Keyword: Logistics

Briefs: Semiconductors & ICs
Miniature Sapphire Acoustic Resonator — MSAR

A room temperature sapphire acoustics resonator incorporated into an oscillator represents a possible opportunity to improve on quartz ultrastable oscillator (USO) performance, which has been a staple for NASA missions since the inception of spaceflight. Where quartz technology is very mature and...

Briefs: Software
Astronaut Health Participant Summary Application

The Longitudinal Study of Astronaut Health (LSAH) Participant Summary software captures data based on a custom information model designed to gather all relevant, discrete medical events for its study participants. This software provides a summarized view of the study participant’s entire medical...

Briefs: Materials
Nanoparticle/Polymer Nanocomposite Bond Coat or Coating

This innovation addresses the problem of coatings (meant to reduce gas permeation) applied to polymer matrix composites spalling off in service due to incompatibility with the polymer matrix. A bond coat/coating has been created that uses chemically functionalized nanoparticles (either clay...

Briefs: Physical Sciences
Full Piezoelectric Multilayer-Stacked Hybrid Actuation/ Transduction Systems

The Stacked HYBATS (Hybrid Actuation/Transduction system) demonstrates significantly enhanced electromechanical performance by using the cooperative contributions of the electromechanical responses of multilayer, stacked negative strain components and positive strain...

Briefs: Information Technology
Visual SLAM Using Variance Grid Maps

An algorithm denoted “Gamma-SLAM” performs further processing, in real time, of preprocessed digitized images acquired by a stereoscopic pair of electronic cameras aboard an off-road robotic ground vehicle to build accurate maps of the terrain and determine the location of the vehicle with respect to the...

Briefs: Electronics & Computers
High-Precision Pulse Generator

A document discusses a pulse generator with subnanosecond resolution implemented with a low-cost field-programmable gate array (FPGA) at low power levels. The method used exploits the fast carry chains of certain FPGAs. Prototypes have been built and tested in both Actel AX and Xilinx Virtex 4 technologies....

Briefs: Electronics & Computers
Silicon-Germanium Voltage-Controlled Oscillator at 105 GHz

A group at UCLA, in collaboration with the Jet Propulsion Laboratory, has designed a voltage-controlled oscillator (VCO) created specifically for a compact, integrated, electronically tunable frequency generator useable for submillimeter-wave science instruments operating in extreme cold...

Briefs: Information Technology
Modeling Electromagnetic Scattering From Complex Inhomogeneous Objects

This software innovation is designed to develop a mathematical formulation to estimate the electromagnetic scattering characteristics of complex, inhomogeneous objects using the finite-element-method (FEM) and method-of-moments (MoM) concepts, as well as to develop a FORTRAN...

Application Briefs: Software
Engineering Review Board Information System (ERBIS)
a.i. solutions
Lanham, MD

Managing the people, data, and activities...

Briefs: Photonics/Optics

The simplified architecture is a minimal system for a deep-space optical communications transceiver. For a deep-space optical communications link the...

Briefs: Photonics/Optics

A new optical beam tracking approach for free-space optical communication links using two-photon absorption (TPA) in a high-bandgap detector material was demonstrated. This tracking...

Briefs: Electronics & Computers
Coherent Frequency Reference System for the NASA Deep Space Network

The NASA Deep Space Network (DSN) requires state-of-the-art frequency references that are derived and distributed from very stable atomic frequency standards. A new Frequency Reference System (FRS) and Frequency Reference Distribution System (FRD) have been developed, which...

Briefs: Electronics & Computers
Power Amplifier Module With 734-mW Continuous Wave Output Power

Research findings were reported from an investigation of new gallium nitride (GaN) monolithic millimeter-wave integrated circuit (MMIC) power amplifiers (PAs) targeting the highest output power and the highest efficiency for class-A operation in W-band (75–110 GHz). W-band PAs are...

