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이슬기,장정선,정성관,유주한,Lee, Seul-Gi,Jang, Jung-Sun,Jung, Sung-Gwan,You, Ju-Han 한국조경학회 2009 韓國造景學會誌 Vol.37 No.3
학교숲은 도시숲의 유형중 하나이다. 도시학교는 적당한 거리에 적당한 면적을 유지하고 있어 학교숲의 조성은 도시에 많은 숲이 조성되는 효과를 준다. 또한, 학교는 학생들이 오랜 시간 머무르는 장소로 학생들의 환경교육의 장으로써의 역할을 수행할 수 있다. 그러나 현재 조성된 학교숲은 학생들의 요구나 참여가 배제된 채 결과 중심의 사업이 되고 있어 학생들의 환경교육에 큰 영향을 미치고 있지 못한 실정이다. 또한 설문조사를 바탕으로 분석하는 기존연구의 경우, 리커트척도를 활용하여 주관적 판단인 정성적 자료를 정량화 하였다는데 의의가 있으나, 인간의 주관적 판단은 모호한 경우가 많아 일반적으로 정량화하는데 문제가 있다. 이에 본 연구에서는 경상북도에 위치한 초등학교 학생들을 대상으로 학교숲에 대한 객관적인 만족도 평가를 위해 퍼지이론을 활용하여, 학교숲 만족도에 미치는 항목들을 알아보고자 하였다. 연구 결과, '학교 특색'과 '정서 함양' 항목의 산술평균값의 순위와 퍼지이론을 도입한 무게중심값의 순위가 변화됨을 알 수 있었다. 이는 퍼지이론이 인간의 사고와 같은 정성적 자료를 합리적으로 객관화 할 수 있다는 증거가 된다. 또한 학교숲 전체 만족도에 영향을 주는 요인은 '학교 특색' 항목의 회귀계수값이 0.159로 가장 높았으며, 다음으로 '수량 많음(0.142)', '자연 소중(0.136)', '정서 함양(0.120)'순으로 나타났다. 이 연구는 설문의 객관적 분석방법과 학교숲 조성을 위한 기초자료로 활용이 가능하리라 판단된다. Wooded areas that are a part of school campuses are one type of urban forest. Most schools located in an urban environment make an excellent setting for a forest in terms of location and area. These kinds of wooded spaces also make the city greener and healthier. As a place where students spend a great deal of time, schools can also be a venue for environmental education. The creation of wooded areas in schools currently has focused on the end result only; by ignoring student needs and participation, these areas have not had a significant influence on student environmental education. Previous studies based on questionnaire survey are significant in that they have quantified subjective qualitative data via Likert Scale. There has been, however, a problem in quantifying the more ambiguous subjective data. Therefore, this paper has attempted to investigate those factors that have an influence on student satisfaction with the wooded areas of their school campus using Fuzzy Theory with elementary school students in Gyeongsangbuk-do. A change was observed in terms of the ranking of arithmetic mean values of 'school peculiarity' and 'emotion evolution' and center of gravity, which has adopted Fuzzy Theory, proving that Fuzzy Theory could rationally objectify qualitative data such as human thoughts. In terms of the influential factors on the satisfaction with school forests(regression coefficient), 'school uniqueness(0.159)' was the highest, followed by 'many trees(0.142),' 'importance of nature(0.136)' and 'emotion evolution(0.130).' This paper may therefore be useful as basic data for objective questionnaire surveys and the development of school forests.
익산 밭경지 특성을 고려한 초생대 유출 및 유사 저감효과 모의
이슬기,장정렬,최경숙,Lee, Seul Gi,Jang, Jeong Ryeol,Choi, Kyung Sook 한국농공학회 2014 한국농공학회논문집 Vol.56 No.5
The goal of this study was to evaluate sediment reduction effects of VFS (vegetative filter strip) applied for Iksan area in Saemangeum watershed. This study simulated runoff and sediment load from different types of uplands using VFSMOD-W. The general upland characteristics of the study area was investigated to build reasonable scenarios of the simulation. The simulation scenarios were designed by various areas, shapes, and slopes of uplands. Grass mixture was selected as VFS vegetation and the size of VFS was fixed as 10 % of uplands area. Additionally 50mm, 100mm, 150mm of daily rainfall were applied for the runoff and sediment simulation. As results, the calculated runoff and sediment loads were obtained $20.7{\sim}1,030.6m^3$ and 568.4~675,731.4 kg for the range of 0.1~1.0 ha of uplands with 7 % and 15 % slopes. The reduction effects on runoff and sediment were obtained 5~10 % and 21.0~47.7 % respectively from VFS applications. The VFSMOD-W simulations showed that runoff tended to increase as upland area and amount of rainfall increased while sediment increased when slope, length and area of uplands and amount of rainfall increased. These results indicated that rainfall amount and upland size are the critical factors for the generation of runoff and sediment load. In order to support this conclusion, further studies such as, long term monitoring, field experiments, and to calibrate and evaluate the model are necessary.
