• Journal of the Korean Wood Science and Technology
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• v.44 no.5
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• pp.622-628
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• 2016

This study investigated to understand the trend of international commercializing technologies and industrial status of the transportation biofuel based on lignocellulosic biomass. Two major commercializing technologies for the lignocellulosic biofuel are biochemical conversion technology and thermochemical conversion technology. It was reported that a total of 93 industrial companies were using lignocellulosic biomass of all facilities related to advanced biofuel. On the basis of commercial type, the biochemical conversion technology was identified to be the major technology in the lignocellulosic biofuel industries, showing 84% of all. Also the main products of commercial type industrial companies are bioethanol (1,155,000 tons/yr) and bio-oil (120,000 tons/yr), which are in a remarkably inadequate amount to substitute for the transportation biofuel worldwide. It was suggested that the transportation biofuel market was currently in need of further development in both technology and scale, and was in high demands of technological development and commercializing exertion.

• Food Industry And Nutrition
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• v.20 no.2
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• pp.8-12
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• 2015

나트륨(소금)의 경우 식품에 관능적 특성 부여 및 가공과정에 필수적인 물질이나 과다 섭취의 경우 고혈압 등 심혈관계 질환을 발생을 증가시키는 등 사회적인 문제가 되고 있다. 특히 한국인의 경우 장류, 젓갈 및 김치 등의 식품문화가 발달되어 WHO의 권장섭취량의 2배 이상 섭취하고 있는 실정이다. 나트륨 저감화의 경우 국민복지 향상, 의료비용 절감 및 사회적 편익비용 발생 등의 이유로 국가적 차원에서 나트륨 절감이 시급한 상황이다. 현재 식품의약품안전처 및 보건복지부 등에서 나트륨 저감화를 위한 다양한 정책 등을 추진하고 있다. 또한 세계적으로 무기염류 대체소금, 염미증진제 및 향미개선제 등의 개발 노력이 활발히 이루어지고 있는 상황이다. 그러나 낮은 관능적 특성 및 무기염류의 과량 사용에 관한 부작용 등으로 인하여 급증하는 소금대체 및 보완제 시장수요에 미치지 못하는 실정이다. 따라서 저염화 및 관능적으로 우수한 소금 대체소재 및 염미 증강물질 개발이 요구된다. 염미 및 지미상승 식물성 발효 조성물(SAP)의 경우 분리대두단백 등의 식물성 원료와 전통 장류의 제조원리를 응용한 염미증진제 또는 향미개선제이다. 관능적 특성을 조사한 결과 기존 사용되는 저염 소재에 비하여 염미 등의 관능적 특성이 우수하여 염미 및 관능적 특성 증진 소재로 활용 가능성이 높았으며 무기염류의 단점인 낮은 관능적 특성 및 무기염류에 의한 부작용 등의 우려가 없는 소재이다. 향후 염미 및 지미 상승 식물성 발효 조성물(SAP) 등의 활용방안 개발 및 적용분야 확대 등으로 국내 저염 식품 산업의 전반적 발전에 도움이 될 것으로 생각된다.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.25 no.6
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• pp.1361-1376
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• 2015

Recently, the size of the mobile game market and the number of mobile game users are growing. Also, as the mobile game's life cycle is increasing at the same time, auto program issue reappears which has been appeared in PC online games. Gamers usually tend to ignore warning messages from antivirus programs and even worse they delete antivirus program to execute auto programs. Therefore, mobile game users are easily compromised if the auto program performs malicious behaviors not only for the original features. In this paper, we analyze whether seven auto programs of "clash of clans" which has a lot more users for a long time perform malicious behaviors or not. We forecast the possible security threats in near future and proposed countermeasures based on this analysis. By analyzing auto programs of highly popular mobile game of today, we can acquire the knowledge on auto program's recent trend such as their development platform, operating mode, etc. This analysis will help security analysts predict auto program's evolving trends and block potential threats in advance.

