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Briefs: Electronics & Computers
A standard solar array is a flat panel configured of many individual solar cells, wired in series or parallel, depending on their junction configuration and material. Since...
Briefs: Electronics & Computers
Sensors have improved in terms of size, capability, and power consumption, but their deployment in remote areas is limited by battery power supplies. Using piezoelectric (PE) materials for energy...
Briefs: Information Technology
Tool for Turbine Engine Closed-loop Transient Analysis (TTECTrA)
The current steady-state performance-based system studies are not adequate to evaluate certain advanced technologies for the challenges associated with meeting the transient performance requirements without better definition and control of component operating margins. Additional...
Briefs: Information Technology
Wald Sequential Probability Ratio Test for Space Object Conjunction Assessment
When a maneuverable spacecraft confronts a potentially unsafe conjunction with another space object, its operators must decide whether to maneuver to mitigate the risk of a collision. Such decisions may not be straightforward, since the operators must balance their...
Briefs: Information Technology
Next Generation of 3DGRAPE: Flexible Framework for Hypersonic Navier-Stokes Shuttle Orbiter Meshes
The class of 3DGRAPE codes is designed to generate volume grids using iterative methods to solve the non-linear, nonhomogeneous, elliptic partial differential heat equation with heat sources. The solution to the heat equation develops...
Briefs: Information Technology
Delay Tolerant Link State Routing MACHETE Model
This software models the Delay Tolerant Link State Routing protocol. It runs inside the QualNet network simulator, and allows injecting of external bundles when running in emulation mode. It leverages QualNet’s library of networking protocols and JPL’s CCSDS models.
Briefs: Information Technology
Extendable Uniform Remote Operations Planning Architecture (EUROPA) 2.1
The EUROPA planning system is a general-purpose, reusable, artificial intelligence software system for automatically generating plans for performing complex activities in parallel, in accordance with constraints on activities and their interactions. One part of the system input...
Briefs: Software
Acoustic Emission Analysis Applet (AEAA) Software
Vendor software supplied with commercial acoustic emission equipment is incapable of performing the analysis required to characterize damage and make decisions on remaining life for NASA composite overwrapped pressure vessels (COPVs). The Acoustic Emission Analysis Applet (AEAA) software, currently...
Briefs: Information Technology
Software-Defined Beacon Receiver Implementation Using Frequency Estimation Algorithms
The objective of this work was to develop a robust, cost-effective receiver with maximum dynamic range to track the frequency and power variation of a beacon signal. The result was the development of a frequency estimation algorithm that yields a more accurate...
Briefs: Software
CT-CURS: Computed Tomography Cylinder Data Unwrapping-Reslicing & Analysis,
The software for NASA’s Northstar Systems computed tomography (CT) and Picometrix Terahertz CT systems do not have the ability to unwrap and reslice cylindrical CT data to allow top-to-bottom, 2D sheet views of the data. Therefore, it is difficult to size flaws laterally...
Briefs: Information Technology
NTTS Search and Reporting
The NASA Technology Transfer System (NTTS) is a NASA-created technology transfer workflow management system, a schema-less database management system used to track the life-cycle of NASA inventions. It is built on XDB, a NASA homegrown XML database. Because of its schema-less approach to store data, NTTS can host a cluster...
Briefs: Medical
High-Density, Homogenous Bacterial Spore Distributions on Test Surfaces
Thus far, spore transfer had been successful from the polycarbonate membrane onto stainless steel, aluminum, and to some extent, glass. In order to image the endospores under an ESEM (environmental scanning electron microscope), the spores were transferred onto a 4-mm-diameter,...
Briefs: Medical
Team Game and Simulation Control
This technology is an offshoot of LaRC-developed technologies using physiological measures for assessing pilot stress, sustained attention, engagement, and awareness in a laboratory flight simulation environment. The technology allows modulation of player inputs to a video game or simulation from a user interface...
Briefs: Medical
CRP Aptamers to Bone-Specific Alkaline Phosphatase (BAP)
In order to detect and quantify bone-specific alkaline phosphatase (BAP) in a human biological sample, a binding agent (molecule) that specifically recognizes BAP in a sample is typically required. This binding agent can then be used in numerous assays/instruments to enable the detection and...
Briefs: Communications
VCSEL Laser Array for Communications
Optical communications in terrestrial and space environments require transmitted signals on the order of 40 GHz and higher, because of the uncertain and changing transmission environments. A robust communications system is needed that will provide these frequencies and substantial discrimination between...
