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28 February 2011, Volume 14 Issue 1    Next Issue

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Classification of Organizational Factors for Nuclear Power Plant Safety DAI Li-Cao1,2, LI Peng-Cheng2, ZHANG Li2,3 2011, 14 (1):  1-5.  Abstract ( 4250 )   Save A comprehensive classification framework of organizational factors is developed by combining the existing categories and those from questionnaires.There are three main categories: organizational strategy and goals,organizational structure,and organizational culture.With the proposed classification framework,71 reports of human factor incidents in a nuclear power plant from 2000 to 2003 are analyzed.Based on the analysis,the critical factors are identified.Moreover,the categories of organizational factors relative to safety are obtained with R-type clustering. References | Related Articles | Metrics

Incentive Mechanism in the “PrincipalMembers” Strategic Alliance Meng Wei-dong1, Zhou Yun-long1, Yang Jing2 2011, 14 (1):  6-10.  Abstract ( 3912 )   Save   In the principalmembers strategic alliance,the members can be encouraged to give up hiding information by means of profit distribution and technology sharing.The effect of profit distribution and technology sharing on the successfulness of such an alliance is analyzed.It shows that when the principal shares technology with its members equally and distributes more profit to the more capable members,the members will expose their private information.In this way,the alliance will succeed. References | Related Articles | Metrics

WinWin Analysis at the Upstream-Segment under VMI with Stochastic Demand Li Lei1, Yang Huai-zhen2 2011, 14 (1):  11-15.  Abstract ( 4658 )   Save The upstreamsegment under vendor managed inventory (VMI) mode is considered in this paper, where VMI is applied between accessory suppliers and a final product manufacturer.With stochastic demands considered, mathematical models are developed for both of the suppliers and the manufacturer to benefit from VMI.To get more profits, the former can increase product prices while the latter can reduce inventory costs.Simulation experiments demonstrate that the winwin result is able to be achieved. References | Related Articles | Metrics

A Simulation Study on Facility Layout of Production System Xu Xue-jun, Lu De-mou, Zha Jing, Li Wen-jiao 2011, 14 (1):  16-22.  Abstract ( 4792 )   Save Comparison analysis is made for the existing three types of production line layout: Lline,Uline,and the cellular manufacturing.Based on the analysis,a simulation study on a displayer manufacturing process in an electronic company is conducted.Results show that for single product with small batch Uline is better,while for single product with large batch,or the number of products is small but the quantity is large,or the number of products is large but the quantity is small,cellular manufacturing performs the best. References | Related Articles | Metrics

Simulation Study on Opinion Evolutions in Mixed Personality Groups Yang Lei, Xi Peng 2011, 14 (1):  23-27.  Abstract ( 4434 )   Save   Various decision makers have different personalities and different acceptances on opinions.Based on the Deffuant mode,an evolutionary model of the members’ personalities is designed.The simulation experiments show that as the increase of the number of nonassertive,paranoid,and stubborn individuals,the steps to reach consistency are increased,also the final opinion consistency degree decreases.This implies that decision makers’ personalities have significant effects on opinion evolution. References | Related Articles | Metrics

Price Coordination of Closed-Loop Supply Chain Involving Third-Party Recycling Zhang Ke-yong1,2, Zhou Guo-hua1 2011, 14 (1):  28-32.  Abstract ( 4994 )   Save Based on the game theory,the differential price coordination is addressed in this paper for a closed-loop supply chain with third-party collection of used products.First,the decentralized and centralized differential pricing models are established.With them,the optimal pricing strategy and the optimal profit for the members in a closed-loop supply chain are analyzed.Then,it is found that efficiency is lost in the decentralized closed-loop supply chain.Finally，it puts forward a profitsharing coordination contract to coordinate the closedloop supply chain,which makes the profit of the decentralized closed-loop supply chain equal to that of the integrated closed-loop supply chain. References | Related Articles | Metrics

