OBJECTIVE To demonstrate the effect of including both principal and secondary injuries in the calculation of national estimates of non-fatal motor vehicle-related injury, using the National Electronic Injury Surveillance System-All Injury Program (NEISS-AIP). METHODS The setting was a stratified sample of 15 US hospital emergency departments selected among 50 NEISS-AIP hospitals which agreed ...

In the well-known Vehicle Routing Problem (VRP) a set of identical vehicles located at a central depot is to be optimally routed to supply customers with known demands subject to vehicle capacity constraints. An important variant of the VRP arises when a mixed fleet of vehicles, characterized by different capacities and costs, is available for distribution activities. The problem is known as Fl...

In this presentation, we consider the Split Delivery Vehicle Routing Problem with Time Windows (SDVRPTW) in which the delivery to a customer can be split between any number of vehicles. This problem has not been extensively studied in the literature. The main contribution of this paper is a Branch and Price approach for solving the SDVRPTW without imposing restrictions on the split delivery opt...

Using a structural VAR with block exogeneity, diagonality and identifying restrictions, this paper analyzes: first, the macroeconomic linkages among the oil price, U.S. output, interest rate, money supply, general price level and exchange rate and second, the relationships of the macroeconomic variables with the price indices of ten international nonfuel commodity groups. By assuming the block ...

The growth of civil and military use has recently promoted the development of unmanned miniature aerial vehicles dedicated to surveillance tasks. These flying vehicles are often capable of carrying only a few dozen gramms of payload. To achieve autonomy for this kind of aircraft novel sensors are required, which need to cope with strictly limited onboard processing power. One of the key aspects...

In this paper we introduce a 'vehicle tracking' task, which tests the ability of a driver to track the location of multiple vehicles on the roadway. Based on the 'multiple object tracking' task (Pylyshyn & Storm, 1988), the vehicle tracking task presents the driver with an array of identical vehicles immediately in front of the subject vehicle. The task consists of three distinct stages: encodi...

This paper examines the single-commodity stochastic network design problem with multiple sources and sinks. We characterize the structures of the optimal designs and compare with the deterministic counterparts. We do this primarily to understand what constitutes good robust network designs, but hope that the understanding can also be used to develop better heuristic algorithms than those availa...

There are two underlying principles that guide how a vehicular ad hoc network (VANET) is built: there will be misbehavior and the extent to which vehicles can misbehave should be bounded. Additionally, the main use for VANETs currently is to enable safety applications where vehicles’ position, velocity, and acceleration are broadcast to other vehicles in the VANET. Combining these guiding princ...

Purpose: discuss actual application value of the diffusion theory in massive electric vehicle charging load; Method: introduce single vehicle charging process, extend it to charging process of two and multiple electric vehicles, abstract physical process of parallel charging of electric vehicles, introduce energy block concept and diffusion theory, and establish diffusion charging model of elec...

Mathematical modeling of supply chain operations has proven to be one of the most complex tasks in the field of operations management and operations research. Despite the abundance of several modeling proposals in the literature; for vast majority of them, no effective universal application is conceived. This issue renders the proposed mathematical models inapplicable due largely to the fact th...