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Chao Liu Liying Wang Lin Yang Famei Wang Chunhong Xu Jingwei Lv Guanglai Fu Xianli Li Qiang Liu Haiwei Mu Tao Sun Paul K. Chu 《Physics letters. A》2019,383(25):3200-3206
A single-polarization filter comprising a gold-coated photonic crystal fiber based on surface plasmon resonance is designed and investigated. The pattern matching and coupled polarization characteristics analyzed by the full-vector finite element method (FEM) and losses at 1,540 nm are achieved to 1,016.01739 dB/cm (x-pol core mode) and 33.81917 dB/cm (y-pol core mode). The crosstalk (CT) value of the 1,540 nm band is ?853.12653 dB for fiber length and the bandwidth is 850 nm. The working wavelength of the filter ranges from 1,280 nm to 1,540 nm by varying the diameter of outer air holes (), the diameter of inner air holes (), the metal film thickness (t), as well as the liquid refractive index (n). 相似文献
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Li Mengping Wang Yuanyuan Liu Yanxiu Wang Huan Song Hua 《Research on Chemical Intermediates》2022,48(4):1665-1684
Research on Chemical Intermediates - A series of coconut shell-based activated carbon (BAC-T) adsorbents with different activation temperature (T, °C) were prepared by one-step NaOH activation... 相似文献
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零价铁耦合厌氧微生物法在废水处理中的应用 总被引:1,自引:0,他引:1
零价铁(ZVI)与厌氧微生物的耦合是一项很有前景的技术,在难降解有机废水的去除中得到了广泛关注。该耦合技术将ZVI技术的高效性与厌氧生物技术的经济性有效融合,在多元微电场和厌氧微生物协同作用下,有效降低难降解有机物的生物抑制性和毒性。本文综述了此技术处理工业废水的潜在机理、实际应用中主要操作参数及影响条件以及处理含氯化合物、重金属、染料等生物难降解污染物的研究进展。归纳了ZVI与厌氧微生物耦合对上述污染物进行高效去除的研究现状,并对该技术在实际工程应用方面的可行策略进行了展望。 相似文献
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冲击整形扩径工艺是修复油水井套管损坏的常用技术,根据冲击整形的施工工艺和波
动理论,建立了套损局部位置处水泥环的损伤力学模型,以有限变形理论为基础,采用悬臂
梁力学模型,分段研究了冲击整形时钻杆屈曲的平衡位形及对套管、水泥环产生
的冲击力. 结合水泥环的应力状态, 根据脆性
材料的Mazars损伤模型,建立了水泥环的损伤力学模型. 并分析了水泥环的损伤
状态. 通过与现场测试结果对比,理论计算与实测结果误差在2.7%左右. 相似文献
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Optical Review - A novel method of gas concentration calibration for tunable diode laser absorption spectroscopy, in which spectral analysis and harmonic signal intensity ratio measurement are... 相似文献
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An emulsion interface materialization method was used to obtain amphiphilic silica Janus nanoparticles. Reducing the photosynthesis of aquatic organisms after water pollution. PW12O403− was introduced onto Janus particles by ion exchange, and an amphiphilic particle emulsion catalyst (PWO-J) was prepared. Hydrogen peroxide was used as the oxygen source, and the amphiphilicty of the catalyst was used to assemble the catalyst at the Pickering emulsion interface. The PWO-J catalyst was found to exhibit very high catalytic activity toward the oxidation of oleic acid in water-in-oil systems. The results showed that PWO-J catalysis of oxidation had similar results as CTAB and phosphotungstic acid (control system) under the same conditions. The azelaic acid recovery rate was 86.7%, and PWO-J could be reused 4 times. A reaction mechanism was proposed, and the constructed model was used to calculate a reaction rate constant of 15.32 × 10−5L•mol−1•s−1 for the PWO-J system. The PWO-J system had a lower activation energy than the control system, showing that the catalytic oxidation of oleic acid into azelaic acid was more likely to occur in the PWO-J system. 相似文献
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