• Title/Summary/Keyword: Energy-awareness

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Dietitians' Self-Evaluation and Barriers to Sustainable Practices for School Foodservice Management - Focused on Daejeon and Chungnam Area - (학교급식 지속가능경영활동에 대한 영양사의 자기평가와 장애요인 - 대전·충남지역을 중심으로 -)

  • Yi, Na-Young
    • Korean journal of food and cookery science
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    • v.33 no.3
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    • pp.342-352
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    • 2017
  • Purpose: The purposes of the study were to evaluate dietitian's practices for sustainability management and identify barriers of sustainability management at school foodservice. Methods: A total of 220 dietitians working in Daejeon and Chungnam area were surveyed. 187 responses were analyzed for the study. Data were analyzed using SPSS Windows. Results: The respondents were 36% in their 20 s, 38% in their 30 s, 39.6% in elementary schools, 33.7% in middle schools and 26.4% in high schools. Among dietitian's practices for sustainability management, the item with the highest self-evaluation was purchase eco-friendly food (3.75). The category with the highest score was procurement (3.52), by waste management (3.48), production (3.39), menu management (3.36), facility and energy management (3.20), personnel management (3.18), and nutrition education (3.04). In the area of menu management, production management, facility and energy management, nutrition education, and personnel management, scores of elementary school working dietitians were the highest, followed by middle school and high school (p<0.001). The most perceived factor for barriers to sustainability management was principal's indifference to sustainability management (4.10 out of 5 points). ietitian's sustainability management practices and barriers showed a negative correlation. Conclusion: It is necessary to dietitians, employees, and principals' awareness about sustainability management in order to perform effective sustainable management school foodservice.

Simulation Method of Photovoltaic Generation Systems using EMTP Type Simulators (EMTP형 시뮬레이터를 이용한 태양광발전시스템 모의 방법)

  • Park Minwon;Yu In-Keun
    • The Transactions of the Korean Institute of Electrical Engineers B
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    • v.54 no.6
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    • pp.303-308
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    • 2005
  • As the cost of photovoltaic(PV) generation systems continues to decrease, utility interactive systems are becoming more economically viable. Furthermore, increases in consumer awareness correspond to a willingness to pay a premium price for clean electrical energy generated using renewable energy resources. Especially, PV generation systems, in particular, is undergoing a rapid expansion-showing an industrial growth of approximately 40$\%$ per year in the worldwide, as PV cell and systems technology improve new markets become increasingly accessible. This has resulted in an increased demand for the simulation scheme and operational technologies of utility interactive PV devices and systems. The simulation schemes that can be applied to the utility interactive PV generation systems readily and cheaply under various conditions considering the sort of solar cell, the capacity of systems and the converter system as well are strongly expected and emphasized among researchers. So far, authors have been introducing the simulation method of PV generation systems with several papers. In this paper, authors introduce the simulation way of PV generation systems using EMTP type simulators; EMTP/ATP, EMTDC/PSCAD, RTDS, with each examples. And, by connecting the voltage amplifier to the RTDS a novel simulation method which is extremely close to the real condition of PV generation system is also introduced.

Investigations on Lighting Environment of Living Room and Lighting Use According to the Behavior in Large Apartment Houses (대형 공동주택 거실 조명환경과 행위별 조명사용에 관한 조사연구)

  • Kim, Hyun-Ji;Kim, Hoon
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.26 no.3
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    • pp.1-8
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    • 2012
  • This study investigated current status of lighting environment, residents' awareness of lighting and lighting use according to behavior in the living room of apartment to determine current lighting trends and their related problems. The living rooms of newly-built apartment units(133~165[$m^2$] and larger than 166[$m^2$] within the past five years) were examined. The results are summarized as follows. 1. Resident satisfaction with current living room lighting was the highest in 'illumination' and the lowest was 'energy savings' regardless of the size of living room. 2. This kind of ceiling lighting layout, 133~165[$m^2$] unit used central lighting and larger than 166[$m^2$] units used central lighting and cove lighting. Regarding light sources, 133~165[$m^2$] linear FL, halogen, larger than 166[$m^2$] bulb-type FL are widely used. LED are now being found in the living room corridor and kitchen walls of newly-built apartment houses. 3. Watching TV and reading books were commonly behaved in the living room. Conversations between family, having desserts, resting, housekeeping, and entertaining were usually done weekdays, while having desserts and conversations between family were done weekends. Use of lighting as main behaviors is properly and differently required due to the distinct uses of lighting as residents' behaviors or their life style.

