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The gradient elastic constitutive equation incorporating the second gradient of the strains is used to determine the monochromatic elastic plane wave propagation in a gradient infinite medium and thin rod.The equation of motion,together with the internal material length,has been derived.Various dispersion relations have been determined.We present explicit expressions for the relationship between various wave speeds,wavenumber and internal material length. 相似文献
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物联网和云计算等技术的发展使得数据中心呈现爆炸性的增长,数据中心能耗大、能效利用率低、能耗和能效管理信息化程度不高,造成能源的巨大浪费。本文基于人工智能算法,从能耗指标PUE智能优化和能量智能管理调度角度,提供智慧能源管理解决方案。 相似文献
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氢能作为新型清洁能源,有助于构建高效的新型能源体系。本文分析了国内氢能发展现状和技术路线,讨论了信息通信行业的能源利用和供备电现状及其存在的问题,探讨了氢能在通信行业的多种应用场景及方案,并展望了未来氢能在信息通信行业的应用。 相似文献
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The 1.3-μm polarization-insensitive superluminescent diodes (SLDs) with weak tensile strained multiplequantum-well (MQW) and complex strained MQW were demonstrated theoretically based on the simulation of energy band structure and gain spectra at different injected carrier densities. Compared with the weak tensile strained MQW, the complex strained MQW gets higher modal gain and better modal gain matching between TE and TM modes, and the polarization sensitivity of TE and TM optical spectra can remain less than 1.0 dB over a bandwidth of 200 nm. 相似文献
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