线性模糊微分系统的同伦摄动法

利用模糊结构元方法,将线性模糊微分系统转换成同解的线性确定微分系统。采用同伦摄动法给出线性确定微分系统的近似解,进而给出原模糊微分系统的近似解。给出了具体算例。     

感应加热高强度包装钢带生产线及工艺技术特点

介绍了唐山钢铁集团有限公司建的国内第一条感应加热高强度包装钢带生产线主要设备及技术工艺特点。     

进口空气相对湿度对直接蒸发冷却式空调机性能的影响

本文就进口空气的相对湿度对直接蒸发冷却式空调机性能的影响进行了分析,得出了在保证一定冷却效果的条件下冷却效率、填料厚度和出口空气相对湿度与进口空气相对湿度的关系曲线.     

民间习俗与天然包装材料

天然包装材料,是人类对造物的实用功能性的基本追求.不同社会、不同环境、给人与人之间、民族与民族之间带来了明显的差异.它包括政治、经济、文化等因素的综合作用和制约,这种造物活动就使人们陷入一种复杂的境地并深受影响,从而使造物活动的目的和内涵变得更加复杂化.     

退休人员信息管理系统的开发与研究

介绍了以SQLServer2000为数据库工具,利用VisualC++6 0通过ODBC技术开发退休人员信息管理系统的主要技术方法和解决方案。     

深度图像的平滑

由于受到各种干扰，结构光方法获取的深度图像重建结果中包含大量的毛刺，本文将平面图像平滑的方法拓展到深度图像领域，通过分析噪声模型，我们利用中值滤波器和高斯滤波器对深度图像进行三维平滑。结合去噪电路，取得了满意的重建效果。     

Design and Calibration of an Opto-mechanical Appliance for 3D Non-contact Orthopedic Measurements Part II: Calibration Methodology and Experimental Results

A multistep iterative calibration methodology for the opto-mechanical system introduced in Part I is proposed. The methodology makes use of a monoview coplanar set of control points, whose number has been determined on the basis of both geometrical considerations and the results of a statistical analysis aiming at assessing the procedure stability in the case of noisy image data. The calibration procedure is carried out comparing the theoretical and observed images of the calibration pattern. Both synthetic and real data have been employed to test the calibration procedure, which proved to be accurate and efficient. The experimental results achieved by the calibrated system are satisfactory in terms of measurement precision.     

钢材捆扎机械手的理论分析与设计

钢材捆扎的原理设计、模型分析与理论计算，运用P ro/Engineering软件设计了一种捆扎机械手．该机械手以Φ6.5热扎盘条为捆丝材料，由液 压马达驱动，在可编程控制器控制下进行自动捆扎，捆丝拧结720°，能满足多种钢材包装 要求，已成功应用到精整包装生产中．     

PLC 控制的榨菜自动包装机控制系统的可靠性研究及其通讯监测

本文着重研究了榨菜自动包装机控制系统的可靠性，并对其运行状态进行通讯监测     

Optimal packing of transformer coil via dynamic programming

One of the transformer major design elements is its core design. The good performance of the transformer requires its coil core to be laminated and composed of different - widths stepped layers of specific steel packed together. For optimum design, the cross sectional shape of the core must be as circular as possible. So, an optimal packing can be attained by maximizing the steel core coverage. The number of different widths of steel plates n is selected to compose the packed core for a coil of diameter d. Then, an optimum sequence of decisions, for the n widths as well as the number of thin plates of each, is required. Dynamic programming (dp) is concerned with this optimum sequential decisions. An adequate forward recursive equation is formulated , because there isn't a standard dp model for all sequential decision making problems. To implement the recursive computations, a FORTRAN program is developed. Assuming that d is given the values 150, 200, 250, 300, 400 and 500 mm. while giving n the values from 2 to 15, the program is run at different combinations of n and d. It is found that maximum core coverage is sensitive to changing of n but it is slightly affected by changing of d.