• Proceedings of the Safety Management and Science Conference
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• 1999.11a
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• pp.9-21
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• 1999

안전공학이 추구하는 사회적인 목표는 산업에 종사하는 사람들의 생명과 건강을 지키고, 재해에 의한 생산설비나 원자재, 제품의 손실을 막는 것이다. 광범위한 산업안전 연구 중에서 재해 통계 분석에 관한 연구는 다양한 종류의 재해에 관한 기초적 정보를 제공함으로서, 이에 따른 문제점의 파악이나 안전대책의 설정 등 안전관리에 있어서 의사결정이나 연구 방향을 결정하는 중요한 역할을 하고 있다. 현재 사업장 등에서 안전관리를 실시하는데, 안전수준의 평가로서 세계적으로 널리 이용되고 있는 계산식은 단위시간당의 재해발생 건수로 나타내어지는 도수율, 또는 근로자 1천만명당 재해발생 인원수를 나타내는 연 천인율이 등이 있다. 영국 A.H,A Wynn등이 광산재해의 예로 실시한 시간의 재해발생율의 차이를 재해발생 간격의 분포에 사용하여 검증했었다. 이것을 기반으로 재해발생 간격을 추정하고 검증함으로 재해발생 확률을 도출하여 안전관리의 새로운 척도를 제시하고자 한다. 이미 일본에서 많은 연구가 이루어져 왔으며, 이를 기초로 노동재해 발생수를 통한 통상의 검증법과 축차검증법의 이용으로 재해의 성향을 분석하여 그 결과를 재해의 예측에 이용함으로 재해예방을 실현하고자 한다. 그래서, 실제 국내에 정유공장의 데이터를 이용하여, 이 분포 알고리즘을 검증하는데 본 논문의 목적이 있다.

• Proceeding of EDISON Challenge
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• 2016.03a
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• pp.1-7
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• 2016

Triphenylsulfonium 양이온(TPS)은 잘 알려진 광산 생성자(photoacid generator, PAG)중 하나로 양이온성 중합반응(cationic polymerization)의 개시제로 널리 사용됐으며, 유기발광다이오드의 활성층, 폴리머 발광다이오드의 전자주입층을 구성하는 재료로도 사용되고 있다. TPS는 200nm 주변의 빛을 흡수하면 탄소-황 결합이 끊어져 페닐 라디칼과 diphenylsulfonium 양이온 라디칼로 분해되는 것이 알려져 있다. 본 연구에서는 밀도범함수이론과 시간의존 밀도범함수이론을 이용 triphenylsulfonium 이온의 광학적 특성을 조사하였다. 가장 안정한 구조를 기준으로 자외선 흡광 스펙트럼을 계산하였고, 실험값에 잘 맞는 것을 확인하였다. TPS의 빛에 의한 해리 과정을 알아보기 위해 페닐-황 결합 길이를 변화시키며 TPS의 흡광 스펙트럼을 계산, 여기상태 포텐셜 에너지 곡선을 구할 수 있었다. 결합의 분해에 이용되는 상태들은 주로 점유 분자 오비탈에서 최저준위 비점유 분자 오비탈(LUMO)로 들뜨는 성분을 가지고 있었는데, 이는 LUMO가 반결합성 오비탈이기 때문이다.

• Journal of Korea Society of Industrial Information Systems
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• v.11 no.5
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• pp.53-61
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• 2006

We propose public-oriented e-Marketplace framework construction that activates efficiently transaction of non-metal industrial resources through the case of Mineralland. The firms of Non-metal industrial resources domain have low information level and weak capital structure. So public enterprise has to construct e-marketplace to trade using exact market information. This framework consists of five domains-contents, commerces, communities, collaboration and electronic authentication. To draw this framework, we review many web-sites and literatures about B2B of industrial resources domain. In addition, this study provides practical implications and guidelines for activating public oriented e-Marketplace of non metal industrial resources.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• v.9 no.1
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• pp.763-766
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• 2005

Ubiquitous Computing owes Internet and development of computer network and appeared. RFID (Radio frequency Identification) technology is noted by point technology to realize this. However, PML that present in Auto-lD Center is defined point part to describe information of object, and necessary part is to use defining extension separately in actuality application. So that can define object type that can be used for electron tag data processing in RFID application service because do fetters to Auto-lD Center's PML Core in this treatise hereupon and apply in physical distribution circulation service field, designed object information data model.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.9 no.3
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• pp.555-560
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• 2005

