COVID-19 2차 확산기가 도시열섬저감 사업의 지불의사금액에 미치는 영향 -장위동·서교동의 옥상녹화 사업을 중심으로-

주진호,이현경,김홍배 한국지역학회 2022 지역연구 Vol.38 No.3

본 논문의 목적은 감염병 조건이 도시열섬현상 저감을 위해 시행한 옥상녹화 사업에 대한 서울시민들의 지불의사금액에 미치는 영향을 파악하는 것이다. 이를 위해 감염병 조건과 비감염병 조건 하에서 옥상녹화 사업에 대한 지불의사액을 조건부가치추정법을 통해 산정 및 비교분석하였다. 그 결과 감염병 조건에 따른 지불의사액이 통계적으로 유의미한 차이가 있게 나타났고, 감염병 조건의 지불의사액이 비감염병조건보다 낮음을 확인하였다

자가용 승용차의 가구그룹별 통행특성 차이에 관한 연구

주진호,연지윤,장동익 대한교통학회 2014 대한교통학회지 Vol.32 No.4

우리나라에서 자가용 승용차는 전체등록차량의 약 74%의 정도를 차지하고 있고, 여객수송부문에서 차지하는 수단 분담비율도 약 60%(도보, 자전거, 기타 제외) 정도를 차지하는 주요 교통수단이다. 하지만, 자가용 승용차관련 보유 및 이용 관련한 통계는 전무한 상태일 뿐만 아니라, 분담율 산정의 기준이 되는 인-km 수송실적 자료조차 여객기종점통행량을 기초로 추정한 값을 사용하고 있다. 이에 한국교통연구원 국가교통DB센터는 '자가용이용실태조사'를통해 자가용 승용차의 이용 및 보유관련 다양한 통계자료를 구축하고자 하였으며, 본 연구에서는 ‘자가용이용실태조사’를 통해 구축된 통행자료 기반으로 가구인별 통행특성 차이를 분석하기 위해 ANOVA(Analysis of Variance)를실시하였다. 분석 결과, 가구 규모별로 모든 설명요인(주중 vs. 주말, 수도권 vs. 비수도권, 남성 vs. 여성, 출퇴근 시간 vs. 기타시간, 일상 vs. 비일상)간 차이가 있는 것으로 분석되었으며, 주말보다 주중이, 비수도권보다 수도권에서,여성보다 남성이, 출퇴근 시간이 기타시간보다, 비일상 통행보다 일상통행의 경우 통행당 거리가 길게 나타났다. 특히, 소인가구의 통행당 거리가 다인가구에 비해 상대적으로 짧게 나타나고 있음을 알 수 있었다. Passenger cars occupy about 74% among registered vehicles in Korea and the ratio of transportation modesharing is approximately 60% in the passenger transport part. However, there is no statistics related to travelcharacteristics of passenger cars, and official statistics are estimated from O/D travel data. Thus, NationalTransportation DataBase Center in KOTI has attempted to construct various statistical data through Korea VehicleUse Survey. Based on these data, Analysis of Variance (ANOVA) was conducted to investigate the differences intravel characteristics of each analysis group. As a result, all of the explanatory variables(weekday vs. weekend,metropolitan area vs. non-metropolitan area, male vs. female, commute time vs. other time, routine purpose vs. non-routine purpose) were found to be different across households. In addition, travel distances per trip ofweekday, metropolitan area, male, commute time, and non-routine purpose are longer than the opposite variables. Also, the trip distances of small size(1 to 2 persons) households are shorter compared to large size(more than 5persons) households.

