Keyword: Alternative fuels

Briefs: Photonics/Optics

Type-II interband cascade lasers (ICLs) based on the GaSb material system represent an enabling technology for laser absorption spectroscopy in the 3-to-5-μm...

Briefs: Manufacturing & Prototyping
Fabrication of a Nanopipette Array for Biosensing

Development of biosensors is an active field due to a wide range of applications in lab-on-a-chip, diagnostics of infectious diseases, cancer diagnostics, environment monitoring, biodetection, and others. One of the strategies used for selective identification of a target is to preselect a probe...

Briefs: Materials
Modeling Transmission Effects on Multilayer Insulation

Recent experimental results within the NASA community have shown apparent degradation in the performance of multilayer insulation (MLI) when used in low-temperature applications, e.g., in liquid hydrogen tanks. There was speculation that this degradation was due to the appearance of...

Articles: Sensors/Data Acquisition

The technologies NASA develops don’t just blast off into space. They also improve our lives here on Earth. Life-saving search-and-rescue tools, implantable medical devices, advances in commercial...

Briefs: Test & Measurement
Process-Hardened, Multi-Analyte Sensor for Characterizing Multiple Rocket Plume Constituents in a Test Environment

Stennis Space Center (SSC) is one of three government-operated rocket engine test facilities in the United States and is the primary center for testing and flight-certifying rocket propulsion systems for future space vehicles....

Briefs: Physical Sciences

The goals of this research are to develop a relatively inexpensive, compact, and modular power package for deep offshore oil drilling or other undersea applications that provides 2 to 5 MW...

Briefs: Information Technology

A lake and shore sampling and sample distribution system was developed for a Titan lake environment (93.7 K, in liquid hydrocarbons). The Titan Lake and Shore Sampler (TLASS) would enable the chemical analysis of...

Application Briefs: Sensors/Data Acquisition
NI PXI DMM and NI PXI multifunction DAQ module
National Instruments
Austin, TX
1-800-531-5066
www.ni.com

Larger than the Saturn V rocket...

Briefs: Lighting

Scientists at the University of Washington have developed what they believe is the thinnest-possible semiconductor, a new class of nanoscale materials made in sheets only three...

Briefs: Sensors/Data Acquisition
Regenerable Internal CO Scrubber for Hydrogen Sensors

Amperometric electrochemical sensors are commonly used for the detection of carbon monoxide (CO) and hydrogen (H2) in air. The electrochemistry of heterogeneous CO and H2 oxidations is similar enough that the sensors show significant cross-sensitivities between the two...

Briefs: Sensors/Data Acquisition
Miniaturized Schottky Diode Sensors for Hydrogen and Hydrocarbon Detection at High Temperatures

A miniaturized Schottky diode hydrogen and hydrocarbon sensor with the structure of catalytic metal-metal oxide-silicon carbide (SiC) has been developed. The major innovation of this work is the use of the metal oxide, palladium oxide...

Briefs: Materials
Cathode Discharge Catalytic Systems for Hydrogen Recovery from Methane

In the process of recovery and regeneration of cabin atmosphere to supply oxygen to facilitate extended-duration manned missions, including expeditions to Mars or a return to the Moon, one of the byproducts of this reaction is waste methane, which is vented into space. This...

Briefs: Materials
Synthesis of Novel Copoly(alkyl ether imide)s With Unique Surface Properties

Copoly(alkyl ether imide)s were synthesized for the purposes of tailoring surface chemistry. Alkyl ether oligomers with amine end groups were synthesized from the hydroxyl-terminated species, and subsequently reacted with aromatic dianhydrides and diamines to make the...

Briefs: Software

When the space shuttle’s external tank (ET) was being filled with the cryogenic fuel components LOX and LH2, moisture from the surrounding atmosphere could condense onto...

Application Briefs: Sensors/Data Acquisition
VERSALINE® Deep Silicon Etch™ System
Plasma-Therm
St. Petersburg, FL
727-577-4999
www.plasmatherm.com

NASA’s Jet Propulsion Laboratory...

