• Title/Summary/Keyword: Thomson

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공기입 타이어의 발전사

  • Kim, Min
    • The tire
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    • s.140
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    • pp.8-21
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    • 1989
  • 공기입 타이어는 1845년 Robert William Thomson이 처음으로 발명하였고, 그로부터 43년이 지난 1888년에 John Boyd Dunlop이 재발명하였는데, 이는 거의 6,000년에 걸친 바퀴의 역사에서 신기원을 이룩한 것이다.

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Particle-in-cell simulation feasibility test for analysis of non-collective Thomson scattering as a diagnostic method in ITER

  • Zamenjani, F. Moradi;Asgarian, M. Ali;Mostajaboddavati, M.;Rasouli, C.
    • Nuclear Engineering and Technology
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    • v.52 no.3
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    • pp.568-574
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    • 2020
  • The feasibility of the particle-in-cell (PIC) method is assessed to simulate the non-collective phenomena like non-collective Thomson scattering (TS). The non-collective TS in the laser-plasma interaction, which is related to the single-particle behavior, is simulated through a 2D relativistic PIC code (XOOPIC). For this simulation, a non-collective TS is emitted from a 50-50 DT plasma with electron density and temperature of ne = 3.00 × 1013 cm-3 and Te = 1000 eV, typical for the edge plasma at ITER measured by ETS system, respectively. The wavelength, intensity, and FWHM of the laser applied in the ETS system are λi,0 = 1.064 × 10-4 cm, Ii = 2.24 × 1017 erg=s·㎠, and 12.00 ns, respectively. The electron density and temperature predicted by the PIC simulation, obtained from the TS scattered wave, are ne,TS = 2.91 × 1013 cm-3 and Te,TS = 1089 eV, respectively, which are in accordance with the input values of the simulated plasma. The obtained results indicate that the ambiguities rising due to the contradiction between the PIC statistical collective mechanism caused by the super-particle concept and the non-collective nature of TS are resolved. The ability and validity to use PIC method to study the non-collective regimes are verified.

Unrecorded Species of Cerambycidae from Korea (한국산 하늘소 (천우)과 갑충의 미기록종)

  • 조복성;양서영;윤일병
    • The Korean Journal of Zoology
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    • v.6 no.1
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    • pp.3-4
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    • 1963
  • 1962년 6월 2일부터 3 일간 강원도 설악산에서 다음과 같이 하늘소과의 미기록종 3 종을 채집, 동정하였으므로 이에 발표한다. 1. Xenicotela fuscula BATES 꼬마수염치레하늘소(신칭). 2. Uraecha bimaculata THOMSON 자귀나무하늘소(신칭).3. Exocentrus testudineus MATSUSHITA 불목하늘소(신칭).

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