• Proceedings of the Korea Information Processing Society Conference
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• 2022.11a
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• pp.995-996
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• 2022

본 논문에서는 태양광 발전에서 전류 측정 부면의 기존 센서를 사용한 방식에서 벗어나 센서를 사용하지 않고 전류를 측정하여 최대 전력점을 제어(MPPT)하는 방식을 제안한다. 이 시스템은 인공지능을 사용하여 전류를 예측, 추산하며, 최대 전력점을 보다 정확하고, 세밀하게 계산하여 추종한다. 그렇기에 본 논문에서는 이 시스템을 구축하기 위해 구성한 알고리즘을 제안한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2022.11a
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• pp.992-994
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• 2022

본 논문에서는 시각장애인의 안내견을 위한 인공지능을 활용한 객체 인식 기반 과속 탐지 알고리즘을 제안한다. 이는 안내견이 도로 상에서 이동용 장치를 인식하는 것을 도와줌으로써 위험 요소 탐지 능력을 향상시킬 수 있고, 시각장애인의 안전을 보장할 수 있다. 인식 시스템은 Yolov5를 활용하여 사물 학습 과정을 진행하였고, 이동용 물체의 인식 과정을 통해 속도 측정 및 주변 위험 요소를 구분하여 판단하게 하였다. 판단된 정보는 안내견에게 교육된 신호로 전달되고, 시각장애인을 안전하게 인솔하여 도로상의 사고를 사전에 예방할 것으로 기대된다.

• Journal of the Korean Applied Science and Technology
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• v.39 no.3
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• pp.397-406
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• 2022

This study is an experimental study on the single group pre-post test design for the effects of the exercise program combined with telephone coaching on postural balance, grip strength and depression of the elderly living alone. The subjects of this study were 20 elderly living alone who registered at a senior welfare center located in S City, Gyeonggi-do. A total of 12 session programs were applied from July 3 to October 14, 2021. Before and after the program, the participant's home was visited and 4 stage standing balance test(4 SBT), grip strength and depression were measured. The contents of the intervention consisted of elastic bands and grip balls, and weekly telephone coaching interventions were provided. In the result of this study, the exercise program combined with telephone coaching were statistically significant differences in 4 SBT(3stage)(t=-2.37, p=.029), 4 SBT(4stage)(t=-2.46, p=.024), right grip strength(t=-2.18. p=.042) and depression(t=2.82, p<.001). Therefore, it is expected that the exercise program combined with telephone coaching can be applied as a nursing intervention to improve postural balance, grip strength and reduce depression in the elderly living alone in the community.

• Construction Engineering and Management
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• v.22 no.1
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• pp.23-31
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• 2021

• Journal of the Korean Applied Science and Technology
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• v.39 no.1
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• pp.74-83
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• 2022

The purpose of this study was to investigate the effects of dysmenorrhea and stress on quality of sleep in nursing students. The subjects of this study were 248 nursing students and data collection was from April 20 to May 18, 2021. Data was analyzed using the SPSS/WIN 24.0 program by descriptive statistics, Pearson's correlation, multiple regression analysis. There was a positive correlation between dysmenorrhea(r=.20, p<.001) and stress(r=.24, p<.001). Grade, stress and dysmenorrhea were found to be factors influencing quality of sleep among nursing students. The results of this study suggest that it is necessary to develop some programs that include factors such as grade, stress and dysmenorrhea for nursing students' quality of sleep.

• Proceedings of the Korean Journal of Food and Nutrition Conference
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• 2004.07a
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• pp.51-51
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• 2004

본 연구에서는 성남지역노인들의 식습관 및 영양소 섭취실태를 조사하여 지역사회에 알맞는 영양개선 프로그램을 개발하기 위한 기초자료를 마련하고자 성남시 노인정에 등록된 노인 318명(남자 153명, 여자 165명)을 대상으로 설문지와 면접을 통한 24 시간 회상법을 이용하여 식습관과 영양 섭취량을 조사하였다. 조사 결과 균형 잡힌 식생활 태도의 점수가 대상자 모두에서 가장 낮은 것으로 나타났고 규칙적인 식생활 점수는 여자에 비해 남자 대상자들에서 유의적으로 높은 결과를 보였다(P＜0.05). (중략)

• The Korean Publising Journal, Monthly
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• s.222
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• pp.23-23
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• 1997

성남시 분당구의 백궁역에는 바쁜 걸음을 멈추게 하는 낯선 광경이 있다. 고요하게 독서를 하거나 저녁이면 가족과 함께 전시공간을 둘러보기도 한다. 70권으로 시작한 백궁역의 간이도서실은 이제 4천여권을 갖췄다.

