• 한국식품영양학회지
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• 제31권5호
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• pp.677-688
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• 2018

The purpose of this study was to examine the extent of purchase of processed foods and the awareness about food label among middle school students. This survey was conducted by involving 350 middle school students in Incheon city, Korea from June 17~19, 2015. Middle school students consumed confectioneries, bread, carbonated drinks, and juices and ice creams once or twice a week at the rate of 53.4, 53.0, 40.6, and 36.9%, respectively. The most frequent place, time, and reason to purchase the processed foods were 'convenience store (36.2%)', 'after school (26.8%)', and 'hunger (77.9%)'. The subjects exhibited top priority (57.0%) on the taste at the time of purchasing the processed foods. Interestingly, the girl-students (44.7%) checked the labels of food more than the boy students (34.0%). The reasons for checking the food labels included acquiring significant information about the shelf life (27.0%), price (18.1%), nutrient (19.1%), and food additives (14.1%). Among the food labeling information, the name of the product (55.7%), the date of manufacture (49.3%) and the content (32.6%) were checked mainly by the subjects. In addition, the major reason for not confirming the food labeling was 'the food label was too small or crude (31.9%)'. It is necessary to inform about the processing methods and ingredients of the processed to middle school students so that they can make the correct choice of processed foods. Development of proper education methods on nutrition for middle school students is necessitated for healthy living.

• 한국산업보건학회지
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• 제18권1호
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• pp.62-71
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• 2008

The use of chemical products to enhance and improve life is a widespread practice worldwide. But alongside the benefits of these products, there is also the potential for adverse effects to people or the environment. As a result, a number of countries or organizations have developed laws or regulations over the years that require information to be prepared and transmitted to those using chemicals, through labels or Material Safety Data Sheets (MSDS). While these existing laws or regulations are similar in many respects, their differences are significant enough to result in different labels or MSDS for the same product in different countries. Given the reality of the extensive global trade in chemicals, and the need to develop national programs to ensure their safe use, transport, and disposal, it was recognized that a Globally harmonization system of classification and labeling of chemicals(GHS) would provide the foundation for such programs. This study offered complementary details of GHS classification criteria adopted in Korea by analyzing the differences in chemical classification system between UN and Korea Ministry of Labor. Also it is proposed that mutual agreement of information DB used is required by comparing classification results of chemicals in Korea, Japan, and EU. We offered the lists of information sources useful for chemical classification.

• 대한핵의학회지
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• 제28권2호
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• pp.167-171
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• 1994

Ethylcystein dimer (ECD) was synthesized by dimerizatlon of L-thiazolidine-4-carboxylic acid in liquid ammania with sodium metal and successive esterification in ethanolic solution of hydrogen chlorde. The purified product was labeled with $^{99m}Tc$ in the presence of sodium glucarate(pH= 5.6) and stannous chloride. Best result was obtained from the preparation con sisting of 0.1mg ECD, $40{\mu}l$ of 0.4M sodium glucarate (pH=5.6), and $20{\mu}g$ of stannous chloride. The labeling efficiency was 90% with previous condition. The labeled $^{99m}Tc$-ECD was stable at least for 3 hours in PBS(pH=7.4) at room temperature. About 10mCi of $^{99m}Tc$-ECD was injected to normal volunteer, and SPECT image of brain was obtained by triple head camera 10 minutes after inection. The image showed similar distribution of radioactivity in brain with that of HMPAO image.

• 한국식품영양학회지
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• 제21권1호
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• pp.28-34
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• 2008

This study was performed in an effort to standardize the quality of fresh-cut products. Here, consumers' perceptions of fresh-cut products were surveyed to determine the quality factors in preparing quality standards for fresh-cut products. According to the surveys, freshness was the most important factor for consumers when choosing fresh-cut products at the market. Secondary indicators of good quality, i.e., "sensory qualities," were determined to be vibrant color, clean taste, nice feel, neat presentation, etc., as well as knowledge of whether it was organically grown. Off-odors decreased a product's marketability. Likewise, the more wilted or brown it appeared, the less a product was desired. From the results, the quality control indices for fresh-cut products were derived as freshness, discoloration, off-flavor, uniformity, prohibition of adulteration by alien substances, packaging and labeling. The quality of fresh-cut lettuce samples was measured against three storage temperatures: $20^{\circ}C,\;10^{\circ}C$ and $5^{\circ}C$. Sensory quality evaluations revealed the following: produce stored at $20^{\circ}C$ lost its marketability in less than one day; produce stored at $10^{\circ}C$ lost its marketability in less than two days; on the other hand, produced stored at $5^{\circ}C$, maintained its marketability for six days. At these respective points, browning started to occur around cut areas, and increased gradually once it began. Vitamin C content decreased with storage time, but storage at $5^{\circ}C$ maintained vitamin content the longest duration. Finally, further examinations were performed on the sensory qualities of fresh-cut lettuce samples at four levels of increased browning. Up to the third level, the product score for marketability was 5.6.

