Special Coverage

Distributed Propulsion Concepts and Superparamagnetic Energy Harvesting Hummingbird Engine
Aerofoam
Wet Active Chevron Nozzle for Controllable Jet Noise Reduction
Magnetic Relief Valve
Locking Mechanism for a Flexible Composite Hinge
Active Aircraft Pylon Noise Control System
Unmanned Aerial Systems Traffic Management
Method of Bonding Dissimilar Materials
Sonar Inspection Robot System
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Miniature Scroll Pumps Fabricated by LIGA

These would serve as roughing pumps for vacuum systems of miniature instruments. Miniature scroll pumps have been proposed as roughing pumps (low-vacuum pumps) for miniature scientific instruments (e.g., portable mass spectrometers and gas analyzers) that depend on vacuum. The larger scroll pumps used as roughing pumps in some older vacuum systems are fabricated by conventional machining. Typically, such an older scroll pump includes (1) an electric motor with an eccentric shaft to generate orbital motion of a scroll and (2) conventional bearings to restrict the orbital motion to a circle.

Posted in: Briefs, TSP, Manufacturing & Prototyping

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Chemical Approach to Spraying All Sides of a Complex Shape

A company seeks technology to spray waterborne substances — both suspensions and solutions — on all sides of an object, even the under sides, regardless of the attitude of the object or the direction from which the spray impinges. Nearuniform coating on all surfaces of the object is required. The technology should not affect the sprayed product negatively, and must work with current spraying equipment and liquid carriers.

Posted in: NASA Tech Needs

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Triclosan Replacement

A company seeks a replacement for triclosan, a popular anti-microbial agent used in household products. The replacement requires thermal stability to withstand manufacturing temperatures (such as polymer melt temperatures during molding), UV stability, and compatibility with anionic detergents. It should also be environmentally friendly, sustainable, broad-spectrum, and cause no color change or odor in the product to which it is applied.

Posted in: NASA Tech Needs

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Flightspeed Integral Image Analysis Toolkit

The Flightspeed Integral Image Analysis Toolkit (FIIAT) is a C library that provides image analysis functions in a single, portable package. It provides basic low-level filtering, texture analysis, and subwindow descriptor for applications dealing with image interpretation and object recognition. Designed with spaceflight in mind, it addresses:

Posted in: Briefs, Software

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Detecting Airborne Mercury by Use of Polymer/Carbon Films

These films can be operated and regenerated at mild temperatures. Films made of certain polymer/carbon composites have been found to be potentially useful as sensing films for detecting airborne elemental mercury at concentrations on the order of tens of parts per billion or more. That is to say, when the polymer/carbon composite films are exposed to air containing mercury vapor, their electrical resistances decrease by measurable amounts. Because airborne mercury is a health hazard, it is desirable to detect it with great sensitivity, especially in enclosed environments in which there is a risk of a mercury leak from lamps or other equipment.

Posted in: Briefs, Materials

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Work Coordination Engine

The Work Coordination Engine (WCE) is a Java application integrated into the Service Management Database(SMDB), which coordinates the dispatching and monitoring of a work order system. WCE de-queues work orders from SMDB and orchestrates the dispatching of work to a registered set of software worker applications distributed over a set of local, or remote, heterogeneous computing systems. WCE monitors the execution of work orders once dispatched, and accepts the results of the work order by storing to the SMDB persistent store.

Posted in: Briefs, TSP, Software

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Multi-Mission Automated Task Invocation Subsystem

Multi-Mission Automated Task Invocation Subsystem (MATIS) is software that establishes a distributed dataprocessing framework for automated generation of instrument data products from a spacecraft mission. Each mission may set up a set of MATIS servers for processing its data products. MATIS embodies lessons learned in experience with prior instrument-data-product-generation software.

Posted in: Briefs, Software

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