• 한국가정과학회지
• /
• 제6권1호
• /
• pp.45-56
• /
• 2003

The purpose of this study was to compare nutrient intake and food consumption by food frequency according to the obesity index of women college student in Kunsan. The subjects were 251 women college students who were randomly selected from Kunsan national university. Subjects were assigned to one of the following group based on BMI : underweight, normal weight and overweight. Nutrient intake and food consumption by food frequency were evaluated based on questionnaires and 24 hour recall method. The results were as follows. %RDA of calcium, iron and zinc of obese group were more than the underweight group(p＜0.05). %Fat was significantly correlated with the daily intakes of protein and vitamin E(p＜0.05). %Fat was significantly correlated with %RDA of energy, protein, vitamin E, vitamin B$_{6}$. RBW was significantly correlated with %RDA of iron. BMI was significantly correlated with %RDA of energy, calcium, phosphorus. The foods frequently consumed among students were cooked rice and gimchi. The frequencies of fish and mushroom were correlated with food behavior scores(p＜0.01). The frequencies of carbonated beverage(p＜0.01), hamburger & piazza, deep fried foods(p＜0.01), soybean curd fried fish cake(p(0.05) were correlated with nutritional knowledge scores.

• 한국환경보건학회지
• /
• 제36권1호
• /
• pp.14-19
• /
• 2010

Based on a nationwide survey of the consumption of oriental medicine by the Korean population, we estimated the potential risk from the inadvertent ingestion of heavy metals such as Pb, Hg, As, and Cd as a result such consumption. Compared to the provisional daily intake limit, heavy metal intake through oriental medicine resulted in hazard quotients of less than one. The upper $90^{th}$ percentile exposure estimates for each metal also showed insignificant risk. In relation to inorganic forms that are known carcinogens the excess cancer risk was less than $1{\times}10^7$. Based on the results of this study exposure to Pb, Hg, As, or Cd through oriental medicine intake appeared to be negligible and would not cause a significant impact on health.

• 한국치위생학회지
• /
• 제15권5호
• /
• pp.813-821
• /
• 2015

Objectives: The purpose of the study was to investigate the relationship between health behavior and oral symptoms in Korean adolescents. Methods: The subjects were 72,060 adolescents who were selected from the web-based survey of the 10th (2014) Korean Youth Risk Behavior of Korean Center for Disease Control. Data were analyzed by PASW statistics 18.0. A web-based self-reported questionnaire was completed by 74,167 middle and high school students. The subjects consisted of 36,470 boy students (52.2%) and 35,590 girl students (47.8%) from 400 middle schools and 400 high schools. Results: Multiple logistic regression analysis revealed that experience of oral symptoms were related with sex, age, academic achievement, economic status, alcohol drinking, moderate physical activity, muscular strength exercises, walking, fruit consumption, milk consumption, fast food consumption, snack consumption, daily tooth brushing frequency, use of fluoride toothpaste, school based oral health education, dental sealant and dental scaling. Conclusions: There were close relationship between heath behavior, oral health behavior, and experience of oral symptoms. To improve the health promotion for the adolescents, oral health program development and primary prevention strategy must be established.

• 한국식생활문화학회지
• /
• 제30권5호
• /
• pp.576-586
• /
• 2015

This study compared and analyzed the consumption and amount of red pepper used in Baechu Kimchi (cabbage Kimchi) especially the amounts used in Kimchi recipes with respect to the passage of time from the 1930s to the 2010s. In this analysis, 78 recipes for cabbage Kimchi were taken from books, daily newspapers and magazines from 1930 to 2014 and collected for comparison. The result of the study showed that the consumption and inclusion of dried red pepper powder in cabbage Kimchi increased. The average consumption of red pepper in the 1930s was 5.75 g, and the number went up to 8.83 g in the 1940s, to 13.8 g in the 1950s, and to 20.25 g in the 1960s. The amount dramatically increased from 1970 to 1980 (53.37 g) and kept rising until 2010 (71.26 g). The average consumption of red pepper in cabbage Kimchi in the 2010s is about 12 times that of the 1930s.

