• Proceedings of the KIEE Conference
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• 1997.11a
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• pp.55-57
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• 1997

This paper develops the advanced method for the calculation of the equivalent circuit parameters of induction motor. An Induction motor is magnetically coupled system. But the conventional motor (the permeance method) calculates the each component of parameters separately. And it highly depends on the experimental factors and experiences to compensate the errors due to the some assumptions. Rut the proposed method calculates the parameters fully from the results of 2 dimensional finite element analysis. So the complexity in geometry and the non linearity of induction motor can be considered. And the computational cost is reduced compared with the conventional field and circuit approach. The results are compared with parameters from the permeance method. And it is verified by the comparison with the experimental results.

• Culinary science and hospitality research
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• v.13 no.3
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• pp.91-104
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• 2007

The purpose of the study is to examine culinary students' perception of the quality of an OJT(on the job training) program and to investigate their satisfaction levels clustered by the differences in it. Through the survey, the data were obtained from 348 culinary students who had experiences of an OJT program. They were analyzed by SPSS 13.0 and divided into four groups based on the differences of perception. As a result, this study showed that the more the students had a positive perception of OJT program, the more they were satisfied with the program. Therefore, this study will be of great use to seek for alternatives for the promotion of OJT program in the future.

• Proceedings of the Korean Society For Composite Materials Conference
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• 2003.04a
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• pp.57-60
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• 2003

This Paper contains the development procedure of Mach small-scaled composite rotor blade for helicopter articulated rotor system. This mach small-scaled composite blade design is conducted by using CORDAS program developed by KARI. The Dynamic analysis for an articulated rotor system with this blade is conducted by using FLIGHTLAB which is commercial software for helicopter analysis. Also the optimizing procedure of iterative design was described. The designed composite blades were manufactured after establishing the effective curing method. For small-scaled rotor test, strain gauges were embedded in composite blade spar to obtain bending & torsion strain value. To verify sectional properties of a blade, the bench test is accomplished. After comparing a designed data and tested data, Dynamic Calculation was repeated using tested data. Through this research, experiences of mach small-scaled composite blade development were accumulated and will be applied to the related research field.

• Korean System Dynamics Review
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• v.3 no.1
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• pp.105-129
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• 2002

IT companies make a lot of efforts for sharing and utilizing of experiences of their members and transforming them into the organizational knowledge as a competitive core. But they face a dilemma that they have to spend time and financial resource to perform activities around knowledge management for the long-term gains, while carrying field-works for making short-term profits. As an initial attempt to tackle this managerial problem, this paper try to investigate the mechanism of knowledge management in a small IT company in Korea with a synthetic view-point using system dynamics simulation model. It depicts the dynamic behaviors of knowledge management and presents some findings of political leverage. Although it has to be replenished further, the scheme for the dynamism of knowledge management and the findings presented in the paper could be useful for the decision makers particularly of knowledge-intensive organizations

• Journal of the Korean Operations Research and Management Science Society
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• v.30 no.1
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• pp.129-147
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• 2005

In Knowledge Management Systems (KMS), tacit knowledge which is usually possessed as forms like know-how, experiences, and etc. is hard to be systemized while managing explicit knowledge is comparatively easy using information technology such as databases, Recent researches in knowledge management have shown that it is more applicable in many ways to provide expert search mechanisms in KMS to pinpoint experts in the organizations with searched expertise so that users can contact them for help, In this paper, we propose an intelligent expert search framework to provide search capabilities for experts in similar or related fields according to the user's needs. In enabling intelligent expert searches, Fuzzy Abstraction Hierarchy (FAH) framework has been adopted, through' which finding experts with similar or related expertise is possible according to the subject field hierarchy defined in the system. To test applicability and practicality of the proposed framework, the prototype system, Knowledge Portal for Researchers in Science and Technology, was developed.

