Briefs: Information Technology
A computer program for use aboard a scientific- exploration spacecraft autonomously selects among goals specified in high-level requests and generates corresponding sequences of low-level commands, understandable by spacecraft systems. (As used here, "goals" signifies specific scientific...
Briefs: Mechanical & Fluid Systems
G-Sample is designed for sample collection missions to identify the presence and quantity of sample material gathered by spacecraft equipped with end effectors. The software method uses a maximum-likelihood estimator to identify the collected sample's mass based on onboard force-sensor...
Briefs: Information Technology
CTAEMS MDP Optimal Planner is a problem- solving software designed to command a single spacecraft/rover, or a team of spacecraft/ rovers, to perform the best action possible at all times according to an abstract model of the spacecraft/rover and its environment. It also may be useful in solving logistical...
Briefs: Information Technology
A G-RAC attitude- control algorithm is used to minimize maneuver execution error in a spacecraft with a flexible appendage when said spacecraft must induce translational momentum by firing (in open loop) large thrusters along a desired direction for a given period of time. The...
Briefs: Information Technology
The Grants Document- Generation System (GDGS) software allows the generation of official grants documents for distribution to the appropriate parties. The documents are created after the selection and entry of specific data elements and clauses. GDGS is written in Cold Fusion that resides on an SQL2000 database and...
Briefs: Materials
Shape memory alloys (SMAs) are an enabling component in the development of compact, lightweight, durable, high-force actuation systems particularly for use where hydraulics or electrical motors are not practical. However, commercial shape memory alloys based on NiTi are...
Briefs: Materials
A heat-storage module based on a commercial open-cell graphite foam (PocoFoam or equivalent) imbued with lithium nitrate trihydrate (LiNO3•3H2O) has been developed as a...
Briefs: Mechanical & Fluid Systems
The balanced-piston relief valve with side vented reaction cavity has been proposed as an improved alternative to a conventional high- pressure, high-flow relief valve. As explained...
Briefs: Mechanical & Fluid Systems
Several modifications have been made to the design and operation of an extended-shaft cryogenic pump to increase the efficiency of pumping. In general, the efficiency of pumping a cryogenic fluid is limited by thermal losses (the thermal energy that the pump adds to the fluid). The sources of the...
Briefs: Mechanical & Fluid Systems
A modification has been made in the mating halves of a cam-and- groove hose coupling to prevent rapid separation of the halves in the event that the cam levers are released while the fluid in the hose is pressurized. This modification can be duplicated on almost any commercially available cam-and-...
Briefs: Medical
It has been proposed to develop special-purpose electronic noses and algorithms for processing the digitized outputs of the electronic noses for determining whether tissue exposed...
Briefs: Medical
A method and bioreactor for the continuous production of synchronous (same age) population of mammalian cells have been invented. The invention involves the attachment and growth of cells on an adhesive-coated porous membrane immersed in a perfused liquid culture medium in a microgravity analog...
Briefs: Physical Sciences
Scintillation-based fast-neutron detectors that are smaller and less power-hungry than mainstream scintillation-based fast-neutron detectors are undergoing development. There are...
Briefs: Physical Sciences
An instrument for rapidly measuring the electric charges and sizes (from ≈1 to ≈100 μm) of airborne particles is undergoing development. Conceived for monitoring atmospheric dust particles on Mars, instruments...
Briefs: Physical Sciences
A proposed instrument for measuring a static electric field would be based partly on a conventional rotating- split-cylinder or rotating-split-sphere electric-field mill. However, the design of the...
Briefs: Physical Sciences
A method of real-time quantification of the hardness of a rock or similar material involves measurement of the temperature, as a function of time, of the tool bit of an...
Briefs: Information Technology
A method of accelerating and facilitating production of video and film motion- picture products, and software and generic designs of computer hardware to implement the method, are...
Briefs: Mechanical & Fluid Systems
A report describes a rover-type robotic wheeled vehicle recently built for use as a testbed for development of software for future rover-type vehicles. This vehicle is a derivative of the Field Integrated Design and Operations (FIDO) rover, which is a prototype Mars- exploration rover that also serves as a terrestrial...
Briefs: Electronics & Computers
A document discusses a technique for enabling the reception of spacecraft commands at received signal levels as much as three orders of magnitude below those of current deep space systems. Tone-based commanding deals with the reception of commands that are sent in the form of precise...
NASA Tech Needs
As an agency, NASA invests a significant amount of resources in the development and advancement of highend computing (HEC)...
Techs for License
This technology provides an efficient and cost-effective way to measure absolute position in one or two dimensions using a new Point Coupled Linear Transformer (PCLT). The PCLT detects movement and position on flat or curved surfaces. The nature of its design provides the sensor with...
Techs for License
Philips is offering an innovative technology to dispel humans (and animals) from an area where they are unwanted. The new and patented dispelling light source (DLS) concept is based on disturbance of humans and/or animals using photosensitive stimuli. When switching a DLS system to the specifically programmed flickering...
Tech Needs
A company is seeking unique technologies for automated hand, chuck, and grip product assembly applications (not CNC machining). Multiple sizes of gripping device are acceptable for different sized parts. The chuck or hand technology should be general purpose in nature, and show...
Tech Needs
Technologies are sought that will provide a natural method for extending shelf life, the prevention of food deterioration (oxidation and/or spoilage), and growth of pathogenic micro-organisms along the full chain of fresh or processed food. The solution could be effective at any stage, from feedstock to...
Blog
Computer programs that are used to define safety margins for fiery spacecraft re-entries and help detect planets outside our solar system are co-winners of NASA's 2007 Software of the Year Award.
Software engineers at NASA's Ames Research Center developed the Data-Parallel Line Relaxation, or DPLR, which is used to...
Blog: Medical
Ohio State University physicists have invented a new kind of MRI technique to see inside a magnet that's smaller than the head of a pin. The magnet is a ferromagnet and has too strong of a magnetic field to be studied with typical MRI. The technique may eventually enable the development of extremely small computers, and give doctors...
Blog: Aerospace
NASA's Innovative Partnerships Program has selected seven Small Business Innovation Research, or SBIR, companies to participate in reduced-gravity test flights in early September. The companies will have the opportunity to test their newly developed hardware on an aircraft that simulates the weightless conditions of...
Blog
Purdue University researchers have uncovered a potentially less expensive method to produce solid-state lighting based on light-emitting-diode (LED) technology. This development could hasten the day when LEDs, which are more energy efficient and longer lasting than conventional incandescent light bulbs, become the preferred...
Blog
Researchers from UCLA and the Veterans Affairs Greater Los Angeles Healthcare System have developed a design for an automated, wearable artificial kidney, or AWAK. Around 1980, a similar artificial kidney machine was built which was portable, but not wearable. The new technology would allow patients to go about their regular...