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Who's Who: Physical Sciences
Having served at both JPL as a member of the Project Office science staff for the Spitzer Space Telescope and the Spitzer Science Center at Caltech where he...
Briefs: Physical Sciences
Increasing the accuracy of storm-surge flood forecasts is essential for improving preparedness for hurricanes and other severe storms and, in particular, for optimizing...
Blog: Transportation
"CREATE THE FUTURE" TODAY
A hybrid automobile or $20,000 in cash is the Grand Prize in Emhart Teknologies' and NASA Tech Briefs' fifth annual "Create the Future" Design Contest. Engineers, students, and the general public are encouraged to submit their ideas. View the official entry form and contest rules here. Categories are Everyday Products,...
Blog: Transportation
LAST CHANCE! DESIGN & WIN TODAY
There is only one day left to submit your original design idea to the fifth annual Emhart Teknologies "Create the Future" Design Contest. Enter your unique idea in one of four categories -- Everyday Products, Safety, Transportation, and Medical -- and you could win a 2007 hybrid car, $20,000 in cash, a 42" plasma TV,...
Blog: AR/AI
PHANTOM PAIN TREATMENT
Researchers at the University of Manchester (Manchester, UK) have devised an experimental method of virtual reality for the treatment of phantom limb pain (PLP) experienced by some amputees. Using headsets, data gloves, and other sensors, amputees used their remaining physical limbs to control the movements of a...
Briefs: Medical
Thermal spore exposure vessels (TSEVs) are laboratory containers designed for use in measuring rates of death or survival of microbial spores at elevated temperatures. A major consideration in the design of a TSEV...
Briefs: Medical
Enumerating Spore-Forming Bacteria Airborne With Particles
A laboratory method has been conceived to enable the enumeration of:
Cultivable bacteria and bacterial spores that are, variously, airborne by themselves or carried by, parts of, or otherwise associated with, other airborne particles; and
Spore-forming bacteria among all of the...
Briefs: Physical Sciences
Radio Heating of Lunar Soil To Release Gases
A report proposes the development of a system to collect volatile elements and compounds from Lunar soil for use in supporting habitation and processing into rocket fuel. Prior exploratory missions revealed that H2, He, and N2 are present in Lunar soil and there are some indications that water ice may...
Briefs: Physical Sciences
Using Electrostriction To Manipulate Ullage in Microgravity
A report proposes to use electrostriction to manipulate the ullage in a tank containing a dielectric liquid in a microgravitational environment. In the original intended application, the liquid would be a spacecraft propellant and the goal would be to force the ullage (comprising bubbles...
Briefs: Physical Sciences
Mixed-Salt/Ester Electrolytes for Low-Temperature Li⁺ Cells
Electrolytes comprising, variously, LiPF6 or LiPF6 plus LiBF4 dissolved at various concentrations in mixtures of alkyl carbonates and alkyl esters have been found to afford improved low-temperature performance in rechargeable lithium-ion electrochemical cells. These and other...
Briefs: Physical Sciences
The figure presents a concept of a bipolar miniature electrostatic ion thruster for maneuvering a small spacecraft. The ionization device in the proposed thruster would be a 0.1-micronthick...
Briefs: Physical Sciences
Miniature Electrostatic Ion Thruster With Magnet
A miniature electrostatic ion thruster is proposed that, with one exception, would be based on the same principles as those of the device described in the previous article, “Miniature Bipolar Electrostatic Ion Thruster” (NPO-21057). The exceptional feature of this thruster would be that, in...
Briefs: Physical Sciences
Miniature Free-Space Electrostatic Ion Thrusters
A miniature electrostatic ion thruster is proposed for maneuvering small spacecraft. In a thruster based on this concept, one or more propellant gases would be introduced into an ionizer based on the same principles as those of the device described in the earlier article, “Miniature Bipolar...
