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Preparation and Physicochemical Characteristics of Anchovy Hydrolysates Produced by High Hydrostatic Pressure and Enzymatic Hydrolysis Treatment (고압/효소분해 처리에 의한 멸치 가수분해물의 제조 및 특성분석)

  • Kim, Min-Ji;NahmGung, Bae;Kim, Bok-Nam;Lee, Soo-Jeong;Kim, Chul-Jin;Cho, Yong-Jin;Kim, Chong-Tai
    • Food Engineering Progress
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    • v.13 no.2
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    • pp.85-91
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    • 2009
  • High hydrostatic pressure and enzymatic hydrolysis (HPEH) was applied to anchovy in order to produce a natural seasoning ingredient. Total soluble solid, amino nitrogen, total nitrogen and the degree of hydrolysis of anchovy hydrolysates were investigated depending on the process parameters such as temperature, pressure, enzyme concentration and enzyme type. The optimal condition for anchovy hydrolysis was confirmed as temperature 50$^{\circ}C$, reaction time 24 hrs, pressure 50 MPa and enzyme concentration 0.6% in HPEH treatment. HPEH treatment showed more effective in overall properties of anchovy hydrolysis than those of control. All anchovy hydrolysates produced by HPEH treatment were increased more 1.5-2.6 times of total free amino acid than that of control. From these results, the HPEH treatment appears to be an effective and economic process to produce a natural seasoning ingredients.

A Case Study on the Competitive System of EU Railway Transport Market (유럽 철도교통시장의 경쟁체제 도입사례 연구)

  • Lee, Yong-Sang;Moon, Dae-Seop
    • Journal of the Korean Society for Railway
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    • v.11 no.5
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    • pp.455-464
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    • 2008
  • This paper examines the situation and tasks of competitive systems of EU transport market focusing on railways. Recently, the EU transport market has changed radically, thanks to an increasingly competitive rail market. The European Commission has stimulated the creation of a competitive environment that will enhance the position of rail. Some scholars have insisted that the rail market is more monopolistic than competitive. However, the case of UK rail privatization suggests this is not the case. Moreover, some countries have a rail market that is more competitive. We draw on a wide range of sources including statistics and analyses of recent phenomena. These demonstrate the emergence of competitive markets in EU rail and the difficulty of developing a competitive market. With regard to the adoption of the competitive market, we examine three things. First, we observe recent cases and trends in competitive markets. Second, we compare the result of competitive markets and non-competitive markets within EU nations. Third, we demonstrate factors of formation of competitive markets and the possible expansion. We identified differences within open market policies amongst EU nations. Although a competitive EU rail market may have some difficulties, it will steadily begin to overcome technological differences and a lack of funds, because EU countries have a common goal, which is to develop the railways, solving, wherever possible both environmental and energy problems. Through this analysis, we found that the free market in EU rail will be extended to deliver efficiency and quality service.

Effects of Drying Methods on the Quality and Physiological Activities of Blueberry(Vaccinium ashei) (건조방법에 따른 블루베리의 품질 및 생리활성)

  • Park, Sung-Jin;Choi, Young-Bum;Ko, Jung-Rim;Rha, Young-Ah;Lee, Hyeon-Yong
    • Culinary science and hospitality research
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    • v.20 no.1
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    • pp.55-64
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    • 2014
  • This study was performed to determine the effects of drying methods on the quality and physiological activities of blueberry. Blueberries(Vaccinium ashei) were dried by hot-air ($60^{\circ}C$), cyclic low pressure ($50^{\circ}C$), and freeze drying methods. They contained high properties of carbohydrates(68.48~80.00%), crude protein(1.63~5.41%), crude fat(0.58~1.25%), and ash(0.71~1.11%) regardless of the drying methods. There were no differences in pH according to the drying methods. Browning index increased as the drying temperature increased. The L, a values of the freeze-dried sample were higher than those of the other dried samples, whereas the b value of the cyclic low pressure dried sample was higher than that of the other samples. The free sugar contents of the hot-air sample were higher than those of the other samples. Vitamin C content of the freeze dried sample was higher than that of either the hot-air or cyclic low pressure dried sample. The contents of total polyphenols and anthocyanins were higher in the freeze dried sample. The DPPH radical scavenging activity of freeze drying sample was higher than that of either the hot-air or cyclic low pressure dried sample. The result indicated that there were no differences in product quality depending on the freeze-drying and cyclic low pressure drying methods.

