• 제목/요약/키워드: health science

검색결과 27,818건 처리시간 0.054초

섬광검출을 위한 플라스틱광섬유에서의 체렌코프 빛 측정 및 제거 (Measurement and removal of a cerenkov light in a plastic optical fiber to detect a scintillating light)

  • 조동현;장경원;유욱재;신상훈;이봉수;박병기;조효성;김신
    • 센서학회지
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    • 제17권2호
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    • pp.100-105
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    • 2008

  • The objectives of this study are to measure and to remove Cerenkov lights generated in a fiber-optic radiation sensor by a charge-coupled device. we have fabricated a fiber-optic radiation sensor which comprises an organic scintillator, a plastic optical fiber and a charge-coupled device. Charge-coupled device as a light measuring tool has many advantages which are easy in multi-dimensional measurements, high spatial resolution and relatively low cost.

  • https://doi.org/10.5369/JSST.2008.17.2.100 인용 PDF KSCI

세 가지 방식으로 제작한 하악 총의치의 중합 전후에 따른 인공치아 위치 3차원 분석 (Three-dimensional analysis of artificial teeth position according to three type complete mandibular denture before and after polymerization)

  • 박진영;김동연;김원수;이광영;정일도;배소연;김지환;김웅철
    • 대한치과기공학회지
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    • 제40권4호
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    • pp.217-224
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    • 2018

  • Purpose: The aim of this study was to evaluate accuracy of three type complete mandibular denture of before and after polymerization. Methods: Mandibular edentulous model was selected as the master model. 15 study models were made by Type IV stone. Wax complete mandibular dentures were produced by the denture base and artificial teeth. Before and after curing, STL files were obtained using a blue scanner. By superimposing the digitized complete mandibular denture data(after curing) with the CAD-reference(before curing) three-dimensionally, visual fit-discrepancies were drawn by calculating the root mean square (RMS) and visualized on a color-difference map. Each calculated RMS-value was statistically analyzed by 1-way analysis of variance(ANOVA) (${\alpha}=.05$). Results: Mean(SD) RMS-values was OM group $88.98(6.10){\mu}m$, BM group $82.35(13.46){\mu}m$, BDM group $77.83(9.46){\mu}m$. The results of the 1-way ANOVA showed no statistically significant differences in the RMS values of the Three groups for the material (P > .241). Conclusion : Deformation of artificial teeth position was observed in all groups after resin polymerization. But the values, all group were within the clinically acceptable range. The values of BDM group showed the least deformation than the other two groups.

  • https://doi.org/10.14347/kadt.2018.40.4.217 인용 PDF KSCI HTML

Causality Analysis for Public and Private Expenditures on Health Using Panel Granger-Causality Test

  • Lee, Su-Dong;Lee, Junghye;Jun, Chi-Hyuck
    • Industrial Engineering and Management Systems
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    • 제14권1호
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    • pp.104-110
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    • 2015

  • Every year governments spend their national budget on public health in order to reduce financial burden of individuals on health. Although it has been widely believed that the increase of public expenditure on health decreases private health expenditure, it has not been proved by analysis with real data. For better understanding, we conducted an empirical study on the real data of 17 OECD countries-Australia, Austria, Canada, Denmark, Finland, Germany, Iceland, Ireland, Japan, Korea, New Zealand, Norway, Portugal, Spain, Sweden, the United Kingdom, and the United States. The panel Granger-causality test is used to verify the cause-and-effect relationship between the two expenditures. As a result, public expenditure on health has a 3 to 4 year-lagged negative effect on private health expenditure in the cases of the 16 countries except for the United States.

  • https://doi.org/10.7232/iems.2015.14.1.104 인용 PDF KSCI