• Proceedings of the Korean Society for Technology of Plasticity Conference
• /
• 2008.10a
• /
• pp.321-324
• /
• 2008

The increasing interest in the surface modification by the laser cladding technology in the material processing is placing stringent demands on the manufacturing techniques and performance requirements, and the manufacture employs the high quality and efficiency laser cladding technology. This paper covers recent technical trends of laser cladding technology including the COMPENDEX DB analysis.

• Proceedings of the Korean Society for Technology of Plasticity Conference
• /
• 2009.10a
• /
• pp.358-361
• /
• 2009

The increasing interest in the surface modification technology by the plasma transferred arc overlaying process in the material processing is placing stringent demands on the manufacturing techniques and performance requirements, and the manufacture employs the high quality and efficiency plasma transferred arc overlaying technology. This paper covers recent technical trends of plasma transferred arc overlaying technology including the COMPENDEX DB analysis.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2015.10a
• /
• pp.1292-1294
• /
• 2015

4족 보행 로봇이 환경에 동적으로 적응하여 자신에게 최적의 운동을 만들어 내는 연구는 중요하다. 우리는 유전알고리즘을 이용하여 전진 걸음새 동적 학습 시스템을 제안하였다. 이 시스템의 핵심은 로봇의 운동과 이 운동의 결과를 피드백해주는 센서들이다.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2021.11a
• /
• pp.733-735
• /
• 2021

유전 프로그래밍 기법을 이용하여 완성된 프로그램 코드를 생성하는 연구는 최근까지 실용적으로 사용할 만한 결과를 만들지 못하고 있다. 우리는 완성된 프로그램 코드를 만들지 않고, 특정 기능을 갖는 함수 코드를 자동 생성하는 연구에 중점을 두었다. 실제 구현을 위한 시스템을 설계하고 타당성을 검토 하였다.

• Journal of Radiation Protection and Research
• /
• v.26 no.3
• /
• pp.203-206
• /
• 2001

The mathematical processing (unfolding) of pulse height spectra from a scintillation detector helps to calculate the photon fluence rate energy distribution in a measured photon field. The data processing is based on the knowledge of detection system response function and directional dependence respectively. The experimental results of the photon fields measurements in the vicinity of the spent fuel temporary storage and inside the storage hall are presented. The containers Castor 440 are used for temporary storing of the burnt up fuel assemblies in the Czech nuclear power plant Dukovany. A set of periodical measurements was performed in order to get basic information on the time dependence of the photon fields spatial distributions and spectral characteristics in the temporary storage hall and its vicinity. The photon fields were measured by the scintillation system. The obtained photon fields spatial distributions and spectral characteristics present the information on the radiation hazard in the storage.

• Journal of Korea Technical Association of The Pulp and Paper Industry
• /
• v.43 no.5
• /
• pp.34-42
• /
• 2011

A fiber processing method, which might be an alternative for conventional refining process, was introduced. The method consists of repetitive, gentle, mechanical impacts on fibers, followed by fiber uncurling process. This method was very effective for OCC and BCTMP for increasing WRVs (water retention value) while keeping fiber lengths from shortening. For OCC and BCTMP, gentle mechanical impacts on fibers using Hobart mixer increased breaking lengths and tear strengths simultaneously at fast drainage level, and straightening fibers using kady mill increased those strength properties further. For SwBKP and HwBKP, only mechanical impacts using the Hobart mixer were effective on increasing tensile and tear strength at fast drainage, but there were no further increase by kady mill treatment. The strength increases of BCTMP by this alternative fiber processing method were exceptionally high. An extensive engineering development should be followed to actualize this fiber processing mechanism in an energy-effect way.

• Proceedings of the Korea Technical Association of the Pulp and Paper Industry Conference
• /
• 2006.06b
• /
• pp.433-440
• /
• 2006

A fiber processing method, which might be an alternative for conventional refining process, was introduced. The method consists of repetitive, gentle, mechanical impacts on fiber, and ensued fiber uncurling process. This method was very effective for OCC and BCTMP for increasing WRVs (water retention value) while keeping fiber lengths from shortening. For OCC and BCTMP, gentle mechanical impacts on fibers using Hobart mixer increased breaking lengths and tear strengths simultaneously at fast drainage level, and straightening fibers using kady mill increased those strength properties further. For SwBKP and HwBKP, only mechanical impacts using the mixer were effective on increasing tensile and tear strength at fast drainage, but not kady mill treatment. The strength increases of BCTMP by this alternative fiber processing method were exceptionally high. An extensive engineering development should be followed to actualize this fiber processing mechanism in an energy-effect way.

• Journal of the Korean Magnetic Resonance Society
• /
• v.22 no.3
• /
• pp.46-53
• /
• 2018

NMR-based metabolomics needs various knowledge to elucidate metabolic perturbation such as NMR experiments, NMR spectrum processing, raw data processing, metabolite identification, statistical analysis, and metabolic pathway analysis regarding technical aspects. Among them, some concepts of raw data processing and multivariate analysis are not easy to understand but are important to correctly interpret metabolic profile. This article introduces NMR spectrum processing, raw data processing, and multivariate analysis.

• Journal of the Korean Society of Systems Engineering
• /
• v.14 no.1
• /
• pp.19-27
• /
• 2018

For the purpose of technology planning and R&D strategy, this research developed a methodology for deriving technical information based on stakeholder requirements using natural language processing technology. The requirements are decomposed into semantic information based on grammar rules, and then the requirement information based technology information can be derived by linking with the three technical information extracted from the patent.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2017.11a
• /
• pp.345-348
• /
• 2017

버퍼 오버플로우(Buffer Overflow) 취약점은 시스템 보안에서 아주 중요하다. 본 논문은 바이너리 파일에서 버퍼 오버플로우 취약점을 자동 감지하는 시스템을 제안하였다. 다양한 버퍼 오버플로우 샘플소스를 이용하여 패턴을 만들고, 이렇게 만들어진 패턴을 이용하여 바이너리 파일에서 버퍼 오버플로우 취약점이 포함되어 있는지를 판단한다. 제안한 시스템의 유용성을 위해 실험을 하였고, 어느 정도 의미 있는 결과를 얻을 수 있었다.