A New Early Maturing, Lodging Resistance and High Yielding Vegetable Peanut "Seonan" (조숙 내도복 다수성 풋땅콩 품종 "선안")

  • Pae, Suk-Bok;Park, Chang-Hwan;Cheong, Young-Keun;Hwang, Chung-Dong;Lee, Myung-Hee;Shim, Kang-Bo;Jung, Chan-Sik;Kang, Churl-Whan;Park, Keum-Yong;Park, Chung-Berm;Choi, Gyu-Hwan;Lee, Jae-Chul;Kim, In-Jae;Kim, Sun-Lim;Kim, Je-Gyu
    • Korean Journal of Breeding Science
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    • v.40 no.2
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    • pp.178-183
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    • 2008
  • A new peanut variety "Seonan" (Arachis hypogaea ssp. hypogaea L.) was developed at the Yeongnam Agricultural Research Institute, NICS, in Milyang in 2007. It was developed from the cross between the erect short stem cultivar "SP9128" and the high-yielding cultivar "Daekwang". "Seanan" which is Virginia plant type has 18 branch number per plant with early maturing and long-ellipse shaped large kernel. Each pod has two grains with brown testa and 100 seed weight was 87 g in the regional yield trials (RYT). Especially this variety has resistance to lodging owing to short stem. The free sugar and tannin content of fresh peanut are 3.7% and 0.48%, respectively, similar to check variety. In the regional yield trials "Seonan" was outyielded than check variety by 14% with 8.59 MT/ha for fresh pod and by 7% with 3.75 MT/ha for grain.

A New Red Testa and High Quality Vegetable Peanut Cultivar, "Charmwon" (자색종피 고품질 다수성 풋땅콩 "참원")

  • Pae, Suk-Bok;Cheong, Young-Keun;Jung, Chan-Sik;Lee, Myung-Hee;Hwang, Chung-Dong;Lee, Yu-Young;Oh, Se-Kwan;Kim, Jung-Tae;Park, Keum-Yong;Kim, Wook-Han;Choi, Gyu-Hwan;Lee, Jae-Chul;Jeong, Byung-Joon;Kim, Ho-Young
    • Korean Journal of Breeding Science
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    • v.40 no.1
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    • pp.58-62
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    • 2008
  • A new vegetable peanut cultivar "Charmwon" (Arachis hypogaea ssp. fastigiata.L.) was developed at the Yeongnam Agricultural Research Institute, NICS, in Milyang 2006. It was developed from the cross between the disease resistant cultivar "HYQ(CG)S-10" and the high-yielding cultivar "Sinkwang". "Charmwon" which has been classified as Shinpung plant type is less branch number with early flowering and ellipse-shaped large kernel. Each pod which showed very shallow constriction had two grains with red testa and 100 seed weight was 90g in the regional yield trials (RYT). This variety also showed higher free sugar and protein contents in seed quality, and had more resistant to early and late leaf spot diseases compared with check one. In the regional yield trials "Charmwon" was out-yielded than check variety by 18% with 8.93 ton/ha for fresh pod and by 4% with 3.95 ton/ha for grain.

A Study on Idol Marketing Strategies Using Web Entertainment - Focusing on - (웹 예능을 활용한 아이돌 마케팅 전략 연구 - <달려라 방탄>을 중심으로)

  • Lee, Shuo-Kun;Huh, Eun-Jin
    • Journal of Korea Entertainment Industry Association
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    • v.15 no.2
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    • pp.99-109
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    • 2021
  • The purpose of this paper is to look at web entertainment in terms of marketing and analyze how consumers in Korea and abroad feel about it. To this end, methods such as literature research, case studies, and consumer interviews were used. The main conclusions of this paper are as follows. First of all, through the case of "Run BTS," the web entertainment program actively reflects the needs of viewers on entertainment content by utilizing the unique interactions of web entertainment in terms of products. In terms of price, web entertainment operated a paid service that contained more diverse contents. However, the degree of satisfaction with paid services was different for each age group or income of viewers. In terms of distribution, web entertainment can position viewers much more clearly than conventional TV entertainment, has strong communication with viewers, and is relatively free from political conflict or censorship in overseas exports. Finally, in terms of public relations, web entertainment is promoted in various ways to fans who are the mainstay of existing viewers, but public relations for various viewers other than fans are relatively weak. Based on the above analysis, this paper proposed ways to improve consumers of web entertainment by region, customized marketing by age, professional window for consumers to directly express their opinions on content, and wide promotion through various media.

Proposal on Active Self Charging and Operation of Autonomous Vehicle Using Solar Energy (태양광을 이용한 자율주행 자동차의 능동적 자가 충전 및 운행 제안)

  • Hur, Hyun-Woo
    • The Journal of the Korea Contents Association
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    • v.22 no.9
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    • pp.85-94
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    • 2022
  • In modern society, environmental and energy problems have caused to replace cars with environment friendly energy. Vehicles with internal combustion engine which use petroleum are one of the factors that influence global pollution due to environment problems such as fine dust and ozone layer destruction. In addition use of energies for automobile making resources to become depleted. To solve this limited oil energy problem by using other energy sources. To the problem using electric energy and green energy as alternative for a solution. Among environment friendly energies this paper studies the possibility of drive service for autonomous vehicles that self-charges using only solar energy and whether they can be used as pollution free and alternative energy for automobiles. Studies was researched based on published literature review, data from ministry of transportation and automobile companies. Also case of electric vehicle and prototype automobile using only solar energy and the theory of near future technologies. Many automakers are using electric cars as alternative energy. Also making efforts to use solar energy as an substitute energy source and as a way to supplement electricity. Results show that there is a potential on operating autonomous vehicle using only solar energy. Furthermore, it will be possible to use automobiles actively, also use and supply solar energy. This paper suggest the possibility of contributing to the future of the automotive industry.