Product-Oriented Collaborative Innovation of Hi-Technology Enterprise Clusters Ou Guang-jun1， Liu Ye-biao2 2011, 14 (1):  33-37.  Abstract ( 4840 )   Save   Collaborative innovation is the key issue for an enterprise cluster to improve its innovation and enhance its competitiveness in the global industrial chain.Using the idea of systematic synergy,a network framework of knowledge interaction for value creation is proposed in this paper.With the framework,collaborative innovation is realized by using modular operation mode.The main advantages are integrating various factors,improving efficiency,and speeding the whole process. References | Related Articles | Metrics

Optimal Dynamic Pricing Policies of ShortLifeCycle  Products for Hybrid Consumers Shen Cheng-lin1, Zhang Xin-xin2 2011, 14 (1):  38-42.  Abstract ( 4142 )   Save The dynamic pricing problem of shortlifecycle products is discussed for an environment with strategic and nonstrategic consumer coexistence.Firstly, a game theory process between a retailer and its consumers is analyzed, and the optimal purchasing policies of the consumers are determined.Then, demand models at different times are established and the consumers’ behaviors are analyzed.Finally, the optimal dynamic pricing policy is introduced for the maximization of overall revenues of the above two stages. References | Related Articles | Metrics

Linear Quadratic Differential Game and its Application to Life-Cycle Analysis of Industrial Cluster Gao Xiao-qiu1， Sun Pei-hong1,2， Zhang Cheng-ke3 2011, 14 (1):  43-46.  Abstract ( 4357 )   Save Although a lot of theoretical research achievements have been obtained,there is still a gap between theory and applications.Aiming at practical applications,this paper analyzes the status and trends of the linear quadratic differential game model.In this way,it provides a feasible analysis tool and guidelines for the development strategies of industrial clusters. References | Related Articles | Metrics

Game Theory Analysis of Innovation and Imitation in an Enterprise Cluster Yang Jian1, Wang Shu-en2 2011, 14 (1):  47-52.  Abstract ( 4909 )   Save   An enterprise needs to make a decision between two strategies:innovation or imitation.To solve this problem,a game theory model is built for an enterprise cluster for this problem.With this model,profits for different time periods are calculated for different strategies respectively.Then,a solution is obtained under a hybrid strategy and a guideline is presented for this decision making problem. References | Related Articles | Metrics

A ClusteringBased Particle Swarm Optimization Algorithm for Scheduling in MES Liao Bo 2011, 14 (1):  53-57.  Abstract ( 4792 )   Save A new particle swarm optimization (PSO) algorithm is proposed for scheduling in manufacturing execution systems (MES).By taking scheduling function as a standalone module in an MES, the proposed algorithm uses clustering technique to improve the particles’ search space.Simulation results demonstrate that it is more efficient than the traditional scheduling algorithms. References | Related Articles | Metrics

Social Network View of Trust Formation of Enterprise Cluster  ) Zhao Hua， Xia Han-wu 2011, 14 (1):  58-62.  Abstract ( 4133 )   Save To explore the formation mechanism of trust between members in a cluster, a reputation model is developed.With this model, the game playing behavior of the members for long-term cooperation with or without a reputation transmission mechanism is analyzed such that a trust formation mechanism is presented.The formation mechanism is essentially a game equilibrium.Then, by using a modified KMRW(Kreps,Milgrom,Roberts and Wilson) model, it shows that good reputations are vitally important for an enterprise cluster to set up a long-term cooperation with trust. References | Related Articles | Metrics

An Evaluation Model for the Pearl River Delta Regional Economics Cao Jian-xin，Tan Pei-hong 2011, 14 (1):  63-66.  Abstract ( 3935 )   Save  Integrating the ideas of Diamond and Groundings Enterprises Markets (GEM) models, a novel model to evaluate the economic level of a regional economics is developed, which overcomes the disadvantages of the existing evaluation models.With the framework of the model, analytic hierarchy process (AHP) method is adopted to determine the weight of each evaluation index.The proposed model is used to evaluate the economic development of the Pearl River Delta Region. References | Related Articles | Metrics

