• 제목/요약/키워드: Farm produce

검색결과 206건 처리시간 0.021초

해양 조류발전단지 간섭 연구 (Ocean Current Power Farm Interaction Study)

  • 조철희;임진영;채광수;박노식
    • 한국해양공학회지
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    • 제23권1호
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    • pp.109-113
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    • 2009
  • Several tidal current power plants are being planned and constructed in Korea utilizing the strong tidal currents along the west and south coasts. A tidal current reaches 9.7 m on the west coast; there are few potential regions for tidal current power generation. The construction of a dam to store water can prevent the circulation of water, causing a great environmental impact on the coast and estuary. The tidal barrage could produce a large amount of power, but it should be carefully considered. The purpose of developing renewable energies is to minimize the environmental impact and to maximize the utilization of clean energy. To produce a great quantity of power, tidal current farms require the placement of numerous units in the ocean. The power generation is very dependent on the size of the rotor and the incoming flow velocity. Also, the interactions between devices contribute greatly to the production of power. The efficiency of a power farm is estimated to determine the production rate. This paper introduces 3 D interaction problems between rotating rotors, considering the axial, transverse, and diagonal distances between horizontal axis tidal current devices.

녹색관광 자원유형분석 및 국내 적용가능성 연구 (A Study on the Resources Analysis and Applicability for Green Tourism Development)

  • 윤희정;임승빈
    • 한국조경학회지
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    • 제32권4호
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    • pp.49-58
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    • 2004
  • This study is aimed to define and classify GREEN TOURISM (GT) resources as the basis for rural sustainable development, and to analyze the current conditions of GT and applicable resources in Korea. For these purposes, a field survey about 24 rural villages in Japan and Korea is applied, accompanied by a questionnaire survey of 30 specialists, as well as a literature review. The results of this study are summarized as follows. The concept of GT has 3 important points: interchange between rural and urban residents, staying in villages, and residents' participation. GT resource are divided into 4 types: Agricultural, Ecological, Historical and Living resources in a space and activity program. In addition, the GT resources in Japan are more quantitatively abundant than in Korea, but Korean agricultural and ecological resources were more abundant relatively. According to the several methods above, 18 space and 14 activity programs were classified. Lastly, this study analyzed the applicable 32 Korean resources using the specialists' questionnaire survey. Among the space resources, ecological landscape, farm produce, farm-land, water, and historical landscape have higher applicability, but the applicability of sports, event, commemoration, and divine space are lower. Among the activity programs, farm produce, animal, plant, food&beverage, and living appliance have higher applicability.

풍력발전에 적합한 기본풍속 연구 (Study on Basic Wind Speed Suiteable for Wind Power Development)

  • 김정환;정호성;김형준;한정헌;박선규;최진웅
    • 한국신재생에너지학회:학술대회논문집
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    • 한국신재생에너지학회 2010년도 추계학술대회 초록집
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    • pp.189.1-189.1
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    • 2010
  • The wind farm where the wind velocity condition is excellent and economical can be established to produce power with the multiple wind power turbine. The wind velocity which is suitable to Wind Power Development must be evaluated for searching the economical wind farm on planning the wind farm. In this paper, based on wind speed data at 24 locations in Korea from 1971 through 2009, the basic wind velocity which can be applied to designing wind power development is estimated using the statiscal process. The wind velocity which is measured from observation stations is revised according to wind gauge's height and Circumferential environment. The wind speeds for 200 year's return period in 24 locations are determined using the Gumbel's distribution.

