摘要：Although graphite anodes operated with representative de/intercalation patterns at low potentials are considered highly desirable for K-ion batteries,the severe capacity fading caused by consecutive reduction reactions on the aggressively reactive surface is inevitable given the scarcity of effective protecting ***,by introducing a flame-retardant localized high-concentration electrolyte with retentive solvation configuration and relatively weakened anion-coordination and non-solvating fluorinated ether,the rational solid electrolyte interphase characterized by well-balanced inorganic/organic components is tailored in *** effectively prevented solvents from excessively decomposing and simultaneously improved the resistance against K-ion ***,the graphite anode retained a prolonged cycling capability of up to 1400 cycles(245 mA h g,remaining above 12 mon)with an excellent capacity retention of as high as 92.4%.This is superior to those of conventional and high-concentration ***,the optimized electrolyte with moderate salt concentration is perfectly compatible with graphite,providing a potential application prospect for K-storage evolution.

摘要：介绍了涂层拉拔附着力检测装置的优化设计及试验对比,结果表明:优化设计的涂层拉拔附着力检测装置能满足涂层附着力拉开法测定,测试中可以克服试样垂直不易对中、拉伸速率波动问题,通过调节可连续对漆层上不同部位试柱进行测试。采用设计的涂层拉拔附着力检测装置,其测试精度提高,测试中波动性能小,数据可靠性提高。

摘要：用实验与仿真的方法对6个不同尺寸的环隙流道进行了单相冷却传热研究。实验表明:窄环隙流道内强迫对流换热与常规流道不同,紊流区明显提前,尺寸为0.94 mm的流道只有紊流区;窄环隙流道对换热起强化、抑制的双重作用。仿真与实验结果符合较好,仿真表明芯管内径变化对窄环隙流道换热有一定影响。

摘要：AIM: To evaluate the biological functions of tissue-engineered human corneal epithelium (TE-HCEP) by corneal transplantation in limbal stem cell deficiency (LSCD) rabbit models. METHODS: TE-HCEPs were reconstructed with DiI-labeled untransfected HCEP cells and denuded amniotic membrane (dAM) in air-liquid interface culture, and their morphology and structure were characterized by hematoxylin-eosin (HE) staining of paraffin-sections, immunohistochemistry and electron microscopy. LSCD models were established by mechanical and alcohol treatment of the left eyes of New Zealand white rabbits, and their eyes were transplanted with TE-HCEPs with dAM surface outside by lamellar keratoplasty (LKP). Corneal transparency, neovascularization, thickness, and epithelial integrality of both traumatic and post transplantation eyes were checked once a week by slit-lamp corneal microscopy, a corneal pachymeter, and periodic acid-Schiff (PAS) staining. At day 120 post surgery, the rabbits in each group were sacrificed and their corneas were examined by DiI label observation, HE staining, immunohistochemistry and electron microscopy. RESULTS: After cultured for 5 days on dAM, HCEP cells, maintaining keratin 3 expression, reconstructed a 6-7 layer TE-HCEP with normal morphology and structure. The traumatic rabbit corneas, entirely opaque, conjunctivalized and with invaded blood vessels, were used as LSCD models for TE-HCEP transplantation. After transplantation, obvious edema was not found in TE-HCEP-transplanted corneas which became more and more transparent, the invaded blood vessels reduced gradually throughout the monitoring period. The corneas decreased to normal thickness on day 25, while those of dAM eyes were over 575 mu m in thickness during the monitoring period. A 45 layer of epithelium consisting of TE-HCEP originated cells attached tightly to the anterior surface of stroma was reconstructed 120 days after TE-HCEP transplantation, which was similar to the normal control eye

摘要：实际系统的奇异系统模型往往通过忽略系统的奇异摄动系统模型微分项系数矩阵中的小时间参数得到.然而,传统的奇异系统控制器设计很少考虑微分项系数矩阵的摄动.本文拓展了现有奇异系统输出动态反馈H∞控制器的设计,使得当实际闭环系统中存在小时间参数时,仍然能保持稳定并且满足一定的H∞性能指标.仿真算例说明了本文提出方法的有效性.

摘要：目的通过改善服务接触点构成要素之间的作用关系来优化服务接触点,提升用户体验。方法在分析服务接触内涵和服务要素的基础上,对服务接触点构成要素及其作用关系进行研究;基于类比设计,将服务接触点构成要素与TRIZ中物质—场模型进行类比分析,构建服务接触点模型;运用TRIZ中标准解求解方法对服务接触点模型进行优化。结果由服务接触点三要素(服务提供者、媒介和顾客)构建服务接触点模型,并通过标准解的应用改善了此模型,实现了对服务接触点的优化。结论通过构建服务接触点模型,结合TRIZ中物质—场分析工具和标准解的应用,为服务接触点的优化设计提供一种新的方法。以丰巢智能快递柜服务系统中的服务接触点优化设计为例,验证该方法的可行性及有效性。

摘要：为改善以往过于依赖人工统计分析学生考试成绩,无法挖掘成绩中所蕴含有用信息的缺陷,设计了基于决策树分类技术的学生考试成绩统计分析系统。系统的数据层利用SQL Sercer2000数据库存储系统运行过程中全部数据;业务逻辑应用层从数据层采集学生考试成绩数据后处理相关业务功能逻辑,采用决策树C4.5分类技术实现海量学生考试成绩精准分类,决策树C4.5分类技术基于信息增益率选取分类属性,采用后剪枝方法处理数据提升数据分类精度;业务逻辑层的成绩统计分析结果利用WEB服务器通过浏览器应用层传送至用户。选取某医学院研究生作为系统测试对象,系统测试结果表明:所设计系统可依据用户需求统计分析不同专业人员考试成绩,且噪声情况下仍具有较高的统计分析能力。

摘要：研究具有时变时滞的连续不确定正系统的约束控制问题.基于线性规划方法,首先设计状态反馈控制器使得相应的闭环系统是正系统且渐近稳定;然后建立在正性约束下有界的鲁棒状态反馈控制器存在的充分条件,同时给出控制器的设计方法;最后利用仿真算例验证所提出方法的有效性.

摘要：空中力量是高技术局部战争取胜的决定性因素,作战飞机是空军最关键的武器装备。基于现代武器装备的作战能力、可靠性、维修性、保障性、安全性、生存力、适应性等性能标准和作战飞机的寿命周期费用,考虑用户要求和工程设计专家意见,建立了作战飞机总体设计的综合评价准则。给出了评价准则的计算公式和作战飞机总体设计的评估方法。

摘要：通过引入TRIZ物质-场方法,解决人机交互过程中与用户注意力相关的感官交互问题。提出面向注意力的感官交互物质-场产品创新方法与流程,并将标准解内容转述为适用于解决感官交互问题的感官交互标准解。以送餐驾驶系统改进设计为例,通过对用户注意力分析,得出驾驶系统中的感官交互问题,使用感官交互物质-场模型分析问题,参考感官交互标准解获得多种求解方案,最后根据平静技术对方案进行评价并得出最佳方案。研究结果表明:将物质-场方法应用于感官交互问题的研究中,有助于面向注意力的感官交互问题向TRIZ一般问题转化和解决。