Regulating Airmail Transportation

AIRMAIL: a link-layer protocol for wireless networks

This paper describes the design and performance of a link-layer protocol for indoor and outdoor wireless networks. The protocol is asymmetric to reduce the processing load at the mobile, reliability is established by a combination of automatic repeat request and forward error correction, and link-layer packets are transferred appropriately during handoffs. The protocol is named AIRMAIL (Asymmet...

Fuzzy Transportation Problem with Random Transportation Costs

We consider the following transportation problem with both random and fuzzy factors. There exist m supply points and n demand points. For each route between supply point and demand point, unit transportation cost is a random variable according to a normal distribution and existence possibility denoting the preference choosing this route is attached. The probability that the total transportation...

Regulating research, regulating professionals.

This issue sees the publication of the first in a series of six articles about alleged research misconduct. Rarely does one feel so moved and disturbed by a collection of articles in an academic journal. All take as their focus the trial of continuous negative extrathoracic pressure (CNEP) for treatment of preterm infants with respiratory failure at North Staffordshire hospital in the UK, which...

Fully Fuzzy Transportation Problem

Transportation problem is a linear programming which considers minimum cost for shipping a product from some origins to other destinations such as from factories to warehouse, or from a warehouse to supermarkets. To solve this problem simplex algorithmis utilized. In real projects costs and the value of supply and demands are fuzzy numbers and it is expected that optimal solutions for determini...

Transportation hazards