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      • SCIESCOPUSKCI등재

        성견 발치와에 매식한 2종의 Bovine Bone Powder가 치유에 미치는 영향에 관한 조직학적 연구

        박태성,임성빈,정진형,김종여,Park, Tae-Seong,Lim, Sung-Bin,Chung, Chin-Hyung,Kim, Jong-Yeo 대한치주과학회 2000 Journal of Periodontal & Implant Science Vol.30 No.3

        Several extraction cases with advanced bone loss as a result of periodontal disease, root or labial bone fracture, extensive caries, and periapical lesions occur esthetic, functional problems and severe bone loss. Therefore, to treat these cases used several surgical methods and socket preservation among this therapies have been evaluated simple, effective and good prognosis in the implant placement. Socket preservation therapy have been used with barrier membranes or/and graft materials. Deproteinized bovine bone mineral have been evaluated ideal grafting materials. Recently, calcium-phosphate thin film coated bovine bone powders were developed in our country, but the study for these material wasn't reported. When two types of xenograft materials were implanted in extraction sockets of Beagle dogs, the effects of these were analyzed after 4 weeks and 8 weeks histological views. The results of this study were as follows. 1. In control groups, 4 weeks after implantation, the extraction sockets were filled with connective tissue which has dilated vessels and epithelial growth. And after 8 weeks, irregular connective bundles were observed. But new bone formation was not seen. 2. In Bio-Oss groups, epithelial growth was not seen and bone powder was covered with connective tissue fiber. New bone formation was found around the interproximal bone. There was no special change seen after 8 weeks, connective tissue fibers became more regular, and bone growth near bone powder was not made well. 3. In Ca-P BBP groups, epithelial cells didn't grow in the extraction sockets, there was a lot of new bone made around the bone powder after 8 weeks, new bone around bone powder was replaced with mature bone. It is thought that bone powder grafting into the extraction sockets is very useful for conservation of ridge, and Ca-P BBP is more effective in bone formation than Bio-Oss.

      • KCI등재

        소련 사회주의 교육의 허와 실

        박태성(Park Tae Sung) 한국슬라브유라시아학회 2002 슬라브학보 Vol.17 No.1

        This paper deals with the reappraisal of Soviet education constructed during the 70 years. Soviet educational system and contents have been contributed to the development of Soviet society. Especially, poly technical education equiped pupils with knowledge that ensured an assimilation of the scientific foundations and the unified organizational principles of contemporary production. This knowledge served as an important prerequisite for the shaping of occupational mobility in young people. Under the socialistic political system this educational principle resolved many problems in the aspects of ideology and authority of the government. In the period of Perestroika the system and contents of Soviet education were collapsed. The radical changes were taking place in the content of educational system and politics. The essence of these changes consisted in the fact that socialistic educational system was not coincided with the politico-economical capitalism. The socialist school and pedagogy, while consistently pursuing the principle of common curricula as an important condition for the democratization of society and for the comprehensive development of each individual. acknowledged that it is also important to the develop individual abilities and interests. But socialism's pedagogical ideas and principles were in keeping with the interests of the human community. They were percolating into the consciousness of educators in the capitalist countries. The superlative aspects of the socialist school system prompted those educational activists who hold objective viewpoints to turn to the experience of the school system. Notwithstanding unrealities of the socialistic educational system, socialism's pedagogical ideas and principles exerted an influence on the educational systems that are coming into being in liberated state.

      • KCI등재
      • 러시아 대학의 변화와 청년실업 문제

        박태성(Park, Tae-Sung) 아시아·중동부유럽학회 2011 동유럽발칸학 Vol.13 No.2

        '스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.

