• International Journal of Quality Innovation
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• 제9권2호
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• pp.57-77
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• 2008

The $21^{st}$ century is a new century of environmental protection. Environmental protection is one of the most important subject matters yet to come. Moreover, as the public pays more attention to environmental problems, enterprises should increase their investment in environmental management. Therefore, determining the investment level for environmental management and allocating the investment to associated environmental management activities has become a major task. The principal and agent theory and sales response functions are used for analysis in this research. The allocation of capital investment in environmental management is found to have significant impact on the aggregate sales response, aggregate profit and investment level. Therefore, in preparing the budget for environmental management, enterprises should focus on investment allocation decisions, determine the investment level and allocation method using integrated means, and apply submarket data in the allocation decision-making process. In other words, in setting the investment level, executive management should take managers' willingness into consideration. In allocating capital investment, managers should identify the optimal allocation method based on submarket characteristics.

• Corrosion Science and Technology
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• 제12권6호
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• pp.295-303
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• 2013

Silane surface treatments have been developed as an alternative for toxic and carcinogenic chromate-based treatments for years. It is consistently observed that ultra-thin films offer excellent corrosion protection as well as paint adhesion to metals. The silane performance is comparable to, or in some cases better than, that of chromate layers. Based on the tetra-ethylorthosilicate(TEOS) and methlyl trieethoxysilane(MTES), inorganic sol was synthesized and formed hybrid networks with $SiO_2$ nano particle and polypropylene glycol(PPG) on Zn alloyed steel surface. According to SST results, addition of 10nm and 50nm $SiO_2$ nanoparticle in synthesized solution improved anti-corrosion property by its shear stress relaxation effect during curing process. Also, SST results were shown that anti-corrosive property was affected by the amounts of organic compounds.

• Corrosion Science and Technology
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• 제15권2호
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• pp.69-77
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• 2016

In the present study, polyester-melamine coating systems with natural wood fiber (NWF) were prepared and the effects of NWF on the corrosion protectiveness of the polyester-melamine coating were examined using EIS analysis. From the results, higher average surface roughness was observed with increase of NWF content. Water diffusivity and water uptake into the polyester-melamine coatings with NWF were much higher than that into the pure polyester-melamine coating. The decrease in the impedance modulus |Z| was associated with the localized corrosion on carbon steel, confirming that corrosion protection of the polyester-melamine coatings with NWF well agrees with its water transport behavior.

• 산업기술연구
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• 제18권
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• pp.453-460
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• 1998

The purpose of this study was to analyze their status of underground storage tank(UST) facilities and level of soil contamination, and to establish its management criteria. DB program was developed to analyze the correlation between specific characteristic of UST and level of soil contamination. For a suitable management of UST, leakage monitoring and inspection method of UST was investigated. Inspection period was established based on the leakage rate. The most dominant factor for leakage seemed to be caused by the corrosion. Therefore, main factor, construction method and installation year of UST, and corrosion protection system were suggested for optimal protection of UST. Considering the present management status of UST in Korea, inspection and management criteria of UST should be accomplished in term of contamination protection of leakage, and flexible regulation act should be introduced for each specific site.

• Corrosion Science and Technology
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• 제17권1호
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• pp.30-36
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• 2018

The high rate of corrosion of magnesium alloys makes it limited for industrial applications. Therefore, surface treatment is required to enhance their corrosion resistance. In our study, a chemical conversion coating for protecting the corrosion of the magnesium alloy, AZ31B, was prepared by using a phosphate-permanganate solution. The chemical conversion coating had a limited protection ability due to defects arising from cracks and pores in the coating layer. The sol-gel coating was prepared by using trimethoxymethylsilane (MTMS) and 3-glycidoxypropyltrimethoxysilane (GPTMS) as precursors, and aluminum acetyl acetonate as a ring opening agent. The corrosion protection properties of sol-gel and conversion coatings in 0.35wt% NaCl solution were measured by the electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization test. The EIS results indicated that the resistance of the chemical conversion coating with the sol-gel coating was significantly improved through the sol-gel sealed phosphate-permanganate conversion coating. The results of the potentiodynamic polarization test revealed that the sol-gel coating decreased the corrosion current density ($I_{corr}$). The SEM image showed that the sol-gel coating sealed conversion coating and improved corrosion protection.

• 융합보안논문지
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• 제11권2호
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• pp.3-11
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• 2011

오늘날 첨단기술 보호는 국가간 경계선이 무너진 경제 무한 경쟁속에서 기업과 국가가 살아남기 위한 가장 기본적 요구사항이 되었다. 이러한 상황속에서 그간 정부 주도의 산업보안활동이 민간 중심의 자율적 활동으로 점차 변화되면서 기업에서는 기술보호를 위해 막대한 예산을 투입하여 첨단보안시스템을 설치하고 있다. 그러나 애써 구축된 첨단보안시스템의 감시망이 전통적 방식으로 간단히 무력화시키는 사례가 발생하여 새로운 패러다임의 보안대책이 필요하게 되었다. 본 논문에서는 날로 다양해지는 위협으로부터 첨단기술을 보호하기 위해 기존의 보안시스템과 사회공학적 위협 분석 기법을 융합한 기술유출 조기경보체계에 대한 모델에 대해 제안하였다.

