Award Data

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 ...

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 ...

RESIDUAL LIFETIME EVALUATION OF EXISTING NUCLEAR FACILITIES REQUIRES DETAILED INFORMATION REGARDING CONDITION OF CONTAINMENT AND SUPPORT STRUCTURES. CURRENT NONDESTRUCTIVE METHODS FOR SUBSURFACE EVALUATION OF REINFORCED CONCRETE USE COMPLEX EQUIPMENT AND RELY HEAVILY ON INTERPRETATION BY THE OPERATOR. A RESEARCH EFFORT IS PROPOSED TO EXAMINE THE USE OF COMPUTERIZED TOMOGRAPHIC IMAGING FOR LOCATING ...

A pulsed coherent 2 lim diode-pumped solid-state lidar has excellent capability of meeting Navy requirements for remotely measuring atmospheric wind fields. The proposed 2 #m diode-pumped coherent lidar will be capable of pulse energies of -20 mJ/pulse and a PRF of >100 Hz, with a pulse duration of 200 us. Coherent Technologies, Inc. has developed the first 1.06 and 2.09 ,im flashlamp-pumped Coher ...

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This investigation addresses an exploratory development effort whioh applies an innovative adaptation of plasma arc surfacing technology to facilitate the convenient introduotion of a diffusional coating layer out of the surface of A-625 alloy flanged pipe conneCtions such a strategy will be expected to arrest crevice corrosion and related phenomenon The approach will be to modify plasma arc surfa ...

Development of the capability to predict flow fields around naval ships,submarines in particular, both accurately and efficiently is crucial to the Navy in the design of naval ships. State-of-the-art Reynolds-averaged Navier-Stokes solvers are capable of predicting the general flow field a=out an appended submarine , but there are two major shortcomings: the long computing time required and the la ...

It is proposed that the wide range of nonmilitary applications for DoD UAVs be identified and assimilated into a representative set of mission profiles and vehicle specifications, to identify the DoD UAVs that could be used to conduct such missions and to meet such specifications, and to identify opportunities to significantly leverage DoD development and acquisition resources by eliminating ident ...

THE PURPOSE OF THIS EFFORT IS TO STUDY THE FEASIBILITY OF AND, HOPEFULLY, VALIDATE THE USE OF TASK NETWORK MODELING TOSTUDY HUMAN FACTORS IN THE CONTROL ROOM. TASK NETWORK MODELING EXTENDS A HUMAN ENGINEERING TASK ANALYSIS INTO A COMPUTER MODEL. WE PROPOSE THAT PERTURBING THE INDIVIDUAL TASKS IN A TASK NETWORK MODEL IN A MANNER PREDICTED FROM CONTROL ROOM DESIGN CHANGES, TASK AUTOMATION, OR THE CO ...