Modeling short-range ballistic missile defense and Israel's Iron Dome system

This paper develops a model of short-range ballistic missile defense and uses it to study the performance of Israel’s Iron Dome system. The deterministic base model allows for inaccurate missiles, unsuccessful interceptions, and civil defense. Model enhancements consider the trade-offs in attacking the interception system, the difficulties faced by militants in assembling large salvos, and the effects of imperfect missile classification by the defender. A stochastic model is also developed. Analysis shows that system performance can be highly sensitive to the missile salvo size, and that systems with higher interception rates are more “fragile” when overloaded. The model is calibrated using publically available data about Iron Dome’s use during Operation Pillar of Defense in November 2012. If the systems performed as claimed, they saved Israel an estimated 1778 casualties and $80 million in property damage, and thereby made preemptive strikes on Gaza about 8 times less valuable to Israel. Gaza militants could have inflicted far more damage by grouping their rockets into large salvos, but this may have been difficult given Israel’s suppression efforts. Counter-battery fire by the militants is unlikely to be worthwhile unless they can obtain much more accurate missiles.

Iron Mountain Route Railway schedule: the great through line St. Louis, Arkansas and Texas to the Hot Springs of Arkansas

Iron Mountain Route Railway schedule: the great through line St. Louis, Arkansas and Texas to the Hot Springs of Arkansas.

Letter to S.D. Woodruff from William Colburn with the letterhead “Office of Detroit Bridge and Iron Works”

Letter to S.D. Woodruff from William Colburn with the letterhead “Office of Detroit Bridge and Iron Works” regarding stating that he closed up the business with Dewey’s. He states that “we” now have “warranty deeds” from them for exclusive rights for all time for hunting, shooting and trapping, Mar. 20, 1884.

Letter to S.D. Woodruff from A. Jeffrey importer of Hardware, Iron, Steel, and Window Glass of St. Catharines, Ont.

Letter to S.D. Woodruff from A. Jeffrey importer of Hardware, Iron, Steel, and Window Glass of St. Catharines, Ont. A. Jeffrey says that he will be able to supply Mr. Woodruff with glass and iron pipe, June 7, 1875.

Letter to S.D. Woodruff from A. Jeffrey importer of Hardware, Iron, Steel, and Window Glass of St. Catharines, Ont.

Letter to S.D. Woodruff from A. Jeffrey importer of Hardware, Iron, Steel, and Window Glass of St. Catharines, Ont. regarding breakage and freight, June 23, 1875.

Receipt from A. Jeffrey importer of Hardware, Iron, Steel, Nails and etc

Receipt from A. Jeffrey importer of Hardware, Iron, Steel, Nails and etc. regarding payment received on glass panes, Nov. 12, 1875.

Receipt from Gourlay Brothers for iron thimble and stopper

Receipt from Gourlay Brothers for iron thimble and stopper, Sept. 9, 1876.

Receipt from Watkins and Harris, Wholesale and Retail Ironmongers, Toronto, Ontario for iron

Receipt from Watkins and Harris, Wholesale and Retail Ironmongers, Toronto, Ontario for iron, May 11, 1838.

Influence of functional groups of activated carbon in the anchoring of iron particles by forced hydrolysis and its use to remove hexavalent chromiun from aqueous solutions.

Tesis (Master of Science with orientation in Sustainable Processes) UANL, 2014.

Iron, steel and other alloys

UANL