• Title/Summary/Keyword: Consumption pattern

Search Result 1,048, Processing Time 0.022 seconds

A Case Study of Electric Power Consumption Characteristics in University Building (대학건물의 에너지 소비 특성에 관한 사례분석)

  • Lee, Wang-Je;Lee, Dong-Won;Lee, Jae-Bum;Yoon, Jong-Ho;Shin, U-Cheul
    • Journal of the Korean Solar Energy Society
    • /
    • v.32 no.4
    • /
    • pp.90-95
    • /
    • 2012
  • Of school buildings, university building requires various case analysis unlike buildings in the elementary, middle and high schools in accordance with its characteristic for variables such as characteristic of department, construction structure and material, the number of persons admitted and schedule. Through the case research on the 'D' university located in Daejeon, this study made a comparison on the monthly and yearly consumption of gas and electricity of the most recent 3 years and implemented analysis on the usage pattern and standby power of air conditioning and heating by the hour and month using PCCS(Power Consumption Consulting System) as respects electricity that is considered to have a possibility of energy-saving. The result of analysis showed that enormous amount of electric power was used during the night time for freeze protection and burst in winter season and standby power was increased in winter season as a result.

A Case Study of Electric Power Consumption Characteristics in University Building (대학건물의 전력소비 특성에 관한 사례분석)

  • Lee, Wang-Je;Yoo, Jong-Ho;Baek, Nam-Choon;Shin, U-Cheul
    • 한국태양에너지학회:학술대회논문집
    • /
    • 2011.11a
    • /
    • pp.282-287
    • /
    • 2011
  • Of school buildings, university building requires various case analysis unlike buildings in the elementary, middle and high schools in accordance with its characteristic for variables such as characteristic of department, construction structure and material, the number of persons admitted and schedule. Through the case research on the 'D' university located in Daejeon, this study made a comparison on the monthly and yearly consumption of gas and electricity of the most recent 3 years and implemented analysis on the usage pattern and standby power of air conditioning and heating by the hour and month using PCCS(Power Consumption Consulting System) as respects electricity that is considered to have a possibility of energy-saving. The result of analysis showed that enormous amount of electric power was used during the night time for freeze protection and burst in winter season and standby power was increased in winter season as a result.

  • PDF

Consumption Pattern of Meals among Ulsan City Residents (울산시 주민의 건강을 위한 식행동 조사 연구)

  • 신애숙;김광기
    • Journal of the East Asian Society of Dietary Life
    • /
    • v.9 no.2
    • /
    • pp.135-148
    • /
    • 1999
  • This is a descriptive study of consumption Patterns of how to take meals in everyday life. The data used was collected from a probability sample by multi-stage cluster sampling, drawn from those who were living in the Ulsan Metropolitan Area. Face-to-face interviews were conducted by trained interviewers with a household member who was between the ages of 15 and 60 in 1989 and had the earliest birthday, resulting in a sample of 1,232 respondents. Univariate and bivariate analyses were made to describe behavioral patterns of taking meals. Meal-taking behaviors under this study include frequency of taking meals per day, regularity of taking meals, which meal to skip, number of frequency of taking a meal by oneself. reasons of skipping and irregular meals, and eatting out. Half of the respondents reported to take meals three times a day, while those who skipped at least a meal reported as one most frequently skipped. Of reasons not to take a meal on a regular basis, "too busy to eat" was most frequently mentioned. Only 32.8% of the respondents reported dining-out once a week.ce a week.

  • PDF

Gender and Age Differences in Dietary Behaviors and Food Consumption Pattern of Korean Americans Living in Western Parts of USA

  • Ro, Hee-Kyung;Georgiou, Connie
    • Preventive Nutrition and Food Science
    • /
    • v.10 no.2
    • /
    • pp.179-186
    • /
    • 2005
  • This study was conducted to find the gender and age differences in dietary behaviors and food consumption pattern of Korean American adults living in western parts of USA. The structured survey forms and self-administered food frequency questionnaire were used to assess dietary behavior and nutrient intakes. It was found that younger subjects kept their meal time more irregularly and skipped breakfast more often than older subjects due to lack of time. There were significant age differences in skipping meals, kind of skipping meals, and the reasons for skipping meals. Young subjects consumed more American type food while older subjects consumed more traditional Korean food. Nutrient intakes of males' except for the elderly were significantly higher in energy, protein, Fe and P than those of females'. Vitamin A and vitamin C intake were significantly higher in females. Energy ratio of carbohydrate: protein: fat was 56.2 : 16.8 : 27.0. Females consumed more plant food as their dietary sources of protein, fat, Ca and Fe, compared to males. Ca intakes of participants' were below $75\%$ of RDA except for the youngest male and $30\~49$ aged male and females. Futhermore, Ca intake was below $70\%$ after age 50 in both genders. Effective nutrition education program targeting Korean Americans in the community should be developed and implemented to increase Ca consumption.

