• Title/Summary/Keyword: technical trends

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A study for Secure the Reliability of Automated Guided Vehicle Remote Control System (무인운반차 RCS(Remote Control System)의 신뢰확보를 위한 연구)

  • Jeon, Hyong-Mo;Kang, Sang-Won
    • Journal of Digital Convergence
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    • v.15 no.5
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    • pp.207-215
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    • 2017
  • With rapid development of IT technology and biotechnology, human lifespan is extended rapidly, and we are living in the era where aging becomes the social issue. Due to this aging problem, manpower is mainly replaced by Automated Guided Vehicles (AGV) in manufacturing factories or warehouse logistics transportation. Rate of AGV use increases sharply every year. AGVs, which were used only in Smart Factories, extends its usage into indoor and outdoor operation by changing their usages to container transportation that can carry huge containers in the harbor. With the expansion of AGVs usage, the importance of RCS (Remote Control System) is also increased. In this study, we surveyed and analyzed the characteristics and technology trends of technical features of AGV's RCS that are developing in various ways to establish quality evaluation system of AGV RCS. Based on this, and by referring to international quality assessment standards, ISO/IEC 25000 series, we derived evaluation items on functional suitability and usability to secure reliability of AGV RCS. Also, it is our intention to develop evaluation model using those derived usability and reliability evaluation items.

Effect of Diet with Meat for Crossbred Pig Fed with Tangerine Peel on lipid Metabolism, Protein Level and Enzyme Activities in Rats (감귤피를 급여한 교잡종 돼지 고기가 흰쥐의 지질대사, 단백질 농도 및 효소 활성에 미치는 영향)

  • Moon Yoon-Hee;Yang Seung-Joo;Jung In-Chul;Yang Yang-Han;Koh Jin-Bog
    • Food Science of Animal Resources
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    • v.26 no.1
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    • pp.58-63
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    • 2006
  • Three different diet were made with meat for Crossbred pig ($^{\circ}_{+}$, 195 days old, $l15{\pm}5\;kg,\;Landrace{\times}Yorkshire{\times}Duroc$) and used as feed for rats after transformed into 12% protein, These diets include a pork not fed with tangerine peel during finishing period (Control, $T_0$), a pork fed with 3 and 5% tangerine peel during growing and finishing period, respectively ($T_1$), and a pork fed with 6 and 10% tangerine peel during growing and finishing period respectively($T_2$). The effects of the diet on physiological activities of rats were studied by feeding 17 weeks-old Sprague-Dawley rats with the three diets for 4 weeks. The feed intake, weight gain, feed efficiency ratio, and weight of liver, kidney, spleen and epididymal fat pad for the rats was similar among the diets. The total lipid level of liver was similar among $T_0,\;T_1\;and\;T_2$. However, it was found that $T_1\;and\;T_2$ had significantly lower triglyceride and cholesterol level than $T_0$(p<0.05). All the diet groups showed similar trends in terms of the serum total lipid, phospholipid, triglyceride, total cholesterol, HDL-cholesterol and LDL-cholesterol level, and atherogenic index, hemoglobin level, and ${\gamma}-GTP$, ALT, AST and ALP activities.

The Evaluation of Non-Ionizing Radiation (Near-Infrared Radiation) based Medical Imaging Application : Diabetes Foot (비전리 방사선 (근적외선) 기반 의료영상 활용 가능성 평가: 당뇨발)

  • Jung, Young-Jin;Shin, Cheol-Won;Ahn, Sung-Min;Hong, Jun-Yong;Ahn, Yun-Jin;Lim, Cheong-Hwan
    • Journal of radiological science and technology
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    • v.39 no.3
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    • pp.399-406
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    • 2016
  • Near-infrared radiation (NIR) is non-ionizing, non-invasive, and deep tissue penetration in biological material, thereby increasing research interests as a medical imaging technique in the world. However, the use of current near-infrared medical image is extremely limited in Korea (ROK) since it is not well known among radiologic technologists and radiological researchers. Therefore to strengthen the knowledge for NIR medical imaging is necessary so as to prepare a qualified radiological professionals to serve medical images in high-quality on the clinical sites. In this study, an overview of the features and principles of NIR imaging was demonstrated. The latest research topics and worldwide research trends were introduced for radiologic technologist to reinforce their technical skills. In particular, wound care and diabetic foot which have high feasibility for clinical translation were introduced in order to contribute to accelerating NIR research for developing the field of radiological science.

