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We have studied the radiation of a double-walled carbon nanotube
(DWNT) filament with a length of 4.5\,mm and a diameter of
10\,$\mu$m by applying an electric current through the filament. The
DWNT filament starts emitting incandescent light at voltage
$U=6$\,V. Emission spectra of the DWNT below temperature 1250\,K can
well be fitted to those of the blackbody radiation. The intensity of
the incandescent light shows an exponential dependence on the
voltage applied on the DWNT filaments. The resistance of the DWNT
filaments is very stable at high temperatures between 900 and
1250\,K during the emission of light in the experiments. 相似文献
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直播平台上低俗内容的传播备受诟病,其中“低程度”的低俗内容传播更是屡禁不止。为了探索直播平台上“低程度”的低俗内容传播治理机制,引入非参与互动的公众作为第三方监督群体,构建政府、非参与互动的公众、直播平台间的演化博弈模型。研究表明,政府单方面的处罚力度不会影响直播平台的最终决策,但是,非参与互动公众的监督力度对政府监管部门和直播平台的博弈决策有重要影响,当非参与互动公众的参与监督力度和政府监管部门的处罚力度处于一定水平、且这两个因子共同作用时,则会使得博弈系统向经济最优、良性治理策略的稳定状态演进。 相似文献
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