• Journal of the Korea Institute of Information Security & Cryptology
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• v.29 no.4
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• pp.897-906
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• 2019

As the Information and Communication Technology developed, the administration computerization of the government was promoted, and cyber attacks targeting IT products are spreading all over the world due to the reverse functions. Accordingly, governments in each country have begun to verify the security in the introduction of IT products by national and public institutions in order to protect information, and established the policy required in the introduction process. This research analyzes the introduction policy of domestic IT products to identify the supplement point. In addition, we analyze trends of introduction of IT products in the major developed countries such as USA, UK, Japan, Canada, and Australia. Finally, we propose the improvement method of domestic introduction policy through comparison analysis with domestic introduction policy.

• Journal of the Korean Society for Heat Treatment
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• v.35 no.4
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• pp.211-219
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• 2022

It is known that superplastic materials with ultrafine grains have high elongation mainly due to grain boundary sliding. Therefore, in the present study we examined the influence of grain refinement, caused by a repetitive cold rolling and annealing process, on both superplastic elongation and superplastic deformation mechanism. The cold rolling and annealing process was repetitively applied up to 4 times using Fe-10Mn-3.5Si alloy. High-temperature tensile tests were conducted at 763 K with an initial strain rate of 1 × 10^-3 s^-1 using the specimens. The superplastic elongation increased with the number of the repetitive cold rolling and annealing process; in particular, the 4 cycled specimen exhibited the highest elongation of 372%. The primary deformation mechanism of all specimens was grain boundary sliding between recrystallized α-ferrite and reverted γ-austenite grains. The main reason for the increase in elongation with the number of the repetitive cold rolling and annealing process was the increase in fractions of fine recrystallized α-ferrite and reverted γ-austenite grains, which undergo grain boundary sliding.

• Journal of the Korea Safety Management & Science
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• v.24 no.2
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• pp.33-39
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• 2022

In order to improve the implementation of safety and health education at the site for industrial accident prevention activities, research was conducted to minimize inconvenience and increase utilization by redesigning and developing existing education methods. To date, occupational safety and health education has been conducted without considering the general work characteristics and functional facilities (mechanical, electrical, instrumentation, chemical) of workers (mechanical: turbine, valve, pump, hydraulic system, electrical: generator, breaker, motor, etc.). In particular, plant facilities were classified as mechanical and electrical facilities to improve the methodology for industrial safety and health education for plant maintenance workers. In addition, the "One Page Education Plan" was announced as a learning case because the spread of COVID-19 infectious diseases made it impossible to reduce or control the number of people in all groups and groups. The improvement of this training method will play a major role in improving the effectiveness of safety education in power plant workplaces.

• Progress in Superconductivity and Cryogenics
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• v.8 no.1
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• pp.5-8
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• 2006

The growth properties of MOD-YBCO films were investigated. To enhance the growth rate of YBCO layer and inhibit the build-up of HF gas during the annealing process in TFA-MOD for YBCO coated conductors the method of low pressure annealing was employed. Total pressure was changed from 700Torr to 1Torr and its effect on growth of YBCO films was compared with atmospheric one. The lower Pressure was effective to control of the pore size in MOD method . Surface morphology of YBCO films processed at low total pres sure was rough and composed of random YBCO (103) grains. But large pores, usually observed at atmospheric process in MOD disappeared and also the number of pores was reduced at low pressure annealing. Also discussed ate the effects of Fluorine-free Y and Cu precursor solution on the development of microstructure. Dense surface me phology and with less and small pores can be provided through controlling Fluorine content.

• Proceedings of the Korea Information Processing Society Conference
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• 2011.04a
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• pp.823-825
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• 2011

R&D에 관한 주요 국가 및 산업기술의 정보 유출이 문제가 되고 있다. 2009년 11월 국가과학기술지식정보서비스(NTIS)는 영국표준협회(BSI)로부터 ISO 27001에 대한 11개 도메인, 133개 보안 통제항목의 정보보호관리체계((Information Security Management System) 인증을 획득하였고 이후 사후인증 심사를 받고 있다. 본 논문에서는 정보보호 국제 표준인증인 ISO 27001과 관련하여 NTIS의 정보보호관리체계에 대하여 국가R&D정보관리의 경영적 관점에서 실증적 현황 및 성과와 향후 개선 및 발전 방향에 대하여 검토한다. ISO 27001 도입 후 133개 통제항목 중에서 적용율이 증가하였고 중부적합/경부적합/개선권고 사항이 크게 감소하였으나 정보자산 및 개인정보 관리는 지속적인 관심과 개선이 필요함을 알 수 있었다.

• Journal of the Korean Geotechnical Society
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• v.25 no.7
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• pp.47-54
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• 2009

Better understanding of in-situ mechanical behavior of pavement foundations is very important to predict long-term effects on the system performance of transport infrastructure. For this purpose resilient stiffness characterization of geomaterials is needed to properly adopt such mechanistic analysis under both traffic and environmental loadings. In this paper in-situ monitoring data from KHC test road were used to analyze the non-linear response using finite element method for a selected constitutive model of foundation geomaterials, and the results were compared with the field data.