        러시아 대학은 생존전략을 강구하기 위한 변화의 물결에 직면하고 있다. 고등교육 개혁은 대학이 사회적 기관으로서 그 역할을 다하고, 자생력을 길러 자본주의 사회에 적응하도록 요구하고 있다. 이에 따라 대학은 엄청난 양적 성장을 하지만 질적 개선은 그에 따르지 못하고 있다. 물질적 기반의 질적 저하에 따라 대학의 역량은 급격히 떨어지고 새로운 사회에 적응해야 할 대학인은 매우 힘들게 살아간다. 우수한 인재를 양성하기 위한 교육과 연구에 매진해야 할 교강사들은 박봉에 시달리면서 또 다른 벌이에 눈을 돌리고 있다. 급변하는 시대가 요구하는 교육과정의 혁신이 이뤄지지 못하는 가운데, 졸업생 전문가들의 질적 수준과 사회 적응력 또한 심각한 문제가 되고 있다. 결국 청년실업을 초래하는 근본적인 원인을 대학이 제공해주는 셈이 된다. 본고는 이러한 러시아 대학의 현실을 조망해봄으로써 청년실업의 구조적 문제와 그 해결방안을 찾고자 한다. 대학의 팽창과 기능의 확대에도 불구하고 졸업생의 진로가 불투명한 청년실업 문제가 왜 발생하는 것일까? 노동시장에서 졸업생의 전공이 일치하는 않는 수요와 공급의 불균형을 비롯하여, 군복무라는 특수한 환경, 고학력 여성들의 차별, 청년들의 취업에 대한 의식 문제 등 많은 요인이 제시된다. 대학교육 개선을 통한 청년실업 해소방안으로 가장 먼저 대학 당국의 인식 전환과 추진력이 요구된다. 또한 학생의 입장에서 필요한 교육을 해야 할 교수들의 역량과 자질 함양, 대학 내 취업지원센터와 학과의 유기적인 협조, 다양한 진로를 개척하기 위한 프로그램 개발 등을 통해 미래의 주역인 청년들의 실업을 해소하는데 전 사회가 노력해야 할 것이다. Russian universities are facing a wave of change to take a survival strategy. Higher education reform demands that university should be dedicated to its role as a social institution and raised viability to adapt to the capitalist society. As a result, a huge quantitative growth of universities is shown, but quality improvements have not been able to follow it. According to the penalty based on the quality of the material, the university’s ability is dropped suddenly, and the university members to adapt to a new community are very hard living. The professors and lecturers should be focused on a side job to tide of meager salaries instead of nurturing talents for the education and research. In the process of no innovation of the educational course that the changing age requires, quality of graduate professionals and social adaptability have also become a serious problem. Eventually the responsibility for the root causes that lead to youth unemployment lies with the university. This paper deals with structural problems of youth unemployment and their solutions by looking for the reality of the Russian university. Despite of the expansion of functions of the university, why does occur the problems of youth unemployment that graduates are faced with uncertain future? In the labor market an imbalance of supply and demand for graduates’ mismatched majors, a special environment of military service, sex discrimination in employment, awareness of young people about employment and many factors are presented. To solve these problems through improving university education, first of all, a mind change of the university authorities and its driving force are required. In addition, a cultivation of the competency and qualifications of professors to train from the standpoint of students, an intimate cooperation between the faculty and the university’s Department of Employment and Support Center, and an exploiting a variety of careers through the development of programs should be practiced. Finally, all society as well as the university members should strive to find a way out of youth unemployment.

      • KCI등재

        표면파의 분산 특성을 이용한 Ni 박막의 두께 측정

        박태성(Tae-Sung Park),곽동열(Dong-Ryul Kwak),박익근(Ik-Keun Park),김미소(Miso Kim),이승석(Seung-Seok Lee) 한국비파괴검사학회 2014 한국비파괴검사학회지 Vol.34 No.2

        본 연구에서는 박막 표면을 따라 전파하는 표면파의 속도 분산성을 이용하여 박막의 두께를 비파괴적으로 측정할 수 있는 기법을 제안하였다. 표면파의 분산성을 이용하여 박막의 두께를 측정하기 위하여 전자빔증착법(E-beam evaporation)을 이용하여 Si(100) 웨이퍼 위에 니켈의 증착시간을 제어함으로서 두께가 다른 니켈 박막시험편을 제작하였다. 제작된 시험편의 실제 증착된 박막의 두께를 확인하기 위하여 SEM(scanning electron microscope)을 이용하여 박막의 단면사진을 촬영하여 두께를 확인하였다. 그 후에 두께가 다른 시험편에서의 표면파의 속도를 초음파현미경(scanning acoustic microscope)의 V(z) 곡선법을 이용하여 표면파의 속도를 측정하고 실제 측정된 두께와 표면파 속도와의 상관성을 확인하였다. 박막의 두께가 증가함에 따라 표면파의 속도는 감소하는 경향성을 나타내었다. 결론적으로 본 연구에서 제안한 표면파의 속도 분산성을 이용하여 나노 스케일 니켈 박막의 두께를 측정하는 기법이 가능성이 있음을 확인하였다. In this study, we suggest a method to measure the thickness of thin films nondestructively using the dispersion characteristics of a surface acoustic wave propagating along the thin film surface. To measure the thickness of thin films, we deposited thin films with different thicknesses on a Si (100) wafer substrate by controlling the deposit time using the E-beam evaporation method. The thickness of the thin films was measured using a scanning electron microscope. Subsequently, the surface wave velocity of the thin films with different thicknesses was measured using the V(z) curve method of scanning acoustic microscopy. The correlation between the measured thickness and surface acoustic wave velocity was verified. The wave velocity of the film decreased as the film thickness increased. Therefore, thin film thickness can be determined by measuring the dispersion characteristics of the surface acoustic wave velocity.

      • KCI등재
      • KCI등재
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