基于DCOM的程序设计

介绍分布式对象模型DCOM编程技术在Visual Basic的实现方法和Visual Basic中为DCOM技术处理提供的工具.     

一体化集成的智能柱上开关操作机构综合故障诊断方法

配电网的开关设备大多数故障是由其操作机构故障引起的,通过在一体化集成的智能柱上开关上加装传感器,监测获取操作机构的分、合闸线圈和储能电机工作电流,结合环境温湿度等特征信息的变化,提出了一种针对操作机构的多元信息状态监测和故障诊断方法,通过对比同一操作机构的多次电流波纹变化,结合环境温湿度的变化,预测操作机构的性能变化趋势,综合诊断操作机构的性能状态,提前发现潜在的设备故障隐患,给出相对应的检修意见,有助于全面了解开关设备的各项状态指标,降低开关设备的故障率。     

Arbitrary magnetic field modulations to a semiconductor pump with two types of spin-orbit couplings

Arbitrary magnetic field modulations to the semiconductor pump with both the Rashba and Dresselhaus spin-orbit couplings (SOC) are studied. The pump is driven by double time-dependent delta potentials, which are formed in the interfaces between the semiconductor region and two normal leads. Based on the Floquet scattering approach, our calculations show that various currents can be pumped by couplings of the magnetic fields and the SOCs. Pure spin currents modulated by the arbitrary magnetic fields are discussed in detail.     

周期性边界条件下的三方演化少数者博弈

提出并研究了周期性边界条件下的三方演化少数者博弈模型.在该模型中,每个经纪人有一组概率(p1,p2,p3=1-p1-p2),做决定时或者以概率p1(p3)选择去最近相同历史下的少数方(多数方),或者以概率p2选择去最近相同历史下的中间方.数值模拟结果显示,在周期性边界条件下系统的整体效益要比在反射边界条件下的好.边界条件对三方演化少数者博弈有影响.