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황윤재(Hwang Yun-jae),이동소(Lee Dong-so) 한국농촌경제연구원 2014 한국농촌경제연구원 정책연구보고서 Vol.- No.-
This study was done to ① look into countermeasures at home and abroad since the Fukushima Daiichi nuclear accident of March 2011, ② examine how the information regarding Japan’s radioactivity has spread by analyzing the trend of media reports and on-line public opinions, and ③ identify the implications of the nuclear disaster on agricultural food products consumption and people’s awareness through statistics and a consumer survey. In the aftermath of Japan’s earthquake and tsunami in March 2011, there were radiation leak accidents from the Fukushima Daiichi nuclear power plant. Japan’s Ministry of Health, Labour and Welfare has been striving to secure food safety since then by establishing new regulations regarding foods and investigating radioactive materials in major food items such as marine products. A series of countermeasures have been taken by the Korean government too, led by the Ministry of Agriculture, Food and Rural Affairs and the Ministry of Food and Drug Safety, including reinforced inspection or a ban on imported foods from Japan. Various reports have been made up until now since the disaster covering radiation leak accidents and progress, status of or criticism for the government’s response, safety promotion, and rising sense of crisis. Such reports have tended to take on a relatively long-term aspect compared to other coverage about general agricultural food safety accidents. The negativity espoused in the media makes it harder for consumers to ease their concerns over radioactivity and food safety. Providing information regarding radioactivity online takes various forms such as media news coverage, postings on blogs and cyber cafes, and video clips. There had not been much on-line information about radioactivity before March 2011, though it differed by media and means. On the other hand, relevant information increased significantly as consumers became more concerned about radioactivity for 2 to 3 months after the accident. It decreased over time as consumers got less interested in radioactivity before rising again around September 2013. According to the ‘Household Income and Expenditure Survey’ of Statistics Korea for the household expenditure on agricultural food and livestock products, the overall spending on marine and processed marine products fell after 2011 in terms of both size and ratio. People spent less money especially on fresh marine products such as fish and shellfish (cutlassfish, pollack, clam, etc.). The consumer survey shows that they are highly anxious about radioactivity and have extremely negative perception toward the safety of Japanese agricultural food products. According to the survey, consumers’ level of agricultural food consumption has changed after the radiation leak, impacting the demand for marine products the most. It is still affecting the agricultural food consumption even after 3 years. There is also low consumer confidence in the government’s efforts to secure agricultural food safety against the nuclear disaster. Consumers recognize that the government should intensify quarantine and safety inspection for imported agricultural food products to promote food safety. With this radiation leak accident having relatively longer influence than other food safety incidents or accidents, there is a possibility that this issue might be rising again or reignited when circumstances require. In fact, new developments or media coverage related to radioactivity can have huge ripple effects economically and politically, stimulating consumers’ potential anxiety over radiation. Therefore, relevant ministries in charge of the food industry, including the Ministry of Agriculture, Food and Rural Affairs and the Ministry of Food and Drug Safety, should closely monitor the trend of public opinion about radioactivity and come up with long-term countermeasures to secure consumer confidence.
황윤재 ( Yun Jae Hwang ),한재환 ( Jae Hwan Han ),이계임 ( Kyei Im Lee ) 한국축산경영학회 2015 농업경영정책연구 Vol.42 No.1
The purpose of this study is to analyze consumers’ perception on developing and cultivating GM agricultural products domestically. Double probit model is used to find the factors which affect consumers’ perception simultaneously. The main results are as follows; Firstly, consumers with higher confidence level on food safety and with higher knowledge on GMO tend to assent to the necessity of developing GM agricultural products domestically. Also, consumers who are familiar with GMO-related domestic situation have higher probability of supporting the domestic development of GM agricultural products. Secondly, consumers with higher concern on GM technology have higher probability of having negative opinion on the domestic development. Also, older people and low income people usually are more negative for the necessity. Thirdly, consumers with higher confidence level on GMO-related government policy and with more knowledge on GMO tend to assent the domestic cultivation of GM agricultural products which is similar to the results for consumers’ perception on GMO domestic development. Finally, consumers who are worried about unpredictable future risks of GMO tend to oppose the domestic cultivation. Thus, it can be concluded that since consumers’ knowledge level on GMO acts as key factor on consumers’ perception on developing and cultivating GMO domestically, it is necessary to provide consumers with objective and accurate information as a part of government’s risk communication strategy on GMO.
