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Briefs: Information Technology
Real-Time Flight Envelope Monitoring System
The objective of this effort was to show that real-time aircraft control-surface hinge-moment information could be used to provide a robust and reliable prediction of vehicle performance and control authority degradation. For a given airfoil section with a control surface — be it a wing with an aileron,...
Briefs: Test & Measurement
Nemesis Autonomous Test System
A generalized framework has been developed for systems validation that can be applied to both traditional and autonomous systems. The framework consists of an automated test case generation and execution system called Nemesis that rapidly and thoroughly identifies flaws or vulnerabilities within a system. By applying...
Briefs: Electronics & Computers
Frequency to Voltage Converter Analog Front-End Prototype
The frequency to voltage converter analog front end evaluation prototype (F2V AFE) is an evaluation board designed for comparison of different methods of accurately extracting the frequency of a sinusoidal input signal. A configurable input stage is routed to one or several of five separate,...
Briefs: Manned Systems
Dust-Tolerant Intelligent Electrical Connection System
Faults in wiring systems are a serious concern for the aerospace and aeronautic (commercial, military, and civilian) industries. Circuit failures and vehicle accidents have occurred and have been attributed to faulty wiring created by open and/or short circuits. Often, such circuit failures...
Briefs: Electronics & Computers
Gigabit Ethernet Asynchronous Clock Compensation FIFO
Clock compensation for Gigabit Ethernet is necessary because the clock recovered from the 1.25 Gb/s serial data stream has the potential to be 200 ppm slower or faster than the system clock. The serial data is converted to 10-bit parallel data at a 125 MHz rate on a clock recovered from the...
Briefs: Electronics & Computers
High-Speed, Multi-Channel Serial ADC LVDS Interface for Xilinx Virtex-5 FPGA
Analog-to-digital converters (ADCs) are used in scientific and communications instruments on all spacecraft. As data rates get higher, and as the transition is made from parallel ADC designs to high-speed, serial, low-voltage differential signaling (LVDS) designs, the need...
Briefs: Manufacturing & Prototyping
The GeoLab glovebox was designed to enable the preliminary examination, by astronauts, of geological samples collected from the surface of another planetary body. The collected information would then...
Briefs: Manufacturing & Prototyping
Modified Process Reduces Porosity When Soldering in Reduced Gravity Environments
A modified process yields lower levels of internal porosity for solder joints produced in reduced-gravity environments. The process incorporates both alternative materials and a modified procedure. The process provides the necessary cleaning action to enable effective...
Briefs: Materials
Three Dimensionally Interlinked, Dense, Solid Form of Single-Walled CNT Ropes
A 3D networked, dense form of single-walled carbon nanotubes (SWNT) has been made through isotropic shrinking of a gel-like SWNT-water paste by very slow evaporation. Approximately 35 g of Raw HiPco nanotubes were cleaned by the method of soft baking (250 °C for 15 hours...
Briefs: Materials
Flexible Plug Repair for Shuttle Wing Leading Edge
In response to the Columbia Accident Investigation Board report, a plug repair kit has been developed to enable astronauts to repair the space shuttle’s wing leading edge (WLE) during orbit. The plug repair kit consists of several 17.78-cm-diameter carbon/ silicon carbide (C/SiC) cover plates of...
Briefs: Materials
Use of Functionalized Carbon Nanotubes for Covalent Attachment of Nanotubes to Silicon
The purpose of the invention is to covalently attach functionalized carbon nanotubes to silicon. This step allows for the introduction of carbon nanotubes onto all manner of silicon surfaces, and thereby introduction of carbon nanotubes covalently into...
Briefs: Mechanical & Fluid Systems
Magnetic Interface for Segmented Mirror Assembly
Newly developed magnetic devices are used to create an interface between adjacent mirror segments so that once assembled, aligned, and phased, the multiple segments will behave functionally equivalent to a monolithic aperture mirror. One embodiment might be a kinematic interface that is reversible so...
Briefs: Mechanical & Fluid Systems
To be able to conduct science investigations on highly sloped and challenging terrains, it is necessary to deploy science payloads to such locations and collect and process in...
