• Journal of the Korean Data and Information Science Society
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• 제17권3호
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• pp.991-997
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• 2006

Recently, Liu (2005) proposed a special type of weighting function under a given preference index level with the minimal variability similar to the minimal variability OWA operator weights problem proposed by Fuller and Majlender (2003). He solved this problem using a result of classical optimal control theory. In this note, we give a direct elementary proof of this problem without using any known results.

• Nutrition Research and Practice
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• 제6권6호
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• pp.534-541
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• 2012

This study examined salty taste acuity and salty taste preference and sodium intake in relation to zinc nutritional status in 2 rural populations in Korea. And we also examined the main food contributors of their sodium intakes. We enrolled 218 adults (66 men and 152 women) from the Kangneung and Samcheok regions in Korea's Kangwon province in our study conducted from December 2011 to February 2012. Participants from each region were divided into 3 groups based on their serum zinc level (T1: lowest, T2: intermediate, T3: highest). We compared the salty taste acuity and preference, Na index (Dish Frequency Questionnaire for estimation of habitual sodium intake), blood pressure, and intakes of nutrients including sodium by 3 groups of serum zinc level. The results were as follows: a higher serum zinc level indicated a lower sodium intake and Na index (P<0.05). The salty taste acuity was considerably higher for participants from the Kangneung region than those from the Samcheok region (P<0.05). And the serum zinc level was significantly higher in participants from the Kangneung region than those from the Samcheok region (P<0.05). We further divided the participants into 2 groups: those who consumed more zinc than the recommended intake (RI) and the others. We compared salty taste acuity and salty taste preference in the 2 groups. The salty taste threshold and palatable salty taste concentrations were lower for the group with a zinc intake above RI than for the group with zinc intake below the RI. However, the difference was not significant. This study confirms that taste function differs depending on zinc nutritional status. In future, it is required to a large-scale, long-term, prospective study on the correlation between zinc intake, serum zinc levels, and taste perception function and blood pressure.

• 보건행정학회지
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• 제17권1호
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• pp.50-74
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• 2007

The purpose of this study was to identify a determent of mastery approach goal and performance approach goal using a basic concept of goal orientations and goal setting theory, and to evaluate a preference of goal achievement index as a balance score card (BSC). The study model proposed had a adoptable level of goodness of fit index(.94) and root mean square residual(.08). The meditating variable, goal contribution, totally mediated the impact of goal commitment, Y-theory human behavior, and self-efficacy but organizational resource contribution for pursuing goal orientation. Moreover, goal contribution significantly determined mastery approach goal(p<.01) and performance approach goal(.05). In standardized effects, the most powerful antecedent of mastery approach goal and performance approach goal were in order of organizational resource contribution(.27/.28), goal contribution(.21/.17), self-efficacy(.07/.06), and Y -theory human behavior and goal commitment(.05/.05), respectively. Moreover, goal contribution had a more powerful impact on mastery approach goal(.21) rather than performance approach goal(.17). In the preference of BSC, all job types preferred learning and growth index in first. In the second preference, medical doctors and pharmacists chose financial results, nurses customer service, and office managers internal processes. Each job type reflected its' own preferred BSC index to that of the other job types. In comparing a preference of four BSC index of each own job type, it was statistically different at p<.001. In conclusion, one who emphasize organizational goal contribution in pursuing goal orientation has a more strong orientation toward mastery approach goal rather than performance approach goal. A hospital should overcome and harmonize the different preferences of four BSC index since the differences might cause organizational conflicts among job types with having each unique professional norm.

• 한국주거학회논문집
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• 제15권3호
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• pp.53-62
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• 2004

Recently the landscape of housing has been emphasized. This trend seems to reflect the negative aspects of housing landscape in urban area. Throughout the analysis on the various visual density index, the following findings were obtained; 1) Elevation blockage ratio(EBR) was permitted differently according to the types of housing blocks, and the preference of block layout was different to the location of site. 2) EBR regulation level was acceptable. But 40m level of general area should be stepped up to the 35m level. 3) The correlation between the floor area ratio(FAR) and the EBR was not high. Therefore it is reasonable to regulate the EBR to the location. 4) Elevation coverage ratio(ECR) was highly correlated with the FAR. It means that FAR can substitute for the ECR, and ECR should be regulated to the level of FAR.

