이동진료반(移動診療班) 치료(治療)에 의(衣)한 나종양환자(癩腫樣患者)의 균음전(菌陰轉)에 관(關)한 관찰(觀察)

한인수,Han, In-Soo 대한예방의학회 1974 Journal of Preventive Medicine and Public Health Vol.7 No.2

An observation on bacteriological conversion upon 56 bocteriological positives out of 131 cases of lepromatous leprosy treated by antileprosy morbile service was carried out. Those 131 lepromatous cases were a part of 335 total registered from three Guns of Gangjin, Hwa sun, and Goheung, Cheollanamdo, since 1957 to 1973 that has been under the control of antileprosy morbile unit. The results obtained are summalized as follows, 1. Lepromatous type was 36.9% of all cases. The ratio of male to female was 4.9 to 1. Age between 30-44, the most productive ages, occupied 38.0% and age over 60 occupied 18.0% of all. 2. 42.7% of lepromatous type was bacteriological positive. 43.1% was for male and 43.1% was for female. Age between 20 to 24 shown the highest positive at 63.7% and followed by aged over 60 (62.5%) and under 19 (60.0%). The lowest one was seen at age between 40 to 44 at 29.2%. 3. Bacteriological positive rate at registration was different in accordance with duration of treatment received befor registration. It came up to the highest 100.0% at the group treated one year before registration. That of the group not received any treatment was 56.4%, and the group received 4-5 years was the lowest at 26.1% 4. Bacteriological conversion rate was 44.6% and 14.3% of all positive casese regressed in bacterial number. 37.5% of all active cases converted bacteriologically within 5 years. 5. Bacteriological conversion rate in group received 1 year treatment before registattion was 66.6%. That in group not received any treatment was 31.8% and group received 4-5 years was 33.3%. 6. Considering of total duration reaseved treatment together with before and after registration, 33.9% of all active cases resulted bacteriological conversion or regression within 5 years.

Negative Pressure Pulmonary Hemorrhage after Laryngospasm during the Postoperative Period

한인수,Bo Mi Han,Soo Yeon Jung,윤준로,정은용 대한중환자의학회 2018 Acute and Critical Care Vol.33 No.3

플라스틱 소재의 고 변형률 인장특성 평가를 위한 홉킨스바(Split Hopkinson Pressure Bar) 측정 장비에 관한 연구

한인수,이세민,김규원,김학성,Han, In-Soo,Lee, Se-Min,Kim, Kyu-Won,Kim, Hak-Sung 한국복합재료학회 2022 Composites research Vol.35 No.3

Split Hopkinson Pressure Bar (SHPB) is a general test equipment for measuring the mechanical properties of high modulus metal and composite materials at high strain rate. However, for the soft plastic material, it is difficult to hold the specimen and achieve dynamic stress equilibrium due to the weak transmitted signals. In this study, SHPB test apparatus were designed to measure accurately the high strain rate stress-strain curve of the soft plastic materials by changing the incident bar materials and the shape of the specimen holder parts. In addition, to verify the high strain-rate tensile strain data obtained from SHPB, the strain distribution of the specimen was measured and analyzed with a high-speed camera and the digital image correlation (DIC), which was compared with the strain history measured from SHPB.

Methylthioisocyanate 합성반응 공정의 열적위험 특성

한인수 ( In Soo Han ),이근원 ( Keun Won Lee ),이주엽 ( Joo Yeob Lee ) 한국안전학회 2012 한국안전학회지 Vol.27 No.5

TLM 방법을 이용한 한국형 고속열차내의 전자계 해석

한인수(Han In-Su),한영재(Han Young Jae),이태형(Lee Tae-Hyung),박춘수(Park Choon Soo),김기환(Kim Ki Hwan) 한국철도학회 2008 한국철도학회 학술발표대회논문집 Vol.- No.-

As the industry develops, they are interested in the fault of electric machines and the effect on human beings by electromagnetic fields and waves which generate through much use of electric machines and appliances. In foreign country, they confirmed the standard about electromagnetic interference and compatibility(EMI/EMC) of electromagnetic fields and waves generating electricity transmission/distribution equipments and electric appliance. In Korea, such criteria are applied too. Before EMI/EMC standard is applied, it is important to prepare the plan to predict and reduce electromagnetic fields and waves which generate in the inner and the outer part of electric machinery. To solve such a problem, they calculated Maxwell"s equations by finite element method(FEM) and finite difference method(FDM) in most papers. However, these methods have the disadvantage that mathematical expansions are complex and need much memory allocations for grid and mesh generations In this paper, we introduce transmission line matrix(TLM) method that media of which trains consists are regarded as transmission lines for electromagnetic field calculation in Korean High Speed Train, calculate the electric and magnetic field, and analyze the results.

