• 해양환경안전학회지
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• 제19권2호
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• pp.225-231
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• 2013

일반적으로 액체가스운반선은 인화성 화물이나 독성물질을 운반한다. 이러한 화물들은 폭발, 화재 및 인명손상을 가져올 수 있기 때문에, 액체가스운반선의 거주구역, 서비스 구역 및 통제실은 가스의 유입이 원천적으로 차단되도록 설계한다. 이러한 이유로, IMO IGC 코드의 멤브레인형 LNG선박의 화물탱크에 설치되는 벤트 출구의 높이는 노출갑판상 B/3 또는 6m 중 큰 것 이상으로 하고 작업구역 및 전후부 통행로, 갑판상의 저장탱크 및 화물설계 액위보다 6m 이상 높게 설치하여야 한다라고 규정하고 있다. 또한 LNG 시장이 점진적으로 증가하면서, LNG선박의 크기도 증가해 왔다. 때문에 현 규정에 의하면 LNG선박의 벤트의 높이는 선박 폭(B)에 비례하기 때문에 상당히 높아져야 할 것이며, 이는 높은 벤트 마스트(Mast)로 인하여 작업의 어려움 및 전방 시야를 방해하는 등 항해의 어려움을 초래한다. 본 연구에서는 멤브레인형 LNG선의 Sea-trial시에 측정하였던 데이터 및 CFD유동해석을 통해 LNG선박 화물탱크의 벤트 출구의 높이에 대한 적합성 평가를 수행한다.

• 한국분말재료학회지
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• 제9권6호
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• pp.409-415
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• 2002

In this review the methods for production and processing of isolated or agglomerated nanoscale metal particles embedded in organic liquids (nanosuspensions) and polymer matrix composites are elucidated. Emphasis is laid on the techniques of inert gas condensation (IGC) and high pressure sputtering for obtaining highly porous metal powders ("nanopowder") as well as on vacuum evaporation on running liquids for obtaining nanosuspensions. Functional properties and post-processing are outlined in view of applications in the fields of electrically conductive adhesives and anti-microbially active materials for medical articles and consumer goods.mer goods.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2011년도 추계학술대회
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• pp.26-28
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• 2011

지구 온난화를 방지를 위한 국제적 환경규제가 강화되고 이에 따른 선박의 배기가스 규제가 현실화됨에 따라 친환경 선박의 개발 및 운영이 필수적이다. 따라서 세계적인 친환경 선박의 개발 추세를 분석한 결과 최적으로 고려되는 LNG연료를 사용하는 선박의 효용성을 구체적으로 살펴보고 이의 건조를 위한 IMO 법령 등 국제적 동향을 살펴보았다. 또한 이를 근거로 LNG 연료선박의 국내 도입을 위하여 우리나라 관련 법령의 제정 노력 결과와 선박건조 시범사업을 소개하고 향후 추진해야 할 사항을 점검하였다.

• 대한조선학회지
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• 제41권2호
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• pp.86-93
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• 2004

일반적으로 액화암모니아, LPG, 메탄, 부탄 등을 운송하는 가스운반선은 가스를 비등점 이하의 온도로 낮춰서 액화하여 운송하는 선박으로, 가스의 비등점이 -3$0^{\circ}C$에서 -4$0^{\circ}C$ 내외의 저온이므로 대기압 상태에서는 냉각되어 액화상태 약 -48$^{\circ}C$ 유지로 화물탱크에 저장 운반되어야 하는 여러 가지 제약조건이 따른다. 이러한 가스를 보관하는 탱크는 주로 저온에 강한 니켈강을 쓰게 되며 완벽한 고도의 용접기술을 필요로 하고, 저온상태의 화물 저장 운송을 위해서는 대형 냉동기와 보온설비도 필요하다. (중략)

• 한국분말재료학회지
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• 제9권1호
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• pp.38-42
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• 2002

Effects of chemical compositions on the sintering behavior of the lead borosilicate glass developed for barrier ribs of plasma display panels were investigated in this study. Formation of pores during sintering of the glass was noted and their formation mechanism was investigated using XPS, TG/DTA, and XRD. The results indicated that pores are formed by the oxygen released from Pb-oxides during sintering.

