저류용량-신뢰도-수요량 관계를 이용한 레인배럴 공유 네트워크의 국내 성능 평가

권유정,서용원,박창근 한국수자원학회 2020 한국수자원학회논문집 Vol.53 No.11

The Intergovernmental Panel on Climate Change (IPCC) reported that the amount of precipitation in South Korea would increase regardless of the reduction of Greenhouse Gas (GHG) emissions. Moreover, the temporal and spatial rainfall variation would also increase in the future. Due to the geographic allocation of Korea, more than 80% of the annual precipitation occurs in the wet season from early July to late September. It is expected that the average precipitation in this period will increase from the Representative Concentration Pathways (RCP) scenario projections. These predictions imply an increased variability of available water resources. Rainwater harvesting system is widely used as an alternative water resources today. This study introduces a RBSN (rain barrel sharing network) as an efficient way to utilize alternative water resources under the RCP scenarios. The concept of RBSN combines individual rainwater harvesting system to a sharing network, which make the whole system more reliable. This study evaluated a RBSN in South Korea composed of four users based on a storage-reliability-yield (SRY) relationship. The study area comprises all 17 provincal areas in South Korea. The result showed a huge benefit from a RBSN in Korea under the historical rainfall condition. Even in the climate change condition, the results showed that a RBSN is still beneficial but the changes in reliability are different depending on provinces in Korea. The results of this study shows that a RBSN is a very effective and alternative measure that can deal with the impacts of climate change in the near future. 본 연구에서는 강수를 대체수원으로 효과적으로 이용할 수 있는 방안의 하나로 빗물집수시스템을 공유하는 RBSN (Rain Barrel Sharing Network)을 소개하고, 현 상태 및 미래 기후변화 조건하에서의 효율에 대해 평가하였다. 우리나라 17개 특별시, 광역시 및 도를 대상으로 RBSN를 적용했을 때 미적용시와 비교하여 신뢰도, 회복탄력도 및 취약도의 변화를 분석하고, 지역별, RCP 시나리오별로 비교 검토하였다. 검토결과 현 기후조건하에서도 RBSN을 통해 평균 60%이상의 빗물집수시설의 필요 저류용량을 저감할 수 있는 것으로 검토되었으며, 기후변화 조건하에서는 이러한 효용이 지역별로 다른 양상으로 나타났다. 본 연구 결과를 바탕으로 향후 빗물집수시설의 공동 이용에 대한 필요성이 더욱 부각될 수 있을 것으로 판단된다.

공중보건학적 관점에서 본 만성폐쇄성폐질환과 소득수준의 연관성

권유정,정상미,최종현,이영석,민경훈,심재정 대한내과학회 2017 대한내과학회 추계학술대회 Vol.2017 No.1

남녀 청소년의 또래애착과 자아탄력성 간의 관계에서 준사회적 우정의 조절효과

권유정,임지영 가정과삶의질학회 2021 한국가정관리학회 학술발표대회 자료집 Vol.2021 No.5

청소년의 준사회적 상호작용과 준사회적 관계, 또래애착, 자아탄력성 간의 구조적 관계

권유정,임지영 한국아동학회 2020 한국아동학회 학술발표논문집 Vol.2020 No.6

분만방법 유형이 골반바닥근육 기능에 미치는 영향

권유정,이현옥 대한고유수용성신경근촉진법학회 2017 PNF and Movement Vol.15 No.3

Purpose: The purpose of this study was to investigate of the effects of the mode of delivery on pelvic floor muscle function by examining bladder base movement and urinary incontinence. Methods: This study was conducted on 100 females who had delivered in the previous 3–8 months. There were 2 groups: 56 vaginal deliveries and 44 cesarean section deliveries. Prior to the study, a survey was conducted on the subjects’ general status, delivery mode, urinary incontinence, and physical activity. The groups could not be blinded due to scar tissue from the operations. The function of the pelvic floor muscle was observed with the bladder base movement using transabdominal ultrasound during pelvic floor contraction. To objectify and measure the subjective symptoms of subjects suffering from urinary incontinence, an incontinence quality of life (I-QoL) test was administered. Statistical analysis of the data was performed using SPSS version 20.0. An independent t-test was used to assess the statistical significance of pelvic floor muscle function between the 2 groups after delivery. Results: The movement of the bladder base in the pelvic floor muscle function was decreased in the vaginal delivery group, but the difference was not significant. Urinary incontinence was significantly increased in the vaginal delivery group. Conclusion: The function of the pelvic floor muscles was better in the cesarean section group and the incidence of urinary incontinence was relatively low in this group. Therefore, vaginal delivery requires more efforts to restore the function of the pelvic floor muscles than cesarean delivery.

