摘要：The design and preparation of suitable supports are of great importance for gold catalysts to attain excellent catalytic performance for alcohol *** this work,we found that ZnO-CuO mixed oxides supported gold catalysts showed much better catalytic activity for base-free aerobic oxidation of benzyl alcohol than Au/ZnO and Au/CuO catalysts,and among them Au/Zn0.7Cu0.3O displayed the best catalytic *** addition,the Au/Zn0.7Cu0.3O catalyst could selectively catalyze the aerobic oxidation of a wide range of alcohols to produce the corresponding carbonyl compounds with high yields under mild conditions without *** characterizations indicated that the outstanding catalytic performance of Au/Zn0.7Cu0.3O was correlated with the small size of Au nanoparticles(NPs),good low-temperature reducibility,high concentration of surface oxygen species,and collaborative interaction between Au NPs and mixed oxide.

摘要：在软件工程中，企业系统最为吸引人也是最为需求的。本书对企业系统建模作概念性的介绍和全面地综述。提出了分析与设计基于表单的企业系统的一种特殊目的建模技术。对特殊领域建模语言一直存在着强烈的需求。本书的作者来自科学家和对此类商业应用程序有兴趣的专业人员，他们以一种创新的方法修改了已被广泛接受的基本建模技术，实现对所需应用程序领域建模框架的优化。

摘要：背景:泰国中部的三所指定医院。目的:检测由指定医院分离的结核菌的种群结构。设计:收到的来自泰国中部医院的211株细菌分离株与IS6110探针和其它探针经过Southern杂交进行研究。结果:观察到仅有一个IS6110拷贝的菌株43株。这些菌株能进一步被DR和PGRS特异性探针加以区分。具有相似杂交形式的菌株的两大组被分开。北京家族含80株是以前曾报道过广泛在中国、蒙古、泰国和韩国发现的菌株。Nonthaburi组29株菌株是本地菌株。患者的年龄、性别和HIV状态与被特定杂交形式的菌株感染的机会无明确的相关。尽管如此,仍发现被分簇的菌株在北京家族和Nonthaburi组的成员之间更为普遍。结论:IS6110的Southern杂交在泰国结核病的流行病学研究中被发现是有用的。北京家族的存在被证实。北京家族在几个亚州国家中的不寻常的广泛传播值得进一步调查。

摘要：This paper investigates an optimal investment strategy on consumption and portfolio problem, in which the investor must withdraw funds continuously at a given rate. By analyzing the evolving process of wealth, we give the definition of safe-region for investment. Moreover, in order to obtain the target wealth as quickly as possible, using Bellman dynamic programming principle, we get the optimal investment strategy and corresponding necessary expected time. At last we give some numerical computations for a set of different parameters.

摘要：为了在保证结果精度的情况下加快运算速度,改进了矩阵补全的代表性算法——奇异值门限(SVT)算法.首先对于输入矩阵进行规整化处理,之后在每一步的迭代中使用奇异值分解算法对矩阵进行恢复.由于每个迭代步中奇异值分解的计算量很大,文中借鉴随机矩阵奇异值分解算法,提出使用块克雷洛夫迭代近似奇异值分解算法和子空间复用技术的快速SVT算法.使用彩色图像和电影评分矩阵对算法进行实验的结果表明,快速SVT算法在不影响图像恢复和评分数据预测效果的同时显著地缩短了计算时间;在图像恢复和电影评分预测的实验中,分别取得了高达7.1倍和3.2倍的加速比.

摘要：This article analyzes the application of Omaha system in perioperative continuation nursing and discharge follow-up of patients undergoing total hip arthroplasty in China, and combine the Omaha system with mobile medical to design a mobile management platform APP suitable for patients with total hip arthroplasty, and strengthen professional training for nurses, with the cooperation of multi-disciplinary teams, will be widely applied and promoted in clinical, in order to better manage and improve the nursing outcomes of patients with total hip arthroplasty and enhance the quality of life of patients.

摘要："实践八号"乳胶室探测器是我国首次用于空间观测高能电子及伽玛射线的乳胶室探测器.介绍"实践八号"乳胶室探测器的设计原理、数据分析方法、设计过程和初步观测结果等."实践八号"乳胶室探测器空间观测时间为15天,可探测的粒子能量范围为100 GeV～5 TeV.

摘要：Harvesting the promising high energy density of advanced electrode materials in lithium-ion batteries is critically dependent on a mechanistic understanding on how the materials function and degrade along with the battery ***,we tracked phase transformations during(de)lithiation of Sb_(2)Se_(3) single crystals using in situ high-resolution transmission electron microscopy(HRTEM)technique,and revealed electro-chemo-mechanical evolution at the reaction *** effect of this electro-chemo-mechanical coupling has a complicated interplay on the lithiation kinetics and causes various types of defects at the reaction front,including dislocation dipoles,antiphase boundaries,and *** return,the formed cracks and related defects build a path for fast diffusion of lithium ions and trigger a highly anisotropic lithiation at the twisted reaction front,giving rise to the formation of presumably "dead" Sb_(2)Se_(3) nanodomains in amorphous Li_(x)Sb_(2)Se_(3).The detailed mechanistic understanding may facilitate the rational design of high-capacity electrode materials for battery applications.

摘要：Honeycomb structures and other sandwich materials are being used as designs which have demanded high-stiffness and lightweight structures. The embedding design can further decrease the total weight of the products. Embedding will inevitably generate defect of the honeycomb and cause stress concentration. This study mainly discusses the tensile stress distribution near the defect in a quantitative way with the finite element and analytical method. The prediction function of the stress distribution is proposed. X and y directional stress distribution properties are found. These results are proved to be validate through a representative defect case. The bending stress distribution is investigated through material mechanics method and the prediction equation of the maximum bending stress is given.

摘要：面向纤维复合材料与结构的优化设计需要,建立高效准确的纤维复材细观力学仿真工具具有重要意义.本文首次提出了包含内嵌纤维的三维计算晶粒(computational grains),用于纤维增强复合材料的直接细观力学建模,基于所开发的纤维计算晶粒方法,可以直接构造含有多根随机分布纤维的代表性体积单元(RVE).此外,本文提出了一种基于缩放柱调和函数的Papkovich-Neuber解来表征纤维和基体中独立的Trefftz试函数位移场,并且开发了一种新的多场边界变分原理来计算纤维计算晶粒的刚度矩阵.数值算例表明,对于内嵌大量随机分布纤维的RVE,纤维计算晶粒不需要构造复杂的网格,即可快速计算RVE的精确应力场,并预测其有效力学性能.此外,这也是内嵌纤维的三维有限元单元的首次提出.