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30 June 2011, Volume 14 Issue 3 Previous Issue    Next Issue

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Research on Profit-Cost of Auto-Engine in Reverse Supply Chain Xie Qiu, Liu Zi-xian, Qi Er-shi 2011, 14 (3):  1-7.  Abstract ( 795 )   Save The profit and cost of engine remanufacturing is widely concerned by both industry and academia and study is conducted for this problem in the viewpoint of reverse supply chain in this paper. First, a model is developed for profitcost analysis of engine remanufacturing in reverse supply chain. Then, quantitative and qualitative analysis methods are presented to show the factors that have significant impact on the profit and cost and how these factors influence the profit and cost. Also, sensitive analysis is done. Based on the analysis results, suggestions are made for how auto industry should do to improve engine remanufacturing in China. References | Related Articles | Metrics

Study on Government Regulating of Production Safety Based on Commission-Agent Theory Shen Bin，Mei Qiang 2011, 14 (3):  8-13.  Abstract ( 3167 )   Save   In the regulating of enterprise production safety, the information owned by the government and enterprises is asymmetry. In other words, it is a commissionagent relationship between the government and enterprises. The government owns less information than the enterprises. Based on the commissionagent theory, the tipping point of production safety investment for enterprises and regulating cost for the government are discussed in this paper. A mathematical model is developed to describe the investment by enterprises and the regulating cost for the government on production safety regulating in considering profit return lag. With this model, analysis shows that the longterm influence of the commissionagent relationship between the enterprises and government is different from the shortterm one on the production safety investment made by the enterprises and the regulating cost of the government. References | Related Articles | Metrics

Catastrophe Evaluation of Technological Innovation Capability in High-tech Industries Liu Yi-xin，Zhang Guang-yu，Zhang Yu-lei，Liao Li-ping 2011, 14 (3):  14-19.  Abstract ( 3129 )   Save In considering the characteristics of high-tech industries and reference to the literature, a set of factors that may have effect on industrial technological innovation capability is collected. Then, by using the statistic data from the government, the factors are optimally selected such that an index system for technological innovation capability evaluation of high-tech industries is developed. Further, based on this system, a model for evaluation of technological innovation capability mutation in high-tech industries is presented by introducing the catastrophe progression method. It is applied to five major high-tech industries in China to demonstrate the effectiveness of the proposed method. References | Related Articles | Metrics

Research on the Impact Factors of Commercial Bank Performance Evaluation Chen Zhong-chang1, Liu Jia1, Lin Chuan2 2011, 14 (3):  20-24.  Abstract ( 2937 )   Save Aiming at developing an effective performance evaluation system for commercial banks, study is conducted to discover factors that have effect on performance of commercial banks. By analyzing the financial and governance characteristics of the banks, a set of factors are collected. Then, based on the mixed panel data from the listed commercial banks in 1998~2008, a multivariate regression model is proposed. With this model, ordinal analysis is used to select the factors that have significant effect on the performance of commercial banks. In this way, a performance evaluation system for the commercial banks is developed. Based on the system, it is found that the joint-stock commercial banks have the highest the performance rank, the stateowned commercial banks are next, and the performance of city commercial banks is relatively low. References | Related Articles | Metrics

A Fuzzy Evaluation Approach to Employee Competitiveness Based on the Ecology Position Theory Jiao Jun-gang1，Sun Meng-ya2 2011, 14 (3):  25-28.  Abstract ( 3402 )   Save Based on the ecology position theory, a threedimensional index system of ecology position for employee competitiveness evaluation is developed. In this system, the weight is determined by using analytic hierarchy process (AHP) method. Then, a fuzzy evaluation model for employee competitiveness is presented by using fuzzy comprehensive evaluation technique. It is a new method for the business managers. A case study is given to verify the feasibility and effectiveness of the proposed method. References | Related Articles | Metrics

Integrated Optimization of Purchase and Multilevel Production Scheduling Liang Chun-hua，Zhou Hong，Xia Xiao-Wen 2011, 14 (3):  29-33.  Abstract ( 3467 )   Save Purchasing and production are important operations for enterprises. Also they have close interaction and it is better to consider them simultaneously. For this purpose, a mathematical model for integrated scheduling optimization is developed. The scheduling includes lotsizing, purchase scheduling, and production scheduling. With this model, a solution method is proposed by combining genetic algorithm with network optimization methods. In the method, chromosome of genetic algorithm provides a framework of lotsizing and production scheduling, while the network model presents purchase scheduling. Numerical results show an excellent performance of the proposed method and it outperforms the traditional hierarchical optimization strategy. References | Related Articles | Metrics

