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Chang, Tae-Jin
- Current Industrial and Technological Trends in Aerospace
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- v.6 no.1
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- pp.14-24
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- 2008
After 2001, the world aircraft industry grows consistently with world's economic recovery. The environmental changes after 9.11, including the market decent and revival, rise in oil price, and the environmental problems, make the aircraft industry change gradually. The increasing demand of point-to-point flight needs over 200 seat class large jets and changes the main model of regional jet over 100 seat class. And the needs of various flight schedule raises the demand of business jet and VLJ. The competition between airliners including the main streams, the regionals and the low prices goes harder and it needs more efficient airplanes which reduce the cost. In the military side, still the development of 5th generation fighter is proceeding and it diffuses to the more countries. Before its popularization, the 4th generation fighter is chosen for good alternatives of it. And there are some changes in the military demand after the war against terrorism. The army needs more unmanned reconnaissance and they want new aircraft which gives more accessibility.
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Korea Tire Manufacturers Association
- The tire
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- s.99
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- pp.48-48
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- 1982
미국의 자동차용 튜브 수요동향을 보면 ,트럭ㆍ버스용 및 승용차용 튜브는 감소현상을 나타내고 있으나 농경용 및 산업용 튜브의 수요는 점차 증가되고 있는 현상이다. 이와같은 경향은 Tubeless 타이어의 영향이 큰 것으로 해석된다. 최근 미국의 튜브수입 각국 점유율은 한국산 튜브의 점유율이 급증하고 있다고 한다. 앞으로는 농경용 및 산업용 튜브 수요가 더욱 증가될 것으로 예상되므로 농경용ㆍ산업용 튜브 수출에 한층 더 노력함으로써 좋은 결과를 얻을 수 있을 것으로 기대된다.
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김순광
- Electrical & Electronic Materials
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- v.1 no.3
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- pp.219-227
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- 1988
광자기디스크 응용상의 과제로서는 저가격화와 overwrite의 실현, 그리고 고속 기록재생 및 고속 access성을 들 수 있는데 현재 기록매체와 drive공히 다방면으로 연구개발이 집중되고 있어 제2, 제3세대 광자기디스크 장치가 속속 나타날 전망이다. 광자기 디스크의 수요예측은 예측시점이나 예측방법, 예측자에 따라 상당한 차이를 보이나 공통적으로 1990년대레응 20-30억불 시장을 예상하고 있으며 수요증가추세는 2000년까지 기하급수적으로 늘어날 것으로 보고 있다. 광자기 디스크 장치의 수요 예측 결과의 일예를 그림 12에 소개한다.
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Oh, Youngho
- Journal of Korean Ophthalmic Optics Society
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- v.15 no.4
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- pp.398-404
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- 2010
Purpose: Concerns had been voiced about an oversupply of optometrists in Korea. So, this study aimed to forecast the supply and demand for opticians for policy implications. Methods: Baseline Projection model combined with demographic method was adopted as the supply forecasting method and so was a ratio method using the number of physician and population using weight of healthcare utilization. Results: Under the 'physician to optician ratio', there would be a surplus of 83~700 opticians in 2010 and an undersupply of 15 to surplus of 6,118 opticians in 2025. Under the 'population to optician ratio', there would be a surplus of 1,055 opticians in 2010 and surplus of 9,376 opticians in 2025. Conclusions: We concluded that there would be oversupply for opticians until 2025, although the shortage and surplus of opticians might depend on the ratio's criteria. Hence, policies would need to be developed that could solve the imbalance in requirements and supply for opticians.
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