Policymakers' Summary, 1 st Edition Our Living Oceans: Habitat FOREWORD Our Living Oceans: Habitat. Status of the Habitat of U.S. Living Marine Resources joins editions on living marine resources and economics as the third and final part of the Our Living Oceans publication series. Taken together, the volumes in this series serve as a report card on the state of U.S. living marine resources, th...

This paper investigates the trajectory tracking control problem for underactuated underwater vehicles, which a model is expressed in terms of quasi-velocities arising from inertia matrix decomposition. The approach takes into account non-modeled dynamics and external disturbances suitable symmetric vehicles. It shown that such systems can be diagonalized using inertial (IQVs). strategy consists...

We consider the problem of partitioning an area in the plane populated by a team of aerial/marine vehicles into a finite collection of non-overlapping sets. The sets of this partition are in an one-to-one correspondence with the vehicles under the following rule: each point in the given set of the partition can be reached by the corresponding vehicle in this set faster than any other vehicle in...

In this paper, we study the impact of using a new intelligent vehicle technology on the performance and total cost of a European port, in comparison with existing vehicle systems like trucks. Intelligent autonomous vehicles (IAVs) are a new type of automated guided vehicles (AGVs) with better maneuverability and a special ability to pick up/drop o containers by themselves. To identify the most ...

We consider the problem of partitioning an area in the plane populated by a team of aerial/marine vehicles into a finite collection of non-overlapping sets. The sets of this partition are in an one-to-one correspondence with the vehicles under the following rule: Each point in the given set of the partition can be reached by the corresponding vehicle in this set faster than any other vehicle in...

The Motor Transport Program Office for the U.S. Marine Corps (PM MT) manages the Light Tactical Wheeled Vehicle (TWV) fleet and must make decisions each year about vehicle procurements, overhauls, and retirements. These decisions are based on projected costs to maintain current vehicles, estimates of the remaining useful life of the vehicles, availability of new vehicles and individual vehicle ...

This paper deal with planar motion control of multiple underactuated Remotely Operated Vehicles (ROVs) based on merging of Fuzzy/Lyapunov and kinetic controllers. A cooperative algorithm based on a decentralized planning algorithm which considers the underwater vehicles in an initial open chain configuration is developed. All the planned trajectories are intersections-free, and each trajectory ...

This paper addresses the problem of maintaining an autonomous robotic vehicle in a moving triangular formation by regulating its position with respect to two leader vehicles. The robotic vehicle has no a priori knowledge of the path described by the leaders and its goal is to follow them by constantly regulating the inter-vehicle distances to a desired fixed value, using range-only measurements...

Marine organisms modify the distribution of radioisotopes in the oceanic ecosystem. Various vital processes of plants and animals concentrate elements. The distributions of the biota are often independent of their watery environment; they may actively migrate vertically or horizontally or may remain in place while the water moves past them. In the case of plankton, the concentrating organisms p...