Award Data

N/A

The development of a simple, reliable, and easily operated system to detect and measure airborne lead (Pb) to trace levels is the subject of the Phase I effort. Lead is toxic to humans at very low levels and is ingested easily by breathing air in which elemental Pb or compounds of this element are dispersed. In firing ranges there is an opportunity for shooters and range personnel to be exposed to ...

N/A

N/A

Dependability is an increasingly critical characteristic of the Navy's mission critical computer systems. These systems must be maintained in a state of readiness to support critical mission functions, and must be able to perform these functions correctly despite the presence of faults in system hardware and software components, and in the environments in which the systems operate. Automated tools ...

Formal methods based on rigorous mathematical specification and verification techniques have been shown to be a feasible way of identifying design errors early in the development of complex, ultrareliable computer systems. However, the mathematical expertise required to exercise formal verification systems for non-trivial applications has restricted their use to formal methods experts. The purpose ...

A SYSTEM IDENTIFICATION TECHNICAL IS PROPOSED FOR NON-DESTRUCTIVE TEST TO DETECT UNBOUNDS IN LARGE BONDED COMPONENTS. THE TECHNIQUE USES THE SYSTEM'S TIME RESPONSE DATA DUE TO RANDOM INPUT EXCITATION. SYSTEM'S EIGENVALUES AND EIGENVECTORS ARE RETRIEVED FROM THE TIME RESPONSES AND USED FOR THE CONSTRUCTION OF ACCURATE SYSTEM MATHEMATICAL MODELS. SYSTEM'S CHANGE DUE TO CRACKS, VOIDS, UNBONDS BETWEEN ...

METHODS ARE DESPERATELY NEEDED TO DISCERN THE STRUCTURAL INTEGRITY OF CRITICAL COMPONENTS OF WEAPON SYSTEMS SUCH AS PRESSURE VESSEL CASES. AT THIS TIME, NO TECHNIQUE EXISTS WHICH PERMITS A GLOBAL MONITORING OF THE OPERATIONAL READINESS OF ANY STRUCTURES, INCLUDING COMPOSITE MOTOR CASES. THE RANDOMDEC PROCEDURE, WHICH IS PLANNED TO BE UTILIZED UNDER THIS PROPOSED STUDY, APPEARS TO HAVE THE CAPABILI ...

Moller International (MI), the parent company of Aerobotics Inc. (AI), has been developing VTOl manned and unmanned aerial vehicles, called aerobots, for many years. The first electric aerobot used a 36 inch saucer-shaped composite airframe with four vertical ducts, each housing a small electric motor driving an eight inch propulsion fan. It was developed in 1986-87 under a contract funded by DARP ...

The development of fire protection and explosion suppression systems is of critical importance to the safety of both military and civilian aircraft. The phase out of Halon-based fire suppression systems has created a critical need for a compact, light weight, and effective alternative for use in aircraft and other applications. The Navy has identified fine water mists and high speed delivery syste ...