| R&D100: 2005 : Summaries
2005 R&D 100 Awards Entry Summaries
CartaBlanca: A High-Efficiency, Object-Oriented, General-Purpose Computer Simulation Environment
CartaBlanca brings the tremendous efficiency of the Java programming language to the world of scientific computing. CartaBlanca is a state-of-the-art, object-oriented simulation software package poised to offer next-generation modeling and simulation capabilities to scientists in a number of disciplines. Written in the "developer friendly" Java language, it enables computer code developers to simulate complex nonlinear effects such as airflow through a turbo booster, blast effects on buildings, or heat transfer along a semiconductor. Because it is a Java-based software package, the code is much easier to use, manipulate, and modify than codes based on programming languages such as FORTRAN or C++. CartaBlanca takes advantage of the improved execution speed offered by the HotSpotTM compiler and opens up the field of physical modeling to a much broader set of programmers. CartaBlanca is modular and allows for rapid software application or simulation code prototyping; strong, extensive compiler checking; plug-and-play module insertion for modeling physical systems; solutions with consistent results; and integrated unit and regression testing.
MESA: Measuring Enzyme-Substrate Affinities
MESA is a low-cost assay for detecting the binding of drugs to proteins (and other biomolecules and cell structures) without the biasing influence of added fluorescent molecular labels. The assay images drug-protein binding using atoms intrinsic to drug molecules themselves. Because of this label-free detection, MESA captures and quantitates all drug-protein binding, including potentially therapeutic and potentially toxic bindings. This allows MESA measurements to generate a complete therapeutic index early in the drug-development process. Today's high drug-development failure rate—the primary cause of the high cost of new drugs—is driven by the inability to measure more than an infinitesimal number of protein-drug interactions. MESA's ability to measure a very large number of these interactions and its resulting early detection of toxicity could save hundreds of millions of dollars in drug-development costs.
nanoFOAM: A Metal-Nanofoam Fabrication Technique
We developed the nanoFOAM technique to produce self-supporting, nanoporous metal foams by igniting a pressed pellet of a special compound in an inert atmosphere. The compounds are high-nitrogen transition-metal complexes synthesized with a low-cost, high-volume method that we developed. Nanofoams produced to date include iron, cobalt, copper, and silver. The nanofoams have pore diameters of 20 nanometers to 1 micrometer, surface areas as high as 258 meters-squared per gram, and densities as low as 0.01 gram per cubic centimeter. These values compare favorably with those of silica aerogels, the lightest known solids.
Nanofoams could be used to improve the efficiencies of
Nanofoams could also be used to
NESSUS: Probabilistic and Uncertainty Analysis for Large Scale Complex Systems
NESSUS is a general-purpose tool for computing the reliability of engineered systems. It was originally developed by a team led by Southwest Research Institute (SwRI) as part of a 10-year NASA project to develop a probabilistic design tool for the space shuttle main engine. Recently, a team consisting of members from Los Alamos National Laboratory and SwRI enhanced and applied NESSUS to the Laboratory’s weapon reliability assessments for Stockpile Stewardship Program. New features include support for extremely large multi-physics models, a sophisticated Java-based graphical user interface, three-dimensional probability contouring and results visualization,advanced design of experiment and sensitivity analysis,probabilistic input database, and interfaces to ABAQUS, ANSYS, LS-DYNA, MSC.NASTRAN and ParaDyn.
BeFinder: Rapid Assay for Beryllium Detection
A 45-minute assay for the presence of beryllium, BeFinder provides an inexpensive and unambiguous method for assessing the health and safety risks to beryllium-industry workers and for protecting the public from exposure to this toxic metal. With chronic, degenerative lung disease the potential consequence of even a small exposure to beryllium particles, a fast, accurate detection assay is now available for industries that use beryllium in manufacturing—e.g., electronics, sporting goods, tools, jewelry, and dental crowns—as well as for companies or agencies that perform environmental testing of potentially contaminated sites. BeFinder provides a convenient, inexpensive, and highly portable method for frequent and reliable testing, promoting prompt remediation and preventive measures. BeFinder is being considered as a NIOSH and ASTM standard for beryllium screening.