Hot Corrosion and Thermally Grown Oxide Formation on the Coating of Used IN738LC Gas Turbine Blade (사용된 IN738LC 가스 터빈 블레이드 코팅층의 고온 부식 및 Thermally Grown Oxide 형성 거동)

  • Choe, Byung Hak;Han, Sung Hee;Kim, Dae Hyun;Ahn, Jong Kee;Lee, Jae Hyun;Choi, Kwang Su
    • Korean Journal of Materials Research
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    • v.32 no.4
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    • pp.200-209
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    • 2022
  • In this study, defects generated in the YSZ coating layer of the IN738LC turbine blade are investigated using an optical microscope and SEM/EDS. The blade YSZ coating layer is composed of a Y-Zr component top coat layer and a Co component bond coat layer. A large amount of Cr/Ni component that diffused from the base is also measured in the bond coat. The blade hot corrosion is concentrated on the surface of the concave part, accompanied by separation of the coating layer due to the concentration of combustion gas collisions here. In the top coating layer of the blade, cracks occur in the vertical and horizontal directions, along with pits in the top coating layer. Combustion gas components such as Na and S are contained inside the pits and cracks, so it is considered that the pits/cracks are caused by the corrosion of the combustion gases. Also, a thermally grown oxide (TGO) layer of several ㎛ thick composed of Al oxide is observed between the top coat and the bond coat, and a similar inner TGO with a thickness of several ㎛ is also observed between the bond coat and the matrix. A PFZ (precipitate free zone) deficient in γ' (Ni3Al) forms as a band around the TGO, in which the Al component is integrated. Although TGO can resist high temperature corrosion of the top coat, it should also be considered that if its shape is irregular and contains pore defects, it may degrade the blade high temperature creep properties. Compositional and microstructural analysis results for high-temperature corrosion and TGO defects in the blade coating layer used at high temperatures are expected to be applied to sound YSZ coating and blade design technology.

Crisis in Venezuela, Solitude of Latin America, the Old Future (베네수엘라 위기와 라틴아메리카의 고독 그 오래된 미래)

  • Choi, Myoung-Ho
    • Iberoamérica
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    • v.21 no.2
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    • pp.83-114
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    • 2019
  • Now Venezuela is the most attentional country in Latin America not only in our country but also all world. Unfortunately, the current crisis is a danger that threatening the venezuelan people's right to live, so most of the news is negative. Some analysts in Korea insist that everything is the result of invasion by US imperialism, others say it is a state of default due to excessive populism. The others also described as a power game of the powers of the world by the new Cold War. But most essential thing is that Sovereign of Venezuela, Venezuelan people are marginalized in this process. Venezuela's crisis seems to have been both a combination of internal and external factors, but internal factors been a main cause. The internal factors are the dictatorship and corruption of crony capitalism of nepotism which are considered historical ailments in Latin America. Chávez criticized the oligarchy, but paradoxically, the Chávezian or current ruling forces became another oligarchy. Unfortunately, Western powers such as the United States and the EU and Venezuela's current ruling powers are at an extreme confrontation, so can be seen using cliff-edge tactics. The best solution is the free and peaceful reelection of the president. After the patriarchal winter, which spring will come the Venezuelan people must decide.

A Study on Smart City Project Evaluation System: Focusing on Case Analysis of IFEZ Smart City (스마트시티 프로젝트 평가체계에 대한 연구: IFEZ 스마트시티 사례분석을 중심으로)

  • Sang-Ho Lee;Hee-Yeon Jo;Yun-Hong Min
    • The Journal of Bigdata
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    • v.8 no.1
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    • pp.83-97
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    • 2023
  • Project evaluation is the process of evaluating the progress and results of a project. Smart city projects can be divided into system components (infrastructure, services, platforms), or projects can run simultaneously for multiple services. In addition, services are developed and expanded through additional projects. In order to ensure that the smart city, which is composed of various projects, proceeds in accordance with the goals and strategies, periodic project evaluation is required during the project implementation process. The smart city project evaluation system proposed in this paper is designed to provide comprehensive and objective indicators by reflecting various factors that must be considered for projects occurring in all stages of planning, design, construction, and operation of smart cities. The indicators derived from the evaluation system can be used by decision makers to determine the direction of smart city project development. In addition, it is designed so that the performance of the project can be evaluated interim before the end of the project and the feedback obtained from it can be reflected. To introduce the application method of the smart city project evaluation system proposed in this study, the evaluation system developed in this study was applied to the smart city project case of Incheon Free Economic Zone (IFEZ). Based on the evaluation results, items that can maximize the improvement effect of each smart city project item were presented, and the direction of smart city project implementation was suggested. By utilizing a smart city project evaluation system that reflects the characteristics of smart city projects that are composed of multiple projects, comprehensive planning and management of smart city projects will be possible, and this study will serve as a reference for identifying priority improvement factors for projects.