• 경영과학
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• 제30권1호
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• pp.167-181
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• 2013

We investigate the dynamic asset allocation problem under inflation risk when the wealth of an investor is constrained with minimum requirements. To capture the investor's risk preference, the CRRA utility function is considered and he maximizes his expected utility at predetermined date of the refund by participation in the financial market. The financial market is supposed to consist of three kinds of financial instruments which are a risk free asset, a risky asset, and an index bond. The role of an index bond is managing inflation risk represented by price process. The optimal wealth and the optimal asset allocation are derived explicitly by using the method to get the European call option pricing formula. From the numerical results, it is confirmed that the investments on index bond is high when the investor's wealth level is low. However, as his wealth increases, the investments on index bond decreases and he invests on risky asset more. Furthermore, the minimum wealth constraint induces lower investment on risky asset but the effect of the constraints is reduced as the wealth level increases.

• 한국의류학회지
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• 제8권2호
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• pp.11-17
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• 1984

The purpose of this study was to explore the characteristics of Fashion leadership in relation to social partipation, mass communication, and socioeconomic level among married women living in Seoul. Fashion opinion leadership was measured by Schrank Fashion Opinion Leadership Inventory. Fashion Preference Scale was designed to determinefashion innovativeness. Social parti-cipationana mass communication were assessed by selected items from the inventory of Summer and Kim. Hollingshead's two-factor index and weighting system was selected to assess socioeconomic level. The questionnaires were adminstered to a random sample of married women in Seoul. The date for 214 respondents were analyzed by Pearson correlation, analysis of variance, and t-teat. The results were as followers : 1) Fashion opinion leadership was significantly related to fashion preference. 2) Fashion leadership was significantly related to social participation, mass communication, socioeconomic level. 3) There was a significant difference between fashion leadership and age. 4) Women's occupation had little influence on fashion opinion leadership as well as fashion preference.

• 동아시아식생활학회지
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• 제5권1호
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• pp.53-66
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• 1995

The purpose of this research is to investigate how obesity and eating behavior are related to the concentration of serum insulin and lipids and blood pressure of middle-aged men The sample for this study utilizes 240 middle-aged men between th4 age of 40 and 60 living in the city of Kumi. Through a process of anthropometry and categorization by relative body weight, the sample is devide into two groups, the obese group (51 men) and the normal group (129 men). The results of the study were as follows : 1111111. The men from the obese group with the exception of height, subs-capular/triceps skinfold girth ratio(STR) had a higher level of body mass index (BMI), waist and hip circumference, waist/hip girth ratio(WHR), subscapular and triceps skinfold thickness than the normal group (P=0.0001). 2. In comparing the serum insulin and lipids between the obese and normal group, the obese group had a higher level of insulin and triglyceride (P=0.016, P=0.050) but a lower concentration of HDL-cholesterol and HDL-cholesterol/total cholesterol (P=0.034, P=0.004). Also, the obese group had a higher level of systolic and diastolic blood pressure (P=0.001, P=0.029). When looking at the relationship between the serum insulin and lipids and anthropometric measurements, the relationship between waist/hip girth ratio(THR), the concentration of fasting serum insulin and lipids were stronger than the obesity index, body mass index(BMI). 3. Men who exercised regularly had a lower total cholesterol and systolic blood pressure 9P=0.049, P=0.041), and a higher level of HDL-cholesterol/total cholesterol (P=0.004). There was no observable relationship between the food habit score, the preference for fiber foods, and the concentration of serum lipids. Also, the concentration of serum lipids had no apparent effect on the preference for salty, sweet, and greasy foods.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2005년도 추계학술대회논문집
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• pp.427-430
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• 2005

The quality of various noises generated in the refrigerator is one of the important factors in deciding quality of the product. The main focus of sound control design has been shifted from reduction of sound level to improvement of sound duality for customer's preference. Up to date the purpose of noise control is the minimization of noise level. However despite of gradual decrease of noise level, occasionally the perceptional quality of noise has not been improved. In this paper, the relation between subjective and objective evaluation of sound quality has established and sound quality index is developed using ANN for evaluation of refrigerator's noise of both the starting noise and the stable running noise of compressor. To verify the usefulness of the index, the results in this paper have been compared with those surveyed by Consumer Union in USA.

