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Wang S.-D.,Hefei Electronic Engineering Institute | Wang S.-D.,Hefei University of Technology | Zhou Y.-W.,South China University of Technology
Computers and Industrial Engineering | Year: 2010

This paper discusses production and order as well as advertising coordination issues in a single-manufacturer single-buyer supply chain, where the manufacturer sells a newsvendor-type product through the buyer who faces a random demand depending on advertising expenditure. Before the start of the selling period, the buyer needs to determine how much she should invest in advertising and how many units of products she should order from the manufacturer. By the end of the season, if the revealed demand exceeds stock on hand, the buyer has an opportunity to place a second order from manufacturer to meet part of the unfilled demand. The ordered items are produced by the manufacturer in two production modes for different requirements. Under such a setting, the centralized and decentralized decision models are developed respectively, and the closed form solution to each model is provided as well. An improved revenue-sharing contract is proposed to achieve the supply chain coordination. © 2010 Elsevier Ltd. All rights reserved. Source


Yin C.,Hefei Electronic Engineering Institute | Hu M.,Branch Team 91
International Journal of Antennas and Propagation | Year: 2012

Firstly, a domain-division solution is provided in this paper, which can solve Hankel function's singular problem of Sommerfeld integral in calculating the spatial domain Green function for cylindrically stratified media and realize the computation for all elements of Z-matrix in the method of moment. Then, the arbitrary shape cylindrical conformal microstrip antenna (CCMA) fed by microstripline is theoretically analysed using the RWG basis function. Numerical results are presented in the form of mutual coupling between two current modes and electromagnetic characteristics of a CCMA fed by microstripline. The results show that, comparing with the planar counterpart microstrip antenna, the reflection coefficient of the CCMA increases, the current on the microstripline varies sharply, and the backward radiation field appears. However, the frontward radiation field of the CCMA is similar to the planar case. © 2012 Chengyou Yin and Mengzhong Hu. Source


Wang S.-D.,Hefei University of Technology | Wang S.-D.,Hefei Electronic Engineering Institute | Zhou Y.-W.,South China University of Technology | Min J.,Anhui Institute of Architecture and Industry | Zhong Y.-G.,South China University of Technology
Computers and Industrial Engineering | Year: 2011

This paper considers cooperative advertising issues of a monopolistic manufacturer with competing duopolistic retailers. Four possible game structures (or power configurations), i.e., Stackelberg-Cournot, Stackelberg-Collusion, Nash-Cournot and Nash-Collusion, are discussed. Under each of four game structures, we develop a decision model for the three partners to design the optimal cooperative advertising policies. Through a comparison among the four models, we reveal how cooperative advertising policies and profits of all participants are affected by various competitive behaviors, and then determine whether the partners have any incentives to transit to a different structure. Also presented in the paper are a centralized decision model and a proposed cost-sharing contract, which is able to achieve perfect coordination of the considered channel, where the utility of risk preference is used to determine the fraction of local advertising costs shared by the manufacturer. © 2011 Elsevier Ltd. All rights reserved. Source


Wang S.-D.,Hefei Electronic Engineering Institute | Wang S.-D.,Hefei University of Technology | Zhou Y.-W.,South China University of Technology | Wang J.-P.,Hefei University of Technology
International Journal of Systems Science | Year: 2010

This article discusses production and order as well as advertising coordination issues in a single-manufacturer single-buyer supply chain, where the manufacturer sells a newsvendor-type product through the buyer who faces a random demand depending on advertising expenditure and selling price. The buyer has two ordering opportunities: the one happens before the beginning of the season, and the other takes place at the end of the season. The ordered items are produced by the manufacturer in two production modes for different requirements. The first production mode is relatively cheap but requires a long lead-time, whereas the second is expensive but offers quick response. Under such a setting, the centralised and decentralised decision models are developed, respectively, and the closed form solution to each model is provided as well. Moreover, we point out that the traditional revenue-sharing contract fails to coordinate the supply chain. We thus propose an improved revenue-sharing contract that requests the manufacturer not only shares the buyer's revenue but also bears a portion of the buyer's operating costs. Such a contract can achieve perfect coordination of the supply chain and arbitrarily allocate its profit between two parties. © 2010 Taylor & Francis. Source


Wu W.,Hefei Electronic Engineering Institute
Applied Mechanics and Materials | Year: 2012

The index system of communication EW equipment's Reliability can be qualitative and quantitative and multi-hierarchic.The method is used to evaluate communication EW equipment's Reliability, which combines EAHP and fuzzy synthetic evaluation. Examples indicate that the method is feasible. © (2012) Trans Tech Publications, Switzerland. Source

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