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Full-Text Articles in Physical Sciences and Mathematics
Risk-Based Critical Infrastructure Priorities For Emp And Solar Storms, George H. Baker Iii
Risk-Based Critical Infrastructure Priorities For Emp And Solar Storms, George H. Baker Iii
George H Baker
Two electromagnetic phenomena have the potential to create continental-scale disasters. The first, nuclear electromagnetic pulse (EMP), results from a nuclear detonation high above the tropopause. The second, a major solar storm, or "solar tsunami" occurs naturally when an intense wave of charged particles from the sun perturbs the earth's magnetic field. Both phenomena can debilitate electrical and electronic systems necessary for the operation of infrastructure systems and services. One reason why a U.S. protection program has yet to be initiated is that policy makers continue to wrestle with the question of where to begin, given the Department of Homeland Security’s …
Risk-Based Critical Infrastructure Protection Priorities For Emp And Solar Storms, George H. Baker Iii
Risk-Based Critical Infrastructure Protection Priorities For Emp And Solar Storms, George H. Baker Iii
George H Baker
The Commission to Assess the Threat to the United States from Electromagnetic Pulse Attack has provided a compelling case for protecting civilian infrastructure against the effects of EMP. As with protecting infrastructure against any hazard, it will be important to take a risk-based priority approach for EMP, recognizing that it is fiscally impracticable to protect everything. In this regard, EMP is particularly challenging in that it interferes with electrical and electronic data, control, transmission, and communication systems organic to nearly all infrastructures in a simultaneous and wide-scale manner. And, for nuclear burst altitudes of 100s of kilometers, the exposed geography …
Emp: A Brief Tutorial, George H. Baker Iii
Emp: A Brief Tutorial, George H. Baker Iii
George H Baker
A nuclear detonation at altitudes from about 30 to 500 kilometers generates a strong electromagnetic pulse (EMP) that propagates to points on the ground within the line-of-sight of the burst. For bursts above 100 kilometers, electronics can be affected over continental scale areas. The EMP induces large voltages and currents in antennas and cables of electronic systems that will upset operation or damage circuit components if protection measures are not present. The article provides a brief tutorial on EMP environments, effects and protection.
High Power Electromagnetic Weapons: A Brief Tutorial, George H. Baker Iii
High Power Electromagnetic Weapons: A Brief Tutorial, George H. Baker Iii
George H Baker
High power electromagnetic weapons, also referred to as high power radiofrequency (HPRF) weapons, are a type of directed energy weapons. The system effects of high power electromagnetic environments are well recognized by world scientific and military communities. Former CIA Director John Deutch has said that, "the electron is the ultimate precision-guided weapon." In the course of the investigation ofnuclear EMP effects on electronics during the Cold War period, it became evident that garden variety, unprotected electronics would malfunction, in some cases burn out, in the presence of electromagnetic fields in the hundreds to thousands of volts per meter. The EMP …
Using Social Media For Natural Disaster Resilience (Booklet), Neil Dufty
Using Social Media For Natural Disaster Resilience (Booklet), Neil Dufty
Neil Dufty
No abstract provided.
Engagement Or Education?, Neil Dufty
Implications Of Recent Research In Community Flood Education, Neil Dufty
Implications Of Recent Research In Community Flood Education, Neil Dufty
Neil Dufty
No abstract provided.
Final Report And Recommendations:Ministeria E Arsimit Dhe Shkences, Tirane, Albania, Robert Mccloud
Final Report And Recommendations:Ministeria E Arsimit Dhe Shkences, Tirane, Albania, Robert Mccloud
Robert McCloud
The emphasis of current policies has been on Internet connectivity, bridging the digital divide and raising awareness of ICT needs in the schools. As of January 2011, we are schedule to have dedicated Internet service of 1MB download and 256K upload per school. Every Albanian school with a headmaster will have this connectivity. The only schools that will be excluded are in those remote towns where five grades (1 through 5) are consolidated into a single class. It is unfair to exclude these students. If their schools are going to stay open, then they should also be included in the …