Abstract:We propose to design, build and test an optical extinction monitor for the detection of spacecraft cabin particulates. This monitor will be sensitive to particle sizes ranging from a few nanometer to tens of micrometers in diameter. Designed to utilize commercial off-the-shelf components, the… more
Abstract:Devising a means to reduce the fluence at the image sensor by a factor of 100 would eliminate the threat from all but the largest, cumbersome sources. We propose that the needed fluence reduction can be achieved by operating the existing imager at a strongly defocused setting, and applying… more
Abstract:Ammonia has an important role in the chemistry of the atmospheric environment and air quality. Ammonia emissions are a major environmental concern, yet they remain poorly quantified. There is a need for a sensitive ammonia instrument to monitor emissions and evaluate their effects on the local and… more
Abstract:The objective of this work is to develop a compact, robust process that reduces the sulfur content of jet fuel to less than 10 ppm prior to its reformation and use in a solid oxide fuel cell (SOFC) fuel cell. The target power range of the SOFC is 2 kW. In addition to military applications, the… more
Abstract:ARI is developing an aircraft exhaust sampling system that transitions condensable species to the condensed phase in a manner that mimics what happens when the exhaust is emitted into the atmosphere. Standard engine-exit plane measurements are not suitable for these volatile particles because they… more
Abstract:Aerosol particles have important impacts on visibility, acid deposition, human health, and climate. A large fraction of the anthropogenic aerosol is generated from energy-related activities known to contribute a significant fraction of ambient aerosol mass in many locations. Black carbon, formed in… more
Abstract:Cooperative targeting technologies enable F18 strike aircraft and tactical UASs (Unmanned Aircraft Systems) to work together to provide close air support, particularly in close-quarters urban combat. VRAI ("Variable Remapping of Airborne Imagery") ties together these assets more effectively,… more
Abstract:Aerosol particles affect the radiative balance of the earth directly, by scattering and absorbing solar and terrestrial radiation, and, indirectly, by acting as cloud condensation nuclei. It is now recognized that the atmospheric loading of aerosols generated through human activities can exert an… more
Abstract:Aerosol particles have important impacts on visibility, acid deposition, climate, and human health, although large uncertainties remain in quantifying their chemical composition and atmospheric transformations. However, of the organic aerosol mass, only a small fraction has been compositionally… more
Abstract:The increase of carbon dioxide (CO2) in the Earth¿s atmosphere is the most important driver of global warming. In order to predict future carbon dioxide concentrations under various mitigation strategies, a better quantitative understanding of the sources and sinks of atmospheric carbon dioxide is… more
Abstract:Methane (CH4) is the second most important atmospheric greenhouse gas after CO2, yet its global sources and sinks are still inadequately characterized. Monitoring the isotopic composition of atmospheric methane is one of the most promising approaches to closing the methane budget. Recent claims… more
Abstract:Aerosol particles have important impacts on visibility, acid deposition, climate, and human health. A large fraction of the anthropogenic aerosol is generated from energy-related activities, and organic compounds are known to constitute a significant fraction of ambient aerosol mass in many… more
Abstract:DESCRIPTION (provided by applicant): Cerebral edema (and its counterpart in the spinal cord) is a major contributor to the damage caused by stroke, traumatic brain injury, traumatic spinal-cord injury, and bacterial meningitis. Stroke alone is the third le
ading cause of death in the USA and the… more
Abstract:Mobile Software Defined Radios (SDRs) of the future will require wideband capability, complete radio reprogramability, and the ability to function in the mobile, low power environment. To meet these sometimes conflicting requirements innovative components will need to be integrated into innovative… more
Abstract:Worldwide fossil-fuel consumption is skyrocketing ¿ creating major social, political, economic, and environmental problems for the U.S. ¿ and once again revealing the urgent need to boost renewable energy sources, including biodiesel. However, key technical and economic challenges continue to… more
Abstract:Because of its condensable nature Bi may cause unacceptable spacecraft contamination when used as a Hall thruster propellant. Experiments are proposed to determine the potential for bismuth deposition on spacecraft surfaces. The proposing team's extensive experience with bismuth technology has… more
Abstract:The Local Space Imaging System (LSIS) proposed here will be capable of continuous, autonomous situational awareness of the local space about a high-value host spacecraft with minimal impact to the host. The LSIS can independently determine instrument inertial attitude and bring a high-resolution… more
Abstract:AeroSoft proposes to develop a full featured CFD toolkit
for analysis of the aerothermal environment and its effect
on space vehicles. In Phase I, AeroSoft proposes to implement
multi-component ablation along with material response into
AeroSoft's structured and unstructured CFD solver GASP. … more
Abstract:Semivolatile organic matter is pervasive in the atmosphere. Its effect on the radiation balance of the earth depends on how this material is partitioned between the vapor and particle phases. Yet, no currently available instrumentation provides simultaneous, quantitative measurement of… more
Abstract:Atmospheric entry is one of the most critical phases of flight during planetary exploration missions. During the design of an entry vehicle, experimental and analytical methods are used; however, the current integration level of experimental and analytical methods with planetary entry simulations is… more
Abstract:In situ wind and turbulence measurements play a key role in the support and validation of Earth science missions using spaced-based technology. NASA has been using Unmanned Aerial Vehicles (UAVs) in support of these Earth science missions, but the current UAVs do not have sensor packages to make… more
Abstract:Every day, turbulence has an adverse effect on aircraft operations and capacity of the NAS, costing the airline industry at least $100 million annually in delays, operational inefficiencies, and injuries. There is a need to research and develop traffic flow and ATM methods that mitigate the… more
Abstract:The proposing team will develop a practical, complete Autonomous UAS Detect, Sense, and Avoid (AU-DSA) system for safe and effective UAS operations within the National Airspace System (NAS) and outside of Special Use Airspace. The AU-DSA will incorporate a compact, flexible, state-of-the-art… more
Abstract:Aerotonomy, Incorporated, the Georgia Tech Research Institute, and the Boeing Company propose here to continue work towards the development of commercially viable enabling technologies for a Cruise Efficient, ESTOL-capable Transport Aircraft (CEETA). Results of the Phase I effort provide a broad,… more
Abstract:The proposing team will continue the development, testing, and productization of a Small, Image-aided Navigation and Autonomous Path-planning System (SINAPS) for UAVs. The SINAPS utilizes a capable suite of sensors together with state-of-the-art computing to enable real-time autonomous sensing and… more
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