• Journal of the Institute of Electronics Engineers of Korea CI
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• v.43 no.5 s.311
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• pp.1-7
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• 2006

This paper presents experimental instruction-level current consumption model for low power microcontroller ATmega128. The accessibility of instruction for internal memory decides power consumption of the microcontroller as much as 17% of difference between access instruction and non-access instruction. The power consumption for the given program will be increased in the proportional to the ratio of memory access instruction and lower level memory access in the hierarchy. Throughout the current consumption model, the power consumption can be predicted and optimized in the direction of reducing the frequency memory access. Also, the various optimization methods are introduced in terms of software and hardware viewpoints.

• The Korean Journal of Community Living Science
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• v.23 no.4
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• pp.509-522
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• 2012

The purpose of this study was to explore the effects of adolescent consumers' attitudes toward money and conspicuous consumption on unethical consumption behavior in commercial transactions. The main survey was conducted targeting 290 middle and high school students. As a result of this research, first in the case of adolescent's attitudes toward money, the symbol for happiness and success was 3.11 and the means of control was 1.77 respectively. The level of conspicuous consumption behavior was 2.75 and the level of unethical consumption behavior scored as passive unethical consumption behavior was 1.38 while the active unethical consumption behavior was 2.10. Second, in the case of the attitude toward money as a means of control, it differentiated according to the level of living and the amount of allowance. Conspicuous consumption behavior differentiated according to the amount of allowance and the father's education. Active unethical consumption behavior showed a difference according to the amount of allowance and the father's education. Multiple linear regression analysis conducted to identify relative effects of the variables that affect unethical consumption behavior, in case of passive unethical consumption behavior, showed that conspicuous consumption(${\beta}$=.23, p<.01) and attitudes toward money as a means of control(${\beta}$=.29, p<.001) with an explanatory power of 18%. In the case of active unethical consumption behavior, showed that sex(${\beta}$=.16, p<.05), father's education(${\beta}$=-.15, p<.05), attitudes toward money as means of control(${\beta}$=.18, p<.5) and conspicuous consumption(${\beta}$=.36, p<.001) with an explanatory power of 26%.

• International Journal of Human Ecology
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• v.14 no.2
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• pp.69-78
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• 2013

This study analyzed the changes in household consumption expenditure of retired households using Korean panel data. We compared the pre and post retirement-consumption levels in different consumption categories using panel data. Paired t-test showed that changes in the consumption patterns before and after retirement were not significant except for the households in the third net worth quartile. Analyzing the effect of retirement on the level of household consumption expenditure, this study found that the effect of retirement was not significant in overall, although retirement had a negative effect on the level of consumption expenditure among households in the lowest net worth distribution. Understanding changes in consumption patterns of retiring households provides important information to design social security policies.

• Human Ecology Research
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• v.53 no.5
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• pp.489-502
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• 2015

This study identifies the relation between recognition relatively deprivation and consumption patterns. The data used were the seventh Korea Welfare Panel Study (KOWEPS). The final sample of 1,597 households was selected based on several sampling steps standard weights suggested by KOWEPS were applied. The final sample was subdivided into household recognizing relatively deprivation (51.7%) and non-household recognizing relatively deprivation (48.3%) per level of subjective income and objective income. We derived six consumption patterns from the cluster analysis as per consumption ratio: transportation dominant consumption pattern, essential consumption pattern, other dominant consumption pattern, care attention consumption pattern, private transfer consumption pattern, and education dominant consumption pattern. The results of this study are as follows. The analysis of the determinants of recognizing relatively deprivation in regards to question one found that the household was likely to be relatively deprived when: the head of a household was older, a household had a dual income, children and more total assets then those assessed 1 year ago compared to household living conditions, result of comparing the consumption patterns difference between household recognizing relatively deprivation and non-household recognizing relatively deprivation indicated that household recognizing relatively deprivation was more likely to belong to the transportation dominant consumption pattern, other dominant consumption pattern, and private transfer consumption pattern. The multinomial logistic analysis conducted to understand the determinants affecting the consumption patterns of household recognizing relatively deprivation indicated differences in demographic characteristics, household-related variables, financial variables and perception of economic conditions.

• Journal of agricultural medicine and community health
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• v.10 no.1
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• pp.5-15
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• 1985

It has been a long tradition in the field of nutrition that the degree of malnutrition in a community used to be estimated by the degree of the adequacy of nutrients consumption in the households. The adequacy of nutrient consumption in the households then used to be applied to estimate the degree of malnutrition of the children. Such a practice is theoretically acceptable in the community where the food sharing within the household is individual serving style such as in European countries. However, the community where the dietary habit in the household is communal such as in Korea, the estimation of single serving portion from household consumption is quite uncertain. Because of such an uncertainty this study is intended to test the validity of the household food consumption level as an indication of nutritional status of the children in the rural farm households in Korea. The date from the household consumption survey in 1982 by the Korean Rural Nutrition Institute has been used for the analysis of food consumption levels of the households. The survey on the nutritional status of children of 127 preschool children from 78 farm households, has been conducted during May 1983. The nutritional status of the children has been directly measured by weight, height, skinfold thickness, haemoglobin, haematocrit and morbidity of influenza and diarrhoea. The analysis has been conducted to distinguish the differences in prevalence of malnutrition of children from the estimated of household consumption and that of from the direct measurement of nutritional status of children. The results show that the degree of malnutrition of the estimated by the household consumption level has not related with the prevalence of malnutrition by the direct measures of nutritional status of the children. Therefore, the validity of household consumption level as an indication of nutrional status in a same household is quite uncertain for the population studied.