• 설비공학논문집
• /
• 제25권10호
• /
• pp.540-547
• /
• 2013

We experimented with the energy saving effect of applying a multiplex heat pump system and suggests a dissemination plan for new and existing educational facilities. The development and dissemination of a new system could reduce energy consumption by up to 57%, and help solve environmental issues. Experimental performance evaluated in the kindergarten to analyze the energy saving effect of the cooling and heating system. The average daily COP of the cooling and heating period in the field test was 3.79. Our results showed that the annual energy consumption was reduced, and proved that the multiplex heat pump system is effective in reducing energy consumption.

• 응용통계연구
• /
• 제32권2호
• /
• pp.319-330
• /
• 2019

과거의 전력소모량을 분석하여 미래의 전력소모량을 예측하는 것은 에너지 계획과 정책 결정에 있어 많은 이점을 가져다준다. 기계학습은 최근 전력소모량을 예측하는 분석 방법으로 많이 사용하고 있다. 그중 앙상블 학습은 모형의 과적합 현상을 방지하고 분산을 줄여 예측의 정확성을 높이는 방법으로 알려져 있다. 하지만 일별 데이터에 앙상블 학습을 적용했을 때 분석 방법의 특성으로 인해 피크를 잘 나타내지 못하고 중심값으로 예측하는 단점을 보였다. 본 연구에서는 앙상블 학습 전에 온도 변수와의 상관성을 고려하여 선형모형으로 적합함으로써 앙상블 학습의 단점을 보완한다. 그리고 9개의 모형을 비교한 결과 온도 변수를 선형모형으로 적합하고 랜덤포레스트를 사용한 모형이 결과가 가장 좋음을 보여준다.

• Integrative Medicine Research
• /
• 제3권1호
• /
• pp.4-10
• /
• 2014

Green tea and coffee consumption have been widely popular worldwide. These beverages contain caffeine to activate the central nervous system by adenosine receptor blockade, and due to the caffeine, addiction or tolerance may occur. In addition to this caffeine effect, green tea and coffee consumption have always been at the center of discussions about human health, disease, and longevity. In particular, green tea catechins are involved in many biological activities such as antioxidation and modulation of various cellular lipid and proteins. Thus, they are beneficial against degenerative diseases, including obesity, cancer, cardiovascular diseases, and various inflammatory diseases. Some reports also suggest that daily consumption of tea catechins may help in controlling type 2 diabetes. However, other studies have reported that chronic consumption of green tea may result in hepatic failure, neuronal damage, and exacerbation of diabetes, suggesting that interindividual variations in the green tea effect are large. This review will focus on the effect of green tea catechins extracted from the Camellia sinensis plant on type 2 diabetes and obesity, and the possible mechanistic explanation for the experimental results mainly from our laboratory. It is hoped that green tea can be consumed in a suitable manner as a supplement to prevent the development of type 2 diabetes and obesity.

• 한국의류학회지
• /
• 제44권5호
• /
• pp.1019-1035
• /
• 2020

This study examines the millennial generation, who express themselves and share information on social media after experiencing constantly changing 'hot places' (places of interest) in contemporary cities, with the goal of analyzing space consumption behaviors. Data were collected via an Instagram crawler application developed with Python 3.4 administered to 19,262 posts using the term 'hot places' from November 1 and December 15, 2019. Issues were derived from a text mining technique using Textom 2.0; in addition, semantic network analysis using Ucinet6 and the NetDraw program were also conducted. The results are as follows. First, a frequency analysis of keywords for hot places indicated words frequently found in nouns were related to food, local names, SNS and timing. Words related to positive emotions felt in experience, and words related to behavior in hot places appeared in predicate. Based on importance, communication is the most important keyword and influenced all issues. Second, the results of visualization of semantic network analysis revealed four categories in the scope of the definition of "hot place": (1) culinary exploration, (2) atmosphere of cafés, (3) happy daily life of 'me' expressed in images, (4) emotional photos.

