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Briefs: Information Technology
Explicitly Filtered Large Eddy Simulation for Prediction of a Conserved Scalar
The prediction of a conserved scalar is important in many fields of study. For example, in modeling of combustion processes, if a conserved scalar exists, the mathematical problem can be greatly simplified. Inert gases transported in mixtures of other gases are also...
Briefs: Software
Dictionary Management System
The Dictionary Management System (DMS) is a Web-based tool to develop and store a project command and telemetry dictionary. The dictionary defines a project’s flight/ground interface. In recent years, dictionaries have become very large, making it hard to maintain traditional methods of flat-file storage and manual...
Briefs: Information Technology
National Vulnerability Database (NVD) Query Tool
Currently, there are no programmatic methods to query the NIST National Vulnerability Database (NVD) without downloading the entire database in XML format, parsing the content, loading the resulting data into a self-hosted database, and then developing an interface for querying the content. This tool...
Briefs: Test & Measurement
The deleterious effects of microgravity are undeniable: reduced bone mineral density, muscle atrophy, vascular remodeling, etc. These health issues...
Briefs: Test & Measurement
The primary function of a window is to allow observation of, and protection from, a potentially hazardous environment. Yet, from the window designer’s point of view,...
Briefs: Test & Measurement
Measurement of O-phthalaldehyde (OPA)
O-phthalaldehyde (OPA) is a high-level disinfectant commonly used, for example, for sterilization of heat-sensitive medical instruments; it demonstrates effective microbicidal activity against a wide range of microorganisms (including mycobacteria, gramnegative bacteria, and spores). On the International Space...
Briefs: Test & Measurement
Fire safety in space vehicles is of utmost importance, especially for manned flight. On the International Space Station (ISS), events that may lead to fires, especially smoldering, must be...
Briefs: Test & Measurement
Decomposition Technique for Remaining Useful Life Prediction
Technology has been developed that provides a way to compute the remaining useful life (RUL) of a component or system. The estimation of the RUL of a degraded or faulty component is at the center of condition-based maintenance, and prognostics and health management. It gives operators a...
Briefs: Test & Measurement
Researchers at NASA’s Armstrong Flight Research Center have developed and tested a new strain gage that makes significant strides in the state of the art, particularly salient given the...
Briefs: Manufacturing & Prototyping
Additive manufacturing (AM, also informally known as 3D printing) is a relatively new process for fabricating net- shaped parts from a...
Briefs: Manufacturing & Prototyping
Manufacturing reliable, high-performing parts and components that have extended lifecycles is crucial for the pneumatics and hydraulics industry. From springs to fittings, the performance of each...
Briefs: Electronics & Computers
NUMIT2.0
Internal electrostatic discharge (IESD) can cause spacecraft failure and anomalies related to the space environment, but it is very hard to predict when IESD might happen. Therefore, assessment of the IESD at a given space environment and a given dielectric geometry is important for spacecraft reliability.
Briefs: Manufacturing & Prototyping
Reusable Integrated Instrument Control and Computing Platform
ISAAC (Instrument Shared Artifact for Computing) offers adaptability, computation power, I/O bandwidth, digital interface standards, and data processing capability in a single, common, low-mass/power, and small-form-factor platform with significantly reduced, nonrecurring cost and risk...
Briefs: Electronics & Computers
Next-generation synthetic aperture radar (SAR) remote sensing platforms utilize new concepts such as the SweepSAR techniques that provide increased swath size, high...
Briefs: Electronics & Computers
Eliminating Wires in Making Electrical Connections to a Stack of Electron and Ion Optical Components
Making electrical connections inside a vacuum chamber to a stack of electron and ion optical components using the conventional approach of...
Briefs: Electronics & Computers
Graphene Composite Materials for Supercapacitor Electrodes
In recent years, electrochemical capacitors, or supercapacitors, have gained the most intense interest as an alternative to traditional energy storage devices such as batteries. The demands of the potential supercapacitor applications range from plug-in hybrid electric vehicles (PHEVs) to...