Briefs: Electronics & Computers
Ultra-Low-Noise W-Band MMIC Detector Modules

A monolithic microwave integrated circuit (MMIC) receiver can be used as a building block for next-generation radio astronomy instruments that are scalable to hundreds or thousands of pixels. W- band (75–110 GHz) low-noise receivers are needed for radio astronomy interfer- ometers and spectrometers,...

Application Briefs: Imaging

Food manufacturers are held to strict agency regulations regarding product quality and consistency. Repeatable visual inspections are critical to ensure consumers receive a consistent...

Application Briefs: Imaging

Food manufacturers are held to strict agency regulations regarding product quality and consistency. Repeatable visual inspections are critical to ensure consumers receive a consistent...

Application Briefs: Electronics & Computers

The desire to consolidate datacenter I/O has existed for several decades. It has been driven by I/O hardware providers who didn’t want to develop multiple versions of the same I/O card for...

Briefs: Mechanical & Fluid Systems
Use of ILTV Control Laws for LaNCETS Flight Research

A report discusses the Lift and Nozzle Change Effects on Tail Shock (LaNCETS) test to investigate the effects of lift distribution and nozzle-area ratio changes on tail shock strength of an F-15 aircraft. Specific research objectives are to obtain in-flight shock strength for multiple...

Briefs: Information Technology
Evaluating Descent and Ascent Trajectories Near Non-Spherical Bodies

Spacecraft landing on small bodies pass through regions where conventional gravitation formulations using exterior spherical harmonics are inaccurate. An investigation shows that a formulation using interior solid spherical harmonics might be satisfactory. Interior spherical...

Briefs: Manufacturing & Prototyping
Process To Produce Iron Nanoparticle Lunar Dust Simulant Composite

A document discusses a method for producing nanophase iron lunar dust composite simulant by heating a mixture of carbon black and current lunar simulant types (mixed oxide including iron oxide) at a high temperature to reduce ionic iron into elemental iron. The product is a...

Briefs: Physical Sciences
Optical Sidebands Multiplier

Optical sidebands have been generated with relative frequency tens to hundreds of GHz by using optical sidebands that are generated in a cascade process in high-quality optical resonators with Kerr nonlinearity, such as whispering gallery mode (WGM) resonators. For this purpose, the WGM resonator needs to be...

Articles: Manufacturing & Prototyping
Research News: Lighting
New Facility Aims to Make LED Lighting More Natural

A new lab at the National Institute of Standards and Technology (NIST) is dedicated to improving the quality of light that light-emitting diodes (LEDs) produce. NIST vision scientists Wendy Davis and Yoshi Ohno and a team of physicists created the NIST Spectrally Tunable Lighting Facility...

Application Briefs: Lighting
Philips Lumileds, San Jose, CA
National Semiconductor, Santa Clara, CA

Abridge lighting project was recently completed in the Chinese city of Harbin, utilizing 1,288 linear floodlights containing...

Briefs: Materials
Determining Shear Stress Distribution in a Laminate

A “simplified shear solution” method approximates the through-thickness shear stress distribution within a composite laminate based on an extension of laminated beam theory. The method does not consider the solution of a particular boundary value problem; rather, it requires only knowledge...

Articles: Electronics & Computers

VPX systems offer tremendous performance for the Mil/Aero market, including naval, airborne, and ground-based computing systems. The architecture provides an unprecedented...

Articles: Electronics & Computers

VPX is like a three act play. Act one was the launching of a new high density platform for critical embedded computing applications. Leveraging the wildly popular VMEbus in 3U and 6U Eurocard formats, VPX added the...

Briefs: Software
Characterization of Cloud Water-Content Distribution

The development of realistic cloud parameterizations for climate models requires accurate characterizations of sub-grid distributions of thermodynamic variables. To this end, a software tool was developed to characterize cloud water-content distributions in climate-model sub-grid scales.

Application Briefs: Sensors/Data Acquisition
Data acquisition and distribution systems
G Systems
Richardson, TX

G Systems has delivered a Data Acquisition System...

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