论中西核心价值观与英语专业教学

受中西核心价值观的双重影响,以英语为专业学习对象的大学生在如何树立正确的价值观方面陷入了困境。高等学校英语专业教学过程中对中西核心价值观融合问题的重视不足。其中存在的问题、导致这些问题的原因以及解决这些问题的策略和方法都亟需我们进行深入的探讨和研究。     

企业并购过程中的产权制度约束及其对策

企业并购作为存量资源重组的重要形式，其效应已在经济体制改革过程中逐渐显现出来，但是，一个严重缺陷－－产权制度约束，正在成为我国企业并购市场化进程的主要障碍。作者针对目前企业并购的产权制度问题，提出适应炮国企业并购的制度安排和政策建议。     

静电电荷量传感器标定技术研究

静电电荷量传感器在精密机械、航空发动机的状态监测、故障预测以及健康管理方面有着广泛应用。介绍了静电电荷量传感器的标定技术，基于油滴荷电的原理，结合直流高压源、支撑固定装置、电荷量测量装置研制了静电电荷量传感器标定系统。通过油滴实验，获得了油滴荷电量与施加电压、油滴大小、温湿度之间的关系，分析了影响标定装置的因素。     

Compact antennas for UWB applications

A report on an investigation of spherical, disc, and half-disc antennas in the frequency and time domains with the objective of developing small planar versions of the antennas. These antennas have an omni-directional impulse response in azimuth and pulse duration of 0.5-0.65 nanoseconds. In addition, the measured data show a reasonable peak received signal in a pulse communication link using two identical antennas.     

俯仰三角翼的流态及结构

本文对俯仰三角翼的流动特性进行了实验研究，给出了俯三角翼的截面流态特点，对三角翼俯仰 运动的流动机理进行了分析。     

Evolution of salt finger convection with steady wind shear

In oceanographics situations where salt fingers may be an important mechanism for the transport of heat and salt in the vertical direction, velocity shears may also be present. Salt finger convection is analogous to Bénard convection in that the kinetic energy of the motions is obtained from the potential energy stored in the unstable distribution of a stratifying component. On the basis of the thermal analogy it is of interest to discover whether salt fingers are converted into two-dimensional sheets by wind shear, and how the vertical fluxes of heat and salt are changed by wind shear. Salt finger convection under the effect of steady wind shear is theoretically examined in this paper. The evolution of instability developing in the presence of a vertical density gradient disturbance and the horizontal Couette flow is considered near the onset of salt fingers under a moderate rate of shear. We use velocity as the basic variable and solve the pressure Poisson equation in terms of the associated Green function. Growth competition between the longitudinal rolls (LR) and the transverse rolls (TR), whose axes are, respectively, in the direction parallel to and perpendicular to the Couette flow, is investigated by the weakly nonlinear analysis of coupled-mode equations. The results show that the TR mode is stable under a small wind shear and the LR mode is stable for a higher wind shear.     

Grasping Strategy in Space Robot Capturing Floating Target

When the space robot captures a floating target, contact impact occurs inevitably and frequently between the manipulator hand and the target, which seriously impacts the position and attitude of the robot and grasping security. “Dynamic grasping area” is introduced to describe the collision process of manipulator grasping target, and grasping area control equation is established. By analyzing the impact of grasping control parameters, base and target mass on the grasping process and combining the life experience, it is found that if the product of speed control parameter and dB adjustment parameter is close to but smaller than the minimum grasping speed, collision impact in the grasping process could be reduced greatly, and then an ideal grasping strategy is proposed. Simulation results indicate that during the same period, the strategy grasping is superior to the accelerating grasping, in that the amplitude of impact force is reduced to 20%, and the attitude control torque is reduced to 15%, and the impact on the robot is eliminated significantly. The results would have important academic value and engineering significance.     

低速增压风洞模型支撑系统中的角度机构控制

介绍了在低速增压风洞模型支撑系统中以单片机为核心构建的角度机构控制系统.该控制系统利用单片机接口电路实现了对伺服电机的控制及与上位机之间通信、数据传榆,解决了模型支撑系统中由于机械回差带来的精度问题以及角度机构支杆非线性运动带来的模型控制问题,达到了风洞试验要求的控制精度.     

复杂可修系统效能中可信度矩阵的构造方法

复杂可修系统可信度建模对保证效能的定量分析至关重要.本文在考虑不同维修状况的基础上,着重对不同任务剖面内相应任务阶段中武器装备可信度进行了深入的定量分析和综合,进而构造出武器装备的可信度矩阵,用于武器装备的效能分析;文中以某地面车辆为例,进一步论证了武器装备可信度矩阵的工程含义,旨在为合理确定一大类武器装备的效能和可信度指标提供理论依据.     

SQL Server数据复制在自来水数据库系统中的实现

介绍了Microson SQL Server数据复制的概念、工作原理和拓扑结构,并结合自来水公司的业务特点和应用需求,提出了适合企业业务发展的分布式系统解决方案.