정화 처리토가 렌틸(콩과식물)의 지상부 및 뿌리 성장에 주는 영향에 대한 정량평가

박혜선,강수아,배범한,Park, Hyesun,Kang, Sua,Bae, Bumhan 한국지하수토양환경학회 2021 지하수토양환경 Vol.26 No.5

A series of pot experiments were conducted to quantitatively estimate inhibitory effects of reclaimed soil on the growth of Lentil (Lens culinaris) with two soils remediated by land farming (DDC) and low temperature thermal desorption(YJ), respectively. After cultivation in a growth chamber for 8 days, plants were harvested for the analysis of 8 indices including chlorophyll-a and carotenoid in leaves, shoot fresh weight, root dry weight, root length, number of later roots, specific root length (SRL) as well as germination rate in comparison to control experiment conducted on nursery soil. Root length was estimated by SmartRoot program from the digital images of the roots. The results showed germination rate on YJ and DDC soil decreased 29 and 71%, respectively. In comparison to the control, the averaged value of the 8 indices for YJ and DDC soil showed overall growth inhibition was 48 and 68%, respectively. When the same experiment was conducted with 25% (W/W) vermiculate amended soil, plant growth on each soil was comparable to that of the control. The results implies reclaimed soils requires additional processes and/or amendments to reuse for plant growth.

한국 1인 가구의 주거에 관한 연구 경향 분석 -키워드 네트워크 분석을 중심으로-

박혜선 ( Hyesun Park ) 중앙대학교 예술문화연구원 2020 예술문화융합연구 Vol.13 No.-

For the past 20 years, the population size has been decreasing due to reasons like the drop of birthrate, and the number of single-person households is rapidly increasing because of social factors like the delay in age at first marriage and also an aging society. For these reasons, the phenomenon of shrinking households is evident in our society. In pace with the growing number of single-person households, preceding studies conducted an analysis on the characteristics of single-person households for each country but there have not been active systematic literature analysis studies to consider various types of single-person households. Accordingly, this study aims to verify the tendencies of preceding studies about single-person households in the country. For the study method, the trend analysis of 102 preceding studies about single-person households was based on to analyze the characteristics of the relations between the data and digital network analysis was performed to visualize it. In addition, a systematic review was conducted to collect data with a structured method and synthesize the survey results quantitatively. The study findings resulted in researches about the ratio of single-person households being high for young people and elders as well as keywords that followed the increase of single-person households like share house and small houses. In the following generation, there is a tendency of preference for practical small houses where they can cut down on their housing expenditure over large and medium sized houses with a large space. This flow increases the demands of small houses and also requires transformed residential environments that consider the residential requirements and characteristics of the lifestyles of single-person households. Based on the fact that the satisfaction of the changing residential types were mentioned together with keywords like ‘needs’ and ‘demands,’ it can be said that this shows the high interest about the qualitative improvement of residential space for single-personal households. The significance of this study is that digital techniques were used to perform multilateral and 3-dimensional analysis to examine the tendencies of residential research on single-person households in the country and proposed basic data about the follow-up studies of residential problems that will emerge from the continued phenomenon of shrinkage in the size of the households.

보육교사의 회복탄력성과 직무만족도의 관계에서 조직몰입의 매개효과

박혜선 ( Park Hyesun ),이시자 ( Lee Sija ) 미래유아교육학회 2018 미래유아교육학회지 Vol.25 No.4

The purpose of this study was to investigate the mediating effect of child care teacher's organizational commitment between resilience and job satisfaction. The participants of the study were 300 child care teachers working in day care centers in Incheon Metropolitan City. Three survey instruments were used in this study; Job Satisfaction Questionnaire(Huang, 2001), the Resilience Quotient Test(Reivich & Shatte, 2003), and the Organizational Commitment Scale(Allen & Mayer, 1990). SPSS 22.0 program was used for correlation analysis and regression analysis developed by Baron and Kenny. The results of the study are summarized as follow: First, the resilience, organizational commitment, and job satisfaction of child care teachers showed a statistically significant positive correlation. Second, it revealed that the organizational commitment has a partially mediated effect on the relationship between child care teacher's the resilience and job satisfaction. In particular, among the three factors of organizational commitment, affective commitment showed highest mediating effect and was followed in order by normative commitment and continuance commitment. The results suggest that the organizational commitment of child care teachers not only affect directly their job satisfaction but also exerts indirect effects by mediating the relationship between resilience and job satisfaction. These findings need to be considered in developing programs and policies to enhance child-care teachers' job performance.