Beryllium detection in the following situations:
Diode-Directed Marx Modulator: A Pulsed-Power Source with GroundBreaking Architecture
A team of engineers at Los Alamos has developed a new type of solid-state Marx modulator with the demonstrated ability to control pulse width, duty factor, and wave shape from one pulse to the next. The team attained this result with a circuit architecture that significantly improves the fault tolerance, efficiency, and compactness of Marx-style modulators and combines it with precise process control. A Marx modulator with these capabilities opens the door to advanced applications ranging from health care to space vehicles to homeland defense, all in a package roughly 100 times lighter and smaller than a comparable device costing 10 times as much.
Our modulator will make possible smaller, lighter, less expensive, and more capable versions of products and devices and enable other, entirely new applications. Some examples:
Hands-Off Sampler Gun: An Investigator's Best Friend
In recent years, high-visibility courtroom trials and television shows such as CSI (Crime Scene Investigation) have heightened public attention to sample collection and recordkeeping. Unfortunately, devices used to collect samples are often highly specialized, require separate procedures to use, and could expose an investigator to hazardous substances. Moreover, recordkeeping is usually done by hand, a time-consuming, error-prone process. The Hands-Off Sampler Gun overcomes these shortcomings. It comes with a universal adapter that can use virtually any type of sampling media, a hands-off loading/unloading mechanism that eliminates direct contact with a sample, and a built-in electronic data-acquisition system that eliminates manual recordkeeping. These features make the Sampler Gun an investigator's best friend.
LITES: A Laser Reader for Personal Neutron Dosimeters
LITES measures the surface densities of microscopic “pits” chemically etched on the surfaces of clear-plastic dosimeter chips. During etching, a pit forms at the intersection of a neutron-produced “damage track” and a chip surface; the pit density is proportional to the neutron dose. Existing chip-reading methods count the pits one by one. In contrast, LITES measures the simultaneous, collective effect of the pits on a laser beam passing through a chip by measuring the intensity of the light scattered by the pits. LITES accurately reads neutron doses up to 5 rem for a 15-hour etch, meeting the DOE's requirement for neutron dosimetry, while conforming to the Los Alamos standard etch time. For a 6-hour etch, LITES accurately reads neutron doses up to 50 rem, making LITES useful for accident dosimetry as well as routine dosimetry. In addition to the applications cited below, LITES can be used to measure the amount of radon gas in a home from radon's alpha-particle emissions.
The Lustre File System Technology
The Lustre project started three years ago as an exploration of object storage on the Linux platform. Lustre introduced an innovative object storage software stack that enables modular development of client/target networking, storage management, and file system modules to address High Performance Computing (HPC) requirements for scalable file management for the terascale Advanced Strategic Computing Initiative computing environment. The file management solution scales to tens of gigabytes/sec, tens of thousands of file operations/sec, management of tens of thousands of clients and thousands of storage devices, and dozens of metadata servers. Lustre is targeted for the extremely large-scale Linux Cluster Supercomputing environment. It has a networked environment with three types of systems: clients with access to the file system, object storage targets that control persistent storage but have extensive capabilities for “on-controller-processing,”
HP and Cray offer products that use this technology. An open source version is available from Cluster File Systems, a file systems technology company. The object file systems technology is applicable for
Mobile and Modular Nuclear Facilities
In the United States, there are more than 100 nuclear facilities whose combined acreage is equivalent to the size of Rhode Island and Delaware combined. Many facilities have thousands of metric tons and millions of liters of various nuclear material wastes, as well as contaminated tools and clothing, metal scrap, solvents, and other waste. Unfortunately, no infrastructure exists for characterizing, treating, and packaging these wastes. The traditional solution to this problem has been to construct waste-handling facilities on site, but such facilities are expensive to build, only to be torn down once their mission is complete. To address this problem, Los Alamos has developed a mobile and modular transportainer that meets stringent safety and security requirements stipulated by the DOE. This portable and self-contained “trailer” can be customized to carry the equipment and resources necessary to characterize, treat, and package waste or perform other nuclear operations.
