• Geomechanics and Engineering
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• v.21 no.6
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• pp.503-511
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• 2020

This study evaluated the side resistance of drilled shafts socketed into rock sections. Commonly used analysis methods for side resistance of piles in rocks are examined by utilizing a large number of load test data. The analysis of the unit side resistance of pile foundations embedded into rock sections is based on an empirical coefficient (α) and the uniaxial compressive strength (q_u) or its root (${\sqrt{q_u}}$). The Davisson criterion was used to interpret the resistance capacity from the load test results to acquire the computed relationships. The α-${\sqrt{q_u}}$ relationship is proven to be reliable in the prediction of friction resistance. This study further analyzed the relationship by including the effect of rock quality designation (RQD) on the results. Analysis results showed that the analysis model of α-${\sqrt{q_u}}$-RQD provided better prediction and reliability considering the RQD classification. Based on these analyses, the side resistance of drilled shafts socked into rocks is provided with statistical data to support the analysis.

• Journal of Agricultural Extension & Community Development
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• v.18 no.4
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• pp.793-824
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• 2011

This study is to explore implications for sustainable development of Yangdong Village in Gyeongju through identifying effect of its designation as a World Cultural Heritage on residents' quality of life. The following are the findings achieved by empirical analysis. First, eight valuable factors of placeness were identified through factor analysis, about which residents were especially conscious in terms of "living condition", "cultural environment", "economic QOL", "natural environment conservation", "sense of community", "cooperative facilities", "control over increasing population", "transport environment". Second, the importance -satisfaction scores of identified 8 factors were found very high in importance showing relatively low level of low level of satisfaction. Especially, what caused residents's low QOL was economic status-concerned factor showing the lowest QOL index, and other factors such as cooperative facilities and transport environment negatively impacted on resident's QOL as well. Also, it was revealed that residents had a positive attitude toward entering of their village into UNESCO world heritage sites with hope that it would improve their economic QOL. Based on these results, implications for sustainability of Yangdong Village and research limitations were discussed, and further research direction was supposed.

• Journal of the Korean Society of Clothing and Textiles
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• v.43 no.5
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• pp.768-777
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• 2019

This study established a lower garment sizing system for elderly men over 65 years of age based on 535 males selected from the 5th Korean Anthropometric survey. The results are as follows. Most elderly men body measurements were smaller for adult males (except for the waist area); however, abdominal obesity has changed to body type. The standard deviation was applied around the average values of waist circumference and hip circumference for the suggestion of a lower garment sizing system for elderly men. The interval between the designation was ${\pm}2.5cm$ with an average waist circumference of 86 cm and ${\pm}2cm$ with an average hip circumference of 92 cm. A total of 13 designation sections were established in consideration of the cover ratio and cover efficiency. The cover ratio in the 13 nominal sections was 77.2%. The segmental distribution rate presented in the results will also be useful for production planning in specific sizes and enable rational production.

• Journal of the Architectural Institute of Korea Planning & Design
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• v.35 no.1
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• pp.63-72
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• 2019

The purpose of this study is that investigated the characteristics of integral planning related factors using the history and culture of Mojiko. It is a small city that has been urbanized after the opening of the port for logistics transportation in the modern period of Japan. As the function of the logistics city, which is the factor of the expansion of the town, declined, Mojiko applied the retro concept to the harbor which has lost its popularity due to the regional characteristics of the city to increase and revitalize local visits. Mojiko has steadily promoted the retro style of landscape and town development over 30 years, focusing on 18 Historical buildings and modern infrastructure. We analyzed characteristics of integrated urban planning include the regulation, landscape institution. Moreover, we suggest the result of the designation process of a core scenery maintenance district and the components of the plan after the designation analysis and provide essential data for revitalizing the field based on the historic city for the cultural establishment and beautiful town in the future. And deliver vital data to reviving the area based on the historical city culture establishment and beautiful town in the future.

• Asia-Pacific Journal of Business
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• v.13 no.2
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• pp.107-122
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• 2022

Purpose - This study aims to develop machine learning models to predict administrative issue designation in KOSDAQ Market using financial data. Design/methodology/approach - Employing four classification techniques including logistic regression, support vector machine, random forest, and gradient boosting to a matched sample of five hundred and thirty-six firms over an eight-year period, the authors develop prediction models and explore the practicality of the models. Findings - The resulting four binary selection models reveal overall satisfactory classification performance in terms of various measures including AUC (area under the receiver operating characteristic curve), accuracy, F1-score, and top quartile lift, while the ensemble models (random forest and gradienct boosting) outperform the others in terms of most measures. Research implications or Originality - Although the assessment of administrative issue potential of firms is critical information to investors and financial institutions, detailed empirical investigation has lagged behind. The current research fills this gap in the literature by proposing parsimonious prediction models based on a few financial variables and validating the applicability of the models.

• Journal of the Korean Society of Clothing and Textiles
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• v.47 no.1
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• pp.73-84
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• 2023

This study aims to identify the current sizing communication issues of menswear on retail websites and to suggest an effective size information presentation method. Based on sales frequency and awareness in the Korean menswear market, 22 brand websites were selected, and size-related information was investigated using 7 types of representative apparel items. The current diverse types of size codes had limitations in delivering actual product size information. Many websites preferred to display garment dimensions rather than basic body measurements, which is the suggested size designation method in Korean Standard. The websites posted fit model photos and customer reviews. However, the body size specifications, which consumers can use as a useful reference, were often omitted. There was also a high uncertainty in product size selection, with only the basic body measurement information listed, and there was a high deviation of garment dimensions within the same basic body measurements. The product size distribution did not match actual Korean body types. Based on the findings, we suggested improved effective sizing communication methods. These methods will contribute to a better online shopping environment for both consumers and retail sellers.