• Corrosion Science and Technology
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• 제18권6호
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• pp.232-242
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• 2019

In this study, hydrophobically modified fumed silica was added to the PVDF coating to improve corrosion protection performance. Two types of silane modifiers, trimethylchlorosilane (TMCS) and hexamethyldisilazane (HMDZ), were used for hydrophobic modification of the fumed silica. The composition of modified fumed silica was analyzed by Fourier transform infrared, X-ray photoelectron spectroscopy, and elemental analysis. The dispersion of modified fumed silica in the PVDF coating was observed by the transmission electron microscopy, and the hydrophobicity of PVDF coating was analyzed by the water contact angle. Surface properties were examined by the field emission scanning electron microscopy and scanning probe microscopy. Potentiodynamic polarization was conducted to confirm corrosion protection performance of PVDF coating in terms of hydrophobically-modified fumed silica contents. As a result, the average surface roughness and the water contact angle of the PVDF coating increased with modifier contents. The results of the potentiodynamic polarization test showed an increase of the E_corr values with increase of the hydrophobicity of PVDF coating. Thus, it clearly indicates that the corrosion protection performance of PVDF coating improved with the addition of the hydrophobic-modified fumed silica that prevents the penetration of moisture into the PVDF coating.

• 한국콘텐츠학회논문지
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• 제17권7호
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• pp.487-497
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• 2017

우리나라도 기술이나 영업비밀이 유출되는 사례가 빈번히 발생하면서 분쟁해결 시스템의 정비도 필요하게 되었다. 첫째, 관련 개별 법률을 제정 시행하면서 다양한 법률이 분산되어 제정 시행되어, 중복성의 문제, 개별 법률 간의 충돌, 포괄성 통합성 연계성 저하의 문제가 되고 있다. "기술유출방지 및 보호지원에 관한 법률"(가칭)체계로 독립적인 법체계가 필요하다. 이렇게 함으로써 현재, 중소기업청, 산업통상자원부, 특허청, 공정거래위원회, 무역위원회, 경찰청, 국정원 등 정부부처별로 분산되어 있는 기술보호지원제도를 제도적으로는 통합화 일원화하되, 기능적으로 분담을 통하여 정책을 추진할 필요성이 있다. 둘째, 특허법상의 '특허심판원', 발명진흥법상 '산업재산권분쟁조정위원회', 산업기술의 유출방지 및 보호에 관한 법률상의 '산업기술분쟁조정위원회', 중소기업기술보호지원에 관한 법률상, '중소기업기술분쟁조정 중재위원회'가 설치되어 있으나, '기술유출방지 및 보호 지원에 관한 법률'(가칭) 통합법을 제정하면서 중소기업청, 혹은 산업통상자원부 산하에 '기술분쟁심판조정위원회'(가칭)로 통폐합 설치 운영 두는 방안이 바람직하다.

• 한국산학기술학회논문지
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• 제22권3호
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• pp.671-678
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• 2021

2020 국방기술통제목록 연구는 기술보호 등급분류 설정 시 전문가 의견을 수렴하여 조사항목 설정, 등급분류 기준 설정 방법으로 정성적 기준에 의존했다. 이를 보완하여 기술보호 등급분류 설정의 정량적 기준을 제시하고자 본 연구를 수행했고, 본 논문에서는 통계기법을 적용한 기술보호 등급분류 설정 방법론을 제시하였다. 연구절차는 3단계로 진행하여 조사항목 설정, 기술보호 등급분류의 당위성을 입증하고자 하였다. 첫째, 판단지표를 선정하기 위해 2020 국방기술통제목록 작성 시 조사되었던 6개 조사항목, 즉 요소기술의 상대기술수준, 체계구현관점중요도, 국가안보관점중요도, 난이도, 기술이전기피, 파급효과에 대한 통계적 분석, 신뢰도 검증을 수행하여 조사항목을 설정하였다. 둘째, 선정된 조사항목을 AHP기법으로 계층화하여 전문가 설문조사를 수행하고 의견을 점수화했다. 도출된 조사항목의 가중치를 이용하여 요소기술의 점수를 산출했다. 마지막으로 정규분포 산포도와 사분위수 산출 방식, 카플란마이어 추정치 비율을 연계하여 3단계 등급설정을 하고, 723개 요소기술 점수의 카플란마이어 추정치값에 적용하여 기술보호등급을 3단계 기준점수를 제시하였다. 본 연구를 통해 설정된 등급설정표를 이용하여 일관성 있는 객관적인 기준을 제시할 수 있을 것이라 판단된다.

• Corrosion Science and Technology
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• 제12권1호
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• pp.27-33
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• 2013

According to its merits about high curing speed and low emission of volatile organic compounds, UV curable inorganic-organic coating technology has been developed as an alternative for toxic and carcinogenic chromate-based treatments for years. It is consistently observed that ultra-thin films offer excellent corrosion protection as well as paint adhesion to metals. Based on the tetra-ethylorthosilicate(TEOS) and methacryloxypropyl trimethoxysilane(MPTMS), inorganic sol was synthesized and formed hybrid networks with UV curable acrylic monomer, 6-hexanediol diacrylate(HDDA), trimethylolpropane triacrylate(TMPTA), pentaerylthritol triacrylate(PETA). Several methods were used to test their properties such as salt spray test, potentiodynamic measurement, tape peel test, etc. It was shown that anti-corrosive property and stability of storage were affected by the molecular ratios of inorganic and organic compounds. It was not only the stability of storage, but had a excellent anti-corrosive, paint adhesive, and anti-solvent properties in a final molar ratios of 0.6/0.04/0.86/0.005 (TEOS/MPTMS/Acetone/HNO3) and 0.08/0.106/0.081/0.02 (TMPTA/HDDA/PETA/photo initiator).