• Title/Summary/Keyword: Common Methodology

Search Result 654, Processing Time 0.029 seconds

Cost Estimating of Heat and Electricity on a Gas-Turbine Cogeneration (가스터빈 열병합발전에서 생산된 열과 전기의 원가산정)

  • Kim, Deok-Jin
    • Proceedings of the SAREK Conference
    • /
    • 2008.11a
    • /
    • pp.351-356
    • /
    • 2008
  • When various kinds of outputs are produced from a single energy system, the methodology which allocates the common cost to each output cost is very important because it is directly related with the profit and loss of producers and purchasers. In the cost allocation methodology of the heat and the electricity on a cogeneration, there are energy method, work method, proportional method, benefit distribution method, various exergetic methods, and so on. On the other hand, we have proposed a worth evaluation method which can be applied to any system. The definition of this methodology is that the unit cost of a product is proportion to the worth. Where, worth is a certain evaluating basis that can equalize the worth of products. In this study, we applied this methodology to a gas-turbine cogeneration which produces 119.2 GJ/h of electricity and 134.7 GJ/h of heat, and then we allocated 3,150 $/h of fuel cost to electricity cost and heat cost. Also, we compared with various cost allocation methods. As the result, we conclude that exergy of various kinds of worth basis evaluates the worth of heat and electricity most reasonably on this system.

  • PDF

A Exploration of Neural Network Development Methodologies (인공지능 네트워크의 Methodology 개발 상호비교)

  • Lee, Ki-Dong;Meso, Peter
    • Journal of Digital Convergence
    • /
    • v.9 no.4
    • /
    • pp.91-101
    • /
    • 2011
  • We examined current publications on artificial neural network development with a View to identifying the methodologies that are being used to develop these networks, how extensive these methodologies are, the categorization of these methodologies, if these methodologies demonstrate a common underlying and generic (standard) methodology for the development of artificial neural networks, and how closely these methodologies (and the underlying genetic methodology, if established) relate to the conventional systems development methodologies.

Cost Estimating of Electricity and Steam on a Gas-Turbine Cogeneration (가스터빈 열병합발전에서 생산된 전기와 증기의 원가산정)

  • Kim, Deok-Jin
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
    • /
    • v.21 no.4
    • /
    • pp.252-259
    • /
    • 2009
  • When various kinds of outputs are produced from a single energy system, the methodology which allocates the common cost to each output cost is very important because it is directly related with the profit and loss of producers and purchasers. In the cost allocation methodology of the heat and the electricity on a cogeneration, there are energy method, work method, proportional method, benefit distribution method, various exergetic methods, and so on. On the other hand, we have proposed a worth evaluation method which can be applied to any system. The definition of this methodology is that the unit cost of a product is proportion to the worth. Where, worth is a certain evaluating basis that can equalize the worth of products. In this study, we applied this methodology to a gas-turbine cogeneration which produces 119.2 GJ/h of electricity and 134.7 GJ/h of steam, and then we allocated 3,150 $/h of fuel cost to electricity cost and steam cost. Also, we compared with various cost allocation methods. As the result, we conclude that reversible work of various kinds of worth basis evaluates the worth of heat and electricity most reasonably.

Southeast Asian Studies and Economics in Korea (한국의 동남아 지역연구와 경제학: 학술지 분석 및 방향성 모색을 중심으로)

  • RA, Hee-Ryang
    • The Southeast Asian review
    • /
    • v.22 no.2
    • /
    • pp.43-93
    • /
    • 2012
  • This paper examines the performances of economics for Southeast Asian studies and finds the relationship between economics and Southeast Asian studies in Korea. Based on this we try to find the direction and the way how economics contributes to Southeast Asian studies. First of all, we look into several journals on area studies, such as Review of Southeast Asia, and find out that economics researches on Southeast Asia are much fewer than expected. This shows that Korean economists are not much interested in the issue of Southeast Asia and reflects the academic differences as discipline in economics and interdisciplinary Southeast Asian studies. However, we could find the common area that economics and Southeast Asian studies can share. Also, we suggest some points that economics contributes to development of Southeast Asian studies toward a independent academic discipline. It includes the theory and methodology of international, and development economics. The rapid development of information and communication technology and the economic integration by globalization needs new and modified economic theory and methodology for research on Southeast Asia. Adopting the objective and statistical methodology of economics could level up Southeast Asian studies as social science. Also, Southeast Asian studies need to recruit more actively economics research topics and methodology. Economics could attribute to the development of Korean Southeast Asian studies.