포스터(유전) : 포스터22 ; 스미스 마제니스 증후군(Smith-Magenis Syndrome(SMS))증례 보고

권유정,박영주,김미숙,지현영 대한임상병리사협회 2011 임상혈액검사학회 발표자료집 Vol.13 No.1

중서부태평양해역 다랑어어업의 생태계기반 어업 위험도 평가

권유정,임정현,이미경,이성일 한국수산해양기술학회 2020 수산해양기술연구 Vol.56 No.4

Tuna fisheries were applied to an integrated ecosystem-based fishery risk assessment method using indexes of target species status, inhabited species in a target ecosystem, habitat quality and socio-economic benefit of affected fisheries. This study suggested more effective and efficient management measures to break away from traditional management methods, such as limitation of catch and fishing effort. The results presented that the objective risk index (ORIS) on sustainability of bigeye and yellowfin tunas by purse seine fishery was estimated high due to the high catch ratio of small fishes. The ORIs of biodiversity (ORIB) and habitat quality (ORIH) of purse seine fishery were also estimated at a high level from using fish-aggregating devices (FAD). However, due to skipjack tuna’s high catches, the ORI of socio-economic benefit (ORIE) was estimated at a very low level. Due to the high bycatch rate, ORIB was high, and ORIS and ORIH were evaluated at a low level in longline fishery. Due to strengthern of fishing restrictions and increase of fishing costs, the ORIE was assessed to be very high. The ecosystem risk index (ERI) for two tuna fisheries was assessed low, but the overall FAD management by purse seine fishery is necessary at the ecosystem level. 본 연구에서는 어업에 영향을 받는 대상종의 자원상태, 대상생태계내 서식종의 상태, 서식처의 상태 및 사회경제적 효과까지 포함된 통합 생태계기반 자원평가 모델에 다랑어어업을 적용하였다. 이를 통해 어획이나 노력 제한과 같은 기존의 전통적인 관리방안에서 탈피하여 보다 효과적이고 효율적인 관리방안을 제시할 수 있는 기초연구로 사용하고자 한다. 평가 결과 선망어업은 눈다랑어와 황다랑어의 소형어 어획비율이 높아 지속가능성 목표에서 높은 위험도를 나타냈다. 또한 선망어업의 특성상 FAD 조업으로 인한 혼획률, 폐기률 및 어업폐기물이 TRP보다 높아 생물다양성 및 서식처의 질에 대한 위험도도 높은 것으로 평가되었다. 다만, 가다랑어의 어획량이 높아 사회경제적 편익에서는 매우 양호하게 평가되었다. 연승어업은 혼획률이 높아 생물다양성의 위험도가 다소 높게 평가되었으나, 지속가능성 및 서식처의 질에서는 매우 양호한 상태를 나타냈다. 그러나 눈다랑어 및 황다랑어의 어획, 노력량 제한, 조업비용 상승 등으로 사회경제적 편익의 위험도는 매우 높게 평가 되었다. 두 어업에 대한 대상생태계의 위험도는 다소 양호한 상태로 평가 되었으나, 선망어업의 FAD조업에 대한 생태계 차원에서의 전반적인 관리가 필요할 것을 보인다.

유기-무기 하이브리드 압전 나노복합체 기반의 플렉서블 에너지 하베스터 제작 및 발전성능 평가

권유정,현동열,박귀일,Kwon, Yu Jeong,Hyeon, Dong Yeol,Park, Kwi-Il 한국재료학회 2019 한국재료학회지 Vol.29 No.6

A flexible piezoelectric energy harvester(f-PEH) that converts tiny mechanical and vibrational energy resources into electric signals without any restraints is drawing attention as a self-powered source to operate flexible electronic systems. In particular, the nanocomposites-based f-PEHs fabricated by a simple and low-cost spin-coating method show a mechanically stable and high output performance compared to only piezoelectric polymers or perovskite thin films. Here, the non-piezoelectric polymer matrix of the nanocomposite-based f-PEH is replaced by a P(VDF-TrFE) piezoelectric polymer to improve the output performance generated from the f-PEH. The piezoelectric hybrid nanocomposite is produced by distributing the perovskite PZT nanoparticles inside the piezoelectric elastomer; subsequently, the piezoelectric hybrid material is spin-coated onto a thin metal substrate to achieve a nanocomposite-based f-PEH. A fabricated energy device after a two-step poling process shows a maximum output voltage of 9.4 V and a current of 160 nA under repeated mechanical bending. Finite element analysis(FEA) simulation results support the experimental results.

