We develop a model to determine an integrated vendor-buyer inventory policy for items with imperfect quality and planned backorders. The production process is imperfect and produces a certain number of defective items with a known probability density function. The vendor delivers the items to the buyer in small lots of equally sized shipments. Upon receipt of the items, the buyer will conduct a...

In this paper, we consider a dual-channel vendor-buyer system consisting of a buyer and two vendor-owned facilities: a central distribution center (DC) and a regional DC. Orders for a single item are delivered through two distinct channels: an indirect channel, comprising the central DC, the regional DC and the buyer; and a direct channel, comprising the central DC and the buyer, bypassing the ...

Digital Image Watermarking is a technique for inserting information into an image that can be later extracted for a variety of purpose including identification, ownership authentication, and copyright protections. The goal of this paper is to design a secure watermarking scheme in spatial domain to identify the true buyer and to protect the ownership copyright of digital still images. The schem...

As the markets of digital contents over computer networks become more popular, illegal redistribution of contents by a buyer becomes the more serious problem. To deter illegal redistribution, various fingerprinting schemes have been proposed. The fingerprinting schemes enable merchants to embed information which identifies the original buyer to the purchased content. Identifying the original bu...

supplier selection is one of the most critical activities of purchasing management in supply chain and managers increasingly face sourcing decisions of how to selected suppliers. this paper illustrates the development of a sourcing decision that provides support for the buyer firm in supply chain.the models developed here, involved selecting between single and dual sourcing. outside and local s...

finally a specific act regarding contracts of the sale of future building ratified in iran, in 89/5/24. this act necessitated getting license for announcement of sale of future, advertisement, ending the construction of the building foundation at the time of the contract, formal contract, specifying the fines for the delay in carrying out the commitments of transferring the gradual possession t...