenopyrites were identified, and it is speculated that arsenic is immobilized through such a alteration reaction. Also, we observed tertiary iron (oxy)hydroxides were formed as a result of re-alteration of secondary jarosites, and it suggests that the environment of tailing has been changed to high pH from low pH condition which was initiated and developed by oxidation reactions of diverse primary ore minerals. The environmental change is mainly attributed to interactions between secondary minerals and parental rocks around the mine. As a result, not only was the stability of secondary minerals declined, but tertiary minerals were newly formed. As such a process goes through, arsenic which was immobilized is likely to re-dissolve and disperse into surrounding environments.

• Journal of Korean Philosophical Society
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• v.145
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• pp.167-194
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• 2018

According to the result of 2017 youth statistics, the first rank of the death cause of Korean youth is suicide for nine years. The recent study on factors affecting juvenile suicide presents: family factors; character and psychological factors; mental disease factors; suicide-triggering factors; school factors; and protection factors; and so on. What is required to the youth who are vulnerable to the confusion of identity and the adjustment of emotion or impulse is not only drug treatment or mental therapy but also the support of family or society where adolescents are encouraged to be introspective and form their identity in a healthy approach in the diverse humanistic philosophical dimension. This study is going to pay attention to the aesthetic existence of Kierkegaard who provided the foundation of human existential identity centered on three stages of existence. For this purpose, we attempt to search for the philosophical basis for the understanding of juvenile identity centered on the analysis of Kierkegaard's Either / Or Volume I (Entweder - Oder Teil I). Especially, we are going to attempt the understanding of aesthetics of youth through the analysis of three stages of desire (Begierde) suggested in Chapter 2 of this book. Herewith he suggests aesthetic existence through 'desire', and aesthetic existence as the desire again through three stages of 'dreaming ($tr{\ddot{a}}umend$)' desire, 'searching (suchend)' desire, and 'desiring (begehrend)' desire. Based on this analysis of three stages, we plan to graft the roots of sociological factors presented as the cause of youth's suicide onto the analysis of existential philosophy. Through this, we attempt to grope for the diagnostic and healing discourse which Kierkegaard's existential analysis can present in the formation and recognition of youth identity and disclose a factor of the emotion or the disorder of impulse adjustment as well as depression suggested as the main contributing factor of youth's suicide and search for philosophical discourse for the prevention of juvenile suicide.