• Proceedings of the Korean Vacuum Society Conference
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• 2003.02a
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• pp.68-68
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• 2003

• 한국가스학회:학술대회논문집
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• 2003.05a
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• pp.111-116
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• 2003

• Proceedings of the Korean Nuclear Society Conference
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• 1998.05b
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• pp.336-343
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• 1998

An iteration method has been developed for determining crack growth and fracture resistance cure (J-R curve) from the load versus load-line displacement record only. In this method, the hardening curve, the load versus displacement curve at a given crack length, is assumed to be a power-law function, where the exponent varies with the crack length. The exponent is determined by an iterative calculation method with the assumption that the exponent varies linearly with the load-line displacement. The proposed method was applied to the static J-R tests using compact tension(CT) specimens, a three-point bend (TPB) specimen, and a cracked round bar (CRB) specimen as well as it was applied to the quasi-dynamic J-R tests using CT specimens. The J-R curves determined by the proposed method were compared with those obtained by the conventional testing methodologies. The results showed that the J-R curves could be determined directly by the proposed iteration method with sufficient accuracy in the specimens from SA508, SA533, and SA516 pressure vessel steels and SA312 Type 347 stainless steel.

• 한국정보통신설비학회:학술대회논문집
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• 2003.08a
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• pp.215-217
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• 2003

본 논문에서는 음악이나 동영상과 같은 디지털 미디어 컨텐츠의 유통과 보안을 위하여 개인 사용자의 접속 권한을 부여하고 제한을 가할 수 있는 OpenIPMP에 대하여 살펴본다. 그리고 본 논문은 디지털 미디어 컨텐츠의 저작권보호와 복제 방제를 위해 워터마킹 기술을 OpenIPMP에 연동시켰다. 아울러 디지털 미디어 권한에 대하여 표현하고 처리하고자 하는 목적으로 MPEG-21 REL을 역시 OpenIPMP에 연동시켰다.

• Archives of Pharmacal Research
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• v.17 no.3
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• pp.194-198
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• 1994

The antitumor effects of the 2E4 and anti--Tac, monoclonal antibodies directed to Il-2 receptor (IL-2R) conjugated with .alpha.-particle emitting radionuclide bismuth-212., were compared. The $^{212}Bi-2E4$ demonstratedspecific cytotocicity to EL4J3, 4, a I$L-2R^+$ cell line, than to EL4J, a $IL-2R^-$ cell line in thymidine incorporation assy. TEX>$^{212}Bi-2E4$ exerted the maximal antitumor effect in that % T/C in C57BL/6 mice implanted with EL4J3.4 ascitic tumor was 331% at the concentration of $50{\;}{\mu}Ci$, while that of $^{212}Bi-anti-Tac$ was 258% at $100{\;}{\mu}Ci$.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.15 no.3
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• pp.149-154
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• 2015

In this paper proposes a stable marriage algorithm. The proposed algorithm firstly constructs an $n{\times}n$ matrix of men's and women's sum preference over opposite sex $p_{ij}$. It then repeatedly deletes row or column corresponding to the then maximum dispreference sum $_{max}p_{ij}$ until ${\forall}(|r_i|=1{\cap}|c_j|=1)$. If $|r_i|=1$ or $|c_j|=1$ then we select the $p_{ij}$ of $|r_i|=1$ or $|c_j|=1$ then the row or column values are deleted repeatedly until ${\forall}(|r_i|=1{\cap}|c_j|=1)$. When tested on 7 stable marriage problems, the proposed algorithm has proved to improve on the existing solutions.

• Electronics and Telecommunications Trends
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• v.28 no.5
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• pp.198-208
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• 2013

개방형 혁신에 대한 관심이 고조되고 인터넷을 통한 공동작업이 활발해짐에 따라, 가상의 작업공간을 지원하는 시스템의 필요성이 증대되고 있다. 특히, R&D 분야에서는 연구원이 보유한 전문기술들을 묶어서 집단지성으로 이끌어 내어 창의와 협업을 지원하는 R&D 협업시스템의 개발이 요구된다. 따라서 본 논문에서는 이식성이 높고 다양한 R&D 협업 환경에 능동적으로 대처할 수 있는 확장성과 안정성을 구현한 R&D 협업시스템을 소개한다. 향후에도 R&D 및 ICT 환경변화에 따른 지속적인 보완 개발을 통하여 R&D분야에 적용할 경우 미래 전 산업 연구 개발 분야에 큰 도움을 줄 수 있을 것으로 기대된다.

• Bulletin of the Korean Mathematical Society
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• v.52 no.4
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• pp.1365-1373
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• 2015

We find all ${\mathcal{F}}{\mathcal{M}}_m$-natural operators A transforming torsion free classical linear connections ${\nabla}$ on m-manifolds M into base preserving fibred maps $A({\nabla}):{\bar{J}}^rY{\rightarrow}J^rY$ for ${\mathcal{F}}{\mathcal{M}}_m$-objects Y with bases M, where ${\bar{J}}^r$, $J^r$ are the semiholonomic and holonomic jet functors of order r on the category ${\mathcal{F}}{\mathcal{M}}_m$ of fibred manifolds with m-dimensional bases and their fibred maps with embeddings as base maps.

• Transactions of the Korean Society of Mechanical Engineers
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• v.10 no.4
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• pp.494-503
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• 1986

본 연구에서는 저강도.고연성재인 일반구조용압연강 SB41의 평골 CT 시험편과 양측면홈이 있는 CT시험편을 사용하여 ASTM R유선법, JSME R유선법,SZW법, 초음파법 및 전입차법에 따라 J$_{IC}$를 종합적으로 평가하였다. 복수시험편법인 ASTM 및 JSME 및 JSME R유선법을 상호 비교고찰하므로써 저강도.고연성재에 대한 파환인성평가 의 적용한계를 명확히 하였으며 단일시험편법인 초음파 및 전입차시험법은 효율적이고 간편한 J$_{IC}$평가법임을 확인하였다.

• Communications of the Korean Mathematical Society
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• v.10 no.1
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• pp.207-213
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• 1995

Let $(\Omega, F, P)$ be a probability space with F a $\sigma$-algebra of subsets of the measure space $\Omega$ and P a probability measure on $\Omega$. Suppose $a > 0$ and let $(F_t)_{t \in [0,a]}$ be an increasing family of sub-$\sigma$-algebras of F. If $r > 0$, let $J = [-r,0]$ and $C(J, R^n)$ the Banach space of all continuous paths $\gamma : J \to R^n$ with the sup-norm $\Vert \gamma \Vert = sup_{s \in J}$\mid$\gamma(s)$\mid$$ where $$\mid$\cdot$\mid$$ denotes the Euclidean norm on $R^n$. Let E,F be separable real Banach spaces and L(E,F) be the Banach space of all continuous linear maps $T : E \to F$.