NO의 선택적 촉매 환원반응을 위한 V₂O₅/MPTiO₂ 촉매에 미치는 조촉매 효과

전세원,김도희,이황호 한국공업화학회 2021 한국공업화학회 연구논문 초록집 Vol.2021 No.-

Understanding the dynamic behavior of acid sites on TiO₂-supported vanadia catalysts via operando DRIFTS under SCR-relevant conditions

전세원,송인학,이황호,김도희 한국공업화학회 2021 한국공업화학회 연구논문 초록집 Vol.2021 No.0

세계사 교육에 대해 고등학교 현장에서 느끼는 위기

전세원 역사와 교육학회 (구 동국대학교 역사교과서연구소) 2023 역사와 교육 Vol.36 No.-

영산강 상류역 원삼국-삼국시대 취락 연대 재고

전세원 영남고고학회 2017 嶺南考古學 Vol.- No.79

The present paper raises the question about chronology of the settlements in the Upper Younsan River and the problem which originated from imprudent acceptance of 14C dating, differences in perception of beginning of Paddling Techniques and reproduction of the wrong chronology. Therefore I tried a new chronology of settlements in the Upper Youngsan River. The Taemok-ri site was set the standard settlement site and classification was tried. In this research, based on the analysis of ceramic data from about 1,000 pit-houses of the Taemok-ri settlement. The whole ceramic assemblage of the Taemok-ri settlement could be clearly classified into 4 different time units and overall duration of it be 250 years from middle 3th century to late 5th century AD. The phase of Taemok-ri was applied each settlement site in Upper Youngsan River. And through using the absolute dating, each settlement site was dated. According to the more reliable dating value acquired from carbonized seed sand the palaeo-magnetism curves, the settlement of Upper Youngsan River which has been believed to occupy from the 2nd century AD to 6nd century AD could be proposed to occupy from the 4th century AD to 6th century AD. Also the period of the sites occupancy is not so long as previously thought. 본고에서는 원삼국-삼국시대 영산강 상류역 취락유적의 연대설정이 상향 추정되었을 가능성을 제기하고 그러한 원인이 C14연대의 무분별한 수용, 타날기법 도입 시기에 대한 인식의 차이, 잘못된 편년의 반복적인 재생산에 있다고 보았다. 따라서 영산강상류에 한정하여 취락의 편년을 새롭게 시도하였다. 영산강 상류역을 포함한 호남지방 취락 연대의 전제조건이 되는 해남 군곡리패총의 편년, 타날문 옹·발의 출현 과정, 절대연대측정법에 대해 검토하였다. 더불어 담양 태목리유적을 표준유적으로 설정하여 1,000여기의 주거지에서 출토된 토기의 형식분류를 실시하였다. 그 결과 3세기 중엽 이후부터 5세기 후엽까지의 점유기간을 Ⅰ-Ⅳ단계로 설정할 수 있었다. 이를 영산강상류 취락유적에 대입하여 각 유적의 단계를 설정하였으며 절대연대측정자료를 비판적으로 분석하여 취락의 연대를 재추정하였다. 검토결과 영산강 상류역 원삼국-삼국시대 취락유적의 연대 설정은 실제로 4-6세기대에 집중된 유적의 연대가 상향되고, 그 점유시기 또한 실제 보다 길게 설정되어 2-6세기 어느 시점의 유적으로 설정되고 있다고 추정된다.

A Study on Gamification Consumer Perception Analysis Using Big Data

전세원,안윤주,류기환 국제문화기술진흥원 2023 International Journal of Advanced Culture Technolo Vol.11 No.3

The purpose of the study was to analyze consumers' perceptions of gamification. Based on the analyzed data, we would like to provide data by systematically organizing the concept, game elements, and mechanisms of gamification. Recently, gamification can be easily found around medical care, corporate marketing, and education. This study collected keywords from social media portal sites Naver, Daum, and Google from 2018 to 2023 using TEXTOM, a social media analysis tool. In this study, data were analyzed using text mining, semantic network analysis, and CONCOR analysis methods. Based on the collected data, we looked at the relevance and clusters related to gamification. The clusters were divided into a total of four clusters: 'Awareness of Gamification', 'Gamification Program', 'Future Technology of Gamification', and 'Use of Gamification'. Through social media analysis, we want to investigate and identify consumers' perceptions of gamification use, and check market and consumer perceptions to make up for the shortcomings. Through this, we intend to develop a plan to utilize gamification.

