공진모드의 변화에 따른 강압용 압전변압기의 설계와 해석

정현호,강도원,박태곤 창원대학교 산업기술연구소 2001 産技硏論文集 Vol.15 No.-

This paper present a new sort of multilayer piezoelectric ceramic transformer for the application to AC-adapters. This piezoelectric transformers operate in the second and third length extensional vibration mode. And the output performance of two types of piezoelectric transformers are compared by ANSYS, which is on of the FEM analysis program. As a result, the minimum displacement was occurred at the two points in second length extensional vibration mode and three point in third length extensional vibration mode. One is the middle of input and the other is middle of output parts. And output voltage was inversely decreased by increasing number of output layers. Also The third mode type is shown higher power transition ratio than the second mode type.

흰쥐의 파라쿼트 중독모델에서 폐손상에 대한 N-acetylcysteine과 Methylprednisolone의 효과

최태환,조건현,오동렬,김세경 대한응급의학회 2001 대한응급의학회지 Vol.12 No.3

Background: This study evaluated the inhibitory effects of N-acetylcysteine(NAC) and methylprednisolone on lung injury in the paraquat-poisoned rat model. Methods: Sixty rats were divided into four groups(n=15 in each group) accordingly to the drug administered : group I, only intraperitoneally injected paraquat (20 mg/kg); group II, intraperitoneally injected paraquat and NAC(300 mg/kg); group III, intraperitoneally injected paraquat and methylprednisolone(60 mg/kg); and group IV, intraperitoneally injected paraquat, NAC(300 mg/kg), and methylprednisolone(60 mg/kg). On the 7th day after injection, the survival rate of experimental rats and the positive area of collagen fiber in the injured lung stained by Masson's trichroms were evaluated. Results: 1. There were no differences in the 7-day survival rates for the four groups. 2, The percent of collagen fiber for group II(6.3 ± 4.7%) was significantly decreased in comparison with that for group I (14.4±9.7%). 3. The percent of collagen fiber for Group III(13.2±5.9%) was not significantly different from that for group I(14.4±9.7%). 4. The percent of collagen fiber for Group IV(6.9±4.6%) was significantly decreased in comparison with that for group I, but was not different from that for group II. Conclusion: These results suggest that NAC protects against pulmonary fibrosis in paraquat-poisoned rats whereas methylprednisolone does not protect against pulmonary fibrosis.

가맹사업거래 계약과 분쟁해결

조태현 韓國仲裁學會 2004 중재연구 Vol.14 No.2

Recently in Korea, franchise system has been specially used in the distribution industry. However, it also brought up many problems caused by various issues between franchisor and franchisee. The purpose of this article is to review recent trend of the franchise transaction contracts and resolution of the disputes in Korea. And to expand to use of ADR(Alternative Dispute Resolution) system as a practical dispute settlement procedure including mediation and arbitration. Arbitration means a procedure to settle any dispute in private laws, not by the adjudication of a court, but by the award of an arbitrator or arbitrators, as agreed by the parties. Arbitration agreement is a prerequisite for either party to a dispute to commence arbitral proceeding and may be in the form of a separate agreement or in the form of an arbitration clause in a contract and shall be in writing.

체중/(신장)^p형 체격지수의 분표형

한태현,정규철 중앙대학교 의과대학 의과학연구소 1979 中央醫大誌 Vol.4 No.1

In order to verify the distribution types of weight/(height)^p­type physical indices, viz, relative weight (wt/ht), Kaup index (wt/ht^2), Ro¨hler index (wt/ht^3) and Florey index (ht/^3√wt), statistical analyses were made with the data of weight and height measurements obtained from adult males aged from 16 to 59 years. The results of the analyses disclosed that the distribution types of weight/(height)^p­type physical indices were not identical with the theoretical normal distribution as the distributions were leptokurtic (β_2>3), and non­symmetrical: somewhat left­shifted in the distributions of relative weight, Kaup index and Ro¨hler index (β_1>0), and right­shifted in Florey index (β_1<0). It is concluded that the distribution types of weight/height^p­type physical indices are approximately normal and the theory of normal distribution can be applicable to the analyses of these data.

