摘要：The monitoring and warning of urban rail transit is the core of operation management, and the breadth and depth of the monitoring range directly affect the quality of urban rail transit operation. For the current domestic monitoring system, most of the critical equipments and technologies are introduced from abroad;it is diseconomy, and also causes hidden danger. Realizing the localization of monitoring and early warning system is imperative. Based on the analysis of the present situation of urban rail transit operation safety at home and abroad, the paper proposes to use integrated technology to design basic framework of monitoring and warning system of urban rail train, and puts forward the critical technologies to realize the system. Compared with the existing monitoring system, the integrated monitoring system has the characteristics of wide monitoring range, clear division of labor, centralized management, coordination and integration operation and intelligent management, and embodies the concept of people-oriented. It has scientific significance for future construction of domestic Integrated Monitoring and Early Warning System (IMEWS) of urban rail transit.

摘要：针对现有堆栈处理器主频较低的问题,设计一种16位的四级流水线堆栈处理器ZP16。采用冯诺伊曼结构与J1指令集,具有数据堆栈和返回堆栈两个独立堆栈。四级流水线包括取指、译码、执行和回写。通过合理的结构设计与流水线冲刷技术解决ZP16中流水线冒险问题。实验结果表明,在Xilinx XC7A100T FPGA目标芯片上,ZP16的运行主频稳定在230 MHz。与J1堆栈处理器相比,ZP16流水线加速比为1.3,资源占用率基本相当,功耗增加8%,主频提升130%。与其它同类型堆栈处理器在不同的目标芯片上进行比较,ZP16主频有较为明显的提升。

摘要：富锂层状氧化物是构筑高能量密度锂离子电池富有潜力的正极材料.然而,由于不可逆的结构变化和缓慢的界面动力学,传统的多晶富锂层状氧化物正极材料循环和倍率性能较差.本文提出了一种聚乙烯基吡咯烷酮(PVP-K30)辅助共沉淀制备单晶Li_(1.2)Mn_(0.54)Ni_(0.13)Co_(0.13)O_(2)纳米片的方法.这种方法操作简单、成本低且便于放大生产.所制备的单晶纳米片内部晶格连续且无晶界,缩短了Li+的嵌入/脱嵌路径,加快了电极反应动力学过程.单晶结构还能抑制层状相向尖晶石相的不可逆相变和颗粒内部裂纹的形成,起到稳定层状结构的作用.电化学测试结果表明,所制备的Li_(1.2)Mn_(0.54)Ni_(0.13)Co_(0.13)O_(2)单晶纳米片在0.1 C倍率下的可逆容量为254.5 mA h g^(-1),在5 C高倍率下循环1000次后容量保持率为71.9%.这种简单的制备纳米片单晶材料的方法为提高富锂层状氧化物正极材料的循环性能和倍率性能提供了新的思路.

摘要：In this paper, we extend a novel unconstrained multiobjective optimization algorithm, so-called multiobjective extremal optimization （MOEO）, to solve the constrained multiobjective optimization problems （MOPs）. The proposed approach is validated by three constrained benchmark problems and successfully applied to handling three multiobjective engineering design problems reported in literature. Simulation results indicate that the proposed approach is highly competitive with three state-of-the-art multiobjective evolutionary algorithms, i.e., NSGA-11, SPEA2 and PAES. Thus MOEO can be considered a good alternative to solve constrained multiobjective optimization problems.

摘要：为了探明外界因子对叉角厉蝽Eocanthecona furcellata捕食效率的影响,提高田间应用叉角厉蝽对斜纹夜蛾Spodoptera litura种群的防控效果,本试验采用二次通用旋转组合设计方法,研究了3个试验因子(斜纹夜蛾幼虫密度、叉角厉蝽若虫释放量、芋头植株数量)对叉角厉蝽捕食效率的影响,基于不同处理下叉角厉蝽对斜纹夜蛾的捕食率统计,建立捕食效率(Y)与斜纹夜蛾幼虫密度(X_(1))、叉角厉蝽释放量(X_(2))和芋头植株数量(X_(3))3个试验因子的关系的回归模型:Y=71.8751593-4.74158206X_(1)+12.83546961X_(2)+1.249219611X_(3)+0.1022956216X_(1)^(2)-0.518515769X_(2)^(2)-1.076015769X_(3)^(2)-0.1667500000X_(1)X_(2)-0.0832500000X_(1)X_(3)+0.416250000X_(2)X_(3)。经单因子效应分析,3个试验因子对叉角厉蝽捕食率影响程度从大到小依次为:斜纹夜蛾幼虫密度(X_(1))、叉角厉蝽释放量(X_(2))、芋头植株数量(X_(3))。经对建立的二次多项式回归模型取最高指标时各个因素拟合分析以及对3个试验因子单效应、互作效应作图,得出使叉角厉蝽捕食率达到最大值的3个试验因子配比为7∶5∶1,即当斜纹夜蛾幼虫数量为7头、叉角厉蝽为5头以及芋头植株为1株时,叉角厉蝽若虫捕食率达到最大,为90.83%。

