Stories
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Briefs: Photonics/Optics
An optical system that utilizes visible light at nearly perpendicular incidence has been invented for use in testing the surface figures of nominally axisymmetric (paraboloidal,...
Briefs: Photonics/Optics
Making Digital Composite Images for Technical Illustration
A method of generating three-dimensional composite digital images can serve multiple purposes in technical illustration. The method was devised to accelerate and facilitate the design of new electric lights and receptacles for large buildings, and can just as well be applied to the design,...
Briefs: Imaging
A portable instrument denoted a phase-retrieval camera (PRC) is designed to enable the testing of large, lightweight optics in the presence of vibrations and atmospheric turbulence. The development of...
Briefs: Photonics/Optics
The liquid-crystal phase-shifting shearing interferometer is a common-path interferometer based partly on a lateral-shear-plate interferometer. It bears a partial similarity to the...
Briefs: Photonics/Optics
The figure schematically depicts an apparatus for measuring strain at only one designated location on a structure. The apparatus is a fiber-optic phase-locked loop, wherein strain in...
Briefs: Photonics/Optics
The efficiencies and thus the brightnesses of flat-panel projectors based on liquid-crystal devices (LCDs) and digital mirror devices (DMDs) would be increased by the combination of a...
Briefs: Photonics/Optics
Multi-Screen-Image- and Catalog-Viewing Program
A computer program enables the single- or multi-screen display of multispectral, multiresolution images — especially astronomical ones — stored as sets of data that range upward in size from hundreds of gigabytes. In cases of multi-screen displays, the software synchronizes the screens so that...
Briefs: Imaging
Software Automates Processing of SAR Image Data
The Automated SAR Image Processor (ASIP) computer program increases the efficiency of production of scientifically useful imagery from raw synthetic-aperture-radar (SAR) image data. In the absence of ASIP, the processing of SAR data is a labor-intensive task, often involving supporting personnel, that...
Briefs: Electronics & Computers
An all-digital demodulator has been developed for receiving radio signals with multigigahertz carrier frequencies phase-modulated with digital data signals at bit rates of hundreds of...
Briefs: Electronics & Computers
Reusable Software for Autonomous Diagnosis of Complex Systems
A software system designed to provide a purely signal-based diagnosis of virtually any time-varying system has been developed. This software is part of an overall concept called “Beacon-based Exception Analysis for Multimissions,” or BEAM. This concept provides for real-time...
Briefs: Electronics & Computers
The TAXI Direct-to-Disk interface is a special-purpose interface circuit for demultiplexing of data from a Racal Storeplex (or equivalent) multichannel recorder onto one...
Briefs: Software
Program Improves Transfer of Data From CAD to Machine Shops
The EMNet computer program has been developed to overcome the difficulties and reduce the errors that, heretofore, have been encountered in transferring data from computer-aided design (CAD) systems to computer numerically controlled (CNC) machines. EMNet could improve operations in almost...
Briefs: Information Technology
A method of processing data acquired by ultra-wide-band (UWB) syntheticaperture radar (SAR) provides for suppression of those errors that are caused by the undesired relative motion of the radar...
Briefs: Software
Program for International-Temperature-Scale Calculations
A computer program implements several aspects of the International Temperature Scale of 1990 (ITS90).
Briefs: Software
Updated Global Atmospheric Reference Model Computer Programs
The 1999 version of the NASA/Marshall Space Flight Center Global Reference Atmospheric Model (GRAM-99) and version 3.8 of the Mars Global Reference Atmospheric Model (Mars- GRAM) are the latest in two series of computer programs for calculating selected physical properties of the...
Briefs: Software
Gyroscope Automated Testbed
The Gyroscope Automated Testbed (GAT) is a fully automated inertial device characterization testbed. Rotational response parameterization and shortterm noise stability analysis are the fundamental principles behind the system. Complete response characterization, bias stability, sensitivity, and range are supported along...