A Study on the Analysis of Ecologically Friendly Features in Recently Developed Public Housing (소형 공동주택 단위주거의 친환경성에 관한 사례분석연구)

  • Yim, Jung-Eun;Lee, Hyun-Jeong;Lee, Yeun-Sook;Cho, Ji-Yeon;Lee, Jung-Mi
    • Proceedings of the Korean Institute of Interior Design Conference
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    • 2005.05a
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    • pp.106-109
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    • 2005
  • The awareness of ecological friendliness has been emerging in the recent years, and the application to housing is quite notable. The purpose of this study was to examine multi-family housing that has recently developed with the idea of ecological friendliness, and to investigate the residents' attitudes toward and their preferences for the features. The research utilized in-depth interviews and site visits, and seven residents in the studied housing developments participated in the study. The analytical tool used in the interview was reviewed by a panel of professionals and included five aspects of ecologically friendliness: residential comfort, energy saving, open housing, storage, and safety and security. The respondents pointed out that south-facing housing in relation to residential comfort was most favorable. With regard to energy-saving, water-saving features and dehydrator of food waste were most needed features. As for open housing-related features, flexibility in spatial configuration was necessary, and efficient storage was regarded as important. Also, the respondents mentioned the preference for flooring preventing slippery in bathroom for the safety of family member.

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Average Score-to-Allotted Point Ratio Analysis of Each Assessment Item of Green Apartment Complex Certification System (친환경 공동주택 인증 심사항목별 득점비율 분석을 통한 개선 필요 항목 도출)

  • Song, Seung-Yeong;Lee, Hyun-Hwa;Lee, Hyun-Woo
    • Journal of the Korean Solar Energy Society
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    • v.28 no.4
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    • pp.1-9
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    • 2008
  • With an awareness of the fact that influence of building industry on the environment problems is great, many countries have been endeavoring to construct sustainable and environmentally-friendly buildings. In Korea, the GBCS (Green Building Certification System) has been in force since 2002. Total 6 types of buildings are dealt in the GBCS. Especially, it is expected that the number of apartment complexes, which are the most common type of residences in Korea, applying for GBCS has increased continuously. In this study, we aim to pick out the items requiring improvement for the green apartment complex. Existing 12 certified apartment complexes were selected. GBCS assessment results and actual conditions of design and construction were investigated and analyzed. Total 18 items requiring improvement were picked out in accordance with the average score-to-allotted point ratio. Relevant particulars expected to be helpful for the next design works were also presented.

MFM-based alarm root-cause analysis and ranking for nuclear power plants

  • Mengchu Song;Christopher Reinartz;Xinxin Zhang;Harald P.-J. Thunem;Robert McDonald
    • Nuclear Engineering and Technology
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    • v.55 no.12
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    • pp.4408-4425
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    • 2023
  • Alarm flood due to abnormality propagation is the most difficult alarm overloading problem in nuclear power plants (NPPs). Root-cause analysis is suggested to help operators in understand emergency events and plant status. Multilevel Flow Modeling (MFM) has been extensively applied in alarm management by virtue of the capability of explaining causal dependencies among alarms. However, there has never been a technique that can identify the actual root cause for complex alarm situations. This paper presents an automated root-cause analysis system based on MFM. The causal reasoning algorithm is first applied to identify several possible root causes that can lead to massive alarms. A novel root-cause ranking algorithm can subsequently be used to isolate the most likely faults from the other root-cause candidates. The proposed method is validated on a pressurized water reactor (PWR) simulator at HAMMLAB. The results show that the actual root cause is accurately identified for every tested operating scenario. The automation of root-cause identification and ranking affords the opportunity of real-time alarm analysis. It is believed that the study can further improve the situation awareness of operators in the alarm flooding situation.

An Exploratory Study on Package Design Strategy for Activating Energy Drink Market (에너지음료 시장 활성화를 위한 패키지디자인 전략에 관한 탐색적 연구)

  • Lee, Ho-Se
    • Industry Promotion Research
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    • v.2 no.1
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    • pp.31-38
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    • 2017
  • This study is an exploratory study on the package design research strategy for the activation of the energy drink market. We analyzed the case study of energy drinks and the preference of energy beverage package design which are being sold in Korea and overseas from Oct. 24 to 28, 2016. The results of this study are as follows: First, preference is given to two colors, blue and red, regarding the color of package design of energy drinks. In particular, blue was the most preferred at 62.8%, and the reason for choosing color was the image that reminds me of energy drinks, and it was highly visible. Second, most preference of energy drinks for packaging material was selected from can and glass materials, and most preferred for can. Third, preference for calligraphy was found to be due to the dynamic images of energy drink preferring rough images. Fourth, package design awareness focused on overall image rather than one factor. The limitations of the study are the research subjects only to university students in Daejeon and Chungnam area. In the future, it will be necessary to classify the overall elements of package design and various research subjects, and to study the major consumption and consumption areas of energy drinks. In this study, it is implied that the design of the package needs a package design strategy in accordance with the overall product image, rather than focusing on one factor.

