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Crystal Mystery Solved



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Tech Needs of the Week

A wide range of new processing and preparation technologies for use in pharmaceutical preparation is sought. Such technologies may enhance current chemistry processes such as finer milling that leads to faster in-process reactions. Or, the technologies may be applicable to pharmaceuticals after preparation, such as techniques for better tablet-forming, encapsulation techniques, or techniques for preparation of non-traditional delivery mechanisms. Technologies that offer improved shelf-life or transportation protection to the pharmaceutical irrespective of its eventual external packaging are preferable. Click here for more info.

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Next-Generation Car Engines Optimized to Improve Gas Mileage

This paper examines the simulation and thermal optimization of a wide-range oxygen sensor, which helps to regulate clean and efficient motor operation. The setup of the finite element model of the oxygen sensor is discussed in detail, along with how the sensor’s geometry and material properties were optimized for thermal loads that represented worst-case operating conditions. Developed by Delphi Corporation, a provider of mobile electronics and transportation components, the completed sensor design currently is being integrated into the next generation of car engines to increase fuel efficiency and reduce environmentally unfriendly exhaust emissions. Engines featuring these sensors are expected to be used in 2004.

Posted in: Software, Briefs

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Software To Secure Distributed Propulsion Simulations

CORBASec brings role-based security to CORBA-object-wrapped simulations. Distributed-object computing systems are presented with many security threats, including network eavesdropping, message tampering, and communications middleware masquerading. NASA Glenn Research Center, and its industry partners, has taken an active role in mitigating the security threats associated with developing and operating their proprietary aerospace propulsion simulations. In particular, they are developing a collaborative Common Object Request Broker Architecture (CORBA) Security (CORBASec) test bed to secure their distributed aerospace propulsion simulations. Glenn has been working with its aerospace propulsion industry partners to deploy the Numerical Propulsion System Simulation (NPSS) object-based technology. NPSS is a program focused on reducing the cost and time in developing aerospace propulsion engines.

Posted in: Software, Briefs, TSP

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Software for Displaying High-Frequency Test Data

An easy-to-use, intuitive computer program was written to satisfy a need of test operators and data requestors to quickly view and manipulate high-frequency test data recorded at the East and West Test Areas at Marshall Space Flight Center. By enabling rapid analysis, this program makes it possible to reduce times between test runs, thereby potentially reducing the overall cost of test operations. The program can be used to perform quick frequency analysis, using multiple fast- Fourier-transform windowing and amplitude options. The program can generate amplitude-versus-time plots with full zoom capabilities, frequency-component plots at specified time intervals, and waterfall plots (plots of spectral intensity versus frequency at successive small time intervals, showing the changing frequency components over time). There are options for printing of the plots and saving plot data as text files that can be imported into other application programs. The program can perform all of the aforementioned plotting and plot-data-handling functions on a relatively inexpensive computer; other software that performs the same functions requires computers with large amounts of power and memory.

Posted in: Software, Briefs

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Software for Improved Extraction of Data From Tape Storage

A computer program has been written to replace the original software of Racal Storeplex Delta tape recorders, which are used at Stennis Space Center. The original software could be activated by a command- line interface only; the present software offers the option of a command-line or graphical user interface. The present software also offers the option of batchfile operation (activation by a file that contains command lines for operations performed consecutively).

Posted in: Software, Briefs

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National Nano Engineering Conference

NASA Tech Briefs' 2007 National Nano Engineering Conference (NNEC) is being held November 14-15 at the Marriott Boston Copley Place. The NNEC is the premier event focused on current and future nano- technology developments. The event also includes the presentation of the third annual Nano 50™ Awards with a special awards dinner on November 14. Dr. Robert M. K. Carlson will be the featured speaker at the awards dinner.

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