• Title/Summary/Keyword: economy

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A Study on the Characteristics of Vehicle Fuel Economy by Increasing Mileage (주행거리 증가에 따른 자동차 연비 특성 연구)

  • LIM, JAE-HYUK;KIM, KI-HO;LEE, MIN-HO;PARK, JIN-SUNG;LEE, JUNG-MIN
    • Transactions of the Korean hydrogen and new energy society
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    • v.29 no.3
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    • pp.299-305
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    • 2018
  • The domestic label fuel economy measurement method is the same as the North American measurement method. The results of two test modes (city [FTP-75 mode], highway [HWFET mode]) are calculated to be equivalent to the final fuel economy value calculated as the result of five test modes reflecting various environmental conditions and driving patterns 5-cycle correction formula is used. In this study, we tried to find out that the difference between the domestic label fuel economy of the vehicle and the real road fuel economy felt by the driver compared to the new vehicle condition as the mileage increases. Using domestic label fuel economy measurement method, Four gasoline vehicles and four diesel vehicles were tested for the fuel economy of a new vehicle with a mileage of 150 km or less and domestic fuel economy test $6,500{\pm}1,000km$ durability condition and 15,000 km durability. It is confirmed that the certain portion (6,500 km endurance vehicle) The increase in mileage did not affect the fuel economy or the emission gas significantly, indicating that vehicle durability was limited.

Exploring of the Economy of Communion as Communities of Practice (실천공동체로서 나눔 경제 운영 탐색)

  • Kim, Jin-Hee;Kim, Byoung-Soo
    • Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
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    • v.7 no.6
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    • pp.937-945
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    • 2017
  • Economy of Communion (EoC) is an emerging economic principle that recognizes the dilemma of traditional perspectives and turns to human centered values and ideas. Furthermore the EoC encompasses all the principles derives from free market economy, ethical norm and social solidarity. This study aims to understand Economy of Communion concepts and its ripple effects under current Korean economy condition which mainly follows Neo-liberalism. Korean economy needs new paradigm to deal with intensifying economical inequality in Korea these days. By understanding EoC's primary value and studying research cases and Sungsimdang, Seokwangsa one of EoC enterprise cases in Korea, this study suggests new economic paradigm. In response to the needs, two important practices should be manifested through fraternity: 1) mutural equity, and 2) dissemination of giving culture. These are construct the economy of communion, which is defined as unique humanism. This study is also expected to suggest new paradigm that establishes new economy system that can cover current economy system's problems.

A Study on Applying the Sharing Economy to Libraries (공유경제의 도서관 적용에 관한 연구)

  • Noh, Younghee
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.27 no.3
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    • pp.75-98
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    • 2016
  • The sharing economy has been evaluated as a sustainable system dominating the next 10 years and one of the 10 ideas which can change the world. The purpose of this study is to reveal whether there is any relevance between the sharing economy and libraries, if the library can be the core model of the sharing economy, and to propose how libraries could contribute to a sharing economy. To this end, literature related to the sharing economy and the actual cases of its implementation were analyzed. The results are as follows: First, the library was evaluated as a successful model of the sharing economy because it has shared information and tools for centuries. Therefore, it was concluded that the library could be an institution that can lead to a sharing economy. Second, it was analyzed that the library could foster the sharing economy through offering its space, and functioning as the infinite imagination room and smart work center, sharing goods through Little Free Libraries, as well as various other resources of library, and sharing various types of knowledge including reference services. Third, it can be said that the possibility of realizing a shared economy in libraries is inexhaustible, and librarians can play an active role and will positively influence the success or failure in terms of realizing the sharing economy. In the future, there needs to be a study to measure the practices and the performance of the sharing economy of libraries.

An Exploratory Study on Sharing Economy Network Building in Local Destinations : Perception of the Sharing Economy Services of Accommodation and Car Rental in Local Communities (지역관광지의 공유경제 네트워크 구축을 위한 탐색적 고찰 : 지역사회 기반 숙박 및 차량 공유경제서비스 운영에 대한 인식을 중심으로)

  • Min, Woongki;Kim, Sangtae
    • 지역과문화
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    • v.6 no.1
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    • pp.1-27
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    • 2019
  • The study explores the way how sharing economy services of accommodation and car rental, one of social issues actively discussed today are settled in the process of sharing economy building in local destinations. The result shows that average consumers expressed their favorable attitude toward the sharing economy services. However, the consumer's attitude didn't directly affect the consumer's positive perception that there is need for local sharing economy service network and the educational system for local residents and the network helps the economy. Instead consumer's knowledge of sharing economy services and their eagerness to learn the knowledge as parameters related the consumer's attitude to their perceptions; the consumer's attitude affected indirectly their perceptions. The study shows that local communities and their residents' efforts are not enough simply to activate the sharing economy services in the development process of tourist resources, while it asks consumers to learn information and knowledge of the sharing economy. Therefore, consumers and residents should interact and communicate closely with each other to help the development of local destinations and tourist resources based on sharing economy.

