• 한국시뮬레이션학회논문지
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• 제8권1호
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• pp.35-49
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• 1999

The CC-NUMA based, distributed shared memory is an emerging architecture for multiprocessor computer systems because of its scalability and easy of programming. In this paper, we analyzed performance of a ring-based, CC-NUMA multiprocessor computer system using a commercial workload targeted for popular OLTP applications. Based on the traces collected from real machines, the characteristics of the commercial workload could be obtained. The simulation results showed that the bottleneck on the ring could be effectively removed by using a dual ring structure. We believe our simulation methodology and results will help us to design better multiprocessor computer systems for commercial application domains.

• 한국콘텐츠학회논문지
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• 제16권12호
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• pp.667-676
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• 2016

본 연구는 한국의 사회적기업이 사회적 경제의 핵심조직으로 급격히 성장하고 있는 상황에서 사회적기업과 영리기업종사자들을 대상으로 조직문화의 차이를 확인하고, 조직성과에 미치는 영향을 평가하였다. 주요 결과는 다음과 같다. 첫째, 사회적기업과 영리기업종사자의 특성차이 분석결과 사회적기업이 여성비율이 많고, 연령이 높았으며 연봉은 영리기업이 많았다. 사회적기업이 저임금의 여성 노인을 많이 채용하고 있음을 알 수 있다. 둘째, 조직문화차이 분석결과 합리문화는 영리기업이 높고, 집단문화는 사회적기업이 높았다. 영리기업이 생산성과 효율성, 계획수립과 목표설정, 목표달성 위주의 평가, 실적위주의 평가를 중요시하는 반면 사회적기업이 친화와 참여, 종업원 개개인의 개발, 집단사기와 응집력, 상호협조 및 신뢰감을 중요시하고 있었다. 또한, 사회적성과와 경제적성과 모두 사회적기업이 영리기업에 비하여 높았다. 사회적기업이 종사자 참여와 이해에 기반하여 투명하게 조직을 운영하고 있어서 경제적성과도 높게 인식하는 것으로 판단된다. 셋째, 사회적성과는 영리기업은 개발문화 집단문화, 사회적기업은 개발문화 집단문화 위계문화가 높을수록 증가하였다. 경제적성과는 영리기업은 합리문화가 낮을수록 증가하였고, 사회적기업은 집단문화가 높을수록 증가하였다. 아울러 사회적기업 종사자들이 영리기업종사자들에 비하여 사회적성과와 경제적 성과가 높다고 인식하고 있었다. 요컨대, 한국 사회적기업이 영리기업과 차별적인 조직문화를 형성해나가고 있으며, 이러한 조직문화가 조직성과를 달성하는데 기여하고 있는 것으로 판단된다.

• 한국자동차공학회논문집
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• 제25권1호
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• pp.103-110
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• 2017

Most commercial vehicles have adopted the hydraulic power steering system. To reduce fuel consumption and to improve steering controllability, a hybrid electric power steering system is being developed for commercial vehicles. In this study, the HILS (Hardware In the Loop Simulation) system equipped with a commercial vehicle hybrid electric power steering system was developed and the vehicle dynamic performance of a truck with the steering system was evaluated. The hybrid electric power steering system is composed of the EHPS motor pump, column mounted EPS system, and ball nut steering gear box for heavy commercial vehicles. The accuracy of vehicle models equipped with the HILS system was verified with comparisons between the simulation results and field test results. The road reaction forces of the steering system were generated from the vehicle model and verified using field test results. Step steering tests using the verified HILS system were carried out and the performance of a newly developed commercial vehicle hybrid electric power steering system was evaluated.

• 한국식품조리과학회지
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• 제21권5호
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• pp.693-702
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• 2005

The purpose of this study was to provide useful information for establishing efficient marketing direction by investigating the performance (satisfaction) and importance for the quality of Korean traditional commercial beverages. The subjects were 320 participants (130 males and 190 females) in Daegu and Kyungpook. The importance and satisfaction score of Korean traditional commercial beverages were measured on a five-point Likert scale. The results are summarized as follows. The overall satisfaction score on Korean traditional commercial beverages was 2.96 points. The beverages with the highest satisfaction scores were 'green tea' (3.48 points) 'shickhae' (3.35 points) and 'rice tea' (3.34 points) whereas 'ppongip tea' (2.58 points) 'gugija tea' (2.63 points) and 'gukhwa tea' (2.64 points) scored lowly. From the analysis of the difference between importance and performance of Korean traditional commercial beverages, importance (3.11 points) was rated much higher than performance (3.66 points). In the IPA result, it was important to continuously maintain 'taste', 'hygiene', 'freshness', 'period of circulation', 'wrapping condition' etc. Some items such as 'nutrition', 'safety', 'health', and 'ingredient' did not need intensive care and operation.

