• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2008년도 추계학술발표대회
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• pp.325-327
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• 2008

In electrical industry, classification methodology has been an important issue for analyzing power consumption patterns. It has many applications including decisions on energy purchasing, load switching as well as helping in infrastructure development. Our aim in this work is to classify the electrical section and find potentially non-safe electrical sections. For this purpose, we use Emerging Patterns based classification. The classification method uses the aggregate score of emerging patterns to build classifier. The proposed methodology was applied to a set of electrical section data of the Korea power. The test data and relational electricity information and knowledge are supported by Korea Electric Power Research Institute (KEPRI).

• 한국컴퓨터산업학회논문지
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• 제2권2호
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• pp.123-130
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• 2001

데이터베이스의 크기가 증대함에 따라, 데이터의 분석 및 데이터베이스로부터의 지식 습득필요성이 대두되고 있다. 데이터 마이닝 기법은 그 대표적인 예이다. 대부분의 마이닝 대상 데이터 집합은 규모가 매우 크고, 데이터베이스 내에 저장되어 있다. 효과적인 마이닝 기능을 구현하기 위해서는 기존의 데이터베이스로부터 분석 대상 데이터 집합을 추출하고, 일반화시켜 함께 유지 관리함이 요구된다. 본 논문에서는 새로운 미이닝 연산자를 정의함으로써 기존 SQL 언어를 확장하여 릴레이션으로부터 분석 대상 데이터를 도메인 중심 방법으로 추출 후 일반화시킨다. 분석 대상 애트리뷰트 값과 일반화된 정보를 포함하는 배경지식은 관계형 데이터베이스의 릴레이션과 동일한 구조로 저장 및 관리된다. 또한 본 논문에서 제안된 배경지식 추출을 수행하는 SQL 유사 연산자와 집단 함수를 예제를 통하여 그 사용 예를 보임으로써, 마이닝 표현력을 나타낸다.

• 한국자동차공학회논문집
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• 제22권2호
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• pp.29-36
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• 2014

The accident statistics use the data from police accident reports and statistics. Although the official accident statistics are useful, they provide very limited information about how accidents occur, the cause of the accident and the injury mechanisms. This limitations could be overcome by carrying out the in-depth accident study and analysing investigations, collecting more detailed information. Meanwhile a net of in-depth investigation teams are operating worldwide, such as NASS (National Accident Sampling System) and CIREN (Crash Injury Research and Engineering Network) in US, OTS (On the spot investigation) in UK. In this study, the database structure and variables of Korea in-depth accidents investigation system would be proposed through considering the database structure of GIDAS (Germany In-Depth Accidents Study). GIDAS is one of the best system on the in-depth accident study system in the world. GIDAS was established in 1999 as a cooperation project between Federal Highway Research Institute of Germany (BASt) and research association on automotive engineering of German Car Industry(FAT). The iGLAD (Initiative for the Global Harmonization of Accident Data) was also considered to introduce into the database variables of Korea in-depth accident study. Current police reports were compared with GIDAS and iGLAD. To collaborate of the Worldwide in-depth accident data, this paper proposed that the database of Korea in-depth accident study would be introduced the structure of GIDAS and the core variables of iGLAD. Harmonization of the structures and core variables of Korea in-depth accident study will be better than the making unique ones. The database structure and core variables of KIDAS(Korea In-Depth Accident Study) introduced of GIDAS and iGLAD.

• 디지털콘텐츠
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• 1호통권68호
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• pp.131-133
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• 1999

Online Information Meeting은 명실공히 콘텐트나 정보 산업 부문에 있어서 세계 최대의 전시 이벤트이다. 금년도로 22회째 맞는 Online Information Meeting은 한국데이터베이스진흥센터가 국내관련 업계의 종사자들과 함께 수년전부터 매해 참관단을 파견하여 온 국제 전시 및 컨퍼런스이다. 국내 경제가 어려워 부득이 참관단은 구성하지 못하고, 마침 영국의 DTI(Department of Trade&Industry)방문 계획이 있어 일정을 Online Information Meeting 개막일에 맞추었다.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2007년도 정기학술발표대회 논문집
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• pp.234-238
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• 2007

플랜트 산업은 종합적인 사업으로 관련산업의 파급효과가 크며 고부가가치사업인 반면, 기술력을 갖추기 위해서는 장기간에 걸친 투자가 필요하며, 업계 공동 혹은 국가적인 차원에서 플랜트 산업의 장기 발전전략을 수립하여 지속적으로 추진할 필요가 있다. 플랜트 산업의 해외 수주현황 및 성공요인을 공유할 수 있는 시스템의 구축이 필요한 실정이다. 이에 본 연구는 산업설비 중 해외 플랜트 산업을 주축으로 사례조사를 실시, 특성요인의 통계적 분석을 실시하였으며, 향후 플랜트 산업의 기술력 향상을 위한 방법의 일환으로 D/B(Data Base)구축을 위한 기초자료로 사용하기위해 연구를 수행하고자 한다.

