• 전기학회논문지
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• 제59권11호
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• pp.1956-1963
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• 2010

Studies on the development of various energy management programs and real-time bidirectional information infrastructures have been actively conducted to promote the reduction of power demands and CO2 emissions effectively. In the conventional energy management programs, the demand response program that can transition or transfer the power use spontaneously for power prices and other signals has been largely used throughout the inside and outside of the country. For measuring the effect of such demand response program, it is necessary to exactly estimate short-term loads. In this study, the power consumption patterns in both individual and group consumers were analyzed to estimate the exact short-term loads, and the relationship between the actual power consumption and seasonal factors was also analyzed.

• 한국식품조리과학회지
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• 제18권6호
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• pp.684-691
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• 2002

The objectives of this study were to determine the consumption pattern and importance of Kimchi in our meals, and the preference of Kimchi. The 77.0% of the housewife respondents were preparing Kimchi at home. The reasons for not making Kimchi were ‘don't have time’(39.4%), ‘don't know how to make Kimchi’(18.2%) and ‘don't eat much’(18.2%). The amounts of daily Kimchi intake of the respondents were ‘less than 50g’(42.3%) or ‘50-100g’(29.8%). They are Kimchi because it was ‘delicious’(48.4%) or ‘habitual’(39.5%). The 70.0% of the respondents answered that Kimchi was important in each meal. The most respondents favored ‘moderate’ in the degree of fermentation(48.1%), hot taste(65.0%) and salty taste(72.4%). As the age of the respondents increased, they favored less sour, less hot and less salty taste. Baechu Kimchi(4.15), Chonggak Kimchi(3.89), Dongchimi(3.85), Kkaktugi(3.74), water Kimchi(3.67) were preferred by the respondents. The 73.97% of the respondents preferred Kimchi Jjigye. The 10- to 19-years old respondents preferred Kimchi Jjigye(52.8%), Kimchi pan cake(24.5%) and fried rice with Kimchi(17.0%).

• Journal of Forest and Environmental Science
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• 제28권2호
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• pp.75-83
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• 2012

An explanatory survey was conducted to assess preference and consumption pattern of horticultural species, their sources, location-wise planting preferences and diversity of these species in the rural homestead forest of the offshore island of Bangladesh. Assessment was done through multistage random sampling. Based on homestead size respondents were categorized into small (<0.05 ha), medium (0.05-0.25 ha) and large (>0.25 ha) and twenty from each category were selected randomly for the study. The study revealed that most of the farmer (75.5%) preferred to plant fruit tree species for future plantation followed by timber species (62.2%). But fruit-bearing plants were being gradually replaced by some exotic timber species such as Swietenia mahagoni, Acacia auriculiformis, Tectona grandis, Eucalyptus spp., etc. Diversity and abundance of fruit species was found higher in almost all homestead. A total of 41 horticultural species were identified and seven horticultural species among them were recognized as the most preferred ones in the study area. Consumption pattern was chiefly to meet the nutritional demand and to gain a quick monetary benefit. Average annual income from horticultural species was 7,183.33 Taka (US$102).

• 한국식생활문화학회지
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• 제12권3호
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• pp.323-329
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• 1997

The research was conducted to investigate the children's consumption pattern and preference of Korean rice cake by analyzing the relation among their socio-demographic backgrounds. This study provides basic information for systematic development and wide spread of Korean rice cake as a traditonal Korean food. A self completed questionnaire survey of 639 elementary school students in Seoul was undertaken. A survey questionnaire consisted of two parts including demographic backgrounds, children's consumption pattern and preference of Korean rice cake. A likert scale of one to five was used to determine the childrem's preference of Korean rice cake. Statistical data analysis was done using the SPSS/PC program for descriptive analysis and $x^2$ test. Approximately half of the participants were male (51.5%) and 5-degree year (50.7%) students. 77.2% of respondents were nuclear families. The results of eating frequency rate showed that 57.1% students had Korean rice cake once a month followed by once a week (18.8%), once per two months (12.2%) and once per six months (10.5%). The major reasons for having Korean rice cake were good taste (55.2%), healthy food (22.3), our traditional food (17.3%), and etc (2.2%) in order. Average children's preference score of 14 Korean rice cakes was $2.82{\pm}1.59$ out of 5, with the highest score of 4.30 for Songpyun and the lowest score of 1.06 for Bukumi.

• 한국식품조리과학회지
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• 제5권2호
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• pp.91-97
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• 1989

강원도지역에 거주하는 만 13∼15세의 중학교 학생 866명을 대상으로 라면소비실태와 품질인자에 대하여 조사한 결과는 다음과 같았다. 1) 총 866명중 67%가 라면을 1주에 1회이상 섭취하고 있었으며 이들 대부분은 가정에서 저녁식사 또는 간식의 형태로 라면을 이용하고 있었다. 2) 라면을 먹는 주된 이유는 편의성과 맛때문인 것으로 나타났으며 라면을 선택할 때는 선전이나 광고에 의하여 이루어지고 있었다. 3) 라면을 먹을때 가장 중요시하는 인자는 국물의 맛이었으며 대체로 보통정도 굵기의 면발을 선호하고 있었다. 4) 면발의 조직감은 쫄깃쫄깃하고 꼬들꼬들한 것을 좋아했으며 흐물거리고 풀어진 면발은 싫어했다. 국물의 맛은 얼큰한 맛을 가장 좋아했으며 그다음이 구수한 맛으로 나타났고 느끼한 맛과 짠맛은 싫어하는 것으로 나타났다. 5) 라면선택방법의 문항을 제외한 모든 문항에서 성별에 따라 유의적인 상관관계가 있었다.

