Hamidreza Navidi

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Buffer management (BM) is an inventory management methodology introduced by theory of constraints (TOC). In this practice, the retailer passes his demands to the vendor in 'almost a daily manner' and has a 'dynamic inventory buffer' that reflects the change in demand patterns allowing the vendor the opportunity to replenish his inventory and obtain some(More)
Brain Computer Interfaces (BCIs) measure brain signals of brain activity intentionally and unintentionally induced by the user, and thus provide a promising communication channel that does not depend on the brain " s normal output pathway consisting of peripheral nerves and muscles. Present-day Brain Computer Interfaces determine the intent of the user from(More)
The concept of grid computing is getting popular day to day with the emergence of the Internet as a ubiquitous media and the wide spread availability of powerful computers and networks as low-cost commodity components. In these environments requests are served from external users along with local users. Since there are a limited number of resources to be(More)
— Auctions have been widely studied as an efficient approach of allocating spectrum among secondary users in recent years. On the other side, a wide range of frequency bands could be available in a spectrum auction considering the current trend of deregulating wireless resources, therefore, channels provided by the primary users may reside in widely(More)
The present study investigates the Haar-Sinc collocation method for the solution of the hyperbolic partial telegraph equations. The advantages of this technique are that not only is the convergence rate of Sinc approximation exponential but the computational speed also is high due to the use of the Haar operational matrices. This technique is used to(More)