• Journal of Korea Technology Innovation Society
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• v.9 no.3
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• pp.578-605
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• 2006

This paper aims to review the regulations in the field of science and technology administration, especially the legal regulations in the management of public technologies. For this purpose, after reviewing the legal system and contents of regulation, analyze and estimate the adequacy and validity of them. So that, in this paper it is layed emphasis on that whether the regulation system is proper in point of legalism or theory of regulation law, and the regulations are appropriate when comparing with that of foreign countries, and the improvement is necessary in operating regulation system itself.

• KSBB Journal
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• v.20 no.5 s.94
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• pp.338-340
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• 2005

Covalent modification of a protein with polyethylene glycol (PEG) has become one of the most widely used and well established drug enhancement strategies in the biopharmaceutical industry. The general benefits enjoyed by PEGylation, such as prolonged serum half-lives or reduced immunogenicity in vivo, are well known. By now the PEGylation process has been performed with purified proteins, and it is required to recover the desired PEGylate by a multi-step purification process. The ultimate aim of our research is to develop an integrated process of PEGylation and in vitro refolding starting with inclusion body material. For this, we investigated the feasibility that a protein could be PEGylated under a denaturing condition and also the PEGylated proteins could be refolded correctly. Using lipase as a model protein, we found that it was PEGylated in the presence of 8M urea and that the PEG molecules covalently attached to lipase did not appear to hinder its refolding.

• Journal of the Society of Cosmetic Scientists of Korea
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• v.21 no.2
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• pp.129-139
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• 1995

To confirm the usefulness of partial least-squares(PLS) and multiple scattering correction(MSC) method for quantitation of surfactants in [quantitative methods using FT-lR, reconsitituted mixtures of LAS, MES and ELA-9 were tested. Each mixture was dissolved in 50% EtOH, dried, and applied to the KBr cell. From the IR spectra of these mixture, the variance spectrum was obtained. After repeated calibrations for the various regios of this spectrum, we found that 1245-1130cm-1 and 1070-1010cm-1 showed the strong correlation with each component of the sample mixture: all the correlation coefficients were 1.000 and quantitative errors did not exceed 0.32%. From this result, we concluded that PLS method and MSC method are very useful and can be successfully applied to Quality control.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.20 no.6
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• pp.157-169
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• 2010

As the information society changes into the ubiquitous computing society, the importance of information security has increased. Governments and enterprises are carrying out various information security activities to operate their information asset effectively. Since 2006, the Korean government has implemented 'Advance Diagnosis' policy to analyze the vulnerability of the information security from the early stage of the information system development to secure the information stability. This study proposes an analyzing framework for the economic effects of Advance Diagnosis for Information Security and presents an illustrative application em a real Advance Diagnosis case. The results of this study can be applied to secure the economic justification of government policies for the security of information systems.

• Management & Information Systems Review
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• v.36 no.3
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• pp.185-202
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• 2017

This study suggests the estimation of the demand for the exhibition center in Busan and to valid reasons for the establishment of the 2nd Convention Center in Busan. The validity for the estimated demand is acquired by examining the studies conducted by the Ministry of Commerce Industry and Energy. The qualitative data for the phased establishment of the area is suggested in accordance to the results of the demand estimation. From previous study(Oh, 2017), Kangseo-gu, Busan has been evaluated to be the final candidate for building a new convention center in the city of Busan. The potential synergy effects of on-going developmental projects in Kangseo region is one of the influential factors for the MICE professionals' opinion in the qualitative analysis. Moreover, the region has available land to hold the facility of more than 100,000 square meter to overcome the current drawback of BEXCO, insufficient space to hold large events. Lastly, the expansion of Gimhae International Airport would bring an increased international flights that would also lead to an increase in MICE industry for the region. The virtual effect of the more than one million $m^2$-sized oconvention center is examined via Huff Model and the results suggests a logical estimated data for further demand needed for the south east regions, not just within the city of Busan.

