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- Cai, Xiao, et al.
(författare)
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高Ka 数下分子扩散效应对氨气/氢气/空气预混火焰结构的影响
- 2022
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Ingår i: Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics. - 0253-231X. ; 43:8, s. 2025-2032
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Tidskriftsartikel (refereegranskat)abstract
- Simultaneous planar laser induced fluorescence (PLIF) and Rayleigh scattering thermometry (RST) were applied to measure the key species and temperature fields of premixed ammonia/ hydrogen/air jet flames to investigate the effects of differential diffusion on flame structure. NH-PLIF technique was developed to properly characterize the reaction zone of ammonia flames. Three flames with similar laminar combustion characteristics but different Lewis numbers (Le) were investigated. Results show that the reaction zone are locally thickened for all flames at high Karlovitz number (Ka). Furthermore, the reaction layer thickness increases with the Le, indicating that the differential diffusion still plays a role in the turbulent combustion even in the distributed reaction zone regime.
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- Cao, X., et al.
(författare)
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Comparative studies on annealed proton exchange waveguides in Y-cut MgO : LiNbO3 and Z-cut LiNbO3
- 2004
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Ingår i: Wuli xuebao. - : Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences. - 1000-3290. ; 53:11, s. 3786-3793
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Tidskriftsartikel (refereegranskat)abstract
- Proton exchange waveguides in MgO:LiNbO.3 and LiNbO.3 crystals were fabricated , and the diffusion coefficients for the proton exchange process are obtained. The evolution characteristics of the waveguide index profile in the annealing process are studied. The structural deformation of the proton exchange waveguides in Mg O:LiNbO.3 and LiNbO.3 and the restoration effect of annealing are also studied tho roughly by the x-ray diffraction method and the OH-infrared absorption method. The optical and structural characteristics of annealed proton exchange waveguides in MgO:LiNbO.3 and LiNbO.3 are analysed and compared with eath other.
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- Chan, Lih Shing, et al.
(författare)
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Sexualized Female Bodies : Gender Implications on the Characterization of Lengmo in Hong Kong Print Media
- 2012
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Ingår i: Hong Kong Journal of Social Sciences. - 1021-3619. ; 42:Spring/Summer, s. 83-96
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Tidskriftsartikel (refereegranskat)abstract
- In recent years, lengmo has emerged as a popular and controversial subject in Hong Kong society. Literally meaning naïve young model, lengmo is a relatively new occupation that allows young women who lack the figure of professional models to enter the entertainment industry. These young women, mostly in sexy appearance, become a social phenomenon propelled by local print media. This paper analyzes how Hong Kong print media characterize lengmo by endorsing them as sexualized subjects. These characterizations imply the discourse of sexualizing female bodies. Although seemingly pushing the expression of female sexuality into social spaces, they do not liberate women in pursuit of sexual autonomy. Such implication entails the patriarchal ideology in which the operation of local print media is grounded.
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