• Proceedings of the Korean Vacuum Society Conference
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• 2002.06a
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• pp.100-100
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• 2002

• The Magazine for Energy Service Companies
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• s.29
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• pp.22-23
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• 2004

ESCO가 CDM사업으로 적절한 사업을 발굴하고 해외투자자를 확보하는 기본능력을 배양할 수 있도록 사업계획서 작성을 지원하고 있으며, 앞으로 CDM사업의 준비과정에 관한 커리큘럼과 참여프로그램도 만들 계획입니다.

• KOREAN POULTRY JOURNAL
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• v.11 no.6 s.116
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• pp.88-91
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• 1979

예년에 비하여 양계산업의 경기침체가 장기화 되고 또 뉴캣슬병도 계절에 관계없이 산발적으로 발생하여 2중고통을 치루게 된다. 지금부터라도 우리 농장에 계획적인 방역지침을 작성하여 질병비상에 대한 대책을 강구하는 것이 가장 시급한 문제이다.

• 주택과사람들
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• s.205
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• pp.10-11
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• 2007

하반기에는 건설업계 사정이 더 많이 어려워질 것으로 보인다. 분양가 상한제, 원가 공개, 청약 가점제 등 각종 규제 정책이 실시될 예정이어서 주택 건설 시장의 커다란 암초로 작용할 전망이다. 건설업계에서는 하반기 분양시장을 어떻게 전망하고, 어떠한 대책 방안을 강구하고 있는지 알아보았다.

• The Journal of the Korean dental association
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• v.28 no.5 s.252
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• pp.467-473
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• 1990

• Venture DIGEST
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• s.84
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• pp.16-17
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• 2005

벤처 태동기부터 현재에 이르기까지 많은 벤처 지원정책이 존재해 왔다. 이제는 보다 벤처기업의 특성을 살린 차별화된 정책을 강구해야 할 때이다. ‘벤처코리아2005’첫째 날 진행된‘벤처 CEO 포럼’의 발표내용을 통해 벤처 지원정책의 개선방향을 짚어본다.

• Proceedings of the KTCVS Conference
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• 1993.06a
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• pp.46-46
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• 1993

• Journal of the Korean Society of Fisheries and Ocean Technology
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• v.23 no.3
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• pp.7-7
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• 1987

• Journal of Korean Society of Steel Construction
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• v.16 no.6 s.73
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• pp.819-832
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• 2004

This study describes an efficient and facile method for configuration optimum design of structures. One of the ways to achieve numerical shape representation and the selection of design variables is using the design element concept. Using this technique, the number of design variables could be drastically reduced. Isoparametric mapping was utilized to automatically generate the finite element mesh during the optimization process, and this made it possible to easily calculate the derivatives of the coordinates of generated finite element nodes w.r.t. the design variables. For the structural analysis, finite element analysis was adopted in the optimization procedure, and two different techniques(the deterministic method, a modified method of feasible direction; and the stochastic method, a genetic algorithms) were applied to obtain the minimum volumes and section areas for an efficient configuration optimization procedure. Futhermore, spline interpolation was introduced to present a realistic optimum configuration that meet the manufacturing requirements. According to the results of several numerical examples(steel structures), the two techniques suggested in this study simplified the process of configuration optimum design of structures, and yielded improved objective function values with a robust convergence rate. This study's applicability and capability have therefore been demonstrated.

• Journal of Korean Society of Steel Construction
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• v.20 no.5
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• pp.583-590
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• 2008

Blasting has been applied in newly-built steel structures for cleaning forged surfaces and increasing the adhesive property of applied painting systems. However, the effect of the blast cleaning on fatigue behavior of welded joints is not clear. In this paper, fatigue tests were carried out on out-of-plane gusset welded joints and the effect of the blast cleaning on the fatigue behavior was studied. The curvature radius at the weld toe of the surface-treated specimens by using the blast method is larger than that of as-welded specimens. By the blast cleaning compressive residual stresses were induced into weld toes. The experimental results showed that the fatigue life of surface-treated specimens is longer than that of as-welded specimens, even though the fatigue life of surface-treated specimens and that of as-welded specimens are not clearly different in the high stress range. About a 160% increase in fatigue limit could be realized by using blast cleaning.