• The Journal of Korean Orthopaedic Ultrasound Society
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• v.6 no.1
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• pp.20-27
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• 2013

The anatomical structures of foot and ankle are more superficial than other body structures. The ultrasonographic examinations are easy and useful diagnostic tools in the foot and ankle field. The interpretation of ultrasonographic findings depends on the observer's experiences of sonographical anatomy. Repeated ultrasonographic examination of the foot and ankle can improved the skills in diagnosing the disease of the foot and ankle.

• Research in Plant Disease
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• v.24 no.2
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• pp.113-122
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• 2018

Ripe rot, Botrytis storage rot and Sclerotinia rot are major fungal diseases that lead to deterioration of fruit quality in Korea. Ripe rot, which is caused by Botryosphaeria dothidea, affects harvested fruits during post-storage ripening, while Botrytis storage rot, caused by Botrytis cinerea, affects harvested fruits during cold storage, and Sclerotinia rot, caused by Sclerotinia sclerotiorum, mainly affects immature fruits on the trees. Major fungal fruit rots tend to affect yellow- and red-fleshed cultivars of kiwifruit more severely because of the sharp increase in their cultivation acreage in recent years in Korea. In this review, we summarize symptoms and epidemiological characteristics of the major fungal fruit rots and propose integrated management methods of the diseases that can be practically utilized at the farmers' orchards in order to prevent the diseases based on our research works and field experiences and the research works of others conducted during the last three decades worldwide.

• Journal of Chest Surgery
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• v.22 no.6
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• pp.936-943
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• 1989

We underwent 21 cases of orthotopic heart transplantation in the mongrel dogs from May, 1988, to April, 1989. The preoperative hematologic and hemodynamic results were similar to those of the previous reports except glucose and albumin. The exposure of operative field was excellent under the median sternotomy. All the cases died within 48 hours and the mean survival time excluding 4 operative deaths was 11.23*9.36 hours [\ulcorner.D., range 0.3-35.5 hours] We speculated the main cause of death was low cardiac output due to the myocardial failure. At autopsy, there was feature of intramyocardial hemorrhage and coagulation necrosis suggesting poor myocardial protection. Now our team is ready to do heart transplantation in man but we need more precise experiences, especially on the immunosuppression and myocardial protection. Recently we continue further experiments with improving results.

• Archives of Plastic Surgery
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• v.32 no.6
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• pp.675-682
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• 2005

This is the evaluation report of clinical competence of undergraduate medical students in Plastic Surgery field using OSCE(Objective Structured Clinical Examination) executed in three years. OSCE comprises of assessment of subject, choice of clinical stations sampling, identification of components of clinical competence to be evaluated, the level of performance required, development of specification table, editing of OSCE presentation page and assessment of practicability and results exploitation. About fifty students were examined annually. Seven station stimuli with simulated patient participation were carried out. The mean OSCE score was $82.3{\pm}6.19$. The reliability of the total station was 0.72. The examination shows a positive response to the OSCE. Our experience shows OSCE's feasibility for Plastic Surgery during the initial course of education. Referring to our experiences, the Korean Society of Plastic and Reconstructive Surgeons (KPRS) applied the OSCE test for Korean Plastic Surgery Board Certification

• Journal of environmental and Sanitary engineering
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• v.17 no.4
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• pp.39-46
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• 2002

The purpose of this research was to get an alternative idea about the situation and problems of domestic pest control company We performed a questionnaire survey of 105 companies to find the situation and problems of pest control companies with and with out lincensed sanitarians. The investigation revealed the following issues and the conclusions summarized. 1. Companies with lincensed sanitarians have shown to put forth hygenic safety(62%) as first priority as to companies without sanitarians neglect hygenic safety and rank financial benefit(40%) as their priority. 2. Companies with lincensed sanitarians have directions on its use of pesticides but the companies without inspectors rely only on field experiences. 3. Companies with lincensed sanitarians are known to use the safety equipment. To the contrary, companies without sanitarians worked without the proper safety equipment safety gear. 4. Companies with sanitarians been regularly received educational Programs on chemicals used in the pest control. And then companies without did not have my other educational programs for chemicals they used.