• Journal of the Korean Society of Marine Environment & Safety
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• v.29 no.3
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• pp.270-280
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• 2023

The creation of marine protected areas is an important aspect of marine ecosystem sustainability. However, South Korea has not achieved its Aichi Biodiversity Target to designate 10% of its sea as marine protected by 2020. Local residents have strong opposition to the designation of protected areas in South Korea; there has been little trust in the government since the 1970s, when residents felt that their property rights were being ignored in favor of creating national parks. Here, we present a case where creation of a marine protected area was led by residents of TongYeong City. The success of a participation income project to remove marine debris in the city seems to be an important factor that led to the designation of the marine protected area. The case of TongYeong City is compared with that of nearby Geoje City, where an ecologically important stream has not been designated as a wetland protection area, although a similar participation income project enrolled the city's residents. The comparison provides a tentative assessment of the conditions needed to increase trust among residents. The results suggest that, if the projects are well-designed and well-managed, participation income projects to remove marine debris can be effective in building trust among stakeholders in potential marine protected areas.

• Journal of Korean Society of Rural Planning
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• v.29 no.2
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• pp.55-65
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• 2023

This study was performed with 473 dwellers living in the cities, to study how purchasing intention was affected by the Korea important agricultural heritage system designation on Changwon sweet persimmon farming. This study identified the relationship between consumption value and purchase intention through Sheth's theory of consumption value. Functional, social, emotional, epistemic and symbolic values were all found to have a positive (+) effect on purchase intention, and among them, symbolic value properties were found to have the greatest impact. This study presents an important implication that emphasizing symbolism is most effective when establishing policies in the direction of promoting persimmon consumption in the Changwon area designated as Korea important agricultural heritage system.

• Architectural research
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• v.26 no.3
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• pp.63-72
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• 2024

Due to budgetary constraints, national landmarks symbolic of country's power and cultural stature face significant limitations in their creation. Within the current total project cost management system, there are considerable restrictions on constructing cultural facilities with various forms and designs, and there exists a societal need for a design-first administrative system for public buildings that demand artistry and symbolism. This study explores the potential and limitations of applying exceptions to the total project cost management system through the designation of representative artistic architecture. It discusses directions for the implementation of government-level systems. To this end, a literature review on budget management and national project management was conducted, and an analysis of related policy cases both do-mestically and internationally was performed to select applicable examples and consider their implications for policy utilization within the domestic context. The results discuss the necessity of public art building construction, the issues with construction budgets, and the in-volvement of world-class architects. Analytical implications include the need for realistic budget setting for construction projects, establishing clear promotion criteria, and creating a phased process and expert evaluation panel.

• (The) Research of the performance art and culture
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• no.41
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• pp.257-284
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• 2020

Goseong Ogwangdae started academic research in the late 1950s and was designated as a national intangible cultural asset in 1964. From the time of the academic survey to the time of designation, it was recorded as using paper masks, but when the recording image was filmed in 1965, it was already changed to wooden masks. In 1960, before being designated as an intangible cultural asset, the number of masks, which was 9 points, gradually increased to 19 points in 1964. It is necessarily included in the leper, Chorani, Malttuki, Cheongbo-Yangyang, Halmi, and Jemilju, but the character of the yangban is not yet clearly differentiated. Hwangbongsa and Sangju appeared as bare faces, and consumption, milling, Cheongbo-Yangyang are used together with Bibi and inspiration. It can be guessed that Bibi was not the appearance of a foreign object with horns as it is now, considering that Bibi and Madangsoi were used together. Since 1965, shortly after the designation, the whole of the Goseong Ogwangdae mask has been changed to a wooden mask. All the characters except for resident, courtyard, and top-of-the-line are wearing masks. Bibi, Hongbaek, and service masks have never appeared until 1964. The Yangban was changed to the closing ceremony with six people in the order of Won-Yangban, Baekje, Heukje, Cheongje, Hongbaek, and Jonggadoryong. Starting in 1969, the mask enters the stable period where the kind is the same as the present. Bibi-Yangban uses both the Won-Yangban and the Jemilju uses the Somu, but all other characters use the individual mask to use a total of 18 masks. The Yangbans are clearly differentiated, and a total of seven Yangban appear. The reason why the change in the type of mask and the expression of material is so large is that the first generation of mask makers died and the tradition of mask production was cut off, but there is also a cause of the extreme change in the environment of the drama that the performers who joined after the designation had to face. Also, it is closely related to the change of the times when the meaning and weight of masking in masking has changed. At that time, the performers were not so tied to the current concept of 'original form' that they preserved the appearance of the designated time. Originally, Goseong Ogwangdae was centered on improvisation dance, not the formalized dance as it is now, and there was a certain fluid aspect in the retelling, so it was flexible in the use of masks even before the designation of cultural assets. Strict rules did not apply in the details, as it was a self-sufficient play by the performers, not an offer event. The form and contents of this fluid play are changed to preparation for the performance while preparing for the folk art contest. As the subject of the contest in self-sufficient play, dance, costumes, and props became more and more colorful as well as dancing, costumes, and props. As a result, participation in the contest brought about changes in the overall performance and changed the mask, which was accepted within the preservation society.