벌크 중합법에 의한 폴리스티렌 중합공정의 열적 위험성

한인수(In-Soo Han),이정석(Jung-Suk Lee) 한국가스학회 2013 한국가스학회 학술대회논문집 Vol.2013 No.5

벌크 중합법에 의한 폴리스티렌 중합공정의 열적위험성

한인수(In-Soo Han),이정석(Jung-Suk Lee),이근원(Keun-Won Lee) 한국가스학회 2013 한국가스학회지 Vol.17 No.4

본 연구에서는 벌크 중합법을 이용한 폴리스티렌 중합공정의 폭주반응에 대한 열적 위험성을 가속속도열량계(ARC)와 소규모 반응열량계(MM)를 이용하여 평가하였다. 당해 중합공정은 반응온도 120 ℃~ 130 ℃로 운전되어져야 하며, 130 ℃ 이상의 반응온도에서는 반응 생성물의 급격한 점도 증가로 인하여 반응기의 온도제어 실패에 따른 폭주반응의 위험성이 존재하였다. 또한 당해 중합공정의 반응온도(120℃ ~ 130 ℃)에서 공정운전 초기에 반응기의 냉각실패가 발생할 경우 폭주반응으로 인해 반응기의 온도와 압력이 각각 30 ~ 50분 이내에 약 340 ℃, 5.3 bar 까지 급격히 상승하여 반응기의 파열판이 파열되거나 반응기가 폭발할 수 있는 열적 위험성이 높게 나타났다. The aim of this study is to assess thermal hazards of polystyrene polymerization process by bulk polymerization with accelerating rate calorimeter(ARC) and Multimax reactor system(MM). From this study, we found out that the polymerization process should be operated at reaction temperature of 120 ℃ ~ 130 ℃. At reaction temperature over 130 ℃, there was a runaway reaction hazard due to the temperature control failure following a viscosity increase of reaction products. With a cooling failure of a reactor in the early stage of process operation at the reaction temperature (120℃ ~ 130 ℃), there was a high thermal hazard of burst of a reactors rupture disk or explosion of a reactor caused by the rapid rise of temperature and pressure to 340 ℃, 5.3 bar respectively within 30 - 50 minutes.

다중벽 탄소나노튜브의 분진폭발 특성

한인수 ( In Soo Han ),이근원 ( Keun Won Lee ),최이락 ( Yi Rac Choi ) 한국화학공학회 2017 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.55 No.1

가연성 분진이 제조·취급되는 공정에서의 분진폭발 위험성은 항상 존재한다. 그러나 산업현장에서 취급되는 분진에 대한 분진폭발 특성 정보는 아주 미흡한 실정으로 사업장에서는 화학사고 예방대책 수립에 어려움을 겪고 있다. 본 연구에서는 입도분포가 다른 두 종류의 다중벽 탄소나노튜브(MWCNT)에 대한 분진폭발 특성을 실험적으로 조사하였으며, NFPA 499 Code를 적용하여 MWCNT 제조·취급 공정의 분진폭발 위험장소 구분을 검토하였다. 그 결과 평균입도가124.2 μm인 MWCNT 1의 P_max, K_st, LEL, MIE, 및 MIT는 각각 6.3 bar, 56 bar·m/s, 125 g/m³, 1000 mJ 초과 및 650 ℃ 초과로 나타났다. 평균입도가 293.5 μm인 MWCNT 2의 P_max, K_st, LEL, MIE, MIT는 각각 6.2 bar, 42 bar·m/s, 100 g/m³, 1000 mJ 초과 및 650 ℃ 초과로 나타났다. NFPA 499 Code에 따른 MWCNT 1, 2의 폭발강도와 점화감도는 각각 0.35와 0.01 미만으로 나타났기 때문에 MWCNT는 NFPA 499 Code에서 제시된 분진폭발 위험장소로 구분하여야 하는 가연성 분진으로 분류되지 않았다. Dust explosion hazards are always present when combustible dusts are manufactured or handled in the process. However, industries is experiencing difficulty in establishing chemical accident prevention measures because of insufficiency of information on dust explosion characteristics of combustible dust handled in industry. In this study, we investigated experimentally dust explosion characteristics of two kinds of multi-walled carbon nano tubes (MWCNT) different in particle size distribution and examined classification of dust explosion hazardous area for MWCNT manufacturing or handling process by applying the NFPA 499 code. As a result, P_max, K_st, LEL, MIE and MIT of MWCNT 1 having 124.2 μm median diameter are obtained 6.3 bar, 56 bar·m/s, 125 g/m³, over 1000 mJ, and over 650 ℃. P_max, K_st, LEL, MIE and MIT of MWCNT 2 having 293.5 μm median diameter are 6.2 bar, 42 bar·m/s, 100 g/m³, over 1000 mJ, and over 650 ℃, respectively. MWCNT 1, 2 are not categorized as combustible dust listed in the NFPA 499 Code for classification of dust explosion hazardous area because explosion severity and ignition sensitivity of MWCNT 1, 2 are below 0.35 and 0.01, respectively.