Supply Chain Coordination of Medical Protective Goods in Public Health Emergency Lin Lue, Liang Hua-li, Yu Hui 2011, 14 (3):  34-38.  Abstract ( 3530 )   Save A three-level supply chain composed of a manufacturer, a third party logistics supplier, and a retailer for medical protective goods is considered in this paper. With random demands considered, it analyzes the impact of public health emergency on the supply chain in the viewpoint of the revenue sharing contract. Results show that the supply chain is able to cope with such emergency by adjusting the wholesale prices of products and logistics service price in transfer payments such that the original revenue sharing contract can be improved under emergency. This makes the supply chain have not only the ability of antidisruption, but also can reasonably redistribute the profits among the members of the supply chain. References | Related Articles | Metrics

Research on Supply Chain Coordination with Time-and-Price Gao Bo, Shi Shu-sheng 2011, 14 (3):  39-43.  Abstract ( 4143 )   Save A two-level MTO (make to order) supply chain composed of one dealer and one manufacturer is considered in this paper. With time-and-price sensitive demands taken into account, a model for the supply chain revenue is derived. Based on the model, the impact of response time on the decisions for the manufacturer and dealer under decentralized decision making are presented, respectively. It is found that the supply chain cannot be perfectly coordinated under decentralized decision making. Furthermore, it shows that the supply chain cannot be coordinated by using revenue-sharing contract. However, under certain conditions, the supply chain can be well-coordinated by using two-part tariff contract. A numeric example is used to demonstrate the findings. References | Related Articles | Metrics

Research on the Coordination of ThreeStage Supply Chain Based  on Buy-Back Contracts Liu Hao 2011, 14 (3):  44-47.  Abstract ( 3504 )   Save The existing studies show that a two-stage supply chain with buy-back can be coordinated by buy-back contracts. However, it is not known that if this result can be applied to a three-stage supply chain. To answer this question, a three-stage supply chain composed of a manufacturer, a distributor, and a retailer is considered in this paper. A mathematical model is developed to describe the impact of buyback contracts between the manufacturer and distributor, and the distributor and retailer on the supply chain coordination. With this model, it is shown that the three-stage supply chain can be coordinated to be “win-win” by tuning the contract parameters. Further, with this model, conditions under which the supply chain can be coordinated to be “win-win” are presented. The effectiveness of the proposed method is demonstrated by a numerical example. References | Related Articles | Metrics

Decision Making and Coordination Mechanism for Trilateral Supply Chains in Recycle Market Qing Xue-lian, Zhao Wen-ping, Cui Peng-ju 2011, 14 (3):  48-54.  Abstract ( 3483 )   Save In this paper, a trilateral supply chain (TSC) mode is proposed for the production waste recycle process by combing the horizontal and vertical supply chains. For the imbalance situation of multilateral relationship between supply and demands in multiproduct and multimarket environment with uncertainty, optimalcentralized decision making and optimaldecentralized decision making with dual masterslave mode in TSC are analyzed, respectively. Results show that: 1) the TSC mode is feasible; 2) the centralized decision making is superior to the decentralized decision making; and 3) revenuecost sharing contract is an efficient policy to maximize returns of the system and realize “winwin” between the members in the supply chain. Also, the utilization of minusprice system in the TSC achieves a reasonable distribution of benefits in the production waste recycle process. References | Related Articles | Metrics

On Customer False Failure Return Policies in E-Business Environment Shen Cheng-lin1, Zhang Xin-xin2 2011, 14 (3):  55-59.  Abstract ( 3020 )   Save In this paper, false failure return policies in Ebusiness environment are studied for a supply chain composed of a manufacturer and a group of customers. A decision model is developed in considering customers' strategic decision making process. With this model, the optimal price, optimal stocking quantity, and optimal return price, as well as critical selling cost based on Ebusiness environment are analyzed for three different return policies respectively. These three return policies are compared with respect to the supply chain performance. Results show that when purchasing/production cost or the salvage value is very low, nonreturn policy is optimal compared with the full return policy, while the partial return policy is always superior to the full return policy for the supplier/manufacturer. References | Related Articles | Metrics

