• 한국지능시스템학회:학술대회논문집
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• 한국퍼지및지능시스템학회 1997년도 춘계학술대회 학술발표 논문집
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• pp.145-150
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• 1997

In this paper is studied a method of fuzzy logic control based on possibly inconsistent if-then rules representing uncertain knowledge or imprecise data. In most cases of practical applications adopting fuzzy if-then rule bases, inconsistent rules have been considered as ill-defined rules and, thus, not allowed to be in the same rule base. Note, however, that, in representing uncertain knowledge by using fuzzy if-then rules, the knowledge sometimes can not be represented in literally consistent if-then rules. In this regard, when it is hard to obtain consistent rule base, we propose the weighted rule base fuzzy logic control depending on output performance using neural network and we will derive the weight update algorithm. Computer simulations show the proposed method has good performance to deal with the inconsistent rule base fuzzy logic control. And we discuss the real application problems.

• 한국식품영양과학회지
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• 제36권4호
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• pp.503-513
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• 2007

The obese population has been increasing worldwide and obesity has become one of the socioeconomic problems. Obesity raises more concerns as more studies regarding its direct and indirect relativity to several diseases such as type II diabetes, hypertension, etc. are published. Since leptin, an important signal in the chronic control of food intake and energy expenditure, was discovered in 1994, there has been a great accumulation of knowledge on fighting obesity by facilitating pharmacological and nutritional strategies on the molecular level of the body weight control system. In particular, evidences are accumulating that particular food components affect our physiological function and gene expressions which are associated with body weight control. In this study, we review the four mechanisms for weight control and antiobesity functional agents such as HCA, L-carnitine, CLA, chitosan, calcium supplements capsaicin contained in red pepper, and oriental herbal mixture. We also describe about the efficacy and working mechanism of these functional agents on the basis of antiobesity mechanisms.

• 한국지능시스템학회:학술대회논문집
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• 한국퍼지및지능시스템학회 1993년도 Fifth International Fuzzy Systems Association World Congress 93
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• pp.1218-1221
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• 1993

The elevator group control systems are the control systems that manage systematically three or more elevators in order to efficiently transport the passingers. In the elevator group control system, the area-weight which determines the load biases of elevators is a control parameter closely related to the system performance. This paper proposes a fuzzy model based method to determine the are-weight. The proposed method uses a two-stage fuzzy inference model which is built by the study of area-weight properties and expert knowledge. The proposed method shows the more desirable results than the conventional method in the simulations that use real traffic data.

• 대한가정학회지
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• 제32권2호
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• pp.193-206
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• 1994

Thinness has become a symbol for beauty acceptance and competence for women in our society especially for young college women. Relatively little is known about characteristics of women who are dissatisfied with their shape or weight and who are interested in performing weight control program. Four hundred college women in Seoul and Kyunggi-Do area were surveyed from November to December 1992 to investigate the relationship between the concern about weight control and various aspects of food related behaviors. The purpose of this research was to investigate the relationship between the weight concerns of college women and their aspects of several eating behaviors. Self-developed questionnaire was used after validity test. The results were as follows: 1) The average height weight and BMI value of subjects were 160$\pm$4.5cm 51.02kg and 19.86$\pm$4.5 respectively. 2) The 49% of subjects were highly concerned about weight control(high interest group) and 39% were moderate concerned(moderate interest group). 3) The average BMI and weight change per year were significantly higher in the high interest group than other groups. 4) The score of nutrition knowledge was also higher in the high interest group, 5) There were no significant differences among groups in the meal frequencies. and amount of nutrients intake. 6) The signs of eating trouble were found in subjects 59.0% of subjects felt feareness about weight gain after consumption of large amount of food. 7) The ratio of CPF was 64:14:22 and nutrient adquacy ratio(NAR) of energy was 0.94 NAR of Fe was 0.84 the other NAR of nutrient over 1.0.