농산물의 주요 감모 요인 분석 -주요 채소류 사례를 중심으로-
황윤재 ( Yun Jae Hwang ),한재환 ( Jae Hwan Han ),조명기 ( Myoung Ki Cho ) 한국식품유통학회 2011 食品流通硏究 Vol.28 No.1
This study has the purpose of researching main factors of the agricultural products loss and waste. In the study, agricultural products loss refers to any type of quantity loss including weight reduction not accompanied by disposal. Waste refers to partial or entire disposal of agricultural products with intention in order to handle rotten or deteriorated produce and adjust produce volume. In this study, four commodities such as chinese cabbage, radish, onion, and watermelon from the vegetable category were included as research objects. Interviews or questionnaire-based surveys were conducted against stakeholder for each step of agricultural products processing from production to consumption. This study shows that supply control and the partial or entire disposal of low quality products are the main factors of agricultural products loss in the production stage. In the wholesale stage, quality testing is one of the main factors. Handling deteriorated products is a common factor in both wholesale stage and retail stage. However, the amount of agricultural products loss is relatively small due to a high product turnover ratio in these stages. In the consumption stage, handling low quality products and the remains of a meal, over-removal of products during processing or cooking is major factors of agricultural products loss.
황윤재(Yun Jae Hwang),임민혁(Min Hyeok Lim),팽창웅(Changung Paeng),박형욱(Hyung Wook Park),김지수(Jisoo Kim) Korean Society for Precision Engineering 2023 한국정밀공학회지 Vol.40 No.3
MXene is one of the most fascinating 2D materials owing to its great electrical properties and unique performance. Among various application areas, the performance of organic material adsorption has been highlighted with the growing interest in the biocompatible applications of MXene. Although previous research revealed that the huge surface area of this 2D nanomaterial could lead to superior organic material adsorption performance, surface functional groups were usually controlled by changing the pH, and the MXene was generally produced by HF etchant. In this study, a surface modification method of Ti₃C₂T<SUB>x</SUB> MXene film was proposed to enhance organic material adsorption by irradiating the pulsed plasma electron beam (EB). Methylene blue (MB)-dispersed DI water was prepared, and pristine MXene was prepared at pH 7. The MB concentration was only reduced by 20% by pristine MXene. However, EB-treated MXene adsorbed about 75% of the MB within 20 min and over 90% within 80 min when the MXene film was ground to powder form. The results showed that the increased surface area and formation of hydrophilic functional groups successfully modified MB adsorption following EB irradiation under optimal processing conditions.
황윤재 ( Yun-jae Hwang ),한재환 ( Jae-hwan Han ) 한국농식품정책학회 2011 농업경영정책연구 Vol.38 No.3
Mutual cooperation between central and local governments is essential to effective food safety management. The purpose of this study is to analyze consumers` awareness for the roles of central and local governments and relationship between them for food safety management. This study conducted a random survey of 300 adults around capital area to accomplish an objective of the study. Also, econometrics model of binary logit was introduced to analyze consumers` awareness of the relationship between central and local governments. The results show that consumers who are female and relatively young think that there exists mutual cooperation between central and local governments. Also, the important factors are residence and education level. Consumers who are not highly educated and live in seoul area believe of the existence of mutual cooperation relationship. And consumers with high confidence for food safety management of government and high belief on importance of the roles of central and fundamental local governments also show belief on the existence of mutual cooperation relationship.