• Title/Summary/Keyword: farm

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Design of SCADA System for a Large-Scale Offshore Wind Farm (대규모 해상풍력발전단지 운용을 위한 SCADA 시스템 설계)

  • Kim, Dong Wook;Song, Jae Ju;Jung, Nam Joon;Choi, Hyo Yul
    • KIPS Transactions on Computer and Communication Systems
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    • v.1 no.3
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    • pp.161-170
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    • 2012
  • In recent years, many researchers and developers have been interested in renewable energy all over the world. Particularly, the development of wind power is being processed actively due to its high economic efficiency. A few years ago, Korean government has started the research for building a large-scale offshore wind farm in domestic west-southern area. Current domestic SCADA technology level for operating wind farm is very low compared with foreign SCADA technology level. In this paper, we found IT issues and solutions for developing SCADA system. Based on these solutions, we designed SCADA system for a large-scale offshore wind farm.

A Study on Importance and Score Setting of HACCP Evaluation Items on Pig Farm (돼지농장 HACCP 평가항목의 중요도 및 점수 설정에 관한 연구)

  • Nam, In-Sik
    • Korean Journal of Organic Agriculture
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    • v.25 no.1
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    • pp.233-246
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    • 2017
  • This study was conducted to improve the score of HACCP evaluation items in pig farm. The importance and score of each HACCP evaluation item was derived through the non-compliance rate and severity of hazard. The total score of evaluation items of the pre-requisite section was 200 points and the HACCP section was developed to have a total of 100 points. Implementation of the result of this study to pig farm may help to improve more safety and hygienic pig production. With the result of this study, it is expected that the propose of HACCP system implementation in pig farm will be achieved.

A Study of Investigation the Actual conditions on Housing and Facilities for Korean Native Goat (흑염소 축사시설에 관한 실태조사 연구)

  • 최순호;정광화;조영무;강희설;김원호;김영근
    • Journal of Animal Environmental Science
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    • v.7 no.1
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    • pp.13-20
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    • 2001
  • This study was conducted to investigate the actual conditions on housing and facilities for goat. This investigation of the actual conditions was investigated by the style of farm which was divided into sideline scale and speciality scale included 47 farms. The results are summarized as follows: Rearing scale was 48.9% for 50-100 heads per farm. Rearing type was 46.8% for grazing type and 53.2% for barn type. Housing type was 27.7% for simple frame housing and 72.3% for permanent housing. Pipe was used 80.8% with Pillar and Girder as the housing frame at farm. For the pipe used in farm, 27.7% of them was used for simple frame housing. Side wall was composed of cement and winch curtain to be 29.8%, slate roof to be 40.4%, pipe partition to be 38.3%, and cement floor to be 51.1%. Materials of feeding trough were wood and Zinc grater to be 41.5%, respectively. Type of feeding trough was square to be 70.2%. The feeding trough was located in barn to be 48.9%. Material of water supply facilities was plastic to be 87.2%. Type of water supply facilities was mostly square to be 76.6%. Water-trough was located in playground to be 48.9%. Parturition facilities were consisted of partition structure by group to be 42.5% and were mainly composed of pipe and wood. 46.8% of the barn did not have delivery room in the farm.

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Factors Influencing Farm-Gate Shrimp Prices in Thailand: An Empirical Study Using the Time Series Method

  • MUANGSRISUN, Donlathorn;JATUPORN, Chalermpon;SEERASARN, Nareerut;WANASET, Apinya
    • The Journal of Asian Finance, Economics and Business
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    • v.8 no.5
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    • pp.769-775
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    • 2021
  • The objective of this research was to analyze the factors influencing the farm-gate shrimp prices in Thailand using monthly time series from January 2001 to December 2019. The econometric methodology was employed to satisfy the purpose, consisting of the cointegration test for revealing the long-run relationship and equilibrium elasticity between the variables as well as the error correction model for detecting speed adjustment to shock responses. The empirical results revealed that (1) the export shrimp prices, shrimp production in the country, and shrimp export volume indicated a long-run relationship running to the farm-gate shrimp prices in Thailand with the size of equilibrium elasticity equal to 1.083%, -0.256%, and 0.123, respectively, and (2) the farm-gate shrimp prices in Thailand would adjust to the equilibrium line with a speed equal to 20.147% if there was any kind of incident or shock which caused the relationship to deviate from the equilibrium point. There was no relationship in terms of global shrimp prices and the exchange rate for farm-gate shrimp prices in Thailand. The recommendations should emphasize the varieties of shrimp products for export to other countries beyond the main trading markets nowadays to reduce risks and fluctuations in the export prices of shrimp products.