A study of consumption patterns for high-income households -Six Major Expenditure Categories- (경제위기에 따른 고소득층의 소비지출에 대한 연구 - 주요 지출항목을 중심으로 -)

  • Bae, Mi-Kyeong;Park, Kwang-Hee
    • Korean Journal of Human Ecology
    • /
    • v.14 no.3
    • /
    • pp.423-432
    • /
    • 2005
  • This study reviewed the consumption patterns of high-income households and analyzed the ratio of major 6 expenditure categories including food at home, food away from horne, education, clothing, entertainment, and housing expenditure to total expenditure. We employed data from two different years (1997 and 1998) so that we could investigate the influence of the economy depression on the patterns and items ratio of consumption, For this purpose, the Daewoo Panel data were used. Also, data analysis was done with descriptive statistics, t-test, and regression analysis. The regression analyses were used to investigate the determinants of the high-income households' consumption patterns. The results of this study showed that food away from home, among 6 consumption items, seemed to be significantly affected by the depression, but still high-income households seemed not to lessen education expense. We included independent variables such as age, income, job, gender, debts and the likes. It was found that the age of reference person affected the amount of expenses for food, clothing, and entertainment. Other independent variables influenced different consumption categories. The results of this study would be useful for marketing strategies of fashion industries.

  • PDF

The Effects of Consumption Value of Female Consumers who Buy Bakery Goods on Impulse Buying and Purchase Satisfaction (베이커리제품을 구매하는 여성소비자의 소비가치가 충동구매와 구매만족도에 미치는 영향)

  • Chung, Hye-Sun;Sim, Ji-Suk;Lee, Jong-Jin
    • Culinary science and hospitality research
    • /
    • v.23 no.8
    • /
    • pp.27-39
    • /
    • 2017
  • This study was to examine how consumption value of female consumers affects impulse consumption and purchase satisfaction when they buy bakery goods, present specific determinant factors that affect them, and identify its influencing factors. The survey was conducted with those who have bought bakery goods of female consumers in Seoul and Kyonggi area, using a convenience sampling method. After a total of 400 responses was collected, 366 responses were included for the multiple regression analyses in order to test the hypotheses. To summarize findings from this study, analysis of the first hypothesis showed that "emotional impulse buying," "stimulating impulse buying," "reminder impulse buying," and "situational impulse buying" among impulse buying factors in consumption value factors had positive effects. The second hypothesis analyzed that "emotional impulse buying," "stimulating impulse buying," and "situational impulse buying" gave positive impacts on "purchase satisfaction," while "reminder impulse buying" had no influence. Analysis of the third hypothesis demonstrated that "consumption value" had positive effects on "purchase satisfaction." These findings were significant to examine consumption value that show the consuming pattern of consumers, analyze influencing factors on impulse buying of female consumers, and further present marketing strategies used for advantageous tools with competing stores to bakery owners or marketers.

Food and Nutrient Consumption Patterns of Korean Adults by Socioeconomic Status (사회경제수준에 따른 한국인의 식품 및 영양소 섭취 양상)

  • 김영옥
    • Korean Journal of Community Nutrition
    • /
    • v.6 no.4
    • /
    • pp.645-656
    • /
    • 2001
  • The relationship between socio-economic status and food and nutrient consumption patterns was studied in 7,370 Koreans aged 20 years and older in the 1995 Korean Health and Nutrition Survey. The aim of this study was to investigate the effect of rapid economic growth on food and nutrient consumption for Korean adults in the last 30 years. Monthly household income, and individual's educational level and occupation were chosen as variables of socio-economic status for individuals. A one day 24 hour recall method was used for the dietary survey. One way analysis of varience was adopted to test tole association between socio-economic variables and food and nutrient consumption patterns. Individuals who had a high socio-economic status had significantly higher daily intake of most of the nutrients including calcium, vitamin A, vitamin B$_2$which reached above the recommended dietary allowances(RDA) and a higher percentage energy consumption from fat. In addition, individual who belonged to a low socio-economic status consumed less animal foods, including meat, egg, milk and consumed low proportion of energy from fat. The results suggest that in spite of rapid economic growth during the last 30 years in Korea, individuals who belonged to low sorio-economic status categories are still nutritionally vulnerable. Among the sorio-economic variables, income and education except occupation were the influential factors on the food and nutrient consumption of Koreans. Therefore, nutrition policy should focus on influencing the dietary patterns of lower social class individuals to improve the health status of the population as a whole.

