摘要：在钾离子电池石墨负极中,钾离子在石墨层间嵌入/脱出的模式能够实现储能,且具有较低工作电位和廉价等优势,表现出巨大的吸引力.然而,在缺乏足够界面保护等条件下,石墨负极在传统碳酸酯类电解液中容易发生连续的副反应,充放电容量会面临严重的持续衰减.本文从电解液设计的角度出发,针对石墨负极的钾离子存储问题,配制了阻燃的局部高浓度电解液,其特有的溶剂化结构可调控石墨表面固体电解质界面相,改善界面的结构稳定性和离子传导特性,从而实现石墨负极储钾的高稳定循环.同时,电解液的高阻燃特性也为钾离子电池的高安全性提供了保障.

摘要：Using total suspended solid （TSS） removal efficiency and hydraulic retention time （HRT） as design parameters a design guideline of a settling basin in a constructed wetland （CW） was suggested; as well as management of sediment and particle in the settling basin. The CW was desiEned to treat the piggery wastewater effluent from a wastewater treatment plant during dry days and stonnwater runoff from the surrounding paved area during wet days. The first settling basin （FSB） in the CVV was theoretically designed with a total storage volume （TSV） of 453 ms and HRT of 5.5 hr. The amount of sediment and particles settled at the FSB was high due to the sedimentation and interception of plants in the CVV. Dredging of sediments was performed when the retention rate at the FSB decreased to approximately 80%. Findings showed that the mean flow rate was 21.8 m3/hr less than the designed flow rate of 82.8 m3/hr indicating that the FSB was oversize and operated with longer HRT （20.7 hr） compared to the design HRT. An empirical model to estimate the length of the settling basin in the CW was developed as a function of HRT and desired TSS removal efficiency. Using the minimum tolerable TSS removal efficiency of 30%, the length of the FSB was estimated to be 31.2 m with 11.8 hr HRT.

摘要：在链状的起床人设计是精确地在触地地区评估疲劳损坏的钢的最关键的问题。在触地地区的起床人土壤抵抗的适当建模能由优化设计导致重要费用减小。这份报纸论述能被使用数字地模仿起床人土壤相互作用并且评估动态回答和钢的疲劳损坏的一个粘性模型在触地地区的链状的起床人。利用模型，众多的起床人土壤元素被纳入钢链状的起床人有限元素，各个沿着起床人触地地区在模仿本地基础抑制。起床人土壤相互作用粘性模型在许可的联合装载表面以内说明行为。模型将在这份报纸被代表，允许简单数字实现。更重要地，它能在钢的结构的分析以内被合并有有限元素方法的链状的起床人。模型的适用性理论上被解释，结果通过申请被显示出到一近海 8.625 钢链状的起床人例子。班机橡皮起床人土壤模型的疲劳分析结果也被显示出。根据二个模型的比较结果，粘性框架的疲劳生活分析结果是合理的，起床人土壤相互作用的水平效果能被包括。

摘要：In order to monitor deformation of high temperature components for a long time,a sensing device integrating a bridge-shaped mechanical displacement amplifier has been *** sensing device has higher resolution and accuracy than conventional ***,the relation between the magnification ratio and the structure size of the displacement amplifier is a bottleneck of sensing device *** this,the magnification ratio of a mechanical displacement amplifier is analytically derived based on its geometry *** prototypes of the displacement amplifier made in propathene are manufactured,and an experimental system is set up to validate the accuracy of the established magnification ratio *** magnification ratios and experimental magnification ratios are compared and agree well,which verifies that the proposed equation is *** analytical equation provides an effective design method for bridge-shaped mechanical displacement amplifiers with an expected magnification ratio.

摘要：Atmospheric oxygen (O_2 ) is the most crucial element on earth for the aerobic organisms that depend on it to release energy from carbon-based macromolecules. This is the first study to systematically analyze the global O_2 budget and its changes over the past 100 years. It is found that anthropogenic fossil fuel combustion is the largest contributor to the current O_2 deficit, which consumed 2.0 Gt/a in 1900 and has increased to 38.2 Gt/a by 2015. Under the Representative Concentration Pathways (RCPs) RCP8.5 scenario, approximately 100Gt (gigatonnes) of O_2 would be removed from the atmosphere per year until 2100,and the O_2 concentration will decrease from its current level of 20.946%to 20.825%. Human activities have caused irreversible decline of atmospheric O_2 . It is time to take actions to promote O_2 production and reduce O_2 consumption.

