The finding that Russia is in violation of its obligations under the Intermediate-Range Nuclear Forces Treaty has raised doubts about its durability. If the treaty cannot be revived, the United States could choose to add conventional land-based theater ballistic missiles to its arsenal. The U.S. Army should start a rigorous assessment of the potential military value and potential strategic risk...

The impact resistance of commonly used eye protector lens materials is measured with a ballistic system, using YA inch (6.3 mm.) and Vs inch (3.2 vim.) steel balls. The results, taken in conjunction with the findings of earlier drop-tower work, permit a comprehensive evaluation of the impact resistance of 3 mm. and 2 mm. thicknesses of allyl resin and thermally toughened glass against a series ...

ted to allow efficient ballistic missiles , the paper describes a recently developed ted estimation/guidance design paradigm n several innovative concepts that provides satisfactory homing performance against ly maneuvering targets. The new paradigm veloped and tested first by using a simplified constant speed interception scenario model. paper the integrated estimation/guidance m is validated ...

The idea of ballistic missile defense (BMD) is not new. It originally emerged in the early years of the Cold War as part of the overall strategic competition between the United States and the Soviet Union. The notion that ballistic missiles could be intercepted and destroyed in flight offered the prospect of a system of security based upon an “active defense” rather than the unnerving notion of...

The terrorist attacks of September 11, 2001 illustrated in graphic terms the vulnerability of the United States to asymmetrical attack. The relative ease with which the nineteen Al Qaeda terrorists hijacked four airplanes and used them as deadly ballistic missiles was inconceivable to the citizens of the world’s only remaining superpower. In an instant, it became painfully clear that despite it...

The most common ballistic materials available in the urban setting were studied for their MR effects on deflection force, rotation, heating, and imaging artifacts at 1.5 T to determine the potential efficacy and safety for imaging patients with ballistic injuries. The 28 missiles tested covered the range of bullet types and materials suggested by the Cleveland Police Department. The deflection ...

The application of fuzzy logic for the development of guidance laws for homing missiles is presented. Fuzzy logic approximation of the well known proportional navigation guidance law is discussed, followed by the development of a blended guidance law using fuzzy logic. The objective of the latter guidance law is to combine desirable features of three homing guidance laws to enhance the intercep...