• 대한설비공학회:학술대회논문집
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• 대한설비공학회 2004년도 하계학술발표 논문집
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• pp.40-40
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• 2004

• 대한설비공학회:학술대회논문집
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• 대한설비공학회 2005년도 하계학술발표대회
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• pp.22-22
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• 2005

• 대한설비공학회:학술대회논문집
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• 대한설비공학회 2005년도 하계학술발표대회
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• pp.104-104
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• 2005

• 대한전기학회:학술대회논문집
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• 대한전기학회 2002년도 하계학술대회 논문집 B
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• pp.802-804
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• 2002

An analysis of the skeleton type BLDC motor is presented. The single phase skeleton type BLDC motor consists of the stator, rotor with the permanent magnet, and drive circuit with hall sensors that detect the rotor position. The major factors for the initial starting, efficiency, and torque ripples of the skeleton type BLDC motor are the detent groove of the stator and the lead angle of the phase voltage. The performance characteristics according to the angle and height of the detent groove is analyzed. The optimum lead angles of the phase voltage with the torque ripple and motor efficiency is described using the finite element method.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1996년도 하계학술대회 논문집 A
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• pp.382-384
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• 1996

This paper introduces the controller development of booster multi-pump system with constantly estimated control algorithm. Through analyzing by the experiment of optimal pressure with a certain flow rate. The larger pressure processing apparatus in microprocessor makes optimal water-supplying. This method is implemented with the only pure control algorithm without any other mechanical or circuitry apparatus. Also, Pump's life is lengthened by exchanging simple on, off and rotational inverter control. Optimal condition for pump is adjusted by the inverter control, and compact control panel helps the booster system install in real field.

• 대한치과의사협회지
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• 제46권2호통권465호
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• pp.88-99
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• 2008

In growing patients with Class III malocclusion and midfacial deficiency, the treatment protocol calls for orthopedic maxillary protraction and clinicians choose the facemask therapy generally. But facemask is not esthetic or comfortable to patients because it should be worn extraorally. Consequently it is difficult to obtain patients cooperation, and this often influences the treatment effects negatively. MTA (modified tandem appliance), that is a small intraoral appliance, is carried conveniently and esthetic relatively. So it seemed more patient-friendly than a facemask. While the treatment effect of this is similar to that of a facemask. This report presents skeletal Class III malocclusion two cases treated by MTA with good results.

• 전기학회논문지P
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• 제58권2호
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• pp.196-201
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• 2009

In this paper, We developed specifications light-way lighting appliance for efficient construction Wiring embody lighting appliance is convenient for divergence of circuit and arrangement construction of lamp. Also, it can be shortened construction period because series construction is available. Improved product is high work efficiency because the volume is small and the weight is light. Power line and line of communication are received each tray, so equipment is secure. We believe that the product is available for gallery, museum, and parking lot etc.

• 한국정보통신설비학회:학술대회논문집
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• 한국정보통신설비학회 2007년도 학술대회
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• pp.100-103
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• 2007

For several ten years, the Internet and IT services have been greatly developed in PC area and with this, new BM and services with terminals like Post-PC and Non-PC types will come into the spotlight in few years. In various fields of service, terminals exclusive to individual service come into the market already, the hardware and the contents used in the terminals are circulating. The communication service providers are very enthusiastic about developing and providing various services in order to overcome the growth limit of existing network connection service. And they think that providing the Non-PC type Information Appliance services will make added values and be sources of making profits in next generation. Hereupon we are going to observe the Non-PC type Information Appliance services, the structure of the service platform that make that services possible, and their prospect.

• 품질경영학회지
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• 제31권2호
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• pp.1-16
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• 2003

The purpose of this research is to examine the influence of after sales service quality in the Korean home appliance. This study is assumed that after sales service quality is composed of prices of service and corporate image as well as technical quality and functional quality. Also, this study examined that how after sales service quality have influence on the repurchase and word-of-mouth effect, and the relationship between the repurchase and word-of-mouth effect was identified in this research. To perform the empirical study, 204 questionnaires from persons who experience taking after sales services with charge for their home appliance are gathered and analyzed. The results make contribution to the Korean home appliance manufacturing company to newly recognize about the factors of after sales services quality. Further empirical or theoretical study for finding the factors of after sales services quality can be recommended in the presence of competitive service industry.

• 대한치과교정학회지
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• 제14권2호
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• pp.273-285
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• 1984

The present paper describes 4 clinical cases of Hellman dental age III A group of functional Class III malocclusion in which the horsehoe appliance was applied to obtain normal anteroposterior relationship between jaws. What is the most noteworthy in the result from the use of this appliance is that minimum down and backward rotation during backward repositioning of the mandible is noticed and the excellent retentive property in itself makers allowance for effective orthopedic correction in mixed dentition with anterior crossbite.