• Title/Summary/Keyword: Small-Scale Development

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Development of Small Scale Commercial Plant of Rotary Kiln Type for Pyrolysis of Waste Plastic (소규모 로터리 킬른형 폐플라스틱 유화 상용 장치 개발 현황)

  • Lee, Kyong-Hwan;Liu, The Ming
    • 한국신재생에너지학회:학술대회논문집
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    • 2008.10a
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    • pp.142-144
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    • 2008
  • 본 논문은 정부의 연구 지원에 의해 참여기업인 (주)동명알피에프에 설치되고 있는 상용인 반연속식 로터리 킬른형 유화 장치 개발 현황에 대해 논하고자 한다. 본 공정의 특징은 지자체에서 수거된 EPR 종말품을 대상 원료로 하였고, 2기의 병렬로 설치된 킬른형 반응기를 사용하여 주기적 처리에 의해 효율적인 동시에,처리량을 크게 향상시켰다.이 반응 시스템은 용융 및 열분해가 동시에 이루어짐에 따라 공정은 단순하지만 생성 오일의 질이 저하되어 후단에 오일 고급화 공정과 정제 공정이 설치되어 최종 제품의 질을 향상시켰다.이에 대한 전반적인 현황과 공정 기술에 대해 언급되었다.

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New Approach Directions for the Raise International Competitiveness of Basic Food Crops in Korea (기초식량작물의 경쟁력제고를 위한 새로운 접근방향;쌀, 보리, 콩을 중심으로)

  • Lee, Sang-Ha
    • Journal of Agricultural Extension & Community Development
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    • v.3 no.1
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    • pp.55-66
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    • 1996
  • Agricultural products are inferior in their competitiveness in the world market mainly due to die high production cost which could be attributed to the rising land and labor cost in Korea. The small scale farming system with the lower production infra structure requires relatively intensive input labor for the reduction of production cost of agricultural products and impediment in the mechanization of farming systems. There are limitations in the cultivation techniques that seek out other directions for the raising competitiveness in the world market of basic food crops. Future goals to raise competitiveness of basic food crops in Korea should include the following: 1. Fostering of the farmers organization by crop items. 2. Agribusiness should integrate management with priority given to farmers. 3. Raise competitiveness to find out the system of obtaining on from the consumers.

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Development of electric surgical machine by LC series resonance (LC 직렬공진에 의한 전기 수술기 개발)

  • Lee, Oh-Keol;Kim, Tae-Woo;Song, Ho-Shin
    • Proceedings of the KIEE Conference
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    • 2002.06a
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    • pp.153-157
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    • 2002
  • Electricity living body formation operation appliance is using most imports until present. And, because electricity living body formation operation appliance is too expensive, it becomes burden to buy in small scale hospital. Also, problem that economical damage by income is added follows, Therefore, this treatise developed electricity living body formation operation appliance by home production, Ultra high frequency eruption circuit used LC circuit, and output frequency is possible to 8 [MHz], and output voltage amplified maximum 800 [V]. This operation appliance could display size of fixed current. This developed product could microscopic operation fewer than 1 [mm]. This development technology is considered by do metallic surface heat treatment, melting, welding, induction heating device and that can apply to domestic animals surgical operation and so on.

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Development of skin surgical machine by series resonance method (직렬공진에 의한 피부 수술기 개발)

  • Lee, Oh-Keol;Kim, Sang-Ju
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • 2002.05a
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    • pp.127-132
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    • 2002
  • Electricity living body formation operation appliance is using most imports until present. And, because electricity living body formation operation appliance is too expensive, it becomes burden to buy in small scale hospital. Also, problem that economical damage by income is added follows. Therefore, this treatise developed electricity living body formation operation appliance by home production. Ultra high frequency eruption circuit used LC circuit. and output frequency is possible to 8 [MHz], and output voltage amplified maximum 800 [V]. This operation appliance could display size of fixed current. This developed product could microscopic operation fewer than 1 [mm]. This development technology is considered by do metallic surface heat treatment, melting, welding, induction heating device and that can apply to domestic animals surgical operation and so on.