Effect of Meat Supplementation of Jeju Native Black Pigs Fed Tangerine Byproduct on Lipid Metabolism, Protein Level and Enzyme Activities in Rats (감귤 부산물을 급여한 제주 재래돼지고기의 섭취가 흰쥐의 지질대사, 단백질 농도 및 효소 활성에 미치는 영향)

  • Koh Jin-Bog;Yang Seung-Joo;Jung In-Chul;Ryon Jae-Suk;Moon Yoon-Hee
    • Food Science of Animal Resources
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    • v.26 no.2
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    • pp.175-182
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    • 2006
  • Diets consist of two different pork samples: pork of a Jeju native pig ( 260 days old, $101{\sim}103kg$ ) not fed tangerine byproduct during finishing period ($T_0$), and pork fed 8% and 15% tangerine byproduct during growing and finishing period ($T_1$), respectively. The effects of the diet on the physiological activities of rats were studied by feeding 17-week old rats with the two diets for 4 weeks. There was no significant difference between $T_0$ and $T_1$ in the rat's feed intake, feed efficiency ratio, and weight gain. Furthermore, there was no significant difference between $T_0$ and $T_1$ in the rat's weight of liver, kidney, spleen, epididymal fat pad, triglyceride and cholesterol of liver. Both $T_0$ and $T_1$ showed similar trends in terms of total lipid, phospholipid, triglyceride, total cholesterol, atherogenic index, protein, glucose, hemoglobin level, mineral level, and ${\gamma}$-GTP, ALT, AST and ALP activities. However, $T_1$ showed the trend of increasing amount of the serum's HDL and LDL cholesterol level, compared with $T_0$.

Recently Ongoing Progresses and Future Prospects of Worldwide Dairy Goat Industry (세계 산양유산업의 최근 진보 및 향후 전망)

  • Jung, Hoo-Kil;Kim, Sun-Jin;Seok, Min-Jung;Kang, Kyung-Jin;You, Young-Hyun;Yoon, Seul-Ki;Kim, Sun-Young;Jung, You-Kyung;Park, Jong-Hyun
    • Journal of Dairy Science and Biotechnology
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    • v.34 no.4
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    • pp.217-229
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    • 2016
  • Goat milk production and processing is a dynamic and growing industry that is fundamental to the health of hundreds of millions of people worldwide and is recognized as an important contributor to many national economies. Goat milk has contributed significantly to the economic and nutritional quality of life in developing countries, particularly in the Mediterranean, the Middle East, Eastern Europe, and Latin America. Goat milk has played an important role in the health and nutrition of infants and the elderly, and is also known to be beneficial and therapeutic for people with milk allergies. The potential and value of the nutritional, health, and therapeutic effects of goat milk and specialized goat milk products are now attracting attention. Various products can be made from goat milk based on its chemical properties. In addition, special products such as hair, skin care, products, and cosmetics produced using goat milk have garnered more attention in recent years. Nevertheless, high quality products can only be made from good quality goat milk. Advanced technical treatments are necessary to produce high quality goat milk that meets consumer expectation of nutritional, hygienic, and good sensory products. Good taste has been a critical criterion when deciding to buy and consume goat milk and associated products. However, it may be possible to produce more value-added products that cater to the new trends in consumer needs and thus maintain economic sustainability of goat milk industry.

An Exploratory Study on the Applicability of Thin-Film Photovoltaic Cells for Auxiliary Power Supply of a Personal Rapid Transit (PRT) Vehicle (PRT 차량의 보조 전력공급을 위한 유연소재 태양전지의 적용 가능성 연구)

  • Kang, Seok-Won;Han, Soo-Jin;Jeong, Rag-Gyo;Oh, Hyuck Keun;Ko, Sangwon;Choi, Dooho
    • Journal of the Korean Society for Railway
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    • v.17 no.2
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    • pp.94-99
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    • 2014
  • Recently, trends in new transportation system development have been primarily focused on sustainable and ecofriendly mobility solutions. The personal rapid transit (PRT) system has been considered a promising candidate in this category; its competitiveness is being improved through convergence with cutting-edge electric vehicle (EV) technologies. However, battery-powered vehicles pose difficult technical challenges in attempts to achieve reliable and efficient operation. In this study, a design approach for a solar-power assisted PRT system is presented with small-scale demonstrations aimed at circumventing challenges facing its adoption, as well as helping speed the transition to electric-powered ground transportation. From the results, it is expected that flexible photovoltaic (PV) cells will be able to supply 11% of the power required by the service equipment installed in a prototype vehicle. In particular, flexible photovoltaic (PV) cells are advantageous in terms of cost, weight, and design considerations. Most importantly, the cells' flexibility and attach-ability are expected to give them great potential for extended application in various areas.

