• 경영과학
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• 제17권3호
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• pp.73-95
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• 2000

In Korea, the distribution channel for agricultural products is notorious for its complexity and ineffectiveness. In this sense, the Agricultural Cooperative has tried to clarify the distribution channel and reduce its length. However, there still exist much room for improvements. The Internet shopping mall specific for agricultural product, therefore, is drawing much attention because it can reduce the length of distribution channel drastically and improve effectiveness from the distribution perspective. To test the validity of such Internet-driven shopping mall, we gathered questionnaire data from the Internet based Hannaro Shopping Mall which is run directly by the Agricultural Cooperative. We performed experiments respectively for the two groups of operating personnel and consumers. Experimental results showed that several important factors can be identified which are significant statistically and deemed to have meaningful relationship with performance variables. Our results also showed that the Internet shopping mall has a great potential for improving the effectiveness of the distribution channel of the agricultural products.

• 한국식품위생안전성학회지
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• 제34권3호
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• pp.283-289
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• 2019

본 연구에서는 광주광역시 학교급식 농산물의 잔류농약을 모니터링하고 섭취량에 따른 위해평가를 실시하였다. 2015년부터 2017년 까지 광주광역시 소재 학교에 공급되는 농산물 320건을 실험대상으로 하였다. 농산물 전처리 및 잔류농약 분석은 식품공전 다종 농약 다성분 분석 제2법에 따라 120종의 잔류농약을 실험하였다. 검량선에 대한 직선성 상관계수는 0.9923~1.0000, LOD는 0.004~0.019 mg/kg, LOQ는 0.012~0.057 mg/kg으로 양호하게 나타났으며 회수율은 79.1~100.2%로 나타났다. 학교급식에 사용되는 농산물 320건 중 18건(5.6%)에서 잔류농약이 검출되었으며, 고구마 순 1건(0.3%)이 잔류농약허용기준을 초과하였다. 잔류농약 검출빈도는 고추 8회, 파프리카 3회로 다른 농산물에 비해 높은 검출빈도를 나타내었고 가장 높은 검출빈도를 나타낸 잔류농약은 boscalid(4회)와 acetamiprid(3회)로 나타났다. 실험결과 학교급식 농산물 중 고추, 파프리카, 고구마 순에 대한 잔류농약 관리가 필요한 것으로 나타났다. 잔류농약 위해도 평가 결과 고구마 순에서 검출된 bifenthrin이 64.18%로 가장 높았으며, 고추에서 검출된 boscalid 등의 Hazard index는 0.03~8.23%로 나타나 학교급식 농산물의 Hazard index는 안전한 수준으로 평가되었다. 그러나 채소류를 학교급식 식재료로 제공할 경우 잔류농약 식이섭취량을 최소화하기 위해 철저한 세척이 필요한 것으로 판단되며 친환경 농산물의 식재료 보급 확대가 필요한 것으로 판단된다.

• 한국환경농학회지
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• 제25권2호
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• pp.180-189
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• 2006

2003년부터 2005년까지의 인천광역시에서 유통되고 있는 농산물 총 10,431건의 잔류농약검사를 실시한 결과, 전체수거건수에 대한 부적합비율은 2003년, 2004년, 2005년에 각각 1.3%, 0.9%, 1.2%로 나타났다. 특이한 점은 2005년도에는 대형일반유통업체의 수거비율에 대한 부적합비율의 비가 3.1로서 두 도매시장의 비인 0.9보다 큰 비를 나타냈다. 이 사실은 2005년도의 대형일반유통업체 수거건수가 2003년, 2004년보다 1/5가량 줄었으나 대형일반유통업체의 부적합이 도매시장의 부적합보다 더 많은 빈도로 나타났다고 사료된다. 생산지별 부적합 현황은 2003년과 2004년에는 경기도와 인천시가 전체의 70% 이상을 나타냈으나 2005년도에는 경기도와 인천시가 각각 25.6%와 23.3%를 나타냈다. 2005년도에는 광주, 울산, 충북이 새롭게 나타났다. 최근 3년 동안 부적합이 가장 많이 발생한 농산물은 쑥갓으로 총 23건이었으며, 취나물, 참나물, 상추가 각각 15건, 고춧잎이 13건이었다. 쑥갓 중에 가장 많은 부적합을 나타낸 농약은 diazinon으로 23건 중 7건이 나타났다. 취나물, 참나물, 상추, 고춧잎에서 가장 많은 부적합을 나타낸 농약은 chlorpyrifos였다. 검출된 농약의 종류는 2003년부터 2005년까지 각각 12개, 17개, 32개로 증가하는 추세였고 부적합 농약의 종류도 11개, 13개, 20개로 증가하는 추세였다. 2003년부터 2005년까지 매년 검출되고 부적합이었던 농약은 chlorothalonil, chlorpyrifos, diazinon, endosulfan, procymidone 등이었다. Chlorpyrifos와 diazinon은 검출과 부적합이 해가 갈수록 감소하는 경향을 나타냈다. 그러나 chlorothalonil, endosulfan, procymidone은 2005년도에는 검출만 증가하는 경향을 나타내고 있다.

