• Korean Journal of Heritage: History & Science
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• v.49 no.4
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• pp.156-179
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• 2016

Yatsushiro Shrine on the island of Kamishima located in Ise Bay, Japan, contains many cultural artifacts with ancient mirrors in significant numbers. Also included among the artifacts are horse gags and reins that are clearly of the same lineage as the horse harnesses from the unified Shilla era and Goryeo era in Korean history. Type classification and position establishment were carried out on the horse reins kept in the Yatsushiro shrine, including items such as those mentioned previously. Type A horse harness can be classified into 3 types. Based on this classification scheme, the harness type in the Yatsushiro shrine was found to belong to the most recent period. The blacksmith workshop that made the harness was producing iron wares and bronze wares, and it possessed metal forging and metal casting technologies. Note, however, that it was primarily a workshop where iron wares were made. The parts that were visible from the outside when the harness was attached were made from composite bronze, and the reins and bridle linkage were made from iron. Such integration of bronze ware production techniques and iron ware production techniques was an attempt at enhancing the practicality and embellishments on the harness.

• Explosives and Blasting
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• v.37 no.3
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• pp.34-42
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• 2019

An electronic initiation system that can support various types of field blasting works has been developed and put into practice. The newly developed equipment called Hanwha Electronic Blasting System (HEBS) II has three basic operation modes of scanning, logging, and tagging, among which the blaster can choose the most suitable one for the specific site conditions. In the present study, the work efficiency of the system in the scanning, logging and tagging modes was compared with that of the previous non-electric detonator. The results were estimated based on the aspects of the ground vibration, fragmentation, and digging time. It was found that the ground vibration, fragmentation, and digging time of the new system were decreased by about 45%, 31%, and 13%, respectively, with respect to the previous system. This result confirms that the new system is very efficient in the scanning, logging and tagging modes under the field conditions.

• Journal of the Korea Convergence Society
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• v.12 no.3
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• pp.237-245
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• 2021

The puropose of this study is to propose an effective diction training techniqe that conductors can use in choral communication. In chorus, the phonology of the language used in the lyrics influences the diction. Therefore, Korean lyrics must be pronounced according to Korean phonology. In verbal language, accuracy of pronunciation is important, but when expressing lyrics in a song, both vocalization and diction are important. In particular, chorus is sung by many people, so if the diction is not accurate, the lyrics will not be delivered properly. In this study, the dictions of lyrics frequently used in actual Korean choral songs were systematically analyzed according to Korean phonological rules. As a result of the study, the main factor that makes choral diction difficult is the phenomenon of phonological fluctuations in Korean. In particular, phonological fluctuations often occurred when pronouncing the final sound and when consonants and consonants were combined. A follow-up study intends to contribute to the development of choral communication by presenting a systematic choral diction based on Korean phonology.

• Journal of Advanced Navigation Technology
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• v.22 no.2
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• pp.96-104
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• 2018

NOTAM is an announcement that is distributed to flight attendants with status information related to aviation. ICAO, the International Civilian Aviation Organization, recommends that a NOTAM service be provided for the SBAS service in order to use the SBAS signal-based access procedure. To comply with ICAO recommendation, KASS must provide NOTAM service to all aircraft landing using SBAS signal in order to provide APV-I SoL service. Therefore, it is necessary to develop KASS NOTAM system to provide KASS NOTAM service. In this paper, we analyzed the regulations related to NOTAM in Korea and abroad and analyzed the present state of NOTAM service in Korea. Based on this, we propose a method of providing KASS NOTAM service. We analyzed the NOTAM system of WAAS in the US and EGNOS in Europe and analyzed the main functional requirements of the KASS NOTAM system.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.30 no.6
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• pp.1167-1187
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• 2020

We are facing the situation where cyber threats such as hacking, malware, data leakage, and theft, become an important issue in the perspective of personal daily life, business, and national security. Although various efforts are being made to response to the cyber threats in the national and industrial sectors, the problems such as the industry-academia skill-gap, shortage of cybersecurity professionals are still serious. Thus, in order to overcome the skill-gap and shortage problems, we propose a Cybersecurity technical response Job Competency(CtrJC) framework by adopting the concept of cybersecurity personnel's job competency. As a sample use-case study, we implement the CtrJC against to personals who are charged in realtime cybersecurity response, which is an important job at the national and organization level, and verify the our framework's effects. We implement a sample model, which is a CtrJC against to realtime cyber threats (We call it as CtrJC-R), and study the verification and validation of the implemented model.