Development of an LCD-Based Visual Field System

주진호,이진형,유희천,강자헌 대한의학회 2018 Journal of Korean medical science Vol.33 No.3

Background: The present study investigated the diagnostic effectiveness of an LCD-based visual field testing system (LVF) in comparison with the standard automated perimetry Humphrey Field Analyzer II-750i (HFA). Methods: A randomized controlled crossover study was conducted with 202 normal and 128 glaucomatous eyes using both LVF and HFA. The visual field testing systems were compared in terms of mean deviation (MD), pattern standard deviation (PSD), and area under the receiver operating characteristics curve (AUC) of MD and PSD differentiating the normal and glaucomatous eyes. Results: Significant correlations were found between MD measurements from LVF and those from HFA for normal eyes (r = 0.342) and glaucomatous eyes (r = 0.796); slightly higher significant correlations were identified between PSD measurements from LVF and those from HFA for normal eyes (r = 0.363) and glaucomatous eyes (r = 0.828). Furthermore, high AUCs of MD were found as 0.786 for LVF and 0.868 for HFA and AUCs of PSD as 0.913 for LVF and 0.932 for HFA. Conclusion: The comparison results of the present study support the competence of LVF compared with HFA in visual field testing for early detection of glaucoma.

Usefulness of Fast Oscillation Electrooculography in Chronic Central Serous Chorioretinopathy

주진호,최정한,문상웅 한국망막학회 2020 Journal of Retina Vol.5 No.2

Purpose: To confirm retinal pigment epithelium (RPE) function by using fast oscillation electrooculography (FO EOG) in patients with central serous chorioretinopathy (CSC) compared with normal controls. Methods: We retrospectively reviewed 22 eyes of CSC patients (7 with the acute form and 15 with the chronic form) and 20 eyes of normal controls who underwent FO EOG. The FO was measured in four groups of subjects: acute CSC, chronic CSC, fellow eyes, and normal controls. Light trough (LT) voltage, dark-peak voltage, and peak-to-trough (PT) ratios were recorded. Central macular thickness was also measured using spectral domain-optical coherence tomography. The CSC group and the normal group were compared. Results: In CSC eyes, the LT voltage decreased and the PT ratio increased significantly compared to the normal eyes (p = 0.013 and 0.024, respectively). We further divided the CSC group into acute (n = 7) and chronic (n = 15). In the chronic CSC group, the LT voltage decreased and the PT ratio increased statistically significantly compared to the normal eyes (p = 0.028 and 0.028, respectively). Conclusions: In CSC eyes, RPE function is altered as it progresses to chronic, and this functional change can be confirmed through the amplitude of the LT revealed by FO ERG.

Assessment of Soil Aggregates and Erodibility Under Different Management Practices in the Mountainous Soils

주진호,양재의,김정제,정영상,최중대,윤세영,유관식,Joo, Jin-Ho,Yang, Jae-E,Kim, Jeong-Je,Jung, Yeong-Sang,Choi, Joong-Dae,Yun, Sei-Young,Ryu, Kwan-Shig 한국토양비료학회 2000 한국토양비료학회지 Vol.33 No.2