• 한국환경과학회지
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• 제23권8호
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• pp.1455-1462
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• 2014

The purpose of this study is to examine green consumer behavior (green product purchasing behavior and green consumption life) affected by demographical characteristics, and cognition degree of green life (cognition of a green indicator, a green life catalyst system, and environmental problems). It's also to promote strategy and suggest effective activation plans for the vitalization of green consumer behavior. To carry out the task, verification of credibility, multiple regression analysis, two-step cluster analysis, and multinomial logistic analysis were used. The results are as follows: First, the factors that effect green product purchasing behavior were gender, age, cognitive of a green indicator, carbon points system, electricity peak hour system, and seriousness of environmental damage due to lifestyle. Second, the factors that effect green lifestyle were gender, age, carbon grade indicator system, cognition of a green system, and the seriousness of environmental damage due to lifestyle. Third, the comparative group characteristic analysis showed low rates for careless green consumer behavior groups compared to the passive green consumer behavior groups in cognition of a green indicator, green system, and environmental problems. For active green consumer behavior groups, the analysis showed high rates in cognition of carbon grades, eco-labeling, electricity peak hour system, and environmental damage due to lifestyle. In order to encourage green consumer behavior, it's evident that cognition of a green indicator, a green life catalyst system, and environmental problems need to be improved through strategic education and continuous encouragement.

• 동아시아식생활학회지
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• 제24권3호
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• pp.291-300
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• 2014

This study determined the effects of television (TV) advertising restriction of Energy-Dense and Nutrient-Poor Foods on product and promotion activities by food companies producing or selling children's favorite foods. A survey using a selfadministered questionnaire was conducted via on-line or fax by marketers or R&D managers from 108 food companies. The data from 55 respondents (50.9%) were analyzed. Restriction exerted positive effects on food products with respect to compliance with labeling requirements (4.0 out of 5 points) and reinforcement of nutritional contents examination of new products (3.7 out of 5 points). Reformulations of products such as reduction of nutrients like sodium, sugar and fat were also reported. In addition, food companies underwent diverse changes in promotional activities, including modification of package designs and displays in stores, offering free gifts, discounts, etc. In conclusion, restriction of TV food advertising may contribute to improvement of children's food environment by encouraging food companies to make favorable product changes. On the other hand, the results also revealed that food companies adopt diverse marketing channels that are not yet under regulation. Hence, to make policies more effective, regulation needs to be extended from TV to other marketing channels to which children are easily exposed.

• 대한화장품학회지
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• 제47권3호
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• pp.193-203
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• 2021

자외선차단제는 자외선을 차단 및 산란시켜 자외선으로부터 보호하는 제품으로 이제 화장품을 넘어서 생활필수품으로 자리 잡고 있다. 국내 소비자들은 자외선차단제에 아낌없이 투자하며 2019 년 1 인당 선케어 소비액으로 세계 1 위를 차지했다. 자외선차단제는 규제, 원료, 제형, 임상 시험법, 제품 표기 등 다양한 인자들의 영향을 받게 되는데 제품의 수요량이 증가할수록 엄격하게 관리되고 있다. 본 연구에서는 자외선차단지수에 영향을 주는 다양한 인자들에 관하여 조사, 분석하여 세계적 자외선차단제 규제와 국내 규제와의 비교 분석을 실시하였다. 이와 같은 다양한 인자들이 국내 화장품 기업들이 수출 시 장애 요인이 되지 않고 현재보다 국제 경쟁력을 가지고 수출시장이 활성화할 수 있도록 지속적인 조사 등 선제적 대응이 필요할 것이다.

• 대한방사성의약품학회지
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• 제2권2호
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• pp.123-131
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• 2016