Briefs: Physical Sciences
Miniature Oxidizer Ionizer for a Fuel Cell
A proposed miniature device for ionizing the oxygen (or other oxidizing gas) in a fuel cell would consist mostly of a membrane ionizer using the same principles as those of the device described in the earlier article, “Miniature Bipolar Electrostatic Ion Thruster” (NPO-21057). The oxidizing gas would...
Briefs: Physical Sciences
The figure depicts a proposed miniature ion-mobility spectrometer that would be fabricated by micromachining. Unlike prior ion-mobility spectrometers, the proposed instrument would not be based on a...
Briefs: Physical Sciences
The figure depicts a proposed miniature ion-mobility spectrometer that would share many features of design and operation of the instrument described in the immediately preceding article. The main differences...
Briefs: Physical Sciences
Developing a control system rapidly and cost effectively requires a disciplined approach that exposes design limitations early so they can be corrected before the costs...
Briefs: Physical Sciences
Promoted-Combustion Chamber With Induction Heating Coil
An improved promoted-combustion system has been developed for studying the effects of elevated temperatures on the flammability of metals in pure oxygen. In prior promoted-combustion chambers, initial temperatures of metal specimens in experiments have been limited to the temperatures of gas...
Briefs: Nanotechnology
Techniques for Connecting Superconducting Thin Films
Several improved techniques for connecting superconducting thin films on substrates have been developed. The techniques afford some versatility for tailoring the electronic and mechanical characteristics of junctions between superconductors in experimental electronic devices. The techniques are...
Briefs: Physical Sciences
The figure shows components of a distillation column intended for use as part of a system that produces high-purity liquid oxygen (LOX) from air by distillation. (The column could be...
Briefs: Physical Sciences
Exploiting Quantum Resonance to Solve Combinatorial Problems
Quantum resonance would be exploited in a proposed quantum-computing approach to the solution of combinatorial optimization problems. In quantum computing in general, one takes advantage of the fact that an algorithm cannot be decoupled from the physical effects available to implement it....
Briefs: Medical
Architecture Adaptive Computing Environment
Architecture Adaptive Computing Environment (aCe) is a software system that includes a language, compiler, and run-time library for parallel computing. aCe was developed to enable programmers to write programs, more easily than was previously possible, for a variety of parallel computing architectures....
Briefs: Medical
Stationary Apparatus Would Apply Forces of Walking to Feet
A proposed apparatus would apply controlled cyclic forces to both feet for the purpose of preventing the loss of bone density in a human subject whose bones are not subjected daily to the mechanical loads of normal activity in normal Earth gravitation. The apparatus was conceived for use by...
Briefs: Medical
Instrument Would Detect and Collect Biological Aerosols
A proposed compact, portable instrument would sample micron-sized airborne particles, would discriminate between biological ones (e.g., bacteria) and nonbiological ones (e.g., dust particles), and would collect the detected biological particles for further analysis. The instrument is intended...
Briefs: Medical
An effort is under way to develop noninvasive neuro-electric interfaces through which human operators could control systems as diverse as simple mechanical devices, computers, aircraft,...
Briefs: Photonics/Optics
Phase Sensor for Aligning a Segmented Telescope Mirror
A phase sensor has been developed for use in aligning a segmented telescope mirror to within a fraction of a wavelength in piston. (As used here, "piston" signifies displacement of a mirror segment along the optical axis of the telescope.) Such precise alignment is necessary in order to realize...
Briefs: Physical Sciences
A recently proposed boundary condition for atomistic computational modeling of semiconductor nanostructures (particularly, quantum dots) is an improved alternative to two prior such...
Briefs: Physical Sciences
Prototype transducers based on integrated optical ring resonators have been demonstrated to be useful for detecting the protein avidin in extremely dilute solutions. In an experiment, one of the...
Who's Who: Aerospace
Before becoming NASA Ames Research Center Director, Dr. Worden was a Research Professor of Astronomy, Optical Sciences, and Planetary Sciences at the University...
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