밭 비점오염저감을 위한 잔디초생대 적용 비용 및 활용성 평가
이슬기,장정렬,최경숙,Lee, Seul-Gi,Jang, Jeong-Ryeol,Choi, Kyung-Sook 한국농공학회 2015 한국농공학회논문집 Vol.57 No.2
This study was aimed to estimate the total application cost and utilization of Turf grass VFS application through the field experiment. The experimental plots were constructed in an upland field of Iksan city within the Saemangeum watershed. Turf grass was transplanted at the down-slope edge of the pollution source area in each of the treated plots. Three rainfall events were monitored during the experiment period, and the rainfall-runoff relationships and NPS pollution reduction effects of the VFS systems were assessed. As results, the reduction ratio of runoff volume ranged 14.1~64.0 %, while the NPS pollution reduction ratio ranged 9.8~73.9 % for SS, 24.0~84.2 % for T-N, 31.6~80.9 % for T-P respectively. The total cost of VFS application was estimated by considering purchase cost of Turf grass sods and construction and maintenance costs of VFS system as well as the loss caused by giving up crop cultivation for the area needed to construct the VFS. The total cost of the VFS was estimated to be approximately \3,379,000/ha/year for the first year of application, and this cost could be decreased to \1,899,000/ha/year from the second year as the construction cost of VFS could no longer need to be counted afterwards. Apart from the NPS pollution reduction effects, the possible utilization of VFS was examined by detaching Turf grass within 40 % of VFS area for sale during spring time when the VFS systems fully covered. The benefit of selling the detached Turf grass sods was estimated as \1,260,000/ha/year, and also found that the VFS area successfully recovered by the time of the summer period. This benefit could attract farmers to adopt the VFS technique to manage agricultural NPS pollution.
이슬기,장정렬,최경숙,Lee, Seul Gi,Jang, Jeong Ryeol,Choi, Kyung Sook 한국수자원학회 2018 한국수자원학회논문집 Vol.51 No.6
본 연구에서는 VFSMOD-W 모형을 활용하여 새만금 유역의 초생대 기법 적용에 따른 유사저감효과를 예측하고자 하였다. 먼저 모형의 신뢰도 확보를 위해 새만금 유역 내 초생대 실측치를 활용하여 매개변수를 보정하였으며, 새만금 유역 내 밭경지 특성을 파악하여 이를 토대로 모의 시나리오를 개발하였다. 다양한 밭경지 특성을 반영하기 위해 개발된 모의시나리오는 밭경지 규모 1 ha, 5 ha, 10 ha로 밭의 폭과 길이 비는 1 : 1를 적용하였으며, 밭의 경사는 7%, 15%를 고려하였다. 또한 강우조건은 50 mm, 100 mm, 150 mm, 200 mm 일강우량을 적용하였다. 그 결과, 초생대의 유출저감효과는 밭경사 7%와 15%에 대해 2.9~13.5%, 2.9~12.1%로 각각 나타났으며, 유사저감효과는 33.8~97.0%, 27.1~85.9%로 각각 나타나 유출저감효과에 비해 상대적으로 높은 저감효과를 나타내었다. 유출 및 유사 발생에 영향을 미치는 밭규모, 경사 및 강우량 인자에 따라 초생대 효과는 큰 차이를 나타내었다. 본 모의 결과를 바탕으로 새만금 유역내 밭경지 규모 10 ha 미만, 경사 15% 이내의 조건에서 밭면적 10% 규모로 초생대를 조성할 경우 유사저감 효과를 기대할 수 있을 것으로 사료된다. The study was intended to simulate the sediment reduction effects of the Vegetative Filter Strip (VFS) in uplands of Saemangeum watershed through VFSMOD-W model application. The model was calibrated by using the field data and the simulation scenarios were designed based on the investigation of uplands characteristics in Saemangeum watershed. The simulation scenarios were considered various size and slope of uplands including 1 ha, 5 ha, 10 ha of field size with width-length ratio of 1 : 1 having 7% and 15% of slopes under the daily rainfall of 50 mm, 100 mm, 150 mm, and 200 mm in order to mimic the different fields conditions. The effluent reduction ranged from 2.9~13.5% and 2.9~12.1% for runoff, and 33.8~97.0% and 27.1~85.9% for sediment under the field's slope of 7% and 15%, respectively. The VFS reduction effects showed different degree of influence from field size, slope, rainfall amounts. Based on the simulated results, the sediment contributing non-point source pollution expected to be reduced in the condition of VFS constructed 10% of fields in outlet of less than 10 ha of uplands having less than 15% of the slope.
