Award Data

ABSTRACT:A cooperative small business and university research and development program is proposed to begin development of a robust, non-contacting, digital image correlation based, full-field strain measurement system for high temperature applications. The Phase I studies will demonstrate that a robust high temperature digital image correlation system (HTDICS) can be developed that is capable of a ...

We will evaluate a novel warming method, developed by our collaborator John Bischof, that promises solution of one of the remaining barriers for banking of large organs and vascularized composite tissues. The method involves radiofrequency and magnetic nanoparticles to obtain rapid uniform electromagnetic rewarming of biological materials instead of warming from the outer boundary using convection ...

The long term goal of the proposed research is to develop improved methods for cryopreservation of complex tissues at extreme low temperature. An innovative approach is taken in the proposed line of research, where synthetic ice modulators (SIMs) are combined with established cryoprotective agent (CPA) cocktails to create more favorable conditions for cryopreservation in a process known as vitrifi ...

A user-friendly software package for rapid fatigue evaluation of specific scalable flaw geometries, as well as stable tearing after crack length reaches a specified size, is being developed. The package will employ modified CRACK3D code and use VCCT with 10-noded tetrahedral elements to determine fatigue crack tip parameters (e.g. dK1, dK2, etc.) for fatigue cracks undergoing (a) mixed mode, in-ph ...

The objective of this proposal is to demonstrate the feasibility and performance of compact, efficient, radiation hardened laser technology for LADAR detection, ranging and range-gated imaging applications. Traditional laser designs exhibit modest wall plug efficiencies. They are limited in scalability, tough to miniaturize and often intolerant of space radiation. Conventional diode pumped lase ...

Kigre proposes to develop and integrate unique radiation hardened, athermal, 1.5um laser gain materials and pumping architectures into high performance optical laser amplifier devices for SATCOM applications. The approach employs long life radiation tolerant pump diodes configured for direct side pumping of large mode area laser glass gain elements. Traditional single mode fiber laser amplifier ...

Development of a software tool capable of predicting crack growth in structures with complex geometries for accurate structural life predictions and residual strength assessment is proposed. The custom crack growth simulation tool, CRACK3D, will be used as the basic code for further development and implementation. First, further enhancement of the CRACK3D module for computational geometry and topo ...

The goal of the Phase I program is to demonstrate the feasibility of our technical approach to grow AlInN lattice Matched Barrier HEMTs on low defect Bulk and quasi-bulk III-Nitride Substrates (GaN). This will be accomplished using our pulsed MOCVD growth technique to deposit AlInN films at a higher growth temperature than conventional MOCVD deposition methods, resulting in better material qualit ...

We propose to develop a novel hybrid circuit approach combining CMOS and two terminal crosspoint nanodevices with a novel interface consisting of an array of pins with nanometer scale tips. Our CMOL approach will allow the fabrication of ultra-dense integrated circuits (up to 10^12 active devices per cm2) for advanced computing (up to 10^20 operation per cm2 per second), information storage and se ...

We propose to develop GaN based multicolor FIR/THz cameras with detector elements and readout, signal processing electronics integrated on a single chip.  The active detector elements will be submicron gated channels with 2 dimensional electron gas (2DEG). The devices with gated 2DEG (commonly known as field-effect transistors) respond to the incoming FIR radiation due to the rectification of rad ...