Analysis and comparison of ontology development methodologies: based on CMM-I version 1.1 Maturity Level 2 and 3 (온톨로지 개발 방법론 분석 비교 (CMMI 버전 1.1 성숙 단계 2와 3을 기반으로))

  • Choi, Seung-Yong;Kim, Jeong-Ah;Jung, Ran;Bae, Je-Min;Hong, Chan-Ki;Choi, Sung-Woon
    • Journal of KIISE:Software and Applications
    • /
    • v.34 no.12
    • /
    • pp.1021-1036
    • /
    • 2007
  • As the requirement of Semantic Web and knowledge management has been rising, ontology developments have been carried out actively. Ontology is now at the point that systematic developing standardization should be made up like the developing a large scale software. Yet, It has not been made to optimize and standardize ontology development methodologies. In this study, to compare ontology development methodologies, METHONTOLOGY, CommonKADS, OTK in foreign countries and EOE in Korea are selected. The evaluating method is to introduce CMM-I version 1.1 framework. Ontology development methodologies have been evaluated in process areas that introduce for CMM-I maturity level 2 and 3. The purpose of this study is to find matured process and weak process in ontology development methodology on the view of process maturity, and suggests the areas to be Improved in it. The result of this study can be applied as basic data to establish and improve ontology development methodology.

A study on the Subjectivity in Capstone Design Subject with Teaming Teaching -The case of Culinary Art Major Students in Y College- (팀티칭 교수법을 적용한 캡스톤디자인과목의 주관적 인식연구 -Y대학 식음료조리계열 조리전공자를 중심으로-)

  • Shin, Seoung-Hoon;Kim, Chan-Woo
    • The Journal of the Korea Contents Association
    • /
    • v.19 no.6
    • /
    • pp.450-460
    • /
    • 2019
  • This study analyzed the culinary arts major students' subjective perception toward capstone design subject which was thought by team teaching method through applying Q methodology. Generating future suggestions of the operation of the subject and finding common structure of students's responses are the main aim of this study. From the typological analysis, four types of common structures were found. There were Differentiation Curriculum Satisfaction Type(Type 1, N=14), Restaurant business plan Type(Type 2, N=5), Prefer franchise education Type(Type 3, N=3), Prefer menu development lesson Type(Type 4, N=3) and each type showed its own distinctive characteristics. In the future research, additional literature research and empirical study will be applied for adjusting and developing more sophisticate questions of Q methodology and analysing process for gathering diverse responses and specific analysis.

A Study on the Soyangin Pathologies that originate from a Common Root Pathologic Category (소양인 동출일속 병증에 관한 연구)

  • Kim, Yun-Hee;Hwang, Min-Woo
    • Journal of Sasang Constitutional Medicine
    • /
    • v.23 no.3
    • /
    • pp.285-293
    • /
    • 2011
  • 1. Objectives: This study examines the pathologies that originate from a Common Root Pathologic Category(CRPC; 同出一屬) in the Soyangin that are suggested in the Sasang Constitutional Medicine(SCM). 2. Methods: The changes in concepts and perceptions on the Soyangin pathologies were compared across the different editions of Donguisusebowon, "Donguisusebowon, Gabo edition(東醫壽世保元甲午本) (DGO)" and "Donguisusebowon, Sinchuk edition (東醫壽世保元辛丑本) (DSC)". 3. Results and Conclusions: The Soyangin pathologies originating from a CRPC that are described in Donguisusebowon are actually detailed classifications of the Yin-deficiency Diurnal-heat symptomatology (陰虛午熱證) and the Chest-congestion symptomatology (結胸證). Lee Jema had introduced the concept of "Common Root Pathologic Category(CRPC)" to approach pathologies of similar exterior/interior classification or severity stage (mild/moderate/severe/critical) by combining them in a comprehensive, integrative pathology system. This comprehensive approach, which promotes better understanding of the Soyangin pathology and maximizes the therapeutic efficiency of SCM, constitutes the "Comprehensive Therapeutic Methodology" that is the hallmark of Sasang therapy.

