• Title/Summary/Keyword: Performance Results

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A Case Study of Applying Performance Technology to Diagnose and Improve Skill Education Systems

  • LEE, Sang Soo
    • Educational Technology International
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    • v.8 no.1
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    • pp.41-56
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    • 2007
  • This study used the performance technology model of Robinson and Robinson to diagnose and solve the problems of the "N" organization. The performance relationship map of the "N" organization was constructed based on the results of the benchmarking, surveys, interviews, and participatory observations. According to the results of analysis, the research team suggested several interventions in three areas: textbooks, educational methods, and educational environments. The study concluded that performance technology is a very effective way to see performance problems from a holistic viewpoint and solve the problems scientifically based on this case study.

A Study on the Evaluation Model of Government-funded Research Institutes Using AHP (AHP를 이용한 정부출연연구소 평가 모형 연구)

  • Son, Eun Il;Baek, Chang Hwa
    • Journal of Korean Society for Quality Management
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    • v.50 no.4
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    • pp.665-677
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    • 2022
  • Purpose: The purpose of this study is to analyze the current status and investigate relevant indicators so that R&D performance evaluation suitable for government-funded research institutes can proceed. A suitable performance evaluation model was presented based on the surveyed indicators. Based on the presented performance evaluation model, the importance was analyzed to calculate the weight for each indicator of the performance evaluation model. Methods: The method applied in this study presented a performance evaluation model based on the organizational performance evaluation cases of advanced overseas countries. By using the AHP(Analytic Hierarchy Process) technique, the weight of each indicator of the performance evaluation model was studied. Results: As a result of examining the indicators necessary for the evaluation model, focusing on overseas cases, 13 evaluation items were derived. A weight was calculated for the importance of the study results. And the scientific/technical research results showed the highest excellence. Conclusion: Key indicators of performance evaluation suitable for government-funded research institutes were derived and presented through detailed modeling in three stages. A realistic model that can objectively evaluate the performance of government-funded research institutes was proposed using the AHP technique.

Performance Simulation for the Variation of Fuel Injection Nozzle Configurations in Medium Speed Diesel Engine (중형 디젤 엔진의 연료분사노즐 형상에 따른 성능 해석 연구)

  • Kim, Ki-Doo;Youn, Wook-Hyun;Kim, Byong-Seok;Ha, Ji-Soo;Ahn, Kwang-Hean;Kim, Ju-Tae
    • Journal of Advanced Marine Engineering and Technology
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    • v.30 no.6
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    • pp.662-668
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    • 2006
  • The effects of fuel injection nozzle hole on the NOx emission and fuel oil consumption of medium speed diesel engine HYUNDAI HiMSEN 6H21/32 engine are investigated by engine performance simulation. The results of performance simulation are verified by experimental results of NOx omission fuel oil consumption, cylinder pressure, and heat release rate according to the variation of the number of fuel injection nozzle hole and engine load. The performance simulations are also carried out to optimize the fuel injection nozzle of 6H21/32 engine in respect to the NOx emission and fuel oil consumption. The engine performance measurements are performed to verify the results of performance simulation and to investigate the effects of fuel injection nozzle on engine performance. The results of measurement indicate that significant NOx reduction can be achieved with minimum deterioration in fuel oil consumption by optimizing the geometry of fuel injection nozzle on 6H21/32 engine.

Anti-wear performance and life evaluation of wheel bearing type greases

  • Kim Jung-Young;Chung Keun-Wo;Kim Young-Wun;Jo Won-Oh
    • Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference
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    • 2004.11a
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    • pp.111-116
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    • 2004
  • Li-complex and urea type greases (each 10 species) which were furnished by Chang-Am LS, analyzed anti-wear performance into fretting wear tester & four-bail wear tester. from the results of fretting wear test, the wear volume of Li-complex greases are $4.6\~8.9mg\;and\;8.3\~14.4mg$ with the test of urea greases. The anti-wear performance for 4-ball wear test of greases produced results around 0.5mm at the value of WSD. The grease life performance were evaluated by SKF-ROF Grease Tester and wheel bearing life tester. From the results of SKF-ROF tester, the life performance evaluated by whole working time produced results $50\~300hr$ with the Li-complex greases and 100-1000hr with the urea greases. That is to say, in spite of severe condition at the higher of $10^{\circ}C$ reaction temp, the life performance with Urea type greases are much superior to Li-complex type greases. Prior to wheel bearing life tester, the grease selected performance evaluation(=anti-wear test) are tested by wheel bearing tester. In this results, we can confirm results those are similar with SKF-ROF tester. In this study, we can draw two major conclusions, one is that Li-complex greases are superior to urea greases with anti-wear properties and the other is that urea greases are much superior to Li-complex greases with life performance.

