基于遗传算法的人工订单拣选路径优化研究

以人工订单系统为对象,考虑ABC存储策略下,在客户随机到达的订单中,当物品的类别和数目随机时,运用基本遗传算法来解决双区型仓库布局的拣选路径优化问题,建立了人工订单拣选系统的路径优化模型,采用遗传算法对建立的模型进行求解,得出了优化的拣选距离和拣选路径,缩短了拣选的时间和作业时间.     

基于遗传算法的人工订单拣选路径优化研究

以人工订单系统为对象,考虑ABC存储策略下,在客户随机到达的订单中,当物品的类别和数目随机时,运用基本遗传算法来解决双区型仓库布局的拣选路径优化问题,建立了人工订单拣选系统的路径优化模型,采用遗传算法对建立的模型进行求解,得出了优化的拣选距离和拣选路径,缩短了拣选的时间和作业时间。     

货架存储区叉车拣选优化设计

本文从物流中心储位合理布局、叉车拣选路径优化两个角度,建立多目标优化模型,对物流中心拣选系统进行优化设计。     

单区型物流配送中心订单分批与路径优化研究

在物流配送中心中,对于货物进行拣选一直以来都是物流配送作业中的核心环节,对货物拣选的作业量高达60%,且货物拣选作业成本占总作业成本的50%~75%,因此拣选作业是制约配送效率提高的关键环节。文章以单区型的物流配送中心订单拣选作业为研究对象,着重研究货物的拣选路径。通过采用基于订单相似系数的聚类算法对订单进行分批拣选和基于禁忌搜索算法对订单拣选路径进行计算,并将它们的结果与订单不分批结果进行比较,从而得到禁忌搜索算法的优化高于聚类算法,拣选路径的优化提高了64%,同时这两种方法跟不分批订单拣选路径相对比,都能够有效提高拣选货物的效率,分别提高了69%和89%,减少人力劳动,在一定程度上减少了物流作业成本。     

基子图论的自动化立体仓库堆垛机拣选路径优化

以拣选路径作为研究对象,结合目前国内自动化立体仓库的规模现状．建立了相应的仓库简化模型与拣选路径模型,并对模型进行相关的说明。应用图论的有关算法,提出了针对现有仓库的堆垛机拣选路径的优化方法,最后通过算例证明该方法的有效性。     

电商仓库拣选作业优化研究

仓库作为电商物流体系中的重要部分,在其物流体系中发挥着关键作用,而拣选作业作为电商仓库中的一项重要环节,很大程度上影响着订单的出库效率和物流时效。如何对订单分批方式进行优化,如何改进拣选路径策略,加快订单的拣选速度,是本文探究的主要问题。     

器材拣选决策的改进节约算法

合理优化器材的拣选路径是提高自动化立体仓库作业效率的一种有效方法。通过分析自动化立体器材仓库的拣选特点，建立了比较符合实际情况的目标优化模型。在用传统节约算法对该模型进行求解的基础上。分析了传统节约算法的不足，并进行了改进，使得拣选次数更少、拣选距离更短。     

货箱到人模式下的AMR拣选路径规划

针对货箱到人拣选模式下AMR的拣选路径规划问题,构建以总作业时间最小化为目标的AMR拣选作业优化模型,并采用粒子群算法对模型进行求解。为解决标准粒子群算法存在易早熟收敛和陷入局部最优解等问题,设置二阶振荡环节和随机惯性权重,提出一种改进的粒子群算法。在实验分析中,将文章方法应用于某配送中心AMR库系统,并将改进的粒子群算法与标准粒子群算法进行比较。实例实证表明改进的粒子群算法具有更高的迭代效率和求解精度,相较于标准粒子群算法节约了15.6%的拣选时间,能有效降低货箱到人模式下AMR拣选作业耗时。     

不规则立体仓库移动式拣选系统设计

提出了一套不规则立体仓库移动式拣选系统解决方案,能够和企业的ERP系统很好对接,为拣选作业求解最优的拣选路径,并把该最优路径显示在拣选车的车载终端上以引导拣选作业.该系统适用于订货商晶品种多、批量小的"拆零"需求较多的行业.     

