• 한국농업기계학회:학술대회논문집
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• 한국농업기계학회 1993년도 Proceedings of International Conference for Agricultural Machinery and Process Engineering
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• pp.423-432
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• 1993

The changes of quality of Fresh Shiitake (Lentinus edodes) was studied in this research work by investigating the effect of low $O_2$ content and high $CO_2$ content, well known as CA Treatment in storage, on the respiration rate and PPO Activity that was the main factor in Shiitake quality decay. CA Condition was conducted in 3 research periods that combined the $O_2$content(1%, 5% and 10%) and $CO_2$ content (5%, 10%, 15% and 20%) and air treatment as the control. The lower $O_2$content was the lower respiration rte that was showed in combination the lower respiration rate that was showed in combination of 20% $CO_2$ and 1% $O_2$ (the lowest), and the control air treatment was the highest . Very low $O_2$ content, conversly, did not show a satisfying result to the product.

• 수산경영론집
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• 제45권3호
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• pp.99-110
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• 2014

Flounder was selected as one of the 10 strategic export aquaculture products for seafood export expansion in 2013. The flounder aquaculture industry has promoted export market diversification and product diversification from live to processed goods as a it's main strategy. The purpose of this study is to find an improvement plan for export expansion to the United States, as it emerged as a new target export market for the flounder. A summary of the key findings is as follows. First, the western region of the United States prefers to consume live and fresh flounder, whereas the eastern region prefers to consume fresh flounder. Second, because of it's high quality, Korean flounder is favored in the western region of the United States despite it's high price, whereas in the eastern region of the United States, where production volume is high, Korean flounder has to compete with US flounders because of it's high price. Third, according to the survey results, US consumers tend to enjoy seafood, as well as flounder cuisines. Fourth, the main consumption place of flounders by US consumers are restaurants, and they prefer to consume them in the form of sashimi and sushi. Fifth, 70% of US consumers expressed willingness to consume flounder when eating out. which shows great market potential. However, the high price of Korean flounder and limited size of the live fish market act as major obstacles to expanding export volume. To expand exporting Korean flounder, continuos efforts such as price reduction, exporting highly fresh fish, the co-development of processed food with the US are needed.

• 한국식품조리과학회지
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• 제19권6호
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• pp.753-757
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• 2003

The quality characteristics of the traditional Korean snack Yut-gang-jung with Perilla, and the changes that occur during storage were investigated. The water and protein content of a fresh sample were 9.67％ and 10.83％, respectively. The water content in the sample stored at 20$^{\circ}C$ changed slightly, but that of the sample stored at 60$^{\circ}C$ showed larger changes from 9.33 ％ to 4.33％. The acidity of the sample stored for 8 days was significantly higher. The hardness of the sample stored at 60$^{\circ}C$ for 4 days was increased significantly. Results of the sensory evaluation indicated the sample stored at 60$^{\circ}C$ had a significantly decreased roasted perilla flavor. The rancid flavor of the sample stored at 20$^{\circ}C$ increased slightly, while that of the sample stored at 60$^{\circ}C$ showed a drastic increase during storage. Therefore, a one week storage of the Yut-gang-jung with Perilla at room temperature is recommended for a product to have a shelf-life with similar physicochemical and sensory properties to fresh samples.

• 공업화학
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• 제25권6호
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• pp.639-644
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• 2014

국내 자동차사는 순정엔진오일을 정해놓고 일반엔진오일보다 높은 가격으로 판매하고 있다. 본 연구에서는 국내 순정엔진오일 14종과 동급의 일반엔진오일(KS제품) 14종에 대하여 품질비교 및 차량을 이용하여 10,000 km씩 주행한 뒤, 회수된 엔진오일의 물성을 분석하였다. 분석 결과, 사용하지 않은 신유는 순정엔진오일과 일반 엔진오일의 품질이 대동소이하였지만, 오히려 주행 후 회수된 일반엔진오일은 순정엔진오일에 비해 윤활성이 우수하였으며, 동점도와 전산가 변화가 작은 것으로 나타났다.

