摘要：Understanding the influence of HCl on the NH_(3)-selective catalytic reduction reaction mechanism is crucial for designing highly efficient denitrification *** formation of chlorate species on the surface of the synthesized SbCeO_(x)catalyst,induced by HCl,significantly enhances low-temperature activity,as evidenced by a 30%increase in NO conversion at 155℃.Furthermore,it improves N_(2)selectivity at high temperatures,with a notable 17%increase observed at 405℃.Both experimental results and density functional theory calculations confirm that chlorate species form at Ce *** formation facilitates the creation of oxygen vacancies,boosting the oxygen exchange *** also increases NH_(3)adsorption at the Ce sites,promotes the formation of Sb-OH,and reduces competitive OH adsorption on these ***,compared with the reaction mechanism without HCl,the presence of chlorate species enhances NH_(3)adsorption and activation,which is vital for subsequent catalytic reactions.

摘要：The conventional 2D design method of culverts separated from 3D model cannot directly visualize the process of creating and renewal process. This paper explores graphics application framework of Open GL based on MFC, developing the 3D visualization system of hydraulic culvert. This system effectively integrats with building design, structural design and parametric design and image processing technology. The results can be shown by 3D visualization design.

摘要：根据笔者参加全国青年教师教学竞赛、北京高校青年教师教学基本功比赛、数学微课竞赛等教学比赛的备赛经历,以微分几何课程中等周不等式一节为例,介绍数学课程在教学竞赛中的教学设计方法,并总结得到数学教学竞赛中教学设计四个要点:以学生为中心、创新教学内容、突出学科思想、展现课程魅力.

摘要：对工业化和城市化进程中淘汰的木制品进行改造和升级,使其重新融入人们的生活之中,从而缓解资源消耗带来的一系列问题。本文以云南木渣工艺对传统木制品的开发为案例,探讨传统木制品改造的本质,结合人们的生活诉求、科学技术、经济特征和国家政策等时代特性,对传统木制品固有价值进行解构与重塑。解构阶段是对固有价值的物质基础和精神内涵进行分析与评估,发现其存在的优势与不足;重塑阶段是对固有价值的二次整合,意在延续其优势,转化其不足。

摘要：微分方程作为非数学类学生必修的一门综合性课程,课程概念抽象、难度大,对教师挑战度高.本文以欧拉拉格朗日方程为例介绍课程的教学设计与授课体会,在考虑非数学专业学生认知规律的前提下,着重于培养学生的数学思维,引导学生将未知问题化为已知问题,在课堂上既完成了知识点的传授,也完成了育人任务.

摘要：利用铝污泥、钢渣和沸石制备了3种铝污泥复合填料——铝污泥-沸石、铝污泥-钢渣、铝污泥-沸石-钢渣,研究了其物理特性和对磷的等温吸附性能,并应用于人工湿地小试系统中,探讨其对湿地水质的净化效果。结果表明:相较铝污泥和传统湿地填料,3种复合填料具有较大的体积密度、孔隙率和比表面积;3种复合填料对磷的吸附效果存在较大差异,表现为铝污泥-钢渣>铝污泥-沸石>铝污泥-沸石-钢渣;3种复合填料对人工湿地进水中化学需氧量(CODCr)的去除率无显著差异,均为70%左右;对总磷(TP)、总氮(TN)、氨氮(NH3-N)的去除率差异较大,其中铝污泥-钢渣、铝污泥-沸石对TP去除率较高(93%以上),铝污泥-沸石、铝污泥-沸石-钢渣对TN和NH3-N去除率较高(TN高于65%,NH3-N高于77%);铝污泥-沸石复合填料对人工湿地污染物去除的综合效果最好,可使人工湿地出水水质达到GB18918—2002《城镇污水处理厂污染物排放标准》一级A标准。

摘要：创新教学的最终的目标是立德树人,培养学生学会主动思考,主动学习.以微分几何伪球面一节为例,探索了探案式的创新教学模式,让学生在全身心地探案解谜过程中学到了知识,培养了科研创新能力,收到了良好的教学效果.