Briefs: Software
Automated Computer Access Request System

The Automated Computer Access Request (AutoCAR) system is a Web-based account provisioning application that replaces the time-consuming paper-based computer-access request process at Johnson Space Center (JSC). AutoCAR combines rules-based and role-based functionality in one application to provide a...

Briefs: Software
Range Safety for an Autonomous Flight Safety System

The Range Safety Algorithm software encapsulates the various constructs and algorithms required to accomplish Time Space Position Information (TSPI) data management from multiple tracking sources, autonomous mission mode detection and management, and flight-termination mission rule evaluation....

Briefs: Software
Fast and Easy Searching of Files in Unisys 2200 Computers

A program has been written to enable (1) fast and easy searching of symbolic files for one or more strings of characters, dates, or numerical values in specific fields or columns and (2) summarizing results of searching other fields or columns. Intended for use in Unisys 2200-series...

Briefs: Software
Parachute Drag Model

DTV-SIM is a computer program that implements a mathematical model of the flight dynamics of a missile-shaped drop test vehicle (DTV) equipped with a multistage parachute system that includes two simultaneously deployed drogue parachutes and three main parachutes deployed subsequently and simultaneously by use of pilot...

Briefs: Software
Evolutionary Scheduler for the Deep Space Network

A computer program assists human schedulers in satisfying, to the maximum extent possible, competing demands from multiple spacecraft missions for utilization of the transmitting/receiving Earth stations of NASA’s Deep Space Network. The program embodies a concept of optimal scheduling to...

Briefs: Manufacturing & Prototyping

Modular, lightweight, fully equipped buildings comprising hybrids of rigid and inflatable structures can be assembled on Earth and then transported to and deployed on the Moon for use...

Briefs: Manufacturing & Prototyping
More About N₂O-Based Propulsion and Breathable-Gas Systems

A concept was evaluated of using nitrous oxide as (1) a monopropellant in thrusters for space suits and spacecraft and (2) a source of breathable gas inside space suits and spacecraft, both by exploiting the controlled decomposition of N2O into N2 and...

Briefs: Mechanical & Fluid Systems

Ultrasonic/sonic rotary-hammer drill (USRoHD) is a recent addition to the collection of apparatuses based on ultrasonic/sonic drill corer (USDC). As described below, the USRoHD has several features, not...

Briefs: Mechanical & Fluid Systems
Lunar Soil Particle Separator

The Lunar Soil Particle Separator (LSPS) beneficiates soil prior to in situ resource utilization (ISRU). It can improve ISRU oxygen yield by boosting the concentration of ilmenite, or other iron-oxide-bearing materials found in lunar soils, which can substantially reduce hydrogen reduction reactor size, as well as...

Briefs: Mechanical & Fluid Systems

The planned Mars Science Laboratory mission requires inlet funnels for channeling unconsolidated powdered samples from the sampling and sieving...

Briefs: Mechanical & Fluid Systems

The Picosat and Uninhabited Aerial Vehicle Systems Engineering (PAUSE) project is developing balloon-borne instrumentation systems as aerobots for scientific exploration of remote planets and for...

Briefs: Materials
Exfoliated Graphite Nano-Reinforcements With Surface Modifications to Improve Dispersability

Exfoliated graphite nanoflakes are a potential low-cost source of nano-reinforcement for making polymer composites with unique properties. The chemical nature of the graphitic surface leads to a low-surface energy as produced. This makes the nanoflakes...

Briefs: Materials
MicroGel® for Passivation of Pigment Degradation

MicroGel® is a unique, highly porous xero-gel silica formed using sol-gel techniques. The starting materials used are designed per guidance from molecular dynamic calculations, and are made up of mixed alkali silicates rather than normally used single alkali silicates that are gelled with...

Briefs: Materials

A method was developed of synthesizing agglutinates as components of simulated Lunar regolith. The method is needed for further development of Lunar-exploration capabilities...

