Award Data

Silicon-based photoconductive switch technology, despite its widespread industrial use, has not reached its limit in repetition-rate nor recovery-time. While traditional Si-PCSS systems have demonstrated poor recovery time (tens to hundreds of microseconds), new understanding in absolute photo-carrier generation and the resultant reduced sweepout time, provides one means to get beyond this seeming ...

In this STTR effort, TDA and its team partner Northeastern University will focus on developing an innovative computational tool based on Phase Field Modeling approach for prediction of crack initiation and propagation under a variety of loading and environmental conditions. The proposed PFM computational framework accounts for both brittle and ductile fracture, including crack initiation and crack ...

ABSTRACT: Chalcogenide glass fibers are commercially available and are used for delivery of mid-infrared wavelengths (1.5um to 6.5um).These fibers allow compact, robust and low-weight laser platforms designs.Laser systems in high-power and high-stress environments find their reliability and performance limited due to free-space optical components.Free-space components suffer from vibration and the ...

Composite materials have emerged as the materials of choice for increasing the performance and reducing the weight and cost of military aircraft. Nevertheless, manufacture of composite parts still poses numerous difficulties which can result in premature curing, degradation in thin cross-sections, incomplete curing in thick counterparts or build-up of internal stresses. Experimental investigations ...

ABSTRACT: The necessity of cold-chain transport is a critical deficiency for a large number of vaccines, therapeutics, and drugs. More than 17 million people die every year from infectious diseases, particularly in the developing world. Many of these deaths could be prevented by vaccination, however heat-sensitivity and the need for cold-chain transport has resulted in underutilization of vaccines ...

ABSTRACT: Material extrusion 3D printing is an Additive Manufacturing method which utilizes a polymeric monofilanment as a feedstock in the fabrication of 3D objects. The relative simplicity compared to other AM technologies makes it an attractive manufacturing tool, however, characteristics inherent to this 3D printing method (namely air gaps between print rasters) makes it undesirable for the 3D ...

ABSTRACT: The proliferation of autonomous- and human-machine systems necessitates the creation of new tools for system design and evaluation. Key among these are simulation testbeds that support interactions between multiple warfighters and systems, and methods for creating and integrating intelligent agent models into simulation environments. We see a significant opportunity to advance the state ...

Hull mounted sensor arrays are an important tool used to determine localized threat assessment. The location of these arrays on the ship is critical. They must be placed at the quietest location on the hull to minimize own-ship noise which can interfere with array sensitivity. To determine these quiet locations, Adaptive Methods has proposed incorporating vector sensing modules which can be tempor ...

ABSTRACT: Despite decades of research, machine hearing continues to be far less robust than human hearing. The difference is especially noticeable in reverberant environments which pose a critical limitation on the general utility of Human Language Technology. Voci Technologies Incorporated (Voci) is the leading small business developing accelerated Human Language Technology based solutions. Voci ...

ABSTRACT: This project addresses the development and evaluation of high-quality low-dimensional (HQLD) sensor data selection and fusion (SDSF) algorithms. The objective is to develop algorithms that process the data from multiple sensors to reduce dimensionality while retaining the information content of the full-dimension data. An HQLD-SDSF algorithm will be developed within the context of a like ...