基于产品满意度的中小服装企业排料系统评价

在分析现有服装裁片排料系统主要问题的基础上,通过引入产品满意度的概念,建立了中小服装企业裁片排料系统的满意度评价模型,并对不同排料模式进行了分析和评价,为适合中小服装企业的裁片排料系统开发提供依据。     

动态设备关联特性文件颜色模式转换精度评价

为评估和比较最新的基于动态设备关联特性文件的“动态黑成分最大化” (Dynamic K)与基于设备关联特性文件的“最大灰成分替代”(Max GCR)、基于ICC设备特性文件的“参考颜色空间(PCS)转换”在颜色模式转换中的效果,通过实验模拟的方法来测试这3种转换方法的颜色模式转换精度、印刷墨量以及印刷的稳定性.结果表明基于动态设备关联特性文件的“动态黑成分最大化”在颜色模式转换方面,不仅能与其他两种方法达到相同的转换精度,节省更多彩色油墨,且提高了印刷稳定性,是值得推广的在两种CMYK模式设备间进行颜色模式转换的好方法.     

PCS7系统在粘胶短纤维生产中的应用

介绍了PCS7系统、PROFIBUS-DP总线、SIMATIC网络系统等产品首次在粘胶短纤维生产线中应用,STEP7的SCL编程语言在粘胶短纤维生产控制中的应用,并从系统软硬件设计方面,叙述了对关健功能的成功实现.     

PCS7在新型变压吸附提纯CO装置中的应用

着重介绍PCS7在新型变压吸附提纯CO装置中的硬、软件配置,并提出了一种新型的控制方案组态思路.     

基于ICE2PCS05高功率因数校正电路的设计

以单相Boost有源功率因数校正电路为研究对象,分析有源功率因数校正技术的基本原理及其分类,并对每一类型电路的拓扑结构、工作特点及工作方式进行比较。逆变焊机输入整流电路中的滤波电容是导致输入电流波形畸变的原因所在,产生高次谐波,并降低电源的功率因数。基于新型功率因数校正芯片ICE2PCS05,设计一款功率为300 W,输出为400 V的高功率因数校正电路,详细分析该电路的工作原理、升压电感、电容、功率开关管、二极管、开关频率和ICE2PCS05外围电路等部分参数的设计方式,并给出其测试结果。实验结果表明,该设计电路合理可行、输入电流畸变小,输出电压恒定,可获得高功率因数。     

CIMS在特钢厂的应用

论文介绍了CIMS系统提出的背景、基本概念和作用,并结合某特钢厂项目中的实际应用,对CIMS系统在项目实施中的系统功能、体系结构与功能模块组成进行了说明,给出了具体实例.     

基于多代理的制造执行系统的研究

制造执行系统作为连接计划管理系统（ERP/MRPⅡ）和生产控制系统的桥梁与纽带，对车间层生产调度的优化，生产过程的改进等方面起了重要的作用，文章对制造执行系统的制造模式进行研究的基础上，提出了基于多Agent的制造执行系统的应用框架结构，并对基于多Agent的制造执行系统的调度系统进行了研究，最后给出了制造执行系统的调度算法结构。     

Facile joining of SiC ceramics with screen-printed polycarbosilane without pressure

Joining of SiC ceramics was successfully achieved at a relatively low temperature of 1500 °C without any pressure using pure polycarbosilane (PCS) as the joining material, which was distributed homogenously on the surface of SiC monolith through a screen printing method. The XRD pattern shows that the pyrolysis product of PCS is single-phase SiC. The interlayer thickness of the SiC joint is approximately 2 μm. This ultra-thin interlayer with lower possibility of the existence of defects contributes to the average shear strength of 105.8 ± 10.4 MPa, higher than that of other works using other preceramic polymers to the best of our knowledge. Due to the simplicity, low cost and high joining strength, the screen printing method using PCS as the joining material has good practicality in SiC ceramics joining.     

高压聚乙烯装置控制系统优化方案

文中阐述了大庆石化公司塑料厂高压聚乙烯Ⅰ装置的控制系统优化方案。针对该装置工艺过程复杂、联锁多、工艺条件苛刻、操作难度大等特点,结合SIEMENSPCS系统的控制功能和技术特点,提出了控制系统的优化方案。     

Cell Identification Codes for Tracking Mobile Users

The minimization of the wireless cost of tracking mobile users is a crucial issue in wireless networks. Some of the previous strategies addressing this issue leave an open gap, by requiring the use of information that is not generally available to the user (for example, the distance traveled by the user). For this reason, both the implementation of some of these strategies and the performance comparison to existing strategies is not clear. In this work we propose to close this gap by the use of Cell Identification Codes (CIC) for tracking mobile users. Each cell periodically broadcasts a short message which identifies the cell and its orientation relatively to other cells in the network. This information is used by the users to efficiently update their location. We propose several cell identification encoding schemes, which are used to implement different tracking strategies, and analyze the amount of information required by each tracking strategy. One of our major results is that there is no need to transmit a code which is unique for each cell. For example, a 3 bits CIC is sufficient to implement a distance-based tracking strategy in a two-dimensional system. In addition, we propose a combination of timer and movement tracking strategy, based on either a one-bit or a two-bit CIC, depending on system topology and user mobility. An important property of our framework is that the overall performance cost, and hence its comparison to existing methods, is evaluated for each tracking strategy. The CIC-based strategies are shown to outperform the geographic-based method currently used in existing networks, and the timer-based method, over a wide range of parameters. Moreover, this superiority increases as the number of users per cell increases.