波德莱尔与鲁迅笔下“猫头鹰”意象的跨文化解读

猫头鹰是中西文化谱系中凝定着特定审美经验与象征喻义的文化意象。文章通过对猫头鹰意象的原型解读,跨文化地探勘了波德莱尔与鲁迅笔下"猫头鹰"意象所蕴藉的知识分子从叛逆到批判的精神谱系;深度阐释了波德莱尔与鲁迅笔下猫头鹰意象的象征意蕴、文化差异以及两者的心灵契合和话语共鸣。     

Editorial Another milestone

A Master Production Scheduling Decision Support System within a multi-product medical supplies market has the dual task of providing good customer service levels while maintaining minimum reasonable levels of finished goods stock in the face of considerable internal manufacturing lead time and customer demand uncertainty. This paper examines the critical design parameters within an adaptive model highlighting how the total system orders in the internal pipeline are utilized in the decision-making process for assessing how much to load the internal manufacturing pipeline. Two different methods for tracking manufacturing lead times within the adaptive loop are also considered. Classical control concepts are applied within the Decision Support System (DSS) to avoid any long-term drift in finished stocks. Finally scenario analysis is performed via simulation for a set of design parameters and a range of stimuli typical of company operating situations. An effective decision support system design in terms of architecture and parameter settings is recommended based upon the ability of the model to maintain high customer service levels. The DSS readily interfaces between marketing and production functions to enhance company competitive advantage across a wide range of products.     

Processing in a multi-machine batch manufacturing system with sequence dependent cost

Many workcells in batch manufacturing systems are populated with multiple, nonidentical machines that perform similar tasks. Because of the size of a batch when a job arrives, it may be uneconomical to set up two or more machines to process the same job simultaneously. An economic decision has to be made as regards which machine in the cell to assign the job. Likewise, many multi-operation jobs can be processed using one of several feasible operation sequences that may lead to different total manufacturing costs. The cost differences are the result of several factors, among which are processing time and cost dependencies between operations, fixturing requirements, and material handling requirements. When the workcell machine selection decision is considered along with the operation sequencing decision, determination of the best machine in a cell and the best operation sequence for the batch is a non-trivial task. In this paper, we address the problem of selecting the best machine within a cell and the best operation sequence for a batch when operation cost is machine and sequence dependent. The problem is modeled mathematically and solved using a heuristic algorithm. The performance of the algorithm is compared with that of an exact solution procedure.     

Production and inventory control at ABB Motors and Volvo Wheel Loaders,two examples of MRP in practical use

The paper presents the main routines of production and inventory control at ABB Motors, Västerås and Volvo Wheel Loaders, Eskilstuna. The primary interest is to present how Material Requirements Planning (MRP) is used in these two companies. If the number of end items is large, the company assembles-to-order or makes-to-order then additions to pure MRP seem to be necessary. ABB Motors and Volvo Wheel Loader use: planning bills, a normal bill of materials with 'adding bills of materials', a master production schedule planning system with an available-to-promise function and a home-made 'system' for modules available-to-promise. One important measure for the both companies is the accumulative lead-time. An increase of the Master Production Schedule in a shorter time than the accumulative lead-time is avoided, because it will lead to suggestions of purchase in past time periods and therefore most probably to future material shortages.     

MRP system performance under lumpy demand environments

Material requirements planning (MRP) systems are deemed to deal with master schedules with lumpy demand patterns better than any other production scheduling system. Past studies have advocated important advantages of using MRP systems. The objective of this paper is to look into the impact of patterns of demand lumpiness on the performance of MRP systems by a simulation study. Results show that there is an important threshold point in terms of degree of lumpiness at which MRP system performance starts to deteriorate in the operating conditions considered. If master production schedules (MPS) can be controlled by manufacturers, MRP users should exercise caution to introduce demand lumpiness in MPS to improve system performance. If not, MRP users should then examine the given lumpiness and choose an appropriate lot-sizing rule that has been shown to take advantage of the effect of demand lumpiness.     

Effect of forecast errors on rolling horizon master production schedule cost performance for various replanning intervals

Master production schedules are usually updated by the use of a rolling schedule. Previous studies on rolling schedules seem to form the consensus that frequent replanning of a master production schedule (MPS) can increase costs and schedule instability. Building on previous research on rolling schedules, this study addresses the impact of overestimation or underestimation of demand on the rolling horizon MPS cost performance for various replanning frequencies. The MPS model developed in this paper is based on actual data collected from a paint company. Results indicate that under both the forecast errors conditions investigated in this study, a two-replanning interval provided the best MPS cost performance for this company environment. However, results from the sensitivity analysis performed on the MPS model indicate that when the setup and inventory carrying costs are high, a 1-month replanning frequency (frequent replanning) seems more appropriate for both of the above forecast error scenarios.     

《鬼谷子》谋略思想及学术价值

《鬼谷子》是先秦时期很有特色的一部学术著作。由于秦汉以降,在长期的封建社会里属于非主流文化,因而使其学术价值湮没不彰。文章从《鬼谷子》谋略思维的根据、原则和方式,谋略主体的素质和修养,论证了其学术价值,同时指出了其负面影响。     

销售及运营计划（S＆OP）与企业各资源规划系统关系探微

21世纪的竞争是供应链之间的竞争。而销售及运营计划（S＆OP），一个先进、实用、成效显著的决策工具，能够为高层管理者构建随需而动的高效供应链。本文从企业目标层级，内部资源计划体系以及各职能部门的连接三方面着手探索了销售及运营计划（S＆OP）的运行机制。     

一“点”之差 ，两种境界——文献版本考证与思想艺术领悟交叉之一例

《红楼梦》原文贾宝玉的绰号是“绛洞花王”还是“绛洞花主”不仅是一个版本的技术鉴别问题,也是一个思想认识和艺术感悟问题。版本考证必须兼顾文本内容的正确理解。     

大师彰显大学 大气乃蕴大成——漫议新建本科大学的办学理念

大师和大气是最能形象地描绘现代大学外在特征的两个词语,也应当是新建本科大学办学理念的核心所在。无论如何定位、以何为特色,对大师和大气的追求将是新建本科大学向真正的大学迈进的前提、基础和标志。有大师、有大楼、有大气,上下齐心、师生奋进,假以时日,虽新建院校,亦会有大成,会有一流大学。