• 한국지역사회생활과학회지
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• 제12권1호
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• pp.1-13
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• 2001

The purpose of this study was to investigate of gender difference on dietary behavior and food preferences of elementary school children. This survey was carried out through questionnaire method for 274 male and 257 female of the 6th grade elementary school children in Anyang city. By calculating WLI(weight-length index), 26.9% of students were overweight, and 26.2% were under-weight. Average height of male was 147.9cm and that of female was 148.9cm, and their weight was 40.9 kg and 39.2kg respectively. The average BMI(body mass index) was 18.1 kg/㎡. The self-recognition of health status was different according to gender, male recognized better health status than female. There was no significant difference of parents´ education level and the occupation depending on gender. The 56.7% of students had regularly for breakfast, and 60% for lunch and 42.9% for dinner. The female students had irregular meal time more frequently than male did for dinner(p<0.01). They skipped more breakfast(7.0%) than other meals. Reasons of skipping meal were lack of time to eat(50%), boring side-dishes(17.0%) etc. For snacks, choice depends on taste (55.4%), and they bought at the shop nearby (36.5%) and convenience shop(29.9%). They had a meal outside once a month(42.9%), and selected Korean traditional food(52.5%). For almost all of foods male students´ preference showed higher than female except cucumber. Low score of preference was obtained in such as salted vegetables, soy pastes, and fish(shellfish) groups raw or fermented. The preference level was a little higher in such as vegetables & kimchi group and pot stews. The results assert the importance of nutrition education for the students in puberty. It is necessary breakfast should be taken regularly, and therefore we should carry out the education of importance of nutrition and health for children considering the dietary behavior and food preference for balanced diet.

• 한국환경생태학회지
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• 제30권3호
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• pp.434-442
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• 2016

스트레스 수준에 따라 산림치유 프로그램의 선호도에 차이가 있는지를 살펴 보았다. 편의표본추출(convenience sampling)방법을 이용하여 성인 남 여를 대상으로 산림치유 프로그램 선호도와 사회 심리적 스트레스 척도에 관한 설문을 실시하였다. 사회 심리적 스트레스 척도(PWI-SF: Psycho social Well-being Index Short Form)를 근거로 성인 620명을 건강군, 잠재적 스트레스군, 고위험군으로 분류하였다. 자료분석은 SPSS 21.0 프로그램을 사용하였다. 스트레스 수준에 따른 세 군 사이의 산림치유 프로그램 선호도 차이를 알아보기 위해 일원 분산분석(one-way ANOVA)을 이용하였다. 스트레스 수준에 따라 산림치유 프로그램 선호도(호흡법 호흡체조, 자유롭게 숲속걷기, 물 흐르는 소리 듣기, 카운슬링 상담 등 전문가 코칭, 스트레스 관련 강의, 대인관계 커뮤니케이션 강의, 경관보기, 숲 해설 듣기, 삼림욕 풍욕 일광욕)에 있어서 차이가 있었다. 고위험 스트레스군은 카운슬링 상담 등 전문가 코칭, 스트레스 관련 강의, 대인관계 커뮤니케이션 강의 등의 인지적인 접근의 프로그램을, 건강군은 호흡법 호흡체조, 자유롭게 숲속걷기(신발착용), 물 흐르는 소리 듣기, 경관보기, 삼림욕 풍욕 일광욕 등의 오감을 활용하는 감성적인 접근의 프로그램을 각각 상대적으로 높게 선호하는 것으로 나타났다. 잠재적 스트레스군에 있어서는 두드러진 선호도가 발견되지 않았다. 본 연구 결과가 스트레스 정도에 따른 산림치유 프로그램을 개발을 위한 기초자료로 활용되기를 기대한다.