28 years of experience as a technician, including 25 years in support of Naval Research Laboratory programs. Responsible for electrical, electronic, and mechanical design of special laboratory apparatus and/or prototypes. Broad technical expertise is of particular value during field studies. Participated in the development of experimental equipment and is experienced in making measurements, conducting tests, and carrying out technical procedures requiring electrical, mechanical, and engineering skills. Expanded research interests to include fractography and failure analysis of ceramics, polymers, and metals-primarily aluminum alloys, high-strength steels, and titanium alloys.
Excellent communication techniques
Technical plan execution
Material handling systems
Facility and plant modifications
PERFORM ELECTRICAL, ELECTRONIC, AND MECHANICAL DESIGN OF SPECIAL LABORATORY APPARATUS AND/OR PROTOTYPES. PROVIDED TECHNICAL SUPPORT INCLUDING SET-UP OF DATA ACQUISITION SYSTEMS, SENSORS, ELECTRICAL AND MECHANICAL WORK, INSTRUMENT CALIBRATION AND REPAIR, AND MACHINING. CONDUCTED FIELD INVESTIGATIONS ON THE FAILURE OF STRUCTURES SUCH AS AIRCRAFT AND SHIP SUBSYSTEMS. LOGISTICS SUPPORT FOR FIELD TRIALS AND WRITES FIELD TEST REPORTS.
Technician September 1989 to CurrentLeidos, Naval Research Laboratory － Washington, DC
Provides technical support to Naval Research Laboratory clients, including set-up of data acquisition systems, sensors, electrical and mechanical work, instrument calibration and repair, and machining.
Conducts inspection, failure analysis, and nondestructive evaluation tasks, requiring a broad range of technical skills.
Dissects and analyzes damaged composite structures, using the techniques of fractography, metallography, scanning electron microscopy, x-ray scattering tomography, light microscopes, micro-hardness testers; photographic equipment and processors.
Installs and operates field data acquisition and monitoring systems for trials of improved combat systems.
Conducts field investigations of the failure of structures such as aircraft and ship subsystems.
Provides technical support to the group for various electronic and mechanical tasks.
Provides logistics support for field trials, including development of equipment lists and deployment checklists, pre-test setup and calibration, maintenance of deployment log books, and equipment shipping and transportation requirements.
Contributes to field test reports and periodic progress reports.
Installation Technician May 1986 to September 1989Dyncorp － Springfield, VA
Installed security equipment and systems in US missions abroad.
Tested, calibrated and repaired equipment. Documented technical systems to comply with government standards and regulations.
Certificate : ELECTRONIC TECHNOLOGY, 1986COMMONWEALTH COLLEGE － Alexandria, VA, US
American Society for Non-Destructive Testing
E.C. Greenawald, L. J. Levenberry, N. Qaddoumi, A. McHardy, R.Zoughi, and C.F. Poranski, Jr., "Microwave NDE of Impact Damaged Fiberglass and Elastomer Layered Composites," Review of Progress in Quantitative Nondestructive Evaluation, Vol. 19, Plenum, 2000. E.C. Greenawald, E.T. Bellinger, Jr., L. J. Levenberry, and C.F. Poranski, Jr., "Characterization of X-Ray Backscatter Tomography System Performance," Review of Progress in Quantitative Nondestructive Evaluation, Vol. 18, Plenum, 1999. C.F. Poranski, E.C. Greenawald, L.J. Levenberry, and Y.S. Ham, "X-Ray Backscatter Inspection of Sonar Domes," 1998 NRL Review, Naval Research Laboratory, Washington DC. (Special Award: outstanding paper from Materials Science and Component Technology Directorate) E.C. Greenawald, L.J. Levenberry, E.T. Bellinger, Jr., and C.F. Poranski, Jr., "Underwater X-ray Tomography of Composite Sonar Domes via Collimated Backscatter Imaging," Proceedings, SPIE conference on Nondestructive Evaluation Techniques for Aging Infrastructure and Manufacturing, San Antonio, Texas, March 1998. C.F. Poranski, E.C. Greenawald, E.T. Bellinger, and L.J. Levenberry, "Pierside Inspection of Sonar Rubber Domes, Mayport Naval Station, January 1997," Proceedings, 46th Defense Working Group on Nondestructive Testing, Yuma, Arizona, November 1997. C.F. Poranski, E.C. Greenawald, and L.J. Levenberry, "X-Ray Backscatter Tomography System for Underwater NDE of Sonar Rubber Domes," Proceedings, 45th Defense Working Group on Nondestructive Testing, Palm Beach Gardens, Florida, October 1996. Y.S. Ham, E.C. Greenawald, L.J. Levenberry, K.J. Riley, and C.F. Poranski, "X-ray Backscatter Evaluation of Divertor Plate Armor Tiles in Plasma Fusion Reactors," Proceedings, 3rd Topical Meeting on Industrial Radiation and Radioisotope Measurements and Applications, Raleigh NC, October 1996. E.C. Greenawald, L.J. Levenberry, K.J. Riley, C.F. Poranski, R.K. Everett, K.E. Simmonds, and N.K. Batra, "Xray Backscatter Evaluation of Porosity Distribution in Low Density Porous Magnesium," Review of Progress in Quantitative Nondestructive Evaluation,Vol. 16, Plenum, 1997. C.F. Poranski, E.C. Greenawald, L.J. Levenberry, and K.J. Riley, "Evaluation of Hemispheric Acoustic Transducers via X-Ray Backscatter Tomography," Proceedings, US-Japan Symposium on Advances in NDT, Kahuku Hawaii, ASNT and JSNDI, June 1996. C. Draper, E.C. Greenawald, L.J. Levenberry, and C.F. Poranski, "NDE of Low-Level Radioactive Waste Barrels by X-ray Backscatter Imaging," presented to the ASNT Fall Conference, Dallas, TX, Oct. 1995, published in paper summaries book. E.C. Greenawald, C. Draper, L. Levenberry, Y.S. Ham, and C.F. Poranski, "Underwater X-Ray Tomography Using Compton Backscatter Imaging," Review of Progress in Quantitative Nondestructive Evaluation, Vol. 15, Plenum, 1996. C. F. Poranski, Y.S. Ham, E. C. Greenawald, C. Draper, J. Chow, and L. Levenberry, "X-Ray Backscatter Tomography for Nondestructive Evaluation at NRL", Nondestructive Evaluation of Aging Maritime Applications, R.B. Mignona, ed., SPIE Proceedings Vol . 2459, June 1995. J.F. Covey, L.J.Levenberry, and D.B. Weaver, Sonar Dome Reliability XVIII: Measured Deflections of the USS Kauffman Sonar Rubber Dome, NRL MR 7135-93-7436, Jan. 1994.
Calibration, data acquisition, logistics, mechanical, research, scanning, shipping, technical support.