• 한국식생활문화학회지
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• 제30권2호
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• pp.170-181
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• 2015

The purpose of this study was to categorize and comparatively analyze tourists of different life-style groups who visit Yesan according to their lifestyles as well as their consumption behaviors and attitudes towards local foods or specialty agricultural products in order to understand the various needs, attitudes, and behaviors of consumers in each life-style group. Group 1 had a high percentage of single people in their 20s and those who worked in technology. Group 2 had a high percentage of those in their 30s and 40s who were married and were professionals. Group 3 had a high percentage of men and those in their 40s and 50s, as well as a high percentage of high income, highly educated people. Group 4 had a high percentage of those in their 20s or those in their 60s or higher. Compared to other groups, group 4 had a larger percentage of lower income and less educated people. In verifying the difference between life-style groups in terms of their behaviors and attitudes toward local foods and specialty agricultural products, consumption and experience of regional specialty foods showed high average scores in groups 1, 2, and 3, with significant differences from group 4.

• 한국식품영양학회지
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• 제13권6호
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• pp.595-601
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• 2000

광주광역시에서 생산·유통되고 있는 농산물 총 80개 품목(양파, 파, 마늘, 상치, 배추, 고추, 시금치. 무, 배, 복숭아)을 구입하여 중금속 및 미량금속 함유량을 조사한 결과 다음과 같은 결과를 얻었다. 수은은 모든 검체에서 검출되지 않았으며, 비소는 0.001 ppm이하의 결과를 보였다. 카드뮴과 납의 경우 각각 N.D.∼0.088 ppm과 N.D.∼0.096 ppm으로 검출되어 자연 함유량 수준으로 판단된다. 또한 농산물의 생육에 필수 원소로 작용하는 구리, 망간과 아연의 함유량은 0.109∼1.072 ppm, 0.829∼6.195 ppm, 0.731 ∼6.176 ppm으로 검출되었다.

• 펄프종이기술
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• 제34권3호
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• pp.9-16
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• 2002

The adsorption characteristics and surface energetics of hydrophobically modified MCC have been investigated by the inverse gas chromatography technique at infinite dilution. The thermodynamic parameters of adsorption, ΔG, ΔH and ΔS, for n-alkanes were determined at infinite dilution. Heats of adsoption of the n-alkanes increased as the level of hydrophobic modification increased. The hydrophobically modified MCC also showed greater entropy of adsorption indicating restricted mobility of the adsorbed n-alkanes. The acid/base characteristics of the MCC were evaluated using polar probes. As the hydrophobicity of MCC increased, the basisity of the MCC decreased.

• 한국포장학회지
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• 제29권3호
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• pp.211-221
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• 2023

This study was conducted as a basic study for the selection of tags suitable for logistics management in the palletized unit-load unit and the development of various technologies to activate the palletized unit-load shipment of agricultural products through local APCs. Three types of passive RFID tags of UHF 900 MHz and one type of active RFID tag of 2.4 GHz band designed and manufactured through this study were used to analyze the receiving strength according to the tag's attachment location and distance of the palletized unit-load of agricultural products. In the passive RFID tag, there was a large difference in receiving strength by the tag's attachment location and a large amount of data loss depending on the distance within 30 m, whereas, in the active RFID tag, it was superior to the passive tags in terms of both receiving strength and data loss. Therefore, active tags are desirable from the perspective of multiple identification of warehouses with large spaces in relation to the application of RFID tags for palletized unit-loads of agricultural products, but the development of low-power technologies such as software wakeup power management as well as hardware to minimize battery power consumption is necessary.