Briefs: Communications
Providing a Real-Time Audible Message to a Pilot
An aircraft pilot would prefer to receive information on weather patterns, obstructions, and other conditions that may interfere with a flight plan, formal or informal, as the pilot’s flight proceeds, with a latency of no more than a few minutes. Learning of, and reacting to, a changing environment...
Briefs: Communications
Pass Plan Formatter (PPF) for Earth Sciences Ground Support System
The TRMM (Tropical Rainfall Measuring Mission) and Terra ESMO (Earth Science Mission Operations) Ground Systems needed a method of passing scheduling data through the Goddard Mission Services Evolution Center (GMSEC) bus to other subsystems without modifying the Planning and...
Briefs: Communications
Integrated Tool Archives, Extracts, and Analyzes Spacecraft Housekeeping Telemetry Data (GMSEC R3.0)
The Integrated Trending and Plotting System (ITPS) is a comprehensive tool for storage, extraction, analysis, and plots of spacecraft housekeeping telemetry data (GMSEC R3.0 — Goddard Mission Services Evolution Center). ITPS reports information to...
Briefs: Communications
Low-Noise Analog APDs with Impact Ionization Engineering and Negative Feedback
Silicon avalanche photodiodes (Si APDs) have low dark current and low excess noise factor, and are currently used in many of NASA’s missions. Noise equivalent power (NEP) of 40 to 50 fW/(Hz)1/2 over 140-MHz bandwidth has been demonstrated for Si APDs. Si APDs have very...
Briefs: Communications
Method to Improve Wireless System Communication Coverage in a Bended Tunnel Environment
The conventional methods of improving wireless system coverage performance are to increase the transmitter power and/or antenna gain. The high transmit power could lead to more power consumption and RF exposure issues. The use of a high-gain antenna could lead...
Briefs: Software
Space Weather Database of Notifications, Knowledge, Information — DONKI
SW DONKI is a comprehensive Web application for space weather forecasters, scientists, and the general space weather community. It serves as an archive for space weather activities including solar flares, coronal mass ejections (CMEs), solar energetic particles, and...
Briefs: Information Technology
Core Flight System (cFS) Software Bus Network Application Version 1.0
The Software Bus Network (SBN) is a plug-in component developed for the Core Flight System (cFS) framework that extends the core Flight Executive (cFE) Software Bus (SB) publish/subscribe messaging service across partitions, processes, processors, and networks. This extension is...
Briefs: Software
STARS Finite Element Multidisciplinary Analysis Computer Program
An efficient, cost-effective, and unique computer program has been developed that analyzes a variety of practical engineering problems. STructural Analysis Routines (STARS) is a fully integrated, multidisciplinary, finite element-based, graphic-oriented analysis tool that combines...
Briefs: Software
Hazards Analysis Management Tool
The Hazard Analysis Management Tool (HAMT) is comprised of a database and user interface that manages hazard analysis information, manages hazard verifications, and manages relationships between hazard attributes and project elements. The tool offers numerous benefits including the ability for multiple users to...
Briefs: Information Technology
Developing Web and Mobile Applications Integrated with Systems Utilizing the Object Management Group’s Data Distribution Service
Several software application development tools exist that enable the rapid development of Web applications. Among other things, Web applications greatly enhance the human-computer interaction (HCI) required by many...
Briefs: Information Technology
Synthetic Imaging Maneuver Optimization — SIMO
Space-based interferometry missions have the potential to revolutionize imaging and astrometry, providing observations of unprecedented accuracy. Realizing the full potential of these interferometers poses several significant technological challenges. These include the efficient maneuvering of...
Briefs: Sensors/Data Acquisition
Gas and Vapor Sensors on Paper
Sensors on paper have been proposed and fabricated to identify gas or vapors (chemicals). Traditional sensors are based on hard substrates such as silicon. Sensors fabricated on paper are cheaper, foldable, flexible, and bio - degradable. Paper electronics is an emerging area. Logic devices, memory, RFID...
Briefs: Sensors/Data Acquisition
Intelligent Flamefinder Detection and Alert System
While NASA facilities already use huge volumes of hydrogen as a propellant/fuel, many other federal and state programs across the country are looking at potentially expanding the use of hydrogen. There are, however, significant challenges associated with hydrogen use. These include a tendency to...
Briefs: Sensors/Data Acquisition
Load-Indicating Sensor for Lines and Cords
During the development of parachute systems, it is desirable to size the lines correctly, and to pack and deploy the parachute in a manner that produces uniform loading among the lines. Analytical methods would greatly reduce the cost of development; however, test verification is essential. This is...
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