忠州市 地域特性을 反暎한 共同住宅 計劃硏究 : 충주지역 거주자의 APT 선호특성을 중심으로

朴碩鉉,朴義權,柳顯紀,尹勝照,孫泰鎭,金基洙 충주대 2003 産業科學論文集 Vol.11 No.-

The purpose of this research is to analyze the correlation of the characteristics of dwellers and residential preference in apartment housing through the case study of 340 samples in 25 housing estates which were built in Chung-ju city The contents of this research consist of two main parts. The first part is to identify characteristics of dwellers, which might have an influence on residential preference in apartment housing. The second part is to identify the main physical elements of residential preference that can be influenced by the personal characteristics. Thus, this research will contribute to the establishment of the planning methods which increase residential preference in apartment housing, while promoting the quality of residential environment in Chung-ju city.

중심과 심상적 중심에 관한 연구 : 조선시대 삼묘건축을 중심으로

박석현,손태진 충주대 산업과학기술연구소 1998 産業科學論文集 Vol.6 No.-

The purpose of this study is to be focused on "the center" and "the mental imageable center" of Sammyo architectural space at Confucian architecture in Chosun dynasty. The result of this study are as follows ; It is showed that the focus of Myojeong -inner -courtyard in Sammyo architecture may serve internal foci gathering things. And it is organized into the center of salemn space, place of the people performing the traditional rites, and the mental imageable center, space for ancestors, are embodied all together.

銀行産業의 國際競爭力과 戰略的 마아케팅管理의 選擇

趙泰玄 成均館大學校 韓國産業硏究所 1993 韓國經濟 Vol.20 No.1

Since the 1980s, a series of liberalization measures have taken place in the financial sector in Korea, In the meantime, with the internationalization or globalization of banking, Korean domestic banks have grown rapidly in terms of business volume and market share. This changing environment has resulted in a sharp increase in competition both home and abroad, so that international competitiveness and strategic marketing management have become more important than ever in the Korean banking industry. The purpose of this study is to examine the existing theories and materials related to the international competitiveness of banking industry, and to suggest the desirable directions of the strategic marketing management through an analysis of the international competitiveness in Korean banking industry. To achieve its objective, this study employed both the model of determinants of international competitiveness in terms of objective factors and subjective factors including chance and the performance data analysis of Korean banks, and examined present international competitiveness of the Korean banking industry. This study concluded that intensifying the related and supporting industries, as well as reviving the entrepreneurial spirits and developing professional managers were the critical elements in improving the international competitiveness of the Korean banking industry. And in order to intensify international competitiveness, a choice of strategic marketing management by domestic banks also should be required such strategies as diversification, specialization and internationalization including efficient individual management.

창업활성화와 고용창출 증대를 통한 소상공업 생산성 향상방안 연구

조태현 한국생산성학회 2004 生産性論集 Vol.18 No.3

This purpose of this research is to suggest the improvement productivities through activating of the small business start-up and employment. For this purpose, through the existing research related small business start-up and employment effects analysis, I examined the theoretical background, established the hypothesis and analyzed the empirical analysis through the statistical analysis and some case studies. The statistical data since 1999 were prepared by the SBDC(Small Business Development Center) and the real company cases were made in the distrct of the Incheon City. As a result, this study indicates that activation of the small business start-up and employment provide positive improvement productivities and suggests the importance of small businesss start-up and the necessity for the continuous fostering systematically including supporting measures.

