摘要：Potassium-ion batteries(PIBs)have garnered significant interest due to their abundant resources,wide distribution and low price,emerging as an ideal alternative to lithium-ion batteries for energy storage *** one of the key components,anode materials act as a crucial role in the specific capacity,energy density,power density and service life of PIBs,so it is highly significant to conduct a comprehensive investigation on *** materials are widely employed as the anode for PIBs because of their advantages of environmental friendliness,abundant raw materials and diverse *** to the structural differences,carbon materials are mainly distinguished as crystalline carbon represented by graphite and graphene,and soft carbon and hard carbon existing in amorphous *** types of carbon materials have special ion storage mechanisms,storage capacity and cycling ***,it is meaningful to summarize and discuss the characteristics and research progress in carbon anode materials for PIBs in recent ***,according to the development status and application prospect of graphite,graphene,soft carbon,and hard carbon,we deeply generalize the electrochemical performance and potassium storage *** we dig out the key problems faced by different carbon materials and arrange various modification design and solving strategies of novel carbon ***,we expound the importance of carbon anode materials as the anode and PIBs,explore the application potential of current and emerging carbon anode materials,and put forward some suggestions and prospects for the future development of carbon materials.

摘要：课例研修是一种能够充分发挥理论学习、专业引领、同伴互助和教学反思之意义与价值的教师专业发展研修方式,并具有研修主题或专题的实践性、研修主体的自主性、研修过程的合作性、研修成果的综合性等基本特征;其一般过程主要是从困惑或疑难开始、从理论学习中借用理性、从教学反思中启发智慧、从实际调研中明确问题、从设计方案中尝试改进、从“一课三上”中落实设计、从“课前课后研讨”中改进教学设计、从“课例撰写”中提升素养;其前提条件主要有参与主体的自觉自愿、学校制度的建设与完善、相应组织的建构与保障、必要条件的准备等。

摘要：安全两方向量优势统计问题是百万富翁问题的推广问题,用于两方在不泄漏自己保密向量信息的前提下统计出满足大于关系的分量的数目.本文在半诚实模型下利用加同态加密体制解决了安全两方向量优势统计问题,分析了该解决方案的正确性,安全性和复杂性;利用该优势统计协议设计了一个安全两方向量分量和排序协议,并且将设计的安全两方向量分量和排序协议应用于安全生成最小树图形算法中.

摘要：A near infrared spectroscopy（NIRS） approach was established for quality control of the alcohol precipitation liquid in the manufacture of Codonopsis Radix. By applying NIRS with multivariate analysis, it was possible to build variation into the calibration sample set, and the Plackett-Burman design, Box-Behnken design, and a concentrating-diluting method were used to obtain the sample set covered with sufficient fluctuation of process parameters and extended concentration information. NIR data were calibrated to predict the four quality indicators using partial least squares regression（PLSR）. In the four calibration models, the root mean squares errors of prediction（RMSEPs） were 1.22 μg/ml, 10.5 μg/ml, 1.43 μg/ml, and 0.433% for lobetyolin, total flavonoids, pigments, and total solid contents, respectively. The results indicated that multi-components quantification of the alcohol precipitation liquid of Codonopsis Radix could be achieved with an NIRS-based method, which offers a useful tool for real-time release testing（RTRT） of intermediates in the manufacture of Codonopsis Radix.

摘要：针对制冷式大面阵640×512凝视焦平面阵列探测器,设计了一套中波红外连续变焦光学系统。该系统由变焦系统和二次成像系统构成,包括7片透镜和2个反射镜组成的折叠光路。首先,根据变焦原理和专业光学设计软件给出了系统结构及其参数。然后,分析了系统的像质和冷反射效应。最后,验证了系统的性能指标。结果表明:该系统可以实现50～500mm的连续变焦,变焦过程中目标景物始终清晰可见;系统在耐奎斯特频率处的全视场光学传递函数大于0.35,全视场畸变小于2%,无冷反射现象;具有分辨率高、热灵敏度高、像质好、变焦轨迹平滑等特点,基本满足设计要求。

摘要：详述基于掌上电脑PDA结合全站仪进行线路横断面内外业一体化测绘系统的设计。介绍全站仪任意置镜横断面数据采集和数据处理的基本原理,对系统的设计思想、总体结构、基本功能进行详细的描述。

摘要：针对部分系统存在输入约束和不可测状态的最优控制问题,本文将强化学习中基于执行–评价结构的近似最优算法与反步法相结合,提出了一种最优跟踪控制策略.首先,利用神经网络构造非线性观测器估计系统的不可测状态.然后,设计一种非二次型效用函数解决系统的输入约束问题.相比现有的最优方法,本文提出的最优跟踪控制方法不仅具有反步法在处理n阶系统跟踪问题上的优势,而且保证了所有虚拟控制器均为最优,同时,该方法可以简化控制器设计过程.最后,基于李雅普诺夫稳定性理论,证明了闭环系统中的所有信号一致最终有界.通过仿真结果验证该方法的有效性.

摘要：Metasurfaces in the long wave infrared(LWIR)spectrum hold great potential for applications in ther-mal imaging,atmospheric remote sensing,and target identification,among *** this study,we designed and experimentally demonstrated a 4 mm size,all-silicon metasurface metalens with large depth of focus opera-tional across a broadband range from 9µm to 11.5µ*** experimental results confirm effective focusing and imaging capabilities of the metalens in LWIR region,thus paving the way for practical LWIR applications of met-alens technology.

摘要：分析了广域安全防御环境下对变电站自动化闭锁逻辑的应用需求,提出了包含间隔层、变电站层和广域保护层的变电站自动化多层逻辑互锁机制,并提出利用广域测量系统(WAMS)中的相量测量单元(PMU)来采集电网实时动态信息的方法,设计了广域保护层在线安全约束检查机制,介绍了该机制的具体实现技术和方法,并给出了一个应用实例。

摘要：拉曼光谱是一种无损、快速的物质成分分析和检测方法.由于拉曼信号强度微弱,使得拉曼光谱的检测应用受到极大的限制.针对增强拉曼散射信号强度、提高检测灵敏度这一问题,设计了一种用于自发拉曼散射信号增强的共焦腔样品池,开展了基于该共焦腔的空气拉曼散射信号增强研究.共焦腔的腔镜反射率为92%,这一设计在保证共焦腔通带宽度与激光器线宽匹配的同时能有效地降低共振调节难度.实验中采用0°探测构型收集拉曼信号,并由成像式拉曼光谱仪获取光谱信号.实验发现,在共振状态下,共焦腔的耦合效率达到87.5%,单向激光功率实现约11倍放大;与无共振腔相比,共焦腔对拉曼信号实现17倍放大,信噪比提高2倍.此外,空气中CO_2的3σ检测限达到200 ppm量级.结果表明,该系统对自发拉曼散射信号增强效果显著,并且有较高的检测灵敏度.