A5017944662- Astro and Planetary Science
- Planetary Science and Exploration
- Geomagnetism and Paleomagnetism Studies
- Dermatological and Skeletal Disorders
- Geometric Analysis and Curvature Flows
- Space Satellite Systems and Control
- Terahertz technology and applications
- Military Strategy and Technology
- CCD and CMOS Imaging Sensors
- Solar and Space Plasma Dynamics
- Scientific Research and Discoveries
- Engineering Education and Pedagogy
- Bone Metabolism and Diseases
- Natural Language Processing Techniques
- Geochemistry and Geologic Mapping
- Spacecraft and Cryogenic Technologies
- Ionosphere and magnetosphere dynamics
- Educational Environments and Student Outcomes
- Nonlinear Partial Differential Equations
- Experimental Learning in Engineering
- Space exploration and regulation
- Digital Holography and Microscopy
- Radio Astronomy Observations and Technology
- Spacecraft Design and Technology
- Technology Assessment and Management
Johns Hopkins University Applied Physics Laboratory
2011-2024
Maxar Technologies (United States)
2024
Rose–Hulman Institute of Technology
2013-2016
Johns Hopkins University
2009-2011
We present a new model of the South Atlantic Anomaly (SAA) particle flux intensity for low Earth orbit, based data set, i.e., noise pulses in an ultraviolet photomultiplier. The set is unique that it provides daily monitoring strength radiation at fixed altitude and local time consistent observations across deep solar minimum. show following: (1) development over decline cycle 23 into minimum subsequent rise 24, (2) slow motion drift SAA centroid with rate—longitude =0.36 ± 0.06°W/yr,...
The CRISM instrument on MRO collected visible-infrared hyperspectral mapping data (HSP; 180 m/pixel, 262 spectral channels covering 365 to 3937 nm) that covered ~39% of Mars. Here we present results from a new processing pipeline for these produces 5° x tiled mosaics overlap the coverage recently released multispectral map tile products (version 4 Multispectral Reduced Data Records, MRDRs; 72 channels). These enable regional investigations into compositional variations require high...
The MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) spacecraft, launched in August 2004 planned for insertion into orbit around Mercury 2011, has already completed two flybys of the innermost planet. Dual Imaging System (MDIS) acquired nearly 2500 images from first viewed portions Mercury's surface not by Mariner 10 1974-1975. proximity to Sun its slow rotation present challenges thermal design a camera on an orbital mission Mercury. In addition, strict limitations...
Department of Homeland Security (DHS) Assistant for Research and development Tracking Technology Transition (DART3) is a web-based implementation designed to capture US Federally funded research (R&D) project descriptions the DHS Cyber Communications (CS&C) R&D requirements use this information plan set transition activities that accelerate deployment relevant results CS&C operational systems.
Cyber security systems are comprised of a wide variety interconnected systems. If these individual not sufficiently designed and implemented to work well when integrated, additional opportunities for adversaries hide attack created. To better enable researchers broaden their scope together, they must be able explore research in other areas across disciplines create standards communication that synergistically. This paper describes Department Homeland Security (DHS) Assistant Research...
Linear algebra students are typically introduced to the problem of how convert from one coordinate system another in a very abstract way. Often, two bases for given vector space provided, and taught determine transition matrix be used changing coordinates. If successful memorizing this mathematical process, then they at completing such problems. However, may not exposed physical interpretation what is accomplished through coordinates, or why desire do so. Based on personal NASA industry...
This paper provides an extension for a function $u \in BV_H(Ω)$ to $u_0 BV_H(G)$ when $Ω$ is ``H-admissible,'' and G step 2 Carnot group. It shown that H-admissible domains include non-characteristic in groups of Heisenberg type which have partial symmetry about characteristic points. An example given domain $C^{1,α}$, $α<1$, not H-admissible. Further, trace theorem proved BV_H(Ω)$.
Security screening system for large crowded venues such as stadium events and air rail transportation hubs have been limited to slow, single person scanning. We present a 3D holographic imaging that operates in the unlicensed 5.8 GHz ISM band can screen crowds of people hidden threat objects. further unique divide-and-conquer algorithm capable efficiently processing system's voluminous data sets search suspicious Current RF systems utilized expensive millimeter wave technology required...