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자동 초음파 검사를 위한 결함 영상 처리 시스템의 설계 및 구현
김한종,박종훈,김철원,Kim, Han-Jong,Park, Jong-Hoon,Kim, Chul-Won 한국정보통신학회 2010 한국정보통신학회논문지 Vol.14 No.1
용접부 내에 존재하는 결함의 형태, 위치, 크기 등의 정보를 정량적으로 파악하기 위하여 초음파 탐상 검사가 많이 활용되는데, 최근 들어 용접부의 결함 탐상을 위해, 검사과정을 기계적 스캐너로 자동화한 자동 초음파 탐상 시스템이 많은 산업 분야에서 활용되고 있고, 특히 배관 용접부의 건전성 평가를 위한 비파괴안전진단에서 그 활용 폭이 커지고 있다. 본 논문에서는 배관 용접부의 자동 초음파 검사를 위한 알고리즘 구현과 결함 영상을 보정하여 주는 결함영상 처리 시스템을 설계 및 구현하였다. 적용된 기법으로는 초음파 A-Scan 압축 알고리즘, Synthetic Aperture Focusing 알고리즘, 결함영상증폭 알고리즘과 이와 관련된 소프트웨어 설계 및 구현에 대하여 논한다. In this study, an automated ultrasonic testing system and post signal and image processing techniques are developed in order to construct ultrasonic flaw images in weldments. Image processing algorithms are built into the flaw image processing system for the automated ultrasonic testing system. The developed signal and image analysis algorithms addressed in this study include an A-Scan data compression algorithm, ultrasonic image amplification algorithm and B-scan flaw image correction algorithm(SAFT). This flaw image processing system for the automated ultrasonic testing system can be applied to various inspection fields.
김한종,Kim, Han-Jong 대한전자공학회 2001 전자공학회논문지TC (Telecommunications) Vol.38 No.11
The Pan-European Digital Audio Broadcasting(DAH) system's performance is characterized and improved with the aid of turbo codec. From the fact that the first bit among the four coded bits at the RCPC coding defined in the Eureka 147 DAD system is not. punctured and always transmitted, this paper proposes a new turbo coded DAB system model that replaces the existing RCPC codec by a turbo codec without modifying the puncturing procedure and puncturing vectors defined in the standard DAB system for compatibility. The performance of a new system is compared to that of the conventional system under the Rician fading channel and the Rayleigh fading channel in conjunction with DAD transmission mode I and III suitable for the terrestrial single frequency network and satellite broadcasting.
협동조합 실태조사 결과와 시사점 - 협동조합 설립동향 및 제2차 실태조사 자료를 중심으로 -
김한종 ( Han Jong Kim ),최희원 ( Hee Won Choi ) 농협대학교 협동조합경영연구소 2016 협동조합경영연구 Vol.44 No.-
This paper is a study on the analysis of the cooperative survey report. We analyzed the cooperative survey report conducted by the Ministry of Strategy and Finance in 2015. Most of the cooperatives were found to be small size. While the number of cooperatives increased rapidly, it showed a low rate of business operations. And among cooperatives it showed a big difference in business volume and revenue size. We suggest that for the sustainable development of cooperatives, it is necessary seek to qualitative growth rather than quantitative growth.
