Special Coverage

Technique Provides Security for Multi-Robot Systems
Bringing New Vision to Laser Material Processing Systems
NASA Tests Lasers’ Ability to Transmit Data from Space
Converting from Hydraulic Cylinders to Electric Actuators
Automating Optimization and Design Tasks Across Disciplines
Vibration Tables Shake Up Aerospace and Car Testing
Supercomputer Cooling System Uses Refrigerant to Replace Water
Computer Chips Calculate and Store in an Integrated Unit
Electron-to-Photon Communication for Quantum Computing

Quality Driven: Automotive Display Testing

Instrumentation, information, navigation and entertainment systems have moved to fully graphical, touch-enhanced displays, and customers expect the quality of these displays to be on par with that of their consumer electronics. Makers of in-vehicle displays must keep pace with improvements in display quality, increasing screen sizes, and higher resolutions. Quality inspection of these displays faces a unique set of challenges. They will be viewed in widely varied lighting and must withstand harsh environmental conditions. Detection of subtle flaws that could worsen as a result of these circumstances is critical to ensuring a high quality display throughout the lifespan of the vehicle.

Posted in: On-Demand Webinars, Automotive, Software

Achieving Reliable Inline Measurements in Production Environments

One of the most important changes in metrology in the past few decades has been the development of portable measuring devices. This has brought inspection right to the production line, as close to the part as possible. The change—sparked by the development of portable measuring arms and the emergence of laser trackers—has turned conventional industry inspection methods completely upside down.

Posted in: White Papers, Manufacturing & Prototyping, Software, Test & Measurement

Can algorithms create a pop-music hit?

This week's Question: Sony Computer Science Laboratory (CSL) in Paris is developing a system of algorithms which can create songs that cater to the user's taste, based on styles adapted from existing music. Starting with a sheet-music database of more than 13,000 existing songs, users choose several titles with the sound or feel that they would like the new song to incorporate.

Posted in: Question of the Week, Software

Special Edition: Simulation Gets Personal

To drive sustainable innovation your research and development teams need creative and collaborative ways to think about product, nature, and life working together in harmony.

Posted in: White Papers, Electronics & Computers, Software

Python Interface to T-Matrix Scattering Computations (PyTMatrix)

PyTMatrix is a Python interface to a T-matrix numerical scattering computation code originally developed at NASA GISS (Goddard Institute for Space Studies). It integrates into the NumPy/SciPy scientific framework. The software provides streamlined access to numerical T-matrix computations directly from the Python programming language. It retains the original numerical core written in Fortran 77, thus combining the flexibility of Python and the numerical performance of Fortran. It also provides tools for post-processing the output by integrating over various particle size and orientation distributions.

Posted in: Briefs, Electronics & Computers, Information Sciences, Software, Mathematical analysis, Computer software and hardware, Particulate matter (PM)

System and Method for Space Utilization Optimization and Visualization

The program uses a standard Web browser to allow for visualization of an entire organization down to individual rooms.

NASA’s Langley Research Center has developed a space-allocation and planning software system to allow for more effective and efficient facility usage. It also provides a customizable strategy for organizing personnel and project teams to maximize productivity and synergies among employees. Cost-reduction solutions are suggested based on organizational input constraints related to the facility. The program uses a standard Web browser to allow for visualization of an entire organization down to individual rooms. The planning tool is based on algorithms that were developed using ArcGIS software and Visual Basic codes, which enable evaluation of different space-management scenarios in real time.

Posted in: Briefs, Software, Computer software and hardware, Logistics, Personnel, Systems management, Productivity

Reducing Sensor and Readout Circuitry Noise in Digital Domain Using Reference Pixels

One of the main heritage tools used in scientific and engineering data spectrum analysis is the Fourier Integral Transform and its high-performance digital equivalent — the Fast Fourier Transform (FFT). The Fourier view of nonlinear mechanics that has existed for a long time and the associated FFT carry strong a-priori assumptions about the source data, such as linearity and being stationary. Natural phenomena measurements are essentially nonlinear and nonstationary.

Posted in: Briefs, Software, Mathematical models, Sensors and actuators, Noise, Test equipment and instrumentation

Method and Software Tool for Evaluation and Automated Generation of Space Habitat Interior Layouts

The software can help design space habitats, submarines, ships, aircraft, recreational vehicles, and small residences.

NASA has developed a new software tool for optimizing interior layout designs of highly constrained, highly integrated, and/or confined spaces, such as space habitats. This tool will automatically generate or evaluate interior layout options while taking into account multiple end-user objectives. Development and evaluation of interior layouts are often ignored during conceptual design because of the subjectivity and long times required using current evaluation methods (e.g., human-in-the-loop mockup tests and in-depth CAD evaluations). The NASA tool will allow for early, more objective assessment that will prevent expensive design changes, which can increase vehicle mass and compromise functionality.

Posted in: Briefs, Software, CAD, CAM, and CAE, Storage, Spacecraft

Airborne Wind Profiling Algorithm for Doppler Wind Lidar

This novel method enables accurate, real-time parameter estimation in noisy environments.

NASA’s Langley Research Center has developed an algorithm, Airborne Wind Profiling Algorithm for Doppler Wind Lidar (APOLO), that offers highly accurate, real-time measurement of wind parameters (i.e., direction and speed) by airborne wind lidar sensors. APOLO enables the extraction of accurate wind speed and direction from noisy flight environments, and provides correction for instrument installation biases. The algorithm has been incorporated into a supporting software package that displays accurate airborne Doppler wind lidar data, and offers several data post-processing and display functionalities. The offset compensation and parameter extraction technology could be used in a variety of applications where the motion and orientation of a lidar sensor may result in data inaccuracy. NASA is seeking licensees that may benefit from integration of the compensation algorithm and data post-processing software into existing or developing systems.

Posted in: Briefs, Software, Mathematical models, Lidar, Data management, Test equipment and instrumentation, Aerodynamics

NETMARK Fast Search

Applications include enterprise knowledge management, and document and content management systems.

The problem that motivated this work was one of analyzing hundreds of thousands of records of historical problem failure reports (aka, problem reports and corrective actions — PRACA) for improved mission safety. Whenever there is an anomaly in mission design or operations, the anomaly gets entered into a problem failure reporting database for tracking purposes. The objective of the research was to make this data queryable and analyzable using the NETMARK XML database.

Posted in: Briefs, Software, Failure analysis, Computer software and hardware, Data management, Research and development, Technical review

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