도시홍수 통합관리모델 수립연구 - 유곡천 유역을 중심으로 -

권유정,서용원,박창근 (사)위기관리이론과실천 2023 Crisisonomy Vol.19 No.4

Urban areas with high levels of impervious cover and inadequate flood-mitigation policies are becoming increasingly vulnerable to flooding compared to other areas. Despite nationwide efforts to mitigate flood damages, which primarily focus on major rivers, smaller rivers and urban catchments still experience frequent floods. This study utilized a semi-distributed hydrologic model and SWMM to consider the potential backwater effect on inland flooding. Through complementary analysis using observed rainfall and flow data from early October 2016 (Typhoon Chaba), the study was conducted on the Yugok Catchment. The results demonstrate the advantages of the semi-distributed model, which can handle spatial-temporal rainfall distribution and infiltration parameters while maintaining relatively faster calculation speed compared to a fully-distributed model. Furthermore, this study suggests that integrating the model with the SWMM can provide sufficient, accurate, and prompt information to enable effective flood crisis management plan. 최근 증가하는 홍수피해는 높은 불투수면적률과 홍수 대응 정책 미흡 등으로 인해 도시지역에서 취약성이 크게 나타난다. 또한 이에 대응하기 위한 홍수정책은 국가하천 및 대하천 위주로는 수립이 잘되어 있으나 중소하천에서 장마철에 발생하는 홍수 대응에 대해서는 미흡하다고 할 수 있다. 우리나라는 지형적 특성, 하천 특성 등 지역별 특성이 다양하기 때문에 지역마다 자연재해에 대비한 저감 대책이주기적으로 발행되고 있지만 이는 홍수 발생 시 대응 방안이라고 보기는 어렵다. 본 연구에서는 도시홍수에 대응하기 위해 도시홍수 통합관리 모델을 수립하고, 외수 분석을 위해 집중형 수문 모형과 준분포수문 모형의 적용 방안을 제시하였고 내수 분석을 위해 SWMM 모형 구축을 제안하였다. 이를 검증하기위해 울산광역시 유곡천 유역을 대상지역으로 선정하여 홍수 피해 이력을 바탕으로 내수 및 외수 홍수분석모형을 구축하여 수리 수문 분석을 수행하였다. 이러한 도시홍수 관리모델은 예상 강우량과 외수위를 이용하여 유역의 홍수 대응 결정 방안으로 이용될 수 있을 것으로 판단된다.

부모의 긍정적 양육태도가 청소년의 행복감에 미치는 영향: 협동역량과 또래관계의 순차적 매개효과

권유정,임지영,최유석 한국가족관계학회 2022 한국가족관계학회지 Vol.27 No.1

Objective: This study aimed to examine the sequential dual mediating effects of cooperative competence and peer relationships in the effect of positive parenting on adolescent’ happiness. Methods: This study used data from the 2nd Panel Study on Korean Child Youth Panel Survey. Subjects in this study were 2,348 adolescents in the second grade of middle school at that time. Data were analyzed using descriptive statistics, one-way ANOVA, pearson correlation analysis, path analysis with the SPSS 25.0 and AMOS 23.0 program. Results: First, there were significant positive correlations among positive parenting, adolescent’ cooperative competence, peer relationships, and happiness. Second, positive parenting had a significant indirect effect on adolescents’ happiness through cooperative competence and peer relationships. Conclusions: This study is meaningful in that it examined the specific path of variables affecting adolescents’ happiness using large-scale data of the national level. Also, the results of this study suggest that positive parenting, cooperative competence, and peer relationships are important resources for adolescents’ happiness. Therefore, in order to improve adolescents’ happiness, it is necessary to develop a program using these variables.