• Title/Summary/Keyword: co-benefits

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Case Study for UPFC Installation (UPFC 설치사례 연구)

  • Choi, Jong-Yun;Hong, Soon-Wook;Lee, Hak-Sung;Yoon, Jong-Su
    • Proceedings of the KIEE Conference
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    • 2001.05a
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    • pp.297-300
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    • 2001
  • This paper describes case studies for UPFC installation, The studies include UPFC at Inez, KT, CSC at Marcy, NY, and UPFC at Kangjin, Korea. For each case, engineering about problem of power system and benefits of UPFC installation are presented. And operation policy of Kangjin UPFC will be established by engineering of power system.

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A Study on Estimating the Benefits by Pedestrian Environment Improvement Using CVM (조건부가치측정법(CVM)을 이용한 보행환경개선사업에 대한 편익 추정)

  • Kim, Jang-Wook;Kang, Soon-Yang;Kim, Kyung-Tae;Kang, Young-Kyun
    • Journal of Korean Society of Transportation
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    • v.30 no.4
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    • pp.7-19
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    • 2012
  • In this study of estimating the benefits of environmental materials, the CVM method used in environmental economics was applied to estimate the value of pedestrian environment improvement. After finding the Willingness To Pay (WTP) level of residents through CVM, this study attempts to calculate quantitative benefits from the pedestrian environment improvement. In this study, a survey targeting the inhabitants in Seongbuk-gu adjacent to a business area was carried out for pedestrian environment improvement considering form of payment, willingness to pay and such by establishing and showing several virtual scenarios depicting a quiet and comfortable pedestrian environment. As a result, the willingness to pay level of the Seongbuk-gu residents was 627 won of surcharge for pedestrian environment improvement per month. Additionally, the annual total benefits by pedestrian environment improvement was estimated within a range from 1,247,516,820 won to 286,305,110 won.

Gap between Users and Managers of Smart Work Center about Its Effects and Obstacles (스마트워크센터 효과 및 장애요인 : 근무자와 운영자간 비교)

  • Lim, Seung Hye;Min, Daihwan;Lili, Wan
    • Journal of Information Technology Applications and Management
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    • v.20 no.2
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    • pp.211-230
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    • 2013
  • This paper presents how users and operators of smart work centers think about benefits from and obstacles to smart work centers. First, this paper reviewed the previous literature to summarize benefits and obstacles. Then, in-depth interviews with users and operators were conducted to identify the current issues in smart work centers. Finally, a survey method was used to collect opinions of more users and managers and the co-orientation model was employed to analyze diverse patterns. This study found that users and operators mostly agree with the benefits from the smart work centers. However, they expressed various forms of disagreement over obstacles and ways to overcome the obstacles.

The Relationship between Job Dissatisfaction and Turnover in a Deluxe Hotel and a Family Restaurant (호텔 및 패밀리레스토랑 종사원의 불만족이 이직의도에 미치는 영향)

  • Jung, Hyo Sun;Yoon, Hye Hyun
    • Korean journal of food and cookery science
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    • v.31 no.5
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    • pp.635-641
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    • 2015
  • This study considers the influence of the job satisfaction of employees at deluxe hotels and family restaurants on turnover intent, and seeks to analyze the moderating effects of company type (deluxe hotel and family restaurant) on the relationship between job dissatisfaction and turnover intent. Based on a total of 408 employees, this study reviewed the reliability and validity of the results obtained from empirical research using the Amos program. The hypothesized relationships in the model were tested simultaneously using structural equation modeling (SEM). The major findings are as follows. Job dissatisfaction was separated into five factors: the work itself, promotion, pay and benefits, supervision, and co-workers. The empirical results indicate that job dissatisfaction positively influences the turnover intent of employees. More specifically, the work itself (${\beta}=0.346$, p<0.001), and supervision (${\beta}=0.281$, p<0.001) significantly affects employees' turnover intent, whereas promotion, pay and benefits, and co-workers did not. Therefore, the turnover intent of employees at hotels and family restaurants decreased when they were motivated by strategies related to job dissatisfaction. In addition, the findings demonstrated that the company type moderated the effect of job dissatisfaction (e.g., co-worker) on turnover intent. Limitations and future research directions are also discussed.

Design parameters on the fatigue characteristics of a co-cured double lap joint (양면겹치기 동시경화조인트의 피로특성에 영향을 미치는 설계변수에 관한 연구)

  • 신금철;이정주
    • Proceedings of the Korean Society For Composite Materials Conference
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    • 2002.05a
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    • pp.5-8
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    • 2002
  • The use of the co-cured joining method for composite structures is attractive due to several benefits. However, since the design stress level in cyclic loads is often smaller than the joint strength obtained from the static tensile load test, it is important to establish proper fatigue design criteria. Although some researchers have reported on co-cured joints, there are only a few papers published on the fatigue characteristics of co-cured joints. In this paper, the effect of bond parameters on the fatigue characteristics of a steel-composite co-cured double lap joint under cyclic tensile loads was experimentally investigated. We considered the surface roughness of the steel adherend and the stacking sequence of the composite adherend as bond parameters. A fatigue failure mechanism of the co-cured double lap joint was explained systematically by investigating the surfaces of failed specimens.

