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남일송,윤여일,김선규,김용현,이주영,목지오,윤석기,김철희,김영선,변동원,서교일,유명희 순천향의학연구소 2001 Journal of Soonchunhyang Medical Science Vol.7 No.2
Background: Most cases of Graves' disease have been treated by antithyroid drugs in Korea. The major drawbacks of antithyroid drugs are the relative high rate of relapse and the inconvinience of long term therapy. Measurement of TBII and TRH stimulation test have been considered as the most reliable tests predicting relapse, but the predictive power is not high enough to use in clinical situation. This study was performed to find good prognostic indicators in Graves' disease patients after the discontinuation of antithyroid drug therapy. Subjects and methods : We restrospectively evaluated 96 patients with Graves' disease who showed normal TRH test at the end of antithyroid drug therapy and were followed for more than one year. Serum T3, T4, T3/T4 ratio, TBII, Anti-TPO Ab and TGAb levels were measured at the time of diagnosis and at the end of therapy. Two to three months after withdrawal of antithyroid medication, serum TSH and free T3 responses to TRH were examined. These parameters were compared between the relapse group and the remission group. Results : Among the 96 patients, 22 patients(22.9%) relapsed(Group Ⅱ) and 74 patients(77.1%) remained in remmision(Group Ⅰ). No significant difference was observed between the relapse and the remission group in clinical parameters, serum T3, T4, TSH, T3/T4 ratio, TBⅡ and Anti-TPO Ab determined before and after treatment. Serum TSH and free T3 levels measured after TRH stimulation were also similar in both groups. Serum TGAb levels determined at the end of treatment were significantly higher in the remission group(p<0.05). Relapse following the discontinuation of therapy occured within 24 months in 72.7% of the relapsed cases. After 24 months, relapse rate was reduced significantly. Conclusion : These results suggest that high serum TGAb levels could be a favorable prognostic indicator for the long term remission of Graves' disease treated with antithyroid drugs, and may suggest that Hashimoto's thyroiditis is combined with Graves' disease in those patients.
안경주 김철규 전해옥 김봉정 김혜숙 채명옥 윤현정 한달롱 김아린 청주대학교 보건의료과학연구소 2014 보건의료과학연구 Vol.3 No.1
Dynamics in the workplace and in society have contributed to the paradigm shift to outcome-based education. This study was performed to develop the curriculum based on assessment of existing program for the baccalaureate nursing program at Cheongju University. We used three steps-Analysis, Design, and Development-in ADDIE model for developing curriculum. The subjects were 18 graduate nurses, 41 nursing students, 38 parents, and 2 nursing team leaders for analysis of core competence. In conclusion, developing an outcome-based curriculum might be used to facilitate the students' development and evaluate the competence of the student during and on completion of the nursing baccalaureate program at Cheongju University.
김명석,최상돈,조상규,김정호,전헌무,김호일 慶北大學校 師範大學 科學敎育硏究所 1998 科學敎育硏究誌 Vol.22 No.-
We review the contextuality of measured values in quantum mechanics from point of view of a conventional interpretation of quantum mechanics. We will, in particular, concentrate on Bell-KS theorem which, seemingly, disproved the existence of a hidden-variable interpretation of quantum mechanics. We introduce ways to accommodate the contextuality so that Bell-Ks theorem no longer holds and therefore the existence of a hidden-variable interpretation becomes possible.
김건희,김효식,양순철,이상용,국명호,이선규,김윤중,홍권희 한국공작기계학회 2007 한국공작기계학회 추계학술대회논문집 Vol.2007 No.-
This paper describes development of low cost precision machine that has combined the Build-in Motor with a vacuum chuck. This study mainly aims to find out a cutting condition for maintaining optimum surface condition and to examine cutting characteristics of the precision machine that is equipped by diamond bites. The cutting materials is Al alloy. Several experiments were carried out to find out the main factors that affect the surface roughness such as principal axis RPM(rotation per minute), feeding speed, and cutting depth. As a result, we obtain The optimum cutting condition of the developed precision machine.
3-Joint Planar Type 로봇 매니퓰레이터의 자기동조적응제어에 관한 연구
김규로,양희주,유용석,최명진,오택열 慶熙大學校 大學院 院友會 1996 高凰論集 Vol.17 No.-
This study has parallelogram trajectory tracking of Three Joint Planar type Robot Manipulator. The equation of motion for the three joint planar manipulator are obtained by substituting Lagrange's energy expression into Euler-Lagrange's equation and forming the appropriate derivative. Lagrangian method allows us to obtain the dynamics equations for very complicated systems in the simplest manner possible. SISO model is used for design of the controller. The design of controllers may be considered primary controller for manipulators to track the desired trajectory under ideal conditions and secondary controller to compensates for undesirable deviations of the motion from the trajectory caused by external and internal disturbances. The aim of this paper is to evaluate the efficiency by self-tunning adaptive control and considering a characteristic of control. Through the computer simulation, obtained the following results 1) selt-tunning adaptive control is superior to PD control, 2) During the learning period, the adaptive control algorithm is searching proper estimates and controller gains. After this period, the outputs of the joints start tracking closely the desired valued.
金英模,宋明圭 단국대학교 1990 論文集 Vol.24 No.-
The primary purpose of this study is to investigate the efforts of local public goods on intra-city migration and on housing price with special reference to high-school education quality of eight school districts of Seoul. The analysis of the effects on intra-city migration is based on the attitude survey of the city residents which was performed for this study during December, 1989. The survey contains three major inquiries. The first inquiry is concerned with the residents' past intra-city migration experiences and migration motives. The second inquiry is connected with the motives of present residential choice. And, the third inquiry is related to the most desirable neighbourhood. The survey results are summarized as the followings. The primary motive of intra-city migration is not dissatisfaction with local public goods of old residency but other economic one. But, the main incentive of the present residential choice is proved to be high quality of local public goods including high-school education of the present community. And, the most desirable neighbourhood turns out to be the one which is equiped with high quality local public goods, especially, good traffic facilities, high level of public safety, clean air, low noise, and high quality of high-school education, too. The effects on housing price are analyzed through various statistical regression equations which contain housing price as the dependent variable and housing size, construction year, house style, accesibility to CBD, and the quality of various local public goods including park, traffic facilities such as road and subway, public safety, population density, and high-school education quality as the independent variables. The results of analysis reveal followings housing price. But, various local public goods, especially, high-school education quality, public safety, and subway facilities are proved to have significant and, according to circumstances, strong effects on housing price.
金允溟,朴圭喆,崔鍾云,朴宰煥 단국대학교 1992 論文集 Vol.26 No.-
In the RF gas discharge system the load varies frequently by the operational environment. And it is often necessary to change the matching network to provide the maximum possible power transfer from the oscillator to the RF load. An Rf oscillator whose variable operating frequency is between 20 and 30 MHz and whose output RF power is about 200 watts was designed to solve this problem. The conversion efficiency from the DC power was about 80% It is found that the output oscillating frequency which gives minimum RF reflections from the loads follows automatically to the changes of the load or of the operating conditions. It is also found that the output frequency decreases with the larger load shunt capacitance.