Briefs: Mechanical & Fluid Systems
Transpiration-Cooled Spacecraft-Insulation-Repair Fasteners
Transpiration-cooled fasteners are proposed that operate like an open-loop heat pipe (self-tapping screws, bolts, and spikes) for use in on-orbit repair of thermal-insulation of a space shuttle or other spacecraft. By limiting the temperature rise of such a fastener and of the adjacent...
Briefs: Mechanical & Fluid Systems
A non-actuated tool has been developed for preparing regolith for in situ measurement by smoothing uneven surfaces and excavating fresher subsurface material for planetary exploration. The STAMP tool...
Briefs: Physical Sciences
This sensor unit is designed to determine the level of activation of lunar dust or simulant particles using a fluorescent technique. Activation of the surface of a lunar soil...
Briefs: Physical Sciences
Aperture Ion Source
The aperture ion source was conceived to eliminate distortion in measurements of angular distributions of neutral atoms and molecules that require electronimpact ion sources. The approach simplifies the coupling between ion source and spectrometer while providing virtually distortion-free angular distributions and improved...
Briefs: Information Technology
Model-Based Fault Diagnosis: Performing Root Cause and Impact Analyses in Real Time
Generic, object-oriented fault models, built according to causal-directed graph theory, have been integrated into an overall software architecture dedicated to monitoring and predicting the health of mission- critical systems. Processing over the generic fault...
Briefs: Lighting
A cost-competitive solution for increasing the light extraction efficiency of organic light-emitting diodes (OLEDs) with efficient and stable color rendering index (CRI) for solid-state lighting (SSL) was...
Briefs: Green Design & Manufacturing
With military colleagues, a trio of University at Buffalo engineers have shown that embedding charged quantum dots into photovoltaic cells can improve electrical output by enabling the cells...
Briefs: Green Design & Manufacturing
Sustainable Remediation Software Tool Evaluation
To advance the acceptance and incorporation of sustainable remediation metrics into the larger body of remedial work, the Center for Sustainable Groundwater and Soil Solutions (CSGSS) within the Savannah River National Laboratory (SNRL) created the Sustainable Remediation Initiative (SRI).
Briefs: Physical Sciences
Energy-Based Tetrahedron Sensor for High-Temperature, High-Pressure Environments
An acoustic energy-based probe has been developed that incorporates multiple acoustic sensing elements in order to obtain the acoustic pressure and threedimensional acoustic particle velocity. With these quantities, the user can obtain various energy-based quantities,...
Briefs: Medical
The rHEALTH technology is designed to shrink an entire hospital testing laboratory onto a handheld device. A physician or healthcare provider performs the test by collecting a fingerstick of blood from a...
Briefs: Physical Sciences
Fiber Bragg Grating Sensor System for Monitoring Smart Composite Aerospace Structures
Lightweight, electromagnetic interference (EMI) immune, fiber-optic, sensorbased structural health monitoring (SHM) will play an increasing role in aerospace structures ranging from aircraft wings to jet engine vanes. Fiber Bragg Grating (FBG) sensors for SHM...
Briefs: Physical Sciences
Health-Enabled Smart Sensor Fusion Technology
A process was designed to fuse data from multiple sensors in order to make a more accurate estimation of the environment and overall health in an intelligent rocket test facility (IRTF), to provide reliable, high-confidence measurements for a variety of propulsion test articles.
Briefs: Physical Sciences
Pt/(n-doped GaN) Schottky-barrier diodes having active areas as large as 1 cm square have been designed and fabricated as prototypes of photodetectors for the vacuum ultraviolet portion (wavelengths ≈200...
Briefs: Physical Sciences
Extended-range passive radio-frequency identification (RFID) tags and related sensor tags are undergoing development. A tag of this type incorporates a retroreflective antenna array, so that it...
Briefs: Information Technology
Hybrid Collaborative Learning for Classification and Clustering in Sensor Networks
Traditionally, nodes in a sensor network simply collect data and then pass it on to a centralized node that archives, distributes, and possibly analyzes the data. However, analysis at the individual nodes could enable faster detection of anomalies or other...
Briefs: Manufacturing & Prototyping
Self-Healing, Inflatable, Rigidizable Shelter
Any manned missions to extraterrestrial locations will require shelter structures for a variety of purposes ranging from habitat to biomass production. Such shelters need to be constructed in such a way as to minimize stowed volume and payload weight. The structures must also be very durable and have...
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