• 문화기술의 융합
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• 제9권3호
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• pp.293-298
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• 2023

첨단 과학기술 강군으로 군(軍) 조직이 거듭나기 위해서는 과학기술의 빠른 발전속도에 맞춰 군에 접목이 가능한 과학기술을 식별하고, 이를 신속하게 군(軍) 조직에 적용할 수 있어야 하며 이는 첨단 무기체계의 신속한 획득을 위해 소요군이 중심이 되는 국방R&D 기획체계의 변화가 필요하다는 공감대가 확산되고 있는 실정이다. 이러한 측면에서 현 정부의 국방정책을 성공적으로 달성하기 위해서는 국방에 필요한 첨단 무기체계가 신속하게 소요제기부터 획득까지 연계되도록 첨단 과학기술 군으로 발전하기 위한 국방기획 및 제도·조직과 기능을 면밀히 살펴보고 전력증강 및 운영 체계에 대한 재정비를 실시해야 할 것이다. 따라서 본 연구는 '국방혁신 4.0'을 통해 우리나라 군 조직이 첨단과학기술을 접목한 고효율 국방운영 체계에 제언하는 바이며 더불어 본 연구에 이어 관련한 후속연구가 이루어지길 바란다.

• 한국기계가공학회지
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• 제15권1호
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• pp.20-25
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• 2016

Recently, the requirements for high precision and efficiency machining are gradually increased to raise international competitiveness at the industrial fields of automotive and gears. This trend had made effects on the industrial fields in Korea and which needs further studying of high accuracy and efficiency machining. This study is to investigate the effects of Jig type chuck for roundness improvement in CNC turning machining of high stage speed gear. After hobbing machining, Dimensional change before and after heat treatment was very largely generated. In order to solve this problem was to develop a jig type chuck. After the heat treatment, the operation of the chuck which was the most distinguished equipment among Jig type chuck(0.006mm), Scroll type chuck(0.05mm) and Bolt type chuck(0.04mm). Therefore, Jig type chuck was satisfied the requirement from the actual field(0.02mm).

• 한국멀티미디어학회논문지
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• 제17권12호
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• pp.1393-1401
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• 2014

This paper presents an adaptive image interpolation method using a pixel-based neighbor embedding which is modified from the patch-based neighbor embedding of contemporary super resolution algorithms. Conventional interpolation methods for high resolution detect at least 16-directional edges in order to remove zig-zaging effects and selectively choose the interpolation strategy according to the direction and value of edge. Thus, they require much computation and high complexity. In order to develop a simple interpolation method preserving edge's directional shape, the proposed algorithm adopts the simplest Haar wavelet and suggests a new pixel-based embedding scheme. First, the low-quality image but high resolution, magnified into 1 octave above, is acquired using an adaptive 8-directional interpolation based on the high frequency coefficients of the wavelet transform. Thereafter, the pixel embedding process updates a high resolution pixel of the magnified image with the weighted sum of the best matched pixel value, which is searched at its low resolution image. As the results, the proposed scheme is simple and removes zig-zaging effects without any additional process.

• 노인간호학회지
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• 제20권sup1호
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• pp.160-165
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• 2018

Purpose: There is a need to examine changes in the health care environment and the impact on gerontological nursing care in the era of the Fourth Industrial Revolution. In this article recent healthcare paradigm changes, gerontechnology, high tech and high touch, person-centered approaches are discussed. Methods: A narrative review was used. Results: Cyber physical system, artificial intelligence, advance and convergence of bioengineering, and information communication technology are changing the health care paradigm to "precision", "prediction" and "personalization". Entry into the global aging society and the surge in the elderly population worldwide has led to searches for a new means to prepare for projected demands of this growing population. Thus, efforts such as gerontechnology have been made to apply and utilize recent innovative science and technology in order to promote the health and life of elders. There is a great emphasis on the convergence of high tech and high touch, in which humanistic and artistic approach are critical in order to assure that technology is beneficial to human beings rather than harmful. Conclusion: Positive healthcare experiences among patients and their families are emphasized by utilizing new technology and employing high touch while providing personalized care with a person-centered approach.