• 식품보건융합연구
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• 제3권1호
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• pp.1-7
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• 2017

The study has made theoretical system by thesis journals at home and abroad, material of the Association of Convenience Store Industry of Korea, materials of Statistics Korea and reference books. First, the study examined convenience store's brand image, cognized value, quality level, reliability upon brand, structural relation of purchasing intention, and designed models and theses. Second, the first questionnaire consisted of test items of precedent study, and inspected in advance to inspect reliability and appropriateness, and made correction and supplemented problems. Third, SPSS and AMOS statistics were used to conduct empirical analysis and to find out conclusion and implications. In this study, the subject was consumers who visited local convenience stores such as GS25, Seven Eleven and CU last 3 months to buy PB food. Consumers' consumption pattern and culture made change to be reasonable and practical owing to aging society, nuclear family, women's entering into the society, one person household consumer, and convenient and prompt buying to make different consumption pattern and to make change of commodity distribution pattern. Convenience store took action against change of the trend to expand business area by new distribution channels to get another growth source. Private brand (PB) food that was distributor's brand was expanded. The PB product has been competitiveness of food service industry.

• 한국식생활문화학회지
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• 제14권5호
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• pp.447-454
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• 1999

The empirical research was conducted to investigate women's consumption pattern of Korean rice cakes and to analyze the preference of them by their demographic backgrounds. The results of this study provide useful informations for a systematic development of Korean rice cake. A self-completed questionnaire survey of 281 women in Seoul was undertaken and detailed information was collected from each. A questionnaire consisted of three parts including demographic backgrounds, consumption pattern and preference of Korean rice cakes, and the need assessment. Demographic variables of respondents included age, marital status, education, family style, monthly income etc. Most of them(82.6%) were married with the average age of $36.3{\pm}8.4$ year old. The results of eating frequency rate showed that about half of women(49.1%) had Korean rice cake once or twice a month followed by once a week(23.1%), once per two months(13.9%), once per six months(8.2%), and once per three months(3.9%). Average preference score of 14 Korean rice cakes was $3.08{\pm}1.49$ out of 5, indicating 'so-and-so'. Ingeolmi received the highest score of 4.02, whereas Duteopteok had the lowest score of 0.18. The preference score of Korean rice cake and the respondents' knowledge of them showed significantly strong positive correlation. The need-assessment score for improving the quality of Korean rice cake was $3.72{\pm}1.35$ out of 5, showing moderate willingness for improvement of Korean rice cake.

• 대한임베디드공학회논문지
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• 제13권3호
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• pp.151-160
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• 2018

NAND flash memories have the advantages of fast access speed, high density and low power consumption, thus they have increasing demand in embedded system and mobile environment. Despite the low power and fast speed gains of NAND flash memory, DRAM disk buffers were used because of the performance load and limited durability of NAND flash cell. However, DRAM disk buffers are not suitable for limited energy environments due to their high static energy consumption. In this paper, we propose WAP-LRU (Write pattern Analysis based Placement by LRU) hybrid disk buffer management policy. Our policy designates the buffer location in the hybrid memory by analyzing write pattern of the workloads to check the continuity of the page operations. In our simulation, WAP-LRU increased the lifetime of NAND flash memory by reducing the number of garbage collections by 63.1% on average. In addition, energy consumption is reduced by an average of 53.4% compared to DRAM disk buffers.

• 조명전기설비학회논문지
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• 제15권2호
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• pp.38-48
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• 2001

본 논문에서는 광역상수도 시스템의 취·송수 설비의 최적운영계획에 필수적으로 요구되는 시간 단위 용수 수요량 예측을 위하여 칼만 필터에 의한 수요 예측 모델 구축 및 배수패턴 해석 기법을 제안하고, 기존 시스템의 실 데이터를 이용하여 시뮬레이션 수행 결과 제안된 기법의 유용성이 검증되었다. 광역상수도 시스템에서 취·송수 설비의 최적운영계획 수립을 위해서는 예측 시간 범위를 최소 하루 단위 이상으로 유지해야 한다. 따라서, 제안된 기법에서는 기존의 시간별 실적데이터의 시계열에 의한 예측을 이용하는 것이 아니라 모델로부터 예측된 일 수요량에 배수패턴을 곱하여 24시간의 시간별 용수 수요량을 예측한다. 일 수요량 예측을 위한 칼만 필터 모델은 입력변수의 통계적 분석에 의해 모델 구조 최적화가 효과적으로 구현되고 배수패턴은 데이터 Granulization에 의해 얻어진다.

• 한국식품조리과학회지
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• 제4권2호
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• pp.81-86
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• 1988

강원도지역에 거주하는 10세에서 13세까지의 국민학교 아동 675명을 대상으로 라면의 소비실태와 품질인자에 대하여 조사한 결과는 다음과 같다. 1) 총 675명중 64%가 1주에 1회 이상 라면을 먹고 있으며 대부분이 식사대용으로 가정에서 먹고 있다. 라면을 먹는 이유로는 편의성과 맛 때문인 것이 주를 이루었고 대체로 선전 또는 광고에 의하여 라면을 선택하고 있었다. 2) 라면을 주 1회 이상 먹는 432명의 43.3%가 라면의 국물 맛을 중요시했으며 대체로 보통 굵기의 면발을 선호했다. 한편 면발의 조직감중 쫄깃쫄깃한 것을 가장 좋아했으며 꼬들꼬들한 것과 흐물흐물한 것을 가장 싫어했다. 국물의 맛은 얼큰한 맛을 가장 좋아했으며 느끼한 맛과 짠맛을 싫어하는 경향으로 나타났다. 라면을 먹지 않는 이유와 라면선택 방법의 문항을 제외한 모든 문항에서 성별에 따라 유의적인 상관관계를 나타내었다.