Special Coverage


Prototype Genomics-Based Keyed-Hash Message Authentication Code Protocol

This is targeted for applications without an available public key infrastructure. Goddard Space Flight Center, Greenbelt, Maryland Cryptography and molecular biology share certain aspects and operations that allow for a set of unified principles to be applied to problems in either venue. A DNA-inspired hash code system is presented that utilizes concepts from molecular biology. It is a keyed-Hash Message Authentication Code (HMAC) capable of being used in secure mobile ad-hoc networks. It is targeted for applications without an available public key infrastructure. Ad-hoc does not mean the users are completely unknown to each other. They could be part of a military unit, police, emergency workers, mobile vendors, or any collection of users in a common geographical area that wish to communicate in a region lacking a PKI (Public Key Infrastructure).

Posted in: Briefs, TSP, Electronics & Computers


Station Spacewalk

Ames Research Center, Moffett Field, California The Station Spacewalk game enables players to virtually conduct NASA repair work on the International Space Station, including jobs critical to help power up the space station so it can continue to operate. Players are provided with a limited quantity of oxygen during which they must complete extravehicular activities (EVAs) and return to the airlock before the air supply runs out.

Posted in: Briefs, Electronics & Computers


Product of the Month: December 2014

COMSOL, Burlington, MA, announced COMSOL Multiphysics® software version 5.0 that features product updates, three new add-on products, and the new Application Builder. The Application Builder lets users build applications for use by engineering and manufacturing departments, expanding accessibility to the expertise and to simulation solutions. The Application Builder enables engineers to make available an easy-to-use application based on their COMSOL Multiphysics model. Included with the Windows® operating system version of COMSOL Multiphysics® 5.0, the Application Builder provides tools needed to build and run simulation apps. Any COMSOL Multiphysics model can be turned into an application with its own interface using the tools provided with the Application Builder desktop environment. Other features include the Form Editor, in which the user interface layout can be designed, and the Methods Editor for implementing customized commands. The new version also includes a Ray Optics Module, Design Module, and LiveLinkTM for Revit®.

Posted in: Products, Simulation Software


Industry Roundtable: Analysis & Simulation Software

In our annual poll of executives at leading analysis and simulation software vendors, we found that both 3D printing and the cloud will have increasing impact on CAE in 2015, and users will demand additional multi-physics capabilities to simulate larger, more complex models.

Posted in: Articles, Simulation Software


Motor Drive Software

Teledyne LeCroy (Chestnut Ridge, NY) announced three-phase Motor Drive Power Analyzer software for its HDO8000 oscilloscopes for motor drive embedded control and power section debug. With the addition of three-phase power analyzer capability, and motor speed and torque integration, the drive system can be validated and debugged, and drive and motor power and efficiency measurements may be performed. The software is used by motor, motor drive, variable frequency drive, variable speed drive, industrial automation, and motion control equipment manufacturers. Design engineers that integrate motors into their designs also can utilize the software to validate proprietary controls and complete drive system designs.

Posted in: Products, Motors & Drives


NASA's Hot 100 Technologies: Information Technology & Software

Enhanced Project Management Tool This invention is a system for managing a project that includes multiple tasks and workers. Periodic monthly, task plan, schedule, and budget reports are generated and made available for display or further analysis. When the system receives a description of a skill set needed for a project, the skill set module is queried. The name and relevant skill(s) possessed by each worker is displayed in a visually perceptible format.

Posted in: Articles, Techs for License, Electronics & Computers


NASA Computer Model Reveals Carbon Dioxide Levels

An ultra-high-resolution NASA computer model has given scientists a stunning new look at how carbon dioxide in the atmosphere travels around the globe.Plumes of carbon dioxide in the simulation swirl and shift as winds disperse the greenhouse gas away from its sources. The simulation also illustrates differences in carbon dioxide levels in the northern and southern hemispheres, and distinct swings in global carbon dioxide concentrations as the growth cycle of plants and trees changes with the seasons.Scientists have made ground-based measurements of carbon dioxide for decades and in July NASA launched the Orbiting Carbon Observatory-2 (OCO-2) satellite to make global, space-based carbon observations. But the simulation — the product of a new computer model that is among the highest-resolution ever created — is the first to show in such fine detail how carbon dioxide actually moves through the atmosphere.In addition to providing a striking visual description of the movements of an invisible gas like carbon dioxide, as it is blown by the winds, this kind of high-resolution simulation will help scientists better project future climate. Engineers can also use this model to test new satellite instrument concepts to gauge their usefulness. The model allows engineers to build and operate a “virtual” instrument inside a computer.SourceAlso: Learn about the NASA Data Acquisition System (NDAS).

Posted in: News, Environmental Monitoring, Greenhouse Gases, Measuring Instruments