• 한국환경복원기술학회지
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• 제7권3호
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• pp.56-63
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• 2004

This study was carried out to find out the effect of by-product gypsum(phosphogypsum, PG) application on enhancement of turf quality. For the first experiment, 10 ton $ha^{-1}$ PG was applied to 1m${\times}$10m (width${\times}$length) Plots with 4 replicates on a sloping area of fairway where turf(Zoysia japonica L.) was grown. Both top- and sub-soil samples were collected before and after treatment and were analyzed for pH, EC(e1ectrica1 conductivity), Ca and Mg contents. At the same time when soil samples were collected, specific color difference sensor value(SCDSV) that represented chlorophyll contents, fresh and dry weight of the turf were determined to find out the effect of PG treatment on turf growth. SCDSV of turf from PG treated plots measured at 98 and 147 days after treatment were significantly higher than those from control. Considering higher fresh and dry weight of leaf per unit area from PG treated plots than that from control, it was concluded that the elevated Ca and S level of the PG treated plots resulted in vigorous leaf growth of turf. For the second experiment 2, 5 and 10 ton $ha^{-1}$ PG were applied to 1m${\times}$10m(width${\times}$length) Plots with 3 replicates at a closer location as was used for the first experiment to find out the appropriate PG application rate. Before and after treatment soil and plant samples were collected and were analyzed by the same way as the first experiment. The pH of all the soil samples collected from PG treated plots at 38 days after treatment was lower than that from control. This trend changed as time passed. However, the pH of the soil from 10 ton $ha^{-1}$ PG treated plot was lower than that from control during the whole period of the second experiment. SCDSV, fresh and dry weight of leaf from PG treated plots at all 3 rates were higher than those from control for the second experiment. PG application to turf will be beneficial for both mass consumption of by-product gypsum and enhancement of turf quality.

• 한국식품저장유통학회지
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• 제16권4호
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• pp.579-589
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• 2009

본 연구에서는 소비자의 욕구를 충족시키기 위해서 기본적인 수삼에 대한 소비자 인식 조사를 수행하고 소비실태를 조사함으로써 소비자관점에서의 문제점을 분석하고, 이를 바탕으로 고부가가치 수삼의 제품화 및 산업화의 개선안을 위한 품질요인을 구축하여 소비증진 및 발전방향을 구축하고자 하였다. 수삼에 대한 기호도를 조사한 결과 전 연령층에서 수삼에 대한 선호도가 높았으며 나이가 증가함에 따라 수삼의 선호도가 증가하였다. 수삼은 '삼계탕 등 끓여서'와 '우유와 함께 갈아서' 등의 형태로, 주로 여름과 겨울에 섭취하는 것으로 조사되었고 맛과 향보다는 건강에 도움이 된다는 인식으로 섭취하고 있었다. 수삼의 구입경험에 대한 조사결과, 조사대상자의 66.5%는 구입경험이 '있다'고 응답하였고, 구입 장소로는 대형할인마트를 이용하는 경우가 가장 많았으며, 그 다음으로 산지시장과 재래시장을 고르게 이용하였다. 주요 구입처를 선호하는 이유는 대형할인마트는 '가까워서 편리하기 때문에'라는 응답이 가장 많았으며, 백화점과 산지시장은 70% 이상 많은 소비자들이 '품질을 믿을 수 있어서'라고 응답하는 등 구입처에 따른 선호이유가 차이를 보이지만 대부분이 구매 시 품질을 가장 중요한 고려사항으로 인식하고 있었다. 세척수삼의 구입경험에 대한 조사결과, 먹기 위해 또는 선물하기위해 구입한 경험이 있다고 응답한 소비자는 32.9% 이었으나, 67.1%의 소비자는 구입경험이 없다고 하였다. 수삼 형태에 대한 선호조사에서는 66.8%의 소비자가 '흙 묻은 수삼'을 선택하였으며, 33.2%의 소비자는 '세척 수삼'을 선호한다고 응답하였다. 흙 묻은 수삼의 선호 이유는 '품질을 눈으로 확인하기 쉽기 때문에'라고 하였고, 세척수삼을 선호하는 이유는 '위생적'(40.0%)이고 '보관이 편리해서'(33.2%) 인 것으로 조사되었다. 세척수삼이 판매될 때, 55.0%의 소비자가 구입할 의향이 '있다'라고 응답하였고, '잘 모르겠다'고 응답한 소비자는 27.9%이었다. 수삼을 세척 포장하기 위한 추가비용지불 의향에 대한 조사에서 조금이라도 추가 지불 의향이 있는 소비자는 58.8%였고, 40대 미만의 경우에는 추가지불에 대한 응답이 높았으나, 40대 이상 연령층에서는 동일할 경우 구입하겠다는 의견이 더 높은 것으로 조사되었다.

