The impact of tobacco tax reforms on poverty in Mexico.
The impact of tobacco tax reforms on poverty in Mexico.
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烟草税改革对墨西哥贫困的影响。
DOI：
10.1007/978-3-319-48251-4_141
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Huesca L
中科院分区：
文献类型：
--
作者：
Huesca L
熔体超声空化处理显著改善了传统和先进金属材料的下游性能和质量。然而，由于缺乏基本知识，这种技术在处理大体积熔体方面的转移受到阻碍，允许在熔体流动中进行超声波处理。在这项研究中，我们提出了一种先进的数值模型的实验验证结果，该模型适用于连续流动过程中铝液的声空化处理。这是通过使用校准的高温空腔计实现的。分析了洗涤槽中不同位置的声波频谱，并在感兴趣的频率上计算了声压。
Ultrasonic cavitation treatment of melt significantly improves the downstream properties and quality of conventional and advanced metallic materials. However, the transfer of this technology to treating large melt volumes has been hindered by a lack of fundamental knowledge, allowing for the ultrasonic processing in the melt flow. In this study, we present the results of experimental validation of an advanced numerical model applied to the acoustic cavitation treatment of liquid aluminum during continuous flow [1]. This was achieved by using a calibrated high-temperature cavitometer. The acoustic spectrum was analyzed at various points across the launder while acoustic pressures were calculated at the frequencies of interest.