• Water for future
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• v.18 no.4
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• pp.327-333
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• 1985

The flow pattern of the nearshore current generated around the breached breakwaters and river-mouth was simulated by numerical model in the case of the inclined incident wave without river discharge when the detached breakwaters were installed at the river-mouth area for the protection against the blockade of the river-mouth. The validity of the numerical model was testified y comparision with the results obtained through the hydraulic model test at the fixed bed. The deformation of the topographic features around the river-mouth and the detached breakwaters was examined through the three-dimensional hydraulic model test at the movable bed. The usefulness of the detached breakwater work for the protection against the blockade of the river-mouth was identified by the experimental results.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 1993.10a
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• pp.561-565
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• 1993

본 연구에서는 산업 현장에서 일반적으로 가장 많이 사용되는 CAD 소프트웨어를 이용하여 모든 기계류에 공통적으로 쓰이는 기본적인 기계 요소들에 대한 자동 설계 시스템을 구축하려는데 목적을 둔다. 이는 단순히 제도 수준에만 머무르고 있는 현재의 CAD 시스템에 사용 조건에 맞는 기계요소에 대한 강도를 평가하여 적절한 기계 부품을 자동적으로 선정하고 도면으로 보여 주는 기능을 부여하여 생산성을 높이는데 그 의미가 있다. 또한 설계 과정의 자동화 가능성 여부에 대한 타당성을 검토하고자 한다. 연구방법으로는 C언어를 이용하여 각 기계 부품에 대한 설계(선정) 프로그램과 데이타 베이스 관리 프로그램을 작성하고, LISP언어를 이용하여 선정된 기계 부품을 자동적으로 그려 주는 방안을 제시한다. 개발에 사용된 CAD 소프트웨어는 PC에서 가장 많이 사용되는 AutoCAD를 사용한다.

• Proceedings of the Korean Society of Propulsion Engineers Conference
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• 2006.05a
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• pp.7-10
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• 2006

A quasi-equilibrium model is used in order to aid movement and ballistic analysis for a propellant actuated device(PAD) system. The validity of the model is examined by experiments of a PAD system. The appropriateness of its usage for application was explored by comparing the tendency of experiments and analysis results, and the coefficients of friction and heat loss were obtained. The design method developed will be applied to the design of PAD systems.

• Korean Journal of Air-Conditioning and Refrigeration Engineering
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• v.26 no.9
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• pp.434-440
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• 2014

Experiments were performed to verify if performance and characteristic curves obtained from the temperature differential defrosting method, where surface temperature is measured to judge defrosting condition, can be reproduced by the photoelectric technology where defrosting condition is judged by photoelectric sensors. The output voltage of a phototransistor and heating capacity, power consumption, and surface temperature of the outdoor heat exchanger are compared. The results showed that the photoelectric sensors can be used as a defrost control device. On-off control timings in temperature differential defrosting method are in good agreement with those predicted by the high and low threshold output voltages of the photoelectric sensor.

• Communications for Statistical Applications and Methods
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• v.1 no.1
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• pp.206-214
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• 1994

본 논문은 1994학년도 부터 부활된 대학별고사 실시에 따른 문항분석, 표준 점수제 그리고 검사동등화의 문제점을 지적하기 위하여 교육측정이론의 기본 개념을 소개하는데 있다. 대학별고사의 타당성과 신뢰성을 보장받기 위하여는 양질의 문항제작이 우선하여야하며, 이를 위하여 문항분석은 종전에 사용하던 고전검사이론 보다는 문항반응이론을 이용하는 것이 바람직하다. 문항반응이론에 의한 문항분석은 피험자 집단의 특성에 의하여 문항특성이 달리 분석되지 않는 특징을 지니고 있기 때문이다. 문항이 논술형일 경우 채점자간 신뢰도와 채점자 내 신뢰도를 간과하여서는 안될 것이다. 다양한 선택과목을 채택하는 대학별 고사에서 입학 사정을 위하여 원점수를 사용하거나, 표준점수 혹은 검사동등화 방법을 이용하고 있으나 이는 교육측정이론에 위배된다. 다른 과목에 대한 인가의 능력을 상대비교 할 수 없으며, 표준점수와 검사동등화는 동일 능력에 대한 상대비교를 위한 방법이다. 특히 검사동등화는 동일 특성, 공정성, 모교집단 불변성, 대칭성을 전제한다. 표준점수제에 의하여 수험생들의 다른 능력을 상대 비교하는 방법은 다른 능력이 점수로 표현되기 때문에 가능하나 그 점수가 무엇을 의미하는 가를 분석할 때는 교육평가의 기본 철학에도 위배된다.