이차전지용 건식 음극 공정 연구 개발 동향

송민주,송우진 한국고분자학회 2024 한국고분자학회 학술대회 연구논문 초록집 Vol.49 No.2

20-30대 남성의 외모관심도와 반영구 화장 인식 및 만족도의 상관관계

송민주,김선형 한국미용학회 2022 한국미용학회지 Vol.28 No.2

This study attempted to investigate correlations between appearance interest and perception and satisfaction with semi-permanent makeup against adult men in their 20-30s to provide basic data needed to develop marketing strategies which are useful in responding to semipermanent makeup markets for men. The results found the followings: In appearance interest, self-expression, appearance management and other orientation revealed a positive correlation with perception of semi-permanent makeup with statistical significance. They also had a positive correlation with physical factors, human services and retreatment intention with statistical significance. In addition, perception of semi-permanent makeup revealed a positive correlation with physical factors, human services and retreatment intention with statistical significance. As appearance management and other orientation increased, perception of semi-permanent makeup also rose. As appearance management, other orientation and self-expression were higher, physical factors and retreatment intention also increased. Furthermore, as self-expression and appearance management increased, satisfaction with human services improved. Furthermore, as perception of semi-permanent makeup increased, physical factors, retreatment intention and satisfaction with human services improved.

V2V 통신 기반 대형상용차 군집주행 안정성 향상을 위한 종방향 제어 기술 개발

송민주,박기홍 한국ITS학회 2018 한국ITS학회 학술대회 Vol.2018 No.04

COVID-19 보건소 대응인력의 초과근무시간과 지각된 스트레스, 우울, 불안과의 관련성

송민주,김준희,김현수,김성환,박재홍 대한생물치료정신의학회 2023 생물치료정신의학 Vol.29 No.3

Objectives: This study aimed to examine the association between overtime hours and perceived stress, depression, and anxiety among coronavirus disease 2019 (COVID-19) community health workers. Methods: Self-report data were collected from 1,181 community health workers in Busan between 15 June and 2 July 2021. The data collected were analyzed using analysis of variance and logistic regression to examine how average weekly overtime hours affect perceived stress, depression, and anxiety. Results: The proportion of individuals who perceived a high degree of stress was higher in the groups with average weekly overtime of 5-10 hours (odds ratio [OR] 1.81, 95% confidence interval [CI] 1.09-3.01) and 10 or more hours (OR 2.26, 95% CI 1.33-3.82) than in the group with average weekly overtime of less than 5 hours. Among the groups with average weekly overtime of 5-10 hours and 10 or more hours, the proportion of individuals at a high risk of depression was OR 1.74 (95% CI 1.31-2.31) and OR 3.39 (95% CI 2.53-4.54), respectively. In the same two groups, the proportion of individuals at a high risk of anxiety was OR 1.75 (95% CI 1.31-2.33) and OR 3.34 (95% CI 2.51-4.46), respectively. Conclusions: This study shows that perceived stress, depression, and anxiety levels significantly increase as average weekly overtime hours increase among COVID-19 community health workers.

이산화탄소 배출 저감을 위한 국제개발협력과 물류네트워크의 영향력 분석

송민주 한국국제상학회 2023 國際商學 Vol.38 No.4

Purpose : The purpose of this study is to analyze the causal relaionship between ODA, logistics, renewable energy, economic growth, and industralization on CO2 emissions Research design, data and methodology : From 2006 to 2019, panel data related to CO2 emissions, ODA, logistics networks, renewable energy, economic growth, and industrialization were collected from a total of 84 countries. To analyze this model, panel unit root tests and panel cointegration tests were performed to confirm the stability and long-term causal relationship of the data. Subsequently, panel FMOLS and panel DOLS were used to identify variables affecting carbon dioxide, and pairwise panel Granger causality analysis was used to analyze causality between these variable Results : According to panel FMOLS and panel DOLS analysis, ODA and renewable energy reduce CO2 emissions, but economic growth increase CO2 emissions. Conclusions : As a result of panel FMOLS and panel DOLS analysis, economic growth was identified as a factor in increasing CO2 emissions, and international development cooperation and renewable energy were identified as factors in reducing CO2 emissions.