담론이론과 공공정책의 정당성

문태현 한국정책학회 2003 韓國政策學會報 Vol.12 No.4

오늘날 실증주의에 바탕을 두고 있는 주류의 정책분석은 정책의 정당성을 공리주의 철학에 의존하고 있다. 공리주의 관점은 정책의 정당성을 목표와 수단의 인과관계에 초점을 두는 도구적 합리성에 지나치게 의존하는 나머지 정책의 정당성이 갖추어야 할 포괄적인 합리성의 측면을 고려하지 못하는 단점이 있다. 따라서 본 연구에서는 정책의 정당성을 포괄적 합리성 측면에서 접근하기 위하여 그 이론적 근거를 Habermas의 담론이론에서 찾고자 하였다. 담론이론에서 정책의 정당성은 담론과정을 통하여 정책의 제 측면이 철저히 검증되어야 하고, 그러한 검증을 바탕으로 정책담론에 참여하는 사람들의 동의를 획득할 때 정당성이 확보되는 것으로 본다. 이러한 관점에서 연구자는 정부정책의 정당성을 제고시키기 위하여 시민사회내의 정책네트워크를 중심으로 정책공론이 활성화되어야 하고 동시에 정책결정과정에 지속적인 담론규칙의 제도화가 필요함을 주장하였다. Policy analysis based on positivism today, finds the justification of public policy in utilitarianism. Because utilitarian policy analysis tends to overemphasize instrumental rationality for the justification of policy stressing the causal relation between policy objectives and instruments, it doesn't take into account comprehensive rationality. In justifying public policy, this article examines comprehensive rationality based on Habermas's discourse theory. According to the discourse theory, the justification of policy depends on the verification of policy in the process of policy discourse and the agreement of those participating in the discourse. From this point of view, this article suggest that for the justification of public policy the public sphere for policy making must be activated through policy networks in the civil society. It also suggests the need for establishing tangible discourse rules in policy making process.

여자대학생의 최대유산소 작업능

한태현,정규철,홍연표 중앙대학교 의과대학 의과학연구소 1984 中央醫大誌 Vol.9 No.3

This study was designed to obtain data to evaluate the maximal aerobic work capacity for young female adult. Heart rate, oxygen uptake and energy cost for treadmill walking at different speed of 2, 4, 6 and 8㎞/hr with different grade of inclination were measured on 45 female college students aged from 18 to 22 years old. Maximal oxygen uptake were also measured on 25 subjects, comparing with the predicted values of them. Heart rate, oxygen uptake and energy cost treadmill walking increased with both speed of walking and grade of inclination. Maximal heart rate was 188.9±7.50 beat/min which amounted to 2.4 times of that at rest. Maximal oxygen uptake and energy cost were 40.0±6.59 ml/㎏/min and 12.1±1.85㎉/㎏/hr, respectively, which amounted to approximately 11 mets: 1 met was 3.8±0.69ml/㎏/min in terms of oxygen uptake or 1.1±0.17㎉/㎏/hr in terms of energy cost. There was an intimate correlation between oxygen uptake and energy cost with correlation coefficient of r=0.9761 (p<0.01). Simple linear regression of energy cost on oxygen uptake was expressed as E (㎉/hr)=6.56±0.290VO_2 (1/min) with standard error of the estimate S_y\z=±36.1㎉/hr. A liter of oxygen uptake was equivalent to 4.94㎉/min of energy cost. Both oxygen uptake and energy cost per unit body weight showed close correlations with heart rate with correlation coefficients of r=0.8623 (p<0.01) and r=0.8442 (p<0.01), respectively. Simple linear regressions of heart rate on oxygen uptake and energy cost on heart rate were expressed as HR (beat/min)=91.7 2.47 VO_2(1/㎏/min), 91.7 2.47 VO_2(1/㎏/min), and HR (beat/min)=93.8±8.03E(㎉/㎏/hr), respectively. It was concluded that the maximal aerobic work capacity for the young female adult could be evaluated by the regression equation of heart rate on oxygen uptake or on energy cost. Individual maximal aerobic work capacity could be assessed as "ordinary" when her heart rate during submaximal work was within the range of predicted heart rate±1 standard error of the estimate(HR_calc, ±S_y\z), as "superior" below HR_calc, ±S_y\z, and as "poor" above HR_calc, ±S_y\z.