• 대한설비공학회지:설비저널
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• 제18권3호
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• pp.289-297
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• 1989

• 무역상무연구
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• 제54권
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• pp.261-282
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• 2012

The European Union (EU) has introduced the EU Emissions Trading Scheme (EU ETS) as one of the key policies to reduce the level of greenhouse gas emissions and in July 2008, they decided to include aviation in the scheme. As soon as the decision was announced the EU ETS was met by sharp opposition from world governments and international aviation. A group of US airlines, in particular, dropped a lawsuit against the British government over aviation's inclusion in the EU ETS. On 21 December, the Court of Justice of the European Union (CJEU) ruled that aviation's inclusion in the EU ETS which covers all flights arriving into and departing from the EU is legal and does not contravene international law. The scheme eventually came into effect on 1 January 2012. However, most countries are in opposition to the EU ETS and have agreed on counter-measures to undermine the EU's plan which may bring chaos to the aviation industry if such measures were to put into practice. This study therefore will analyze the likely effects that may be brought to the Korean aviation industry as a result of the inclusion of aviation in the EU ETS. Further, it hopes to contribute to the Korean aviation industry by studying other countries' counter-measures in advance.

• 한국가스학회지
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• 제8권4호
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• pp.55-61
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• 2004

본 논문에서는 발전소의 발전기 냉각시스템에서 수소를 사용하므로써 발생가능한 문제점에 대한 안전대책에 관하여 언급하였다. 수소가스는 가연성 기체중 폭발범위가 대단히 크므로 이에 따른 안전대책을 강구해야 하며, 이것은 전력설비의 안정적인 운영을 위해서도 중요한 일이다. 본 연구에서는 1) 수소의 연소폭발재해와 관련된 기술적 지침을 제공함; 2) 운영환경의 위험수준에 따라 위험장소 구분하고 그에 따른 방폭전기설비의 채용; 3) 가스누설검지장치 설치 등 수소로 인한 재해를 미연에 방지할 수 있는 대책 및 기준 마련; 4) 발전소 정상운전중 안전관리체계를 정립하여 발전소 수소가스설비관련 안전관리의 표준모델을 제시하고자 하였다.

• 한국기계연구소 소보
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• 통권16호
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• pp.117-126
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• 1986

Trouble-free operation of cooling water systems is essential for efficient pro¬duction in most industrial facilities. Improper water treatments frequently cause such problems as corrosion, scaling, fouling and slime formation. Water quality, methods of cooling and materials of construction in the cooling circuit should be carefully studied before making selection of the water treatment programs. This paper reviewed cooling water problems encountered frequently in the open recirculating cooling systems and discussed the counter measures how to cope with them.

• Strategy21
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• 통권41호
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• pp.85-107
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• 2017

The purpose of this article is to explore recent developments in piracy attacks at the global level. This article provides an overview of global trend of recent piracy attacks and presents global counter-piracy efforts at the international and governmental as well as industry level. The issue of piracy has been a grave concern of the globe, becoming the biggest threat to the safety and security navigation and seaborne trade. Overall, piracy attacks in recent years have greatly diminished owing to multi-faceted counter-piracy efforts. However, Southeast Asia and West Africa have reemerged as an hotspot of piracy. A worrisome trend in these regions is that many of piracy attacks are committed by militant groups for financing their activities. As a result, the level of violence and the sophistication of attacks have escalated. The problem of contemporary piracy is beyond a particular region or coastal state, but a common concern of the international community. In order to address the global piracy problem, international cooperation should be further strengthened at the global level as well as the regional level. As a way of counter-piracy measures in Southeast Asian waters, the creation of a joint regional coast guard to patrol the highly piracy concentration areas needs to be considered.

• 한국정보통신학회논문지
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• 제24권7호
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• pp.885-890
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• 2020

거리측정 시스템에서 사용되는 시간-디지털 변환회로는 시작신호와 멈춤신호 사이의 시간 간격을 이용하여 거리를 측정한다. 응답속도를 고려한 시간 간격은 일반적으로 카운터 회로를 이용하여 디지털 정보로 변환한다. 그러므로 정밀도 향상을 위해서는 높은 주파수의 클록 신호가 요구되며, 미세 거리의 측정을 위해서도 높은 주파수의 클록 신호가 필요하다. 본 논문에서는 동일한 주파수를 사용하면서도 거리 측정의 정밀도를 높이기 위한 카운터 회로를 설계하였다. 회로의 설계는 0.18㎛ CMOS 공정을 이용하였으며, 설계된 회로의 동작은 HSPICE 시뮬레이션을 통하여 확인하였다. 시뮬레이션 결과 일반적인 카운터 회로를 사용한 경우에 비해 4배의 향상된 정밀도를 얻을 수 있었다.