스마트 폰 동영상을 활용한 피드백 자율실습이 기본간호수기 수행능력, 수행자신감 및 학습만족도에 미치는 효과
이슬기(Lee, Seul Gi),신윤희(Shin, Yun Hee) 한국간호과학회 2016 Journal of Korean Academy of Nursing Vol.46 No.2
Purpose: This study was done to verify effects of a self-directed feedback practice using smartphone videos on nursing students" basic nursing skills, confidence in performance and learning satisfaction. Methods: In this study an experimental study with a posttest only control group design was used. Twenty-nine students were assigned to the experimental group and 29 to the control group. Experimental treatment was exchanging feedback on deficiencies through smartphone recorded videos of nursing practice process taken by peers during self-directed practice. Results: Basic nursing skills scores were higher for all items in the experimental group compared to the control group, and differences were statistically significant [“Measuring vital signs” (t= - 2.10, p =.039); “Wearing protective equipment when entering and exiting the quarantine room and the management of waste materials” (t= - 4.74, p <.001) “Gavage tube feeding” (t= - 2.70, p =.009)]. Confidence in performance was higher in the experimental group compared to the control group, but the differences were not statistically significant. However, after the complete practice, there was a statistically significant difference in overall performance confidence (t= - 3.07. p =.003). Learning satisfaction was higher in the experimental group compared to the control group, but the difference was not statistically significant (t= - 1.67, p =.100). Conclusion: Results of this study indicate that self-directed feedback practice using smartphone videos can improve basic nursing skills. The significance is that it can help nursing students gain confidence in their nursing skills for the future through improvement of basic nursing skills and performance of quality care, thus providing patients with safer care.
Quality of Communication Life in Prelingually Deafened Adults with Cochlear Implant
Seul-Gi Lee(이슬기),Sang-Im Jung(정상임),Pyung-Kon Tark(탁평곤),Soo-Bok Lee(이수복),Youngmee Lee(이영미) 한국언어청각임상학회 2018 Communication Sciences and Disorders Vol.23 No.2
배경 및 목적: 청각장애인들은 부족한 의사소통 능력으로 인해 인간관계에서 끊임없이 좌절을 경험하고, 사회 적응에 여러 제약을 받아 건청인과 비교하여 상대적으로 낮은 삶의 질을 보인다. 본 연구는 인공와우이식을 받은 선천성 농 성인과 건청 성인 간의 의사소통 관련 삶의 질(quality of communication life, QCL)을 비교하여 QCL의 하위요인별(의사소통 효능감, 자아 존중 및 역할, 일상생활 참여, 의사소통 태도) 차이를 파악하고, 그들의 의사소통 능력(단음절 단어검사의 음소점수, 이음절 단어검사의 음소점수, 문장검사 단어점수, 조음정확도, 수용어휘 점수) 중 QCL을 예측할 수 있는 변인을 알아보고자 하였다. 방법: 만 19-39세의 인공와우이식 선천성 농 성인 18명과 생활연령을 일치시킨 건청 성인 18명을 대상으로 QCL에 대한 설문을 진행하였고, 인공와우이식 선천성 농 성인의 의사소통 능력을 평가하였다. QCL의 하위요인에 따라 집단 간의 유의한 차이가 있는지를 살펴보기 위해 t-검정을 실시하였고, 의사소통 능력과 인공와우이식 선천성 농 성인의 QCL 간의 관계를 살펴보기 위해 피어슨 상관분석을 실시하였다. 또한 인공와우이식 선천성 농 성인의 QCL에 대한 예측 변인을 알아보고자 다중회귀분석을 실시하였다. 결과: 인공와우이식 선천성 농 성인의 QCL은 건청 성인에 비해 유의하게 낮았고, QCL의 하위요인별 분석에서는 ‘의사소통 효능감’, ‘일상생활 참여’, ‘의사소통 태도’에서 인공와우이식 선천성 농 성인의 점수가 유의하게 낮게 나타났다. 또한, 의사소통 능력 중 듣기능력(단음절, 이음절, 문장)과 조음정확도가 QCL과의 상관을 보였으며, 그 중 이음절 듣기능력이 QCL에 대한 30% 정도의 예측력을 보였다. 논의 및 결론: 인공와우이식을 받은 청각장애인은 성인이 되어서도 듣기능력과 말산출 능력 향상을 위한 중재를 꾸준히 받는 것이 QCL을 향상시키고, 궁극적으로 전반적인 삶의 질을 증진시킬 수 있음을 시사한다. 또한 언어장애전문가는 QCL 측정을 통해 더 효율적인 개별 중재 프로그램을 제공할 수 있는 근거 자료를 확보할 수 있다. Objectives: The present study was designed to compare the quality of communication life (QCL) between prelingually deafened adults with cochlear implants (ACI) and adults with normal-hearing (ANH), seeking to determine the relationship between QCL and communication abilities of ACI while investigating the predictors of QCL. Methods: The QCL scale of 18 ACI and 18 age-matched ANH was measured. Communication abilities of ACI, such as listening, receptive vocabulary and articulation were also evaluated. A t-test was conducted to examine the differences between the groups according to sub-factors of QCL. Pearson correlation analysis was performed to examine the relationship between the communication ability and QCL of ACI. Finally, multiple regression analysis was performed to evaluate predictor factors of QCL for ACI. Results: ACI scored significantly lower than ANH on the QCL scale. They also showed significantly lower scores among the sub-factors of QCL: communication efficacy, daily life participation, and communication attitude. Among the communication abilities, listening ability (monosyllabic word, bisyllabic word, sentence) and articulation accuracy were correlated with QCL. Also, bisyllabic word listening ability was significantly correlated with QCL, predicting 30.2% of QCL. Conclusion: The results of this study suggest the need to improve QCL of ACI by participating in aural rehabilitation programs and that improving listening ability will have a positive influence on the overall quality of life of adults with cochlear implant.