Briefs: Physical Sciences
Fuel-Cell Power Source Based on Onboard Rocket Propellants

The use of onboard rocket propellants (dense liquids at room temperature) in place of conventional cryogenic fuel-cell reactants (hydrogen and oxygen) eliminates the mass penalties associated with cryocooling and boil-off. The high energy content and density of the rocket propellants...

Briefs: Physical Sciences

In the polar regions of the Moon, some areas within craters are permanently shadowed from solar illumination and can drop to temperatures of 100 K or lower. These...

Briefs: Physical Sciences

With this high-resolution imaging radar system, coherent illumination in the 576-to-589-GHz range and phase-sensitive detection are implemented in an all-solid-state design based on...

Briefs: Physical Sciences

The temperature dependence of fluxoid quantization in a superconducting loop. The sensitivity of the device is expected to surpass that of other super-conducting-based bolometric devices, such...

Briefs: Physical Sciences
Simultaneous Spectral Temporal Adaptive Raman Spectrometer — SSTARS

Raman spectroscopy is a prime candidate for the next generation of planetary instruments, as it addresses the primary goal of mineralogical analysis, which is structure and composition. However, large fluorescence return from many mineral samples under visible light excitation...

Briefs: Information Technology
Algorithms for Learning Preferences for Sets of Objects

A method is being developed that provides for an artificial-intelligence system to learn a user’s preferences for sets of objects and to thereafter automatically select subsets of objects according to those preferences. The method was originally intended to enable automated selection,...

Briefs: Information Technology

Two image-data-processing algorithms are essential to the successful operation of a system of electronic hardware and software that noninvasively tracks the direction of a person’s...

Briefs: Information Technology
Model for Simulating a Spiral Software-Development Process

A discrete-event simulation model, and a computer program that implements the model, have been developed as means of analyzing a spiral software-development process. This model can be tailored to specific development environments for use by software project managers in making...

Briefs: Information Technology
Adapting ASPEN for Orbital Express

By studying the Orbital Express mission, modeling the spacecraft and scenarios, and testing the system, a technique has been developed that uses recursive decomposition to represent procedural actions declaratively, schemalevel uncertainty reasoning to make uncertainty reasoning tractable, and lightweight,...

Briefs: Information Technology
Algorithm That Synthesizes Other Algorithms for Hashing

An algorithm that includes a collection of several subalgorithms has been devised as a means of synthesizing still other algorithms (which could include computer code) that utilize hashing to determine whether an element (typically, a number or other datum) is a member of a set (typically,...

Products

COMSOL, Burlington, MA, has released COMSOL Multiphysics Version 4.0 multiphysics simulation software with a new COMSOL Desktop™ user interface that provides an organized...

Techs for License
Microshutters With Fast Switching Time for Highly Integrated Spectrometers

In contemporary spectrometers the wavelength selection is obtained through a dispersing optical element and a linear detector. The introduction of micro-cantilevers with fast response time, used as micro-shutters, allows the possibility to adopt a single sensing...

Techs for License
Size-Controlled Fabrication of Microparticles Incorporating Active Ingredients

A scaleable technique based on ink-jet technology fabricates polymer microparticles with best-in-class size distribution. It is suitable for a variety of particle morphologies such as solid, porous, and microcapsules filled with gases, liquids, or a combination. Drugs...

Tech Needs
Ideas and Protocols to Differentiate Terrestrial Life from Indigenous Exobiological Life

No protocol exists to determine whether life found on other planets or in space is indigenous to its locale, or is the result of contamination from probes sent by Earth. NASA seeks such a protocol in anticipation of manned exploration of Mars. The protocol...

Tech Needs
Polymer/Carbon or Other Materials With Conductivity Approaching Copper and Aluminum

A company seeks a weight-saving alternative to sheets and wires of copper and aluminum that can operate at specific frequencies. The company wants to replace conductive casings, conductors, wires, grounding plates, and similar electronics structures with other...

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