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Analysis of Water Cycle Effect according to Application of LID Techniques (LID 기법 적용에 따른 물순환 효과분석)

  • Lee, Jungmin;Lee, Yun;Choi, Jongsoo
    • Journal of Wetlands Research
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    • v.16 no.3
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    • pp.411-421
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    • 2014
  • At present, the development in rainwater management approach is still insufficient due to the numerous adverse effects of urbanization. Storm water management is being developed to restore the natural state of water cycle undergoing several processes which were hindered such as infiltration and evapotranspiration. Low Impact Development (LID) was established in order to reduce the negative effects of urbanization to our environment. These developments can be used to respond to the effects of climate change such as heat island phenomenon. The effects of the development of new town in the district plan with application of LID facilities were studied and reported. Typically, LID facilities were applied in small scale development and were rarely used in large-scale development. Most of studies, however, did not assessment the effects of large-scale development projects with LID application to the natural water cycle. This study was conducted to simulate the urban hydrologic cycle simulation on Asan-Tangjeong in Korea. This study may be used in urban hydrologic cycle simulation and establishment of an urban water management plan in the future. Lastly, this study generated a model using the recently updated SWMM5 which determined the hydrologic cycle simulation after installation of LID facilities.

Multifunctional services and space composition in small elderly care facilities - Analysis of pioneering care facilities in Japan (takurosho) - (소규모 고령자 복지시설에서의 서비스 다기능화와 공간구성 - 일본의 선진사례 택로소를 중심으로 -)

  • Kim, Sung-Ryong;Takemiya, Kenji
    • Journal of the Korean Institute of Rural Architecture
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    • v.18 no.3
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    • pp.9-16
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    • 2016
  • This study aimed to clarify the multifunctional services and space composition in the process of developing a multifunctional long-term care program in small elderly care facilities in Japan. We collected data about multifunctional long-term care at small facilities from the Community Life Support Center (CLC), a Japanese non-profit corporation, and conducted an interview survey of the members of the CLC's secretariat in 2014. Furthermore, we selected 3 Japanese pioneering care facilities (known as takurosho), and conducted interview surveys and data collection to clarify in detail the space composition and process of development of multifunctional long-term care at small facilities. Four distinct results were found. First, the facilities had gradually increased non-institutional services, including visitation, overnight stays, and long-term stays, to fit the needs of users and their families. Secondly, in the 1990s, they could offer both non-institutional and institutional services at the same facility, but after the long-term care insurance system began in 2000, non-institutional long-term stay services were not allowed. Third, the facilities had built extensions or extra rooms in response to increases in multifunctional services and users. These rooms had common characteristics, with sitting rooms at the center of the facility. Lastly, the maximum number of service users at each of the 3 facilities was limited to 15, to maintain a small scale. However, as the size of facilities was increased through building extensions or remodeling, the overall amount of area available to users increased.

Characterization of Grapevine leafroll-assoiated virus 1 and Grapevine leafroll-associated virus 3 isolated from Vitaceae in Korea.

  • Kim, Hyun-Ran;Lee, Sin-Ho;Kim, Jae-Hyun;Yoon, Gum-Ook;Kim, Jeong-Soo
    • Proceedings of the Korean Society of Plant Pathology Conference
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    • 2003.10a
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    • pp.138.2-139
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    • 2003
  • Grapevine leafroll-associated 1 virus (GLRaV-1) and Grapevine leafroll-associated 3 virus (GLRaV-3), member of the genus Ampelovirus, are important viral disease of grapevine in the world. these viruses transmitted only dicotyledonous host by vectors such as mealybugs and there is no suitable herbaceous host for virus. The diseased leaves turn yellowish or reddish depending on cultivars and viruses. Viruses are existed at low concentration and ununiformly distribution in grapevine. Using small-scale double-stranded RNA (dsRNA) extraction method, reverse transcription and polymerase chain reaction (RT-PCR) product of 1Kb long which encoded of coat protein (CP) gene for both viruses was successfully amplified with a specific primers. The RT-PCR product was cloned into the plasmid vector and its nucleotide sequences were determined from selected recombinant cDNA clones. Sequence analysis revealed that the CP of GLRaV-1 consisted of 969 nucleotide, which encoded 323 amino acid residues and CP of GLRaV-3 consisted of 942 nucleotide, which encoded 314 amino acid residues. The CP of GLRaV-1 and GLRaV-3 has 93.8% and 98.7% amino acid sequence identities, respectively.