• The Journal of the Korea institute of electronic communication sciences
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• v.8 no.12
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• pp.1841-1848
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• 2013

In this paper, the plans for improvement of real-time security monitoring accuracy and expansion of control region were investigated through comprehensive and systematic collection and analysis of the anomalous activities that inflow and outflow in the network on a large scale in order to overcome the existing security monitoring system based on stylized detection patterns which could correspond to only very limited cyber attacks. This study established an anomaly observation system to collect, store and analyze a diverse infringement threat information flowing into the darknet network, and presented the information classification system of cyber threats, unknown anomalies and high-risk anomalous activities through the statistics based trend analysis of hacking. If this security monitoring system utilizing darknet traffic as presented in the study is applied, it was indicated that detection of all infringement threats was increased by 12.6 percent compared with conventional case and 120 kinds of new type and varietal attacks that could not be detected in the past were detected.

• Journal of Energy Engineering
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• v.5 no.2
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• pp.93-107
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• 1996

Six countries are considered in the study for the comparison of their respective gas industries with the Korean gas industry: the U.S., Canada, the U.K., France, Germany and Japan. The emphases of comparison are given on the cross-evaluation of industry organizations and related regulations. In terms of industrial development stages, the Korean gas industry, with its short experience and in need of more infrastructure, is still young and at an early stage of development. Due to this reason, the study finds that it is premature for the Korean case to propose some policies like the promotion of competition in the gas transportation through third-party access to pipelines. or seeking overseas business opportunities requiring venture capital and advanced technology. Recommendations are made that Korea rather, for the time being, concentrate its energy on the construction of infrastructure and on securing supply sources and diversifying import origins, in order to strengthen it's supply capability in the face of rapidly increasing gas demand in the nation. Nevertheless, Korea will soon have to consider more seriously about the deregulation of the market and more diversified business activities through the development of high technology and managerial skills.

• Proceedings of the Korean Institute of Surface Engineering Conference
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• 2016.11a
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• pp.33-55
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• 2016

PVD(Physical Vapour Deposition)코팅은 70년대 미국의 Multi-arc이란 기업에 의해 질화물계나 탄화물계 피막 증착이 가능한 아크이온플레팅(Arc Ion Plating) 기술이 산업에 소개되어, 주로 내마모나 내구성을 요구하는 금형, 절삭공구, 산업용 부품 분야 등에 적용되면서 꾸준한 성장세를 거듭해 왔다. 최근 들어 PVD기술은 그 수요의 급증과 더불어 보다 진화된 형태의 코팅장치 및 코팅피막들이 산업에 소개 되고 있다. 먼저 절삭가공분야에는 new composition, nano composite, multi-element composition, multi-layer, SML(Self Modification Layer)등의 코팅피막들이 단독 또는 조합된 형태로 개발되어 철계 소재를 대상으로 고경도 소재의 고속가공, 저경도~중경도 소재의 중속~고속 광범위영역에서 동시 절삭을 가능케 하였고, 비철.비금속 소재 절삭용으로 종전의 가스방식의 DLC(a-C:H)코팅을 훨씬 능가하는 ta-C Plus(Ultra super DLC) 코팅이 개발되어 고 Si함량의 Al-Si계 합금, Cu-W계, 고 섬유 CFRP, CFRM 및 반소결 상태의 세라믹 소재들을 황삭에서 정삭까지 단일 공정으로 절삭이 가능한 고성능 공구들이 개발보급되고 있다. 금속 성형분야에는 고장력 강판을 냉간에서 성형 가능한 Lubricative multi-layer coating, 열간 또는 고온에서 성형이 가능한 functional multi layer과 이형성이 더한층 개선된 dimpled(or embossed) functional multi layer 코팅들이 개발되어 산업현장에 빠르게 확산되고 있다. PVD 코팅의 또 다른 주요 적용분야로 의료분야를 들 수 있는데, 이는 코팅의 대다수가 고경도의 생체친화적인 특성을 가진데 착안되었으며, 흔히 현대성 질환이라 일컫는 과민성 체질, 과체중 및 허약체질 환자의 증가와 각종 재해 및 사고의 증가 및 인간 수명 증가에 따른 인공적인 시술의 요구증가에 편승하여 이 분야의 시장 또한 가파르게 성장하고 있다. 또한 대량으로 양산 적용단계에 접어든 자동차 핵심부품들을 비롯해서 각종 산업용, 방산용 기계 부품에도 성능 향상, 내구성 향상, 환경친화성 등 다양한 목적으로 확대 적용되고 있는 사례들을 본 발표를 통해 간략하게나마 소개하고자 한다.

