• 해양환경안전학회:학술대회논문집
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• 해양환경안전학회 2017년도 공동학술발표회
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• pp.169-169
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• 2017

• 기술사
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• 제35권4호
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• pp.24-28
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• 2002

For a long time, we use the chemical analysis only for the evaluation of potable water. but recently water which Is good or not for the vital body should be proposed to take additional new evaluation technology Nuclear Magnetic Resonance(NMR). The optimum value of NMR data should be below 100Hz of Half width.

• Journal of applied mathematics & informatics
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• 제28권5_6호
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• pp.1055-1071
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• 2010

Recently, a number of algorithms have been proposed for numerical evaluation of Hankel transforms as these transforms arise naturally in many areas of science and technology. All these algorithms depend on separating the integrand $rf(r)J_{\upsilon}(pr)$ into two components; the slowly varying component rf(r) and the rapidly oscillating component $J_{\upsilon}(pr)$. Then the slowly varying component rf(r) is expanded either into a Fourier Bessel series or various wavelet series using different orthonormal bases like Haar wavelets, rationalized Haar wavelets, linear Legendre multiwavelets, Legendre wavelets and truncating the series at an optimal level; or approximating rf(r) by a quadratic over the subinterval using the Filon quadrature philosophy. The purpose of this communication is to take a different approach and replace rapidly oscillating component $J_{\upsilon}(pr)$ in the integrand by its Bernstein series approximation, thus avoiding the complexity of evaluating integrals involving Bessel functions. This leads to a very simple efficient and stable algorithm for numerical evaluation of Hankel transform.

• 기술혁신학회지
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• 제8권2호
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• pp.650-676
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• 2005

It is important to identify the mid and long-term strategic technologies and evaluate technology level for the establishment of national R&D policy to upgrade technology level in Korea. This paper summarizes the result of technology level evaluation for 99 key technologies of 'National Technology Road Map', which consists of 5 visions, of Korea. The technology level, the technological gap between Korea and world-top country, the role of government to upgrade technology level, etc. were investigated by the survey (total 1,067 respondents) and the interview with experts related to key technologies. The average technology level of Korea was $65.1\%$ of that of world-top country and average technological gap was 5.8 years. The technology level of vision I 'Building an Information-Knowledge-Intelligence Society' was $71.6\%$ and highest among 5 visions. The highest technology level among 99 key technologies was $85.6\%$ for 'Digital Broadcasting Technology' and the lowest was $20\%$ for 'weather Control Technology'. The major reasons of technological gap were investigated as the lack of R&D personnel ($23.8\%$), the shortage of R&D funds ($17.8\%$), and the insufficiency of basic research ($15.4\%$), in sequence. The average technology level of USA was evaluated to highest in the world. It was presented that the technological power of China increased rapidly in the expert interview. The result of technology level evaluation would be primary information for various national S&T planning, such as S&T basic plan, S&T foresight, technology road map, etc.

• 전자공학회논문지
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• 제50권3호
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• pp.187-202
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• 2013

선진국의 고령사회 도래 및 웰빙 확산, 중국, 인도 등 후발 공업국의 급성장에 따라 최근 전자의료기기시장이 크게 확대 되고 있다. 이중 다소비 생활밀착형 전자의료기기중 하나인 개인용전기자극기는 통증완화, 재활치료, 근육운동 등의 목적으로 사용되는 전기자극기로써 가정에서 개인적으로 사용하는 만큼 그 안전성 및 성능 확보는 사용자의 측면에서 매우 중요하다고 볼 수 있다. 그러나 현재 개인용전기자극기에 대한 안전성과 유효성을 평가하는 가이드라인이 아직 마련되지 않은 실정이다. 따라서 본 연구에서는 국제수준에 부합하는 개인용전기자극기의 안전성과 성능을 평가하기위해 관련 국내외 규격을 검토하였고 시험항목, 기준 및 방법을 제안하였다. 또한 제안된 시험항목에 대한 시험검증을 통하여 최종적으로 국제 조화된 안전성 및 성능 평가 항목을 도출하였다. 본 연구 결과를 통하여 개인용전기자극기의 품질 및 안전성 향상을 도모함으로써 국내 전자의료기기산업의 국제 경쟁력 확보에 기여할 수 있을 것으로 기대된다.