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Design of Open Distributed EMS (분산 개방형 EMS 설계)

  • Lee, J.Y.;Shin, C.G.;Lee, S.J.;Choi, Y.S.;Lee, J.H.;Kim, S.I;Chung, H.C.;Hill, D.S.
    • Proceedings of the KIEE Conference
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    • 1997.07c
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    • pp.767-771
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    • 1997
  • The standards and technologies developed by the standard organizations and industry consortiums, which are being driven by the computer industry and are making the foundations of the open distributed systems are presented. Its benefits and impacts on EMS industry are described. This paper contains software architecture of open distributed system software. The proposing software architecture is aiming to develop all software highly versatile and open to third party hardware and software, and able to have the incremental modifications and additions.

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New CO Laser Technology Offers Processing Benefits

  • Held, Andrew
    • Laser Solutions
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    • v.18 no.3
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    • pp.9-13
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    • 2015
  • The development of a reliable, high-power source of mind-IR laser light gives process develop important tool with unique characteristics that will significantly impact a diverse range of applications.

Pseudomonas syringae pv. tomato DC3000 Improves Escherichia coli O157:H7 Survival in Tomato Plants

  • Namgung, Min;Lim, Yeon-Jeong;Kang, Min Kyu;Oh, Chang-Sik;Park, Duck Hwan
    • Journal of Microbiology and Biotechnology
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    • v.29 no.12
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    • pp.1975-1981
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    • 2019
  • Recently, outbreaks of food-borne diseases linked to fresh produce have been an emerging public health concern worldwide. Previous research has shown that when human pathogens co-exist with plant pathogens, they have improved growth and survival rates. In this study, we have assessed whether Escherichia coli O157:H7 benefits from the existence of a phytopathogenic bacterium and the underlying mechanisms were further investigated. When Pseudomonas syringae pv. tomato DC3000 (Pst DC3000) and E. coli O157:H7 were co-inoculated by either dipping or infiltration methods, the populations of E. coli O157:H7 increased; however, no effect was observed when type three secretion system (T3SS) mutants were used instead, suggesting that E. coli O157:H7 benefits from the presence of Pst DC3000. In addition, this study confirmed that the E. coli O157:H7 populations increased when they occupied the tomato leaf intercellular space; this colonization of the interior of the leaves was possible due to the suppression of the PAMP-triggered immunity (PTI) by Pst DC3000, in particular with the AvrPto effector. In conclusion, our data support a plausible model that E. coli O157:H7 benefits from the presence of Pst DC3000 via AvrPto suppression of the PTI resistance.

Premixed Combustion Characteristics of Coal Gasification Fuel in Constant Volume Combustion Chamber (석탄가스화 연료의 정적 예혼합 연소특성)

  • Kim Tae-Kwon;Jang Jun-Young
    • Journal of Environmental Science International
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    • v.15 no.6
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    • pp.601-606
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    • 2006
  • The coal gasification fuel is important to replace petroleum fuel. Also they have many benefits for reducing the air pollution. Measurements on the combustion characteristics of synthetic gas from coal gasification have been conducted as compared with LPG in constant volume combustion chamber. The fuel is low caloric synthetic gas containing carbon monoxide 30%, hydrogen 20%, carbon dioxide 5%, and nitrogen 45%. To elucidate the combustion characteristics of the coal gasification fuel, the combustion pressures, combustion durations, and pollutants(NOx, $CO_2$, CO) are measured with equivalence ratios($\phi$), and initial pressures of fuel-air mixture in constant volume chamber. In the case of the coal gasification fuel, maximum combustion pressure and NOx concentration are lower rather than LPG fuel. However CO and $CO_2$ emission concentration are similar to that of LPG fuel.

Knowledge Sharing in Co-worker Relationships: Interaction Effect of Quality of Co-worker Exchange and Learning Goal Orientation (동료 간 지식공유에 관한 연구: 동료관계의 질과 목표성향의 상호작용효과)

  • Kim, Boyoung
    • Knowledge Management Research
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    • v.17 no.4
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    • pp.147-162
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    • 2016
  • Knowledge sharing has many benefits; however, employees are generally reluctant to share their knowledge with co-workers. This reluctance can be attributed to the facts that sharing knowledge involves the threat of losing personal competitiveness and the codification of knowledge for sharing requires additional effort. This study explains why employees engage in knowledge sharing despite the threat and cost of sharing knowledge. Specifically, it examines the effects of the quality of co-worker exchange (CWX) on knowledge sharing and the moderating effect of learning goal orientation on the relationship between CWX and knowledge sharing. Data from 186 individuals indicate that there is a positive relationship between CWX and knowledge sharing, and that this relationship is strengthened when learning goal orientation is low rather than when it is high. The theoretical and practical implications of the findings are also discussed.