이슬기 ( Lee Seul-gi ),최경숙 ( Choi Kyung-sook ) 한국농촌계획학회 2021 농촌계획 Vol.27 No.3
Recently, natural disasters caused by climate change have become more frequent across the world. Our country is also not exceptional, and it is urgent to come up with appropriate measures in the agricultural sector as the size and intensity of drought are becoming severe. Consequently, the Ministry of Agriculture and Food has continuously raised the need for efficient water management and governance to overcome the periodic drought. Thus, there is a need for water-saving education and water conservation governance for sustainable and efficient use of agricultural water. Governance is a cooperative mechanism involving various stakeholders, such as central, local, civil society, and businesses, to solve regional or social problems, with different definitions and concepts depending on the field or scope. In this study, we aim to present basis of a governance framework for direct water management participation involving the key agricultural water use stakeholders to imbibe the culture of water savings and conservation practices. Based on this, water-saving governance was established and operated in Gyeongju and Yeoju, in South Korea as a ‘water conservation practice’, while the water management status of local farmers, the reliability and importance of stakeholders, and the need for governance were investigated. The results indicate that the involvement of various stakeholders in the governance of water management yielded water-saving effects. This study provides the directions of making a framework for water-saving governance establishment and operation. It is expected that sustainable agricultural water use can be achieved in response to climate change if the governance builds and operates with agricultural water use stakeholders based on the continuous government supports.
GIS를 이용한 산림성 조류의 서식지 예측 모형 및 지도구축
이슬기 ( Seul Gi Lee ),정성관 ( Sung Gwan Jung ),박경훈 ( Kyung Hun Park ),김경태 ( Kyung Tae Kim ),이우성 ( Woo Sung Lee ) 한국지리정보학회 2010 한국지리정보학회지 Vol.13 No.1
조류는 복잡한 생태계의 상태를 평가하는 대표적인 생물 지표종으로써, 서식지 관리를 통한 효율적인 보전이 필요하다. 이에 본 연구는 창원시를 대상으로 산림성 조류의 서식지에 영향을 미치는 서식지 변수를 GIS기법으로 추출하여 서식지 예측 모형을 제시함으로써 향후 서식지 보존을 위한 유용한 기초자료를 제공하고자 하였다. 연구결과, 135지점에 출현한 산림성 조류는 총 5목 15과 26종 922개체로 나타났다. 또한 산림성 조류의 종다양도를 종속변수, 서식지 변수들을 독립변수로 하여 서식지 예측모형을 구축한 결과, `식생지수`, `계곡으로부터의 거리`, `혼효림으로부터의 거리`, `밭 면적` 등 4개의 변수가 유의성을 가지는 것으로 분석되었으며, 이들의 설명력은 51.3%로 나타났다. 다음으로 모형의 정확도를 검증한 결과, 상관계수 0.735, 절대평균오차비율(MAPE) 20.7%로 비교적 합리적인 예측으로 판단되었으며, 구축된 모형을 활용하여 서식지 예측지도를 제작하였다. 이 지도는 현장조사를 근거로 조사되지 않은 지역의 종다양도를 예측 할 수 있어 향후 서식지 보존을 위한 전략수립에 유용한 기초자료로 활용 가능하리라 판단된다. A bird is needed efficient conservation through habitat management, as the representative of an organism to evaluate the steady of complex ecosystem. So, this study will offer the useful basic data for preserving habitat from now on, as presenting a estimating model with the GIS program which selected factors effecting the habitat of a forest-dwelling bird in Changwon. As the resort of the survey, the number of forest-dwelling birds living in the 135 survey sites were 5 order, 15 family, 26 species and 922 individual. Also, as the result of making habitat analysis into a predict model, `NDVI`, `Distance to valley`, `Distance to mixed forest` and `Area of field` were significant and they had R-squares of 51.3%. Next, as the resort of researching the accuracy of Model, it was a reasonable prediction, as the correlation coefficient is 0.735 and MAPE is 20.7%, and a predict map of habitat was made with the model. This map could predict species diversity of no investigated areas and could be an useful basic data for preserving habitat, as an on-the-spot survey.
