US Navy Global and Regional Wave Modeling

Ventilation Systems, US NAVY SHIPS

Shipboard ventilation systems supply and remove air to/from spaces throughout the ship. In doing so, these systems control quality of breathing air and protect personnel and sensitive equipment from potentially hazardous airborne contaminants, fires, explosions, and excessive heat. The ability of ventilation systems to protect personnel from these hazards is particularly important aboard Navy s...

Field measurements and modeling of dilution in the wake of a US navy frigate.

A field measurement and computer modeling effort was made to assess the dilution field of pulped waste materials discharged into the wake of a US Navy frigate. Pulped paper and fluorescein dye were discharged from the frigate's pulper at known rates. The subsequent particle and dye concentration field was then measured throughout the wake by a following vessel using multiple independent measure...

Global-to-regional-scale Climate Modeling

long recognized.3-5 Consequently, there has been a growing interest in investigating what changes in air quality may be brought about by the possible future changes in climate. The common assumption has been that warmer temperatures accompanying climate change will enhance pollution. However, due to the complex interplay of meteorology and chemistry in the formation of pollutants such as PM2.5 ...

Optimized Estimation of Global and Regional Aortic Pulse Wave Velocity

Introduction: Pulse wave velocity (PWV) as a measure of aortic stiffness is an important clinical marker for the presence of atherosclerosis [1,2]. For PWV estimation using Phase contrast (PC) MRI transit-time (TT) methods have been employed which estimate temporal differences in flow waveforms between two locations in the vessel with known distance [3]. However, precision was limited by the ac...

Iran's Role In Energy Security At Regional And Global Levels