• 제목/요약/키워드: Agricultural usage

검색결과 318건 처리시간 0.02초

갈수기 지하수 물 사용량 저감 및 기저유출 수질 개선 방안 연구 (A Study on How to Reduce the Amount of Groundwater Used in the Dry Season and Improve the Water Quality of the Base Runoff)

  • 강태성;양동석;유나영;신민환;임경재;김종건
    • 한국농공학회논문집
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    • 제64권2호
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    • pp.27-35
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    • 2022
  • Based on the current status of groundwater usage in the dry season through field surveys, this study tried to suggest countermeasures to reduce groundwater usage and to improve the water quality of baseflow from agricultural fields. For this purposes, basins with water curtain cultivation preceded were targeted where decreases of groundwater due to continuous use of groundwater in spring and winter annually observed. From monitoring groudwater usage of the study watershed, 130,058, 130,105 m3/day of water was pumped in during the water curtain cultivation period (October-February) in the Shindun, Seokwon watershed respectively. And the pilot application of the smart automated sensor-based water curtain cultivation system (smart WC system) developed in this study to reduce groundwater consumption has been conducted. As a result, the efficiency of the smart WC system when threshold temperature is set as 6.3 ℃ was 21.1% compared to conventional cultivation and efficiency increased as threshold temperature gets lower. Lastly, in this study, culvert drainage and Bio-filters were installed and rainfall monitoring was performed 15 times in order to analyze the baseflow securement and pollutant loads behavior. As a result, the test-bed with culvert drainage and Bio-filter installed together generated 61.4% more baseflow (4.974 m3) than the test-bed with only culvert drainage was installed (3.056 m3). However, the total pollutant load of all water quality contents (BOD, COD, T-N, TOC) except for the SS and T-P was found to be greater in the culvert drain and Bio-filter installed than in the culvert drain test-bed.

농촌 시설물 건설 프로세스 분석 (A Study on the Construction Process of Agricultural Facilities)

  • 신한우;김태희;김광희;조형근
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2008년도 추계 학술논문 발표대회
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    • pp.151-154
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    • 2008
  • In today's agriculture, there has been an increase in the construction of agricultural facilities due to the need to maximize land usage and many customer demands for products. But many agricultural facilities are constructed by not qualified construction company so it often causes many accidents like breakdowns and repairs. this study is to understand the construction process of agricultural facilities. The results of this research are that greenhouse is lack of the law of contract and the performance and need for the construction process supervision. Vinyl House is needed to supervise the design of the structure.

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A review of drug knowledge discovery using BioNLP and tensor or matrix decomposition

  • Gachloo, Mina;Wang, Yuxing;Xia, Jingbo
    • Genomics & Informatics
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    • 제17권2호
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    • pp.18.1-18.10
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    • 2019
  • Prediction of the relations among drug and other molecular or social entities is the main knowledge discovery pattern for the purpose of drug-related knowledge discovery. Computational approaches have combined the information from different sources and levels for drug-related knowledge discovery, which provides a sophisticated comprehension of the relationship among drugs, targets, diseases, and targeted genes, at the molecular level, or relationships among drugs, usage, side effect, safety, and user preference, at a social level. In this research, previous work from the BioNLP community and matrix or matrix decomposition was reviewed, compared, and concluded, and eventually, the BioNLP open-shared task was introduced as a promising case study representing this area.

강원도 고랭지 농업인의 농약 노출 및 SF-12를 이용한 건강수준 측정 (Pesticide exposure of alpine agricultural workers in Gangwon-do and the measurement of their health status measured by SF-12)

  • 송재석;박웅섭;서종철;곽연희;김상아;김병섭;최홍순
    • 농약과학회지
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    • 제9권4호
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    • pp.287-291
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    • 2005
  • 농업기술의 발전으로 인하여 농약사용은 증가하게 되었으며, 이에 따라 농약사용으로 인한 건강영향에 대한 관심도 증가시켰다. 그러나 농약의 사용과 노출된 근로자의 주관적인 건강상태에 관한 연구는 아직 없는 형편이기 때문에 본 연구에서는 농약 노출과 주관적인 건강상태의 연관성에 관한 연구를 시도하고자, 집단의 건강상태를 알기 쉽고 농촌지역의 노인인구를 대상으로 쉽게 설문을 할 수 있는 SF-12를 이용하여 농약과 건강상태의 상관관계를 분석하였다. 조사 대상은 농약을 많이 사용하는 것으로 알려진 강원도 일부지역 고랭지 농업인을 대상으로 하였다. 분석결과 고랭지 농업인이 일반 농업인보다 전체 노출지수나 살충제 노출지수, 제초제 노출지수, 급성 중독 증상 지수 모두 높았다. 그러나 본 연구는 단면적 연구이고 건강상태에 영향을 미칠 수 있는 다양한 요인들이 통제가 안 되어 있다는 제한점을 가지고 있으나 농약과 건강수준, 특히 만성적인 건강 장해를 일으킬 수 있다는 점을 제시하여 농약의 과다사용을 방지하고 농약사용에 대한 보건학적 주의가 필요하다는 점을 제시할 수 있으며 향후 이에 대한 체계적인 연구가 이루어져야 할 필요가 있다.