Soil erosion in the hilly and mountainous uplands in the Daekwanryong area, Kangwon-Do, were investigated through a field plot experiment. The plot size was 15m long and 2.5m wide with the average slope of 12.5 percents. Soil erodibility factor (K), surface coverage (SC), soil aggregate percentage and wind erodibility (I) were evaluated in the mountainous soils under different management practices for corn and potato cultivations. Soil erodibility factor (K) was greater in upper part than in lower part of the plots. Surface coverage (SC) values ranged from 0.01 to 0.84 depending on the amounts of crop residues. Soils having a greater crop residue in surface were less subjected to soil erosion. SC values after corn harvest were 0.4 to 0.8, while those after potato harvest were 0.4 to 0.5, indicating potato might be better than corn for erosion control. Soil aggregate percentages of the experimental plots ranged from 49.7 to 79.8%. Those were higher in potato-cultivated plots with higher surface coverage, organic fertilizer treatment and contour tillage. Soil aggregate percentage of potato-cultivated plots was significantly correlated to crop residue coverage after harvest. The dried soil aggregate percentage, showing the ranges of 26.4 to 56.4%, were higher in the plots with the increased crop residue incorporation. Wind erodibility (I) of the soil was decreased with increasing surface coverage. When soil had 26.4% of the dried aggregate percentage, wind erodibility was estimated to be $183Mgha^{-1}$ which was equivalent to soil loss of $0.5Mg\ha^{-1}day^{-1}$. 강원도 평창군 도암면에 소재하는 농촌진흥청 고령지 농업시험장에 포장을 설치하여 옥수수와 감자 작부 체계 하에 토양의 토양피복인자 (SC), 내수성 토양 입단함량, 내풍식성 입단함량과 풍식성 인자 (I)를 조사하였다. 토양 침식인자 값 (K)은 실험 처리구의 상부가 하부보다 높았다. SC 값은 식물 잔재물의 양에 따라 다른 값을 보였으며, 0.01~0.84 이었다. 수확 후 식물 잔재물의 지면 피복도 (%)에 따른 SC 부요소 값은 옥수수 재배구에서 0.4~0.8 이며, 감자 재배구에서는 0.4~0.5이었다. 이는 감자 수확 시 잔재물이 옥수수 수확 시 잔재물에 비해 비교적 많이 남기 때문이었다. 시험 포지 토양의 입단함량 범위는 49.7~79.8%이었다 옥수수 재배구 중 화학비료 및 유기질 비료를 시용하고 등고선 경운 방법에 의한 처리구가 입단함량이 가장 높았다. 옥수수 수확 후의 피복도 (%)와 입단 함량 (%)의 관계는 회귀관계식이 성립되며, $r^2$는 0.96 이었다. 옥수수 재배구의 평균 입단함량이 감자 재배 포장의 평균 입단함량보다 다소 낮았다. 시험 포지 토양의 내풍식성 입단함량의 범위는 26.38~56.45% 이었다. 옥수수 재배구의 토양 입단 함량 (%)은 수확 후 잔재물과 유의성이 있었다. 옥수수 재배구 중 화학비료 및 유기질 비료를 시용하고 등고선 경운법에 의한 처리구의 경우 내풍식성 입단 함량은 26.42%로 풍식성 인자를 계산하면 $183Mgha^{-1}$이고, 토양의 휴조도 인자 (K')는 0.52이었다. 이에 따르면, 년 중 기상상태가 풍식이 일어날 수 있는 건조 상태일 경우 최대 풍식 가능량은 1일 $0.5Mgha^{-1}$에 해당하는 양이었다.

국가교통물류경쟁력지수의 가중치 검증과 지수 산정에 관한 연구 - 붓스트래핑 방법을 이용하여 -

주진호,연지윤,김찬성 한국교통연구원 2017 交通硏究 Vol.24 No.1

Among the various factors influencing national competitiveness, the transportation and logistics sector is significant. The Korean government regularly initiates surveys and evaluations resulting in the National Transportation and Logistics Competitiveness Index authorized in Articles 10 and 11 of laws related on National Transportation System Efficiency. This research aims to develop an indicator that accurately represents the National Transportation and Logistics Competitiveness by calculating an index that consistently evaluates competitiveness. To do this, we calculated the weight between indicators using the analytic hierarchy process (AHP). This weight is then verified using bootstrapping for calculating the final index. The results indicate Korea's comprehensive index ranked 21st (98.2). Safety is notably weak compared to other factors. Korea is responding by increasing investment and policy changes related to safety to enhance the National Transportation and Logistics Competitiveness Index. In this study, the researchers found it important that synthesized indicators and calculated comprehensive index on transportation verify the weight from AHP through statistical method. 세계시장의 글로벌화 ․ 개방화로 ‘국경’의 개념이 약해지는 반면 국가 간 경쟁은 심화됨에 따라 상대적으로 국가간 이동이 자유로운 교통 ․물류부문이 국가의 경쟁력을 나타내는 중요한 요인으로 작용하고 있다. 이에 정부에서는 「국가통합교통체계효율화법」 제10조와 제11조에서 국가교통물류지표를 설정하고, 이를 정기적으로 조사 ․ 평가할 것을 명시하였다. 따라서 본 연구에서는 국가교통물류경쟁력을 나타낼 수 있는 지표를 개발하고 지속적으로 평가할 수 있는 국가교통물류경쟁력지수 산정 연구를 진행하였으며, 국가교통물류경쟁력 지수 산정을 위해 AHP(Analytic Hierarchy Process) 조사를 통해 지표간 가중치를 산정하였고, 붓스트랩(Bootstrap) 기법을 통해 산정된 가중치를 검증하여 최종 지수 산정에 활용하였다. 산정 결과, 한국은 종합지수 21위(98.2) 수준인 것으로 나타났다. 우리나라의 교통물류경쟁력을 제고시키기 위해서는 ‘이동 및 접근성’, ‘안전성’ 부문을 집중적으로 개선할 필요가 있다. 구체적으로, 개별 가중치(중요도)가 가장 높게 도출된 국토계수당 유효도로연장, VKT당 교통사고사망자수 지표부문에 대한 투자 및 정책 개선이 필요한 것으로 보인다. 본 연구는 국제기구에서 각기 다른 지표 및 산정방식으로 발표되고 있는 교통부문의 지표체계를 일원화 하고, 모든 수단을 종합한 국가교통물류지수를 산정하였으며, 또한 Bootstrap 기법을 이용하여 가중치를 검증하였다는 점에 의의가 있다.