• Journal of the Korean Society of Food Science and Nutrition
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• v.28 no.5
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• pp.1144-1150
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• 1999

A nutrition survey regarding daily kimchi consumption and its hypolipidemic effect were carried out with 102 of healthy Korean adult men aged between 40 to 64 years old who visited hospital for physical examination. The physical and biochemical parameters of blood were examined as well as food record, preferences for taste, personal life habit, and family history of disease. Data were expressed as quartile according to kimchi consumption. The average daily kimchi consumption for 1st, 2nd, 3rd, and 4th per centile group were 68, 118, 208, and 383g, respectively. The intakes of dietary fiber and Ca were found to be increased as kimchi intake increased(p<0.05). The kimchi consumption level was selected as the determining factor for HDL C level analyzed by stepwise multiple regression(p=0.09). When correlation coefficient between kimchi consumption and other parameters were analyzed, kimchi consumption was positively correlated with HDL C and negatively correlated with LDL C(p<0.05). The preference for hot taste was negatively correlated with systolic blood presure. It seems that kimchi consumption is beneficial to elevate HDL C and lower LDL C level.

• Journal of the Korean Society of Food Culture
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• v.23 no.4
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• pp.448-454
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• 2008

The principal objective of this study was to assess the effects of food involvement moderating the relationship between food choice motives, including health concerns, weight control and ethical concern, and fruit consumption. A total of 290 questionnaires were completed. Moderated regression analysis was utilized to assess the relationships among variables. The results of the study showed that the results of data analysis also indicated good model fit. The direct effects of health concerns on fruit consumption were statistically significant in Models 1 and 2. However, the direct effects of ethical concern on fruit consumption were statistically significant in Model 3. As had been expected, the interaction of ethical concerns and food involvement exerted a significant effect on fruit consumption in Model 3. However, the interaction of health concern and food involvement, as well as weight control and food involvement exerted no significant effects on fruit consumption. Moreover, ethical concerns about fruit consumption exerted a significant negative effect at the low level and a positive effect at the high level of food involvement, except in cases in which the level of food involvement was medium. The results of this study revealed that fruit marketers should attach importance to the interaction effect of food involvement in order to better understand the elements of market demand and customer loyalty.

• Journal of Korea Planning Association
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• v.53 no.6
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• pp.101-116
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• 2018

Paying an attention to the issue of energy poverty of low-income households and ensuing regressivity of energy consumption, this study empirically analyzes the effects of both household and housing characteristics on heating energy consumption in an integrated way and identifies their causal structure based on the 2016 Korea Housing Survey data provided by the Korean government. Multiple regression analysis shows that household income and deteriorated level of housing, such as age and degree of cracks have positive effects and floor area of housing has a negative effect on the heating energy consumption per unit area of housing (HECPUH). Path analyses further reveal that the direct effect of household income on HECPUH is offset by the indirect effects that are mediated by deteriorated level and floor area of housing, making the total effect statistically insignificant. As a result, there is no significant difference in HECPUH across all income strata, implying that low-income (high-income) households pay more (less) heating costs relative to their income level, since they reside in the houses with relatively low (high) energy efficiency. To deal with this regressive causal structure of energy consumption, a policy option is recommended to improve energy efficiency of low-income housing through the government assistance in its maintenance and repair.

• Journal of Families and Better Life
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• v.16 no.2
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• pp.1-10
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• 1998

This study purpose to know the degree of adolescent consumer's conspicuous consumption how difference do adolescent consumers' conspicuous consumption have by socio demographic variables socio-psychological variables consumer ability. Therefore we suggest the adolescent consumer's sound consumption to consumer education. To approach to above purpose the research question are as the followings. 1) The average level of conspicuous consumption a little low median point. This implies that comsumer education is necessary for the adolescent consumer in order to reduce the level of conspicuous consumption. 2) Theadolescent consumers' consumption differs significantly according to the sex(p<0.05) monthly mean income of family(P<0.01) degree of taking in massmedia (P<0.01) subjective status on oneself(P<0.01) consumer socialization(P<0.01) 3) According to the results of the regression analysis examining the relative influences of variables affecting for conspicuous consumption the rela ive importance of the variables ; degree of taking in massmedia sex consumer knowledge communication with peers consumer attitude and the amount of allowance.

• Journal of Families and Better Life
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• v.16 no.4
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• pp.183-196
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• 1998

The purpose of this study was to investigate the discretionary consumption expenditure of Korean urban housewives and the factors contributing to the discretionary consumption expenditure. 535 housewives living in Seoul and Gyungki district were selected and frequencies percentile means standard deviation and multiple-regression analysis were utilized. The results of this study were as follows: First the monthly discretionary consumption expenditure of Korean urban housewives was 592,500won. Particularly the level of clothing expenditure for urban housewives of 135,700won was found to be the highest expenditure among other discretionary expenditures while the level of transportation expenditure of 68,100won was found to be the lowest expenditure. Second educational attainment employment status conspicuous tendency of consumption and contribution to household economic of urban housewives husband's job the number of children monthly income debt ownership and home ownership were ignificant variables on each category of discretionary consumption expenditure while age future economic expectation egion and total asset were not significant variables. Third employment status conspicuous tendency of consumption husband's job the number of children monthly income and debt ownership were related to discretionary consumption expenditure of Korean urban housewives.