摘要：开发钙钛矿叠层太阳电池是一种可以突破单结太阳电池Shockley-Queisser极限的光伏技术.令人鼓舞的是,所有钙钛矿叠层器件,包括钙钛矿/硅、钙钛矿/钙钛矿、钙钛矿/铜铟镓硒和钙钛矿/有机叠层电池,都表现出比相应单结太阳电池更高的效率,显示出巨大的进一步突破的潜力.在叠层器件中,电荷传输材料是钙钛矿子电池的重要组成部分,它直接决定了器件的电荷传输和能量损失.一般来说,高导电性和透光性、良好的能级和化学稳定性是电荷传输材料叠层应用的关键.迄今为止,导电金属氧化物、有机分子、聚合物、富勒烯、自组装材料等各种电荷传输材料已被广泛应用于高效叠层电池.在本文中,我们首先总结了不同类型钙钛矿叠层电池的电荷传输材料的最新进展,详细讨论了材料的电学和光学性质及其对器件性能的影响.在此基础上,我们提出了叠层电池中电荷传输材料进一步发展所面临的挑战和展望.本综述将为不同钙钛矿叠层太阳电池的器件设计提供有效指导.

摘要：无线传感器网络有大量应用程序。察觉到范围和通讯范围是服务的二基本质量。在这篇论文，我们在场我们精力上的工作有效察觉到范围和通讯。我们为分别地察觉到范围题目到不同要求和限制设计几个计划。我们也建议基于小世界网络理论为大规模传感器网络与高精力效率和低潜伏扔通讯协议的国外。模拟和实验结果证明我们的计划和协议有好性能。

摘要：过滤有限的词长度(FWL ) 为线性分离时间的系统影响的问题的 nonfragile H 在这份报纸被调查。要设计的过滤器被假定与添加剂获得变化，它在过滤器实现上反映 FWL 效果。结构化的顶点隔板的一个观点被建议处理这个问题并且利用了以一套线性矩阵不平等(LMI ) 为 nonfragile H 过滤器设计开发足够的条件。设计使扩充系统变为 asymptotically 稳定并且保证 H 变细水平不到规定水平。一个数字例子被给说明建议方法的效果。

摘要：The martensitic transformation,mechanical,and magnetic properties of the Ni_(2)Mn_(1.5-x)Cu_(x)Ti_(0.5) (x=0.125,0.25,0.375,0.5) and Ni_(2-y)Co_(y)Mn_(1.5-x)Cu_(x)Ti_(0.5)[(x=0.125,y=0.125,0.25,0.375,0.5) and (x=0.125,0.25,0.375,y=0.625)]alloys were systematically studied by the first-principles *** the formation energy,the martensite is smaller than the austenite,the Ni–(Co)–Mn–Cu–Ti alloys studied in this work can undergo martensitic *** austenite and non-modulated (NM) martensite always present antiferromagnetic state in the Ni_(2)Mn_(1.5-x)Cu_(x)Ti_(0.5) and Ni_(2-y)Co_(y)Mn_(1.5-x)Cu_(x)Ti_(0.5) (y<0.625) *** y=0.625 in the Ni_(2-y)Co_(y)Mn_(1.5-x)Cu_(x)Ti_(0.5) series,the austenite presents ferromagnetic state while the NM martensite shows antiferromagnetic *** doping can decrease the thermal hysteresis and anisotropy of the Ni–(Co)–Mn–Ti *** Mn and decreasing Ti content can improve the shear resistance and normal stress resistance,but reduce the toughness in the Ni–Mn–Cu–Ti *** the ductility of the Co–Cu co-doping alloy is inferior to that of the Ni–Mn–Cu–Ti and Ni–Co–Mn–Ti *** electronic density of states was studied to reveal the essence of the mechanical and magnetic properties.

摘要：We review recent research activities on structural reliability analysis,reliability-based design optimization(RBDO) and applications in complex engineering structural *** novel uncertainty propagation methods and reliability models,which are the basis of the reliability assessment,are *** addition,recent developments on reliability evaluation and sensitivity analysis are highlighted as well as implementation strategies for RBDO.