“货到人”订单分批拣选作业优化研究

由于传统的“人到货”订单拣选方式存在效率低、成本高等问题,无法满足仓储物流高效快捷的订单拣选作业模式。因此,“货到人”订单拣选系统得到了迅速发展。订单分批作为优化订单拣选作业的方法之一,如何实现合理有效的订单分批,提高订单拣选系统整体运作效率是研究的重点。以最小化货架搬运总次数为目标建立订单分批数学模型,采用订单相似度和萤火虫算法的联合优化方法实现订单分批。通过在Matlab软件上进行多组实验,验证了所提出模型和优化方法的有效性,与按单拣选所需货架搬运次数相比,订单拣选作业优化效果显著。     

Green logistics in food distribution – a case study

Environmental impacts, such as Green House gas emissions, have been introduced to supply chain management as an additional parameter to traditional key performance indicators such as cost, lead-time and on-time delivery. This paper analyses a case example from the food industry on how CO₂ emissions are structured in a value chain. The focus of the analysis covers food factory order-picking operations, transportation, warehousing and distribution aspects. The paper aims to demonstrate greening and CO₂ saving potential areas of development for thermo-controlled food logistics. The results show the energy-saving potential of several supply chain processes giving examples of distribution logistic online-temperature controlling possibilities. Greening decisions in supply chain design in the food industry are considered.     

论会计规则及会计规则意识

本文着重从现实生活中存在着大量的违规现象来讨论会计规则和树立会计规则意识这一重要的理论和现实问题。本文认为我们现在所面临的不仅仅是有没有会计规则或者懂不懂会计规则的问题,更重要的是包括会计人员在内的行动者在多大程度上愿意并且能够自觉地遵守会计规则的问题。因此了解和掌握会计规则、树立会计规则意识,对于遏制会计违规的现象,培养会计人员遵守会计规则的能力和习惯,提高会计人员的素质具有重要的现实意义。     

Static vs. dynamic priority rules for check processing in multiple dispatch-multiple branch banking

This paper presents a study comparing the use of four static and two dynamic priority rules for sequencing bundled checks in the check clearing operations in a bank's back office. The six priority rules are tested in a controlled computer simulation experiment, where bank factors of check bundle size, check bundle value, transit deadlines (dispatches), and destination proportions are systematically varied over prescribed levels. The results indicate that priority rule performance, measured by reduced float, is significantly affected by bank factors. The test results indicate that the two dynamic priority rules performed statistically better than three of the four static rules tested.The study reported here should prove useful to bank operation managers. The sequencing rules investigated here influence the level of float for a bank faced with multiple dispatches during the day. The test environments duplicated a variety of operating conditions that can be present in commercial banks. Therefore, the robustness of the tested static and dynamic rules were observed in reducing float under different conditions. Dynamic rules require recomputing priorities to reflect changes in time and create greater implementation effort to use effectively. Static rules require only one priority computation, resulting in easier implementation. This study indicates that one of the static priority rules tested provides comparable performance to the two dynamic rules.     

论我国会计法规体系及其结构

我国会计法规体系应分别从纵向和横向进行划分:纵向上,按照我国会计法规的制定机关和法律效力将其分为会计法律、会计行政法规、会计部门规章与地方政府和行业主管部门的会计规章四个层次;横向上,按照会计法规的内容将会其划分为会计核算方面的法规、会计监督方面的法规、会计机构和会计人员方面的法规以及会计工作管理方面的法规四个方面。     

基于规则控制的风险导向审计模式探讨——以公路建设项目分析为例

以规则规范风险导向审计活动,以规则引领内部审计的转型,是基于规则控制的风险导向内部审计的基本特征。公路建设项目的风险导向审计模式是一个以规则为主导的多元结构的控制系统,这里的规则主要包括风险导向审计规程和风险导向审计作业指引两个层次。风险导向审计作业指引作为操作性的规则,在实际工作中特别重要。要实施公路建设项目风险导向审计模式,还需要在控制平台、控制规范、控制主体和控制中心等方面做好工作。     