Comparative Study on Optimal Ordering Policy and Applicability of Different Contracts under Supply Chain Environment Fang Wei-guo, Li Li 2011, 14 (3):  60-65.  Abstract ( 3561 )   Save A supply chain formed by a manufacturer and a retailer for single perishable product is considered in this paper. Based on the Newsvendor model of singleperiod stochastic inventory problem, comparative study is conducted for three kinds of supply chain contracts: the buyback contract, revenue sharing contract, and quantity discount contract. For these contracts, optimal ordering policy for retailer and expected profits for both retailer and manufacturer are derived, respectively. Then, the applicability conditions of these contracts are analyzed. With the proposed method, as an industrial case, a leather cloth production and sale supply chain is presented to verify the results obtained in this paper. This study reveals the mechanism for understanding the applicability of different supply chain contracts. References | Related Articles | Metrics

Analysis and Application of the Investment Portfolio Model with Financing Based on Fuzzy Decision Theory Wu Jin-gui, Li Rong-jun 2011, 14 (3):  66-69.  Abstract ( 3256 )   Save The effective mean-semi-deviation portfolio model is used for the analysis of the investment portfolio with financing in this paper. First, the gain obtained by the mean-semi-deviation model with financing and the risks of the goal are described in a fuzzy way by constructing the linear membership functions μmax(x) and μmin(x), which are widely used. Then, based on fuzzy decision theory, variable μ is introduced to transform the biobjective model with financing under fuzzy environment into a linear portfolio selection model with financing. This model not only greatly simplifies the computation, but also clearly describes the subjective investment willingness of the investors. Finally, an example is presented to illustrate the applicability and effectiveness of the proposed model. References | Related Articles | Metrics

Analysis of Multi-Stage Purchasing Strategy for Export-Oriented Manufacturers under Flexible Lease Mechanism Wang Jiang-yun, Wang Rui 2011, 14 (3):  70-73.  Abstract ( 3260 )   Save  To cope with the uncertainty risk in the postcrisis era, multistage purchasing strategy for exportoriented manufacturers in China under flexible lease mechanism is studied. A new fuzzy stochastic dynamic programming is developed to describe the problem. Then, a new solution method is presented by simulating the exchange rate and fuzzy random variables with binary tree model and Monte Carlo method, respectively. A numerical example is used to verify the feasibility of the proposed model. This method is helpful for global purchasing planning for the exportoriented manufacturers in China. References | Related Articles | Metrics

Knowledge Transfer and Team Performance in Knowledge Team Ni Yuan1, Lin Jian2 2011, 14 (3):  74-79.  Abstract ( 3346 )   Save  〖WT5”BZ〗 ()  In this paper, the characteristics of the team knowledge transfer, and the transfer tools and techniques are analyzed in detail. Then, a model is developed to describe the relation between the knowledge transfer and team performance. With the model, a number of hypotheses are presented. To validate these hypotheses, questionnaire from 500 knowledge workers in different teams are collected. The data are processed by using statistical tools such as SPSS and AMOS. In this way, interesting results are obtained. References | Related Articles | Metrics

Supplier Selection and Order Allocation Based on Logistics Service Supply Chain Jiang Yi-yang, Wang Yong, Deng Zhe-feng 2011, 14 (3):  80-86.  Abstract ( 3458 )   Save  With irregular customer demands in Logistics Service Supply Chain (LSSC), the major problem faced by an integrated logistics service provider (ILSP) is how to effectively coordinate the logistics capability of logistics providers. In this paper, such a supply chain is considered where an ILSP allocates orders to each logistics service provider by taking the logistics capability difference for each distribution site into account. An optimization model is developed for the problem discussed in considering the suppliers' orders on hand, logistics capacity availability, distribution efficiency, defective rate, and cost. With this model, the solution procedure for logistics supplier selection and order allocation is proposed. Then, a numerical example is given. Results show that, with the proposed method, appropriate suppliers can be selected and the order allocation is optimized such that cost is reduced while desired service level is ensured. Thus, by using the proposed method, the suppliers are able to increase their competitiveness. References | Related Articles | Metrics

Study on Venture Capital Input and the Incentive Contract with Bilateral Moral Hazard Cai Yong-qing, Cao Guo-hua, Chen Yan-li 2011, 14 (3):  87-91.  Abstract ( 3212 )   Save Based on the theory of modern contract and information economics, a linear incentive contract between venture capitalist and venture entrepreneur under bilateral moral hazard condition is designed. With this contract, the efforts and capital investment of both sides, and the output are analyzed with complete and incomplete information. By doing so, it presents how the sharing arrangement in the contract affects the incentive function for the input factors. A numerical example is given to verify the results obtained in this paper. References | Related Articles | Metrics