A Study on the Spatial Composition Plan of Social Welfare Centers for the Intergenerational Interactions in Korea (세대 간 교류를 위한 국내 종합사회복지관의 공간구성에 관한 연구)

  • Kim, Bong Ae;Kim, Su Hee
    • Human Ecology Research
    • /
    • v.54 no.2
    • /
    • pp.131-139
    • /
    • 2016
  • This study analyzes the welfare services and spatial composition of social welfare centers that represent complex welfare facilities in order to provide basic information for the spatial planning of social welfare centers. We examined 15 social welfare centers built in the 2000s. A literature review and case study were used as research methodology. The findings are as follow. First, services provided at the surveyed facilities overlapped for seniors and the handicapped. Most social welfare centers provided welfare services for seniors, young children, and teenagers. Second, the proportion of common area, program rooms was high for spatial composition. Third, front access by car was most common (used at nine centers) for the design of the access area and used by. Fourth, shared entry and exit was most common (used at 10 centers) for the design of the entrance. Fifth, regarding space combining style, a mixed style was most frequently used (observed at seven centers) where different private areas for different service users were partly mixed on certain floors. Sixth, a corridor type was most common (used at seven centers) for the design of a corridor space where visitors could walk along the corridor to access individual rooms. Based on the findings, we propose spatial composition of social welfare centers to promote mingling and exchanges among users of different generations.

Risk Characteristic on Fat-tails of Return Distribution: An Evidence of the Korean Stock Market

  • Eom, Cheoljun
    • Asia-Pacific Journal of Business
    • /
    • v.11 no.4
    • /
    • pp.37-48
    • /
    • 2020
  • Purpose - This study empirically investigates whether the risk property included in fat-tails of return distributions is systematic or unsystematic based on the devised statistical methods. Design/methodology/approach - This study devised empirical designs based on two traditional methods: principal component analysis (PCA) and the testing method of portfolio diversification effect. The fatness of the tails in return distributions is quantitatively measured by statistical probability. Findings - According to the results, the risk property in the fat-tails of return distributions has the economic meanings of eigenvalues having a value greater than 1 through PCA, and also systematic risk that cannot be removed through portfolio diversification. In other words, the fat-tails of return distributions have the properties of the common factors, which may explain the changes of stock returns. Meanwhile, the fatness of the tails in the portfolio return distributions shows the asymmetric relationship of common factors on the tails of return distributions. The negative tail in the portfolio return distribution has a much closer relation with the property of common factors, compared to the positive tail. Research implications or Originality - This empirical evidence may complement the existing studies related to tail risk which is utilized in pricing models as a common factor.

A Study on the Institutional Improvements in the Operation and Management of Underground Shopping Malls

  • KIM, Gi-Pyoung;SEO, Jung Hwa;LEE, Yong-Kyu;LEE, Geun-Woo;YOO, Chang-Kwon
    • The Journal of Economics, Marketing and Management
    • /
    • v.10 no.1
    • /
    • pp.15-26
    • /
    • 2022
  • Purpose: The purpose of this study is to analyze the method of calculating the usage fee, rent, and lease rights of public goods necessary for the operation and management of the underground shopping mall, and to suggest systematic improvement points for the operation of the underground shopping mall. Data and Methodology: First, ordinances and regulations related to common property were investigated. Second, previous studies were analyzed. A survey was conducted with five questions that conflict with the interests of underground shopping mall merchants among the ordinances and operating systems related to the current underground shopping malls' common property. Results: Underpass merchants wanted monthly payment for the use of common property, and merchant organizations wanted to limit the increase rate with the right to use. They asked for the property value due to donation to be excluded from the loan fee, they wanted to revise the Common Property Act on the transfer of lease rights, and they wanted to revise the loan contract renewal period. Conclusion: There is a need to improve the laws and systems for underground shopping malls, and it will have to be negotiated according to the opinions of the merchants gathered among them, and it will have to be implemented in stages in the long term.