• 한국윤활학회:학술대회논문집
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• 한국윤활학회 1987년도 제6회 학술강연회초록집
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• pp.28-38
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• 1987

The effective use of rolling oils in the metalworking industry is generally regarded as an art rather than a science. With variations in the quality of some of the raw materials used e.g. vegetable oils, it was often difficult to predict the performance of a product from one batch to another. However, with the increasing use of synthetically produced components and better understanding of the rolling process itself, more consistent and predictable results can now be obtained.

• Asian-Australasian Journal of Animal Sciences
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• 제29권5호
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• pp.702-708
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• 2016

Aloe vera has been used worldwide for pharmaceutical, food, and cosmetic industries due to its wide biological activities. However, quality improvement of low fat meat products and their acceptability with added Aloe vera gel (AVG) is scanty. The aim of this study was to explore the feasibility of using fresh AVG on physicochemical, textural, sensory and nutritive qualities of goat meat nuggets. The products were prepared with 0%, 2.5%, and 5% fresh AVG replacing goat meat and were analyzed for proximate composition, physicochemical and textural properties, fatty acid profile and sensory parameters. Changes in lipid oxidation and microbial growth of nuggets were also evaluated over 9 days of refrigerated storage. The results showed that AVG significantly (p<0.05) decreased the pH value and protein content of meat emulsion and nuggets. Product yield was affected at 5% level of gel. Addition of AVG in the formulation significantly affected the values of texture profile analysis. The AVG reduced the lipid oxidation and microbial growth in nuggets during storage. Sensory panelists preferred nuggets with 2.5% AVG over nuggets with 5% AVG. Therefore, AVG up to 2.5% level could be used for quality improvement in goat meat nuggets without affecting its sensorial, textural and nutritive values.

• 트랜스-
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• 제10권
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• pp.73-113
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• 2021

VR 이미지는 상상력을 불러일으켜 소비자의 태도와 행동에 영향을 미칠 수 있다. 본 연구에서는 현실 기반의 닫힌 루프 3D 영상 (이하 Virtualgraph)을 소개한다. 그리고 이러한 이미지가 모바일 커머스 환경에서 소비자의 연상을 증가시킬 수 있는지, 제품의 시각적 이미지의 높은 원격 현전성이 해당 제품의 구매 의도를 높일 수 있는지를 살펴본다. 이를 위해서 우리는 원격 현전성, 지각된 가치 가격, 지각된 음식의 질, 시각적 이미지의 생생함에 대한 질문지(VVIQ)로 구성된 모델을 개발하였다. 우리는 Virtualgraph 응용 프로그램을 사용하여 실험을 수행한 후 인터뷰와 설문 조사를 수행하였다. 실험, 설문 조사, 인터뷰 결과 우리는 다음과 같은 사항들을 알 수 있었다. 첫째, 사용자는 정지 이미지보다 Virtualgraph로 연상을 더 잘한다. 둘째, 신선 식품의 지각된 품질이 만족스럽다면 증가된 연상은 구매 의도에 영향을 미친다. 셋째, 증가된 연상은 상품을 높게 평가하게 하며, 신선 식품의 지각된 품질이 좋다면 그 평가는 더 높아진다. 인터뷰에서 우리는 Virtualgraph를 사용한 실험 그룹이 구매 의도가 더 높고 제품을 더 비싼 것으로 인식했음을 알 수 있었다. 또한 실험 그룹이 제품 이미지를 더 선명하고 생생하게 인식하였다. 마지막으로 우리는 모바일 쇼핑몰에서 Virtualgraph를 사용할 때의 전략적 시사점에 대해서 논의한다.

• 상하수도학회지
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• 제27권6호
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• pp.771-778
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• 2013

Gas hydrate (GH) process is a new desalination technology, where GH is a non- stoichiometric crystalline inclusion compounds formed by water and a number of gas molecules. Seawater GH is produced in a low temperature and a high pressure condition and they are separated from the concentrated seawater. The drawback of the GH process so far is that salt contents contained in its product does not meet the fresh water quality standard. This means that the GH process is not a standalone process for seawater desalination and it needs the help of other desalting process like reverse osmosis (RO). The objective of this study is to investigate the effect of GH process on energy saving for RO process in seawater desalination. The GH product water quality data, which were obtained from a literature, were used as input data for RO process simulation. The simulation results show that the energy saving effect by the GH process is in a range of 68 % to 81 %, which increases as the salt removal efficiency of the GH process increases. Boron (B) and total dissolved solids (TDS) concentrations of the final product of the hybrid process of GH and RO were also investigated through the RO process simulation to find relavant salt rejection efficiency of the GH process. In conclusion, the salt rejection efficiency of the GH process should exceed at least 78% in order to meet the product water quality standards and to increase the energy saving effect.