• Journal of the Korean Geotechnical Society
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• v.38 no.1
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• pp.5-15
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• 2022

Due to the Pohang earthquakes in 2017, concerns are increasing that Korea is no longer safe from liquefaction, and needs the research to take proper measures for liquefaction. Liquefaction is defined as the loss of shear strength of the ground. In order to solve this problem, many studies, such as composing a liquefaction hazard map using Liquefaction Potential Index (LPI), have been conducted. However, domestic researches on the comparative analysis of liquefaction prediction results are not sufficient. Therefore, in this study, liquefaction hazard maps were composed using the standard penetration test results, shear wave velocity values, and cone penetration test results. After that, the precision was determined by comparing the calculated LPI using the geotechnical information and predicted LPI via spatial interpolation target. Based on the analysis results, the predicted LPI value using geotechnical information is more precise than using calculated LPI value.

• Journal of Convergence for Information Technology
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• v.12 no.1
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• pp.91-98
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• 2022

Currently, new terms are overflowing with the development of technology from VR, AR, XR to Metaverse. Every time a term is generated in this way, society considers it a new technology and tends to use it enthusiastically, but there is confusion in correctly understanding and utilizing the category of the term. He would like to discuss the virtual studio that played an important role in the development of broadcasting CG (Computer Graphics) technology in the 1990s, and talk about the introduction of new terms in the past and how to use them. Therefore, this paper examines the gap between chaos and upright each time a term is generated based on the time when the virtual studio is introduced, and analyzes the utilization of new technology from the past through the introduction machine manufacturing case. By examining the past technological development processes expressed by remediation, this paper argues that the current situation is not a new technology but an expression of a new term, that is, a phenomenon that appears during the gradual development of technology. It is something to do.

• The Journal of the Korea Contents Association
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• v.22 no.10
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• pp.414-425
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• 2022

This study aims to develop a training program to strengthen the competency of peer tutors at A University and to establish a sustainable system. It was conducted in the process of developing, operating, evaluating, modifying, and supplementing the curriculum for about two years from January 2019 to February 2022. In-depth interviews, surveys, literature reviews, and expert surveys were used as research methods. The research results can be summarized as follows. First, by combining in-depth interviews and ranking of educational needs of peer tutors' competencies, the researchers designed peer tutors training curriculum and certification system, and these were certified by conducting expert surveys. Second, from March 2020 to the end of February 2022, peer tutor training and certification system were operated, and as a result of a satisfaction survey of students, 4.33 points on average in 2020 and 4.61 points on average in 21, indicating high satisfaction. Finally, the implications were discussed for establishing peer tutor training programs and system in universities.

• Journal of the Korea Convergence Society
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• v.12 no.5
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• pp.109-119
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• 2021

With the coronavirus outbreak in China at the end of 2019, a global pandemic, most universities held non-face-to-face classes in the spring of 2020. One of the difficulties experienced by universities that abruptly conducted non-face-to-face education was management of the quality of education. Therefore, this study compared and analyzed how the existing indicators used to measure the quality of education in a non-face-to-face education environment changed. The results of the survey on the degree of adaptation and satisfaction of the lecture held at Handong University in the spring of 2020 were compared and analyzed with the previous data of the same lecturer. Overall, both class adaptation and satisfaction scores were found to be similar or slightly higher than before. Compared to lectures conducted by uploading recorded lectures, lectures conducted in real time had higher scores on all satisfaction survey questions. There was no significant change in satisfaction depending on the number of participants and the teacher's previous online lecture experience.

• Korean Association of Arts Management
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• no.55
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• pp.155-184
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• 2020

This paper aims to reveal the merits and demerits of the exhibition by examining whether the subject intended at the exhibition planning stage was finally persuasively implemented throughout the work and exhibition, along with the theoretical verification of the way the exhibition dealing with the history of the women's independence movement from the psychoanalytic feminist point of view. To this end, a more fundamental approach to the theme of the Women's Independence Movement calls for the search for a feminine language that can capture women's unique identity rather than a masculine language such as the existing independence movement exhibition method, and for finding such feminine language, a feminine speech, art and poetic language, maternal genealogy, and women's solidarity are presented, along with theories. This paper, which expounds the role of art works in exhibitions dealing with history through theoretical verification of actual exhibition cases, has significance as communication between theory and field.