한국의 인공태양(KSTAR) 운영 현황

김광표,김현석 한국초전도저온학회 (구 한국초전도저온공학회) 2020 초전도와 저온공학 Vol.22 No.2

Recent research news : Transdermal protein delivery by a coadministered peptide identified via phage display

김광표 한국생화학분자생물학회 (구 한국생화학회) 2006 생화학분자생물학회 소식 Vol.26 No.2

압력에 따른 지르칼로이의 수증기내 고온산화

김광표,박광헌 慶熙大學校 材料科學技術硏究所 1998 材料科學技術硏究論集 Vol.11 No.-

To find the effect of pressure on the high temperature oxidation of zircaloy-4, an autoclave capable of measuring the degree of oxidation at high temperatures and high pressure was manufactured. The degree of high temperature oxidation of zircaloy-4 was measured at three different conditions, high pressure steam, high pressure Ar gas with small amount of steam, and 1 atm steam. All the measurements were done at 750℃. The oxide thickness is much thicker in high pressure steam, comparing to that in the 1 atm steam. And, the higher is the steam pressure, the thicker becomes the oxide. No effect was observed in the case of high pressure Ar containing small amount of steam. Many cracks exist on the surface of specimens oxidized at high pressure steam, which come from the enhanced tetragonal to monoclinic phase transformation due to high pressure steam. The enhanced oxidation seems due to oxide cracking.

산학연 논단 : 전통장류에서 박테리오파지를 이용한 Bacillus cereus 의 제어

김광표 한국식품저장유통학회(구 한국농산물저장유통학회) 2011 식품저장과 가공산업 Vol.10 No.2

중소기업 CoP특성과 조직시민행동간 관계 실증연구

김광표,채명신,염대성 한국인적자원관리학회 2009 인적자원관리연구 Vol.16 No.3

본 연구는 한국 중소기업의 CoP 특성이 CoP 성과에 미치는 영향에 이어 CoP 성과가 조직유효성에 미치는 영향에 대하여 알아보고자 하였다. 이에 따라 CoP특성(CoP에 영향을 미치는 요인)을 독립변수로 설정하고 CoP로 인한 개인적, 조직적 성과에 미치는 영향과 더불어 조직시민행동에 미치는 영향을 알아보기 위하여 실증분석을 진행하였다. 선행연구의 대부분이 대기업 CoP를 대상으로 하거나 CoP 자체적 구성과 성과에 관련된 연구들로 이루어져 있으며 중소기업 CoP와 조직시민행동에 관련된 연구는 미비하였다. 본 연구에서 사용된 표본은 2007년 노동부 산업인력공단 중소기업 학습조직화 지원사업 대상기업(108곳)내 CoP 참여직원이다. 연구결과 CoP특성 중 조직요인과 CoP요인이 CoP성과에 영향을 미치는 것으로 나타났으며 환경요인(정부지원)과 개인요인은 영향을 미치지 않은 것으로 나타났다. 또한 CoP성과도 조직시민행동에 영향을 미치는 것으로 나타났다. 이러한 결과는 먼저 CoP활동에 대한 중소기업내 임원의 관심과 공식적 지원 및 공정한 평가와 적절한 보상이 중요함을 시사한다. 두 번째로 CoP 성과향상을 위해 조직차원의 지원과 함께 CoP리더의 리더십이 중요하며 체계적인 운영시스템과 온,오프라인을 포함한 자체 활동이 중요함을 알 수 있다. 또한 중소기업내 CoP활동이 열린 조직문화 형성 및 기업가치 향상에 영향력이 있음을 확인하였다. 본 연구를 통하여 중소기업 CoP연구의 틀과 실천적 방향을 마련하였고 CoP가 중소기업 경쟁력 강화와 인적자원 개발에 중요한 요소임을 확인하는데 그 의의가 있다. This study is aimed to examine the effects of CoP properties of Korean SMEs (small and medium enterprises) on CoP performance, and the effects of CoP performances on organizational effectiveness. Thus, CoP properties (factors affecting CoP) was set as an independent variable. An empirical analysis was conducted to understand the effects of CoP on organizational citizenship behavior, in addition to its effects on personal and organizational performances. Most of the prior studies targeted CoP of large enterprises or associated with the composition of CoP itself and performance. However, there has not been sufficient investigation on CoP of SMEs and organization citizenship behavior. Examples of this study were taken from the staffs participating in CoP from 108 companies selected for the support of ‘Establishment of learning organization for SMEs, 2009’, which was given by the Ministry of Labor. it was discovered that organizational factors and CoP factors affected CoP performance, but that environmental factor (the support given by the government) and personal factors did not exert any effect. It was also found that CoP performance affected organizational citizenship behavior. The result of the study suggests that the interest and official support of SME executives for a fair evaluation and adequate compensation toward CoP activities are important. Secondly, in addition to the support from the organizations, the leadership of CoP leaders, systematic operating system, and internal on-line/off-line activities are important for improving CoP performance. Furthermore, CoP activities in SMEs influenced the formation of open organizational culture and improved company value. This study has sat a foundation for investigating CoP of SMEs, and has shown a direction for practice. The significance of this study confirms that CoP is an important element for strengthening competitiveness of SMEs and in the development of human resources.