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Comparison of job satisfaction, turnover intention, and job performance by dental hygienists' clinical assistance and preventive work (치과위생사의 진료협조업무와 예방처치업무에 따른 직무만족도, 이직의도 및 직무성과 비교)

  • Seong, Mi-Gyung;Kim, Yu-Rin
    • Journal of Korean society of Dental Hygiene
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    • v.19 no.2
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    • pp.221-229
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    • 2019
  • Objectives: The purpose of this study was to confirm job satisfaction, job performance, and turnover intention according to dental hygienists' clinical assistance and preventive work. Methods: The collected data (N=380) were analyzed with independent t-tests and Pearson correlations using SPSS Statistics ver. 21.0 (IBM Co., Armonk, NY, USA). Results: The results indicated that the higher the overall job satisfaction of the dental hygienist, the higher their job performance and the lower their turnover intention (p<0.05). The results of the comparison of job satisfaction showed that preventive work was higher than dental hygienists' clinical assistance in all items except "I was pleased with work" (p<0.05). The results of the comparison of job performance showed that preventive work was higher than dental hygienists' clinical assistance in all items except "I have never complained, even if things go wrong" (p<0.05). The results of the comparison of turnover intention showed that clinical assistance was higher than dental hygienists' preventive work in all items (p<0.05). Conclusions: Our results demonstrate that job satisfaction, turnover intentions, and job performance have positive effects for preventive work. Therefore, dental clinics need to improve the actual environment so that dental hygienists can focus on preventive work.

A Study on the Effect of Service Providers'Personality on Service Training Performance (서비스 제공자의 성격이 서비스 교육성과에 미치는 영향에 관한 연구)

  • Kim, Min-Joo;Park, Jong-Woo
    • Journal of Korean Society for Quality Management
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    • v.39 no.1
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    • pp.1-14
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    • 2011
  • This study investigates the future direction of service training performance and employment of service oriented employees by examining the element of personality which affects the results of service training performance. The empirical analysis of the study is as follows: First, regarding the effect of an employee's personality on the results of service training performance, ambition and prudence influenced their training performance. Second, according to the verification of whether the number of service training could affect the relation between personality and service training performance, it was found that ambition, sociability, and intellectual curiosity were moderated effect. Third, a study on whether the academic qualification of employees could affect the relation between personality and service training results showed that it had no relation with academic backgrounds.

Three-dimensional Teleoperation Performance Measures: Their correlations and effects of task difficulty

  • Park, Sung Ha
    • Journal of the Ergonomics Society of Korea
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    • v.19 no.2
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    • pp.33-45
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    • 2000
  • Present study was performed to compare different types of teleoperation performance measures. A modified Cooper-Harper rating scale and a distance measure were newly introduced and compared to two traditional measures, the error rate and time-to-completion. Participants performed a simulated telerobotic task with varying visual display interfaces. The results of correlation analyses revealed that the modified Cooper-Harper ratings had a close association with the error rate measure. The distance measure also appeared to be a consistent performance measure, which accounted for both the error rate and time-to-completion. A further analysis, however, showed that the effectiveness of each performance measure varied with the level of task difficulty. The results imply that the choice of performance measure should be made based on the task difficulty as well as the particular task being studied. The results revealed here also have implication for performance measures of various display and control systems including aircraft navigation displays and tactical displays.

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Aero-acoustic Performance Analysis Method of Regenerative Blower (재생형 송풍기의 공력음향학적 성능 해석 방법)

  • Lee, Chan;Kil, Hyun Gwon;Kim, Gang Chun;Kim, Jun Gon;Ma, Jae Hyun;Chung, Kyung Ho
    • The KSFM Journal of Fluid Machinery
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    • v.16 no.2
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    • pp.15-20
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    • 2013
  • An aero-acoustic performance analysis method of regenerative blower is developed as one of the FANDAS codes. The aerodynamic performance of regenerative blower is predicted by using momentum exchange theory coupled with pressure loss and leakage flow models. Based on the performance prediction results, the noise level and spectrum of regenerative blower are predicted by discrete frequency and broadband noise models. The combination of the performance and the noise prediction methods gives aero-acoustic performance map and noise spectrum analysis results, which are well-agreed with the actual measurement results within a few percent relative error.

The Effect of the Diameter and Rotational Velocity on the Cavitation Performance of a Turbopump Inducer (터보펌프 인듀서의 흡입성능에 대한 직경과 회전속도의 영향)

  • Sohn, Dong Kee;Koo, Hyun Chul;Cha, Bong Jun;Yang, Soo Seok;Lee, Dae Sung
    • 유체기계공업학회:학술대회논문집
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    • 2001.11a
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    • pp.229-234
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    • 2001
  • The turbopump inducer cavitation is very important for the success of a Liquid rocket engine. In this study the performance test and cavitation performance test were carried out at various rotational speed with two different diameter inducers. The rotational speed were varied 4000, 6000, 8000 rpm and the variation to the diameter of an inducer were taken as design size and 2 times enlarged size. The major results of the present study were as follows. 1. The hydraulic performance results showed that the similarity was met over the entire test range of the present study. 2. The blade thickness effect was examined and showed that the increased blade thickness resulted in decreased efficiency and worse cavitation performance for large tip clearance. 3. The cavitation performance test results showed that the breakdown NPSH increases as the flow coefficient and does not affected by the rotational speed.

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Case Study on the Development of Performance Indicators of Industrial R&D Program (산업 R&D 프로그램의 성과지표개발에 관한 사례연구)

  • Yang, Chun-Hee;Lee, Jae-Ha
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.35 no.2
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    • pp.1-8
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    • 2012
  • The primary goal of this study is to develop proper performance indicators for evaluating the results of industrial R&D program. We define R&D results include output, transfer, outcome, and impact in the performance of R&D program. Performance indicators are focused on the results of R&D commercialization, building the industrial foundations as performance proxy of R&D program of Ministry of Knowledge Economy. And we first try to design the coupled structure as logical model between R&D program goals and performance indicators. The coupled structure is represented with objectives of group unit of R&D program, implementation process, R&D practical stage, and the ultimate goal of R&D program.