C0VID-19 발생 전후 도서관 이용 실태 비교연구 - 서울시내 A 대학도서관을 중심으로 -

박혜선 ( Hyesun Park ) 중앙대학교 예술문화연구원 2021 예술문화융합연구 Vol.14 No.-

COVID-19 is an infectious disease, and the life patterns of people worldwide have changed. Specially, in case of libraries on university campus, which is one of the key public facilities, it could be a vulnerable area to COVID-19 since it is a central space where the flow of the users intersects and the users stay there for a long period. This study intends to investigate how the operation of university libraries have changed based on the occurrence trend of COVID-19 and the phased social distancing policy along with how students utilize the library in response to the situation, and this study will also identify countermeasures for the library environment so that it is suitable to the post-COVID-19 conditions. For the research method, the number of users over the 3 years, before the outbreak of the COVID-19 pandemic, and the number of users after the outbreak of COVID-19 will be compared, and the current situation of the users will be compared with the present condition of the COVID-19 pandemic. For this, the data about the access of the library users were visualized into a linear graph and SPSS Statistics program was used to analyze the correlation. While the graph for the period over the past 3 years generally has a consistent pattern during the semester, vacation, and examination period, the graph in 2020 showed that the outbreak of COVID-19 and library operation policy changes caused an influence on the utilization of the library, discretely from the period throughout the semester. Since the outbreak condition of COVID-19 is a key evidence for the changes in the library operation policy, graphs were drawn with the number of confirmed COVID-19 cases in Seoul, the number of confirmed COVID-19 cases nationwide, and the number of library users and statistical analysis was conducted. Based on the research findings, it showed that the number of library users decreased followed by the increase in the number of confirmed cases, and the utilization rate had a stronger correlation with the number of confirmed COVID-19 cases nationwide more than the number of confirmed COVID-19 cases in Seoul.

1인 가구의 주거에 대한 체계적인 문헌고찰 연구

박혜선(Park, hyesun),이소연(Lee, Soyeon) 한국주거학회 2020 한국주거학회 학술대회논문집 Vol.32 No.2

녹비식물 혼합재배에 휴믹물질 투입이 정화처리토양의 생물학적 토양 건강성 지표에 미치는 영향

배범한,박혜선,강수아,Bae, Bumhan,Park, Hyesun,Kang, Sua 한국지하수토양환경학회 2021 지하수토양환경 Vol.26 No.5

The effects of green manure crops, hairy vetch and sesban, supplemented with HS (humic substance) on biological soil health indicators was studied in a pot containing two kinds of reclaimed soil previously contaminated with petroleum hydrocarbons; a soil remediated by land-farming (DDC) and another soil by low-temperature thermal desorption (YJ). Treatments include no plant (C), plants only (H), and plants+2% HS (PH), which were evaluated in a pot containing respective soil. Biological indicators include microbial community analysis as well as soil enzyme activities of dehydrogenase, 𝛽-glucosidase, N-acetyl-𝛽-D-glucosaminidase (NAG), acid/alkaline phosphatase, arylsulfatase, and urease. Results showed an increase of enzyme activities in pot soils with plants and even greater in soils with plants+HS. The enzyme activities of DDC soil with plants (DDC_P) and with plants+HS (DDC_PH) increased 1.6 and 3.9 times on average, respectively than those in the control. The enzyme activities YJ soil with plants (YJ_P) and with plant+HS (YJ_PH) increased 1.8 and 3.8 times on average, respectively than those in the control. According to microbial community analysis, the relative abundance of nitrogen-fixing bacteria in DDC and YJ soil was increased from 1.5% to 7% and from 0 to 5%, respectively, after planting hairy vetch and sesban. This study showed that mixed planting of green manure crops with a supplement of humic substance is highly effective for the restoration of biological health indicators of reclaimed soils.