Briefs: Materials
High-Efficiency, Easy-to-Manufacture Engineered Nanomaterials for Thermoelectric Applications

Stated generally, reducing the dimensionality of bulk-scale thermoelectric (TE) materials is theoretically and practically understood to be a viable route for maintaining/increasing phonon scattering, and maintaining/increasing electrical conductivity...

Briefs: Physical Sciences
Intensity-Calibrated Hydrogen Flame Spectrum

The National Aeronautics and Space Administration (NASA) uses large quantities of liquid hydrogen and has expended significant effort in the development, testing, installation, and maintenance of hydrogen fire detectors based on ultraviolet, near-infrared, mid-infrared, and/or far-infrared flame...

Briefs: Physical Sciences
Hydrogen Measurement in a Cryogen Flow Stream Reduces Waste of Helium

The purpose of this research was to develop an improved method for measuring hydrogen concentrations in a cryogen flow stream to minimize helium waste during the purge process. Currently, this type of measurement is performed manually with a sniffer, and involves obtaining...

Briefs: Physical Sciences
Carbon Monoxide Silicate Reduction System

Oxygen produced from lunar resources is a very desirable product to greatly reduce the mass lifted from the Earth’s surface in support of exploration activities. The ability to obtain high yields of oxygen from undifferentiated lunar soils enables planning for near-term piloted missions to the Moon....

Briefs: Materials
Elevated-Temperature, Highly Emissive Coating for Energy Dissipation of Large Surfaces

This coating demonstrates high emittance above 80% or better at broad wavelengths within the infrared spectrum. It has shown to have an extremely stable emittance at lower wavelengths within the infrared (IR) spectrum, where energy dissipation is critical at...

Briefs: Materials
Catalyst for Treatment and Control of Post-Combustion Emissions

Emissions from fossil-fuel combustion contribute significantly to smog, acid rain, and global warming problems, and are subject to stringent environmental regulations. These regulations are expected to become more stringent as state and regional authorities become more involved in...

Briefs: Physical Sciences
Lunar Organic Waste Reformer

The Lunar Organic Waste Reformer (LOWR) is a novel technology to convert organic wastes from human space exploration outposts into useful propellant constituents. The LOWR meets NASA’s Trash to Supply Gas (TtSG) objective under the Advanced Exploration Systems Logistics Reduction and Repurposing project by...

Briefs: Manufacturing & Prototyping
Novel Chemistry for Deposition of MgF2 Thin Films

Magnesium fluoride (MgF2) thin films are useful for many different optics applications. In particular, they are useful for ultraviolet anti-reflective and protective coatings. However, in the far UV, one needs a very small, controllable amount of material to get the best optical...

Briefs: Physical Sciences
Use of Selective Oxidation Catalyst for Amperometric Sensing Electrode

A modified oxidation catalyst material can be used to build a carbon-monoxide-sensing electrode for amperometric sensors to overcome the typical cross-sensitivity of these sensors toward hydrogen. The technology will have applications in the emerging hydrogen fuel cell...

Research News: Lighting

Researchers from the universities of Bonn and Regensburg have developed a novel type of organic light-emitting diode (OLED). These lights are suitable for the design of particularly...

Articles: Automotive

The SAE 2014 World Congress, which takes place April 8-10 at Cobo Hall in Detroit, assembles the best talent in the automotive industry — experts, management teams, engineers, and executives — to...

Application Briefs: Communications
Monopropellant (hydrazine) thrusters
Aerojet Rocketdyne
Sacramento, CA
916-355-4000
www.rocket.com

Aerojet Rocketdyne, a GenCorp company, played a vital role in...

Briefs: Physical Sciences
Green PCB Removal From Sediment Systems (GPRSS)

John F. Kennedy Space Center, Florida A number of NASA centers have used polychlorinated biphenyl (PCB)-containing materials that have subsequently ended up in surrounding sediment systems. Each center is evaluating remediation technologies that may have application to their environmental problems;...

Briefs: Semiconductors & ICs
Metal-Assisted Fabrication of Biodegradable Porous Silicon Nanostructures

Porous silicon nanowires are fabricated by two-step, metal-assisted electroless chemical etching of p-type or n-type silicon wafers. This method, in combination with nanolithography or nanopatterning, can be applied to fabricate porous silicon nanostructures of different...