Award Data

ABSTRACT: Ultra-high performance concrete (UHPC) materials with outstanding material properties offer significant promise to transform infrastructure design and service life. Evolution of UHPC into a mainstream construction material would benefit from the resolution of issues relevant to the restrictive selections of finer aggregates/fillers, large heat of hydration and thermal stresses, high aut ...

ABSTRACT: In this Phase I STTR project, we propose to demonstrate the feasibility of developing a low cost, compact, time-domain terahertz (TD-THz) spectrometer specifically for the characterization of semiconductor materials over a range of temperatures, electric fields, and magnetic fields. In phase I, we will configure fiber optic coupled TD-THz instrumentation to make measurements on a sampl ...

ABSTRACT: The goal of this phase II proposal is to develop a commercial platform for printing high performance, single-walled carbon nanotube transistor circuits on large-area plastic substrate. Automated processes will be developed for the room temperature printing of metal, semiconductor, and dielectric materials with micron-scale alignment accuracy. The transistor performance will be enha ...

ABSTRACT: Stellar Science has developed innovative techniques for satellite conjunction processing using spatiotemporally indexed ephemeris data. Our algorithms first insert each satellite into a spatially aware data structure, such as a K-D Tree or a Spatial Hash Table, and then it scans the data structure looking for satellite conjunctions. While traditional approaches to satellite conjunctio ...

ABSTRACT: We propose to develop a comprehensive, integrated software framework and toolset to support model-based engineering (MBE) of laser weapons systems. To be effective, MBE requires robust underlying modeling and simulation technologies capable of modeling all the pertinent systems, subsystems, components, effects, and interactions at any level of fidelity that may be required in order to ...

ABSTRACT: This program develops a Modular Propulsion system design and demonstration test bed that continues the efforts of the Phase I program that established the feasibility of a green propellant based modular propulsion system. Two reduced toxicity propellants will be considered: LMP-103S and AFM-315E. The mission type and the spacecraft size strongly impact the details of the modular propu ...

A large body of historic paper- and film-based seismograms are in storage, containing within them significant stores of seismological information. This information is unavailable for analysis because it needs to be extracted from its analog form and put into modern digital formats. National security needs in nuclear non-proliferation, earthquake modeling, and oil and gas extraction will all benefi ...

Past industrial practices have resulted in groundwater that is contaminated by heavy metals. Long-term monitoring and maintenance is one of the largest costs of environmental management. This project is developing a compact analyzer for measuring chromium ions in ground water that should significantly reduce the cost of monitoring the presence of this metal. The Phase I project investigated a n ...

Alternative energy sources, such as wind and solar are inherently variable. Steady power to the grid can be achieved by the use of redox flow batteries to store and release power. Redox flow batteries are batteries that use a solution of redox active material that can flow past the electrodes, become charged, and then be stored in an auxiliary tank. Such a battery can have a storage capacity tha ...

Superconducting radio frequency (SRF) cavities are being successfully used for acceleration of charged particle beams worldwide. The application of the SRF cavities for manipulation of the beam properties in the transverse direction finds more and more applications. The use of superconducting structures helps maximize the electric field gradient, a highly desirable feature for applications invol ...