摘要：The productivity of an organization is very much affected by non-value adding activity like logistics, which moves the resources from suppliers to factory, raw materials/semi-finished items within the factory and finished goods from factory to customers via a designated distribution channel called as forward logistics. In some cases, parts of the products such as automobiles, computers, cameras, mobile phones, washing machines, refrigerators, garments, footwear and empty glass bottles of beverages, etc. will be brought back to the factories as a product recovery strategy through reverse logistics network which is integrated in a sustainable closed loop supply chain network. So, it is highly essential to optimize the movement of the items in the reverse logistics network. This paper gives a comprehensive review of literature of the design of networks for the reverse logistics as well as for the reverse logistics coupled with forward logistics. The contributions of the researchers are classified into nine categories based on the methods used to design the logistics network.

摘要：The DOE methodology is an effective tool for upgrading the level of measurement and assessment. In any design, planning or control problem the designer is faced with many alternatives. He/she is challenged to develop design approaches that can meet both quality and cost criteria. The way experiments are designed greatly affects the effective use of the experimental resources and the easiness with which the measured results can be analyzed. This paper does not present new evidence based on designed experiments. Its objective is solely to show how useful application of multifactor experiments is in a variety of circumstances and decision making scenarios. The paper reviews three published examples where this method was used in different contexts: quality control, flexible manufacturing systems (FMS) and logistics systems. The physical experiment has been carried out to improve the quality of a special type of batteries. The simulation experiment has been carried out to investigate the impact of several flexibility factors in a flexible manufacturing system. The numerical value of a complex analytical expression representing a customer oriented logistics performance measure has been calculated for different values of its parameters, i.e. the given numerical values of the investigated factors. It enabled a methodical examination of all factor effects and especially their interactions, thus shedding light on complex aspects of the logistics decision problem. In these examples, cases from different contexts were presented, enabling to view design of experiments as a powerful ingredient for improving decision making in a variety of circumstances.

摘要：为提高脉冲编码雷达测距分辨率和脉压信噪比等性能指标,介绍一种基于logistics和tent混沌复合映射算法的150MHz高速混沌(Chaos)码发生器。该码发生器采用混沌复合映射算法,经定点化后用VHDL语言在FPGA内实现,最后通过LVDS(高速差分标准)输出。实验结果表明,通过该种方法生成的Chaos序列具有良好的自相关、互相关特性,在保证动态时间不超过码宽度20%的前提下速率高达150 MHz,用于脉冲编码雷达中可以获得距离分辨率为1 m的性能指标。

摘要：为提高隐私数据加密存储的安全性,提出基于混沌序列的医院财务报表隐私数据自动加密方法。构建隐私数据加密的算式编码模型,结合混沌序列的随机性进行特征编码,提取线性空间组合特征量,通过密钥控制方法实施模糊密钥设计,结合特征聚类和编码融合方法,实行数据的自动构建,采用logistics混沌序列实现数据加密过程中的寻优控制和收敛训练,完成报表隐私数据的自动加密和安全存储。实验结果表明,本方法加密隐私数据的安全性较高,抗干扰能力较强。