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불완전 분류식 하수처리구역의 강우에 의한 하수도시설의 침입수/유입수 영향 분석
신정섭,강선홍,한상원,육준수,이춘구 대한상하수도학회 2019 상하수도학회지 Vol.33 No.3
The purpose of this study was to analyze the effects of sewerage facilities through I/I analysis by rainfall by selecting areas where storm overflow diverging chamber is remained due to the non-maintenance drainage equipment when the sewerage system was reconstructed as a separate sewer system. Research has shown that wet weather flow(WWF) increased from 106.2% to 154.8% compared to dry weather flow(DWF) in intercepting sewers, and that the WWF increased from 122.4% to 257.6% in comparison to DWF in storm overflow diverging chamber. As a result, owing to storm overflow diverging chamber of partially separate sewer system with untreated tributary of sewage treatment plant, rainfall-derived infiltration/inflow(RDII) has been analyzed 2.7 times higher than the areas without storm overflow diverging chamber. Meanwhile, infiltration quantity of this study area was relatively higher than that of other study areas. Therefore, it is necessary to reduce infiltration quantity through sewer pipe maintenance nearby river. Drainage equipment maintenance should be performed not to operate storm overflow diverging chamber in order to handle the appropriate sewage treatment plant capacity for rainfall because it is also expected that RDII due to rain will occur after maintenance. In conclusion, it is necessary to recognize aRDII(allowance of rainfall-derived infiltration/inflow) and to be reflected it on sewage treatment plant capacity because aRDII can occur even after maintenance to the complete separate sewer system.
코로나19 재난 지원금과 유권자의 정치적 지지: 대통령 직무수행 평가와 정부신뢰 변화를 중심으로
신정섭 세종연구소 2022 국가전략 Vol.28 No.1
본 연구는 정부의 코로나19 재난지원금이 유권자의 정치적 지지에 미치는 영향을 설문조사에 기초하여 경험적으로 분석하였다. 분석결과 코로나19 재난 지원금이 가계경제에 도움이 되었다고 평가할수록 유권자의 대통령 직무수행 긍정평가가 높았으며, 정부에 대한 신뢰 역시 높아졌다고 응답하는 것으로 나타났다. 더 나아가 코로나19 재난 지원금에 대한 평가가 대통령 직무 수행 평가에 미치는 영향은 소득수준이 높아질수록 약해지는 것으로 나타났다. 그러나 정부신뢰 변화의 경우에는 유의미한 영향을 미치지 않는 것으로 나타났다. 정당일체감의 경우에는 대통령 직무수행 평가와 정부신뢰 변화 모두에서 무당파 유권자들이 여당이나 야당 지지자들 보다 코로나19 재난 지원금 평가에 더 큰 영향을 받는 것으로 나타났다. 그러나 대통령 직무수행 평가에 있어서는 무당파와 야당 지지자의 차이가 유의미하게 나타나지 않았으며, 정부신뢰 변화에 있어서는 여당 지지자와 무당파의 차이가 유의미하지 않게 나타났다. This study empirically examines the effect of the COVID-19 stimulus package on electoral behavior by analyzing individual-level survey data. The results demonstrate that voters who perceive that the COVID-19 stimulus package helps their household economy not only have higher positive presidential approval, but also answered their government trust had increased since the COVID-19 outbreak. Furthermore, the effect of the COVID-19 stimulus package on presidential approval weakens as the income level of a respondent increases. For both the presidential approval and government trust, non-partisan voters who do not support neither the government party nor the opposite parties are more likely affected by their perception of the COVID-19 stimulus package compared to partisan voters.
레이저 위치 센서의 레이저 스팟 크기에 따른 출력 특성 분석
신정섭,정보희,이강일,강지안,이은정,천수경,지호진 대한전자공학회 2022 전자공학회논문지 Vol.59 No.5
레이저 스팟 크기는 레이저 위치 센서의 광학계와 레이저 신호를 전기적 신호로 변환하는 4분할 레이저 검출기 사이의 거리로 결정되며, 레이저 위치 시스템의 핵심 설계 요소이다. 본 논문에서는 전산 시뮬레이션을 활용하여 레이저 스폿의 크기별 방향 정보를 계산하는 방법을 제안하고, 제작된 레이저 위치 센서 및 레이저 신호 생성 하드웨어를 사용하여 획득된 데이터와 분석한 결과를 기술한다.
구강악안면외과 소수술시 정맥 의식하 진정법에서의 Bispectral Index and Hemodynamics monitoring을 이용한 진정 깊이에 관한 연구
신정섭,민현기,이주현,이동현,김명래,강나라,Shin, Jung-Sub,Min, Hyun-Gi,Lee, Ju-Hyon,Lee, Dong-Hyun,Kim, Myung-Rae,Kang, Na-Ra 대한악안면성형재건외과학회 2008 Maxillofacial Plastic Reconstructive Surgery Vol.30 No.6
Purpose: The purpose was to assess the usefulness of midazolam in patients undergoing minor oral surgery under conscious sedation. Materials and methods: Bispectral index was examined in 20 patients receiving oral minor surgery with conscious sedation supplemented with local anesthesia. All patients included were ASA I and had no contraindications to the study medications. The patients were escorted to the day surgery operation room where, before the commencement of the sedation and surgical procedures, routine monitoring was applied, including the noninvasive monitoring of arterial blood pressure, arterial oxygen saturation, and 3-lead electrocardiogram (Electrocardiogram). Bispectral index electrodes were applied on the frontotemporal region after cleansing the skin with alcohol. Bispectral index was calculated with the Electrocardiogram monitor (A-2000; Aspect Co.). Midazolam was then titrated (initially 3mg wait 2min and 2mg). Vital sign and Bispectral index checked every 5 minute until the end of the procedure. The results were then compared. Results: The Bispectral index index values throughout the sedation study period alter many level. The index was dropped at 5 minutes after administration, but raised at injection and odontomy procedure. During the operation, mean Bispectral index index was higher than conscious sedation index range($60{\sim}80$). The amnesic effect was shown 17 cases out of 20 cases(85%). Conclusion: Conscious sedation technique using midazolma is a safe and effective method of controlling behavior in oral and maxillofacial surgery.