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권송,유주현,권혜진 인간식물환경학회 2018 인간식물환경학회지 Vol.21 No.6
The distribution of standing wreaths has reached about 7.1 million per year and the size of the standing wreath market is estimated to be at least 700 billion won. Among them, 20 to 30 percent are estimated to be reused, resulting in damage to flowerfarms’ sales of 110 to 160 billion won per year. Due to the unique characteristics of conventional 3-tier standing wreaths in terms of transportation and installation, companies that lack design expertise have monopolized local distribution markets, and the issue of illegally using standing wreaths has been raised. These issues have highlighted the need for developing new designs and establishing a distribution system to expand the consumption of flowers. This study was carried out to identify consumers’ perception of reused standing wreaths and the current systems introduced to prevent the distribution of reused standing wreaths such as the real-name standing wreath production system, the authenticity certificate system, and new standing wreaths. The results of a consumer survey showed that consumers’ perception of reused standing wreaths has been high and that reused standing wreaths need to be actively regulated to establish fair trade order and protect consumers' rights. Although the effectiveness of the real-name system, the authenticity certificate system, and new standing wreaths was found to be insufficient, the introduction of these systems was essential and necessary for continuous promotion through broadcasting media.
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권송이(Songyi Kwon),송명규(Myunggyu Song) 한국환경정책학회 2017 환경정책 Vol.25 No.3
This study examined whether citizens of Pyeongtaek, South Korea, were more encouraged to pro-environmental behavior intention (PEBI) by community attachment (CA) or civic consciousness (CC). With this aim, the study sought to ascertain the effects of CA and CC on PEBI through a structural equation model, where CA and CC were independent factors, and to find methods for promoting the PEBI of citizens of Pyeongtaek. The results can be summarized as follows. First, the independent variables showed a stronger positive total effect on PEBI in the order of: CC, general environmental concerns, and CA. Second, CA was proven to have a negative indirect effect on PEBI, contrary to the initial research hypothesis. However, the total effect, including the direct effect, showed a positive value. These findings suggest that to stimulate citizens’ PEBI, communities need to encourage public factors such as CC more than individual factors such as CA, and that continuous efforts should be made to educate and enlighten citizens to guide CC to serving as a stimulus to PEBI.
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페놀의 수산화 반응에 사용한 TS-1 촉매의 효과적인 재생 방법(소성 온도 의존성)
권송이 ( Song Yi Kwon ),윤성훈 ( Song Hun Yoon ),엄경섭 ( Kyung Sub Um ),이재욱 ( Jae Wook Lee ),이철위 ( Chul Wee Lee ) 한국화학공학회 2010 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.48 No.6
In this study, calcination temperature dependence of TS-1 catalyst was investigated in the hydroxylation of phenol with hydrogen peroxide during the regeneration of catalyst. Catalyst was regenerated 5 times by calcining at 550˚C and 700˚C, respectively. When the catalyst was regenerated at 550˚C after 5th regeneration phenol conversion was decreased from 22.9% to 15.1% and at 700˚C after 5th regeneration phenol conversion was decreased from 22.9% to 18.8%. For formation ratio of catechol/hydroquinone was increased from 1.28 to 1.45 after 5th regeneration at 550˚C, and from 1.28 to 1.20 after 5th regeneration at 700˚C. The main reasons for deactivation of the catalyst were suggested by analyzing chemical/physical properties with XRD, UV-vis spectra, N2 adsorption/desorption and TGA, and evaluating the catalytic activity such as phenol conversion and product selectivity.
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공업화학(전기화학, 분석화학 포함) 촉매/반응공학 수열 합성법과 마이크로파 가열법으로 제조한 TS-1 촉매에 의한 페놀 수산화 반응: 용매의 영향
권송이 ( Song Yi Kwon ),윤성훈 ( Song Hun Yoon ),이종민 ( Jong Min Lee ),장종산 ( Jong San Chang ),이철위 ( Chul Wee Lee ) 한국화학공학회 2011 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.49 No.2
Catalytic activity such as conversion and selectivity on the phenol hydroxylation over TS-1 prepared by hydrothermal method and microwave heating method, respectively, was compared and discussed for understanding the dependence of solvent such as water, methanol, acetone, respectively, during phenol hydroxylation, with hydrogen peroxide. Basic physical properties such as XRD, EDS, SEM and N2 adsorption-desorption were determined and compared. The relationship between catalytic activity and physical properties of TS-1 was explained.
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권송이(Kwon Song-Yi) 한국도시부동산학회(구.도시정책학회) 2021 도시부동산연구 Vol.12 No.3
This study explores how residential satisfaction among middle-aged people living in the metropolitan area affects happiness. Existing studies have considered residential satisfaction as one of the determinants of happiness and found that residential satisfaction has a positive impact on happiness. Our residential environment may affect happiness in itself, but it may also affect happiness through social relationships occurring in the living place and our belief that we live as members of society. Thus we need to consider the mediating effects of social satisfaction and self-efficacy when analyzing the relationship between residential satisfaction and happiness. This study verified a model of happiness based on the human-environmental fit model and the exchange theory. The analysis results are as follows. First, social relationship satisfaction and self-efficacy is fully mediated between residential environmental satisfaction and happiness. Second, housing satisfaction directly affected happiness without the mediating effect of social satisfaction or self-efficacy. To increase happiness, we need to improve housing conditions and the residential environment and actively consider making it a place where social relations can take place.
