Tech Briefs

Electronics & Software

Access our comprehensive library of technical briefs on electronics and software, from engineering experts at NASA and major government, university, and commercial laboratories.

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Briefs: Software
Using SysML to Model Layered System Interfaces
To produce accurate system architecture descriptions, it is essential to be able to describe interfaces between system elements at different levels of abstraction and from different perspectives at the same time. For example, the connection from system A to system B may be viewed at a high level as...
Briefs: Software
Pegasus 5.2 Software for Automated Pre-Processing of Overset CFD Grids
Pegasus software is used as a pre-processor for overset-grid Computational Fluid Dynamics (CFD) simulations. It provides the hole-cutting and connectivity information between structured overset grids. The main features of the software include automated hole-cutting algorithms, a...
Briefs: Software
Software Suite for Identifying Suspicious Individuals
It can be very useful to know about activities among individuals; for example, which individuals are associated with other individuals? When two or more individuals get together, is there an intended purpose? Who are the leaders or important individuals of a group? What is the organizational...
Briefs: Electronics & Computers
Printed electronics must be heated to melt all the nanoparticles together into a single conductive wire, making it impossible to print circuits on inexpensive plastics or paper. A study...
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Briefs: Software
The Automated Impacts Routing (AIR) software is advanced route finding technology for air and ground vehicles. The software provides users the ability to find optimized paths through airspace...
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Briefs: Software
Automated Transfer Function Generator
When designing or analyzing electrical systems, it is important to understand the relationship between input and output. Power conversion occurs in a “black box,” and transfer functions can be used to provide a better understanding of the processes occurring in this black box. Although they provide a useful...
Briefs: Electronics & Computers
Electrically Conducting Nanoscale Sheets for Reconfigurable Electronics
Almost all aspects of modern life, such as communications and healthcare, depend on microelectronic devices. The demand for more powerful, smaller technology keeps growing, meaning that the tiniest devices are now composed of just a few atoms. One way to solve the problem of...
Briefs: Software
Python Interface to Dual-Pol Radar Algorithms (DualPol)
This object-oriented Python module facilitates precipitation retrievals (e.g., hydrometeor type, precipitation rate, precipitation mass, particle size distribution) from polarimetric radar data. It leverages existing open-source radar software packages to perform all-in-one retrievals that are...
Briefs: Software
Sound Lab (SLAB) Version 5
Interest in the simulation of acoustic environments has prompted a number of technology development efforts over the years for applications such as auralization of concert halls and listening rooms, spatial information displays in aviation, virtual reality, and better sound effects for video games. Each of these...
Briefs: Materials
Solar fuels are created using only sunlight, water, and carbon dioxide (CO2). Researchers are exploring a range of target fuels, from hydrogen gas to liquid hydrocarbons, but producing any of these...
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Briefs: Software
CornerStone Knowledge Acquisition and Synthesis Framework
In general, and especially in the “big data” era, there is often a failure to collect sufficient data about the data (metadata). This lack of metadata drastically reduces the potential use of the data, and the attempt to rectify this situation after the fact is often difficult, if not...
Briefs: Software
Graph analytics is a way of facilitating guided graph exploration through visual and interactive means. Unlike many graph visualization research efforts that focus predominantly on layout algorithms and rendering...
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Briefs: Electronics & Computers
Fields ranging from autonomous driving to personalized medicine are generating huge amounts of data. But just as the flood of data is reaching massive proportions, the ability of computer chips to...
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Briefs: Electronics & Computers
Front-end electronics for capacitive sensors typically include a preamplifier followed by a filter. The preamplifier provides low-noise amplification of the signals induced in the sensor electrodes....
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Briefs: Software
Software-Defined Networking (SDN) usually requires network administrators to be skilled in programming languages such as C++, Python, or Ruby. Many IT operators tasked with...
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Briefs: Software
Robust Method for Data Protection and Change Detection
Methods exist for processing an original data sequence in order to generate information about the data for the purposes of integrity measurement, ownership demonstration, and authentication. The first category is digital watermarking, the second is data hashing, and the third is error detection...
Briefs: Software
High-Speed Network Protocol for Faster, More Reliable Emergency Response
Anew network protocol — the Multi Node Label Routing (MNLR) protocol — was developed to improve the information flow between emergency responders at the scene of an incident and decision-makers at the office of emergency management.
Briefs: Sensors/Data Acquisition
A voltage detector chip was developed that requires only a few trillionths of a Watt (picowatts) to activate other circuits, enabling engineers to design sensors that continuously listen, without...
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Briefs: Software
Custom Administration Reporting (gTracker)
A reporting tool was needed that could indicate the accuracy of search results by tracking the number of clicks required by users to find their desired search results. The application should also capture the number of times other links and like filtering components are clicked. The report should have the...
Briefs: Software
PathDroid
Android is the primary software platform for mobile, networked devices such as tablets and smartphones. These devices are increasingly used for safety-critical functions that require verification of correct and robust behavior of applications. Such software written for the Android operating system is hard to test because applications are...
Briefs: Green Design & Manufacturing
Flood Dashboard 2.0
Google Maps and Google Earth allow the development of customized displays, but such displays must be constructed by a software developer. The Flood Dashboard allows non-technical users to utilize a simple Web form to build and present custom displays. It is a Ruby on Rails 4 application that allows users to build custom...
Briefs: Software
Enterprise Business Information System (EBIS) Data Warehouse Quality Inspector
A typical data warehouse may contain thousands of tables. Validating the data quality of all data warehouse content is an unmanageable and unmaintainable task if handled in an ad-hoc fashion. This software seeks to ensure that a data warehouse accurately reflects the...
Briefs: Software
A network geolocation technology (NGT) can be used to determine the physical location of a networked Internet user, as well as accurately determine if an Internet user is in fact in the metropolitan service area...
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Briefs: Software
DiVisa is a multi-dimensional information visualization tool that en ables researchers to understand the behavior of network data.
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Briefs: Mechanical & Fluid Systems
Heat exchangers are used for the transfer of heat between two or more media. The media may be separated by a solid wall so that they never mix, or they may be in direct contact. Heat exchangers may be used in HVAC systems, power...
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Briefs: Robotics, Automation & Control
A number of instruments have been built to obtain range images — a two-dimensional array of numbers that gives the depth of a scene along many directions from a central point in the instrument. Instead of measuring the...
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Briefs: Software
PLOT3D 4.1
PLOT3D is an interactive graphics program designed to help scientists visualize computational fluid dynamics (CFD) grids and solutions. Today, supercomputers and CFD algorithms can provide scientists with simulations of such highly complex phenomena that obtaining an understanding of the simulations has become a major problem. Tools that...
Briefs: Communications
Many industrial and commercial plants, government and private research facilities, and industrial facilities perform potentially dangerous processes. Automated warning and alarm systems alert personnel to...
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Briefs: Communications
Reliable, long-range acoustic communications (LRAC) is an enabling technology for numerous applications of manned and unmanned underwater systems. For example, with the capability of communicating at...
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