ShortTerm Scheduling of Crude Oil Operations and Its Complexity Bai Li-ping, Wu Nai-qi 2011, 14 (1):  67-71.  Abstract ( 4933 )   Save  This paper focuses on the tractability of shortterm scheduling for crude oil operations.With the help of control theory,a model of shortterm scheduling is developed.Then the complexity of pipeline scheduling is discussed.It concludes that the shortterm scheduling problem of crude oil operations is NPhard,which implies that it is intractable and further research is required. References | Related Articles | Metrics

An EOQ Model for Items with Weibull Distribution Deterioration Rate Wang Dao-ping1, Yu Jun-di1, Li Xiang-yang2 2011, 14 (1):  72-76.  Abstract ( 4766 )   Save For deterioration items,the deterioration rate can be described by Weibull distribution.Basing on this assumption,a new economic order quantity (EOQ) model with timevarying demands and purchase prices is developed to analyze the effect of deteriorating items on inventory management.With this model,numerical analysis and parameter sensitivity analysis are done.It shows that an optimal solution for this problem exists and different parameters have different effect on the optimal inventory control policy. References | Related Articles | Metrics

Data Platform Construction with CAE Technology of Motor Engine Ni Ji-min, Zhou Tong, Ye Nian-ye, Shi Xiu-yong 2011, 14 (1):  77-82.  Abstract ( 4066 )   Save  It is very important to effectively manage the data for motor engines.With requirement analysis of automobile enterprises conducted,a data classification method is proposed and a data management model for motor engines is developed.Based on the model,an engine database management system is developed.Some issues faced in the development of the data system,such as data security issue,are pointed out and solutions for them are proposed. References | Related Articles | Metrics

Prediction Model of Inventory Demand for Regional Logistics Network With  Multidistribution Centers Huang Xi1,2, Xiong Hui2, Zou An-quan1,2, Li Hai-tao2 2011, 14 (1):  83-86.  Abstract ( 4065 )   Save Inventory problem for a regional logistics network with m distribution centers and n retailers is studied.To solve this problem,a network prediction model of inventory demands is built.By using Dijkstra’s shortest path algorithm,the total demands of each distribution center can be determined.The correctness and feasibility of the model is evaluated by a case study. References | Related Articles | Metrics

PCABased Performance Evaluation of Material Flow in Manufacturing Enterprise Fang Yong-mei, Liu Wei-zhang, Yang Zhen-gang, Lu Cui-ping 2011, 14 (1):  87-90.  Abstract ( 3948 )   Save There is a large body of research reports on third party logistics and supply chain for interenterprises.However,less research attention is paid for material flow in a manufacturing enterprise.The performance evaluation of material flow in an enterprise is addressed in this paper and an evaluation system is developed.It adopts Principal Components Analysis (PCA) to assess the performance.The system is helpful for enterprises to reduce production cost and improve service quality. References | Related Articles | Metrics

Fatigue Analysis by Performance Comparison between Blood Alcohol Content and Sleep Deprivation Sun Tao1, Xu Ke-lin1, Yang Yu1, Liu Long1, Fang Wei-ning2 2011, 14 (1):  91-95.  Abstract ( 4188 )   Save Comparative experiments are conducted to analyze fatigue in this paper.The participants are randomly divided into two groups: the winedrinking group and the sleep deprivation group.In the former,the participants drink a certain amount of wine at regular intervals and then are tested.In the latter,they are forced to keep awake for 28 hours and then are tested at regular intervals.The equivalent length of awaking time can be obtained by comparing the performances of the two groups so as to measure the fatigue. References | Related Articles | Metrics

MarketDemand Adaptive Method for Best Cycle Time Selection of Production Line Ge An-hua, Liu Chao, Sun Jing 2011, 14 (1):  96-100.  Abstract ( 4172 )   Save  Based on the idea of lean production, a new cost model of manufacturing for a single machine is developed so as to determine the best cycle time of a production line.Then a method of selecting the best cycle time for an assembly line during the design stage is proposed.The method is able to adapt to market demand changes.Both the model and method are evaluated by means of a case study. References | Related Articles | Metrics

