• 도시과학
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• 제11권1호
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• pp.15-20
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• 2022

The issue of hotel energy use is growing more significant as the hotel industry expands. It is important to take into account the electrical installation and space-specific features in a room unit in order to comprehend the energy consumption of a hotel guestroom. In light of this, this study aimed to analyze standby power for enhancing the energy efficiency of a hotel guestroom during check-out status. This study was conducted in three steps: (i) data collection; (ii) analysis of energy consumption patterns; and (iii) analysis of energy efficiency improvement plan. The main findings of this study can be summarized as follows. First, 32.24% of energy was used in fan coil unit) during check-out status. Second, a hotel guestroom had a 4.30% energy saving potential, based on energy consumption patterns during check-out status. This study can contribute to support hotel management to operate guestrooms differently by helping them identify patterns in energy use and realize potential savings.

• Journal of Nutrition and Health
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• 제51권2호
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• pp.168-176
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• 2018

본 연구는 농촌경제연구원에서 실시한 2015년 식품소비행태조사 자료를 이용하여 여성의 결혼여부에 따른 조사대상자의 일반적 사항, 식료품 구입행태, 외식행태, 배달 및 테이크아웃 이용 행태, 그리고 가공식품 및 조리식품 구입행태를 조사하였다. 식료품 구입 빈도에서는 미혼인 경우는 주 1회 (40.5%), 기혼인 경우는 주 2~3회 (43.1%)로 가장 높게 나타났다. 친환경 식품의 구매여부는 결혼여부와 관계없이 구매하지 않는 비율이 60%이상 (미혼 68.2%, 기혼 61.6%)으로 높게 나타났고, 기능성 식품의 복용률은 기혼여성 (54.2%)이 미혼여성 (44.9%)보다 높은 것으로 조사되었다. 결혼여부에 따른 외식행태는 미혼인 경우가 기혼인 여성보다는 외식을 더 많이 하는 것으로 조사되었고, 미혼인 경우는 한식당, 기혼은 고깃집을 외식장소로 주로 이용하는 것으로 나타났다. 그리고 배달 및 테이크아웃의 소비행태에서는 기혼인 경우가 월 2회 (34.6%), 미혼은 월 1회 (31.2%)가 각각 가장 높은 것으로 나타났다. 그리고 배달 및 테이크아웃의 빈도는 외식횟수와는 달리 기혼인 경우가 더 높은 것으로 조사 되었다. 또한, 결혼여부에 따른 가공식품의 구입행태에서도 미혼여성이 기혼여성에 비교하여 대표적인 가공식품인 빵류, 과자류, 떡류 및 라면, 국수류의 구매 빈도가 더 낮은 것으로 나타났다. 본 연구는 여성의 결혼 여부에 따른 식품소비 행태인 식품 구매, 외식, 배달/테이크아웃 패턴을 비교 분석하였으며, 이러한 결과는 관련 연구와 산업에 기초자료로 활용되길 기대한다.

• 대한전기학회논문지:전력기술부문A
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• 제54권5호
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• pp.217-225
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• 2005

In a power system, an out-of-step condition causes a variety of risk such as serious damage to system elements, tripping of loads and generators, mal-operation of relays, etc. Therefore, it is very important to detect the out-of-step condition and take a proper measure. Several out-of-step detection methods have been employed in relays until now. Most common method used for an out-of-step detection is based on the transition time through the blocking impedance area in R-X diagram. Also, the R-R dot out-of-step relay, the out-of-step prediction method and the adaptive out-of-step relay using the equal area criterion (EAC) and Global Positioning Satellite (GPS) technology have been developed. This paper presents the out-of-step detection algorithm using the time variation of the complex power. The complex power is calculated and the mechanical power of the generator is estimated by using the electrical power, and then the out-of-step detection algorithm which is based on the complex power and the estimated mechanical power, is presented. This algorithm may detect the instant when the generator angle passes the Unstable Equilibrium Point (UEP). The proposed out-of-step algorithm is verified and tested by using Alternative Transient Program/Electromagnetic Transient Program (ATP/EMTP) MODELS.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1997년도 한국자동제어학술회의논문집; 한국전력공사 서울연수원; 17-18 Oct. 1997
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• pp.1391-1394
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• 1997

This paper proposes a new image processing algorithm to recognize korean documents. It take out the region of text area form input image, then it makes esgmentation of lines, words and characters in the text. A precision segmentation is very important to recognize the input document. The input image has 8-bit gray scaled resolution. Not only the histogram but also brightness dispersion graph are used for segmentation. The result shows a higher accuracy of document recognition.

• 기술사
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• 제24권3호
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• pp.43-50
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• 1991

On the ground foundation works for Bldg site, Rock classification test can be obtained as follows due to the International Society for Rock Mechanics. 1. In-take test ; Compression strength, Point load test. 2. In-situ test : Schmidt hammer test. Burden test finaly the convinient co-relation table between strength and S.H. test were carried out for site-engineer. This project is one of contineous works regarding to Burden test from Jack leg drill( ø 36mm) to Crawler drill( ø 75mm) use.

• 대한간호
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• 제26권4호통권142호
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• pp.64-75
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• 1987

The purpose of this study is to find out Foods and Behaviors to eschew or take during pregnancy, and foods and methods can be helped during labor and delivery according to the cultural background for the nursing intervention design befitting our culture.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 1995년도 추계학술대회 논문집
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• pp.427-430
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• 1995

This paper proposes a new image processing algorithm to recognize korean documents. It take out the region of syllable area from input character image, then it makes recognition of a consonant and a vowel in the character. A precision segmentation is very important to recognize the input character. The input image has 8-bit gray scaled resolution. Not only the shape but also vertical and horizontal lines dispersion graph are used for segmentation. Theresult shows a higher accuracy of character segmentation.

• 대한간호
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• 제26권1호통권139호
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• pp.77-95
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• 1987

The purpose of this study is to find out the self-care style in postpartal period according to the cultural background in Korea. To put it concretely, the contents of the self care are food and behaviors to eschew and take in postpartal period: foods and

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 1999년도 하계종합학술대회 논문집
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• pp.1059-1062
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• 1999

Recently, X-ray chest radiograph is showing a tendency to take an image of digital radiograph so as to diagnose the pathological pattern of chest in a usual. When the radiologist observes the chest image derived from digital radiograph system on the monitor. he feels difficult to find out because of the sensitivity of chest radiograph. It takes amount of time to adjust the proper image for diagnosis. Therefore, we provided the result and the method of the optimal image equalization for image enhancement.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 1997년도 봄 학술발표회 논문집
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• pp.515-520
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• 1997

This research is aimed at the development of the composite beam-column connection system by which the steel beam can be connected to the R/C column with smooth stress transfer. As the first step of the structural performance tests of the system, bearing resistance test has been carried out for actual size specimen. From the test, the connection system has been proved to take good bonding and stress transfer to the surrounding concrete with negligible relative displacements.