• 한국식생활문화학회지
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• 제10권2호
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• pp.125-132
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• 1995

The purpose of this study was to survey several aspects of food-related knowledge, attitude and behavior of college students. Seven hundred male and female students in Seoul and Kyunggi-do area were randomly selected. And self-administered questionnaires were used. It was consisted of weight concern, nutritional knowledge, meal frequency, preference of snacks and psychological aspects of eating behaviors. The results were as followes: 1. The 66.5% of males and 87.9% of females were concerned about weight control. While 42% of male respondents wanted weight gain and 43% weight loss, most of female respondents wanted to lose weight. 2. The score of nutritional knowledge of males was significantly lower than the score of females (p<0.01). 3. The meal frequency was 3.4 times a day for male students and 3.6 for female students. But males showed higher frequency rates in three regular meals and females showed higher rates in snacking. Both male and female students considered that supper was the most important meal of the day and skipped breakfast frequently. 4. Fruits, beverage and milk were favorite snacking items for college students. But there were some differences in selection of food items by snacking time. Carbonated drinks and coffee were frequently selected by morning male and female snackers. Noodles and cookies were preferred by males and cookies were preferred by females as afternoon snack. Fruits were most often preferred by both males and females in the evening. 5. Physical tiredness and/or psychological factors were observed to influence the amount of food intake. After increase of food intake, male students felt more comfortable than female students who were afraid of their weight gain.

• 대한지역사회영양학회지
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• 제3권2호
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• pp.202-209
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• 1998

This study was conducted to investigate the relationship among pereption of obesity, experience of weight control control and satisfaction with body image in adolescence. The subjects were 221 high school students(91 boys, 130 grils), aged 16.7 years living in a rural area. To determine the perception of obesity, knowledge about obesity, belidfs about obese people, and attitudes towards obese people were measured. The results were as follows: There was high correlation between beliefs about obese people and attitudes toward obese people. When the perception of obesity was compared by sex, girls had significantly more accurate knowledge, stronger beliefs that obesity couldn't be controlled by oneself, the higher the eating disturbance score was. It also appeared that BMI was positively correlated with the positive attitude towards obese people.

• 대한지역사회영양학회지
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• 제12권4호
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• pp.449-461
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• 2007

This study was conducted to investigate the changes of physical and psychological factors of obese children, obesity indices and blood serum levels, food habits and body and self-esteem after a weight control program. The results from this study were as follows: Participants of the study involved 20 boys (48.8%) and 21 girls (51.2%) totaling 41 children. Children's weight control experiences were 90.2% and parents' were 59.5%. Among methods of weight control, children and parents both used exercise and reduced amounts of meals. Sixty-one percent of the children had breakfast almost everyday. The reasons of skipping breakfast were having no time to eat by 44.4% and 50% of children watched TV while having a meal and they considered taste (55.3%) and nutrition value (21.1%) when choosing food. After the weight control program, the children's body fat percent (%) significantly decreased from 40.3% to 35.4% (p < 0.01). There was significant difference of boys and girls' hip circumferences (92.9 cm, 91.4 cm, p < 0.01) after the program but there was only a slight change in their WHR (0.91, 0.92). Girls' waist circumferences significantly decreased from 75.0 cm to 73.0 cm (p < 0.05) and there was a significant increase in HDL-cholesterol, 50.0 (mg/dL) to 55.2 (mg/dL), (p < 0.05). Knowledge levels of obesity significantly increased from 2.5 to 5.1 in the girls' cases (p < 0.001). Nonetheless, attitudes of weight control and food habits score had not changed a lot. After the program, both the boys and girls' body-esteem had significantly increased (p < 0.01) but self-esteem had not changed. These results suggest that a body weight control program must be included in nutrition education, exercise and psychotherapy to improve body and self-esteem of obese children.

