Raman Spectroscopy and Density Functional Theory Calculations of β-Glucans and Chitins in Fungal Cell Walls

이철민,조은민,양성익,Erdene Ochir Ganbold,Jehoon Jun,조광휘 대한화학회 2013 Bulletin of the Korean Chemical Society Vol.34 No.3

국내 라돈 연구 동향 및 다양한 환경에서의 농도분포 특성

이철민,박태현,백승재,김성규,곽정은,이동현,박현주 대한직업환경의학회 2016 대한직업환경의학회 학술대회 논문집 Vol.2016 No.11

TRIZ 프로세스 개선을 통한 새로운 접근방법론에 관한 연구

이철민,박동준,박재현 대한안전경영과학회 2017 대한안전경영과학회 학술대회논문집 Vol.2017 No.04

The TRIZ is promoted by Altshuller of the former Soviet Union. It stands for the beginning of Russian Teoriya, Reshiniya, Izobretatelskikh, and Zadatch, which means theory, solution, invention and problem. The TRIZ problem solving method is a generalized method for the abstract area to find a concrete solution, while the approach of the existing problem solving methodologies directly finds solutions through trial and error for the problems that have occurred. The original TRIZ was spotlighted as a creative problem solving methodology. However, we are unable to distinguish between the 39 parameters of the approach methodology and the 40 inventive principles. In this study, we propose a methodology to apply the weighting to the parameters and the principle of the invention to improve the problem of TRIZ. For this purpose, this study proposes a methodology based on AHP and QFD among industrial engineering methodologies. This result suggests that future researchers will be able to suggest better decision - making methods.

담배종결전을 위한 정책변화의 필요성

이철민 대한금연학회 2023 대한금연학회지 Vol.14 No.3

분자동역학 시뮬레이션을 이용한 불연속체 해석

이철민 한국진공학회 2013 한국진공학회 학술발표회초록집 Vol.2013 No.8

신종 담배(전자담배, 가열담배)의 쟁점: ‘담배의 해로움 줄이기’ 관점에서

이철민,김성렬,정유석 대한의사협회 2018 대한의사협회지 Vol.61 No.3

E-cigarettes, heat-not-burn (HNB) tobacco, and other new types of tobacco products are emerging in Korea. These products are particularly popular among smokers who are looking for less harmful means of tobacco consumption, and are highly relevant for existing tobacco control policies. E-cigarettes, which are electronic devices designed to allow the user to inhale nicotine as a vapor, are controversial in terms of their safety and effects on smoking cessation, as a variety of harmful substances have been detected in e-cigarette vapor. Due to policy differences in tobacco harm reduction, the regulations on e-cigarettes differ from country to country, and domestic regulations regulate e-cigarettes in a manner similar to conventional cigarettes. In contrast, HNB tobacco was introduced in Korea in June 2017, and is rapidly expanding in the market, as active marketing campaigns seek to communicate to consumers that HNB tobacco use involves no tar and is less harmful to health. However, the World Health Organization and several professional groups have argued that based on independent studies not supported by tobacco companies, HNB tobacco should be regulated in the same way as conventional cigarettes because there is no evidence that HNB tobacco is less harmful. Clinicians need to expand their understanding of new tobacco products so that they can provide appropriate counseling.

기록물관리기관과 도서관의 서고환경 내 실내공기질 비교

이철민,이정주,심인숙,봉춘근,박성진 한국실내환경학회 2010 한국실내환경학회지 Vol.7 No.3

The aim of this study is to estimate and compare indoor air quality(IAQ) at stock rooms in general library and in National Archives and to provide fundamental data in order to enact the law on management of IAQ at stock rooms in general library. The survey of IAQ in stock rooms was performed in Seoul National Archives in August 2009, and the basic data on level of indoor air pollutants in stock rooms at general library was collected from domestic journal. The concentration of NO2 was 114.1 ppb at audiovisual documentary stock rooms in National Archives. That value exceeded 50 ppb guideline that was legislated by the Korean Ministry of Public Administration and Security. The concentration of PM10 and VOCs were 59±9㎍/m3 and 367±83㎍/m3, respectively at stock rooms in general library. These values were exceeded from the guideline of Korean Ministry of Public Administration and Security that is 50㎍/m3 for PM10 and 400㎍/m3 for VOCs. Also, the exceeded probability from the guideline was 83.7% in PM10 and 35.6% in VOCs. Therefore, we suggest that a national plan for the management of IAQ at stock rooms in general library should be established.