탈유비퀴틴화 효소 DUBs의 비만 및 대사 관련 질환에서 병태생리학적 기능
이슬기(Seul Gi Lee),권택규(Taeg Kyu Kwon) 한국생명과학회 2022 생명과학회지 Vol.32 No.6
유비퀴틴화는 단백질 안정성 조절을 통해 진핵세포 내 광범위한 과정에서 주요한 역할을 한다. 이 과정에서 탈유비퀴틴화 효소인 deubiquitinating enzymes (DUBs)은 표적단백질의 유비퀴틴 혹은 ubiquitin-like proteins에 결합하여 표적단백질의 분해를 억제하는 기능을 한다. DUBs의 역할은 주로 암생물학에서 다루어져 왔으며, 이를 통해 다양한 암 치료용 DUBs 억제제가 개발 중인 상황이다. 한편, 최근의 연구는 이러한 DUBs가 비만, 당뇨, 지방간을 포함한 대사질환에서 주요한 역할을 할 수 있을 것이라고 보고했다. 대사질환의 발생 및 진행에 있어 각기 다른 종류의 DUBs는 양적 혹은 음적 조절 작용을 갖음을 제시하였다. DUBs는 세포 내 다양한 전사인자의 단백질 발현 등 조절함으로써 대사질환의 발생 및 진행에 기여할 수 있음 생체 내, 외 및 인간 조직을 활용한 연구에서 입증되었다. UCH, USP7 및 USP19는 지방세포의 분화, 체중 증가, 및 인슐린 저항성에 관련이 있음을 식이 혹은 유전자조작으로 인한 비만 유도 마우스에서 검증하였다. CYLD, USP4 및 USP18의 경우 지방간의 발생과 밀접한 관계를 갖는다고 보고되었으며 이는 경우에 따라 체중 변화를 동반한다. 종합적으로, 본 총설에서는 비만 및 이와 관련한 대사질환에서 DUBs의 역할에 대한 최신 연구 결과 및 동향에 대해 기술하였다. 또한 DUBs에 새로운 역할에 관한 기초지식 및 분자적메커니즘을 제공함으로써 궁극적으로는 DUBs가 대사질환의 새로운 유전자 타겟이 될 수 있음을 시사한다. Ubiquitin signaling regulates virtually all aspects of eukaryotic biology and dynamic processes in which protein substrates are modified by ubiquitin. To regulate these processes, deubiquitinating enzymes (DUBs) cleave ubiquitin or ubiquitin-like proteins from these substrates. DUBs have been implicated in the pathogenesis of cancer, leading to the development of increasing numbers of small-molecule DUB inhibitors. On the other hand, recent studies have focused on the function of DUBs in metabolic diseases such as obesity, diabetes, and fatty liver diseases. DUBs play a positive or negative role in the progression and development of metabolic diseases. Their involvement in cell pathology and regulation of major transcription factors in metabolic syndrome has been examined in vitro and in animal and human biopsies. UCH, USP7, and USP19 were linked to adipocyte differentiation, body weight gain, and insulin resistance in genetic or diet-induced obesity. CYLD, USP4, and USP18 were found to be closely associated with fatty liver diseases. In addition, these liver diseases were accompanied by body weight change in certain cases. Collectively, in this review, we discuss the current understanding of DUBs in metabolic diseases with a particular focus on obesity. We also provide basic knowledge and regulatory mechanisms of DUBs and suggest these enzymes as therapeutic targets for metabolic diseases.