• 한국초전도학회:학술대회논문집
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• 한국초전도학회 2002년도 High Temperature Superconductivity Vol.XII
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• pp.86-86
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• 2002

• Journal of Preventive Medicine and Public Health
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• 제49권4호
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• pp.197-204
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• 2016

Objectives: In the context of the global decrease in mortality due to gastric cancer, previous studies have reported that the effect of chronic Helicobacter pylori (H. pylori) infection on the incidence of gastric cancer varies among regions. This systematic review was conducted to investigate H. pylori as a risk factor for gastric cancer in Korea, where the incidence of gastric cancer is among the highest in the world. Methods: A search strategy was established to identify articles published in Korean as well as in English. Ultimately, we included observational studies conducted among Korean patients that designed with an age-matched and sex-matched control group that reported the odds ratio associated with H. pylori. Gastric cancer cases were subdivided into overall (OGC), cardia (CGC), non-cardia (NGC), early (EGC), advanced, intestinal (IGC), and diffuse forms of gastric cancer. Summary odds ratios (SORs) with 95% confidence intervals (CIs) were calculated in the meta-analysis using a random-effect model. Results: Eleven case-control studies were ultimately selected. H. pylori was associated with an SOR of 1.81 (95% CI, 1.29 to 2.54) for OGC. Additionally, statistically significant risks were observed for CGC, NGC, EGC, and IGC. Conclusions: Chronic H. pylori infection was found to raise the risk of gastric cancer among Koreans, with the highest risk observed for CGC and EGC (SOR=2.88 for both). Follow-up clinical epidemiologic studies are needed to assess the effects of current treatments aimed at eradicating H. pylori infections.

• 대한조선학회 특별논문집
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• 대한조선학회 2009년도 특별논문집
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• pp.6-17
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• 2009

The present paper addresses development of a GTT NO96 membrane type 170K m3 LNG carrier targeted to operate in moderate ice infested seas including Baltic Sea, Sakhalin port of Sea of Okhotsk, Murmansk port of Barents Sea, etc. Critical design issues are covered in detail to meet the requirements coming from the missioned operation conditions comprising low design ambient temperature, harsh wave conditions, stringent environmental protection policies, etc.

• 한국초전도저온공학회:학술대회논문집
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• 한국초전도저온공학회 1999년도 제1회 학술대회논문집(KIASC 1st conference 99)
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• pp.39-42
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• 1999

The characteristics of Nb3Sn strands shich will be used for the been investigated. The physics requirements for the KSTAR operation demands the two conditions, high non-Cu critical current density and low contradictory to each other. It is recent that superconductor manufacturers. IGC and Mitsubishi, have succeded in the production of the strand which satisfies the ITER HP-1 and HP-2 conditions at the same time. It has been determined that this type of strand, so-called HP-3, will be used for the KSTAR magnets and its properties, critical current density and hysteresis loss investigated by the several institutes are presented here. On the basis of the round robin tests for many strand samples under various optimized and the vendor will be seleted.

• 한국마린엔지니어링학회:학술대회논문집
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• 한국마린엔지니어링학회 2011년도 전기공동학술대회 논문집
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• pp.3-6
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• 2011

The utilization of gas as ship fuel requires a new set of regulations by IMO and society of classification. Maritime Safety Committee(MSC) and the subcommittee Bulk-Liquids and Gases(BLG) in IMO developed "Interim Guidelines on Safety for Natural Gas-fueled Engine Installation in Ships(Res.MSC.285(86))" for the use of natural gas in internal combustion engine. According to the requirement of Res.MSC.285(86) for natural gas-fueled engine installations in ships, several parts of ships should follow safety criteria in terms of Fuel bunkering, Gas safe Machinery spaces, Gas Fuel Storage and etc. In this thesis, details of the IGF code shall be described and development of the IGF code in IMO shall be illustrated.