Optimal interest-rate rules and inflation stabilization versus price-level stabilization

This paper compares the properties of interest-rate rules such as simple Taylor rules and rules that respond to price-level fluctuations (called Wicksellian rules) in a basic forward-looking model. By introducing appropriate history dependence in policy, Wicksellian rules perform better than optimal Taylor rules in terms of welfare, robustness to alternative shock processes, and are less prone to equilibrium indeterminacy. A simple Wicksellian rule augmented with a high degree of interest rate inertia resembles a robustly optimal rule, i.e., a monetary policy rule that implements the optimal plan and that is also completely robust to the specification of exogenous shock processes.     

内部控制审计强制规则对会计信息价值相关性的影响研究

我国内部控制审计经历了由自愿规则至强制规则的转变,以2007—2021年内部控制审计上市公司为样本,研究不同规则下内部控制审计与会计信息价值相关性之间的关系。研究发现：相对于自愿规则,强制规则减弱了会计信息价值相关性;强制规则在审计意见类型和审计模式对会计信息价值相关性的影响程度上有所不同。盈余质量、机构投资者和分析师关注均可以缓解强制规则对会计信息价值相关性的负向影响。研究结论表明在当前强制规则下,上市公司在加强内部控制建设以获取无保留审计意见的同时,还应关注独立审计模式带来的增量价值;提高盈余质量,充分发挥机构投资者和分析师的作用,也有助于缓解信息不对称,提高会计信息价值相关性。     

An investigation of labor assignment rules in a dual-constrained job shop

One of the management decisions required to operate a dual-constrained job shop is the labor assignment rule. This study examines the effects of various labor assignment rules on the shop's performance. Eleven different labor assignment rules are simulated. A longest-queue rule and the traditional counterparts of the first-in-system, first-served, shortest operation time, job due date, critical ratio and shortest processing time dispatching rules are used to determine to which work center available workers should be transferred. Also tested are five new labor assignment rules that use an average of the priority values of all jobs in queue at a particular work center to determine whether that work center should receive the available worker.A SIMSCRIPT simulation program that models nine work centers provided the mechanism by which these rules were tested. Five dispatching rules, the counterparts of the five “traditional counterpart” labor assignment rules mentioned earlier, provided different shop environments. Also, the level of staffing of the work centers was altered to provide additional ship environments. Staffing levels of 50% and 67% were employed.The results show that none of the eleven labor assignment rules had a significant impact on shop performance. This is an important result because it implies that a manager can make the labor assignment decision based on other criteria such as ease or cost of application of the rules. These results were relatively insensitive to the shop environment, as represented by the dispatching rule and the staffing level.     

On stable rules for selecting committees

A voting rule is said to be stable if it always elects a fixed-size subset of candidates such that there is no outside candidate who is majority preferred to any candidate in this set whenever such a set exists. Such a set is called a Weak Condorcet Committee (WCC). Four stable rules have been proposed in the literature. In this paper, we propose two new stable rules. Since nothing is known about the properties of the stable rules, we evaluate all the identified stable rules on the basis of some appealing properties of voting rules. We show that they all satisfy the Pareto criterion and they are not monotonic. More, we show that every stable rule fails the reinforcement requirement.     

基于新结构经济学视角的我国环社规则改革分析

本文基于新结构经济学中最优环境结构的相关理论,结合新结构经济学政策实践中的相关方法(如TCI和ITCI指数等),研究在我国联合国际开发资本共建"一带一路"以及对外投资中的环社规则的改革优化问题,给出了一个确定最优环社规则的方法.其核心内容是不同国家在不同经济发展阶段的最优环社规则存在差异,环社规则改革应与经济发展阶段及...