• 동아시아식생활학회지
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• 제17권1호
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• pp.11-19
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• 2007

This study was designed to evaluate Saturday nutrition classes for obese elementary students in Chungnam Province. Obesity index, nutrient intake, nutrition knowledge, nutrition attitude, and self-satisfaction of 36 obese elementary students were compared before and after attending nutrition classes every other Saturday for 3 months. The average age, height, weight, body fat, % body fat, and obesity index were 11.9 years, 145.5 cm, 53.3 kg, 24.5 kg, 45.7%, and 32.4%, respectively. Most of the subjects(94.5%) viewed themselves as fat. Sixty-three percent of children were discontent with their body-image. All answered that they have experience with weight control. The major methods of weight control were exercise and reduction of snacks. The mean serum cholesterol, blood glucose, GOT/GPT, and hemoglobin were 177.4 mg/dL, 90.4 mg/dL, 25.8/25.5 IU/L, 14.5 g/dL, respectively. After attending nutrition classes, the daily intakes of energy, plant protein, plant fat, carbohydrate, crude fiber, and cholesterol increased significantly. The scores for nutrition knowledge, nutrition attitude, and self-satisfaction also increased after nutrition classes, but there were no significant differences. Percent body fat decreased significantly after nutrition classes. In conclusion, nutrition education for elementary students is effective for the prevention and control of obesity. Further research is needed to develop a systematic program of nutrition education for obese children.

• 대한영양사협회학술지
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• 제4권1호
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• pp.76-87
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• 1998

The purpose of this study was to examine the nutrition knowledge and attitude of the elderly for developing nutrition education program. The nutrition knowledge test was consisted of nutrition, nutrients, weight control, food safety, and shopping tips by developing the table of specifications. The nutrition attitude test was comprised of seventeen questions for invention, self-efficacy, control, and outcome expectation. A total of 140 elderly living at home responded to both nutrition knowledge and attitude test. According to the results of nutrition knowledge test, the mean was 13.3 at the maximum 18 points and 51.4% respondents got more than 14 points. Significant differences were found with age (p<0.05, $x^2$=21.46), charge of income (p<0.05, $x^2$=8.86) and monthly expenses(p<0.05, $x^2$=22.95). The results of nutrition attitude test showed that the mean value of 40.89 points at the maximum 51 points and 58.6% of respondents rated more than 40.89 points. In exploring the relationship between the demographic variables(sex, age, educational level, and monthly expenses) and for attitude concepts, a significant correlation was found. Correlation among the knowledge for nutrition, nutrients, and the attitudes for nutrition was significant(p<0.05).

• 한국지역사회생활과학회지
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• 제15권2호
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• pp.151-157
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• 2004

This study examined two groups of students Korean Oriental Medicine majors and Food and Nutrition majors and compared their knowledge of clinical nutrition as well as their tendency to follow healthy lifestyles. In all, 204 college juniors and seniors majoring in Food ＆ Nutrition, and 324 sophomores majoring in General Korean Oriental Medicine were given a questionnaire. Overall, knowledge of clinical nutrition(out of twenty questions) was significantly higher among the students majoring in food and nutrition (p<0.01). Specifically, these students obtained a higher score in the questions pertaining to the following topics: nutritional support(p<0.05), the relationship between menopause and blood cholesterol(p＜0.01), the relationship between weight control and carbohydrates(p＜0.01), the relationship between gout and protein(p＜0.10), the relationship between hyperlipidemia and carbohydrates(p＜0.01), the relationship between trans fatty acids and atherosclerosis(p＜0.01), the relationship between blood potassium levels and kidney disease(p<0.01), and the relationship between weight control and diet and water(p＜0.05). Conversely, students studying General Korean Oriental Medicine had a better knowledge of the relationship between malnutrition and the mortality rate and health complications(p＜0.01). The questions relating to a healthy diet and lifestyle indicated that students majoring in Food and Nutrition had higher incidences of diet irregularity and a higher missing rate (p<0.01); they were more interested in calorie content and nutrients in their diet(p＜0.05); and they were more likely to study about nutritional knowledge during their leisure time (p＜0.01). The results also indicated, however, Korean Oriental Medicine students consumed proportionally more vegetables(p<0.05); and they were more likely to take the stairs than the elevator(p＜0.01).