摘要：This paper discusses the design of a customer satisfaction measurement index system of erpress mail service. It presents objectives and principles of the design based on hierarchical structures. We have devised a diagram for modeling customer satisfaction, and a detailed analysis of customer satisfaction is conducted. This paper presents our customer satisfaction model and analysis results.

摘要：Additive manufacturing （AM） permits the fabrication of functionally optimized components with high geometrical complexity. The opportunity of using porous infill as an integrated part of the manufactur- ing process is an example of a unique AM feature. Automated design methods are still incapable of fully exploiting this design freedom. In this work, we show how the so-called coating approach to topology optimization provides a means for designing infill-based components that possess a strongly improved buckling load and, as a result, improved structural stability. The suggested approach thereby addresses an important inadequacy of the standard minimum compliance topology optimization approach, in which buckling is rarely accounted for; rather, a satisfactory buckling load is usually assured through a post-processing step that may lead to sub-optimal components. The present work compares the stan- dard and coating approaches to topology optimization for the MBB beam benchmark case. The opti- mized structures are additively manufactured using a filamentary technique. This experimental study validates the numerical model used in the coating approach. Depending on the properties of the infill material, the buckling load may be more than four times higher than that of solid structures optimized under the same conditions.

摘要：在对已建坝的加固过程中,必须考虑施工中的溃坝风险,权衡加固将产生的效益,考虑将风险降到最低程度的施工措施。在台湾省曾文坝水位抬高项目建设中,最大的施工风险是当坝顶因开挖而降低高程时洪水引起的漫顶。为了保证施工期的安全,根据渗流分析,超高复核,大坝动应力及稳定性分析,洪水演进分析等成果,权衡了大坝的性能、经济效益及加固工期等要素,提出了一个更为全面妥善的设计方案,而不是仅仅简单地在上下游铺设滤层。

摘要：针对雨水滞蓄设施在城区减洪之设置方式及容量计算,以就地消减雨洪(On-site Control)及分散配置原则提出设置规划流程与容量计算方式。对于雨水滞蓄措施之减洪机制进行水文分析,并选择台湾台北县汐止地区为算例进行规划。与目前以减少开发增加洪峰量为目的之滞洪设施规划方式相比,本研究提出之规划方式可同时减少开发增加径流峰值与体积,且所需设计容量较少。

摘要：在电解水制氢过程中,为了在低电位下获得超高电流密度,其关键在于打破氧生成反应的标度关系.本文中,我们设计了一种新型异质界面功能化的NiFe(OH)_(x)/Ni_(3)S_(2)电催化剂,成功地规避了析氧反应(OER)的标度关系,使ΔGHOO*-ΔGHO*的差值从3.20 eV降低到2.38 eV.所制备的NiFe(OH)_(x)/Ni_(3)S_(2)电催化剂仅需要310 mV的过电位即可获得2000 mA cm^(-2)的超高电流密度, Tafel斜率仅为20.8 mV dec^(-1).此外,在1000 mA cm^(-2)的电流密度下,稳定运行100小时后无明显的活性损失,该性能优于目前报道的OER催化剂.进一步利用密度泛函理论计算和实验结果揭示了并联催化作用机制,发现多种中间体吸附能均一化能够优化OER反应路径,从而提升超高电流密度下的OER催化性能.本文的研究结果对开发工业级高性能水分解电催化剂具有重要的指导意义.