Evaluation of Fuel Economy for a Parallel Hybrid Electric Vehicle

  • Park, Dookhwan;Kim, Hyunsoo
    • Journal of Mechanical Science and Technology
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    • v.16 no.10
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    • pp.1287-1295
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    • 2002
  • In this work, the fuel economy of a parallel hybrid electric vehicle is investigated. A vehicle control algorithm which yields operating points where operational cost of HEV is minimal is suggested. The operational cost of HEV is decided considering both the cost of fossil fuel consumed by an engine and the cost of electricity consumed by an electric motor. A procedure for obtaining the operating points of minimal fuel consumption is introduced. Simulations are carried out for 3 variations of HEV and the results are compared to the fuel economy of a conventional vehicle in order to investigate the effect of hybridization. Simulation results show that HEV with the vehicle control algorithm suggested in this work has a fuel economy 45% better than the conventional vehicle if braking energy is recuperated fully by regeneration and idling of the engine is eliminated. The vehicle modification is also investigated to obtain the target fuel economy set in PNGV program.

A Study on the New Developmental Ststegies for Promotion of Rural Economy (농촌지역 산업진흥을 위한 새로운 발전전략의 모색)

  • 이동필
    • Journal of Korean Society of Rural Planning
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    • v.1 no.1
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    • pp.111-124
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    • 1995
  • This paper discuss on the strategies for rural economic development Maul purposes of this paper are as follow: First, to review importance of economic promotion in the integrated rural developmental scheme, Second, to identify structural problems of rural economy, and Third, to suggest promotional strategies for the development of rural economy. Economic vitalization is the very important strategy to support daily life of rural population. Since rural economy heavily depends on agricultural sector which has relatively low productivities, diversification of rural economy through introduction of 2nd and 3rd industrial sector is one of the most urgent tasks in rural Korea. Integrated, localized, and planning oriented approaches with reformation of incentive system for the development of rural economy are strongly recommended as new strategies.

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Economic Contributions to Regional Economy of Home-based family Businesses (재택가족기업의 지역경제 기여도)

  • Kim Hyun-Jung;Joung Soon-Hee;Yuh Yoon-Kyung
    • Journal of Families and Better Life
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    • v.23 no.1 s.73
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    • pp.53-63
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    • 2005
  • Purpose of this study was to examine economic contributions to regional economic of home-based family businesses. Results showed that home-based family businesses create additional employments within the region, contribute to taxation of the regional economy, and improve regional financing. In addition, home-based family businesses do contribute to regional economy through consuming goods and services within the region and providing goods and services to the region. Through analyzing economic contributions to regional economy of home-based family businesses, it can be suggested that strong support for the home-based family businesses is needed for growth of the regional economy.

The New Paradigm of Circular Economy and Crossing-culture In the Network-manufacture System

  • Yang, Xiao-Yuan;Huang, Chuan-Kun
    • Proceedings of the Korea Society for Industrial Systems Conference
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    • 2007.02a
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    • pp.181-188
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    • 2007
  • In this paper, the management thoughts of The network-manufacture based on virtual-agile organization is Brief summarized, then an explanation had been made about the virtual circulation economy patterns paradigm, which is integrated the virtual-agile manufacture and circulation economy theory, the critical content of this paradigm, at last we recognized the virtual-agile organization pattern circulation economy is one important trend of the network-manufacture development in the future.

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A Study on the Fuel Economy Prediction Method Based on Vehicle Power Analysis of PRIUS III (프리우스 III의 차량 출력 분석에 기초한 연비 예측 방안에 관한 연구)

  • Chung, Jae-Woo;Seo, Young-Ho;Choi, Yong-Jun;Choi, Sung-Eun;Kim, Hyoung-Gu;Jung, Ki-Yun
    • Transactions of the Korean Society of Automotive Engineers
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    • v.19 no.6
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    • pp.97-106
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    • 2011
  • Both an optimal design of the engine operating strategy and fuel economy prediction technique for a HEV under the vehicle driving condition are very crucial for the development of vehicle fuel economy performance. Thus, in this study, engine operating characteristics of PRIUS III were analyzed with vehicle running conditions and the correlations between vehicle tractive power and fuel consumption were introduced. As a result, fuel economy performance of PRIUS III with various test modes were predicted and verified. Errors of predicted fuel economy were between -5% and -1%.

Simulation Study on the Fuel Economy of Plug-in Type Hybrid Electric Vehicle (외부충전 방식 하이브리드 전기자동차의 연비 시뮬레이션)

  • 최득환;김현수
    • Transactions of the Korean Society of Automotive Engineers
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    • v.10 no.5
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    • pp.121-128
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    • 2002
  • In this paper, the fuel economy of plug-in type hybrid electric vehicle is investigated through simulation. For the simulation study, 2 shaft type parallel hybrid powertrain is chosen and its operation modes are described. The operation algorithm which yields operation points of minimal fuel cost is suggested. Dynamic model fur operation of HEV and simulation procedure is described. Simulation results of fuel economy is compared to non plug-in type HEV as well as conventional vehicle. With total driving distance of 37km and full usage of 2kwh of electric energy stored in battery pack, plug-in type HEV shows 28-30% improved fuel economy compared to non plug-in type HEV and 86-93% improved fuel economy compared to conventional vehicle.