김한종(Kim, Han-jong) 호서사학회 2021 역사와 담론 Vol.- No.97
본 논문에서는 역사 쟁점의 성격과 유형을 바탕으로 해방 3년사 인식의 쟁점을 정리하고, 이를 기반으로 하는 역사 수업의 방안을 제시하였다. 역사 쟁점은 행위자의 서로 다른 의사결정, 역사 해석의 차이, 역사적 평가이다. 해방 3년사 인식을 둘러싼 갈등은 사회의 역사적 평가가 역사 해석으로 환원된 결과이다. 쟁점 기반 역사 학습은 역사 인식을 둘러싼 논란을 사회에서 학교로, 학습의 주체인 학생에게 넘기는 것이다. 학생이 역사적 사실의 성격과 논쟁성을 깨닫고 자신의 관점에서 역사 인식을 함으로써 역사 갈등을 해결할 수 있다. 이런 관점에서 본 논문은 쟁점 기반 해방 3년사 학습 방안을 제안하였다. 해방 3년사의 쟁점으로는 광복 당시의 사회 상황, 38도선분할의 평가, 좌우합작의 가능성, 통일정부와 단독정부 수립 주장을 선정하였다. 학습의 절차는 문제 인식, 쟁점 파악, 쟁점 검토, 역사적 사실의 재해석 단계이다. 각 단계별로 활용할 수 있는 자료와, 자료를 통해 쟁점의 이해와 검토, 역사 인식을 하는 데 필요한 질문의 예시를 제시하였다. 본 논문의 제안은 교사들이 해방 3년사 수업을 하는데 시사점을 제시하고, 구체적 수업 설계의 자료로 활용할 수 있을 것이다. This study explored controversial issues of recognition of the 3-year history since 8‧15 Liberation based on the characteristics and types of historical issues, and suggested the strategy for teaching history. The historical issues are divided into the actors’ different decisions, the differences in historical interpretation, and the historical evaluation. The conflict over the perception of the 3-year history since 8‧15 Liberation is the result of the historical evaluation of society being reduced to historical interpretation. The controversial issue-based history learning is to pass the discussion over the recognition of history from society to the school and to the student who is the subject of learning. Students can resolve historical conflicts by realizing the nature and controversy of historical facts and recognizing history on their own through such lesson. From this point of view, this study proposed the learning strategy on an controversial issue-based 3-year history since 8‧15 Liberation. The selected controversial issues during the 3-year history since 8‧15 liberation are the recognition of the social situation at 8‧15 Liberation times, the resulting evaluation of the division of the 38th parallel, the judgement of possibility of a right-and-left cooperation, and the assertion of establishing a divided government or a unified government. The stages of problem recognition, the identification of controversial issues, analysis and interpretation of controversial issues, and reinterpretation of historical facts were set as the learning process. And then, this study suggested sources can be used in each stage and examples of questions necessary for understanding and reviewing controversial issues and historical cognition. The strategy of this study suggests implications for teachers to teach 3-year history since 8‧15 Liberation and can be used as data for specific history lesson plans.
김한종(Kim Han-Jong) 강원대학교 비교법학연구소 2006 江原法學 Vol.22 No.-
It has been passed 10years that Kosdaq market was founded in 1996 and 『the special Law for Upbringing the Venture business』was made and effected in 1997. Venture industry made a significant contribution to constitutional improvement and modernization of industrial structure. And there is no doubt that it plays the role of positive parts which constructs a new economical paradigm of our society. On the other hand there are apprehensions about Venture business. Under the circumstance in these days of making conversion of paradigm, it is important of promotion necessity of Small-middle business and Venture business and change of industrial conditions to enhance business competition and industry activity. A point of view of Small-middle businessman to start an enterprise, especially starting an enterprise of Small-middle business or Venture business is fascinated with us. And for it, enough investigation and advanced knowledgement are required about matters to considerate or procedure to follow the establishment as business and substance of Venture business. Our venture industry begins a generation of new challenge, and to make a new generation growth power of our economy, venture boom was enough cognizant of having an great deal of assignment. Therefore the government should re-examine synthetically a plan to bring up Venture industry and consider multilaterally a related counterplan. Moreover, Venture business must do one's endeavors to improve constitution. An important thing for development of Venture industry isn't cordial industry environment or supporting of government but emergence of a world-wide Venture business acknowledged authority and technical power. These states play an important role in to inspiring challenge mind and giving dreams to pre-inaugurator.
김한종(Kim Han-Jong) 강원대학교 비교법학연구소 2007 江原法學 Vol.24 No.-
The U.S. Antitrust Laws boast more than 100 years of history and have been recognized as the laws of leading prototype that have significantly influenced the establishment of the transnational competition law systems. The Sherman Act was the first Federal government initiated Anti-Trust Law founded in 1890 which was later complemented by the enactment of the Clayton Act and Federal Trade Commission Act of 1914, laying a concrete foundation of American Anti-trust Laws. The complementation of the three main Anti-trust Laws continued by the enactment of such ex post facto laws as the Robinson-Patman Act of 1936, the Wheeler-Lea Act of 1938, the Celller-Kefauver Act of 1950 and finally, the Hart-Scott-Rodino Antitrust Improvement Act of 1976. It is not too much to say that the enactment of laws regulating the anti-trust laws and fair trade in 1980 and the follow-up anti-trust laws in Korea were all established on the basis of the American Competition Laws in its trend and nature. Thus, the degree of influence the American Competition Laws has on our legislative policy-making is nonetheless substantial and requires a great deal of research. This paper, especially, purports to inquire about the U.S. Antitrust Law centering on the three main Anti-trust laws namely, the Sherman Act, the Clayton Act and the Federal Trade Commission Act through the review of the recent publications detailing actual legal matters and procedures.