• 기술혁신연구
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• 제23권3호
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• pp.373-396
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• 2015

본 연구는 기술보증기금의 기술평가자료를 활용하여 고성장기업의 결정요인에 대하여 분석하였다. 본 연구가 기존 연구와 다른 점은 3가지이다. 첫째, 현재 고성장 기업이 아닌, 향후 고성장기업으로 성장할 기업의 결정요인을 분석하였다. 둘째, 고성장기업을 매출과 고용 2가지 측면에서 각각 구분하여 분석하였다 즉, 매출증가와 고용창출에서 모두 고성장을 달성한 경우, 고용창출 측면에서는 고성장을 기록했지만 매출증가 측면에서는 저성장인 경우, 그리고 매출증가만 고성장을 달성하고 고용창출은 저성장을 기록한 경우의 세 가지 유형으로 구분하여 분석하였다. 셋째, 기술보증기금 기술평가모형(KTRS)의 기술평가지표를 설명변수로 적용하였다. 분석결과, 기술의 수명주기상 위치가 적절하고 기술의 완성도가 높을 경우에는 향후 매출과 고용이 모두 고성장하고 있다. 기술인력관리가 잘 되는 기업은 고용측면에서는 고성장을 하지만 매출측면에서는 오히려 저성장하고 있다. 이러한 결과는 고용고성장기업이 주로 기술인력관리가 중요한 하이테크산업에서 발생될지도 모른다는 추론을 가능케 한다. 이에 하이테크산업 여부를 나타내는 더미변수를 추가하여 분석한 결과, 하이테크산업에 속한 기업은 고용고성장의 가능성이 높은 것으로 나타나 이러한 추론을 뒷받침하는 결과를 보였다.

• 한국건설순환자원학회논문집
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• 제1권3호
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• pp.225-232
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• 2013

규석, 시멘트, 생석회 및 소량의 무수석고에 알루미늄 분말과 물을 첨가 혼합하여 오토클레이브 중에서 고온 고압 증기양생으로 미네랄 하이드레이트 소재를 제조하였다. 수열 합성된 미네랄 하이드레이트 소재는 균일한 세포조직을 갖는 다공질 경량 기포 콘크리트이다. 미네랄 하이드레이트 소재의 대표적인 특성으로는 다수의 기공으로 인해 뛰어난 경량성 및 단열성능을 들 수 있다. 제조된 미네랄 하이드레이트 소재의 특성은 각각 밀도 $0.26g/cm^3$, 압축강도 0.4MPa, 열전도율 0.064W/mK로 나타났다. 본 연구에서는 상기의 소재 특성을 증진시키기 위하여 "기포제의 종류 및 함량, 규석 및 시멘트의 입도 조건, 기능성 첨가제 종류 및 함량"에 따른 특성 평가 및 분석을 실시하였다. 그 결과 소재의 열적 특성을 개선할 수 있었으며, 특히 기능성 첨가제인 폴리디메틸실록산 혼화제를 첨가할 경우 밀도 및 열전도율을 개선하는 동시에 탁월한 강도 증진 효과를 나타내었다.

• 동의생리병리학회지
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• 제32권6호
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• pp.384-395
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• 2018