Application of Procedure Analysis to Galvanized Steel Sheet Production Lü Xiu-jie 2011, 14 (1):  101-104.  Abstract ( 3903 )   Save  The process of an existing galvanized steel sheet production in a company is analyzed by using procedure analysis.With this analysis, redundant activities are removed and the production process is redesigned.Then, layout is improved such that the processing route is shortened.In this way, the cycle time is reduced by 23% and the production rate is increased. References | Related Articles | Metrics

Fuzzy Option Contract in a Supply Chain with a Leading Retailer and an InnovationInvesting Supplier  Cai Hong-wen1,2, Cai Hong-wu3 2011, 14 (1):  105-109.  Abstract ( 3825 )   Save A supply chain consisting of a supplier and a retailer is considered in this paper.To coordinate such a supply well,a novel option contract mechanism is established.In this mechanism,the retailer is the leader and proposes the option contract,while the supplier is the follower and purchases the option.The mathematical expectation of the inverse function of the credibility function is adopted for optimization.The simulation experiment demonstrates that the proposed mechanism can coordinate the supply chain well. References | Related Articles | Metrics

ErgonomicsBased Usability Design of Linkage Control Panels of the Port Machinery Cab Gao Jing1, Qian Xing-san1 , Wang Shu-yi2 , Zhao Gai-ping2, Yin Xun-chao2 2011, 14 (1):  110-113.  Abstract ( 4018 )   Save After brief introduction of the usability definition,the design principle of the Solid User Interface is discussed.By focusing on the linkage control panels of the port machinery cab,usability for the existing system is analyzed.Then,by using the theory and technology of ergonomics,the location of the panels,the layout of the interface,and the colors of the control components are optimized to improve the overall usability. References | Related Articles | Metrics

A Driver’s Perception and Comprehension of Traffic Signs in Beijing Wang Pei, Peiluen Patrick Rau 2011, 14 (1):  114-117.  Abstract ( 4235 )   Save   A driver’s ability of perceiving and comprehending traffic signs is affected by his/her mental workload and the information volume of the traffic signs.In this paper,a novel method is proposed to determine the information volume.By a simulation experiment for the process of driving to the destinations with the guide of traffic signs in Beijing,it is shown that the proposed method fits the subjective rating of the information volume well.Further analysis indicates that 1) the effect of the information volume is insignificant,2) the effect of mental workload on sign identification rate,decision time,accuracy,and confidence ratings is significant,and 3) the effect on perceived task load and sign detection time is insignificant. References | Related Articles | Metrics

eM-PlantBased Modeling and Simulation of Assembly Lines of Plastic Products Huo Jian-en,Peng Chong-jia 2011, 14 (1):  118-122.  Abstract ( 4841 )   Save Due to the high work in process (WIP) level for production processes of plastic products,lot sizing problem is discussed in this paper.By analyzing the production processes,a simulation model is built based on the eMPlant platform.By simulation with this model,it shows that the WIP can be significantly reduced and meanwhile productivity can be increased if an appropriate lot size at different stage of the production process is chosen.Moreover,guideline is presented for how lot size can be determined. References | Related Articles | Metrics

Review of Control Optimization for Automated Storage and Retrieval Systems Yang Peng, Miao Li-xin 2011, 14 (1):  123-127.  Abstract ( 5000 )   Save  Control optimization is the most significant issue in improving system performance.This paper compares the characteristics of different storage and retrieval policies in production and distribution environment.It shows that the key issue in control optimization for AS/RS in the production environment is the realtime performance of retrieving items,while that in the distribution environment is the overall balance performance of storing and retrieving items.Then,a comprehensive review of the state of the art in operating AS/RS is made for the crucial issues such as storage location assignment,dwellpoint location,request sequencing,and order batching.The future research directions are pointed out. References | Related Articles | Metrics