Abstract:Hydrogen peroxide formation represents a loss of gas phase HOx and results in the transfer of atmospheric oxidative capacity to the liquid phase. Measurements of formaldehyde and H2O2 are vital to fully elucidate the atmospheric mechanisms associated with ozone formation and the formation of… more
Abstract:An important and fundamental challenge in science and engineering is the need to understand the system output variables (model predictions, measured observables) and their relation to the system¿¿s input variables (model inputs, specified experimental conditions). This project proposes to address… more
Abstract:DESCRIPTION (provided by applicant): The analysis of components in human breath is a powerful non-invasive technique for the diagnosis and monitoring of asthma, cystic fibrosis (CF) and chronic obstructive pulmonary disease (COPD). The presence of elevated levels of nitric oxide (NO), carbon… more
Abstract:The USDA recognizes the need for improved instrumentation to monitor atmospheric ammonia which is a major environmental concern and a health hazard. Ammonia is a public health concern at high levels, as can be found in animal feed lots. At low levels, ammonia is a source of particulates which are… more
Abstract:A need exists to determine the true chemical composition of the exhaust gases from aircraft engines, aircraft combustors and rocket engines. Measurements of these high-speed reacting flows are important for determining the combustion efficiency of these devices and guiding efforts to engineer… more
Abstract:A novel type of fuel providing high burning rate for hybrid rocket applications is proposed. This fuel maintains a hydrodynamically rough surface to radically enhance convective heat transfer rate, and hence the fuel burn rate. This is achieved by incorporating a particulate fuel material… more
Abstract:An electric power source is needed that is two-man portable or lighter, operates on logistics fuels (JP-8, diesel), is quiet, and has a low thermal signature. We propose the MICE (Miniature Internal Combustion Engine) generator that is currently being developed by Aerodyne Research to deliver 500 W… more
Abstract:Communications security (COMSEC) role in space continues to grow as the available bandwidth expands. The DOD Transformation Communications (TC) vision will transform the space, air and ground networks into a fully integrated internet like network. This vision requires cryptographic architectures… more
Abstract:Recently our group successfully developed a Digital Particle Image Velocimetry with a sampling frequency as high as 10,000 fps capable of resolving poly-dispersed multi-phase flows simultaneously for all phases present in the flow field. We were successful in developing very sophisticated image… more
Abstract:Limitations of conventional hinged aerodynamic platform controls have sparked interest in new "hingeless" systems, where control is effected through use of synthetic jet actuators and pneumatic circulation control. These new systems' advantages are augmentation of the conventional flight control… more
Abstract:AeroSoft proposes to develop an application programming interface (API) to connect single-physics based analysis tools used in thermal protection system (TPS) sizing and assessment for trajectory-shaping and reentry vehicles. The API will be based on the message passing interface (MPI) program to… more
Abstract:A compact and affordable, microchip-based system for the automated, in situ analysis of inorganic ions in atmospheric aerosols will be develop and verified against traditional, filter-based methods. Our approach combines tow new technologies: (1) a growth tube impactor for particle collection and… more
Abstract:78167S05 Airborne particles significantly influence the radiative budget of the earth's atmosphere through direct scattering and absorption of solar and thermal infrared radiation, and through modification of the earth's cloud cover. Important to these effects is the aerosol size distribution and… more
Abstract:79160 Organic matter is a major constituent of airborne particles, comprising 20-50% of the PM2.5 mass in many regions; yet, its characterization is difficult. Especially important is the real-time characterization of organic matter at the molecular level. To better understand the effects of… more
Abstract:A hardware platform is proposed for a low-cost miniature quickscan receiver to operate in the range of 30.000 MHz to 3.000 GHz. The platform consists of a multiplicity of Digital Signal Processors connected in a microprocessor array to perform detection and monitoring of battlefield radio activity.
Abstract:Aircraft encounters with turbulence are the leading cause of injuries in the airline industry and result in significant human, operational, and maintenance costs to the airline community each year. A large contributor to the above injuries and costs is that flight crews do not have sufficient… more
Abstract:Aerotonomy, Incorporated (AI) and subcontractor Georgia Tech Research Institute (GTRI) will apply the latest knowledge in circulation control and piezo-electric synthetic (zero net mass flux) jet actuators (SJAs) to develop a practical small UAV with no hinged control surfaces. In the area of flow… more
Abstract:Aerotonomy, Incorporated and our Research Institution partner the Georgia Institute of Technology (GIT) will combine an innovative adaptive guidance system, the latest knowledge in autonomous adaptive rotorcraft control, and intuitive pilot interface techniques to arrive at a safe, practical,… more
Abstract:Aerotonomy, Incorporated and our research institution partner Georgia Tech Research Institute (GTRI) will apply the latest knowledge in conformal load bearing antenna design, structural and electromagnetic modeling, and optimization techniques to develop a unique 2 Stage Multi-Disciplinary… more
Abstract:The feasibility of producing robust miniaturized, broadly tunable mm-wave bandpass filters for space applications is discussed. Current work by the authors has demonstrated very high-Q, broadly tunable "Octave+T" resonators in the 1.2 Ghz to 5.0 Ghz frequency ranges. These resonators have been… more
Abstract:Optimized preventative maintenance schedules and in-situ monitoring of vehicle fluid conditions are essential for vehicle reliability, especially when operating in extreme conditions. In the particular case of engine oil, while many types of sensors exist, none directly measure in real time the… more
Abstract:The current situation in Iraq is making it extremely clear that the urban environment is a chaotic and dangerous battle space. Currently available technology cannot provide the level of real-time situational awareness needed by each individual soldier. DARPA has determined that Sparse Conformal… more
Abstract:The overall goal of the Sensors Directorate is to be the "Eyes and Ears of the Warfighter". The development of sensing technology has focused primarily on the extension of the sense of sight, e.g., the use of radar, infrared, E/O and laser technologies; while relatively little effort has been… more
Abstract:Rotating machinery is used in industrial applications, both in the US military and civilian worlds. Monitoring the health of this equipment is vital for uninterrupted operations; in a continuous-process plant, machinery downtime is very expensive. Unfortunately, machinery health is now monitored… more
Abstract:We are developing integrated ultra-wideband transceivers, called Localizers, for precise position location and low datarate communication. Localizers determine location by sharing range information within a network of units distributed in the environment. The range between pairs of Localizers is… more
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