Designing the Museum Gamification System

전세원,문석재,류기환 한국인터넷방송통신학회 2022 International Journal of Internet, Broadcasting an Vol.14 No.2

We identified the correlation between museums, gamification, and viewers based on the results of keyword correlation analysis, designing the museum gamification system. By applying gamification to the museum through big data CONCOR analysis, it was found that viewers had fun watching it through direct experiences and experiences. In this study, we propose a system that directly selects the story desired by the viewer and serves the game suitable for the theme of the museum they visited. In addition, the system proposed in this paper organized a story algorithm so that viewers can directly select the difficulty level based on the story and play personalized games. We collected existing museum information and designed to enable games of various stories suitable for the museum's theme, and based on this, it was applied to the museum gamification app. Moreover, in order to further enhance the immersion of museum viewing. We have been designed and applied based on Virtual Reality (VR).

암모니아 선택적 촉매 환원 반응을 위한 V/MPTiO₂ 촉매의 NOx 제거 능력에 미치는 Monoethanolamine 첨가 효과

전세원,김도희,이황호 한국공업화학회 2021 한국공업화학회 연구논문 초록집 Vol.2021 No.-

풍납토성의 범위와 규모

전세원 한국고고학회 2023 한국고고학보 Vol.- No.126

Pungnaptoseong Earthen Wall Fortress has been investigated and studied in many ways for about 25 years, from 1997 to the present day, but the scope of the site could not be clearly grasped as some sections of the fortress walls had been lost. However, due to the accumulation of archaeological findings resuting from excavations that were conducted until recently, it was possible to gain an understanding of the direction of the walls in the lost sections of the West Wall and the East Wall. Accordingly, it has become necessary to reconfirm the scope and size of the earthen rampart. In the case of the West Wall, the scope of investigations and research tended to be limited to the inner side, due to the Olympic Expressway blocking access, but recent investigations have confirmed that the wall expanded further below the Olympic Expressway, and that the lost section of the East Wall remained under the surface. In addition, there is a high possibility that the moat associated with the entire length of the East Wall may still be intact. Therefore, the scope of the West Wall is also likely to expand further in the direction of the Han River, and the scope of the East Wall is also likely to expand further, if the scope of the moat is included. The expansion of the range of earthen rampart has brought about the expansion of the entire scale of the site. Therefore, the previously estimated to length of Pungnaptoseong Fortress, which is 3.5km, needs to be modified.

A Study on User Perception of Tourism Platform Using Big Data

전세원,박성우,안윤주,류기환 한국인터넷방송통신학회 2024 International journal of advanced smart convergenc Vol.13 No.1

The purpose of this study is to analyze user perceptions of tourism platforms through big data. Data were collected from Naver, Daum, and Google as big data analysis channels. Using semantic network analysis with the keyword 'tourism platform,' a total of 29,265 words were collected. The collection period was set for two years, from August 31, 2021, to August 31, 2023. Keywords were analyzed for connected networks using TexTom and Ucinet programs for social network analysis. Keywords perceived by tourism platform users include 'travel,' 'diverse,' 'online,' 'service,' 'tourists,' 'reservation,' 'provision,' and 'region.' CONCOR analysis revealed four groups: 'platform information,' 'tourism information and products,' 'activation strategies for tourism platforms,' and 'tourism destination market.' This study aims to expand and activate services that meet the needs and preferences of users in the tourism field, as well as platforms tailored to the changing market, based on user perception, current status, and trend data on tourism platforms.

Effects of Monoethanolamine in preparation of V/MPTiO₂ catalysts on NH₃ Selective Catalytic Reduction

전세원,김도희,송인학,이황호 한국공업화학회 2020 한국공업화학회 연구논문 초록집 Vol.2020 No.-

NO_x emission regulations have been strengthened and demands for efficient NO_x removal systems have been grown. NH₃ selective catalytic reduction is considered as an effectual NO_x removal technique. In particular, vanadium-based catalysts have been used for NO_x removal from stationary sources. To achieve higher NO_x conversion at low temperature, monoethanolamine(MEA) was added in preparation of V/MPTiO₂ catalysts. In the present study, the addition of MEA demonstrates a better NO_x conversion at low temperature and maintains higher NH₃ conversion over the temperature range. Also, V/MPTiO₂ with MEA has a larger amount of adsorbed ammonia based on NH₃-TPD, which is beneficial in SCR reaction, and more Bronsted acid sites existed based on the in-situ DRIFTS spectra. Based on the characterizations, our research suggests that vanadium based catalysts could have improved catalytic activity with larger extent of adsorbed ammonia and Bronsted acid site when MEA is added in preparation process.