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공항운영인력의 ASQ 서비스성과 공유에 대한 인식 및 귀인 연구 : 인천공항 아웃소싱직원을 중심으로
송정태,김기웅,최연철,박성식,Song, Jung Tae,Kim, Kee Woong,Choi, Youn-Chul,Park, Sung Sik 한국항공운항학회 2016 한국항공운항학회지 Vol.24 No.1
Perception of outsource workers among Incheon Int'l airport employees was reviewed about the service performances of winning the ASQ awards in 11 consecutive years. 85% of Incheon airport operating authority(Incheon International Airport Corp.) and its outsource companies employees was composed of outsource workers. Thus, their thoughts might represent the overall perception of airport operating authority employees. The perception on the service performances of winning the ASQ awards was analyzed by researchers using attribution theory model. It is useful to apply attribution modeling in order to analyze the causal relationships among variables. Attribution is the process by which individuals explain the causes of behavior and events. Attribution theory is the study of models to explain those processes. According to empirical analysis, it was found outsource workers attributed the excellent service performance of Incheon airport to such an internal factor as service competence. However it was also implied they attributed to such external factors as the positive relationship and institutional support from airport and government authorities.
펌프 구동용 Line Start Permanent Magnet Motor 설계 및 특성 해석
송정태(Song Jeong Tae),이건(Li Jian),조윤현(Cho Yun Hyun),김종두(Kim Jong Doo) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.7
The Line-Start Permanent Magnet Synchronous Motor has a high efficiency and an advantage in constant speed operation regardless of the effect of load variation. In this paper, study has been carried out to make a useful mechanism for a pump system by the application of line-start permanent magnet synchronous motor. And static characteristics of the line-start permanent magnet synchronous motor are described and compared according to permanent magnet thickness through the simulation to find the demagnetization effect in the line-start permanent magnet synchronous motor for pump system. Finally this paper gives the comparison between the simulation results and the experimental results.
송정태(Jung-Tae Song),이건(Jian Li),조윤현(Yun-Hyun Cho) 대한전기학회 2009 대한전기학회 학술대회 논문집 Vol.2009 No.7
본 논문에서는 유한요소법을 이용하여 캔드형 유도전동기의 와전류 손실 해석에 대해 다루고자 한다. 본 논문에서 제시하는 캔드형 유도전동기는 회전자와 고정자 사이에 물이나 화학물질이 흐를 수 있도록 고정자와 회전자를 얇은 캔으로 밀봉한 유도전동기로 산업분야에 이용되는 특수한 전동기이다. 캔드형 유도전동기의 캔에서 와전류로 인하여 발생되는 캔 손실이 상당히 크므로 전동기의 손실을 고려해야 한다. 캔드형 유도전동기의 와전류 손실 해석을 하기 위해 이론적인 등 가회로도 법을 이용하여 와전류 손실 부분을 나타내며, 캔의 유무에 따라 와전류 손실 특성을 나타내고자 한다.
최적화된 회전자 자석 슬롯 형상을 통한 Line-Start Permanent Magnet Motor의 Cost 저감 설계
송정태(Song Jeong Tae),이건(Li Jian),조윤현(Cho Yun Hyun),김종두(Kim Jong Doo) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.7
In this paper, we will deal with the cost reduction design of a three-phase line start permanent magnet motor (LSPM) due to high cost of the permanent magnet (PM). Cost reduction can be effectively achieved by reducing PM volume and material through optimal method. Therefore, Experiment data and FEM results of the LSPM motor performances were analyzed according to slot form of PM. We can finally select the proper slot form of PM which improves the performance and reduces manufacturing cost of the LSPM motor.