• Proceedings of the Korean Environmental Sciences Society Conference
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• 2020.10a
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• pp.45-45
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• 2020

• Journal of Distribution Science
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• v.7 no.2
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• pp.45-61
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• 2009

The aims of this paper is to examine the key factor of customer satisfaction in the medical service. Especially service waiting is a significant component of the customer's overall satisfaction with the service process. For this purpose, this study proposed 6 hypotheses as follow : H1 : Waiting cost, affect on perceived service waiting, will be different between patient customer group and health care group. H2 : Controllability of the cause, affect on perceived service waiting, will be different between patient customer group and health care group. H3 : Controllability of the cause affect on perceived service waiting, will be different between patient customer group and health care group. H4 : Waiting environment, affect on perceived service waiting, will be different between patient customer group and health care group. H5 : Transaction importance, affect on perceived service waiting, will be different between patient customer group and health care group. H1 : Waiting cost, Controllability of the cause, Controllability of the cause, Waiting environment, Transaction importance, customer satisfaction will affect on service waiting significantly This study find that 1) Waiting cost and Transaction importance are significant variables to influence customer satisfaction between patient group and health care group. 2) customer satisfaction is very important variables to minimize perceived service waiting.

• Korean Journal of Remote Sensing
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• v.37 no.6_2
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• pp.1859-1867
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• 2021

This study investigated seasonal characteristics of the particulate matter (PM) in the atmosphere and rainwater quality in Busan, South Korea, and evaluated the seasonal effect of PM₁₀ concentration in the atmosphere on the rainwater quality using multivariate statistical analysis. The concentration of PM in the atmosphere and meteorological observations(daily precipitation amount and rainfall intensity) are obtained from automatic weather systems (AWS) by the Korea Meteorological Administration (KMA) from March 2020 to August 2020. Rainwater samples (n = 216, 13 rain events) were continuously collected from the beginning of the precipitation using the rainwater collecting device at Pukyong National University. The samples were analyzed for pH, EC (electrical conductivity), water-soluble cations(Na⁺, Mg²⁺, K⁺, Ca²⁺, and NH₄⁺), and anions(Cl^-, NO₃^-, and SO₄^2-). The concentration of PM₁₀ in the atmosphere was steadily measured before and after the precipitation with a custom-built PM sensor node. The measured data were analyzed using principal component analysis (PCA) and Pearson correlation analysis to identify relationships between the concentration of PM₁₀ in the atmosphere and rainwater quality. In spring, the daily average concentration of PM₁₀ (34.11 ㎍/m³) and PM_2.5 (19.23 ㎍/m³) in the atmosphere were relatively high, while the value of daily precipitation amount and rainfall intensity were relatively low. In addition, the concentration of PM₁₀ in the atmosphere showed a significant positive correlation with the concentration of water-soluble ions (r = 0.99) and EC (r = 0.95) and a negative correlation with the pH (r = -0.84) of rainwater samples. In summer, the daily average concentration of PM₁₀ (27.79 ㎍/m³) and PM_2.5 (17.41 ㎍/m³) in the atmosphere were relatively low, and the maximum rainfall intensity was 81.6 mm/h, recording a large amount of rain for a long time. The results indicated that there was no statistically significant correlation between the concentration of PM₁₀ in the atmosphere and rainwater quality in summer.

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2003.11a
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• pp.59-60
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• 2003

지구온난화에 따른 기후변화, 오존층파괴, 산성비 등 지구환경 문제가 심각해짐에 따라 이를 정확히 파악하여 과학적 기초자료를 산출하기 위한 지구규모의 관측ㆍ수집ㆍ관리 및 이를 제공할 수 있는 체제 구축의 필요성이 절실히 대두되고 있는 실정이다. 이와 같은 환경여건 변화에 따라 환경부는 오존층 파괴물질 및 온실가스 농도를 분석하여 오존층 파괴 및 지구 온난화 등의 지구환경문제를 파악하고, 몬트리올 의정서, 기후 변화협약, 교토 의정서 등 국제환경 협약에 적극 대응하기 위해 1999년 4월 수립된 2000년대 대기오염측정망 기본계획에 따라 지구대기 측정망을 국가관리 측정망으로 확정하고, 우리 공단에 동 측정망 구축을 위탁하였다. (중략)

• The Science & Technology
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• v.29 no.10 s.329
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• pp.100-101
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• 1996

무독성으로 대기 수질오염이 없고 화재의 위험도 없는 수성 폴리우레탄을 개발한 부산대 고분자공학과 김병규교수. 자동차 범퍼에 이용되는 고분자합금 개발 등의 연구를 계속하고 있는 김교수는 앞으로 통신ㆍ환경분야 관련 고분자소재 개발에도 참여할 계획이다.