Study on Wholesale Price Contract with Price-Dependent Demands Ma Rong1, Ma Jun2, Wang Ya-tao1 2011, 14 (3):  92-95.  Abstract ( 3838 )   Save The wholesale price contract with price dependent demands is discussed for a supply chain composed of a manufacturer and a retailer. In such a supply chain, the manufacturer determines the wholesale price, while the retailer determines the ordering quantity and sale price. The supply chain can operate under centralized or decentralized decision making mode. In this study, the profits, sale price, and sale quantity resulting from centralized decision making are set as benchmark. To explore the performance of decentralized decision making, the profits, sale price, and sale quantity resulting from decentralized decision making are compared with the benchmark. By doing so, it is shown how the wholesale price and the price elasticity affect the efficiency of the supply chain and profit distribution in the supply chain. References | Related Articles | Metrics

practice & application

Multi-Rule-Based Spatial Scheduling in Hull Blocks Construction Zhang Zhi-ying, Zeng Yan-hui, Chen Jie 2011, 14 (3):  96-100.  Abstract ( 3425 )   Save  When hull blocks are constructed in a rectangle working plate conflict between time and space exists. To avoid such conflict, a spatial scheduling method based on multirules is proposed in this paper. In this method, time and space similarity rule is proposed. All the unscheduled blocks in the same scheduling period are classified by using the time and space similarity rule. Then, these blocks are allocated into corresponding time slots. The layout of these blocks on working plate is then determined by means of the Best available point search method. The blocks in the same set are then sequenced according to the construction order of the hull. A hull block construction case from a real shipbuilding factory is used to validate the effectiveness and applicability of the proposed method. References | Related Articles | Metrics

Application of SLP to the Layout Design of Workshop in a Motorcycle Company Zhou Kang-qu1， Zhang Rui-juan1， Liu Ji-an1， Xia Min2 2011, 14 (3):  101-105.  Abstract ( 3889 )   Save In this paper, a layout redesign case study from a motorcycle company is presented by applying systematic layout planning (SLP) method. The relation graph for all workshops in the company is obtained by analyzing the material and nonmaterial flows. This results in two preliminary layout plans. These two plans are compared by examining the material handling efficiency, space utilization, management convenience, etc., and the final design is obtained. By this layout redesign, productivity can be increased by 18% and production capacity is increased such that the requirement of 1 600 engines per day can be met. References | Related Articles | Metrics

Global Layout Design for Iron and Steel Plants Based on SLP Zhou Er-min, Chen Ke-lou 2011, 14 (3):  106-109.  Abstract ( 4039 )   Save  In this paper, layout design is addressed for iron and steel plant such that the general design requirements can be satisfied by using systematic layout planning (SLP) method. According to the production process for the entire plant, the material flow relation is determined among the main facilities including the production workshops, auxiliary plants, power plants, transportation fields, the administrative departments, and subsidiary production and living services departments. With these data, aggregate layout design is obtained. Then, detailed layout is designed based on the space required for each facility. It shows that the design obtained can save space, reduce production cost, and increase productivity. References | Related Articles | Metrics

Optimal Task Assignment of Electric Control Board Assembly Based on Element Combination Chen Jian-guo， Chen Yong-zhao， Yang Chun 2011, 14 (3):  110-114.  Abstract ( 3696 )   Save  An electric control board assembly process is studied for line balance improvement. To do so, according to the production process requirements, the operations in the process are standardized. Then, clustering analysis is carried out to the elements that should be assembled onto the electric control board. Based on the results of clustering analysis, the elements are grouped and their assembling order is determined. The assembling tasks for the element groups are optimally assigned to the workstations. In this way, the electric control board assembly line balance is improved. This method is applied to an enterprise as a case, results show that the line balance ratio is improved by 22.13% and productivity is increased by 35.99%. This is a significant improvement. References | Related Articles | Metrics

Risk Analysis for Energy Management Contract in the Promotion of LED Lamp Application to Street Lighting 2011, 14 (3):  115-118.  Abstract ( 4183 )   Save  Energy management contract is an important means of energy saving. Aiming at the promotion of LED lamp application to street lighting, a risk assessment system of energy management contract in the promotion of LED to street lighting is developed. Based on this system, analytic hierarchy process (AHP) is used to assess the risk. By this method, it can determine the risk coefficient for each risk factor, and risk analysis can be done for a region where energy management contract is used to promote the application of LED lamps to street lighting. References | Related Articles | Metrics

