电扫描恒差比幅测向精度分析

电扫描多波束恒差比幅测向体制在现代雷达截获接收机中有着广泛应用。他是由微波开关依次快速接通各个天线，通过比较相邻天线接收通道上信号幅度的大小来实现测向的。文章首先以任两个相邻天线和全向参考天线接收及信号处理过程，详细推导了电扫描恒差比幅测向方程。然后以该方程为基础，根据该方程中各个观测量相互独立的特点，方位测量误差的均方根值可由测向方程的全微分求得，并将其作为电扫描恒差比幅测向的精度，由该精度公式可以看出，电扫描恒差比幅测向有很高的精度，并且在不同的角度上，其精度保持稳定。     

Development of an X-ray detector using surface plasmon resonance

A new X-ray detector using surface plasmon resonance (SPR) is proposed. The detector consists of a prism coated with a thin metal film and semiconductor film. Optical laser pulse induces SPR condition on the metal surface, and synchronized X-ray pulse which is absorbed into the semiconductor film can be detected by measuring the change of the resonance condition of the surface plasmon. The expected time and spatial resolution of this detector is better than that of conventional X-ray detectors by combining this SPR measurement with ultra-short laser pulse as the probe beam. Our preliminary investigation using Au and ZnSe coated prism implies this scheme works well as the detector for the ultra-short X-ray pulse.     

计算机称量管理系统

通过分析研究原料进厂计量过程中存在的问题，利用汽车衡称量显示仪表的输入／输出接口，开发研制了计算机称量管理系统，该系统使用Foxbae 2.10编程语言，主要采用模块化程序设计方法进行设计。主要对接口程序进行了说明。     

小麦精播机排种均匀性检测装置的研制

播种质量的高低直接影响到作业生产率和出芽率，而目前的装置大多结构复杂、价格昂贵。本研究设计了一种自动测试小麦精播机排种均匀性的检测装置，系统使用MCS-51系列单片机及传感器组成硬件测试系统，实现了对小麦精播机输种管中的种子的实时检测和显示，并具有结构简单、性能可靠等特点。     

A soluble model for quantum mechanical dissipation

In order to derive the equations for dissipation and noise in a quantum mechanical system it is necessary to include the equations of motion of a suitably chosen bath interacting with the system. In this way the standard treatment arrives at an approximate master equation for the density matrix of the system, at the expense of a number ofad hoc assumptions. These assumptions are here scrutinized on the basis of an exactly soluble model. The conclusion is: the bath must obey certain specifications; the interaction must be weak; and the temperature must be so high that the interaction energy is within the classical domain rather than occurring in quanta. Some additional comments concerning dissipation in quantum mechanics are relegated to an appendix.     

提高应答机测距精度的环节与测量技术探讨

本文提出了提高飞行器载应答机测距精度的方法与思路，并对一些典型误差源进行了定性的分析。     

电缆悬垂度在线测控系统

本文主要讨论了悬链式连续硫化生产线中电缆悬垂度在线测控技术，研制了在线测控系统。该系统由发射控制器，接收控制器，下牵引电机和PLC等部分组成，能够对悬链线的位置进行在线测控，同时具有报警功能，其自动调节功能，适用现场分布参数变化较大的场合。该系统方法新颖，具有实用性和普适性。     

Internet链路时延分布的推测

由于因特网越变越大，越来越复杂，但网络的监控管理又不能完全依靠路由节点监测链路的性能参数，QoS推测成为一个新的研究热点。在MFMM模型的基础上提出了一种方法，能够只根据测得的端一端的时延数据，推测单一测量路径上各链路的时延密度函数。文中给出了仿真结果，并分析了算法的有效性和进一步的研究方向。     

Effect of the fabrication method on the electrical properties of poly(acrylonitrile-co-butadiene-co-styrene)/carbon black composites

Poly(acrylonitrile-co-butadiene-co-styrene) (ABS), an engineering plastic, was combined with carbon black (CB) to increase its conductivity. The ABS/CB composites were prepared using two different methods: dissolution of ABS in Butan-2-one and manual mixing of the constituent materials. These fabrication methods led to different microstructures, which led to vastly different electrical properties. The microstructures were acquired using scanning electron microscopy (SEM) and optical microscopy, while the electrical conductivity was obtained using impedance spectroscopy. The percolation threshold of the composites fabricated using the manual mixing method was found to be much lower (0.0054 vol.% CB) than that of the composites fabricated using the dissolution method (2.7 vol.% CB).     

MAX2206～MAX2208功率检测器在CDMA中的应用

本介绍了MAX2206～MAX2208功率检测器的应用和选择方法，以及分析了其功率检测器输出特性。