These facilities can be used to
Network Express: Software for Modeling Systems Properties of Biological Response Networks
Network Express models the interdependent genetic, metabolic, and signaling processes of biological response networks for systems-level analyses of cellular responses to external stimuli. Representative stimuli include drugs, radiation, allergens, toxins, microorganisms, and other agents involved in inflammation. Both experimental data and metabolic/genetic information are used to generate the networks, which are refined through computational optimization. This predictive tool provides graphical output for precise description of network responses. It has demonstrated the capability for subtle discrimination among responses to apparently similar drugs and has been used to model human signaling networks as well as ecological and agricultural networks.
NOX HyCat: A New Catalytic System for Diesel Engines
No catalytic system has yet been commercialized that can eliminate nitrogen oxides (NOX) from the exhaust of vehicles powered by diesel and other lean-burn engines. The problem is temperature: a successful system must operate over the full range of temperatures found in vehicle exhaust: 150°C to more than 500°C, the low temperatures being the most problematic. Our NOX HyCat is the first catalytic system to span that temperature range. The system includes a brand-new, iron-containing, zeolite catalyst that is augmented with cerium-manganese oxide, an oxidizer that produces a near-optimum ratio of NOX components to speed up the catalytic reaction and enable the zeolite to operate efficiently as a low-temperature catalyst. We combine this new low-temperature catalyst with a conventional high-temperature catalyst in a "dual-bed" configuration that provides high rates of NOX conversion over the broadest temperature range ever achieved. It operates efficiently from 113°C to as high as 600°C, includes no expensive precious metals, requires no complex engine controls, and is compatible with existing manufacturing techniques.
The NOX HyCat is the first NOX-reduction system for diesel engines that can be used in vehicles such as
Reversible Electrotint Windows
Most office buildings are literally made up of windows—for example, the Sears Tower in Chicago has 16,000. During spring and summer, the heat from sunlight, coupled with the heat from people, lights, computers, and other equipment, often means that buildings must run air conditioning until the outside temperature falls to freezing. Permanently tinting the windows presents a different problem during the fall and winter when sunlight helps keep buildings warm. To address these problems, we have developed windows that can quickly go from a colorless to a deeply colored—or mirrored—state and back again. Our windows let in 75% of visible light during fall and winter and block 90% of light during spring and summer.
Scenario Library Visualizer: The Calm during the Storm
On September 24, 2004, Hurricane Jeanne struck the Florida coast, knocking out electricity to more than 1.7 million homes, businesses, and institutions. In just eight days, first responders restored power, thanks in part to the Scenario Library Visualizer (SLV). SLV is a software package that consists of a catalog of presolved scenarios that a user can modify electronically to analyze and visualize electrical blackouts during an unfolding natural disaster, such as a hurricane or tsunami, or a manmade catastrophe, such as an industrial accident or terrorist attack. Based on such predictions, first responders can restore power quickly to the neediest areas. SLV generates results within four hours. Moreover, SLV provides decision makers and concerned citizens detailed information about power availability and schedule restoration. SLV runs on medium-performance laptops preferred by first responders and requires minimal training to use.
VICTOR: A New Paradigm for Artificial Visual Perception
VICTOR (Vectorized Image Characterization by Triangulation, and Object Reconstruction) is a software package that provides a versatile and comprehensive computational framework for developing new algorithms for artificial visual perception. Using principles from cognitive psychology to emulate human visual perception, VICTOR recognizes objects with complex shapes, regardless of orientation or apparent size, as well as objects with moving parts. VICTOR performs many object-recognition tasks now performed by humans. To recognize an object, VICTOR converts a pixel image to a high-quality vector image, typically reducing the size of a JPEG image by a factor of about four and the sizes of other image types even more. Image compression can be performed independently of object recognition and is fast enough for real-time video applications. VICTOR's modular structure can accommodate a wide range of existing algorithms used for artificial visual perception as well as algorithms to be developed in the future.