Crosslink Spring 2011 Contributors

Future Directions in Flight Software Assurance

Robert G. Pettit, IV (left), Senior Project Leader, Software Engineering Subdivision, has more than 20 years of experience in software engineering. He is widely recognized in the fields of model-based software engineering, real-time software systems, and the Ada programming language. He coleads the Flight Software and Embedded Systems Office, which is tasked with continuous improvement for software-related technologies. He is a senior member of IEEE and is an adjunct professor at George Mason University and Virginia Tech. He has a Ph.D. in information technology/software engineering from George Mason University.

Pettit, Nguyen, Hecht

Elisabeth A. Nguyen (center), Engineering Specialist, Software Systems Engineering Department, joined Aerospace in 2006. She has provided technical support to a number of programs in the areas of software systems reliability and dependability. Nguyen currently leads research efforts in assurance cases and model checking. She has a Ph.D. in computer science from the University of Virginia.

Myron J. Hecht (right), Senior Project Leader, Software Acquisition and Process Department, has supported GPS, SBIRS, AEHF, milsatcom, and civil and commercial programs in the areas of dependability, reliability, safety, and aviation certification. He is a senior member of IEEE and a consultant to the Nuclear Regulatory Commission and has served on standards committees for computers in nuclear power plants. Hecht has authored 90 publications on reliability as well as multiple Aerospace technical reports. He has an M.B.A., M.S. in nuclear engineering, and J.D. from UCLA.



The Next Big Thing: Nanomaterials Development for Space Technology Applications

Bruce H. Weiller (left), Senior Scientist, Micro/Nanotechnology Department, joined Aerospace in 1989, working in the Aerophysics Laboratory on chemical lasers, spectroscopy, and time-resolved kinetics. His technical interests include the development of nanostructured materials for chemical sensors and contamination issues in optics and high-powered lasers. Weiller is the author or coauthor of 78 scientific publications. He has a Ph.D. in physical chemistry from Cornell University.

Weiller, Hopkins, Livingston

Alan R. Hopkins (middle), Engineering Manager, Polymers, completed his postdoctoral training in chemistry at Caltech and the University of Florida before joining Aerospace. He is active in the American Chemical Society’s Division of Polymer Chemistry and cochaired a symposium on nanostructured polymers at the society’s 2010 national meeting; he also chaired a conference at Aerospace on carbon nanotubes for space applications. His research interests include electrically conducting materials, carbon nanotubes, structure/property relationships in blends, and nanocomposites. He has a Ph.D. in macromolecular science and engineering from the University of Michigan.

Frank E. Livingston (right), Research Scientist, Micro/Nanotechnology Department, studies the photophysics and chemistry of laser-material interactions, with particular expertise in laser-structured nanomaterials and photosensitive glass ceramics. Since joining Aerospace in 2001, he has supported many civil and commercial programs and is currently principal investigator of a multidisciplinary research program focused on new fabrication methods for uncooled infrared sensors and frequency-agile communication systems. He has coauthored more than 65 papers and book chapters. He has a Ph.D. in physical chemistry from UCLA.


Developing Nanoelectronics for Space Systems


Erica Deionno (left), Senior Member of the Technical Staff, Microelectronics Reliability and Radiation Effects, has designed, built, and tested polymer-based molecular electronic devices, conducted radiation testing of memristor-based memory devices, and developed experimental facilities for life-testing of MEMS spatial light modulators. She has a Ph.D. in chemistry from UCLA.

Jon V. Osborn (middle), Laboratory Manager, Microelectronics Reliability and Radiation Effects, has worked at Aerospace for more than 25 years. He was colead for the PicoSat-I and PicoSat-II missions, two of the smallest active networked Earth satellites to fly, and has worked in the field of radiation hardness by design. Most recently, he helped lead the development of the High Reliability Electronics Virtual Center for use in national security space systems. Osborn is a registered Professional Engineer in California and has an M.S. in electrical engineering from the University of Southern California.

Adam W. Bushmaker (right), Member of the Technical Staff, Microelectronics Reliability and Radiation Effects, received his Ph.D. in electrical engineering from the University of Southern California. His research interests include novel nanomaterials-based devices, terahertz electronics and photonics, and space science and technology. He received his B.S. in engineering physics from the University of Wisconsin, Platteville.



Ultrashort-Pulse Lasers for Space Applications



William T. Lotshaw, Laboratory Manager, Lidar, Atomic Clocks, and Laser Applications Section, joined Aerospace in 2005 and works in the Photonics Technology Department. He is a physical chemist with 26 years of experience in the technology and applications of ultrashort-pulse and solid-state lasers. He has a Ph.D. from the University of Chicago.



The Emergence of Machine-Augmented Composites

Tang, Hawkins

Ching-Yao (Tony) Tang (left), Member of the Technical Staff, Mechanics Research Department, joined Aerospace as an intern in 2001. Since becoming a regular employee in 2008, Tang has provided technical support in experimental and computational mechanics for national security space programs and is serving as coinvestigator on multiple commercial and DARPA programs involving armor, tire technology, novel materials, and underwater acoustic sources. He has a Ph.D. in aerospace engineering (propulsion) from Purdue University.

Gary F. Hawkins (right), Principal Director, Space Materials Laboratory, has recently been investigating the manufacture of composites with unique properties by embedding small, simple machines in a matrix material. His technical accomplishments are in the fields of materials sciences, nondestructive testing, rocket nozzle design, and manufacturing engineering. Hawkins has been granted 12 patents and has published more than 40 papers. He received his Ph.D. in physics from Wayne State University.


Nonlinear Dynamics and Chaos: From Concept to Application


SilvaChristopher P. Silva, Senior Engineering Specialist, Communications and Networking Division, began working at Aerospace in 1989 as a member of the Electronics Research Laboratory. Throughout his career at Aerospace, Silva has supported many projects, including private/secure communications, chaotic radar, analysis of nonlinear circuits, and multicarrier satellite communication channels. In 1999, he received the Aerospace President’s Achievement Award. He is a fellow of IEEE and a senior member of AIAA. Silva has a Ph.D. in electrical engineering from the University of California, Berkeley.



Qubit By Qubit: Advancing the State of Quantum Information Science and Technology


GassiterSamuel D. Gasster, Senior Scientist, Software Engineering Environments Computer Systems Research Department, joined Aerospace in 1988. He has supported a wide range of defense and civilian programs and agencies, including DMSP, NPOESS, DARPA, NASA, and NOAA. He has taught remote sensing and computer science at UCLA Extension and has been a judge at the California State Science Fair, software and mathematics section. He has a Ph.D. in physics from the University of California, Berkeley. He is a member of the American Physical Society, IEEE, the American Geophysical Union and the International Council on Systems Engineering (INCOSE).


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