• Journal of the Korean Vacuum Society
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• v.16 no.3
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• pp.167-171
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• 2007

Currently, the alternative energy is one of the critical issues because of exhaustion of petroleum resources and its high cost. The solar cell is considered as the one of the promising alternative energy. And the solar cell can be classified to inorganic solar cell and organic solar cell. Although the efficiency of organic solar cell is very lower than the that of inorganic solar cell, organic solar cells have many advantages including low process cost, high transmittance, color variation, and flexibility. For these reasons, organic solar cells have the potential in low cost solar cell market that is challenging for inorganic solar cells. Recent researches of organic solar cell is concentrating on enhancement of efficiency, lifetime, and stability to order to commercially use. Working principles and the development issues of organic solar cells are discussed in this paper.

• Archives of design research
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• v.16 no.4
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• pp.215-224
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• 2003

The cruiser trip which can have various experiences in a short time is growing as the best tourism package because there is less leisure time in contrast of the increased income in 21C. in other words, as the demand of the tourist goes up, the number of ships built newly is increasing. The order of the ship keeping first and second rank in Korea has arranged a long-term strategy in order to get into the global market with the cruiser with the high value added. They also set the objective related to the cruiser design and skillful construction work. We need to observe the change and trend of the cruiser with a care at this time when the cruiser industry is launched out. In this study, the cruiser industry is divided by four periods: the spring time, the depressed time, the developing time and the peak time, on the basis of the trend of the development and the change of space structure. In addition, it was analyzed in this study that there were the various trends such as the ratio, the structure and the type of the space as well as the interior plan in the passenger's residential place The aim of this study is to present the fundamental material about the interior plan to prepare for building the domestic cruisers in a foreseeable future.

• The Journal of the Korea Contents Association
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• v.13 no.3
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• pp.318-329
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• 2013

Spatial information has influenced government policy formation, business strategy implementation, and our everyday life enormously. Digital earth enterprises providing global spatial data services emerge as spatial data industry grows rapidly. So it is highly desirable to grasp recent trends in the industry and find critical success factors (CSFs) for the digital earth firms. The purpose of this study is to compare strategies of digital earth enterprises and find CSFs for them. In addition, strategy analysis framework elaborations, systematic analysis of spatial data industry and market segmentation based on value chain are also performed to trace and cope with the volatile industry environment. Derived CSFs are as follows. First, acquisition of differentiated high quality spatial data is needed. Second, customer oriented convergent contents should be developed. Third, advanced platform functionalities must be provided to consumers. Finally, construction of efficient and effective global value chain is desirable.

• The Journal of the Korea Contents Association
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• v.17 no.11
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• pp.192-199
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• 2017

The purpose of this paper is to examine the growth trends and volatility of exports in Asia, North America, Europe, Central and South America, Middle East and Africa since 2010. And analyze the correlation and model analysis to find out future directions of development. As a result of the analysis, it showed high export share in Asia, North America, Europe, Central and South America, Middle East and Africa. Asia, North America, Europe showed a relatively high rate of increase in exports and the month-on-month rate of change was stable in Asia and North America. In order to increase our exports through this research, we should pay much attention to export improvement to Asia, North America and Europe. Especially, Asia's exports account for more than 50%, so it seems necessary to plan export enhancement to China, Japan, Vietnam, Hong Kong, Taiwan and India. Although the proportion of exports is not large yet, much attention needs to be paid to new markets in Central and South America, the Middle East and Africa. And I look forward to systematic progress in export promotion.