Special Coverage

Lightweight, Flexible Thermal Protection System for Fire Protection
High-Precision Electric Gate for Time-of-Flight Ion Mass Spectrometers
Polyimide Wire Insulation Repair System
Distributed Propulsion Concepts and Superparamagnetic Energy Harvesting Hummingbird Engine
Wet Active Chevron Nozzle for Controllable Jet Noise Reduction
Magnetic Relief Valve
Active Aircraft Pylon Noise Control System
Unmanned Aerial Systems Traffic Management

Super Bulk Production of Single-Walled Carbon Nanotubes

Japan Industrial Technology Association Highly pure, single-walled carbon nanotubes (SWNTs) are mass-produced in bulk forms such as vertically aligned “forests” through a process called Super CVD, a supercharged chemical vapor deposition (CVD) process. Structures of carbon SWNT are patterned and their growth controlled using specialized methods and furnaces.

Posted in: Techs for License


Low-Friction Surface for Ready-to-Use Catheter

A company seeks a low-friction surface for ready-to-use intermittent catheters for both men and women, with the goal of achieving insertion and retraction without causing any trauma or perception of trauma. The low-friction surface must operate during insertion, while the catheter is in place, and during removal. Balance between kink-resistance and flexibility is important, and the ability to insert the catheter without touching it would be ideal. It must offer 3-5 years of shelf life at ambient temperatures, and use biocompatible materlals.

Posted in: NASA Tech Needs


One-Handed Ergonomic Approach to Pliers/Cutters

A company seeks a new generation of precise, ergonomic pliers that virtually eliminates the effort that causes hand fatigue. Ideally, it would require the exertion of zero force to cut through Romex, strapping, or staples. The tool must provide one-handed operation and conform to a variety of grips a worker may use. It is preferable that the device use mechanical advantage rather than power, although self-contained power assist is acceptable. A battery pack or compressed air connection will not work.

Posted in: NASA Tech Needs


Greg Olsen on Imaging, Space Science, and the Future of Engineering

Dr. Greg Olsen has had an illustrious career as a research scientist and entrepreneur. With degrees in physics and materials science, Olsen founded EPITAXX, a fiber-optic detector manufacturer, in 1984, and then founded Sensors Unlimited Inc. (SUI), a near-infrared camera manufacturer in 1992. SUI was sold to Goodrich Corp. in 2005. During his career, Olsen developed vapor phase epitaxial crystal growth of optoelectronic devices, including laser diodes and photodetectors for fiber-optic applications based on the material indium gallium arsenide (InGaAs). He was awarded 12 patents, wrote more than 100 technical papers, co-authored several book chapters, and has given numerous lectures to both technical and trade journal audiences.

Posted in: Articles


High-Speed Vision Inspection for Sheet-Based Electronics Materials

Process Photonics (Ottawa, ON, Canada) builds processing systems for the PCB, electronics assembly, and medical device markets. Their ProVisionTM series is a solution that uses vision to inspect panel and sheet-based circuit features. The system concept was devised after a customer expressed interest in replacing multiple existing inspection machines. The customer wanted a unit that was capable of significantly higher resolution and throughput, but also wanted to plan for a system that could perform defect recognition tasks beyond the original system’s capabilities.

Posted in: Application Briefs


Adaptive Morphological Feature-Based Object Classifier for a Color Imaging System

This technique has potential use in the fields of disease state identification, cancer screening and detection, and wound healing.Utilizing a Compact Color Microscope Imaging System (CCMIS), a unique algorithm has been developed that combines human intelligence along with machine vision techniques to produce an autonomous microscope tool for biomedical, industrial, and space applications. This technique is based on an adaptive, morphological, feature-based mapping function comprising 24 mutually inclusive feature metrics that are used to determine the metrics for complex cell/objects derived from color image analysis. Some of the features include:

Posted in: Briefs, TSP, Information Sciences


Objective Lens Optimized for Wavefront Delivery, Pupil Imaging, and Pupil Ghosting

An interferometer objective lens (or diverger) may be used to transform a collimated beam into a diverging or converging beam. A typical objective lens is optimized to deliver a diffraction-limited beam to an optic or optical system under test. Often, imaging performance with respect to the interferometer pupil is not optimal. The center of curvature test for the James Webb Space Telescope required a better solution.

Posted in: Briefs, Physical Sciences


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