Estimating Economic Optimum Planted Area for Sustainable Schisandra chinensis Cultivation

  • Lee, Byoung-Hoon
    • Journal of Forest and Environmental Science
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    • v.35 no.3
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    • pp.173-180
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    • 2019
  • This study determined the economic impact of environment-friendly cultivation and the optimal cultivation area of Omija (Korean for Schisandra chinensis Baillon) for full-time farmers by analyzing the management performance of existing Omija cultivators. The study divided the target income into urban household income and Omija farm income, and estimate the optimal cultivation area by substituting the target profit from the cost-volume-profit analysis model. The optimum cultivation area was 1.4 ha for general cultivation, 1.08 ha for organic cultivation, and 1.18 ha for pesticide-free farming cultivation considering the average urban household income as the target, and 0.81 ha for general cultivation, 0.63 ha for organic cultivation, and 0.69 ha for pesticide-free farming, considering the average 2012 farm household income as the target. Therefore, the study reached conclusion that it is necessary to secure the price of Omija farm and stable support for income increase. Therefore, the support plan for income stabilization of Omija farm should be considered. Especially, the central government should provide various policies and financial support to help the optimal cultivation area of Omija Farm.

Design of Smart Farm with Automatic Transportation Function

  • Hur, Hwa-ra;Park, Seok-Gyu;Park, Myeong-Chul
    • Journal of the Korea Society of Computer and Information
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    • v.24 no.8
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    • pp.37-43
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    • 2019
  • The existing smart farm technology has been systematized for the mass production rather than the consumer. There are many problems such as economical aspect to apply to actual rural environment due to aging. The purpose of this study is to apply smart farm technology based on the applicability of population aged in rural areas. Due to the heat wave, the crops in general greenhouse cultivation facilities suffered from damage such as sunlight damage. To minimize such damage, adjust the temperature and humidity environment or install a light-shielding film. However, the workers in the rural areas are aging and the elderly who are farming alone have a lot of difficulties in doing so. In the case of people with weak physical strength, there is a danger that they may lead to safety accidents when carrying heavy loads. In this paper, we propose 'Smart Palm capable of automatic transportation function', applying small smart vehicles that follow workers to existing smart farms to improve and prevent these problems. It is a smart farm that performs the control functions of the existing smart greenhouse environment, installs the rail for each trough, and has a vehicle that follows the worker. The smart app can directly control the greenhouse and the vehicle remotely manually.

Review of the marine environmental impact assessment reports regarding offshore wind farm

  • Oh, Hyun-Taik;Chung, Younjin;Jeon, Gaeun;Shim, Jeongmin
    • Fisheries and Aquatic Sciences
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    • v.24 no.11
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    • pp.341-350
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    • 2021
  • The energy production of offshore wind farms plays an important role in expanding renewable energy. However, the development of offshore wind farms faces many challenges due to its incompatibility with marine environments and its social acceptability among the local community. In this study, we reviewed the marine environmental impact assessment status of offshore wind farm development projects for 2012-2019 in South Korea. A total of nine projects were selected for this study, all of which experienced considerable conflict with local fisheries resources. To appropriately respond to the underlying challenges faced by offshore wind farm development and in order to better support decision-making for future impact assessment, our findings identified: i) a need for adequate preliminary investigation and technical examination of fisheries resources; ii) a need to assess and estimate the impact of underwater noise, vibration, and electromagnetic waves on fisheries resources during wind farm construction and operation; and iii) a need for a bottom-up approach that allows for communication with local stakeholders and policy-makers to guarantee the local acceptability of the development.