Increasing clinical demand for carbon-11 labeled radiopharmaceuticals has triggered technological advances in fields of radiochemistry and automated modules. Even though carbon-11 has a short half-life ($t_{1/2}=20.4min$), the consecutive second production of carbon-11 labeled radiopharmaceutical in one $^{11}C$-synthetic module should be delayed at least over 4 h to avoid the high radiation exposure. We herein aimed to produce two different carbon-11 labeled radiopharmaceuticals ([$^{11}C$]PIB and [$^{11}C$]methionine) by sharing of [$^{11}C$]methylation source in one $^{11}C$-synthetic module. The synthesis of $^{11}C$-labeling reagents ($[^{11}C]CH_3I$ or $[^{11}C]CH_3OTf$) is fully automated using the commercial TRACERlab $FX_{C-pro}$ module and is readily adaptable to $^{11}C$-labeling reactor for [$^{11}C$]PIB as well as another $^{11}C$-labeling apparatus for [$^{11}C$]methionine via the three-way valve. After completing the [$^{11}C$]PIB production, the re-synthesized $[^{11}C]CH_3I$ was passed through the three-way valve connected the polyetheretherketone (PEEK) line and loaded into the C18 Sep-Pak cartridge including the methionine precursor. The labeled product [^${11}C$]methionine was purified by a simple cartridge separation and reformulated into saline. The radiochemical yield of [$^{11}C$]PIB and [$^{11}C$]methionine were $5.3{\pm}0.6%$ and $18.7{\pm}0.8%$ (n.d.c.), respectively, with over 97% of radiochemical purity. The specific activity of [$^{11}C$]PIB was over $110GBq/{\mu}mol$. Total production time of two radiopharmaceuticals needs about 2 h from $1^{st}$ beam irradiation including quality control tests. Final [$^{11}C$]PIB and [$^{11}C$]methionine were satisfied all quality control test standards.

• 한국컴퓨터정보학회논문지
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• 제27권10호
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• pp.11-17
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• 2022

본 논문에서는 증강현실 기술을 적용하여 실내 가구 인테리어를 배치하는데 작업의 효율성을 높일 수 있는 모델을 연구하였다. 현재 증강현실을 적용한 기존 시스템에서는 가구의 이미지를 출력할 때 기업 제품의 규모와 성격 등에 따라 정보가 제한적으로 제공되는 문제가 있다. 이러한 문제점을 해결하기 위해 본 논문에서는 AR 레이블링 알고리즘을 제시하였다. AR 레이블링 알고리즘은 촬영된 이미지에서 특징점을 추출하고 실내 위치 정보를 포함한 데이터베이스를 구축하였다. CNN 기법을 활용하여 실내 공간에서 가구의 위치 데이터를 검출해 학습시키는 방법을 채택하였다. 학습한 결과를 통해 실내 위치와 학습시켜 나타낸 위치와의 오차를 현저히 낮출 수 있다는 것을 확인한다. 또한 가구의 정확한 이미지 추출과 함께 가구에 대한 상세한 정보를 받아 사용자가 원하는 가구들을 증강현실을 통해 쉽게 배치할 수 있도록 하는 연구를 진행하였다. 연구 결과 모델의 정확도와 손실률이 99%, 0.026으로 나타나 신뢰성을 확보하여 본 연구가 유의미함을 알 수 있었다. 본 연구 결과는 AR 레이블의 설계, 구현을 통해 원하는 가구들을 실내에 정확히 배치하여 소비자의 만족도와 구매 욕구를 충족시킬 수 있을 것으로 기대된다.

• 대한환경공학회지
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• 제37권2호
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• pp.87-91
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• 2015

기후변화에 따른 부정적 영향이 가시화되고, 직접적인 경제적 피해가 현실화되면서 온실가스 배출을 줄여 기후변화에 대응하기 위한 범지구적 노력이 가속화되고 있다. 특히 국가의 온실가스 감축에 기여하고 기업의 지구 온난화 방지를 위한 노력을 소비자에게 보여줄 수 있는 효과적인 수단으로 탄소성적표지 제도가 주목을 받고 있으며, 탄소배출량이 상대적으로 적은 저탄소제품에 대한 관심이 점차 증가하고 있는 추세다. 본 연구에서는 제품의 기존 원료물질을 환경부하가 상대적으로 적은 물질로 대체하여 탄소배출량을 줄인 주방세제의 탄소배출량에 대해 전과정평가(LCA) 기법을 활용하여 산출하였다. 전 과정 평가기법은 환경부의 탄소성적표지 작성지침을 적용하여, 사용단계를 제외하는 제조 전 단계와 제조단계 및 폐기단계를 조사하였다. 그리고 친환경 제품 설계 도입이 제품 온실가스 배출에 미치는 영향을 파악하기 위해 주방세제의 주요 원료물질에 대한 변경 전후를 비교하였다. 그 결과 대상 주방세제 주요 원료물질의 온실가스 배출량이 $0.47kgCO_2eq/kg$-제품에서 $0.38kgCO_2eq/kg$-제품으로 개선됨을 알 수 있었으며, 이는 제품 주요 원료물질의 탄소배출량이 약 9.4% 감소되는 것으로 이를 통해 연간 약 916톤의 온실가스가 감축되는 효과가 있음을 확인할 수 있었다.