• 한국건설관리학회논문집
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• 제18권4호
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• pp.27-35
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• 2017

본 연구에서는 수익접근법을 기본 모형으로 하여 건설부문의 특성을 반영한 건설부문 기술가치 평가를 시도하였다. 수익접근법은 향후 발생할 미래수익에 대한 현재가치 가운데 기술로 인한 부분만을 고려하여 기술가치를 산정한다. 무엇보다 건설기술은 표준화된 일반 제품에 비해 많은 변수가 존재하므로, 건설기술가치평가는 가치평가의 표준화된 산식은 물론 건설 기술전문가, 시장전문가 팀의 정성적 평가에 대한 의존도가 높을 수밖에 없다. 그리고 건설부문은 매출과 수익성 추정에 대한 불확실성이 타 산업 대비 높으므로, 할인율과 현금흐름 추정에 보수적인 입장을 취해야 한다. 실증분석을 위해 경제적 수명 및 현금흐름은 산업통상자원부의 실무가이드와 전문가들의 평가를 반영하여 산정되었고, 할인율 및 기술기여도는 건설업의 특성을 반영시켜 분석하였다. 먼저 보수적 평가에 따른 위험프리미엄의 증가로 할인율이 15%로 산정되었다. 그리고 기술의 우수성으로 개별 기술강도 비율이 72%로, 이에 따라 기술기여도는 46.7%로 추정되었다. 이 같은 할인율과 기술기여도의 변화를 종합하여 기술가치평가 금액은 318백만원으로 추정되었다. 본 연구가 시사하는 바는 다음과 같다. 먼저, 현재 종합 및 전문건설업 2부문으로 구분된 공종별 또는 업종별 구분을 다양화하고, 기본적 통계자료 확보 및 DB구축이 필요하다. 건설기술의 다양한 변동성으로 인해 평가에 참여하는 전문가들의 정성적 평가에서의 역할이 더욱 강조된다.

• Carbon letters
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• 제10권1호
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• pp.9-13
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• 2009

We propose an evaluation method of the relative content of single-walled carbon nanotubes (SWCNT) in SWCNT soot synthesized by arc discharge using UV-VIS-NIR absorption spectroscopy. In this method, we consider the absorbance of semiconducting and metallic SWCNTs together to calculate the relative content of SWCNTs with respect to a highly purified reference. Our method provides the more reliable and realistic evaluation of SWCNT content with respect to the whole carbonaceous content than the previously reported method.

• 한국응급구조학회지
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• 제13권3호
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• pp.19-28
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• 2009

Purpose : This study compared before and after emergency patient evaluation education of the 1st graders at the department emergency medical technology(EMT) students, and analyzed its effects on patient evaluation ability after education. The aims of this study was to develop effective educational program and to provide basic materials for its educational method. Methods : This study was carried out by 66 first graders attending the department of emergency medical technology(EMT) at a college in G province and data were collected from Apr. 1 to 2, 2009. The questionnaire consisted of knowledge of emergent patient evaluation, academic self-efficacy, and technical performance after emergent patient evaluation education. We analyzed the influence of knowledge and academic self-efficacy on accurate technical performance with SPSS 14.0 version. Results : 1. In knowledge score, it was 9.27 before education and increased to 35.19 after education and that there was statistically significant difference. In academic self-efficacy, task difficulty preference scored 2.73 before education and 3.97 after education, self-control efficacy scored 2.84 before education and 4.05 after education, self-confidence scored 2.45 before education and 4.21 after education. There were statistically significant increases after education. Technical performance scored 0.00 before education, but it scored 18.78 after education and there was statistically significant increase after education. 2. In sex as one of general characteristics, self-confidence which was sub-factor of academic self-efficacy scored higher in male students(4.28) than in female students(4.10). There was statistically significant difference(p < 0.05). 3. Knowledge had positive correlation with self-control efficacy which was the sub-factor of academic self-efficacy(r = 0.249, p < 0.05) and self-confidence which is the sub-factor of academic self-efficacy had the positive correlation with technical performance(r = 0.258, p < 0.05). 4. Self-confidence which was the sub-factor of academic self-efficacy(B = 0.372, p < 0.05) had statistically significant influence on technical performance. ability of self-confidence to explain technical performance(R2) was 11.10%. Conclusion : From the results of this study, it is necessary that EMT students should learn professional first aid, accurate patient evaluation through self-efficacy development.

• 한국경영과학회:학술대회논문집
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• 한국경영과학회 2007년도 추계학술대회 및 정기총회
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• pp.152-155
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• 2007

The object of this research is to evaluate the priority of R&B project alternatives which were already screened by both feasibility and suitability of technological performance. This research is a selection model for R&D project alternatives after setting phase. And it is designed by CHP model which include individual and mutual weights. This model have 5 steps. (1) Setting Technology-Modules derived on the setting phase (2) Presenting the evaluation standards divided with 'M-Field' and 'T-Field' (3) Assessing the evaluation standard and technology modules (4) Obtaining and integrating the individually and mutually effective weights (5) Selecting the technology modules based on the priority of order by CHP. Through these steps, this model can suggest the evaluation way from specific technology levels to project level. And it can be guaranteed to perform the selected module set.

• 한국방사성폐기물학회:학술대회논문집
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• 한국방사성폐기물학회 2018년도 춘계학술논문요약집
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• pp.275-276
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• 2018