[해외전력산업동향] 태양광의 배전망 접속 원활화를 위한 글로벌 동향

이철민 대한전기협회 2020 전기저널 Vol.- No.521

홍릉 숲의 곤충(개미와 지표성 딱정벌레)의 군집구조, 종다양성, 산림건강성

이철민,권태성 韓國林學會 2013 한국산림과학회지 Vol.102 No.1

본 연구에서는 곤충군집의 특성을 이용하여 도시숲의 산림건강성 평가를 시도하였다. 이를 위해 서울도심에 위치한 홍릉 숲에서 함정트랩법으로 개미(Formicidae)와 지표성 딱정벌레(Carabidae)를 조사하여 광릉 숲의 그것과 비교하였다. 여기서 광릉 숲은 잘 보존되고 생물다양성과 자연성이 높기 때문에 산림건강성이 높을 것으로 추정하였다. 광릉 숲에 비해 홍릉 숲은 개미는 매우 많았으나, 딱정벌레는 매우 적었다. 종다양성의 경우에는 종풍부도는 광릉 숲이 높았으나, 종다양도는 홍릉 숲이 높았다. 광릉 숲에서는 소수의 숲 특이종에 의한 우점 현상이 심한데 비해, 홍릉 숲에서는 숲 특이종과 일반종이 균형을 이룸으로서 다양도가 광릉 숲에 비해 높았다. 이와 같이 홍릉 숲은 광릉 숲과는 곤충군집의 특성이 많이 달랐다. 본 연구에서는 곤충군집의 특성을 이용하여 도시숲의 산림건강성 평가를 시도하였다. 이를 위해 서울도심에 위치한 홍릉 숲에서 함정트랩법으로 개미(Formicidae)와 지표성 딱정벌레(Carabidae)를 조사하여 광릉 숲의 그것과 비교하였다. 여기서 광릉 숲은 잘 보존되고 생물다양성과 자연성이 높기 때문에 산림건강성이 높을 것으로 추정하였다. 광릉 숲에 비해 홍릉 숲은 개미는 매우 많았으나, 딱정벌레는 매우 적었다. 종다양성의 경우에는 종풍부도는 광릉 숲이 높았으나, 종다양도는 홍릉 숲이 높았다. 광릉 숲에서는 소수의 숲 특이종에 의한 우점 현상이 심한데 비해, 홍릉 숲에서는 숲 특이종과 일반종이 균형을 이룸으로서 다양도가 광릉 숲에 비해 높았다. 이와 같이 홍릉 숲은 광릉 숲과는 곤충군집의 특성이 많이 달랐다. 본 연구에서는 곤충군집의 특성을 이용하여 도시숲의 산림건강성 평가를 시도하였다. 이를 위해 서울도심에 위치한 홍릉 숲에서 함정트랩법으로 개미(Formicidae)와 지표성 딱정벌레(Carabidae)를 조사하여 광릉 숲의 그것과 비교하였다. 여기서 광릉 숲은 잘 보존되고 생물다양성과 자연성이 높기 때문에 산림건강성이 높을 것으로 추정하였다. 광릉 숲에 비해 홍릉 숲은 개미는 매우 많았으나, 딱정벌레는 매우 적었다. 종다양성의 경우에는 종풍부도는 광릉 숲이 높았으나, 종다양도는 홍릉 숲이 높았다. 광릉 숲에서는 소수의 숲 특이종에 의한 우점 현상이 심한데 비해, 홍릉 숲에서는 숲 특이종과 일반종이 균형을 이룸으로서 다양도가 광릉 숲에 비해 높았다. 이와 같이 홍릉 숲은 광릉 숲과는 곤충군집의 특성이 많이 달랐다. The present study is aimed to evaluate forest health in a fragmented urban forest using characteristics of insect communities. Ants (Formicidae) and ground beetles (Carabidae) surveyed by pitfall trap method in the Hongneung forest located in the urban area of Seoul were compared with those in the Gwangneung forest. The Gwangneung forest is supposed to be health due to its high biodiversity and well-conserved nature. Ants of the Hongneung forest was much more abundant compared with those of the Gwangneung forest. However, ground beetles showed the opposite patterns; much more abundant in the Gwangneung forest than in the Hongneung forest. Species richness was higher in the Gwangneung forest than in the Hongneung forest, but species diversity was higher in the Hongneung forest. In the Hongneung forest, forest specialist species and generalist species were balanced, whereas few forest specialists dominated in the Gwangneung forest. This dominance decreased species diversity in those Gwangneung forest. Thus, characteristics of insect community in the Hongneung forest were greatly different with those in the Gwangneung forest.

TRIZ 프로세스 개선을 통한 새로운 접근방법론에 관한 연구

이철민,박동준,박재현 대한안전경영과학회 2017 대한안전경영과학회 학술대회논문집 Vol.2017 No.11

The TRIZ is promoted by Altshuller of the former Soviet Union. It stands for the beginning of Russian Teoriya, Reshiniya, Izobretatelskikh, and Zadatch, which means theory, solution, invention and problem. The TRIZ problem solving method is a generalized method for the abstract area to find a concrete solution, while the approach of the existing problem solving methodologies directly finds solutions through trial and error for the problems that have occurred. The original TRIZ was spotlighted as a creative problem solving methodology. However, we are unable to distinguish between the 39 parameters of the approach methodology and the 40 inventive principles. In this study, we propose a methodology to apply the weighting to the parameters and the principle of the invention to improve the problem of TRIZ. For this purpose, this study proposes a methodology based on AHP and QFD among industrial engineering methodologies. This result suggests that future researchers will be able to suggest better decision - making methods.