• Monthly Duck's Village
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• s.215
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• pp.8-13
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• 2021

고병원성조류인플루엔자가 지난 4월 6일 전남 장흥에서 마지막으로 발생한 이후 한달 이상 추가 발생이 없어 종식단계에 접어들었다. 지난해 11월 26일 최초 발생한 고병원성조류인플루엔자는 235일간 가금농장에서 106건, 관상용 2건을 비롯해 야생조류에서 234건이 검출됐고, 이로 인해 487농가에서 3천만수에 육박하는 가금류가 살처분됐다. 이중 오리는 육용오리 96농가 184만9천수, 종오리 23농가 184천수가 살처분됐다. 특히 종오리의 경우 농가수로는 35%가 피해를 입었으며 사육수수로는 4월말 현재 산란종 오리수가 전년대비 17.1%가 줄어들었으며 평년에 비해서는 30% 가까이 줄어들었다. 때문에 당분간 육용오리 생산에 차질이 불가피하며 살처분 농가들의 입식도 늦어질 것으로 예상되고 있다. 이처럼 고병원성조류인플루엔자 발생으로 인해 국내 오리산업은 큰 피해를 입었으며 정상으로 회복하기까지는 상당한 시일이 소요될 것으로 예상된다. 우리나라 뿐만 아니라 전 세계적으로도 고병원성조류인플루엔자로 인해 몸살을 앓고 있다. 아시아는 물론 유럽, 아프리카, 북아메리카까지 고병원성 조류인플루엔자가 지속적으로 발생하고 있기 때문이다. 전 세계적인 고병원성조류인플루엔자 발생은 장기적으로 국내 오리산업에도 악영향을 미칠것으로 예상되고 있다. 원종오리를 수입하고 있는 영국 등에서도 고병원성조류인플루엔자가 발생함에 따라 가금류의 수입이 중단되면서 장기적으로 종오리 수급에도 차질이 예상되기 때문이다. 이에 이번호에서는 앞으로의 종오리 수급 현황 및 전망에 대해 살펴봤다.

• Journal of the Korean Society for Heat Treatment
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• v.36 no.1
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• pp.15-21
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• 2023

Recently, ultra-high strength bolts have been developed for weight lightening of a vehicle and fuel efficiency. However, some amount of diffusible H is absorbed into the bolt during its manufacturing process so that H embrittlement (HE) often occurs particularly in high strength bolts with a tempered martensitic microstructure. This brings attention to ultra-high strength pearlitic bolts with a high resistance to HE. Therefore, in this study the HE resistance of the 1.6 GPa grade pearlitic bolt was evaluated through tightening tests and slow strain rate tests (SSRTs), and fracture surfaces of failed bolts were comparatively observed. A critical H content for the tightening test turned out to be ~0.23-0.35 mass ppm. The bolt with a diffusible H content of ~0.35 mass ppm was fractured during the tightening test, showing a quasi-cleavage fracture surface, indicating the occurrence of HE. In addition, the bolt underwent premature elastic failure during the SSRT. This implies that the HE resistance of high strength bolts can be evaluated by both tightening test and SSRT.

• Korean Journal of Social Welfare Studies
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• v.45 no.2
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• pp.203-232
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• 2014

The purpose of this study is to compare the national quality regulation schemes among four countries, and to find out implications to Korean quality regulation system of social services. For this, this study fixed comparative criteria on national quality regulation schemes, and compared the quality regulation schemes of 4 countries such as England, United States, Singapore and Japan. By reviewing prior relevant studies, three criteria could be suggested.: the level of user centeredness, the effectiveness of regulatory enforcement and stability of operation system. All analysed nations share similarities in that they all eager to provide quality information to their service users and develop nationally acceptable quality standards of social services. On the contrary, differences are identified in the level of regulatory enforcement and establishment of independent body for national quality control. By these results, this study discussed the meaning of these findings and their implications on the development of Korean quality regulation system.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.14 no.6
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• pp.11-27
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• 2019

The second venture "boom" diffusion strategy can be confirmed to be focused only on financing investment and finance, including achieving 5 trillion won annually in new venture investments, creating 20 unicorns, activating M&As and creating dynamic recovery markets. Of course, existing studies show that the fund is a very important policy for corporate growth, but various policy support will be needed to effectively scale up. To overcome these limitations, the scale-up support policies already in operation are analyzed by introducing scale-up policies in advanced countries such as the U.S. and Britain. It also aims to analyze domestic scale-up policies to draw up implications for establishing more effective scale-up policies. Academically, we are very lacking in research on scale-up at home and abroad, and we propose suggestions through this comparative study of policy cases to contribute to the promotion of various studies related to the scalability aspects of future research topics related to scale-up.