The aim of this study was to investigate whether a novel formulation of an herbal extracts has an inhibitory effect on obesity. To determine its anti-obesity effects, we performed anti-obesity-related experiments in vitro and in vivo. Thus, our present study was carried out to evaluate the anti-obesity effect of herbal extracts using a high fat diet (HFD)-induced obese mouse model and 3T3-L1 adipose cells. The effects of each herbal extracts on lipid accumulation in 3T3-L1 cells were examined using Oil Red O staining. Results showed that treatment with each herbal extracts at $10{\sim}100{\mu}g/ml$ had no effect on cell morphology and viability. Without evidence of toxicity, herbal extracts treatment decreased lipid accumulation compared with the untreated adipocytes controls as shown by the lower absorbance of Oil Red O stain. Futhermore, compared with control-differentiated mature adipocytes, each herbal extracts significantly inhibited lipid accumulation in mature 3T3-L1 adipocytes. In the HFD-fed obese mice, body weight, liver weight and white adipose tissue weights were significantly reduced by mixture of herbal extracts administration in mouse skin. Futhermore, we found that mixture of herbal extracts administration suppressed serum triglyceride (TG), and total cholesterol (TCHO) in HFD-induced obese mouse model. The mixture of herbal extracts of permeability was estimated by measuring the transepithelial electrical resistance (TEER) value in pig skin. The optimized formulations of herbal extracts (Test 3 formulation) showed skin permeation. However, test 1 formulation containing essential oil as enhancer showed maximum skin permeation. After confirming the enhanced skin permeability, in vivo studies were performed to assess whether skin irritation potential on the basis of a primary irritation index (PII) in rabbit skin. Reactions were scored for erythema/edema reactions at 24 h, 48 h and 72 h post-application. It was concluded that the test 1 formulation was not irritation (PII = 0). The present study suggests that the test 1 formulation might be of therapeutic interest with respect to the treatment of obesity.

• 한국가구학회지
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• 제10권1호
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• pp.73-82
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• 1999

For the two decades, the modern furniture design has pursued a variety of conceptions characterized by the Post-modernism, new international styles called Memphism, High-tech, the Post-Industrial design and Deconstruction. Along with these trends, the development of new materials and technology has not only made possible the emergence of innovative furnitures and other ultra-modern products, but also presented a wide range of sensitive designs. The fast development of digital technology will surely bring about globalization in all industrial fields in the next century. Amid this rapid changes, high-tech will merge with handcraft in the area of furniture design to offer economical and more innovative concepts. This will ultimately lead to the small scale production system of a wide variety of furnitures. In the coming century, we can pursue more individualized designs and concepts appealing to human nature.

• 한국염색가공학회지
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• 제32권2호
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• pp.80-88
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• 2020

Supercritical fluid dyeing is a new alternative to the conventional aqueous process because of its environmental benefits. In this study, dyeing properties of Nylon 6 fabrics were investigated depending on dyeing temperature and pressure in supercritical CO₂ fluid dyeing system. In order to select the optimal condition for supercritical fluid dyeing of Nylon 6 fabrics, dyeing temperature and pressure were varied from 100, 110, 120℃, 200, 230, 260bar, respectively. The results of K/S values and levelling properties showed that the optimal dyeing condition for Nylon 6 fabrics was 110℃ and 230bar in the supercritical CO₂ fluid dyeing system. The washing fastness ratings of the dyed Nylon 6 fabrics under supercritical medium were good for both fading and staining except for staining on nylon.

• 한국경영과학회:학술대회논문집
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• 한국경영과학회 2001년도 추계학술대회 논문집
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• pp.233-236
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• 2001

This study explores on the static and dynamic growth patterns of high-tech ventures in Korea. We developed an integrative framework with target market (local vs. global), product/market maturity (existing vs. emerging), and technological capability (follower vs. pioneer). We also identified seven new ventures strategies as follows: i) reactive imitation, ii) proactive localization, iii) import substitution, iv) creative imitation, v) early market-entry, vi) global niche, and vii) global innovation. With five successful Korean new ventures, we found different competitive behaviors and performance among new venture strategic types. This study also observed two different growth patterns: growth through strategic replication and growth through strategic change. It depends on whether they are pursuing similar strategy over time or different strategy within for growth. In addition, we found that creative imitation plays a stepping-stone role in two-step internationalization processes. Although this study is exploratory and needs more empirical studies, it can provide new ventures with meaningful guidelines for growth and internationalization with a dynamic perspective.