Modern military uses of antennas have presented new challenges to the antenna designer. Only a decade ago, specific band antennas, or tall whips, met the needs of most communications, electronic warfare (EW) and surveillance applications. But with new needs and transceiver technologies, antennas have new challenges: wideband; small; and agile platforms, for software-defined radio (SDR) and mode...

In the early 1960s, LTC Richard L. Coppedge, Medical Corps, expanded the functions of the Office of the Surgeon for the Special Warfare Center at Fort Bragg, North Carolina. He drew upon the then recent Special Forces experience in Laos and the beginnings of Special Forces experience in Vietnam to reorient the Special Forces medical mission from guerilla warfare to counterinsurgency. With impro...

This paper proposes a new view of conflict in European Iron Age societies: considering isolationism as an alternative to warfare. Study of the castros (fortified settlements) of the Iberian Northwest suggests the organization of production as a main explanatory element in the emergence of identities based on exclusion and the imposition of communal structures of power. The relationship between ...

It is unlikely that Gulf War veterans are suffering chronic effects from illnesses caused by chemical warfare nerve agent exposure. Extensive investigation and review by several expert panels have determined that no evidence exists that chemical warfare nerve agents were used during the Gulf War. At no time before, during, or after the war was there confirmation of symptoms among anyone, milita...

The topic of cyber warfare is a vast one, with numerous sub topics receiving attention from the research community. We first examine the most basic question of what cyber warfare is, comparing existing definitions to find common ground or disagreements. We discover that there is no widely adopted definition and that the terms cyber war and cyber warfare are not well enough differentiated. To ad...

at the present study, different properties of sarin with the formula [(ch3)2cho]ch3pof was studiedin gas phase. geometrical optimizations of sarin, single point calculation, nmr and electricalparameters were carried out in gas phase with the hartee -fock method coupled to 6-31g* basis setsfor all atoms. the results obtained from a comparison between tables and charts came up fordiscussion and a...

use by the OPCW inspectorate. Use of GC with one or more spectrometric technique such as mass spectrometry is required to conRrm the presence of chemical warfare agents. For this reason many analyses are carried out by GC-MS under electron impact or chemical ionization conditions. For analyses involving low levels of chemical warfare agents in the presence of high levels of interfering chemical...

There is a spectrum of several threat agents, ranging from nerve agents and mustard agents to natural substances, such as biotoxins and new, synthetic, bioactive molecules produced by the chemical industry, to the classical biological warfare agents. The new, emerging threat agents are biotoxins produced by animals, plants, fungi, and bacteria. Many types of organisms produce substances that ar...