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차량용 레이다 시스템에서의 LSTM 회귀 모델을 이용한 보행자 경로 예측
전다현,권송이,곽승헌,이성욱 한국전자파학회 2024 한국전자파학회논문지 Vol.35 No.4
본 논문에서는 운전자 안전 시스템을 개선하기 위하여 보행자에 대한 감지 성능을 향상하고, 보행자의 미래 경로를예측하는 방법에 대해 제안한다. 우선 주파수 변조 연속파형 레이다 시스템을 통해 정지된 차량 뒤에서 이동하는 보행자의 거리 및 속도 정보를 추정한다. 이때 보행자의 신호를 검출하기 위하여 cell-averaging constant false alarm rate 알고리즘을 이용해 잡음 환경에서 표적에 대한 신호 성분을 효과적으로 검출했다. 또한 높은 해상도로 표적에 대한 각도를 추정하는 multiple signal classification 알고리즘을 이용하여 최종적으로 보행자의 위치를 추정하였다. 이후, 딥러닝 모델 중하나인 long short-term memory 신경망을 활용하여 정지된 차량 뒤에 가려진 보행자의 이동 경로를 예측한 다음, 차량용시스템에서의 운전자 안전 기능을 위해 차량 뒤에서 걸어 나오는 보행자의 방향을 추정하고 미래 경로까지 예측하였다. 이때 예측한 점과 실제 경로에 대한 점 사이의 유클리드 거리 평균 오차는 약 0.09 m로 계산되었다. In this study, we propose a two-step method to enhance pedestrian detection and driver safety in automotive radar systems. First, we assumed information regarding the range, velocity, and angle of pedestrians behind stationary vehicles using a frequency-modulated continuous wave radar system, with the cell-averaging constant false alarm rate algorithm employed to effectively distinguish between the target signals and noise components. Additionally, a multiple signal classification algorithm was used for the high-resolution angle estimation of the target. Subsequently, a long short-term memory network is applied to predict the movement of a pedestrian, with the results indicating an average error of 0.09 m between the predicted and actual points along the trajectory.
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정재은,정슬기,권송이,최혜린,배윤진 한국부모교육학회 2011 부모교육연구 Vol.8 No.2
본 연구는 대학생의 사회경험과 자아탄력성 간의 관계를 알아보고자 하였다. 이를 위해 대구에 위치한 대학교에 재학 중인 대학생 643명을 대상으로 사회경험(아르바이트활동, 봉사활동, 동아리활동)과 관련된 문항과 자아탄력성 척도 문항에 응답하도록 하였다. 주요 연구결과는 다음과 같다. 1)남학생이 여학생보다 자아탄력성이 높았고, 연령이 높은 집단일수록 자아탄력성이 높았다. 2)아르바이트활동 및 봉사활동의 참여 동기에 따라 자아탄력성 점수에 유의미한 차이는 없었다. 3) 아르바이트활동에 적극적으로 임하는 경우 자아탄력성의 하위영역 중 대인관계에 긍정적 영향을 미쳤고 봉사활동의 적극성은 활력성에 긍정적 영향을, 봉사활동에서 느끼는 도움정도는 활력성과 낙관성에 긍정적 영향을 치는 것으로 나타났다.
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대도시 거주 베이비붐 세대의 귀농·귀촌 의향을 구성하는 다차원적 요인 분석
김유하,김이선,나윤영,권송이 한국지역사회학회 2023 지역사회연구 Vol.31 No.2
Since the 2010s, the patterns of rural-to-urban migration have undergone a substantial change as a result of the increase in urban-to-rural migration. The largest group of people moving from cities to rural areas is the baby boomers. The goal of this study, which is based on a conceptual discussion of the construct of migration aspiration, is to explain the complexity of urban-to-rural migration aspiration with the methodological framework of the structural equation model. The findings indicate that the desire to move back to the rural area is positively related to both objective and subjective distance from the rural area, higher levels of stress, and higher levels of subjective economic status, but negatively related to homeownership. The mediation effect analysis showed that first, objective and subjective variables interact to affect aspiration for urban-to-rural migration, and second, temporal factors, including past experiences, assessments of the present situation, and prospects, interact with the spatial objective and subjective variables to create aspiration for urban-to-rural migration. The breakdown of the impacts revealed that the objective and subjective distance from rural areas has the biggest influence among the interconnected multidimensional components that make up the desire to move back there. The importance of this study lies in the fact that it makes use of structural equations to capture the intricate workings of multidimensional factors to gain an understanding of baby boomers' desire to move from urban to rural areas while residing in large cities. Lastly, this study suggests that various opportunities for experience and future prospects should be provided to reduce the psychological distance from rural areas for baby boomers to return to farming and rural areas.
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