Demystifying an Appropriate Use of a Performer's 'Energy' Where the Performer's Body Becomes 'Real'

  • Son, Bong-Hee
    • International Journal of Advanced Culture Technology
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    • v.10 no.2
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    • pp.148-153
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    • 2022
  • This thesis investigates the meaning of a performer's energy taking into an account of the full bodily engagement as the flow of energy and/or psychophysical readiness focusing specifically on the significance of qualitative bodily transformation. In this contemporary era, the dominance of performer training and its approaches to acting/training has very frequently meant that how to play a character in a textual based approach by emphasizing on interpreting and impersonating the role as real as possible. In this sense, as a performer trainer, from my observation and research findings shows that it is common for the term energy is not to be motivated by what a performer's body needs within a specific moment in specific performance which they are working on. To address the problematic issues, this thesis begins by interrogating the practical meaning of transformation with addressing the principle and process of movement by means of the flow of energy on stage. For a performer, inhabiting/integrating his/her body and mind as oneness and/or unity means s/he sincerely encounter, confront, and therefore listen to his/her body in here and now. Because since the performer's physical appearance completely defined his/her psychological state, no one can play either the past or the future in the moment. In this manner, an appropriate use of energy synonymous with the flow of energy correspondence with the given time and space in which the performer's body informs and initiates movement as necessary action. To be precise, the performer's bodily movement either visible or invisible in a sense of training and rehearsal is perceived as attaining or achieving psychophysical involvement as the full body engagement which enable to make the event happen in the right moment. Here, this thesis argues that the significance of a performer's inner intensity reminds us of the necessity of qualitative transformation on which the performer could discover his/her own mode of awareness as well as a way his/her body function in the given circumstance. From this point of view, this research finding would advocates that the performer's body maintains in the field of energy flow where his/her conscious effort and/or mindfulness disappear. The performer's movement is a manifestation of the whole bodily engagement by means of being as real in that moment rather than representing reality.

A Review on the evaluation of transit quality of service (대중교통 서비스 품질 평가의 국내외 연구 동향 및 시사점)

  • Lee, Sang-Jun;Kim, Hyung-Su;Jung, Dong-Jae;Chang, Justin S.
    • Proceedings of the KSR Conference
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    • 2011.05a
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    • pp.1290-1299
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    • 2011
  • Internal and external conditions are currently changing-e.g, climate change increased awareness of energy crisis, and accelerated paradigm about green growth. Accordingly, revitalization of public transportation which enables green transportation system is receiving more attention than the past. Meanwhile, as the incom level increased, people required better quality of service, and consequently, various proposals about improving the services are being promoted. Generally, the quality of the spaces within transit in developed countries is represent the quality of life, thus concerns about the transit service of quality are emerging. This study, through the domestic and abroad studies about transit service quality, redefines transit service quality including rail and reviews the related categories. In that order this study deducts each type of evaluation categories and factors, with comparing and reviewing with various cases in Korea and overseas. Based on the whole process, the paper elicits implications and proposes to the research about the evaluation of transit quality of service.

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Sternal Fracture occurred after Thai Massage : A Case Report (마사지 시술 후 발생한 흉골골절 환자 증례보고)

  • Song, Young-Il;Kim, Dong-Eun
    • The Journal of Churna Manual Medicine for Spine and Nerves
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    • v.10 no.2
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    • pp.51-60
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    • 2015
  • Objectives: The purpose of this study is to investigate the safety, injury mechanism, complication and adverse reactions associated with Chuna manual theraphy(CMT), to report one case of adverse reaction with Thai Massage(TM). Methods: A 76-year-old woman presented with chest pain and dorsalgia. The patient undertook a TM. The patient's chest pain didn't improve by Korean medecine. In MRI study, sternal fracture was diagnosed. Results and Conclusions : It is supposed that this patient suffered chest pain and dorsalgia due to a TM. From this case, we can understand the etiology of sternal fracture to some extent and consider the complication of Chuna manual theraphy through TM. In addition, This study raises the awareness of the possibility of a sternal fracture caused by a low-energy CMT technique.