• Korean Journal of Heritage: History & Science
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• v.57 no.3
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• pp.38-54
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• 2024

This paper examines how noblewomen during the Joseon Dynasty perceived incense and herbs, focusing on the 『Gyuhap Chongseo(閨閤叢書)』 a compendium edited by Yi Bingheogak(李憑虛閣, 1759~1824). The 『Gyuhap Chongseo』 is a classified collection of knowledge deemed essential for managing a noble household. By analyzing the content related to incense and herbs focused on 「Bongim Cheok」. This study reveals Yi Bingheogak's practical and realistic understanding of incense and herbs. For Yi, incense and herbs transcended mere cosmetic applications and luxury and served as indispensable tools in health and hygiene and domestic skills for traditional household management. While it may be challenging to generalize the perception of noblewomen solely based on the 『Gyuhap Chongseo』 the consistent transcription and transmission of the text suggest it resonated with the noblewomen's sentiments. With limited records left by noblewomen themselves, this study primarily explores Yi Bingheogak's perspective, who provided detailed knowledge and applications of incense and herbs across the compendium's sections. This reflects Yi's intention to broaden women's knowledge and cultural literacy, and contribute to improved quality of life through practical knowledge. This study demonstrates Yi's recognition of incense and herbs as vital commodities for the operation of domestic life, and illustrates how noblewomen of the Joseon Dynasty actively contributed to society and the household through knowledge and practical activities. The use of incense and herbs for beauty and domestic knowledge in various fields of traditional knowledge underscores a comprehensive understanding of noblewomen's perception and use of incense and herbs during the Joseon Dynasty.

• The Journal of the Convergence on Culture Technology
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• v.10 no.4
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• pp.331-337
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• 2024

The laws and regulations governing the operation of government committees in Korea provide for a system called exclusion. Exclusion is a system that excludes a member of a committee from deliberating or voting on a matter or agenda without having to go through a special procedure before deliberating or voting on the matter or agenda. This is because exclusion of a member from deliberation and voting is not only essential for the protection of the interests of the parties to the issue or matter and the peaceful resolution of disputes, but is also a very important value for the trust in the fairness of the process. However, in practice, it is not easy to determine that a member who has a reason for disqualification is naturally incapable of executing the duties of the matter or agenda just because he or she has a reason for disqualification. Prior to the overhaul of the disqualification rules for committee members in the statutes, it is necessary to eliminate the disqualification rules that are virtually dead in advance or to revise the rules that are difficult to determine without interpretation, contrary to the intention of the disqualification rules that are codified in the law. Therefore, this study analyzed the disqualification rules of nine committees in the domestic statutes (laws and enforcement regulations) and categorized the disqualification rules. We hope to contribute to the preparation of future legislative proposals to improve the rules on the exclusion of commissioner.

• Korean Journal of Remote Sensing
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• v.40 no.4
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• pp.397-418
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• 2024

The Land Surface Temperature (LST) is a crucial parameter in identifying drought. It is essential to identify how LST can increase its accuracy, particularly in mountainous and hill areas. Increasing the LST accuracy can be achieved by applying early data processing in the correction phase, specifically in the context of topographic correction on the Lambertian model. Empirical evidence has demonstrated that this particular stage effectively enhances the process of identifying objects, especially within areas that lack direct illumination. Therefore, this research aims to examine the application of the Lambertian model in estimating LST using the Multi-Channel Method (MCM) across various physiographic regions. Lambertian model is a method that utilizes Lambertian reflectance and specifically addresses the radiance value obtained from Sun-Canopy-Sensor(SCS) and Cosine Correction measurements. Applying topographical adjustment to the LST outcome results in a notable augmentation in the dispersion of LST values. Nevertheless, the area physiography is also significant as the plains terrain tends to have an extreme LST value of ≥ 350 K. In mountainous and hilly terrains, the LST value often falls within the range of 310-325 K. The absence of topographic correction in LST results in varying values: 22 K for the plains area, 12-21 K for hilly and mountainous terrain, and 7-9 K for both plains and mountainous terrains. Furthermore, validation results indicate that employing the Lambertian model with SCS and Cosine Correction methods yields superior outcomes compared to processing without the Lambertian model, particularly in hilly and mountainous terrain. Conversely, in plain areas, the Lambertian model's application proves suboptimal. Additionally, the relationship between physiography and LST derived using the Lambertian model shows a high average R² value of 0.99. The lowest errors(K) and root mean square error values, approximately ±2 K and 0.54, respectively, were achieved using the Lambertian model with the SCS method. Based on the findings, this research concluded that the Lambertian model could increase LST values. These corrected values are often higher than the LST values obtained without the Lambertian model.