Technical Trends of Hydrogen Production (수소생산 기술동향)

  • Ryi, Shin-Kun;Han, Jae-Yun;Kim, Chang-Hyun;Lim, Hankwon;Jung, Ho-Young
    • Clean Technology
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    • v.23 no.2
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    • pp.121-132
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    • 2017
  • The increase of greenhouse gases and the concern of global warming instigate the development and spread of renewable energy and hydrogen is considered one of the clean energy sources. Hydrogen is one of the most elements in the earth and exist in the form of fossil fuel, biomass and water. In order to use hydrogen for a clean energy source, the hydrogen production method should be eco-friendly and economic as well. There are two different hydrogen production methods: conventional thermal method using fossil fuel and renewable method using biomass and water. Steam reforming, autothermal reforming, partial oxidation, and gasification (using solid fuel) have been considered for hydrogen production from fossil fuel. When using fossil fuel, carbon dioxide should be separated from hydrogen and captured to be accepted as a clean energy. The amount of hydrogen from biomass is insignificant. In order to occupy noticeable portion in hydrogen industries, biomass conversion, especially, biological method should be sufficiently improved in a process efficiency and a microorganism cultivation. Electrolysis is a mature technology and hydrogen from water is considered the most eco-friendly method in terms of clean energy when the electric power is from renewable sources such as photovoltaic cell, solar heat, and wind power etc.

CM Prospects and Strategies Based on Contract Statistics : 1997 through 2014 (CM산업 수주실적 분석을 통한 CM기업의 발전 방안 - 1997년 ~ 2014년 실적자료 기반 -)

  • Ha, Jiwon;Jung, Youngsoo
    • Korean Journal of Construction Engineering and Management
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    • v.17 no.5
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    • pp.97-107
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    • 2016
  • CM services have been focused on the advancement of the CM industry and expansion to overseas market based on CM capabilities. However, there has been lack of quantitative and comprehensive research to investigate current CM trends and prospects for improving competitiveness. In this sense, the purpose of this study is to statistically analyze total of 3,453 CM service contracts over the past 18 years (between 1997 and 2014) in term of market type, contract size, owner's type, commodity type. Finding of this research reveal that 1) compared to 2005, CM market size in 2015 increased as much as 2.5 times, and that 2) domestic CM projects count for 87.5%, architectural project 88.4%, less than 1 billion won small contracts 75%, respectively. Also, recently as CM company are developing capability and competitiveness, 1) overseas CM market share has grown up to 20% among total CM contract amount, and 2) CM contracts by private owners has increased 3 times demanding the total management services based on high technical capability. Additionally, the result of this paper supports the growth path model proposed by Jung et al. (2014), where a path from Domestic Public (DP3) and Domestic Private (DC2) CM projects towards the expansion to International Private (IC5) contracts was quantitatively analyzed. Implications for other practical issues are also briefly discussed.

A Case Study on Implementation of the Shipping Market Information Service System (해운시황정보서비스시스템 구현 사례연구)

  • Lee, Seokyong;Jeong, Myounghwan
    • Journal of Korea Port Economic Association
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    • v.29 no.3
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    • pp.73-94
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    • 2013
  • The necessity of shipping market information services has been on the rise which emphasizes the relevance of transaction information and market information to parties both in and outside the shipping industry. However, previous related researches have been restricted to explorations limited by the offerings of existing shipping market information providers. Users today require effective information, an efficient contents management system, interfacing to help the information provider, graphing and spread sheets to facilitate and present the analyzed information through diverse formats, and reliable web and mobile services to provide information effectively with limited human resources. As a first step, service information has to be defined, so that it takes into account user utility, information retrieval and data development. Second, benchmark information and services must be provided from leading shipbrokers and research institutes. Third, a review of the latest technical trends is required to identify the most suitable technologies for servicing shipping market information. Finally, analysis is required on the implementation of a system with selected technologies, as well as the development of channels to post information which have been analyzed by users. Such a process would enable the continual redefinition of the shipping market information users actively need. The application of an X-Internet based WCMS, with a single-window dashboard providing user-customized information, and used to obtain and manage processes, add spread sheets to sustain calculations using the latest information, graph results, and to input additional information following predefined rules. Access to data and use of the system would require agreement that the system will incorporate user data and user-analyzed information into the market report, web portal, and hybrid app to provide current shipping market information appropriately and accurately to service users.

Art Mask Converged Design Based on an Expression Method of Cubism (입체주의 표현기법을 활용한 아트 마스크 융합 디자인)

  • Park, Li-La
    • Journal of the Korea Convergence Society
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    • v.8 no.4
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    • pp.273-278
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    • 2017
  • Contemporary art make-up is being widely developed in line with the trends of individualization and differentiation departing from basic desires or logical thinking about the desires of human beings who ultimately pursue beauty and experiencing diversified convergence and integration befitting customer needs. Cubism that has been playing a central role at the center of art history in the $20^{th}$ century can act as a good material based on creativity with regard to expression of the art make-up. In this regard, the study was focused on creating new concepts of design and novel areas of expression by combining expressive methods of cubism with art make-up to suggest an art mask. As for a method of the study, cubism and art make-up were examined based on preceding studies, Internet data and technical books, and the expression method of cubism was divided into plural points of view, partition of shape and collage and motivated the works of Picasso for the purpose of art mask-converged design. As a result of the study, it was found out that the expression method of cubism was applicable to the art make-up, and creative art make-up converged design could be generated to make a suggestion. In this regard, it is hoped that further studies will be facilitated and that this study can be instrumental in developing art make-up design.