Influence of Credit on the Income of Households Borrowing from Banks: Evidence from Vietnam Bank for Agriculture and Rural Development, Kien Giang Province

  • Quang Vang, DANG;Viet Thanh Truc, TRAN;Hieu, PHAM;Van Nam, MAI;Quoc Duy, VUONG
    • The Journal of Asian Finance, Economics and Business
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    • v.10 no.2
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    • pp.257-265
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    • 2023
  • This paper investigates the determinants of credit accessibility and the effect of credit on the income of farm households borrowing from Vietnam Bank for Agriculture and Rural Development, Giong Rieng District Branch, Kien Giang Province. Based on the primary data of 200 farming households who are the customer of the bank, the study applied the Probit regression model to examine determinant factors of credit accessibility of farm households and employed the Propensity score matching method to investigate the impact of credit on households' income. The findings of the Probit regression shown that three independent variables that significantly influence the access to credit of households are household size, income source, and farm size. Besides that, the Propensity score matching method results showed a difference of 23.799 million VND/year between the income of borrowing households and that of non-borrowing households at the significance level of 1%. The difference in the imcome from the interval and central matching methods are VND 24.700 million VND/year and VND 24.633 million VND/year, respectively. Given empirical findings suggetsted that several recommendations to increase the credit accessibility of farm households, thereby creating favorable conditions for improving their income.

Disinfection of various materials with 3-(trimethoxysilyl)-propyldimethyloctadecyl ammonium chloride in hatchery facilities

  • Kim, Yu-Jin;Kim, Jun-Beom;Song, Chang-Seon;Nahm, Sang-Soep
    • Animal Bioscience
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    • v.35 no.4
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    • pp.631-637
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    • 2022
  • Objective: Surface disinfection is important in the proper running of livestock farms. However, disinfection of farm equipment and facilities is difficult because they are made of different materials, besides having large surface areas and complex structures. 3-(trimethoxysilyl)-propyldimethyloctadecyl ammonium chloride (Si-QAC) is a quaternary ammonium salt-based disinfectant that attaches to various surfaces by forming covalent bonds and maintains its disinfecting capacity for a considerable time. Our aim was to evaluate the potential use of Si-QAC for disinfection of farm equipment and facilities. Methods: The short- and long-term antimicrobial and antiviral effects of Si-QAC were evaluated in both laboratory and farm settings using modified quantitative assessment method based on the standard operating procedures of the United States Environmental Protection Agency. Results: Si-QAC was highly effective in controlling the growth of the Newcastle disease virus and avian pathogenic Escherichia coli. Electron microscopy revealed that the mechanism underlying the disinfection activity of Si-QAC was associated with its ability to damage the outer membrane of the pathogen cells. In the field test, Si-QAC effectively reduced viral contamination of surfaces of equipment and space. Conclusion: Our results suggest that Si-QAC has great potential as an effective chemical for disinfecting farm equipment and facilities. This disinfectant could retain its disinfection ability longer than other commercial disinfectants and contribute to better farm biosecurity.

Strangulating Large Colon Volvulus: A Diagnostic and Surgical Challenge in a Post-Partum Thoroughbred Mare

  • Jungho Yoon;Youngjong Kim;Jongyoung Park;In-Soo Choi;Peter Colket Rakestraw;Ahram Kim
    • Journal of Veterinary Clinics
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    • v.39 no.6
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    • pp.405-410
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    • 2022
  • An 11-year-old thoroughbred post-partum broodmare presented with the symptoms of colic. The physical and clinical examinations indicated a large colon displacement or volvulus. Immediate surgical intervention was performed, and a strangulating large colon volvulus (LCV) was defined as a volvulus of >540° in the counterclockwise direction. After correcting and assessing the gut viability, approximately 80% of the entire large colon was resected and anastomosed using an end-to-end technique. With supportive care after surgery, the horse regained its appetite and vitality without significant clinical complications and was discharged on postoperative day 9. This report presents the first surgical correction using a large colon resection and anastomosis (LCRA) and the critical care for a strangulating LCV in a horse in Korea. This case enhances the current knowledge of clinical LCV and the related considerations for treatment.