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A Study on the Improvement Directions and Case Analysis of Rural Tourism Development in Fiji (피지(Fiji)의 농촌관광개발 사례분석 및 개선방안 연구)

  • Hwang, Hancheol
    • Journal of Korean Society of Rural Planning
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    • v.22 no.4
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    • pp.13-24
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    • 2016
  • Tourism is often considered as one of the main industries to promote development and modernization in small South Pacific islands countries. In Fiji, this was recognized in the 1960s, and resulted in large-scale resort based tourism development in coastal areas. While tourism has obvious advantages to the economy, a lot of problems such as exclusive foreign control of the main hotels and resorts, considerable overseas leakage of earnings, the limited participation by indigenous resource owners, and localized environmental damages to reefs and mangroves are emerging. For sustainable tourism development, it is needed to set growth objectives and targets for tourism in terms of benefits to Fiji, and to concentrate support on 'Rural Tourism' such as community-based tourism that have lower leakage and put more into local economies. Through case study in this paper, to develop rural tourism at the local level, several recommendations are as follows: 1) to introduce various rural tourism programs such as experiencing Fiji's traditional culture, participating in activities, picking fruits and harvesting agro-products, 2) to enhance aggressive promotion and marketing strategies, 3) to build the capacity of local communities for improving the quality of tourism services, and 4) to provide the infrastructure for tourism business such as road accessing, water supply and disaster prevention.

A Study on the Damage Reduction Strategy Against a Harmful Aquatic Organism, Jellyfish's Bloom (유해 해양생물 해파리 피해 저감 방안 연구)

  • Park, Seongwook;Lee, Kyounghoon;Yoon, Won-Duk;Lee, Dong-Gil;Kim, Seonghun;Yang, Yong-Su;Lee, Geon-Ho
    • Journal of Fisheries and Marine Sciences Education
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    • v.27 no.1
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    • pp.49-62
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    • 2015
  • As methods reducing damages by jellyfish which enter the coastal areas of Korea, attaching cutting devices to towing nets of otter trawls or pair trawls and/or using a canvas type of cutting nets of small fishing boats have been widely utilized. In order to reduce shut-down damages of power plants in coastal areas due to the mass influx of marine organisms including jellyfish, a possible improvement of the traveling water screen system and various jellyfish influx blocking devices were suggested in this study. The results could be utilized as an important index for reducing damages by jellyfish bloom which cause on a massive scale in summer in Korea.

An Analysis of Food Purchase Accessibility and Availability for Rural Households : The Cases of Bibong-myeon and Maesong-myeon, Hwaseong-si (농촌지역 가구의 식료품 구매 접근성과 이용가능성 분석 - 화성시 비봉면과 매송면을 중심으로 -)

  • Lee, Chang-Hyun;Lee, Sang-Eun;Jang, Mi-Jin;Choe, Jeong-Sook;Park, Young-Hee;Kim, Young
    • The Korean Journal of Community Living Science
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    • v.25 no.4
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    • pp.581-600
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    • 2014
  • This study examines the relationship between food purchase accessibility for 86 homemakers and that for 42 grocery stores. The Study area included Bibong-myeon and Maesong-myeon, Hwaseong-si, Gyeonggi-do, to represent a rural area. The analysis classified three regions (residence, outside of residence, and other areas) and seven types of grocery stores (LDS, CS, NCS, CC, NCC, TM, and other). The expansion of the area range increased the availability of food items and the accessibility of large-scale grocery stores as well as those for food procurement. The respondents had difficulty preparing family meals and buying food items because of a lack of food item variety and the small scale of grocery stores. In particular, fresh meat, fruits, and fish were difficult to purchase, causing some nutritional imbalance. These results suggest a need to develop meal composition samples and programs that can actively encourage the intake of meat and fish products with a diet based in self-produced vegetables for better dietary behaviors.