Briefs: Electronics & Computers
Integrated, Radiation-Hardened Radio Frequency Digitizer and Signal Processing Electronics
Imaging LiDAR systems such as Goddard’s Reconfigurable Solid-state LiDAR (GRSSLi) must collect and process reflected pulses of light in order to correctly assemble a three-dimensional image of the scene. These pulses of light generally range from 2-5...
Briefs: Photonics/Optics
Every lens has an absolute upper performance limit dictated by the laws of physics. This limitation is controlled by the working f/# of the lens and the wavelength( s) of light that pass through the lens....
Briefs: Photonics/Optics
Megahertz-Rate Molecular Tagging Velocimetry
In recent years, a large number of Lagrangian-based optical velocimetry techniques have been developed that are known, collectively, as either flow tagging velocimetry or molecular tagging velocimetry. In either case, the method is based on the use of an optical resonance to “tag” a pattern into a...
Briefs: Green Design & Manufacturing
A method was developed that allows water recycling, air treatment, thermal control, and solid residuals treatment and recycle to be removed from the usable habitat volume...
Briefs: Mechanical & Fluid Systems
Novel Feedthrough for Instrumentation Lead Wires
This invention is a method and design for the conveyance of instrumentation lead wires from one pressure boundary to another pressure boundary in cryogenic process systems. Such a device or article is commonly referred to as a feedthrough. The novelty of the present invention is the extreme...
Briefs: Mechanical & Fluid Systems
Pneumatic Conveying of Lunar Regolith Simulant
Planetary regolith (dust) is an aggregation of various minerals and different particle sizes. Collection, storage, processing, and disposal of this material are very challenging in the harsh planetary environment. Extraterrestrial operations involving In-Situ Resource Utilization (ISRU) require...
Briefs: Mechanical & Fluid Systems
Researchers at NASA’s Armstrong Flight Research Center have developed an innovative antenna-mounting platform that addresses an unmet need in the unmanned...
Briefs: Sensors/Data Acquisition
Position feedback sensors for hydraulic or pneumatic cylinders have used one of three traditional technologies: magnetostrictive, variable resistance, and variable inductance. As the...
Briefs: Sensors/Data Acquisition
Detection of Gases and Vapors Present at Low Concentrations
A nanostructure-based mechanism was developed for sensing the presence of, and estimating concentration values of, specified chemical components in a sample gas to which the mechanism is exposed, where the concentrations may be as low as five parts per billion. The mechanism receives a...
Briefs: Sensors/Data Acquisition
Broadband Photon-Counting Microwave Kinetic Inductance Detector
The planar Microwave Kinetic Inductance Detector (MKID) is very compact and allows a large number of detectors to be fabricated simultaneously and implemented in a focal plane of a telescope using a minimal number of wiring interfaces. In this detector, the incident power is guided...
Briefs: Sensors/Data Acquisition
Micro-LIDAR for Flow Velocimetry
A miniature light detection and ranging (LIDAR) velocimetry sensor has been developed to analyze high-velocity and boundary layer flows in real-world conditions. Using Rayleigh scattering, as opposed to the more common particle scattering, the patent-pending sensors provide multiple flow parameters without the need...
Briefs: Sensors/Data Acquisition
Sensitive, Specific Molecular Detection of Single Bacteria Cells
A unique amplification chemistry was developed that allows highly specific isothermal detection of bacteria, and presumably eukaryotic cells, at sub-single-cell sensitivities. This is based on the ability to detect rRNA (ribosomal RNA) rather than DNA, as is typical. The difference is...
Briefs: Sensors/Data Acquisition
Optical Hotspot Conductive Fluid Flow Sensor
The Optical Hotspot Flow Sensor (OHFS) enables optical measurement of electrically conductive liquid metal flow rate by exploiting the electrically conductive nature of liquid metals or any other conductive fluid to enable thermal tagging of liquid flow in tubes (US Patent 7,409,875). It is well suited...
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