• The Journal of the Convergence on Culture Technology
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• v.10 no.4
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• pp.467-472
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• 2024

This paper examines the history of karate, its utilization as military training, and its value as a national defense sport. Originating from Okinawa, karate was introduced into Japanese military training in the modern era and spread worldwide. During World War II, the Japanese military intensified karate training for close-quarters combat. Post-war, karate was introduced to Western society through the U.S. military presence in Japan. In contemporary militaries, various martial arts, including karate, are utilized in training programs such as the U.S. Marine Corps Martial Arts Program (MCMAP) and the Israeli military's Krav Maga. These programs integrate techniques from karate, judo, boxing, and other martial arts to create systems optimized for real combat. In military education, karate enhances individual physical and mental capabilities and improves unit combat effectiveness. Rigorous training develops physical fitness, mental resilience, and practical skills for close-quarters combat. Group training fosters camaraderie and unit cohesion. However, due to the changing nature of modern warfare, it is necessary to reconsider the proportion and methods of martial arts training in military education. With the advancement of high-tech weaponry, team operations have become more critical than individual combat skills. Rather than applying traditional karate techniques unchanged, it is essential to modify and develop them to suit modern warfare. Nevertheless, the value of martial arts training, including karate, remains significant in cultivating key soldier qualities such as physical strength, indomitable spirit, and camaraderie. It is anticipated that militaries worldwide will continue to evolve their martial arts training systems in line with changing times.

• Journal of Christian Education in Korea
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• v.76
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• pp.193-212
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• 2023

Purpose of Study: This study is a qualitative study to understand the essential experiences of missionary children related to national identity. Research Contents and Methods: Ten children of missionaries who were re-entered to their home countries to receive university education were selected as participants for the study. Two preliminary surveys (2016, 2019) were conducted to determine the direction and subject of the study. Two in-depth interviews and one non-face-to-face survey were conducted with the study participants. Based on preliminary research and prior research, the questionnaire explored identity experiences by discovering four areas: language, culture, group, and place. In addition, rich research results were derived with schematic interview data, surveys using Phinney's 1992 national identity test tool, non-face-to-face surveys with parents of study participants, and self-report identity graphs. Conclusions and suggestions: As a result of the study, missionary kids as TCKs were able to know their names in identity confusion by sequentially experiencing international mobility, separation, and discrepancy in four areas. After all, TCK seems to suffer from identity difficulties because it remains primarily 'minority' in relation to the four domains. This study is meaningful in that it specifically revealed the support needed for TCK missionary children with multicultural background by revealing the importance of providing visiting experience in Korea and schoo(herd)l experience before entering Korean universities to re-adaptate TCK.

• Journal of Korean Society of Disaster and Security
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• v.17 no.2
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• pp.1-11
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• 2024

Most reservoirs in South Korea are earthen dams, mainly because they are cost-effective and easy to construct. However, earthen dams are highly vulnerable to seepage and overtopping, making them prone to sudden failure during excessive flooding. Such sudden failures can lead to a rapid increase in flood discharge, causing significant damage to downstream rivers and inhabited areas. This study investigates the effect of riprap placement on the slopes of earthen dams in delaying dam failure. Delaying the failure time is crucial as it allows more time for evacuation, significantly reducing potential casualties, which is essential from a disaster response perspective. Hydraulic experiments were conducted in a straight channel, using two different sizes of riprap for protection. Unlike previous studies, these experiments were performed under unsteady flow conditions to reflect the impact of rising water levels inside the dam. The target dam for the study was a cofferdam installed in a diversion tunnel. Experimental results indicated that the presence of riprap protection effectively prevented slope failure under the tested conditions. Without riprap protection, increasing the size of the riprap delayed the failure time. This delay can reduce peak discharge, mitigating damage downstream of the dam. Furthermore, these findings can serve as critical reference material for establishing emergency action plans (EAP) for reservoir failure.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.44 no.3
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• pp.315-328
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• 2024

