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Microbial Genome Mining for the Development of Novel CO₂-utilization Modules
Seulgi KANG,Hyeonsik LEE,Jiyun BAE,Sangrak JIN,Donghwi LEE,Garam JEONG,You-Jung JUNG,Hyeokjun YOON,Moonsuk HUR,Byoung-Hee LEE,Jong-Geol KIM,Hyo Jeong LEE,Che Ok JEON,Suhyung CHO,Byung-Kwan CHO 한국생물공학회 2023 한국생물공학회 학술대회 Vol.2023 No.4
Database Design for IoT-based Greenhouse Systems
Chunghan Kang,Seulgi Yu,Junghoon Moon,Junghoon Moon 한국농식품정보과학회 2015 Agribusiness and Information Management Vol.7 No.2
Since 2000s, proper utilization of IoT (Internet of Things) technology is a key factor for a firm to become more competitive, and this stream is not exceptional for the food and agriculture industry. Along with this stream, Korea government organization, for example MAFRA (Ministry of Agriculture, Food and Rural Affairs), elected to adopt IoT technology, such as USN and RFID technologies, in the food and agriculture industry. Based on the IoT technology, MAFARA launched six “IoT based farm” project in 2007. IoT based farm project includes IoT based greenhouse system project, and it shows drastic efficiency in terms of cost reduction. When it comes to the productivity, however, the effect of IoT based greenhouse system is still ambiguous. In this regard, this study conducted systems analysis and design for IoT based tomato greenhouse in order to help farmers’ decision making related to the productivity by establishing standardized database structure and designing output form to analyze productivity indices. Proposed systems analysis and design can be utilized as a data analysis tools by farmers. Productivity data from the proposed systems is can be used by researchers to identify the relationship among environment, plant growth and productivity. Policy makers also can refer to the data and output forms to predict the quantity of fruit during certain period and to revise production guideline more precisely.
1910년대 한국 기독교인의 평화에 대한 인식과 실천: 대부흥운동과 3.1운동을 중심으로
강슬기(Seulgi Kang) 연세대학교 신과대학(연합신학대학원) 2021 신학논단 Vol.104 No.-
The primary purpose of this study is to prove that the nonviolent peace spirit of the 3.1 Movement originated from the Great Revival Movement. For this purpose, the first data and previous research results of domestic and foreign journals, newspaper articles, letters, reports, and interrogation papers were analyzed, focusing on Christian national activists and Christian leaders from the Great Revival Movement to the 3.1 Movement. Christians before the Great Revival Movement did not clearly establish the concept of Christian peace and absorbed the ideological tradition of the existing national movement as it was, showing contradictory aspects that affirmed the armed resistance against Japanese imperialism while being Christian. However, the perception of ‘Christian Peace’ formed among Korean church members through the Great revival movement gave the national movement a philanthropic identity. It also became the ideological basis for the creation of the methodology of the 3.1 Movement called the “nonviolent movement”. The findings of this study are as follows: First, the characteristic non-violence of the 3.1 Movement is closely related to the re-perception of violence through religious awakening during the Great Revival Movement. Second, the 3.1 Movement was developed as a peaceful way to prioritize the value of human dignity through a universal sense of community for humans created by God. Third, the awakening of Christian women’s ideas of human equality and the non-resistance to imperial and masculine violence of Japan greatly affected the peaceful characteristics of the 3.1 Movement.
Database Design for IoT-based Greenhouse Systems
Kang, Chunghan,Yu, Seulgi,Moon, Junghoon Korean Society of Food and Agricultural Informatio 2015 Agribusiness and Information Management Vol.7 No.2
Since 2000s, proper utilization of IoT (Internet of Things) technology is a key factor for a firm to become more competitive, and this stream is not exceptional for the food and agriculture industry. Along with this stream, Korea government organization, for example MAFRA (Ministry of Agriculture, Food and Rural Affairs), elected to adopt IoT technology, such as USN and RFID technologies, in the food and agriculture industry. Based on the IoT technology, MAFARA launched six "IoT based farm" project in 2007. IoT based farm project includes IoT based greenhouse system project, and it shows drastic efficiency in terms of cost reduction. When it comes to the productivity, however, the effect of IoT based greenhouse system is still ambiguous. In this regard, this study conducted systems analysis and design for IoT based tomato greenhouse in order to help farmers' decision making related to the productivity by establishing standardized database structure and designing output form to analyze productivity indices. Proposed systems analysis and design can be utilized as a data analysis tools by farmers. Productivity data from the proposed systems is can be used by researchers to identify the relationship among environment, plant growth and productivity. Policy makers also can refer to the data and output forms to predict the quantity of fruit during certain period and to revise production guideline more precisely.
Seulgi Yu,Seong Jin Chang,Yujin Kang,Sumin Kim 한국목재공학회 2016 목재공학 Vol.44 No.2
Owing to an increase in the air tightness of recent buildings, the natural ventilation rate was significantly lowered and the removal of accumulated moisture became difficult in these buildings. The hygrothermal performance of these buildings should be carefully considered to provide comfortable indoor environment by removing the moisture condensation risk and the mold growth potential. In this study, hygrothermal performance of two selected wall structures was investigated based on WUFI simulation program. The results displayed that the indoor temperature had impact on the moisture accumulation in the insulation layer for both modeled walls, showing that lower indoor temperature resulted in higher moisture accumulation, especially in the wood frame structure. Also, the yearly moisture accumulation profile exhibited a downward shift throughout the year by adding a vapour retarder with a lower sd-value. In addition, both of the two walls have condensation risk in winter, due to low temperature level. The wood frame structure has a bigger fluctuation and higher condensation risk than the concrete structure.