• The Journal of Asian Finance, Economics and Business
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• 제9권3호
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• pp.43-51
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• 2022

This paper examines the main factors affecting the bank performance under the Basel II implementation in Vietnam, a transitional economy in Asia. We pay special attention to the implementation duration of the Basel II convention and how it affects profitability. Thereby, we can evaluate the effectiveness of Basel II in the whole system according to the roadmap to 2020. We employ the panel data regression method to analyze a sample of 300 bank-year observations from 25 commercial banks during the 2008-2019 period. Our empirical findings show that the size of the bank, net interest margin, state ownership, and Basel II convention have positive effects on bank profitability. However, our empirical findings indicate that bank age and branch number negatively reduce bank performance. Finally, our results indicate that commercial banks earn extra profit from delaying the implementation of Basel II. However, commercial banks will encounter higher credit, and operational risks arising from delaying the implementation of Basel II standards. Therefore, our study contributes to the insights into the bank's management to enhance profitability, especially after implementing Basel II in a transitional economy. Finally, our study also provides policy implications for bank managers and banking supervisory to maintain the sustainable development of the banking system.

• 기술혁신학회지
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• 제2권3호
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• pp.1-18
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• 1999

The purpose of this research is to analyze the influence of the factors on the performance of na-tional R&D support program. A LISREL model was employed to analyze the relationship between the factors and the performance which was measured in the technological and commercial aspect. The result of the study reveals the R&D management business administration the age and the size of the company industry domain are the factors whose relationship with the performance are sta-tistically significant.

• The Journal of Asian Finance, Economics and Business
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• 제9권7호
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• pp.53-62
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• 2022

Commercial banks have a significant impact on the economy of Vietnam because they provide the majority of transactional capital. Therefore, the operational efficiency of commercial banks is a viral topic for the study of the Vietnamese banking system. The research aims to examine the efficiency and inefficiency of joint-stock commercial banks in Vietnam from 2016 to 2020 and then classify them into the efficient group and inefficient group. The study employs the time series data of 29 joint-stock commercial banks during the period 2016-2020. Based on the data collected from the annual audited financial statements of 29 Vietnamese joint-stock commercial banks, the authors select input and output variables for the standard DEA models and anti-efficient DEA models. This research uses two stages, first, by applying the standard DEA model, we investigate the efficient banks; second, by employing the anti-efficient DEA model, we find out the inefficient banks. The results reveal that the average efficiency score of 29 joint-stock commercial banks tends to increase in the period 2016-2018 and decrease gradually in the period 2019-2020. The findings of this study suggest that several small and medium-sized banks in the Vietnamese banking sector have both promising and risky performances and the efficiency of state-owned commercial banks has also improved significantly during the study period.

• Journal of Power Electronics
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• 제12권1호
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• pp.215-222
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• 2012

Lighting represents a significant component of commercial buildings, particularly office buildings. Fluorescent lighting is invariably used in all commercial, industrial and residential areas. A significant amount of lighting energy is wasted every day by leaving the lights on and not utilizing daylight energy. However, if daylight illuminance can be harnessed, this will reduce the electricity consumption of fluorescent lamps and save energy. This paper explains possible significant savings in lighting energy consumption and hence in costs, without reducing the performance and visual satisfaction in office or industrial buildings. It is proposed to obtain energy saving by reducing the supply voltage without degradation in lighting performance. Experimental results confirm that as much as 20% of electrical energy can be saved by reducing about 9% of the supply voltage, without noticeably affecting light output while complying with lighting standard limits.

• 한국국방경영분석학회지
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• 제27권2호
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• pp.110-123
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• 2001

This paper deals with the application of commercial mobile communication system for improvement of the military mobile wireless communication systems. Currently, commercial mobile communication systems are rapidly growing from first and second Generation system to third and forth Generation system, which can provide multimedia service of high speed and high capacity(e.g., IMT-2000). If we adapt these emerging commercial technology for the military communication, the military will have many benefits in terms of cost saving, early operational deployment and performance. And it is possible to support the communication necessary in the future warfield operational environment. Therefore, we analyzed differences between commercial systems and military systems, and adaptability in terms of security, survivability and performance. Finally, we proposed a stepwise utilization scheme to improve the military mobile wireless communication

• 한국유체기계학회 논문집
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• 제6권3호
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• pp.44-50
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• 2003

An experiment is conducted for measuring the performance of an air tool, which is operated at 100,000 RPM in an unloaded state with very low torque. A 551 kPa in gauge pressure is supply to the inlet of an air tool. An experimental apparatus is developed as a friction type dynamometer. Inlet total pressure, air flow rate, rotational speed and operating force are measured simultaneously. Torque, output power and specific output power are obtained with different rotational speeds. Those are compared with the experimental results which were obtained by a commercial dynamometer. However, no commercial dynamometers are available for measuring the torque above 30,000 RPM. In order to reduce the rotational speed, a reduction gear is applied between the air tool and the commercial dynamometer. Torque and power obtained by the commercial dynamometer show $55\%$ lower than those obtained by the developed friction type dynamometer, because the mass is added to the rotor of air tool for the braking system of the commercial dynamometer and power loss is generated by the reduction gear. From the compared results, the friction type dynamometer should be applied for measuring the performance of the air tool operating at low torque and high RPM.