• 한국농업기계학회:학술대회논문집
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• 한국농업기계학회 1996년도 International Conference on Agricultural Machinery Engineering Proceedings
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• pp.937-946
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• 1996

A Far Infrared Ray (FIR) dryer was designed , constructed and tested for red pepper , lycium chinese, and mushroom (Cortiellus shiitake ) drying , and the results were compared to the heated air dryer at the same condition. In the FIR dryer, three different panel materials , galvanized, copper and stainless steel, were used and no ceramic coating and those with ceramic coating (three panels) were 58% , 56%, 64%, and 88% , respectively. The drying times of lycium chinese and mushroom were shortened in FIR dryer by 6 hrs and 4 hrs compared to the heated air drying, respectively. while to remarkable difference in the drying times was found in the red pepper drying . The quality of products was better in FIR dryer where more red color value for red pepper and lycium chinese and more brightness for mushroom . The drying performance of a FIR dryer was superior in terms of total cost of 80,800 WON /100kg of lycium chinese , reduced by 25% compared to the heated air drying.

• 유통과학연구
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• 제16권2호
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• pp.53-65
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• 2018

Purpose - The purpose of this study is to investigate the effect of gamma - irradiation on the effluent from food distribution in the large agricultural and marine products market. This study will contribute to the distribution process as well as the agricultural and fishery distribution facilities. Research design, data, and methodology - In order to reduce the odor, the smell was examined in the anaerobic digestion process by irradiating gamma rays to the wastewater of mixed food discharged from a large restaurant. An odor determination panel list was constructed to determine if the odor was present in the air dilution drainage and the odor concentration was analyzed by instrumental analysis. Results - It was confirmed that the sulfur content increased gradually from 3 months. Ammonia decreased from 33.57ppm at the initial measurement to 4.12 ppm at the end of the experiment. Methane production was highest at 100kGy when exposed to gamma rays of 0-200kGy at pH 12. In other words, it is considered that gamma irradiation doses are most effective at 100kGy and are suitable for large capacity wastewater treatment facilities in terms of economic feasibility. Conclusions - In pre-treatment of compound food wastewater, gamma irradiation is most cost effective when examined at 100kGy. The economic efficiency of the pre-treatment method by gamma irradiation is much higher than the wastewater treatment in the large-scale agricultural and marine products distribution market.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2010년도 춘계학술대회 초록집
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• pp.252.2-252.2
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• 2010

Biomass is considered to be a major potential fuel and renewable resource for the future. In fact, there is high potential to produce the large amount of energy from biomass around the world. In this study, to obtain basic data for practical application of wood pellet and wood pellet boiler system as heating system in agriculture, agricultural biomass resources were surveyed, pellet was made of agricultural by-product such as stem of rape, oat and rice, ricehusk and sawdust and wood pellet boiler system with capacity of 116 kW was manufactured and installed in greenhouse of $38.5m{\times}32m$. High heating value, bulk density and ash content of pellet made of agricultural by-product and efficiency and heating performance of this system was estimated. Rice straw was the largest agricultural biomass in 2005 and the total amount of rice straw converted into energy of $131.71{\times}10^{11}$ kJ. And in 2005, total amount of forest' by-product converted into energy of $29,277.05{\times}10^{11}$ kJ. High heating values of pellets made of agricultural by-products of stem and seed of rape, stem of oat, rice straw and rice husk were 16,034, 16,026, 16,089, 15,650, 15,044 kJ/kg respectively. High heating values of pellets made of agricultural by-products were 83.6% compared to that of wood pellet. Average bulk density of pellets made of agricultural by-products of stem and seed of rape, stem of oat, rice straw and rice husk was 1,400 $kg/m^3$. Ash contents of the pellets were 6.6, 7.0, 6.2, 5.5, 33% respectively. Ash content of rice husk pellet was the largest compared to other kind of pellets. To increase efficiency of agricultural pellet boiler, the boiler adopted secondary heat exchanger. The agricultural pellet boiler designed and manufactured in this study had high efficiency of 84.2% compared to the conventional agricultural pellet boiler, when water flow rate, exhaust gas temperature and average combustion furnace temperature were 39L/min, $180^{\circ}C$, $680^{\circ}C$ respectively. And pellet supplying and pausing time were 13, 43 seconds respectively. In March of 2010, prices of wood pellet, agricultural tax free diesel, diesel, kerosene were 350 won/kg, 811 won/L, 1,422 won/L, 976 Won/L respectively. Also in terms of energy, prices per same heating value were 77.8, 90.1, 158, 108.4 Won/Mcal. Energy saving rate of wood pellet was 16, 50, 39% compared to agricultural tax free diesel, diesel and kerosene respectively.