처리토에 녹비 식물 청보리 경작 시 휴믹 물질이 식물생장 및 생물학적 토양 인자에 주는 긍정적 영향

강수아,박혜선,이윤노,배범한,Sua Kang,Hyesun Park,Younrho Lee,Bumhan Bae 한국지하수토양환경학회 2024 지하수토양환경 Vol.29 No.1

A study was performed to investigate the positive impacts of humic substances (HS) on the growth of green barley, a type of green manure plant. The study was conducted in a pot culture using two different types of reclaimed soils that had been treated by land farming (DDC) and thermal desorption (YJ) methods, respectively. The experimental conditions consisted of three treatments: plant only (P), plant plus 2% HS, and no plant (control). After 89 days of culture in a controlled growth chamber, the growth of spring barley and activity of seven soil enzymes were measured. The results indicated that the addition of HS had a substantial (p<0.10) positive effect on shoot biomass in both types of soil. Furthermore, the addition of HS notably (p<0.05) enhanced all seven soil enzyme activities in both soils. Both the aboveground and belowground parts of barley plants were returned to soil and aged for 10 weeks in the same growth chamber, which resulted in notable enhancement in soil health indicators. These improvements included an increase in organic matter, a drop in bulk density, and an increase in the activity of seven different soil enzymes. When lentil seeds were planted in the aged soils, the development of the seedlings was more vigorous than that in the control in both soils, although allelopathy of barley suppressed lentil germination in soil with pH 7.0 but not in soil with pH 8.5.

음성인식 기반 위급상황 알림 및 일상생활 음향 분류 앱 개발

이정민(Lee Jeongmin),박연우(Park Yeonwoo),이현진(Lee Hyeonjin),박혜선(Park Hyesun),임양미(Lim Yangmi) 한국방송·미디어공학회 2023 한국방송미디어공학회 학술발표대회 논문집 Vol.2023 No.11

중년 남성의 경제적 불안, 자기효능감이 재정 스트레스에 미치는 영향

임선영 ( Lim Sunyoung ),박혜선 ( Park Hyesun ) 대한통합의학회 2020 대한통합의학회지 Vol.8 No.3

Purpose : The purpose of this study was to investigate economic anxiety, self-efficacy, and financial stress levels in middle-aged male and identify factors affecting financial stress and provide baseline data for the development of nursing interventions to reduce financial stress in middle-aged male. Methods : Participants were 91 middle-aged male who live in Seoul and Gyeonggi Province. The data collection period was from April 1, 2020, to May 1. In this study, the questionnaire of economic anxiety, self-efficiency, financial stress was used. The data were analyzed by average, standard deviation, minimum, maximum correlation and regression using SPSS version 21.0. Results : In this study, the financial stress of middle-aged male affected economic anxiety with significant results (β=.628, p<.001). The absolute model's explanatory power was 36.8 % (adjusted R2=.368), indicating that economic anxiety affects financial stress levels in middle-aged male (F=27.151, p<.001). Conclusion : This study shows that economic anxiety affects financial stress. Based on the research results, basic data for the development and application of nursing programs to reduce financial stress were presented in consideration of the economic anxiety of middle-aged males. Therefore, there is a need for mediation to help middle-aged men positively recognize real-life situations and changes in society. Such mediation involves the development and application of educational and counseling programs that can reduce financial stress and economic anxiety in middle-aged men.

중국 패션상품 소비자들의 인터넷구전과 만족도에 대한 연구

서초 ( Chao Xu ),박혜선 ( Hyesun Park ) 한국의류학회 2015 한국의류학회지 Vol.39 No.5

This study examined the e-WOM acception and transmission motive of Chinese online fashion product shoppers in their 20s and analyzed the effect of acception and transmission motive factors on acception and transmission behavior. This study investigated the effect of acception and transmission behaviors on purchase satisfaction. Analysis was conducted with data collected from 373 Chinese individuals in their 20s. Data were analyzed with factorial analysis, ANOVA, multiple regression analysis, chi-square test, paired ttest, and Cronbach``s α using SPSS 18.0. The results were: 1. The factor analysis of e-WOM acception motive extracted two factors: risk reduction and confidence. The factor analysis of e-WOM transmission motive extracted three factors: Compensation/pleasure, advice, and emotion expression. 2. The two motives of e- WOM acception affected acception behavior. Confidence motive affected acception behavior more than risk reduction motive. The three motives of e-WOM transmission motives affected transmission behavior. Transmission behavior affected by advice, compensation/pleasure, and emotion expression in order of significance. 3. e-WOM acceptance behavior affected purchase satisfaction more than transmission behavior