Briefs: Nanotechnology
Since its invention in 1948, the transistor has revolutionized everyday life. The electronics revolution is based on miniaturization of transistors; smaller transistors are faster, and...
Briefs: Electronics & Computers
“Flip chip on board (FCOB) with high thermal conductivity and tailored coefficient of thermal expansion (CTE)” denotes a developmental concept for relatively inexpensive,...
Briefs: Electronics & Computers
Printed-wiring boards (PWBs) that are especially suitable as substrates for highly reliable, lightweight electronic circuits for aircraft and spacecraft have been developed. Like...
Briefs: Materials
Thin films of Li2CO3 are under consideration for use as passivating layers between electrodes and solid electrolytes in advanced thin-film lithium-ion electrochemical cells. By...
Briefs: Mechanical & Fluid Systems
NASA’s F-15B #836 is a two-seat version of the F-15, which is a high-performance, supersonic, all-weather fighter airplane. The F-15B is used as a test-bed aircraft for a wide variety of...
Briefs: Mechanical & Fluid Systems
An improved alignment mechanism and mating procedure have been devised for a robotic drilling system in which there is a need to assemble drill stem rods for sampling soils and rocks on a...
Briefs: Mechanical & Fluid Systems
A technique for measuring the volume of an incompressible liquid in a rigid tank involves measurement of the total volume of gas in those parts of the tank not occupied by the liquid....
Briefs: Mechanical & Fluid Systems
A small mobile robot equipped with a stereoscopic machine vision system and two manipulator arms that have limited degrees of freedom has been given the ability to perform moderately...
Briefs: Manufacturing & Prototyping
A process that includes photolithography, liftoff, etching, and sputter deposition has been developed to enable the fabrication of thin, finely patterned layers of gold, platinum,...
Briefs: Manufacturing & Prototyping
Software for Optimized Flattening From 3D to 2D
A computer program offers enhanced capabilities for calculating two-dimensional (2D) patterns needed to construct specified three-dimensional (3D) surfaces to within acceptably close approximations, with minimal waste of sheet material. Examples of complexly shaped sheet-material items that could be...
Briefs: Manufacturing & Prototyping
Electron-Beam Welding of Superalloys at High Temperatures
Electron-beam welding at high temperatures has been found to be a suitable process for joining structural components made by casting certain superalloys. This process can be used in the fabrication of superalloy parts that must withstand high operating temperatures. Examples of such parts...
Briefs: Medical
An improved method of sterilizing petri-dish spreaders and a spreader design to implement the method have been developed. In comparison with the conventional methods of sterilizing...
Briefs: Medical
Quantifying Microbial Diversity Through Dilution/Extinction
A method of relatively easily, rapidly, and inexpensively quantifying the structural diversity of a multiple-species community of micro-organisms is based on the rate of extinction of phenotypic traits across a dilution gradient of a sample of the community. In this context, the concept of...
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Ask the Expert
Dan Sanchez on How to Improve Extruded Components
Improving extruded components requires careful attention to a number of factors, including dimensional tolerance, material selection, and processing. Trelleborg’s Dan Sanchez provides detailed insights into each of these considerations to help you advance your device innovations while reducing costs and speeding time to market.
Webcasts
Podcasts: Medical
How Wearables Are Enhancing Smart Drug Delivery
Podcasts: Medical
Developing Sustainable Drug-Delivery Devices
Podcasts: Design
Smarter Pathways for Precision Drug Delivery in Cancer Care
On-Demand Webinars: Manufacturing & Prototyping
Understanding Testing and Compliance Requirements for Wireless Medical Devices
Podcasts: AR/AI
Personalized Medicine and Drug Delivery
Podcasts: Green Design & Manufacturing
Inside Story
Inside Story: Trends in Packaging and Sterilization
Eurofins Medical Device Testing (MDT) provides a full scope of testing services. In this interview, Eurofins’ experts, Sunny Modi, PhD, Director of Package Testing; and Elizabeth Sydnor, Director of Microbiology; answer common questions on medical device packaging and sterilization.