• 한국식품영양과학회지
• /
• 제43권4호
• /
• pp.604-611
• /
• 2014

본 연구는 우리나라 국민의 아스파탐과 아세설팜 칼륨의 섭취 안전성을 평가하기 위하여 수행되었다. 가공식품에 함유된 아스파탐 함량을 분석한 결과 총 247건의 시료에서 아스파탐이 가장 많이 검출된 품목은 과자류로 14건이었으며, 그 다음으로는 주류가 5건, 발효유가 4건이었다. 각 식품별 아스파탐의 평균 함량은 탄산음료가 87.70 mg/kg으로 가장 높았고, 약주가 85.71 mg/kg으로 그 다음이었다. 아세설팜 칼륨은 총 305건의 시료 중 껌류의 평균 함량이 95.70 mg/kg으로 가장 높게 나타났으며, 이어서 캔디류가 51.1 mg/kg, 과자류가 34.83 mg/kg으로 나타났다. 아스파탐의 국민 평균 섭취량은 58.37 ${\mu}g/kg$ bw/day로 나타나 JECFA에서 설정한 ADI의 0.15% 수준이었다. 아스파탐 섭취에 가장 많이 기여한 식품은 탄산음료, 발효유, 탁주, 과자류 순이었고, 연령별로는 13~19세 그룹의 섭취량이 136.04 ${\mu}g/kg$ bw/day(ADI의 0.34%)로 가장 높았는데, 이는 10대 청소년의 탄산음료 섭취량이 가장 높기 때문으로 사료된다. 식품을 통한 아세설팜 칼륨의 국민평균 섭취량은 14.23 ${\mu}g/kg$ bw/day로 JECFA에서 설정한 ADI 대비 0.09% 수준으로 평가되었다. 아세설팜 칼륨 섭취에 기여한 식품은 탁주, 과자류, 음료류 순으로, 이 중 탁주의 섭취량이 0.32 mg/person/day로 가장 높았다. 연령별로는 1~2세와 3~6세의 체중당 아세설팜 칼륨 섭취량이 가장 높게 나타나 각각 ADI 대비 0.28%, 0.23%로 나타났고, 이 연령 그룹의 아세설팜 칼륨 섭취에 가장 많이 기여한 식품은 과자류였다. 아스파탐과 아세설팜 칼륨 섭취자 그룹 중 95th percentile 섭취자의 섭취량은 JECFA에서 설정한 ADI 대비 각각 6.28%, 5.08% 수준으로, 결론적으로 한국인의 아스파탐과 아세설팜 칼륨의 섭취량은 모든 연령대와 상위섭취량 집단에서 모두 ADI 대비 7% 미만으로 안전한 수준이었다.

• Asian Pacific Journal of Cancer Prevention
• /
• 제17권11호
• /
• pp.4939-4944
• /
• 2016

Background: An upward trend has been noted for the incidence of prostate cancer (PCa) in Vietnam, but information is limited on modifiable factors associated with this form of cancer. This case-control study was conducted to ascertain any relationship between habitual tea consumption and PCa risk. Materials and Methods: Two hundred and fifty-three incident patients with histologically confirmed PCa and 419 (340 community-based and 79 hospital-based) controls, matched by age, were recruited in Ho Chi Minh City during 2013-2015. Information on frequency, quantity and duration of tea consumption, together with demographics, habitual diet and lifestyle characteristics, was obtained by direct interviews using a validated questionnaire. Logistic regression analyses were performed to assess associations between tea consumption variables and PCa risk. Results: The control subjects reported higher tea consumption levels in terms of cumulative exposure, frequency and quantity of tea drank than the PCa patients. After accounting for confounding factors, increasing tea consumption was found to be associated with reduced risk of PCa. The adjusted odds ratios (95% confidence intervals) were 0.52 (95% CI 0.35-0.79) and 0.30 (95% CI 0.18-0.48) for participants drinking 100-500 ml/day and > 500 ml/day, respectively, relative to those drinking < 100 ml/day. Significant inverse dose-response relationships were also observed for years of drinking and number of cups consumed daily (P <0.01). Conclusion: Habitual tea consumption is associated with a reduced risk of PCa in Vietnamese men.