摘要：Clearly understanding the structure-function relationship and rational design of efficient CO2 electrocatalysts are still the *** article describes the molecular origin of high selectivity of formic acid on N-doped SnO2 nanoparticles,which obtained via thermal treatment of g-C3N4 and SnCl2·2H2O *** with density functional theory(DFT)calculations,we discover that N-doping effectively introduces oxygen vacancies and increases the charge density of Sn sites,which plays a positive role in CO2 *** addition,N-doping further regulates the adsorption energy of^*OCHO,^*COOH,^*H and promotes HCOOH *** from above modulation,the obtained N-doped SnO2 catalysts with oxygen vacancies(Ov-N-SnO2)exhibit faradaic efficiency of 93% for C1 formation,88% for HCOOH production and well-suppression of H2 evolution over a wide range of potentials.

摘要：Designing highly selective and efficient singleatom electrocatalysts is essential for ammonia production under ambient conditions. This paper describes a density functional theory study on exploring the performance trends of transition metal complexes with P-based ligands in nitrogen reduction reaction(NRR) and further develops a design principle for high-performance single-atom catalysts(SACs)of NRR. Among the explored catalysts, W@BP(0.40 eV),Ta@BP(0.47 eV), and Nb@BP(0.53 eV) are identified as remarkable candidates with low free energy change in the potential-limiting step, high stability and high electrical conductivity for NRR. It is worth noting that almost all SACs with P-based ligands exhibit high NRR selectivity, due to the fact that they adsorb *N_(2) more strongly than *H. The adsorption free energy of *N_(2) H can be considered as a descriptor for the intrinsic activity trends in NRR. Furthermore, by constructing a volcano plot of the activity against the electronic charge on metal centers, it is demonstrated that the metal center with a moderate amount of positive charge can promote the catalytic performance of NRR.

摘要：Cerium‐based catalysts are very attractive for the catalytic abatement of nitrogen oxides(NOx)emitted from stationary ***,the main challenge is still achieving satisfactory catalytic activity in the low‐temperature range and tolerance to SO2 *** the present work,two series of Mo‐modified CeO_(2)catalysts were respectively obtained through a wet impregnation method(Mo‐CeO_(2))and a co‐precipitation method(MoCe‐cp),and the roles of the Mo species were systematically *** tests showed that the Mo‐CeO_(2)catalyst displayed much higher NO conversion at low temperature and anti‐SO2 ability than MoCe‐*** optimal Mo‐CeO_(2)catalyst displayed over 80%NO elimination efficiency even at 150°C and remarkable SO2 resistance at 250°C(nearly no activity loss after 40 h test).The characterization results indicated that the introduced Mo species were highly dispersed on the Mo‐CeO_(2)catalyst surface,thereby providing more Brønsted acid sites and inhibiting the formation of stable adsorbed NOx *** factors synergistically promote the selective catalytic reduction(SCR)reaction in accordance with the Eley‐Rideal(E‐R)reaction path on the Mo‐CeO_(2)***,the molybdenum surface could protect CeO_(2)from SO2 poisoning;thus,the reducibility of the Mo‐CeO_(2)catalyst declined slightly to an adequate level after *** results in this work indicate that surface modification with Mo species may be a simple method of developing highly efficient cerium‐based SCR catalysts with superior SO2 durability.

摘要：当前我国文化创意产业的发展势头迅猛,市场化程度较高,在取得不俗成绩的同时还存在着创意不足、产业不大、内涵不深等短板。可采取加强顶层设计,合理规划文化创意产业布局;健全文化知识产权保护制度和股权激励机制;大力培养具有匠人精神的创意人才;注重互联网+背景下的新技术引进与创新;积极开发国内外两个文创市场等措施来调整完善文化创意产业的供给侧,促使其稳健发展。

摘要：相较于传统的惯性约束聚变及磁约束聚变,磁化靶聚变技术可能是一种实现纯聚变更低廉更有效的途径。针对中国工程物理研究院流体物理研究所设计的"荧光-1"实验装置,利用二维磁流体力学模拟程序MPF-2D,从理论上详细分析了各实验输入参数(如初始磁场、初始密度、主磁场等)对该装置上反场构形性质的影响。为即将进行的实验推荐了三组实验输入参数:初始磁场0.3T,初始密度7×1015 cm-3,磁镜场-2.0^-1.0T,主磁场-4.0^-3.0T。

摘要：动画角色是一部动画片最耀眼的灵魂和最成功的商标,是动画片成功与否的前提与基础。中国早期动画片曾经历过一个辉煌的时代,涌现出一批优秀的动画影片,这些辉煌便是基于民族性的文化内涵。目前国内动画设计已基本丧失了原本拥有的民族化特性,角色设计相对落后,缺乏创意与识别度。因此,塑造出鲜明、生动并具有民族文化内涵的动画角色是整个动画行业的一项重要工作,更是民族文化内涵发展及传承的基础。

摘要：一幅珍贵的舞蹈画面——青海同德出土的舞蹈纹彩陶盆李露露图１在《全国考古新发现精品展》中，展出一件青海省同德出土的舞蹈盆，给我留下深刻的印象。众所周知，１９７３年曾在青海大通上孙家寨马家窑文化墓地出土一件舞蹈盆，俗称大通舞蹈纹彩陶盆，在陶盆内壁上有三组...

摘要：2022年,隈研吾在北京举办了一场“五感的建筑”的建筑设计展览,展现了对时代建筑的思考。隈研吾始终以“负建筑”“反造型”“微粒建筑”等对建筑界具有哲学价值的主张为设计理念,在经历变革后进一步发展和思考建筑如何诉诸五种感官,让人类身心健康且自由。这次关于“五感的建筑”主张体现了隈研吾有关建筑设计的全新思潮。文章从五种感官出发,分析隈研吾以微粒理论为基础的有关“五感的建筑”的主张。

摘要：为提高工作流的柔性,解决工作流模型变更引起的流程实例迁移问题,提出了即时变更处理方法.该方法基于Petri网模型,用关系矩阵定义节点路由,用状态标识矩阵描述流程实例执行状态,通过变更处理算法查找可越过节点和迁移节点,实现了流程实例的即时变更.最后以更改签收流程为例,验证了文中方法的可行性.

摘要：为控制新冠肺炎疫情蔓延,政府采用隔离政策,这导致城市人群出现隔离后遗症及身心创伤。文章以心理亚健康人群为研究对象,结合心理亚健康人群的个体差异和亚健康程度,探索面向此类人群的森林康复景观设计方法,旨在构建自然治愈的森林康复花园。