摘要：Heterostructured photocatalysts provide an effective way to achieve enhanced photocatalytic performances through efficient charge *** both wide-and narrow-band-gap photocatalysts have been widely investigated,the charge separation and transfer mechanism at the contacting interface of the two has not been fully ***,a novel SrTiO3/BiOI(STB)heterostructured photocatalyst was successfully fabricated by using a facile *** heterostructure in the photocatalyst extends the photoabsorption to the visible light range,and thus,high photocatalytic NO removal performance can be achieved under visible light irradiation.A combination of experimental and theoretical evidences indicated that the photogenerated electrons from the BiOI semiconductor can directly transfer to the SrTiO3 surface through a preformed electron delivery *** electron transfer was expected between the SrTiO3 and BiOI surfaces under light irradiation,and leads to efficient ROS generation and thus a high NO conversion ***,in situ diffused reflectance infrared Fourier transform spectroscopy revealed that STB can better inhibit the accumulation of the toxic intermediate NO2 and catalyze the NO oxidation more *** work presents a new insight into the mechanism of the interfacial charge separation in heterostructures and provides a simple strategy to promote the photocatalytic technology for efficient and safe air purification.

摘要：To optimize the electronic structure of photocatalyst,a facile one‐step approach is developed for the simultaneous realization of Zn‐doping and surface oxygen vacancies(SOVs)formation on SnO_(2).The Zn‐doped SnO_(2)with abundant SOVs exhibits efficient and stable performance for photocatalytic degradation of toluene under both low and high relative *** and theoretical calculations results show that the synergistic effects of Zn‐doping and SOVs on SnO_(2)can considerably boost the charge transfer and separation *** the in situ DRIFTS and theoretical calculations methods,it is revealed that the benzene ring of toluene is opened at benzoic acid on the SnO_(2)surface and selectively at benzaldehyde on the Zn‐doped SnO_(2)*** implies that Zn‐doped SnO_(2)photocatalysts shorten the pathway of toluene degradation,and toxic intermediates can be significantly *** work could provide a promising and sustainable route for safe and efficient removal of aromatic VOCs with photocatalytic technology.

摘要：把LIC算法应用到非真实感绘制中,提出一种自适应流体艺术图的LIC绘制方法.对源图像亮度分量计算切矢量场,然后对其进行增强、平滑处理获得结构矢量场;通过随机扰动源图像获得纹理参考图像;根据结构矢量场和纹理参考图像的局部特征产生可变的LIC积分步长和步数,自适应地处理纹理参考图像;最后对绘制效果进行颜色渲染,生成具有丰富颜色特征的流体艺术图.实验表明,该方法能够较好地模拟诸如梵高画的流体艺术风格,呈现生动、灵活的波动感.

摘要：分析三维CAD中基本数据类型,并抽取面向管理的结构化信息;定义了数据间的关系类型及数据生命周期状态;给出数据约束和关联定义.结合CAD数据的生命周期管理,提出关联数据在进行出库、入库、发布等方面的操作时,相关数据进行自动更新的规则.针对CAXA实体设计系统给出管理数据模型,并在SMARTEAM平台上实现.

摘要：提出一种基于样图的快速风格迁移方法。对经典Ashikhmin算法进行了改进,引入源图像和目标图像及其低分辨率图像的统计信息的L2距离,建立一种新的邻域一致性度量。对于重复候选点,以随机生成候选点的方法扩大搜索范围。同时采用双向扫描策略保证风格传输中纹元的视觉完整性。实验证明,改进算法能够快速有效地实现图像间的风格传输。

摘要：流线形风格化图像是印象派风格的典型代表,其艺术特点是通过流线条表现狂野与活泼的流动感,又通过色彩的层叠感表现时空的凝滞性.提出一种流线形风格化图像绘制算法,通过提取目标图像的结构矢量场,利用欧拉弹性模型进行光顺化得到流线场;通过结合凹凸映射的多源光照渲染和色彩扰动得到色彩层叠感强的纹理图;然后利用线积分卷积方法对流线场和纹理图进行合成,并利用样本梵高图像进行颜色传输得到最终的绘制结果.实验结果表明该算法自动化程度高,绘制结果具有较好的流线流动感和色彩层叠感.

摘要：提出了适用于产品初步设计的信念型承诺,给出了Agent的形式化表示,讨论了基于信念型承诺的Agent协作机制。针对复杂产品初步设计,建立了基于MAS的协同设计环境,并将基于信念型承诺的协作机制应用到该环境中。应用表明了该协作机制的有效性。

摘要：首先建立任务调度问题的目标模型,在分析Q学习算法的基础上,给出调度问题的马尔可夫决策过程描述;针对任务调度的Q学习算法更新速度慢的问题,提出一种基于多步信息更新值函数的多步Q学习调度算法.应用实例表明,该算法能够提高收敛速度,有效地解决任务调度问题.

摘要：内部空间高大、展厅面积大、功能复杂、体型多变是会展类建筑的典型特点,也使得此类建筑的设计施工有别于其他类型建筑,设计施工过程中会遇到很多的难点和要点。对烟台八角湾国际会展中心给排水设计及施工要点进行了梳理,分别对展厅管沟及展位坑给排水、厨房排水、基坑支护内空腔排水、管道及套管安装、卫生间给排水、室外下沉广场及下沉庭院排水、室外通道雨水排水等要点进行详细分析。

摘要：基于Tibshirani等的“GapStatistic”思想,利用样本灰度数据分布差分析了图像分布间隙的规律,并在讨论随机含义下屋脊边缘和阶跃边缘等概念的基础上,建立了图像边缘检测的多尺度随机模型,给出了图像边缘检测算法.最后通过实例验证了该模型的抗噪声与多尺度特性.