  • PDF

Characteristics of gasoline consumption and CO emission in urban traffic (도심주행에 있어서 가솔린 자동차의 연료소비 및 오염물질 배출특성에 관한 연구)

  • 조강래
    • Journal of the korean Society of Automotive Engineers
    • /
    • v.6 no.4
    • /
    • pp.36-45
    • /
    • 1984
  • The relationship between vehicle driving pattern and fuel consumption in urban area was studied in Seoul along three representative routes using a test car equipped with all the instruments required for recording modes of traffic and measuring fuel consumption. Correlation with idle speed, fuel consumption and CO concentration of car in use was also measured. The average vehicle speed in Seoul was 31.4 km/h and the time spent in different modes was 23.0% in idle mode, 22.5% in acceleration mode, 32.4% in cruising mode and 22.3% in deceleration mode, respectively. Hence, traffic flow was suggested to be relatively smooth. Fuel consumption per unit distance, .phi. was closely related with trip time spent per unit distance, t, and correlation coefficient obtained from the test car was 0.925, and the relationship between .phi. and t was also obtained from the linear regression with the following equation. .phi.=42.87+0.38 t. Idle speed of vehicle in use was mostly adjusted low and cars which were over the permissible standard of CO concentration (4.5%) were 50% or more. As the idle speed decreased, the fuel consumption was decreased, while the CO concentration was increased. Therefore, the decrease of fuel consumption can not be expected with only a decrease in idle speed.

  • PDF

The Effects of the Socially Responsible Clothing Consumption Attitude on the Clothing Disposition Behavior (Part I) (사회 책임적 의류 소비 태도가 의류 처분 행동에 미치는 영향(제 1보))

  • 장경혜;박재옥
    • Journal of the Korean Society of Clothing and Textiles
    • /
    • v.21 no.4
    • /
    • pp.795-805
    • /
    • 1997
  • The purpose of this study is to clearly understand the Korean consumer's socially responsible consumption attitude and disposition behavior through revealing by use Fishbein's Multi-Attributes Model as a conceptual frame, the relationship between the socially responsible clothing consumption attitude factors and disposition behavior pattern, and relations of demographic variables. Data were collected from the adult females residing in Seoul. Judgment Sampling were. performed twice during March of 1996 and total 549 sets of answers were used for final analysis. The result are following. First, by looking at the relationship between intrinsic side of socially responsible consumption attitude and disposition behavior, the attitude shows more economical disposition when consumers are in considerate about preservation of natural resources and clothing consumption and when consumers favor purchasing a second hand product, On the other hand, consumers' behavior shows more altruistic disposition, when they favor recycling and acquisition of second hand clothing and when not favor fashion. The result of analysis of relationship between the socially responsible clothing consumption attitude and demographic variables shows that income, age and education level relates to some intrinsic side of socially responsible clothing consumption attitude. On the other side, the analysis result shows that consumers with relatively lower education normally practice economical dispotion, while consumers with higher education level do altruistic disposition. Also, elder and married consumers tend to do more altruistic disposition.

  • PDF

Optimal Energy Consumption Scheduling in Smart-Grid Considering Storage Appliance : A Game-Theoretic Approach (스마트 그리드에 있어서 저장 장치를 고려한 최적 에너지 소비 스케줄링 : 게임 이론적 접근)

  • Yeo, Sangmin;Lee, Deok-Joo;Kim, Taegu;Oh, Hyung-Sik
    • Journal of Korean Institute of Industrial Engineers
    • /
    • v.41 no.5
    • /
    • pp.414-424
    • /
    • 2015
  • In this research, we consider a smart grid network of electricity with multiple consumers connected to a monopolistic provider. Each consumer can be informed the real time price changes through the smart meter and updates his consumption schedule to minimize the energy consumption expenditures by which the required power demand should be satisfied under the given real time pricing scheme. This real-time decision making problem has been recently studied through game-theoretic approach. The present paper contributes to the existing literature by incorporating storage appliance into the set of available household appliances which has somewhat distinctive functions compared to other types of appliances and would be regarded to play a significant role in energy consumption scheduling for the future smart grid. We propose a game-theoretic algorithm which could draw the optimal energy consumption scheduling for each household appliances including storage. Results on simulation data showed that the storage contributed to increase the efficiency of energy consumption pattern in the viewpoint of not only individual consumer but also whole system.