지속가능한 성장을 위한 항공운송과 물류네트워크의 역할

송민주,이희용 한국국제상학회 2023 國際商學 Vol.38 No.2

Purpose : The purpose of this study is to analyze the impact of air transport, logistics networks, economic growth, and industrialization on CO2 emissions generated in the transportation sector Research design, data and methodology : Panel data related to air transport, shipping connectivity index, GDP, and industrialization was collected from 2006 to 2014, and panel unit root tests and panel cointegration tests were conducted to confirm the stability and long-term causal relationship of the data. Subsequently variables affecting carbon dioxide were identified using panel FMOLS and panel DOLS, and the causal relationship between these variables was analyzed through panel Granger causal analysis Results : According to panel FMOLS and panel DOLS analysis, air transport and logistics networks reduce carbon dioxide, but economic growth increases carbon dioxide emissions. Conclusions : From a logistics perspective, air transport is influenced by GDP, while logistics networks are impacted by carbon dioxide emissions generated in the transportation sector. However, when considering the long-term viewpoint, it has been recognized that these factors affect industrialization and GDP

남자 대학생의 화장품 소비현황 및 메이크업 인식에 관한 연구

송민주,김선형 한국미용학회 2019 한국미용학회지 Vol.25 No.2

This study aimed to provide basic data needed to develop marketing strategies for men’s cosmetics. The results found the following: Male University students tend to spend KRW 100,000-200,000 to buy cosmetics semiannually. When asked how much they spend to buy cosmetics per month for appearance management, ‘KRW 30,000-50,000’ was the most responded. In terms of perception of men’s makeup, ‘importance of appearance’ was the highest factor. According to analysis of differences in the perception of men’s makeup, respondents were mostly favorable to it as they were older. As dating experience and monthly allowance increased, perception of makeup utilization and makeup purchase was higher. As expenses for cosmetics increased, perception of men’s makeup, makeup utilization, acceptance of makeup and purchase of makeup increased. When the expenses for cosmetics were ‘KRW 100,000-200,000’, however, perception of the importance of appearance was relatively high. As average monthly expenses for cosmetics increased, perception of men’s makeup, makeup utilization, acceptance of makeup and purchase of makeup was high.

화물철도 노선별 운송 품목의 경쟁구조에 관한 연구 : 우리나라를 중심으로

송민주,이희용 한국무역학회 2019 무역학회지 Vol.44 No.4

development. Thus, the transportation system is also changing to social problems and environmental damage, and the importance of rail freight is increasing with changes in the international logistics environment. This study analyzes railway freight competition structure using freight volume and suggests improving the competitiveness of railroad freight. To achieve the research purpose, this study was conducted using the Hirshmann-Herfindahl Index(HHI) and Location Quotients(LQ) method. As a result, the concentration trend of railway trends has increased from 0.213 to 0.238 during the last 9 years, and LQ analysis has enabled the identification of local competition lines by item. The study result confirmed that policy measures on railway freight system, railway infrastructure construction and railway operation are necessary to enhance railway competitiveness.

새만금신항 활성화를 위한 전라북도 수출구조 분석에 관한 연구

송민주 한국무역학회 2022 무역학회지 Vol.47 No.4

The purpose of this paper is to analyze the import and export volume of Jeollabuk-do to establish a plan to activiation Saemangeum New Port. To this end, this study utilized the HHI(Herfindahl-Hirschman Index), LQ(Location Quotient) analysis using the annual data set from the Korea Trade Statistics Promotion Institution between 2015 to 2020. As a result, it has been confirmed that the degree of export volume concentration (HHI (Herfindahl-Hirschman Index)) in Jeollabuk-do has been increasing over the past 5 years. According to results of LQ(Location Quotient) analysis, Brazil had the highest index in the case of exporting countries, and Meat, edible meat offal (HS 2) had the highest index in the case of export items. This paper is meaningful in analyzing the export structure using import and export volumes and proposing a plan to improve the competitiveness of Saemangeum New Port.

생활치수치료: 미성숙영구치에서의 고려사항

송민주 대한치과의사협회 2025 대한치과의사협회지 Vol.63 No.2

Vital pulp therapy is a treatment procedure that has been applied to immature permanent teeth since pulp cap ping material made of calcium hydroxide was used. However, interest has decreased due to limitations in long term prognosis, but it has recently come into the spotlight again with the use of microscopes, disinfectants, and biocompatible materials. As the high success rate was reported, its application could also be considered for even mature permanent teeth. Immature permanent teeth have good blood flow and healing ability, so the prognosis for vital pulp therapy is good. However, the rapid rate of caries and the partial eruption state bring about various difficulties in the treatment process and can lead to failure. In this article, we will look at the characteristics of immature permanent teeth and share tips for actual clinical practice through clinical cases.