防空导弹作战环境的动态红外景像生成

通过分析红外图像的特点和天空背景中各景物的红外辐射规律及其相互关系,提出和完成了防空导弹作战环境的动态红外背景图像的合成及其实时模拟显示方法,并对得到的结果及其特点进行了比较分析.     

基于PSTN的远程监控系统的设计与实现

利用TDK公司生产的单片Modem SS73K222AL和89C51实现了一种低成本的远程监控系统，系统通过公用电话网实现远程监控终端与控制中心计算机的数据传输。可用于各种需要远程数据传输的领域，具有很好的市场应用前景。     

频域吸收边界条件的构造理论

在频域中推导了适用于差分类数值方法的吸收边界条件的构造方法，并通过选取不同参数导出了几种现有的吸收边界条件。在计算了一般形式的吸收边界条件的反射系数之后，提出了一种简单实用的自适应吸收边界条件。     

星间激光通信技术进展与趋势

较详细地评述了目前国外卫星间光通信技术研究的现状．根据关键单元技术的进展情况，总结了未来星间光通信系统的发展趋势。     

HPL-2000CO2激光器工作气体的试验研究

针对横流HPL-2000 CO2激光器工作气体进行了试验研究，用LSQD35型冷水机组与HPL-2000激光器组成系统，能够在无氮工作气体的条件下稳定运行，使激光器运行成本大为降低。     

PC作为Profibus-DP单主站的实现

主要介绍Profibus现场总线的基本特性和通信协议，讨论了以PC作为Profibus—DP单主站实现的可行性，并给出了C语言实现的程序。     

Dramatic Tuning of the Topological Hall Effect in AxRhO2 (A = K,Rb, and Cs) Crystals by Electron Concentration or Cation

Topological Hall effect, being an unconventional anomalous Hall effect, is originated from the real-space Berry curvature caused by the nontrivial topological spin textures in materials. Manipulations of nontrivial magnetic structure and related topological Hall effect are very important for the study of the chiral magnet. Herein, it is experimentally observed that the significant topological Hall conductivity σ_xy in antiferromagnetic K_0.5RhO₂ can reach 3.5% of ν = 1 quantum conductivity below 20 K. Furthermore, by adjusting the concentration of K-cation different from 0.5 in K_xRhO₂ or substituting the K cations by Rb or Cs to form Rb_0.5RhO₂ or Cs_0.5RhO₂, it is observed that the topological Hall effect is much weakened or even disappeared. This evolution, verified by the theoretical calculations, is attributed to the unstable ground state of the non-coplanar spin structure in K_xRhO₂ (x = 0.4 and 0.6) and Cs_0.5RhO₂. The significantly tunable topological Hall effect in A_xRhO₂ makes it prospective on logical/sensor devices of spintronics.     

Direct Observation of Oxygen Ion Dynamics in a WO3-x based Second-Order Memristor with Dendritic Integration Functions

Direct observation of oxygen dynamics in an oxide-based second-order memristor can provide the valid evidence to clarify the memristive mechanism, however, which is still limited for now. In this study, the migration and diffusion of oxygen ions in the region of Pt/WO_3-x Schottky interface are observed in the WO_3-x second-order memristor by using the technique of in situ transmission electron microscopy (TEM) and the electron energy loss spectroscopy. Interestingly, the coexistence of memristive and memcapacitive switching can be implemented in this memristor. Combined with the analysis of depth-profile X-ray photoelectron spectroscopy (XPS), an interface-barrier-modulation second-order memristive model is proposed based on the above results. Notably, temporally correlative oxygen dynamics in the memristor offers the platform to integrate signals from multiple inputs, enabling the realization of the dendritic functions of synchronous and asynchronous integration for the application of logic operations with fault-tolerance capability and associative learning. These findings provide the experimental evidence to in-depth understanding of oxygen dynamics and switching mechanism in second-order memristor, which can support the optimization of memristive performance and the achievement of biorealistic synaptic functions.     

无人机数据链暗室拉距测试方法

无人机数据链的有效通信距离是无人机的一项重要指标,如何准确高效地对有效通信距离进行测试表征,对于无人机安全运行和评估系统正常工作的可靠度具有重要意义。在分析无人机数据链通信链路中传输损耗构成的基础上,从测试环境可控性、测试效率、可重复性、贴近业务应用等方面比较了当前主要测试方法之间的优劣,设计了室内拉距测试方法并完成相应测试,最后根据吞吐量指标对有效通信距离与实际业务应用间的关系进行了讨论。所提出的无人机数据链有效通信距离测试方法简单易行,测试结果准确,具有较强的实用价值。     

应用型独立学院的自动控制原理课程混合式教学改革探讨

本文介绍了混合教学模式在应用型独立学院教学中的特点,以自动控制原理课程为示例,针对传统课堂教学现状中存在的问题,从教学形式,教学内容,教学设计,评价体系等方面提出了教学改革的思路。基于独立学院培养应用型人才的目标,开展混合式教学,其主要的作用是在自动控制原理课程实践中引导学生主动解决问题,互动探讨问题,深刻认识问题,改进教学效果的同时提升师生能力。