• Title/Summary/Keyword: 1980년대 한국

Search Result 1,120, Processing Time 0.024 seconds

타이타늄 소재의 치과용 임플란트 표면처리 기술

  • Kim, Myeong-Deok
    • Proceedings of the Materials Research Society of Korea Conference
    • /
    • 2011.05a
    • /
    • pp.20.1-20.1
    • /
    • 2011
  • 타이타늄의 내부식 특성은 분해하기 어려운 산화물의 보호피막을 형성 함으로서 무독성의 생체친화적 성질을 가지고 있어 심장밸브, 인공 뼈 등 신체 조직의 이식에 사용될 만큼 인체에 무해한 금속으로 의료용으로 많이 응용되고 있다. 본 강연에서는 생체재료로써 의료용 타이타늄의 적용현황을 소개하고, 이를 통해 타이타늄의 가치를 다시 한번 재고하고자 한다. 타이타늄 임플란트에서 그 표면과 골사이의 골유착(osseointegration)은 성공적인 임상결과를 얻기 위한 중요한 요소 중의 하나이다. 1960년대에는 기계가공 된 매끈한 형태의 타이타늄 표면을 시작으로 골유착을 얻고자 하였다. 이러한 시도를 통해 임플란트가 점차 대중화 되면서 1980년대 부터 타이타늄 표면과 골과의 유착을 조기에 실현하고, 골유착 강도를 강화하기 위해 다양한 표면기술이 개발 되기 시작하였다. 크게는 1. 표면적 증대 기술, 2. 화학적 방식을 통한 표면기술, 3. 생체활성 유도형 표면기술, 4. 서방출 등을 응용한 골유도 및 활성 조절형 표면기술 등이 개발되어 제품화 되거나 그 연구가 진행 중에 있다. 다양한 표면기술에 대한 흐름을 이해하고 이에 대한 장, 단점을 이해함으로써 앞으로 기술적으로 극복해 나가야 할 과제를 제시하고자 한다. 또한 다양한 표면기술에 대한 유효성과 그에 대한 중, 장기 안전성에 대한 중요성을 이해하고 이를 평가하기 위한 여러 가지 절차와 방법 소개를 통해 신뢰성 있는 연구개발이 될 수 있기 바란다.

  • PDF

IMC 연구의 체계적 이론 모델 구성을 위한 비판적 탐색

  • Lee, Jae-Jin;Choe, Min-Uk
    • Korean journal of communication and information
    • /
    • v.24
    • /
    • pp.119-150
    • /
    • 2004
  • 1980년대 이후 미국에서 통합 마케팅 커뮤니케이션(Integrated Marketing Communications) 개념이 본격적으로 도입된 이래 IMC는 국내외적으로 실무에서 폭 넓게 활용되고 있으며, 1990년대 이래 학문적으로도 많은 연구들이 행해지고 있다. 그러나 IMC는 여전히 새로운 학문분야로서 아직도 학문적으로 많은 논쟁이 일어나고 있으며 체계적인 이론 정립이 미흡한 상황이다. 이러한 상황에서 본 논문은 지금까지의 국내외 IMC 관련 연구들을 체계적으로 고찰하여 IMC 연구의 전체 흐름을 이해하고, 쟁점은 무엇인지 파악하여, 이를 바탕으로 향후 연구방향을 탐색하였다. 본 논문은 지금까지의 IMC 관련 연구를 IMC의 개념 및 인식에 관한 연구, IMC 실행에 영향을 미치는 요인에 관한 연구, IMC 실행과정에 관한 연구, IMC 실행의 효과에 관한 연구 등 크게 네 가지 형태로 분류하여 각 분야 연구들의 논점들을 정리하였다. 분석결과 IMC 연구에 있어서 주요 쟁점으로 학문적 체계에 관한 문제, IMC 실행 수준의 측정 문제, 연구방법상 실무자를 대상으로 한 설문에 지나치게 의존하고 있는 문제 등이 부각되었다. 이러한 결과를 바탕으로 향후 IMC 연구방향으로 IMC 정의 및 개념의 통일, 객관적인 IMC 측정방법의 연구, 광고주나 대행사뿐만 아니라 소비자 측면에서의 연구, 광고주와 대행사의 협력에 관한 연구, 구체적인 통합의 범위와 정도 및 효과를 규명하는 연구들이 필요한 것으로 드러났다.

  • PDF

A study on the Relationship between the Telemarketing and the Customer Orientation (텔레마케팅 유형과 고객지향성의 관계)

  • 한동철
    • Journal of Distribution Research
    • /
    • v.6 no.1
    • /
    • pp.57-76
    • /
    • 2001
  • This study applies several concepts of customer orientation developed in 1980s and 1990s into the Korean telemarketing area. We in particular used two kinds of customer orientation - pure customer orientation and competitive customer orientation, and empirically analyzed the impact of customer orientation on the employee's satisfaction in terms of information, divers ity, completeness, salary). We surveyed 124 telemarketers in Korea.