摘要：为了提高P277肽抗1型糖尿病的作用,把P277肽融合在卡介苗热休克蛋白65的C端,构建了pET28a- HSP65-P277高效表达载体,在大肠杆菌中高效可溶性表达。利用硫酸铵分级沉淀、阴离子交换柱层析分离纯化了融合蛋白HSP65-P277。使用HSP65-P277在没有任何佐剂存在的情况下免疫非肥胖性糖尿病(NOD)小鼠,通过三次腹腔注射,每月收集被免疫动物的血清,血糖浓度用自动生化分析仪测定。结果显示HSP65-P277免疫组小鼠血糖平均值及糖尿病的累积发病率和其余组相比均有显著差异(P<0.01),融合蛋白HSP65-P277抗NOD小鼠糖尿病的作用显著高于单独的P277和HSP65。为进一步开发能用于临床的1型糖尿病疫苗提供了良好的设计思路,HSP65-P277极有可能进一步发展成为新的抗Ⅰ型糖尿病的疫苗。

摘要：为落实《化妆品监督管理条例》要求,提高化妆品原料管理和安全性评价水平,国家药品监督管理局结合配套法规文件制修订和信息化建设工作,建立起化妆品原料安全信息报送制度。围绕此项工作,对旧法规背景下的化妆品原料管理概况和有关问题进行分析,对新法规体系下的化妆品原料管理思路和有关工作情况进行介绍,对化妆品原料安全信息报送的设计初衷和制度安排进行了阐述,并结合实际运行情况,就原料组成拆分原则、组分典型值/目标值和范围值、原料安全信息变更、原料安全信息文件签章等行业普遍关注的重点问题展开讨论,以期对行业提供技术参考。

摘要：针对弹齿链耙式残膜回收机存在脱膜不彻底、可靠性低等问题,设计一种固定刮板式脱膜装置,并对其关键部件进行设计与分析。为验证脱膜装置作业性能,以机具行驶速度(A)、弹齿长度(B)、弹齿与脱膜板夹角(C)为试验因素,以脱膜率为试验指标开展L_9(3~4)正交试验。结果表明,弹齿链耙式残膜回收机的脱膜率为92.5%~95.7%;极差分析表明,各因素影响大小为A>C>B,脱膜率最优试验条件组合为A_(2)B_(1)C_(2),即机具行驶速度为8 km/h、弹齿长度为160 cm、弹齿与脱膜板夹角为50°。对最优组合(A_(2)B_(1)C_(2))做验证试验(5次),平均脱膜率为95.16%,满足弹齿链耙式残膜回收机作业要求。

摘要：人工智能作为现代科技介入艺术生产的典范形态,其艺术生产既依循着艺术与技术相关联的一般体例,又呈现出科技治下艺术发展的现代色彩。人工智能有别于传统工具的模仿路径,系统性集成式的实践策略以及集施控与受控于一体的运营模式将这一智能形态艺术生产的导向优势凸显出来。而人类艺术生产的情性特征、人脑未知的智能形态、人类艺术生产的审美能动意识以及奠定艺术本体属性的规则设计成为人工智能超越人类介入艺术生产的现实阈限,它在一定时限固守人类艺术价值的同时,对当下艺术场域过度张扬的形式与理性诉求以及“数字人文”的发展路向提出了深刻思考。

摘要：In this paper,the design of a GNSS-R data acquisition system is described,including the antenna,RF(radio frequency)front-end and FPGA(field programmable gate array)based logic circuit for data storage *** RF front-ends are connected with the RHCP(right-hand circular polarization)and LHCP(left-hand circular polarization)antenna to collect the direct and reflected signal *** the specifications and the circuit connections are given in *** are performed for statics at the seashore and dynamic scenario in the sea using *** results of the data analysis show that the proposed data acquisition system is suitable for GNSS-R primitive data collection.