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친환경유기농산물 소비촉진을 위한 마케팅 전략 (Marketing Strategies for Promotion Policy of Environmentally Friendly Farm and Organic Products)

  • 유덕기
    • 한국유기농업학회지
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    • 제16권4호
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    • pp.391-408
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    • 2008
  • The overall focus of this study was to identify marketing and promotion strategies that can maintain and enhance environmentally friendly farm and organic production and processing activities. This is particularly important as the volume of environmentally friendly farm and organic produce that is generally available is increasing, and significant players, such as Organic Marketing Initiatives(OMI) and conventional marketing co-operatives, are becoming involved in the market. The rapid increase in production of environmentally friendly farm products and organic food is creating new and more complex challenges for marketing, from vegetable box schemes large co-operatives supplying the precise quality and volume required by supermarkets. A possible strategy for many farmers is to co-operate in regionally or nationally operating marketing initiatives. The main objective of any public relations(PR) activity should to enhance publicity and to improve an OMIs image. No promotion, no perception of OMI performance.

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농산물 유통단계 축소에 관한 연구 -농산물 물류센터를 중심으로-

  • 주우진;조규식
    • 한국유통학회지:유통연구
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    • 제1권2호
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    • pp.173-198
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    • 1996
  • Distribution of farm produce in Korea is known to be inefficient due to the numerous stages that exist in the distribution channel. This has resulted in dissatisfaction for both farmer and consuers; farmers sell their produce at low prices to middlemen while consumers pay high prices for them because of price increases that occur in the distribution chain. We apply Spengler's theory of double marginalization to show that price increases are inevitable as the length of the farm distribution chain increases. We then show that the negative effects of double marginalization can be contained by setting up a physical distribution center. The physical distribution center effectively reduces the stages in the distribution from 5 or 6 stages to 3 or 4 stages. We also lay out the design and major characteristics of the distribution center, as well as the expected cost savings.

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네덜란드 지속 낙농 모델 De Marke (De Marke, Dutch Model for Sustainable Dairy Farming)

  • 함준상;최용수
    • Journal of Dairy Science and Biotechnology
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    • 제32권2호
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    • pp.71-76
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    • 2014
  • The Netherlands produce more than 11 million tonnes of milk per year, and approximately 60% of the milk is exported. Dutch milk production is five times higher than that of Korea, even though Korea comprises a land area three times greater than the Netherlands. Upscaling and intensification have characterized the Dutch way of dairy farming since 1960, and adverse effects of the intensification of dairy farming became evident from the late 1970s and early 1980s onwards. The transition toward a more sustainable farming system is a central element of the Dutch agenda for the reconstruction of the livestock production sector. The environmental problems in Dutch dairy farming in the 1980s have led to the establishment of the experimental dairy farm "De Marke" which aims at improving the utilization of fertilizers and feeds, through minimizing nutrient requirements, maximizing the use of nutrients in organic manure and homegrown feeds, and through the targeted use of fertilizers and feeds. 85 cows at "De Marke" produce 720 tonnes of milk per year, using 55 ha of pasture in a sustainable manner. That means, 150,000 ha of pasture are required to produce 2 million tonnes of milk, which the current milk production of Korea. It is urgent to provide sufficient pasture for sustainable milk production in Korea, and primarily the transition to pasture of surplus rice paddies, resulting from of a decrease in rice consumption, should be considered.

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Characteristics of Gene Structure of Bovine Ghrelin and Influence of Aging on Plasma Ghrelin

  • Kita, K.;Harada, K.;Nagao, K.;Yokota, H.
    • Asian-Australasian Journal of Animal Sciences
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    • 제18권5호
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    • pp.723-727
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    • 2005
  • Ghrelin is a novel growth-hormone-releasing acylated peptide, which has been purified and identified in rat stomach. In the present study, the full-length sequence of bovine ghrelin cDNA was cloned by RT-PCR. The bovine ghrelin cDNA sequence derived in the present study included a 348 bp open reading frame and a 137 bp 3'UTR. The putative amino acid sequence of bovine prepro-ghrelin consisted of 116 amino acids, which contained the 27-amino acid ghrelin. The sequence analysis of the bovine ghrelin gene revealed that an intron existed between Gln$^{13}$ and Arg$^{14}$ of ghrelin. This exon-intron boundary matched the GT-AG rule of the splicing mechanism. Compared with rats, which have two tandem CAG sequences in the 3'end of intron, bovine ghrelin genome has only one CAG sequence. Therefore, although rats can produce 28 amino acid-ghrelin and 27 amino acid-des-Gln$^{14}$-ghrelin by alternative splicing, ruminant species, including bovines, might be able to produce only one type of ghrelin peptide, des-Gln$^{14}$-ghrelin. The influence of aging on plasma ghrelin concentration was also examined. Plasma ghrelin concentration increased after birth to approximately 600 days of age, and then remained constant.