• Journal of the Korean Geographical Society
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• v.35 no.4
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• pp.599-619
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• 2000

본 연구는 지난 30여 년 동안 두 번의 신도시개발 정책으로 인하여 이원적 도시구조를 지니게 된 성남시의 차별적 생성과 변화를 행위주체자로서 여성을 선택하여 그들의 생활세계-생활사, 사회.경제적 배경, 지역정체성, 지역사회의 관계, 일상과 생활공간-를 통하여 공간과 사회와의 관계에서 경험적으로 입증하고자 하였다. 그 결과 성남시는 차별성을 지닌 두 지역사회를 생성하게 되었으며, 각 장소의 행위주체자(여성)의 생활세계에 있어서도 차별적 특성을 나타내어 기존시가지 주부들은 신시가지에 <가까이 하려는> 경향을, 신시간지 주부들는 <구별짓기>의 경향을 나타내고 있었다. 또한 전업주부의 일상생활을 통해서 볼 때 기존시가지의 경우에는 오전에는 주로 부업활동에, 오후에는 주변 이웃과의 교제활동을 주로 함으로써 자신의 거주지를 생산현장으로서의 공간으로 형성해 가고 있는 반면 신시가지 주부들은 오전에는 사적인 생활 즉 여가활동에, 오후에는 자녀교육활동에 참여하는 등 자신의 거주지를 소비현장으로서의 공간으로 형성해 가고 있었다.

• Korean Journal of Environment and Ecology
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• v.22 no.2
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• pp.159-172
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• 2008

This study was carried out to obtain ecological information necessary for a conservation plan based on the distributional patterns, wetland types, and hydrophytic characteristics of urban wetlands in Seongnam City, Kyunggi Province where representing the various patterns of land use made by rapid urbanization since 1970s. Total 162 sites of four wetland types were identified as urban wetlands during the first survey. The sites were classified into 55 forested swamps, 4 riverine wetlands, 62 abandoned paddy fields, 37 small ponds, and 4 reservoirs, etc. The second survey targeted 107 sites which were identified as good wetlands. It showed that 42 sites(about 39%) were already degraded due to drainage, landfill, and crop cultivation at 6 months intervals. Both hydrologic conditions and hydrophytic characteristics of 27 good wetlands help maintain current ecological status, but most wetlands have been degraded by artificial impacts. Among 184 species identified, only 75 species(about 40.7%) were hydrophytes. Prevalence Index of hydrophyte based on three categories of OBL(obligatory wetland plant), FAC(facultitative plant), UPL(obligatory upland plant) was 3.7, indicating that vegetation data alone is inadequate to designate as wetlands. This study revealed that as critical habitats for wildlife they playa vital role in ecotone between both terrestrial and aquatic ecosystem with its proper distributional pattern in spite of their small areas compared to the entire geographic region of the City.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.40 no.4
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• pp.261-273
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• 2022

This study aims to predict the land use demand of Seongnam-city using system dynamics and to simulate the effect of changes in family structure and land use density adjustment policy on land use demand. This study attempted to construct causal loop diagrams and an analysis model. The changes in land use demand over time were predicted through simulation results. As a result of the analysis, as of 2035, an additional supply of 2.08 km² for residential land and 1.36 km² for commercial land is required. Additionally, the current supply area of industrial land can meet the demand. Three policy experiments were conducted by changing the variable values in the basic model. In the first policy experiment, it was found that when the number of household members decreased sharply compared to the basic model, up to 7.99 km² of additional residential land were required. In the second policy experiment, if the apartment floor area ratio was raised from 200% to 300%, it was possible to meet the demand for residential land with the current supply area of Seongnam-city. In the third policy experiment, it was found that even if the average number of floors in the commercial area was raised from four to five and the building-to-land ratio in the commercial area was raised from 80% to 85%, the demand for commercial land exceeded the supply area of the commercial area in Seongnam-city. This study is meaningful in that it proposes a new analytical model for land use demand prediction using system dynamics, and empirically analyzes the model by applying the actual urban planning status and statistics of Seongnam-city.