• 대한수의학회지
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• 제46권1호
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• pp.27-34
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• 2006

This paper describes the slaughter check results of breeding pigs from the Korean Swine Testing Station for the control of endemic diseases. Gross lesions monitored in the present study included those conditions commonly associated with economically significant subclinical herd infections: enzootic pneumonia, pleuropneumonia, pleuritis, atrophic rhinitis, liver white spots, papular dermatitis and ileitis. A total of 128 slaughter pigs were investigated at 4 subsequent tests according to the slaughter check procedures established. The prevalence of enzootic pneumonia, pleuropneumonia and pleuritis in the initial test was 67.9%, 28.6% and 17.9%, respectively. However, these were decreased to 46.7%, 6.7% and 6.7%, respectively, in the last test after implementation of counter measures including clean-up protocols and medication programs (p > 0.05). The mean pneumonic score also significantly decreased from 6.8 in the initial test to 2.8 in the last test. The prevalence of atrophic rhinitis (${\geq}score\;2$) was 32.2% and mean atrophic rhinitis score of 1.1 were recorded. However, no significant improvement of conditions was achieved with the counter measures indicating that atrophic rhinitis was originated from the source herds and lesions developed early in the life. In the initial test, prevalence of liver white spots and papular dermatitis lesions was 21.4% and 25.0%, respectively. These conditions were cleaned by the implementation of parasite control measures with all-in all-out, strict clean-up protocols and proper medications adopted in the present study (liver white spots, p = 0.0124; papular dermatitis lesions, p = 0.0055). The prevalence of ileitis lesions in slaughter pigs from the initial test was 28.6%, it could be gradually reduced by the use of repeated treatments and control measures but the effect was not so significant (p > 0.05). In conclusion, slaughter check procedures were successfully established and applied for the control of endemic diseases in the Korean Swine Testing Station.

• 문화기술의 융합
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• 제9권6호
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• pp.789-793
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• 2023

대드론체계 평가란 예상되는 다양한 드론위협에 대한 대응능력을 확인하는 것으로 방호대상 시설에 대한 안전성을 확인하고 식별된 미흡사항을 보완하기 위함이다. 최근 북한 소형무인기에 의한 수도권 도발은 사회적 충격을 주었고 대드론체계를 통한 국가중요시설의 안전성 확보가 무엇보다 중요하게 강조되고 있다. 연구진은 최근 국가중요시설 중 일부에 대해 대드론 방호능력에 대한 현장검증을 실시한 바 있다. 그러나 아직까지 표준화된 평가기준이 없어 군사혁신 사고과정을 통한 대드론체계 평가점검표를 정립하였다. 본 연구는 우크라이나-러시아 전쟁과 같이 드론위협이 갈수록 증가하는 추세에 국가중요시설에 대한 대드론체계를 올바르게 진단하기 위해 확인해야 할 사항을 '대드론체계 평가점검표'로 구체화하여 제시하였다.

• 한국콘텐츠학회:학술대회논문집
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• 한국콘텐츠학회 2011년도 춘계 종합학술대회 논문집
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• pp.217-218
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• 2011

우리나라는 외국인 출입국자와 불법체류자의 증가에 따른 출입국시스템의 강화와 인터넷의 영향으로 인한 이슬람 과격단체, 홈그라운(homegrown) 테러리스트 그리고 북한의 도발행위 등 테러대책의 역점을 두기 위한 종합적인 접근을 모색하기 위해서는 '컨트롤 타워'와 '인터넷 테러 감지 센터'의 설립으로 관계기관간의 네트워크화가 필요할 것이다.

• 대한교통학회:학술대회논문집
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• 대한교통학회 2007년도 제57회 학술발표회논문집
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• pp.239-248
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• 2007