BMB Reports Review : Nitrosative protein tyrosine modifications: Biochemistry and Functional Significance

김광표 한국생화학분자생물학회 (구 한국생화학회) 2008 생화학분자생물학회 소식 Vol.28 No.1

KSTAR 토카막 장치 진공 기술 현황

김광표,김현석,Kim, Kwang-Pyo,Kim, Hyun-Seok 한국진공학회 2017 진공 이야기 Vol.4 No.1

Recently, KSTAR, Korea's superconducting fusion energy research and development device, has succeeded in driving the high performance plasma for 70 seconds for the first time in the world. Continuous plasma operation technology is an essential factor for commercialization of fusion energy power generation. Therefore, this achievement is expected to play a major role in the research of fusion technology required for future fusion power plants. In order to operate the KSTAR, the discharge process in which the neutral gas is turned into the plasma should be preceded in the start-up (breakdown) phase of tokamak operation. This process essentially involves the vacuum environment in the tokamak device. KSTAR has successfully operated a vacuum pumping system to achieve the target level of the vacuum environment through a high temperature baking operation, a discharge cleaning process and boronization.

Vacuum exhaustion test of KSTAR

김광표,김학근,이근수,양형렬,박주식 한국진공학회 2007 한국진공학회 학술발표회초록집 Vol.16 No.2

말단선량계의 광자선량당량환산인자에 대한 이론적 계산

김광표,이원근,김종수,윤여창,윤석철,Kim, Kwang-Pyo,Lee, Won-Keun,Kim, Jong-Su,Yoon, Yeo-Chang,Yoon, Suk-Chul 대한방사선방어학회 1996 방사선방어학회지 Vol.21 No.1

중성자 및 전자 그리고 광자 수송코드인 MCNP 4A코드를 이 용하여 ANSI N13.32에 제안된 말단팬텀과 한국원자력연구소 제작한 말단팬텀 각각에 대하여 감마선량당량환산인자를 커마근사법에 근거하여 계산하였다. 본 계산은 $15keV{\sim}1.5MeV$ 에너지영역에 대해 단일광자에너지 선원을 고려하였으며 이러한 단일광자에너지함수로서 계산한 공기커마에 대한 선량당량의 비로서 선량당량환산인자를 이론적으로 도출하였다. 본 연구에서 이론적 방법으로 도출한 ANSI와 KAERI의 말단팬텀 각각에 대한 광자선량당량환산인자를 ANSI N13.32의 실험적 방법에 의해 제시된 값들과 비교한 결과 50keV 이상의 단일 광자에너지영역에서는 실험적 방법에 의한 값들과 최대차이 5.7% 내에서 잘 일치함을 보였다. 그러나 40 keV 이하의 에너지영역에서는 본 연구의 계산 결과가 최대 13.6%까지 낮게 평가됨을 알 수 있었으며, 이러한 차이는 낮은 에너지영역에서 두드러지는 단일에너지의 생성과 관련된 실험의 불확실성과 MCNP코드에서 모사한 Geometry의 영향에 기인하는 것으로 사료된다. In this study, the theoretical calculation of the air kerma-to-dose equivalent conversion factors was performed with a Monte Carlo N-Particle transport code for the two types of extremity phantom of the ANSI and the KAERI, respectively. Considering the distribution of absorbed dose due to the interaction of homogeneous Parallel broad beam of monoenergetic primary photons in the range between 15keV and 1.5MeV, the air kerma-to-dose equivalent conversion factors based on the kerma approximation were calculated. It is showed that all the theoretical conversion factors of the two types of the extremity phantom for the ANSI and the KAERI agree well with the experimental values of the ANSI N13.32 draft(1995) for each energy within 5.7%, maximum difference ratio, except for 13.6%, difference ratio in the case for the energy of less than 40keV. It is due to uncertainties of experiment occurred in the low X-ray energy range and geometry considered in the MCNP code.

공정 조건에 따른 비정질 탄소막 표면 물성분석

김광표,최정은,홍상진 한국반도체디스플레이기술학회 2019 반도체디스플레이기술학회지 Vol.18 No.2

Amorphous carbon layer (ACL) is actively used as an etch mask. Recent advances in patterning ACL requires the next level of durability of hard mask in high aspect ratio etch in near future semiconductor manufacturing, and it is worthwhile to know the surface property of ACL thin film to enhance the property of etch hard mask. In this research, ACL are deposited by 6 inch plasma enhanced chemical vapor deposition system with C3H6 and N2 gas mixture. Surface properties of deposited ACL are investigated depending on gas flow, pressure, RF power. Fourier transform infrared is used for the analysis of surface chemistry, and X-ray photoemission spectra is used for the structural analysis with the consideration of the contents of sp2 and sp3 through fitting of C1s. Also mechanical properties of deposited ACL are measured in order to evaluate hardness.