Risk Assessment of Project Contractors Based on Generalized Regression Neural Network    Sun Yu，Xu Ke-lin，Qin Wei 2011, 14 (3):  119-123.  Abstract ( 3365 )   Save Because of the lack of risk assessment tools for project contractors, often loss occurs in such companies. Some time, the loss may be great. To solve this problem, a risk assessment system for project contractors is built by analyzing their characteristics. By this system, the risk assessment is done by using generalized regression neural network (GRNN). By using Matlab as tool, a case from a company of building security is given to demonstrate the effectiveness of the proposed approach.  References | Related Articles | Metrics

Simulation Study on Production Flow in Auto Part Manufacturing Based on Witness  Mao Jian, Qiao Jinyou, Wang Li-jun, Wang Ying 2011, 14 (3):  124-127.  Abstract ( 3636 )   Save Aiming at optimizing the production flows, simulation study is done for auto part manufacturing process in a company by using simulation platform Witness. By analyzing the production process, a model is built that can run in Witness. By simulation, problems are found and improvements are made to the production flows. Consequently, equipment utilization is increased by 91.43%, the production cycle time is reduced by 43.43%, and the productivity is increased by 67.80%. This is a significant improvement. References | Related Articles | Metrics

Construction of GuangdongHongkong Government Web Site of Enterprise ScienceTechnology Information Platform Based on Web2.0 Cao Hong-liu, Yu Jun, Jin Lin-lin 2011, 14 (3):  129-132.  Abstract ( 3583 )   Save The GuangdongHongkong government Web site of enterprise sciencetechnology information platform is constructed in an interactive way. By analyzing the status of the existing enterprise information platforms, problems and drawbacks are discovered. Then, by taking the advantages of Web2.0, Rss, Tag, and Wiki are introduced into the construction of the platform. In this way, a good information platform is constructed by applying advanced technology of Web2.0 and eliminating the drawbacks in the existing platforms. References | Related Articles | Metrics

Optimal Control for a Single Traffic Intersection with Random Arrival Rate Yuan Er-ming1, Li Biao2 2011, 14 (3):  133-136.  Abstract ( 3540 )   Save  Under condition that the cycle time of traffic light switches is relative short, the optimal control problem of traffic light at a single intersection is discussed. The objective is to minimize the expectation of queue length at the end of Kth cycle with K being a given integer. Given the queue length of vehicles from each direction at the initial moment, a queuing model is developed to describe this problem. Then, an efficient algorithm is proposed to solve it. A numerical example is used to verify the effectiveness of the proposed method. References | Related Articles | Metrics

A Visualized E-Kanban System for Small-Batch JIT Production Jin Qing1, Zhang Zhong1, Pan Xue-tao2, Wang Xiao-yu1, Ge Bing1 2011, 14 (3):  137-140.  Abstract ( 3654 )   Save  It is well known that the traditional kanban system is not suitable to multiproduct and smallbatch production. To solve this problem, a new solution called visualization kanban technique is proposed such that justintime (JIT) strategy can be applied to the multiproduct and smallbatch production. As an industrial case problem, this technique is applied to an electronic product production process. For this production process, the new kanban operation flow chart is designed and it works well. The system framework, the key technique and the suitable environment condition are proposed too.Compared with the traditional kanban system, the visualization kanban system has been demonstrated to be more efficient and applicable to multiproduct and smallbatch production. References | Related Articles | Metrics

Study on LED Failure Analysis Method Based on Electronic Device Failure Analysis Theory Zhao Wei1, Wu Fu-gen1, Yang Shao-hua2, Wang Yan1, Xu Zhen-long1 2011, 14 (3):  141-145.  Abstract ( 3571 )   Save In reference to the general electronic device failure analysis method, a systematic LED failure analysis process is proposed. The differences and similarities in package structure, light, and heat transfer characteristics between LED and general electronic devices are analyzed. Based on the analysis, it discovers some failure modes, such as the chip surface pollutants and internal chip faults, that are difficult to be detected by the existing methods. Experiments show that the proposed analysis method is more accurate in judging the LED failure modes and conjecturing the mechanism. Furthermore, this method can effectively avoid new damages which are introduced by destructive analysis. It can also avoid the mistake that takes the damages resulting from the analysis techniques to be the original ones. References | Related Articles | Metrics