  • PDF

Developmental Process of Forest Policy Direction in Korea and Present Status of Forest Desolation in North Korea (남북한 산림정책의 전개과정과 북한의 산림황폐지 실태)

  • Choi, In-Hwa;Woo, Jong-Choon
    • Journal of Forest and Environmental Science
    • /
    • v.23 no.1
    • /
    • pp.35-49
    • /
    • 2007
  • This study analyzed on the developmental process of forest policy direction in Korea and present status of forest desolation in North Korea of the pre and post division of the Korean peninsular with historical point of view and indicates future tasks to take. Forests in Korea were destroyed in the early of 1900s while Korean peninsular was under Japanese colonial rule. In 1945, Korea was divided into two parts, which developed its own forest policy under the different political system. South Korea was at Korean war in 1950 and accomplished the greening movement from 1970s to 1980s. After 1990s, the country has aimed to sustainable forest management. North Korea has focused on forestation until 1960. However, the result has been doubtful with North Korean economic depression, and these days North Korea faces forest desolation due to failures of forest management. Therefore, necessary is that recovery measures for forest desolation in North Korea, cooperation and interchange between North and South Korea and plans of forest management in case of unification.

  • PDF

Development of Basic Research for Establishing the Apple IPM System in Korea: Dr. Lee Soon-Won's Research Case (한국형 사과 병해충종합관리(IPM) 체계 수립을 위한 기초연구의 전개: 이순원 박사의 연구 사례)

  • Ahn, Jeong Joon;Oh, Hyeonseok;Choi, Kyung San;Choi, Kyung-Hee;Do, Yun-Su;Lee, Sun-Young;Lee, Dong-Hyuk
    • Korean journal of applied entomology
    • /
    • v.60 no.1
    • /
    • pp.1-13
    • /
    • 2021
  • The concept of integrated pest management (IPM) first developed in the 1950s, and the concept of economic control via pest management was established in the 1960s. Research on IPM began in the United States and Europe, and IPM studies in Korea started with citrus insects and paddy field pests following the distribution of high-yield varieties of rice. Apple IPM in Korea began with research on pest control using chemical pesticides and pesticides resistant to insect pests, studies on the ecology of insect pests and their natural enemies, and the exploitation of sex pheromones on insect pests. Since the 1990s, IPM research and field projects have been carried out simultaneously for farming households. In the 2000s, the development of pest monitoring and forecasting models centered on mating disturbances, database programs for pests, and networks for sharing information. IPM technology has expanded via the development of unmanned forecasting systems and automation technologies in the 2010s.

The Changes in the Dietary Pattern and Health and Nutritional status of Korean During the last one Century (지난 일세기 동안의 한국인 식습관의 변화와 보건영양상태의 추이 분석)

  • Lee, Cherl-Ho;Joo, Yong-Jae;Ahn, Kee-Ok;Ryu, Si-Saeng
    • Journal of the Korean Society of Food Culture
    • /
    • v.3 no.4
    • /
    • pp.397-406
    • /
    • 1988
  • The changes in the dietary pattern of Koreans during the last one century and its consequences are summarized as follows; 1. Until the beginning of 20th century, Koreans used variety of cereals, vegetables and fruits for their staple food, but the variety has been largely reduced by the agricultural development and urbanized life style. 2. The well balanced traditional dietary pattern of Korean had been deeply deteriorated by the food shortage during the Japanese occupation and Korean war. 3. The deteriorated nutritional condition of Korean was not remedied by the restoration of traditional dietary pattern, but attempted to overcome it by the adoption of Western food habit. 4. The people were trained to eat milk and flour-meals during the starvation of Korean war, and it was continued after Korean war through the animal husbandry promotion policy. 5. The importation of food and feed cereals has been increased rapidly during the economic growth in 1970's and the food self-sufficiency droped below 50%. 6. In 1970's, the food supply pattern of Korean was restored to the level of early 1900, but the consumption of lipid increased extraordinarily. 7. The overconsumption of animal food and lipid continues in 1980's, and it coincides with the rapid increase in the occurence of food related degenerative deseases. 8. The establishment of Korean dietary goal which is based on the traditional dietary pattern is needed.

  • PDF

The transition & forecast of motor cycle production (이륜차의 생산추이와 전망)

