摘要：从单体系统迁移到微服务系统是当前业界对遗留系统实施再工程化的主流选项之一,基于单体遗留系统的微服务体系架构重构则是实现该迁移的关键步骤.目前学界多集中在微服务识别方法的研究上;业界虽有许多面向微服务架构的遗留系统重构的实践,但缺乏系统性的方法及高效鲁棒的工具.鉴于此,在微服务识别与模型驱动开发方法前期研究的基础上,研发一种模型驱动的、可用于单体遗留系统微服务化重构的集成设计平台MSA-Lab.它通过分析单体遗留系统运行日志中的方法调用序列,对其中的类和数据表进行类型识别和聚类以构造抽象微服务,同时生成包括微服务图和微服务序列图在内的系统架构设计模型.它包括用于微服务自动识别与设计模型自动生成的核心部件MSA-Generator,以及用于微服务静态结构模型与动态行为模型可视化展现、交互式建模、模型语法约束检验的核心部件MSA-Modeller.在MSA-Lab平台上,通过对4个开源项目实施有效性、鲁棒性、功能转换完备性等实验以及对3个同类型工具实施性能对比实验,结果表明:所提平台拥有很好的有效性、鲁棒性及实现面向日志的功能转换完备性,且性能更加优越.

摘要：Transition metal phosphides(TMPs) are promising battery-type electrodes for hybrid supercapacitors(HSCs) due to their high electrical conductivity and electrochemical activity. Constructing TMPs with fast kinetics and stable structure is requisite to realize high-performance HSCs but remains a challenge. Herein, we incorporate Mo(or W)into Ni Co P to form Ni-Co-Mo-P(or Ni-Co-W-P) heterostructures with a unique three-dimensional(3 D) open morphology and modified electronic structure. Electrochemical analyses and density functional theory(DFT) calculations reveal that the incorporation of Mo/W enables Ni Co P with optimized nanostructure, high conductivity, abundant reaction active sites and enhanced reaction kinetics. As a result, the designed Ni-Co-Mo-P heterostructure delivers a high areal capacity of 4.08 C cm^(-2)(703 C g^(-1)) at 2 m A cm^(-2)and3.25 C cm^(-2) at 30 m A cm^(-2) with a good cycling stability, superior to those of Ni Co P and Ni-Co-W-P counterparts. The practical feasibility of the Ni-Co-Mo-P heterostructure is further demonstrated by an energy conversion and storage system consisting of commercial solar cell and Ni-Co-Mo-P//activated carbon(AC) device, which could obtain a high energy density of 53.3 W h kg^(-1)at a power density of 800 W kg^(-1).All-solid-state Ni-Co-Mo-P//AC device further illustrates the superior flexibility and makes a strong candidate for wearable energy storage electronics.

摘要：目前变形监测系统多以单应用模式为主,即面向监测对象特点进行定制化开发,存在或无法同时支持人工监测、自动化监测两种模式,或只支持单一传感器而无法集成更多传感器等问题,适用场景受限,无法大范围推广使用。针对此问题,基于物联网、数据库及互联网技术的特点,通过划分监测项维度,基于PL/pgSQL(Procedural Language/Postgres SQL)编写对应数据处理函数,采用关键环节配置化的模式进行系统设计,实现了一套融合多类传感器,支持多应用场景、多监测项及多监测模式的通用型变形监测系统,通过测试验证了技术路线的可行性。

摘要：In this paper, the stability of a concave spherical stem bulkhead under the pumping load when still lying at the slipway is analyzed. The stability of the spherical stem bulkhead with different shell thickness and reinforcing forms is discussed. According to the results of stability analysis, the optimization design of the spherical stem bulkhead stability is performed. On the basis of considering the machining technical requirements of the bulkhead, a rational design of the spherical stem bulkhead structure is obtained. This paper has a certain value to the design of submarine's spherical stem bulkhead.

摘要：文章利用有限元计算方法模拟分析水压试验时某汽轮机高压外缸3种不同中分面法兰和螺栓布置方案对中分面密封性能的影响,验证了有限元计算分析结果与实际水压试验结果的一致性,作为汽缸中分面法兰和螺栓布置设计参考,提升汽缸水压试验一次性成功率,以及降低水压试验的生产成本及周期。

摘要：The 800℃ isothermal section in the Al-Zn-Zr system was investigated using the equilibrated alloy method and the solid/liquid diffusion couple approach by means of scanning electron microscopy equipped with energy dispersive spectroscopy, X-ray powder diffraction and electron probe microanalysis. Thirteen three-phase regions are experimentally confirmed in the ternary system. A ternary compound Zn50Al25Zr25 named as T phase exists stably in the 800℃ isothermal section. Its composition range varies widely (16.84-55.1 at.% Zn, 18.02-56.3 at.% Al and 26.0-28.53 at.% Zr), and it can be in equilibrium with all the binary compounds. The maximum solubilities of Zn in Zr3Al, Zr2Al, Zr3Al2, Zr4Al3, ZrAl, Zr2Al3, ZrAl2 and ZrAl3 are 7.5, 0.84, 0.33, 0.89, 0.91, 1.12, 0.64 and 3.8 at.%, respectively. The maximum solubilities of Al in Zn3Zr, Zn2Zr and ZnZr are 1.6, 1.3 and 13.6 at.%, respectively.

摘要：针对当前内窥镜设备获取图像清晰度较低、拍摄镜头无法调整角度导致拍摄范围较小无法满足需求、内窥镜手持部分结构不合理导致操作不方便以及易造成医务工作者手部握持疲劳、图像数据处理主机系统功能单一和数据传输有限等问题,通过对内窥镜成像系统进行结构设计和优化、采用微型工作者进行数据处理,设计了一种能够实现多角度拍摄、多数据接口输出的高效超高清内窥镜成像及控制系统。

摘要：提出了风力机风轮叶片的优化设计模型,该模型考虑了风场风速的概率分布,以风力机年能量输出最大为设计目标。为加速搜索寻优过程并保证获得全局最优解,采用ECGA算法进行搜索寻优。与传统的遗传算法相比,ECGA搜索寻优速度更快,获得的结果更准确,也可以使用更小的种群,函数求值次数也更少。利用开发的优化设计程序,设计了1.3MW失速型风力机的叶片。与已有的1.3MW失速型风力机相比,设计结果显示了明显的优越性,说明该优化设计模型的有效性和实用性。

摘要：提出了以年能量输出最大为优化目标 ,使用复合形法搜索最优点的风力机桨叶总体优化设计模型。根据南澳风电场风速分布函数 ,使用该模型设计了 6 0 0kW风力机。对比总体优化设计结果和引进的NM6 0 0kW风力机的实际数据 ,分析了设计结果的合理性 ;对比Wilson方法的设计结果 。

摘要：针对传统邮件系统的缺陷,提出了高扩展性邮件系统,使得系统能够灵活扩展并且不影响原有系统的架构和性能。阐述了系统基于LDAP的用户管理模式、体系结构和工作原理。利用QMAIL和QMAIL-LDAP实现了系统架构。组建了测试环境,实际运行数据说明系统具有很高的性能。