Nutritional Value of Mealworm, Tenebrio molitor as Food Source

  • Ravzanaadii, Nergui;Kim, Seong-Hyun;Choi, Won-Ho;Hong, Seong-Jin;Kim, Nam-Jung
    • International Journal of Industrial Entomology and Biomaterials
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    • 제25권1호
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    • pp.93-98
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    • 2012
  • Nutrition value of mealworm, Tenebrio molitor was analyzed due to increasing demand of usage as a protein source for domestic animals and even further for human consumption. The purpose of the present work was to determine the chemical compostion of the Tenebrio molitor larvae, adult that were maintained under standard condition for further usage of mass-rearing system and its exuvium, and excreta. Tenebrio molitor, larvae, adult, exuvium and excreta contained 46.44, 63.34, 32.87, and 18.51% protein respectively, suggested that even excreta could be used as an additional supplement in food recycling process. This protein was also rich in amino acids such as Isoleucine, leucine and Lysine which all met the nutritional value recommended by the Food and Agriculture Organization. Fatty acid composition was detected with high component of oleic acid (C18:1), along with linoleic acid (C18:2) and palmitic acid (C16) in all adult, larvae, exuvium and excreta. These oleic acid (C18:1), linoleic acid (C18:2) and palmitic acid (C16) components were the same or even highly contained in excreta of mealworm 22.29, 47.19 and 19.17% respectively. Longer chains of unsaturated fatty acids consisted of two to three double bonds are known as healthy product was recognized in large amount. These results show new ways to consume mealworms and its waste for animal and human consumption.

농산물 유통 정보화 촉진을 위한 KAN코드 사용 확대에 관한 연구 (A Study on KAN Code ID for Promoting Distribution Information or Agricultural Products)

  • 안승용;강경식
    • 대한안전경영과학회지
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    • 제8권5호
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    • pp.99-117
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    • 2006
  • Consumers keep demanding for diversified high quality products, valuable services and safety. With this in mind, Distribution Industry is being updated rapidly to accomodate this demand. Meanwhile, Distribution Information Technology of agricultural products has been in slow progress with little in-depth studies. In this study, it has been analyzed the usage of Bar code which is the key element for agricultural Distribution Information Technology. The analysis was conducted through a survey utilizing questionnaire covering 5 Hypermarkets(Super-centers) including big 3 companies. Also, Japanese market trends have been studied to visit a Japan Government Organization concerned, GS1 Japan, an Agricultural Cooperative, an Agricultural Wholesale Market, and a Retail Company. If we could use KAN code for all agricultural products, we could collect and analyze the information of price and trade quantity of them. It opens a new era to understand the agricultural products supply and demand easily. This will certainly make a great contribution to the evolution of agricultural products distribution. From this research, it is suggested that collective efforts by suppliers, wholesalers, retailers and Government Officers are needed to make large scale mutual marketing Organizations, which specialize in sending out agricultural products. The Organization is recommended to standardize and pack every final agricultural products, to promote the use of KAN code.

바이오매스 연료로서 미활용 농업부산물의 반탄화 특성 (Torrefaction Properties of Unused Agricultural Residues As Biomass Fuel)

  • 윤여성;강구;박성직;홍성구
    • 한국농공학회논문집
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    • 제59권5호
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    • pp.17-23
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    • 2017
  • In South Korea, 25 % of annual agricultural residues (11.64 million tons) are unused. The hydrophilicity, low lower heating value (LHV), and low energy density of agricultural residues can be obstacles for efficient usage. Torrefaction, a low temperature pyrolysis process, can be a solution to overcome these disadvantage of agricultural residues. In this study, agricultural residues such as bean stem, pepper stem, perilla stem, sorghum stem, acorn shell, and ginkgo shell are torrefied at 200, 230, and $250^{\circ}C$ and evaluated energy properties, respectively. The torrefaction can increase the LHV and energy density rate of agricultural residues from 3,331~4,444 kcal/kg to 4,166~5,830 kcal/kg and 20~30 %, respectively.

A Comparative Study of Image Classification Method to Classify Onion and Garlic Using Unmanned Aerial Vehicle (UAV) Imagery

  • Lee, Kyung-Do;Lee, Ye-Eun;Park, Chan-Won;Na, Sang-Il
    • 한국토양비료학회지
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    • 제49권6호
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    • pp.743-750
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    • 2016
  • Recently, usage of UAV (Unmanned Aerial Vehicle) has increased in agricultural part. This study was conducted to classify onion and garlic using supervised classification of a fixed-wing UAV (Model : Ebee) images for evaluation of possibility about estimation of onion and garlic cultivation area using UAV images. Aerial images were obtained 11~12 times from study sites in Changryeng-gun and Hapcheon-gun during farming season from 2015 to 2016. The result for accuracy in onion and garlic image classification by R-G-B and R-G-NIR images showed highest Kappa coefficients for the maximum likelihood method. The result for accuracy in onion and garlic classification showed high Kappa coefficients of 0.75~0.97 from DOY 105 to DOY 141, implying that UAV images could be used to estimate onion and garlic cultivation area.