Keyword: Technical review

Application Briefs: Test & Measurement
NU-LHT lunar simulant
Zybek Advanced Products (ZAP)
Boulder, CO

Lunar simulants are a critical aspect of the return to the Moon...

Briefs: Software
Goddard Mission Services Evolution Center Compliance Test Suite

To reduce the cost of building specialized interfaces, missions can adopt Goddard Mission Services Evolution Center (GMSEC) technologies and applications. Assurances need to be made that application implementation should follow the GMSEC messaging standards. The GMSEC Interface...

Briefs: Electronics & Computers
Space Modem GMSK Modulator

A high-rate GMSK (Gaussian Minimum Shift Keying) modulator was developed for space operation. Currently, multi-user modems are under development, and the GMSK modulator provides a way of packing more users within a space environment, especially for Mars exploration.

Briefs: Software
NASA Experiment Designer: A Tool for Running Scientific Workflows

The NASA Experiment Designer (NED) is a client-server application that enables end-to-end support for driving long-running scientific computer simulations such as climate and weather models. The tool provides a friendly, single point of entry for configuring parameters associated...

Application Briefs: Photonics/Optics
Volume-phase, holographic-grating Raman
Wasatch Photonics
Logan, UT

Raman laser spectroscopy technology from...

Briefs: Physical Sciences
Physical Causes of Extremely Low Geomagnetic Activity

An analysis of solar, solar wind, and geomagnetic data during the recent solar cycle minimum (2008) has recently been undertaken. It was discovered that the lowest value of the Ap index [this index is an averaged planetary A index based on data from a set of specific magnetometer stations] in...

Briefs: Manufacturing & Prototyping
Growth Method for Chalcongenide Phase-Change Nanostructures

Recently, one-dimensional (1-D) nanostructures such as nanowires and nanotubes have become the focal point of research in nanotechnology due to their fascinating properties. These properties are intrinsically associated with low dimensionality and small diameters, which may lead to...

Briefs: Physical Sciences

Existing observing systems are inadequate to measure a variety of dynamic atmospheric processes. Ground-based or airborne systems do not observe over sufficiently large regions to capture...

Briefs: Information Technology
Heavy-Alkane Oxidation Kinetic-Mechanism Reduction

Oxidation chemical reactions of many practical fuels encompass thousands of species. When simulating complex turbulent reactive flows, it is impossible to account for the time and spatial evolution of all these species given current and foreseeable-future computer memory and time. This...

Application Briefs: Software

Hyperspectral imaging has grown increasingly popular over the past ten years in military, industrial, and scientific arenas. The ability to precisely characterize the color of a viewed...

Articles: Software

As traditional Computer-Aided Design (CAD) software expands with more simulation capabilities and wider enterprise data management, software vendors are meeting customers’ demands with solutions...

Articles: Electronics & Computers

We’ve come a long way since Alexander Graham Bell’s famous words, “Mr. Watson, come here” were spoken and the telephone was born. The simplicity of use of...

Briefs: Physical Sciences
Transition-Edge Hot-Electron Microbolometers for Millimeter and Submillimeter Astrophysics

The millimeter and the submillimeter wavelengths of the electromagnetic spectrum hold a wealth of information about the evolution of the universe. In particular, cosmic microwave background (CMB) radiation and its polarization carry the oldest information...

Application Briefs: Imaging
Lumenera Corp.
Ottawa, Canada

Lumenera recently partnered with an ophthalmology diagnostic device manufacturer that required a...

Briefs: Manufacturing & Prototyping
Silicon Alignment Pins: An Easy Way To Realize a Wafer-to-Wafer Alignment

Submillimeter heterodyne instruments play a critical role in addressing fundamental questions regarding the evolution of galaxies as well as being a crucial tool in planetary science. To make these instruments compatible with small platforms, especially for the study of...

Briefs: Software
Workflow-Based Software Development Environment

The Software Developer’s Assistant (SDA) helps software teams more efficiently and accurately conduct or execute software processes associated with NASA mission-critical software. SDA is a process enactment platform that guides software teams through project-specific standards, processes, and...

Briefs: Sensors/Data Acquisition
High-Speed Data Recorder for Space, Geodesy, and Other High-Speed Recording Applications

A high-speed data recorder and replay equipment has been developed for reliable high-data-rate recording to disk media. It solves problems with slow or faulty disks, multiple disk insertions, high-altitude operation, reliable performance using COTS hardware,...

Briefs: Medical
Intravenous Fluid Generation System

The ability to stabilize and treat patients on exploration missions will depend on access to needed consumables. Intravenous (IV) fluids have been identified as required consumables. A review of the Space Medicine Exploration Medical Condition List (SMEMCL) lists over 400 medical conditions that could present...

Articles: Aerospace
Microwave Extraction of Water for Space Propellant Edwin Ethridge, Ph.D.
NASA (retired),
Huntsville, AL

Space exploration is extremely expensive because very...

Briefs: Information Technology
Development of the Code RITRACKS

A document discusses the code RITRACKS (Relativistic Ion Tracks), which was developed to simulate heavy ion track structure at the microscopic and nanoscopic scales. It is a Monte- Carlo code that simulates the production of radiolytic species in water, event-by-event, and which may be used to simulate tracks and...

Articles: Energy

Organic photovoltaic (OPV) technology has been rapidly growing in performance and popularity over the past few years and is expected to become a major PV technology within the next decade. Here’s why.

Articles: Aerospace

Building on the success of Curiosity’s landing, NASA has announced plans for the next robotic science rover, which is set to launch in 2020. The proposed 2020 rover mission is part of NASA’s Mars Exploration...

Articles: Semiconductors & ICs

Part 1 of this article, which appeared in the August 2013 issue of NASA Tech Briefs, dealt with ON-state characterization of high power semiconductors (link to...

Briefs: Information Technology
Tool for Automated Retrieval of Generic Event Tracks (TARGET)

Methods have been developed to identify and track tornado-producing mesoscale convective systems (MCSs) automatically over the continental United States, in order to facilitate systematic studies of these powerful and often destructive events. Several data sources were combined to...

Research News: Lighting

As demand for computing and communication capacity surges, the global communication infrastructure struggles to keep pace. The problem is that light signals...

Briefs: Materials
Enhanced Schapery Theory Software Development for Modeling Failure of Fiber-Reinforced Laminates

Progressive damage and failure analysis (PDFA) tools are needed to predict the nonlinear response of advanced fiber-reinforced composite structures. Predictive tools should incorporate the underlying physics of the damage and failure mechanisms...

Articles: Materials

More than two decades ago, NASA started looking for a new way to keep astronauts comfortable in their space gloves. During a spacewalk, temperatures can range between 250 °F and -250 °F. One...

Application Briefs: Electronics & Computers

The instruments aboard NASA’s Mars Science Laboratory “Curiosity” rover receive their power from a radioisotope system assembled and tested at Idaho National Laboratory. The Multi- Mission...

Articles: Motion Control
When airline passengers travel in coach class, expectations are fairly low with regard to comfort. For example, most seats only offer two positions: straight for takeoff and landing, and a slight recline for the journey. Coach seats are relatively simple and lightweight structures compared to their more sophisticated counterparts in business class, first class, and super first class. Whereas a coach seat weighs approximately 100 pounds, seats in higher classes weigh 200 to 300 pounds each, depending on their features.