• Proceedings of the KIEE Conference
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• 2002.07a
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• pp.241-243
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• 2002

This paper proposes a DRMS(Distribution Remote Management System) based on the advanced digital kwh-meter. The proposed URMS is designed so as to be able to collect the voltage management data, the load management data as well as the used kwh data from advanced kwh-meter remotelly. It makes the integrated management of distribution system possible and enhances highly the economics of the existing remote meter-reading system based on the only used kwh-data. Also it can improve highly the quality of power supplied to the electric customer by minimizing the volt age management cost and by enhancing the efficiency of load management.

• Journal of Power System Engineering
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• v.20 no.3
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• pp.64-73
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• 2016

In this research work, an algorithm development on tracking end-point of aerial work platform with jib profile and bend-linked boom was carried out to find the X, Y and Z direction value using coordinate transformation matrix. This matrix consists of device status value(length and angle) based on camera position axis, which are sent from device controller PLUS+1 by CAN protocol. These values are used to measure the distance and angle from the camera to the end-point. Using these distance and angle value, monitoring system controls FAN/TILT/ZOOM status of camera to get an adequate scene of workplace. This program was written in Java, C# and C for mobile device. These results provide the information to the aerial work device for secure operation.

• Journal of the Korean Wood Science and Technology
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• v.26 no.2
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• pp.24-28
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• 1998

Ray cells with perforations are recorded for the first time in the Korean Celastraceae species of Euonymus sieboldiana and Tripterygium regelii and the Oleaceae species of Abeliophyllum distichum, Forsythia ovata, Ligustrum japonicum, and Osmanthus heterophylla, All these anomalous ray cells have simple perforations, and the vessel elements of all these species have simple perforation plates, Thus, in the Korean Celastraceae and Oleaceae, the perforations of ray cells appear to be identical with the types of perforation plates in the vessel elements of the same wood, The diagnostic value of the perforated ray cells is also discussed.

• Tuberculosis and Respiratory Diseases
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• v.62 no.6
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• pp.545-548
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• 2007

쯔쯔가무시병은 추수 시기에 유행하는 대표적인 급성 열성질환으로 여전히 증가 추세에 있다. 의심되는 환자에게 Doxycycline 투여 후 급속한 해열이 질환의 독특한 특징이기도 한데 Doxycycline 투여 96시간 후에도 지속적인 고열과 근육통이 있었던 환자에게 Clarithromycin으로 변경 후 급속한 해열과 함께 증상이 호전된 증례를 보고한다.

• Proceedings of the KIEE Conference
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• 1996.07c
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• pp.1753-1755
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• 1996

This paper presents an analysis of the 3D microwave oven considering its forming. The results were compared with experimental data. Finite Element Method(FEM) using edge clement is employed for the analysis. For solving the large sparse system matrix equation was solved using the parallelized QMR method. Analysis of the 3d cavity has troublesome difficulties such as spurious solutions, too many memory and long computation time. We overcome this difficulties by using edge clement for spurious solutions and the parallelized QMR method by the aid of Paralle Virtual Machine(PVM) for the memory and computation time.

• Annals of Clinical Neurophysiology
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• v.7 no.2
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• pp.114-116
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• 2005

Idiopathic facial nerve palsy, or Bell's palsy(BP) is an acute paralysis of the facial muscles innervated by the seventh cranial nerve. The cause and prognosis of recurrent BP are various. The frequency and heterogenicity of etiology suggest a predisposing factor or immune mechanisms. About 10% to 15% of patients with BP will suffer a recurrence, and less than 1.5% will have more than 4 episodes. We report four patients of chronic recurrent BPs.

• Knowledge Management Research
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• v.17 no.1
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• pp.91-111
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• 2016

This study empirically investigated the relationships between servant leadership and key variables (knowledge sharing and individual creativity), and the mediating effect of affective commitment with the survey of 213 Korean employees. Based on the sample of 213 employees, the empirical results are as followings; (1) Servant leadership is positively related to affective commitment, knowledge sharing, and creativity. (2) Affective commitment partially mediates the relationship between servant leadership and knowledge sharing. (3) Affective commitment partially mediates the relationship between servant leadership and creativity. In conclusion, this study confirmed that the servant leader and members with the affective commitment may be best qualified for knowledge sharing and creative performance. When employees recognize that their managers follow the characteristics of servant leadership, then the employees are more likely to absorb in their task, which increases creative performance and knowledge accumulation. Based on the results, this study suggests an ample implication for leaders in any organization to boost their relationships with followers and to enhance their knowledge sharing and creative idea for the growth of organization.

• Proceedings of the Korean Society of Marine Engineers Conference
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• 2005.06a
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• pp.832-839
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• 2005

It is important to understandflow characteristics and performances of sailsfor both sailors and designers who want to have efficient thrust of yacht. In this paper the viscous flows around sail-like rigid wings, which are similar to main and jib sails of a 30 feet sloop, are calculated using a CFD tool. Lift, drag and thrust forces are estimatedfor various conditions of gap distance between the two sails and the center of effort of the sail system is obtained. Wind tunnel experiments are also carried out to measure aerodynamic forces acting on the sail system and to validate the computation. It is found that the combination of two sails produces the lift force larger than the sum of that produced separately by each sail and the gap distance between the two sails is an important factor to determine total lift and thrust.

• Korean Journal of Veterinary Research
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• v.37 no.3
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• pp.601-606
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• 1997

Mulberry heart disease was associated with vitamin E and selenium deficiency of pigs. Anatomical findings of this disease were hydropericadium, extensive patchy hemorrhage of epicardium, endocardium, and discoloration of dark red color of myocardium. In histological findings were characterized by acute myocardial degeneration, extensive hemorrhage, fibrinoid degeneration of arterioles, PAS positive material deposition of arterioles and capillary thrombosis. In affected herds, feed and serum tocopherol and selenium concentration were less than normal values.

• Journal of Korean Society on Water Environment
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• v.25 no.4
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• pp.568-572
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• 2009

The adsorption characteristics of tartrazine by granular activated carbon were experimentaly investigated in the batch adsorber and the packed column. The adsorptivity of activated carbon for tartrazine was largely improved by pH control, and 98 percent of initial concentration could be removed at pH 3. It was estabilished that the adsorption equilibrium of tartrazine on granular activated carbon was sucessfully fitted by Freundlich isotherm equation in the concentration range from 50 mg/L to 1,000 mg/L. The characteristics of breakthrough curve of activated carbon packed column, which depend on the design variables such as initial concentration, bed height, and flow rate, were studied.