供应链集成化模型与优化

本文建立了一个包括供应商、制造商、销售商 在内的集成化模型,这一模型含有线性状态方程和神经网络非线性模型,提出了库存成本、 供应成本、生产水平等在内的供应链目标函数和约束条件．对于供应链集成化模型采用模拟 退火方法进行优化,并以辽化公司为背景进行了初步条件的仿真工作．     

s-HITSc: an improved model and algorithm for topic distillation on the Web

Topic distillation on the Web, namely, finding quality information sources related to a given query topic with hyperlink analysis, has been shown to be useful in Web IR. Based on the analysis of three deficiencies of classical topic distillation algorithm HITS, this paper presents an improved model and algorithm named s-HITSc. Given a query topic, the improved algorithm can model a neighborhood graph at site granularity, compute the relevance weights of the nodes to the topic with content analysis, and apply weighted I/O operations in its iterative hyperlink analysis. Theoretical analysis and experimental results show that s-HITSc can control topic drift and identify more reasonable and meaningful authority and hub sites on a given topic.

8088/8086汇编语言中宏的编制和使用

介绍8088／8086汇编语言中宏的编制和使用方法以及宏与子程序的区别。     

基于MAX263的带通跟踪滤波设计

介绍了MAX263滤波芯片性能,分析了其软件设计方法及其工作原理,结合锁相环频率跟踪原理设计了针对转子不平衡量电信号的带通跟踪滤波器,实验证明该方法滤波效果十分明显,能够有效滤除干扰信号,且电路简单,具有很高的应用价值。     

A method for observing the three-dimensional morphologies of inclusions in steel

A method for observing the three-dimensional morphologies of inclusions by deeply eroding a steel sample with a kind of organic solution composed of bromine water,acetone,and HC1 (volume ratio,45∶45∶10...     

Operability analysis of nonlinear processes based on incremental dissipativity

Process operability can be defined as the ability of a process to reject disturbances at a specified operating point and/or to move quickly and smoothly from one operating point to another operating point using a feedback control system. Unlike linear processes, the properties of nonlinear processes (e.g., stability, minimum phase condition, etc.) are different around different equilibria. Most existing operability analysis for nonlinear systems focuses on one particular operating point of interest. This paper addresses the issues of dynamic process operability at various operating points, including the reachability of all equilibrium points or output trajectories in an operating region, regardless of initial conditions. In this work, a nonlinear analysis approach is developed based on the concept of incremental stability. Conditions for incremental stability are derived based on incremental dissipativity. The links between input and output multiplicities and incremental dissipativity are explored. The dynamic control performance achievable in terms of the speed of the response of the closed-loop system and offset minimization is studied. A method for determination of incremental dissipativity using Linear Differential Inclusion (LDI) is also presented, to facilitate the dissipativity based operability analysis.     

OPC在数据交互系统中的应用

针对装车台系统与生产系统之间的信息孤立问题,设计了一套数据交互系统。该数据交互系统利用OPC技术和C#语言进行开发,通过ADO.NET远程连接数据库,对装车台系统中的数据进行相应的读写操作,并利用OPC接口实现对生产系统中的数据进行操作。该数据交互系统自投用以来,使得原本独立的两个系统之间能够进行数据传输,实现了在控制生产系统中对装车台系统相关数据的监控,有效地解决了企业数据交互上存在的问题,对提高企业安全生产水平有重大意义。     

成核剂对耐候性聚丙烯性能的影响

比较了成核剂DICPK和苯甲酸钠对耐候性PP结晶性能和力学性能及老化性能的影响，并采用电子显微镜和偏光显微镜分析了材料的微观结构。结果表明，成核剂DICPK可明显改善耐候性PP的结晶形态，提高耐候性聚丙烯的抗冲击性能。     

The structural and electrical properties of nano-scale Sr2FeMoO6 under high pressures

Using the polymer-network gel method to control the chemical procedure, Sr₂FeMoO₆ powders with grain size of 50 nm (A) and 100 nm (B) have been synthesized, and their structural and electrical properties have been investigated. By comparing the experimental results of samples A and B with that of bulk sample C with grain size in μm obtained before, sample A shows the largest bulk modulus B ₀ and a relatively large slope of the drop in resistance as a function of pressure. The possible reasons are given and discussed.