• 한국문헌정보학회지
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• 제51권4호
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• pp.99-120
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• 2017

본 논문에서는 지속적으로 커져가는 산업 시장에 대해 관련 연구자들이 이를 효율적으로 분석할 수 있는 반자동 지원 체제개발을 위한 기술 용어와 기술 개념에 대한 정의문 및 설명문을 자동으로 생성하는 한국어 문장 생성 모델을 제시한다. 한국어 정의 문장 생성을 위하여 딥러닝 기술 중 데이터의 전/후 관계를 포함한 시퀀스 레이블링이 가능한 LSTM을 활용한다. LSTM을 근간으로 한 두 가지 모델은 기술명을 입력할 시 그에 대한 정의문 및 설명문을 생성한다. 다양하게 수집된 대규모 학습 말뭉치를 이용해 실험한 결과, 본 논문에서 구현한 2가지 모델 중 CNN 음절 임베딩을 활용한 어절 단위 LSTM 모델이 용어에 대한 정의문 및 설명문을 생성하는데 더 나은 결과를 도출시킨다는 사실을 확인하였다. 본 논문의 연구 결과를 바탕으로 동일한 주제를 다루는 문장 집합을 생성할 수 있는 확장 모델을 개발할 수 있으며 더 나아가서는 기술에 대한 문헌을 자동으로 작성하는 인공지능 모델을 구현할 수 있으리라 사료된다.

• BMB Reports
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• 제40권4호
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• pp.588-594
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• 2007

A novel hot spring thermophile, Anoxybacillus gonensis A4 (A. gonensis A4) was investigated in terms of capability of tributyrin degradation and characterization of its thermostable esterase activity by the hydrolysis of p-nitrophenyl butyrate (PNPB). It was observed that A. gonensis A4 has an esterase with a molecular weight of 62 kDa. The extracellular crude preparation was characterized in terms of substrate specificity, pH and temperature optima and stability, kinetic parameters and inhibition/activation behaviour towards some chemicals and metal ions. Tributyrin agar assay showed that A. gonensis A4 secreted an esterase and $V_{max}$ and $K_m$ values of its activity were found to be 800 U/L and 176.5 ${\mu}M$, respectively in the presence of PNPB substrate. The optimum temperature and pH, for A. gonensis A4 esterase was $60-80^{\circ}C$ and 5.5, respectively. Although the enzyme activity was not significantly changed by incubating crude extract solution at $30-70^{\circ}C$ for 1 h, the enzyme activity was fully lost at $80^{\circ}C$ for same incubation period. The pH-stability profile showed that original crude esterase activity increased nearly 2-fold at pH 6.0. The effect of some chemicals on crude esterase activity indicated that A. gonensis A4 produce an esterase having serine residue in active site and -SH groups were essential for its activity.

• 한국물환경학회지
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• 제37권6호
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• pp.493-500
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• 2021

Floating solar photovoltaic (hereinafter PV) power generation is emerging as a proper alternative to overcome various environmental limitations of existing offshore PV generation. However, more government-led policy design and technical and institutional development are still required. Based on the policy agenda setting theory and technological innovation theory, this study contains the research questions concerning the co-evolution of technology and the floating solar PV policy. This study primarily evaluates the technological and institutional development level of floating solar PV policy through a survey of domestic floating solar PV experts. Secondly, we also analyze the kind of policy agenda that should be set a priori. Analyzing the priorities to be considered, the first environmental enhancement needs to be considered from both the technical and institutional aspects. The second candidate task for the policy agenda is residents' conflict and improvement of regulations. Both candidate tasks need to be actively considered in the policy agenda from the institutional point of view. The third is publicity, profit sharing, follow-up monitoring, and cost. Among them, public relations and profit sharing are tasks that need to be considered in the policy agenda from the institutional point of view. On the other hand, the cost of follow-up monitoring should be considered as a policy agenda in terms of technology, system, and common aspects. Finally, there are technical standards. Likewise, technical standards need to be considered in the policy agenda in terms of both technical and institutional commonality.