방글라데시의 봉제업

한인수(In-Soo Han),엄금화(Jin-Hua Yan) 서울대학교 아시아연구소 2016 아시아리뷰 Vol.6 No.1

방글라데시 봉제업은 중국에 이어 세계 2위의 수출을 기록하고 있으며 국가의 연간 수출액의 80%를 차지하는 중요한 사업으로 국가 경제와 고용 창출에 크게 기여해 왔다. 그러나 최근의 타즈린(Tazreen) 공장 화재나 라나 플라자(Rana Plaza)의 붕괴 등 일련의 참사로 열악하고 위험한 근로 환경과 근로자의 고통이 전 세계인의 주목을 받게 되었다. 이 글에서는 방글라데시의 봉제업이 지닌 명암과 일련의 참사의 배경을 탐구하고자 했다. 우선 방글라데시 봉제업의 역사적 발전 과정을 살펴보고 거시경제, 여성의 임파워먼트, 빈곤 감소 등에 대한 기여를 알아보았다. 또한, 현재 봉제업 근로자가 처한 근로 조건과 작업 환경을 여러 측면에서 자세하게 분석했다. 그리고 근로자가 처한 이러한 현실이 세계화의 과정에서 필연적으로 나타나는 ‘바닥으로의 경주 현상’인지 아니면 빈곤 탈출의 과정에서 불가피하게 겪어야 하는 희망을 향한 하나의 과정인지에 대해 논의했다. 끝으로 방글라데시 봉제업의 초창기 기여자이며 이 분야의 가장 큰 투자자인 한국 기업들을 위한 시사점도 제시했다. The garment industry has been an extremely important part of Bangladesh’s economy for a long time. Bangladesh is the world’s second biggest exporter of garments after China. Readymade garments make up 80 percent of the country’s $24 billion in annual exports and 15 percent share of GDP. But a series of industrial accident like the Tazreen factory fire and the Rana Plaza collapse attracted much attention of the world for the harsh and dangerous reality facing Bangladesh garment workers. It has also led to widespread discussion about corporate social responsibilities across the global supply chains. This paper investigates the bright and dark side of Bangladesh garment industry and the real background of a series of industrial disasters. At first, it describes the historical development of Bangladesh garment industry and its contribution to the macro economy and the empowerment of women and poverty reduction of Bangladesh. This paper also investigates the working conditions of garment workers including low wage and long working hours. Other addressed topics include unsafe environment, poor social compliance and labor rights, unstable industrial relations, illegal labor practices, including others. This paper also discusses the debates on the validity of “a race to the bottom” as a theory that could explain the reality facing the Bangladesh garment industry. Lastly some implications are suggested for Korean clothing companies in Bangladesh that have been the leading foreign investors in the garment sector.

반도체 증착공정 원료물질의 열안정성

한인수(In-Soo Han),이근원(Keun-Won Lee) 한국가스학회 2016 한국가스학회 학술대회논문집 Vol.2016 No.6