YBCO-Ag 초전도체의 열충격특성에 대한 연구

주진호 成均館大學校 科學技術硏究所 1997 論文集 Vol.48 No.2

The role of Ag additions on the resistance to thermal shock of YBCO superconductor wires has been studied. It was observed that addition of Ag to YBCO improved mechanical properties such as strength and fracture toughness. In addition, composite YBCO-Ag wires show a slower decrease in critical current density (J_c) than does monolithic YBCO as the number of thermal cycles increases. The improved resistance to thermal shock is believed to be due to improvement in mechanical properties and thermal conductivity of YBCO as a result of Ag addition.

Deposition of YBCO Films on Moving Substrate by a Spray Pyrolysis method

주진호,홍계원,김재근,홍석관,김호진,유석구,조한우,안지현,이희균 한국초전도학회 2006 Progress in superconductivity Vol.8 No.1

COVID-19 사회적 거리두기 정책이 서울 생활인구의 이동패턴에 미치는 영향 -시간대 및 연령대를 중심으로-

주진호,양정임,우호성,김우람,한효진 한국사진지리학회 2022 한국사진지리학회지 Vol.32 No.3

This study analyzed the impact of the number of COVID-19 confirmed cases and Social Distancing policies on living population patterns (time and age groups) in Seoul. As a result, it was found that the effect of reducing the living population by time zone was greater during the day than at night, and the younger generation by age group was greater than that of other age groups. There was a difference in the effect of social distancing policies on the movement pattern of the living population in Seoul by age group. Specifically, the ban on gatherings of five or more people and restrictions on business hours showed the greatest reduction in youth, while telecommuting and shortening subway operations showed the greatest reduction in middle-aged people. Through this, it was confirmed that measures to prevent infectious diseases such as COVID-19 in Seoul and social distancing policies should be implemented in more specific ways considering the time and age groups. In particular, it is necessary to strengthen quarantine measures centered on daytime hours, and measures to supplement them are needed as the effect of reducing the living population during night hours is insignificant.

에센셜 오일을 통한 열대거세미나방 살충효과 평가 및 분석

주진호,이영돈,안인,칼리드후세인 강원대학교 농업생명과학연구원 2022 강원 농업생명환경연구 Vol.34 No.2

The fall armyworm (Spodoptera frugiperda) is one of the main pests in corn (Zea mays L.). It reduces production by primarily damaging the leaves, stems, and fruits of corn, causing economic losses. Corn damage worldwide due to the fall armyworm is estimated to be at least $2,481 to $6,187 million. The insecticidal activity of five essential oils (rosemary, ginger, neem, lavender, and clove) on the 3rd instar stage of the fall armyworm was evaluated. The insecticidal activities of deltamethrin and five essential oils were evaluated using the immersion method. Rosemary and ginger essential oils showed the highest larval mortality (100% of fall armyworm larvae were killed) at a 1:500 dilution rate, whereas rosemary, ginger, neem, and clove essential oils, except lavender essential oil, showed 96% mortality at a 1:100 dilution rate. Using GC/MS analysis, the main compounds of rosemary essential oil were determined as 1,8-cineole (22.27%), a-pinene (15.01%), camphor (12.19%), b-pinene (8.11%), D-limonene (6.10%), and a-terpineol (4.97%). The results of this study suggest that rosemary and ginger essential oils could be used as potential biological control agents for controlling the fall armyworm.