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为提高跨流域引水工程受水水库引水有效性,研究了耦合长期径流预报信息的跨流域引水受水水库调度模型。首先选取汛期径流预报信息,采用径流预报概率修正先验概率来描述径流的不确定性,建立了贝叶斯随机动态规划模型(BSDP-LTF)。然后将模型应用于碧流河水库,并与仅考虑径流相关的随机动态规划模型(SDP-I)、仅考虑长期预报信息的随机动态规划模型(SDP-LTF)进行比较。比较结果得出在供水保证率基本一致且不增加调度风险的情况下,BSDP-LTF模型相比SDP-I、SDP-LTF模型,可分别减少引水8.2%、4.1%。表明贝叶斯随机动态规划模型BSDP-LTF有效改进了径流描述,提高了跨流域引水的有效性。 相似文献
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Based on the Burgers equation and Manley?Rowe equation, the derivation about nonlinear interaction of the acoustic waves has been done in this paper. After nonlinear interaction among the low-frequency weak waves and the pump wave, the analytical solutions of acoustic waves’ amplitude in the field are deduced. The relationship between normalized energy of high-frequency and the change of acoustic energy before and after the nonlinear interaction of the acoustic waves is analyzed. The experimental results about the changes of the acoustic energy are presented. The study shows that new frequencies are generated and the energies of the low-frequency are modulated in a long term by the pump waves, which leads the energies of the low-frequency acoustic waves to change in the pulse trend in the process of the nonlinear interaction of the acoustic waves. The increase and decrease of the energies of the low-frequency are observed under certain typical conditions, which lays a foundation for practical engineering applications. 相似文献
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全球变暖的问题正变得日益严峻, 碳减排碳中和已成为国际社会的共识和努力目标。作为CO2减排的重要方式之一, 二氧化碳捕集、利用与封存(Carbon Capture, Utilization and Storage, CCUS)近年来备受关注并且发展迅猛。CO2海洋封存作为其中一种最具潜力的减排方式, 了解其发展现状对进一步研究CO2封存具有重要的参考价值。本文介绍了CO2海洋封存的方法和封存机理, 总结了该技术在国内外研究进展。此外, 文章还概述了我国在CO2海洋封存上的巨大潜力和库源匹配上的优势, 以及海洋封存对环境可能造成的影响。最后, 指出推进CO2海洋封存技术的研究并开发相应的能力, 将有助于加速推进碳减排进程、尽快实现碳中和目标。 相似文献
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