• Animal Bioscience
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• 제36권8호
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• pp.1285-1292
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• 2023

Objective: The objective of this study was to develop a novel endolysin (PanLys.1) for the specific killing of the ruminal hyper-ammonia-producing bacterium Peptostreptococcus anaerobius (P. anaerobius). Methods: Whole genome sequences of P. anaerobius strains and related bacteriophages were collected from the National Center for Biotechnology Information database, and the candidate gene for PanLys.1 was isolated based on amino acid sequences and conserved domain database (CDD) analysis. The gene was overexpressed using a pET system in Escherichia coli BL21 (DE3). The lytic activity of PanLys.1 was evaluated under various conditions (dosage, pH, temperature, NaCl, and metal ions) to determine the optimal lytic activity conditions. Finally, the killing activity of PanLys.1 against P. anaerobius was confirmed using an in vitro rumen fermentation system. Results: CDD analysis showed that PanLys.1 has a modular design with a catalytic domain, amidase-2, at the N-terminal, and a cell wall binding domain, from the CW-7 superfamily, at the C-terminal. The lytic activity of PanLys.1 against P. anaerobius was the highest at pH 8.0 (p<0.05) and was maintained at 37℃ to 45℃, and 0 to 250 mM NaCl. The activity of PanLys.1 significantly decreased (p<0.05) after Mn²⁺ or Zn²⁺ treatment. The relative abundance of P. anaerobius did not decrease after administration PanLys.1 under in vitro rumen conditions. Conclusion: The application of PanLys.1 to modulate P. anaerobius in the rumen might not be feasible because its lytic activity was not observed in in vitro rumen system.

• Safety and Health at Work
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• 제13권4호
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• pp.493-499
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• 2022

Background: The purpose of this study is to construct a job-exposure matrix for lead that accounts for industry and work processes within industries using a nationwide exposure database. Methods: We used the work environment measurement data (WEMD) of lead monitored nationwide from 2015 to 2016. Industrial hygienists standardized the work process codes in the database to 37 standard process and extracted key index words for each process. A total of 37 standardized process codes were allocated to each measurement based on an automated key word search based on the degree of agreement between the measurement information and the standard process index. Summary statistics, including the arithmetic mean, geometric mean, and 95th percentile level (X95), was calculated according to industry, process, and industry process. Using statistical parameters of contrast and precision, we compared the similarity of exposure groups by industry, process, and industry process. Results: The exposure intensity of lead was estimated for 583 exposure groups combined with 128 industry and 35 process. The X95 value of the "casting" process of the "manufacture of basic precious and non-ferrous metals" industry was 53.29 ㎍/m³, exceeding the occupational exposure limit of 50 ㎍/m³. Regardless of the limitation of the minimum number of samples in the exposure group, higher contrast was observed when the exposure groups were by industry process than by industry or process. Conclusion: We evaluated the exposure intensities of lead by combination of industry and process. The results will be helpful in determining more accurate information regarding exposure in lead-related epidemiological studies.

• 산경연구논집
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• 제14권7호
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• pp.27-38
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• 2023

Purpose: The new technological innovation caused by the Fourth Industrial Revolution will bring about a major change in the scalp healthcare market and the wig industry. This review paper is an empirical analysis focusing on the development potential of the Korean beauty tech market and the wig industry. Research design, data and methodology: This review of the wig industry and consumer experience is an important literature review. The PRISMA flow chart was used. Beauty Tech; Beauty Industry; Wig Industry; Wig; Scalp Healthcare; was used as Keywords as records verified through database screening. A total of 513 references were finally selected through major journal search sites such as PubMed, Google Scholar, RISS, Scopus, and Research Gate. Among the selected references, a total of 52 papers were selected in the final stage from 2001 to 2022. Results: For the sustainable development of wig industry management, consumers' desire for new and convenient products should be secured through technologies related to the 4th industrial revolution, and creative thinking was presented throughout manufacturing, distribution, and customer service. Conclusions: Hair loss reduces the quality of life due to mental stress and affects social life. The continuous development of wig companies, such as information on wigs and quality improvement, should be supported.

• 한국의류산업학회지
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• 제12권6호
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• pp.736-744
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• 2010

Alliances, collaborations and partnerships are essential practices in today's business. The purpose of this study was to understand the trends in retail alliances by analyzing the patterns of alliances in the Korean retail market. Retail alliance cases were collected from the published news article database in a major internet portal. A total of 1,061 retail alliance cases for the first decade of the 2000s were categorized into the alliances: 1) within the same retail format and 2) across different formats within the retail industry; and 3) with service industries and 4) with manufacturing industries outside the retail industry. The study described the patterns on the characteristics of participating retailers and partners, industries involved, and alliance types for each of the four categories.

• 한국데이타베이스학회:학술대회논문집
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• 한국데이타베이스학회 2008년도 연합학회학술대회
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• pp.487-491
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• 2008

After 1990, Korean information technology industry was developed enormously. To estimate these situation, there were many studies such as based on resource based view, transaction cost theory, and so on. These studies were focused on the efforts of company itself and the main body of development were the company not environmental factors. But in developing countries such as Korea, environment which is government policies, other companies, etc. is important factor. So present study estimate the environmental factors for evolution of Korean IT industry with population ecology concept.