• The Science & Technology
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• v.30 no.2 s.333
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• pp.23-23
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• 1997

요즈음 자동차가 많이 늘어나 생활이 편리해졌지만 교통체증, 주차문제말고도 심각한 대기오염으로 우리의 건강을 위협하고 있다. 우리가 추구하는 과학기술의 연구가 자연환경을 크게 오염시키는 결과를 초래한다면 이 연구를 거부할만한 양식을 가져야 하고 만약 그 연구를 계속해야 한다면 환경오염 처리방법도 함께 연구해야 할 것이다.

• The Science & Technology
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• no.4 s.407
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• pp.94-95
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• 2003

「이달의 엔지니어상」 3월 수상자 수상/ 올해 산업기술개발에 5,446억원 지원/ 과기부, 2007년까지 1,200억원 투입 '나노특화Fab.센터' 구축 · 운영키로/ 청소년 3만 8,000여명에 무료 SW교육/ '세계 뇌주간' 국제뇌과학심포지엄 개최/ 환경성적표지인증 제품, 인터넷 공개/ 제8회 국제대기환경학술회의 성료

• The Bulletin of The Korean Astronomical Society
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• v.44 no.2
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• pp.63.1-63.1
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• 2019

1953년에 밀러와 유리는 초기 지구 대기와 해양을 모사하여 단순한 기체 조합으로부터 유기분자를 얻었다. 생명의 기원을 논할 때 언급되는 밀러유리 실험을 교육 현장에서 활용하고 현대적으로 해석하고자 2014년에 Parker 등에 의해 재조명되어 단순화된 장치로 실험실을 설계하여 전기방전 실험을 진행하였다. 실험장치에 사용한 유리기구는 산, 염기로 각각 세척하고 200도씨 오븐에 건조하였다. 300ml 의 물을 반응 플라스크에 넣고, 83mmHg(11kPa) 압력의 진공상태에서 암모니아 100mmHg, 메탄 200mmHg, 질소 100mmHg를 주입하였다. 총 16일의 실험 기간중 66시간 방전을 하였다. 전기 방전 색이 하늘색에서 보라색으로 바뀌는 것을 확인하고 분광스펙트럼을 얻었으며, 시간에 따른 대기조성의 변화를 해석하고자 한다. 이 실험은 교내 창의연구활동 (R&E와 졸업개인연구)의 하나로 2015년부터 학생 주도적으로 진행되고 있다.

• Journal of the Korean earth science society
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• v.22 no.2
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• pp.89-95
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• 2001

The purposes of the study are (1) to develop a Computer-Assisted Instruction (CAI) program to deal with middle school students' misconceptions on the concept of atmospheric pressure, and (2) to investigate the effects of the CAI on students' achievement and conceptual change. The findings of the study are as follows: (1) Misconceptions about atmospheric pressure found are similar to the ones identified in earlier studies, (2) A CAI program on atmospheric pressure was developed based on the students' misconceptions identified, and (3) The instruction using CAI program has very positive effects on students' science achievement and conceptual change.

• Journal of the Korea Institute of Military Science and Technology
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• v.9 no.4
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• pp.97-103
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• 2006

A synthetic infrared image can be effectively utilized in various fields such as the recognition and tracking of targets as long as its quality is good enough to reflect the real situations. One way to improve its quality is to use the reference atmosphere which best describes atmospheric properties of regional areas. The east asian reference atmosphere has been developed to represent atmospheric properties of the east asia including Korean peninsula. However, few research has been conducted to examine the effects of this east asian reference atmosphere on the modeling and simulation. In this regard, this paper analyzes the effects of the east asian reference atmosphere on a synthetic infrared image. The research compares the atmospheric transmittance, the surface temperature, and the radiance obtained by using the east asian reference atmosphere with those of the midlatitude reference atmosphere which has been widely applied in the east asia. The results show that the differences of the atmospheric transmittance, the surface temperature, and the radiance between the east asian reference atmosphere and the midlatitude reference atmosphere are significant especially during the daytime. Therefore, it is recommended to apply the east asian reference atmosphere for generating a synthetic infrared image with targets in the east asia.