Using NCCP’s Family Resource Simulator to Improve Policies for Low-Income Families Nancy K. Cauthen, PhD Acting Deputy Director NGA Center for Best Practices:
Domestic Space-Based PNT Interference Detection and Mitigation Captain Curtis L. Dubay, P.E. US Coast Guard Chairman, DHS Positioning, Navigation and Timing.
Combining Signed Numbers Adding and subtracting signed numbers.
CIRED 2009. Prague Congress Centre Czech Republic 8 - 11 June 2009.