摘要：The solubility of ammonium tungstate in a special hydrothermal condition is exploited to synthesize uniform microspheres of Ce-Cu-W-O *** to their W-undoped counterparts,they possess more Ce^3+ and oxygen vacancies,thereby promoting oxygen *** formed rich WO3 surface can effectively provide acid sites,which is helpful for adsorption of vinyl chloride and interrupting the C-Cl *** addition,the presence of WO3 induces the formation of finer CuO nanoparticles with respect to the traditional coprecipitation method,thereby resulting in a better *** from both the enhanced acidity and reducibility,the Ce-Cu-W-O microspheres deliver excellent low-temperature vinyl chloride oxidation activity(a reaction rate of 2.01×10^-7 mol/(gcat·s)at 250℃)and high HCl ***,subtle deactivation occurs after the three cycling activity tests,and a stable vinyl chloride conversion as well as mineralization are observed during the 72-h durability test at 300℃,which demonstrates good thermal *** strategy can provide new insights into the design and synthesis of metal oxides for catalytic oxidation of chlorinated volatile organic compounds.

摘要：重庆黔江正阳盆地位于川东南—湘鄂西隔槽式褶皱带中,发育上白垩统正阳组,其1段为冲、洪积相砾岩,2段为河、湖相砂岩、粉砂岩,含丰富的恐龙化石。该盆地是燕山运动在川东南—湘鄂西隔槽式褶皱带中形成的典型山间盆地,研究该盆地的构造—沉积演化对探讨晚白垩世渝东南构造演化具有重要意义,但目前针对该盆地的研究较少。笔者等通过测量和分析正阳组中的沉积、构造特征,探讨了盆地的控盆断裂、古水流方向、沉积物来源以及构造演化史。对正阳组古流向恢复的研究表明,其物源主要来自西侧。燕山期,北西—南东向的区域挤压作用在川东南地区形成了广泛分布的节理系及逆冲断层,这些断层随着挤压应力的持续将各滑脱层连通,岩层在断坡附近堆叠,背斜扩展,逐渐形成隔槽式褶皱。燕山末期,渝东南地区在局部拉张的构造背景下发育了正断层——“阿蓬江断裂”,其控制了正阳盆地的形成,并形成“东断西超、东低西高”的古地理格局,西侧地质体为盆地提供物源,沉积了正阳组。此后,局部挤压使得该地区抬升,遭受剥蚀,南侧抬升剥蚀较北侧明显。

摘要：【目的】从图书信息中快速生成书籍的宣传语。【方法】基于提示学习的思想将爬取的图书信息构造为数据集,使用数据增强、关键词抽取增加信息,最后输入T5 PEGASUS得到基础宣传语。当书评数量达到阈值时加入书评的摘要。【结果】本文模型在数据集上的 Rouge-1、Rouge-2、Rouge-L相较于最优的基线模型分别提升29.0%、37.6%、31.9%,加入书评的摘要能体现用户的兴趣点。【结论】根据图书语料特点设计的实验流程所生成的宣传语具有实际应用价值。