Problem of compatibility, contents protection, contents circulation etc. was caused between contents offerer and consumers by indiscreet rights technical development about digital contents. Therefore, MPEG-21 framework proposed the REL(Right Expression Language) based on XML(extensible Markup Language) by rights expression language for rights management. We designed and implemented of the REL document editing system that rights creation and edit are available efficiently about contents easily without comprehension of MPEG-21 framework and client system that present consumption method of REL document.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• v.9 no.1
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• pp.663-666
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• 2005

Problem of compatibility, contents protection, contents circulation etc. was caused between contents offerer and consumers by indiscreet rights technical development about digital contents. Therefore, MPEG-21 framework proposed the REL(Right Expression Language) based on XML(eXtensible Markup Language) by rights expression language for rights management. We designed and implemented of the REL document editing system that rights creation and edit are available efficiently about contents easily without comprehension of MPEG-21 framework and client system that present consumption method of REL document.

• Geophysics and Geophysical Exploration
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• v.11 no.3
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• pp.221-229
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• 2008

The three dimensional model method is widely applied in resource development for feasibility study, mine design, excavation planning and process management by constructing the database of various data in 3 dimensional space. Most of geophysical surveys for the purpose of engineering and resource development are performed in 2 dimensional line survey due to the restriction of the field situation, technical or economical situation and so on. The acquired geophysical data are used as the input for the 2 dimensional inversion under the 2 dimensional assumption. But the geophysical data are affected by 3 dimensional space. Therefore in order to reduce the error caused by 2 dimensional assumption, the 2 dimensional inversion result must be interpreted considering the additional information such as 3 dimensional topography, geological structure, borehole survey etc. The applicability and usability of 3 dimensional modeling method are studied by reviewing the case study to the geophysical data acquired in field of engineering and resource development.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.14 no.1
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• pp.70-77
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• 2021

This paper was reclassified industries related to the 4th industrial revolution into manufacturing, information and communication services, finance and insurance services, and science and technology services by comparing the industry association table with the Korean standard industry classification. And the economic ripple effect was analyzed by exogenizing the four sectors of the industry using a demand-driven model. The wholesale and retail and product brokerage services were measured to be large in the manufacturing, information communication services, and science technology service sector according as a result of analysis of the production inducement effect, added value inducement effect, and employment inducement effect. And the financial and insurance services were analyzed to be large in the financial and insurance services sector. The import inducement effect was analyzed to be the largest in all sectors of the fourth industry. As a result of the forward and backward linkage effect, it was confirmed that the manufacturing and the information communication services sector were the intermediate primary production type sensitive to economic fluctuations. Also it was confirmed that the financial and insurance services and the science technology services sector were the final primary production type.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• v.9 no.2
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• pp.971-974
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• 2005

Science and technology-related societies in the interior of a country sum up to approximately 660, and are increasing yearly, due to the development of new research fields and segmentation of past studies. Such societies are contributed with latest academic research information, and the submitted studies go through an review process before publication. A majority of the societies employ the traditional off-line review method; various problems and issues occur in delay of submission, review, revision, and management of the numerous paper submitted and published. Therefore, this study suggests the design of, and implemented an on-line paper review system which processes on-line submission and review of paper, facilitates swift and review progress, and enables efficient control and management on general tasks and academic information through integrated administration of members and published works.

• Korean Journal of Microbiology
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• v.46 no.1
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• pp.1-8
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• 2010

New technologies are providing unprecedented knowledge into microbial community structure and functions. Even though nucleic acid based approaches provide a lot of information, metaproteomics could provide a high-resolution representation of genotypic and phenotypic traits of distinct microbial communities. Analyzing the metagenome from different microbial ecosystems, metaproteomics has been applied to seawater, human guts, activated sludge, acid mine drainage biofilm, and soil. Although these studies employed different approaches, they elucidated that metaproteomics could provide a link among microbial community structure, function, physiology, interaction, ecology, and evolution. These approaches are reviewed here to help gain insights into the function of microbial community in ecosystems.