염전 병행 태양광 발전의 실증과 시뮬레이션 (Salt Farm Parallel Solar Power System:Field tests and Simulations)

  • 박종성;김봉석;김근호;이승민;임철현
    • Current Photovoltaic Research
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    • 제7권4호
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    • pp.121-124
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    • 2019
  • In this research, the concept of a salt farm parallel solar power system, which produce salt and electricity at the same site, is proposed for the first time in the world. The concept is that large waterproof plates made by interconnected solar modules are installed at the bottom of the salt farm. The pilot system was successfully installed at a sea shore, and verified its feasibility as a solar power plant. For deeper understanding, simulations for power prediction of the system were carried out and compared with the field test results. The power generation of the salt farm parallel system is comparable to conventional solar power plants. The cooling effect by sea water contributes more to the increase in the crystalline silicon photovoltaic module performance than the absorption loss due to sea water by maintaining certain height above the module.

u-Farm을 위한 모바일 기반의 농작물 재배 현장 중심형 스마트 병해충 정보검색 시스템 설계 및 구현 (Design and Implementation of Produce Farming Field-Oriented Smart Pest Information Retrieval System based on Mobile for u-Farm)

  • 강주희;정세훈;노선식;소원호;심춘보
    • 한국전자통신학회논문지
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    • 제10권10호
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    • pp.1145-1156
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    • 2015
  • 현재 농작물의 품질과 직결되는 병해충에 관하여 농작물 재배 현장에서 바로 사용할 수 있는 모바일 전용의 응용 시스템은 부족한 실정이다. 따라서 본 논문에서는 병해충 예찰 및 기본 정보에 관해서는 충실하나 즉각적인 진단 기능이 매우 부족하고 아울러 농작물 재배 현장에서 바로 사용할 수 있는 모바일 기반의 병해충 전용 시스템의 부재를 개선하기 위해서, u-Farm을 위한 모바일 기반의 농작물 재배 현장 중심형 스마트 병해충 정보검색 시스템을 설계 및 구현한다. 제안하는 시스템은 이미지의 전문 분석에 유용한 검색 라이브러리인 루씬(Lucene) 및 JSON 데이터 구조를 기반으로 농작물 재배 현장에서 병해충의 정보를 웹뿐만 아니라, 본인이 소유한 스마트 폰을 통해 실시간으로 직접 확인할 수 있는 장점이 있다. 또한, 시스템의 확장 및 재사용성을 높이기 위해 객체지향 모델링을 기반으로 설계하였으며, 농작물의 메타 정보뿐만 아니라, 메타 정보 기반의 텍스트 및 색상 등과 같은 이미지 특징 정보를 기반으로 검색이 가능하다. 본 시스템을 통해 u-Farm 실현뿐만 아니라 농업인이나 재배 현장 관리자들이 농작물 작황, 병해충 현황 파악 및 관리를 실시간으로 진행할 수 있다.

행원 풍력발전단지의 WAsP 적용 및 평가 (Application and Assessment of WAsP for Haengwon Wind Farm)

  • 변수환;고경남;허종철
    • 한국태양에너지학회 논문집
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    • 제24권3호
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    • pp.1-7
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    • 2004
  • Using WAsP, which is PC-program for the vertical and horizontal extrapolation of wind data, annual energy production as well as wind energy density has been predicted for Haengwon wind farm in Jeju island. The predicted results were compared with real data derived from wind turbines in Haengwon wind farm. As the results, in order to produce more electric power, new wind turbines should be located along coastal line, which has comparatively high wind energy density. Also, the roughness length should be inputted to the Map Editor program for better agreement with real annual energy production.