• 대한예방한의학회지
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• 제13권2호
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• pp.115-128
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• 2009

Background : Currently, ontology research has led the trend of technical development in medical informatics area. For Korean medicine, the reference terminology should be developed to facilitate the ontology research. Objective : This research aimed to design the management system for traditional Korean medical terms. Method :We built the internet-based system in which multi-users work simultaneously by using the relational database system(SQL Server2005) and visual studio 2005. Result : By this system, researchers can collect, refine, and inspect Korean medicine terms efficiently, and the terms can be transcribed into synonym, Korean, Chinese, and simplified Chinese. It enables the terms be input into the system accurately and managed by its classification. Conclusion : We developed the concept groups and its hierarchy system for Korean medicine terms which provides the basis for ontology system.

• 대한수학교육학회지:수학교육학연구
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• 제12권4호
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• pp.493-508
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• 2002

The purpose of this study is to compare the preferences of the school mathematical terms of South Korea and those of North Korea by administering a survey for learners, inservice teachers, and pre-service teachers, to establish the criteria of desirable school mathematical terms, and to evaluate the school mathematical terms of South Korea and those of North Korea based on the criteria. According to the result of the survey, the preferred mathematical terms are different from one group to the other, yet the mathematical terms of South Korea are more preferred. In general, terms written in pure Korean and concise terms which are easily understandable are favored. To discuss about the criteria of desirable school mathematical terms, four perspectives were set up, 1) the semantic perspective and the regulatory perspective, 2) terms written in pure Korean and Chinese letters, 3) terms from everyday language and technical terms, and 4) the consistency. Six criteria were followed from the aforementioned four perspectives. Finally, various school mathematical terms of South and North Korea were reviewed in the angles of the four perspectives and the six criteria.

• Journal of Power Electronics
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• 제18권5호
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• pp.1293-1302
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• 2018

Multiport power converters have recently become popular to researchers and engineers. However, more improvements are required in terms of their soft-switching operation, bidirectional operation, and integration. In this study, a bidirectional three-port three-switch DC-DC converter is proposed. The converter contains a low-current ripple port and ripple-free current port. Through the integrated structure, utilization of a coupled inductor, and a new switching strategy, the aforementioned specifications are achieved. A modified switching strategy is also utilized in the converter, which has resulted in the bidirectional operation of the converter between ports. Finally, a comprehensive analysis is presented, and the converter characteristics are validated by experimental results.

• 전력전자학회:학술대회논문집
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• 전력전자학회 2001년도 추계학술대회 논문집
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• pp.166-170
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• 2001

This paper deals with the translation and terminology adjustment of international electrotechnical vocabulary(IEV) for operations within power electronic equipment. The IEVs are found in the section 551-16 of IEC 60050-551. The standard has been prepared by TEC Technical Committee 22 : Power Electroncis, under the responsibility of IEC Technical Committee 1 : Terminology and is consists of 9 sections with 221 terms. This paper contains the results for 71 terms among them.

• 한국정밀공학회지
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• 제25권12호
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• pp.100-106
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• 2008

In this paper, the injection molding process of automotive seat-back cover is analyzed in terms of simulation and of experiment. FE analysis was used to obtain molding conditions such as injection pressure, filling pattern, packing, shrinkage. Vacuum system for low pressure injection molding is developed in the experiment. Low pressure injection molded parts have been compared with conventional molded parts in terms of molding quality and mechanical properties. Based on the results, good product and the productivity improvement can be obtained in low pressure injection molding for automotive seat-back cover.

• 전력전자학회:학술대회논문집
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• 전력전자학회 2001년도 전력전자학술대회 논문집
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• pp.450-458
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• 2001

This paper deals with the translation and terminology adjustment of international standard IEC 60050-551 for international electrotechnical vocabulary in the field of power electronics. The standard has been prepared by IEC Technical Committee 22 : Power Electroncis, under the responsibility of IEC Technical Committee 1 : Terminology and is consists of 9 sections with 221 terms. This paper contains the results for 150 terms among them.

• 펄프종이기술
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• 제30권3호
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• pp.57-62
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• 1998

This study is intended to analyze how formations affect the tensile and tear strengths of paper at the same basis weight. Light transmitance method using a scanner was employed to measure the degree of formation in terms of gray scale. Scanning method showed close relationship between gray scale value and basis weight. At the same basis weight a sheet of paper with good formation had higher tensile strength in terms of breaking length than that of a paper with poor formation. There was little difference in tear strength depending on formations.