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Carbon fiber/bismaleimide composites have received increasing interest, owing to their excellent properties, especially their toughness under extreme working conditions. We established a micromechanical model for a finite element simulation of the micro-droplet test, which involves pulling a carbon fiber out of a bead of matrix using two moving knives acting on the bead as scrapers to quantify the...
Carbon fiber/bismaleimide composites have received increasing interest, owing to their excellent properties, especially their toughness under extreme working conditions. We established a micromechanical model for a finite element simulation of the micro-droplet test, which involves pulling a carbon fiber out of a bead of matrix using two moving knives acting on the bead as scrapers to quantify the...
This paper compares Bertrand and Cournot equilibria in a differentiated duopoly with linear demand, and asymmetric constant marginal cost under endogenous timing. It shows that endogenous timing leads to two sequential play with both leader–follower configurations in Bertrand, but simultaneous play in Cournot. Moreover, every firm’s mark-up/output ratio and the two firms’ weighted ‘average’ price...
This paper presents the theory of dynamic sequential auctions which can be used for pricing and inventory control in online auction. Most theoretical treatments of auctions have assumed that buyers have unit demand, which didn't conform to the real state. We characterize this model when a seller with C units to sell by the way of sequential auctions faces a finite time horizon T, buyers in each period...
Optimal design of auction is one of hot research topics in the auction theory. During recent years, shill bidding has increased substantially with the explosion in the number of online auctions. This paper designs the optimal online auction with shill bidding and open reserve price. Many optimal auction models have assumed that the number of potential bidders is constant and known. And in these optimal...
As the rapid development of e-commerce, online auction has taken more and more proportion in the business. In online auction, bidders bid for a good on the Internet, which makes it difficult to find and bound the bidders' action, so cheating, say shilling by the seller, has become a popularity in online auction. Because it is so easy for a seller to bid in an online auction, then how to resist shill...
In the usual implementation problem agents are asked to play a game form-a mechanism which is designed by the planner and the outcome is determined by the outcome function of the mechanism. In the problem the planner can force agents to play the game, but she has to obey her commitment to the agents, thus she cannot change but have to accept the outcome. In this paper we study the situation where...
Optimal design of auction is one of hot research topics in the auction theory. In this paper, we design this online auction mechanism, by considering simultaneously the bidders' stochastic arrival process, entry fee, which is proportional to the reserve price seller, commission rates, which is proportional to the ultimate winning price from the seller if the item is auctioned off successfully, buy-in...
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