  • 마규하
    • Journal of the korean Society of Automotive Engineers
    • /
    • v.6 no.3
    • /
    • pp.1-8
    • /
    • 1984
  • 한국에 이륜차가 소개된 것은 일차 경제개발 5개년계획이 시작된 1962년부터이며 초기 기아산 업에서 차체일부를 제외한 KD부품을 일본 본전기연으로부터 수입하여 조립 생산하였으며, 1975년 6월까지 약 14년간 총 93,000대를 생산한 후 1975년 7월부터 기아기연이 별도 법인으로 설립되면서부터 본격적으로 생산이 증가하게 되었고 1979년까지 독점 공급하게 되어 당시 년산 10만대를 돌파하게 되었다. 이때부터 국내 여러 업체가 출현하여 경합시대에 들어갔다. 즉, 1979년 한국 제네랄모페드(GMK)에서 이태리 Minarelli로부터 엔진 23,700대를 도입 유럽풍의 모페드(Moped)를 조립 생산하기 시작하였으나 1983년부터는 생산이 중단되었다. 1980년대는 대 림공업과 효선기계에서 각각 이륜차를 생산하기 시작하였다. 대림공업은 일본 "호다까"로부터 설비 및 기술을 도입하였으며, 효성기계 역시 일본 "스즈끼"로부터 기술을 도입하였다. 같은 해 진주 소재 동야정기에서는 서독으로부터 Sachs 엔진 6,600대를 도입하여 모페드(Crown)를 생산 판매하였으나 1982년부터 생산을 중단하였다. 다음 해인 1981년 마신산업은 이태리 피아지 오(Piaggio)로부터 엔진을 도입하여 125cc 급스쿠터를 생산하기 시작하였다. 1980년도에는 5개 업체가 이륜차 생산에 참가하였으나 자연소멸되고 또 81년 2월 28일 자동차산업 합리화조치로 대림공업과 기아기연이 합병되어 대림자동차공업(주)가 1982년 4월 설립됨으로써 현재는 효성 기계, 마신산업과 함께 3개업체가 존재하고 있다. 1975년에는 불과 3개 모델뿐이던 것이 79년 에는 5개 모델, 지금은 30개의 모델을 3개 업체에서 생산하고 있으며 그 동안 없어진 모델이 18개기종이 된다.

  • PDF

The Preservation and Management of Materials of Women's History: On the Materials of Women's Policies and of Women's Organizations from 1945 to 1980's (여성사 관련 자료의 보존현황과 관리방안: 해방이후 ~ 1980년대 여성정책 및 여성단체 자료를 중심으로)

  • Paik, Young-Joo;Kim, Soo-Ja
    • Journal of Korean Society of Archives and Records Management
    • /
    • v.5 no.1
    • /
    • pp.5-21
    • /
    • 2005
  • As records of Women's policies and organizations from 1945, there are reports, pamphlet, educational materials, books, and photos. At this time, preservation status of which is so vulnerable. These problems are caused by absence of archivist, small preservation space, and financial weakness. For solving these problems, an alternative is establishing archives specified at collecting and management of materials. It's more important to making database through systemized materials, so that general people also beyond professional researcher, by web server, easily access to information of Korean Women's history.

Development Process of the 88 Seoul Olympic Park as Sculpture Park and Its Discourses (88올림픽공원 조각공원의 조성 과정 및 전후 담론의 해석)

  • Shin, Myungjin;Sung, Jong-Sang;Pae, Jeong-Hann
    • Journal of the Korean Institute of Landscape Architecture
    • /
    • v.48 no.1
    • /
    • pp.46-56
    • /
    • 2020
  • The 88 Olympic Park is a monumental urban park in Seoul, developed to commemorate South Korea's hosting of the 1988 Seoul Olympic Games. Initially conceived to emphasize the event slogan, 'Cultural Olympics,' which was driven by the Korean government, the park, already designed and constructed by 1986, was reconfigured into a sculpture park following two international outdoor sculpture Olympiads and an invitational sculpture exhibition. This study takes a look at the process of redesigning the park into sculpture park and the socio-political discussions surrounding such a process, in order to reconsider the significance of the 88 Seoul Olympic Park with regards to Korean landscape architectural history. Several discussions within Korean society arose during the redesign process. First, there were critiques on the artwork selection during the early phase of the project. Second, issues regarding the conservation of the national heritage site, Mongchon-tosung, located within the park, gave rise to a larger discourse on heritage preservation in Seoul. Third, discussions regarding the formation of the park identity, or lack thereof, prevalent. Through this study, the 88 Seoul Olympic Park presents itself as an example where large park construction in Seoul caused discussions regarding globalization, nationalism, publicness and art to be brought forth. This paper concludes that the 88 Seoul Olympic Park is a cultural landscape that requires further examination and exploration as it provides rich historical context for understanding the history of cultural and artistic practices in Korean urban landscapes.

Progress and Prospect of Research on North Korea in Korean Human Geography (한국 인문지리학 분야에서 북한 연구의 동향과 과제)

  • Kim, Ki-hyuk
    • Journal of the Korean Geographical Society
    • /
    • v.51 no.5
    • /
    • pp.713-737
    • /
    • 2016
  • This study is to review research issues on North Korea and unified territory in terms of topics and approach method in Korean human geography. The conclusion of this paper is as follows. Before 1980's, topics on political geography, such as geopolitics or unified land, were the main stream in research. In 1990's with the end of the cold war and the access to material which was published in North Korea, scope of research was widened especially in geography education. After 2000's with the expansion of cooperation between South and North Korea, the scope of topics were more expanded in all field of human geography, for example, critical geopolitic in political geography, Gaeseong Industrial Complex, Najin-Seonbong region in economic geography, place names, Geumgangsan, North Korean defectors in social and cultural geography. The approach method of toward North Korea is fall into two categories. One is regional geography and the other is the unified land. In the latter approach, topics on the regional structure after reunification or on the life adaptation of defectors in South Korea etc. were studied. After unification of land, new Korean Studiea will be established and human geographers should make ready for this. Before unification, research on the land in north Korea should be proceeded in terms of historical geography.

  • PDF