Precipitation is a crucial meteorological variable widely used as essential input data in most hydrological models. However, due to climate change, there is an escalating precipitation variability. Trend analysis plays an important role in planning and operating water resources systems. As recently developed, Innovative Polygon Trend Analysis (IPTA) is useful in identifying and and analyzing the trends of hydrologic variables. In this study, the IPTA was applied to monthly precipitation data obtained from 13 meteorological observatories in Jeolla province, along with synthesized precipitation data according to Shared Socioeconomic Pathways (SSP) scenarios. The trend results were compared those obtained from the Mann-Kendall test and the Sen's slope estimation which are generally used in practice. The results revealed monthly precipitations from February to July and November had increasing trends, and monthly precipitation in October had a decreasing trend. IPTA, Mann-Kendall test, and Sen's slope estimation detected trends in 75.00 %, 5.13 %, and 5.13 % of 156(13 stations × 12 months) time series of monthly precipitation, respectively, which indicates that the IPTA is more sensitive in trend detection compared to the Mann-Kendall test and Sen's slope estimation.

• Journal of Korean Home Economics Education Association
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• v.35 no.3
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• pp.169-190
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• 2023

Uzbekistan, one of the top five cotton-producing countries in the world, primarily focuses its textile and fashion industry on raw cotton exports and the sewing industry. For Uzbekistan to achieve high added value, it is essential for the textile and fashion industry, which is currently at the CMT(cut, make, and trim) stage, to upgrade to OEM (original equipment manufacturing), ODM (original design manufacturing), and OBM (original brand manufacturing). South Korea recognizes Uzbekistan as a potential manufacturing base and trading partner and has invested Official Development Assistance (ODA) funds for the development of Uzbekistan's textiles and apparel sector. This study aims to evaluate Uzbekistan's fashion higher education in the context of global competitiveness and measure the need and prospects for education ODA from the Korean government in this field. Comprehensive investigations, including surveys of academics, industry experts, and government officials, in-depth interviews, and focus group interviews, were conducted to understand Uzbekistan's current fashion education environment. According to the research results, despite the textile and fashion sectors playing a pivotal role in the Uzbek economy, there is room for improvement in the curricula and teaching and learning methods of the fashion higher education programs. This study holds significance as foundational data for establishing education ODA strategies.

• The Journal of Bigdata
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• v.8 no.2
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• pp.165-175
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• 2023

LNG is a representative imported cargo at Incheon Port and has a relatively high contribution to the increase/decrease in overall cargo volume at Incheon Port. In addition, in the view point of nationwide, LNG is the one of the most important key resource to supply the gas and generate electricity. Thus, it is very essential to identify the factors that have impact on the demand fluctuation and build the appropriate forecasting model, which present the basic information to make balance between supply and demand of LNG and establish the plan for power generation. In this study, different to previous research based on macroscopic annual data, the weekly demand of LNG is converted from the cargo volume unloaded by LNG carriers. We have identified the periodicity and correlations among internal and external factors of demand variability. We have identified the input factors for predicting the LNG demand such as seasonality of weekly cargo volume, the peak power demand, and the reserved capacity of power supply. In addition, in order to predict LNG demand, considering the characteristics of the data, time series prediction with weekly LNG cargo volume as a dependent variable and prediction through an artificial neural network model were made, the suitability of the predictions was verified, and the optimal model was established through error comparison between performance and estimates.

• Journal of the Korean Society of Environmental Restoration Technology
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• v.26 no.4
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• pp.51-59
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• 2023

Despite countries' efforts to reduce carbon emissions, carbon emissions have increased in recent decades along with energy use, of which building energy uses account for a large proportion. Energy savings are essential as a strategy to reduce carbon emissions in existing buildings. The field experiment on the roof of a building located in Seoul was designed to measure the temperature reduction effect of green roof with rainwater storage tank to reduce cooling energy consumption in summer. The results showed that the mean mean surface temperature under the green roof was 14.77 degrees lower than that of the non-green roof from 13:00 P.M. to 15:00 P.M., which would have a great effect on reducing cooling energy. From 01:00 A.M. to 03:00 A.M., the effect was 3.36 degrees, showing that tropical nights could be improved. The temperature reduction effect due to the rainwater storage system increased by 1.45 degrees during the day and decreased by 0.63 degrees at night. The storage system can be strategically utilized to reduce carbon emissions during the week when cooling energy increases significantly.