Award Data

The previously conducted Phase I project had two goals: (1) to prototype and evaluate the feasibility of an intelligent computer-based task management application that would improve the ability of persons with cognitive disabilities to perform activities of daily living (ADL) and (2) to identify objectives for full development of a deployable system in a Phase II project. Intelligent multimedia ...

A new quasi-resonant converter, called the unipolar series resonant converter ("USRC"), will be adapted as a four-quadrant drive for electric vehicles ("EVs"). With zero current and voltage switching, it will high modulation frequency (over 30 khz), thus driving a motor silently and efficiently throughout the speed range. The USRC produces any waveform required by any type of EV motor. It produces ...

Wide-area networks are essential to productivity in commercial enterprises and military organizations. Reliability is difficult to achieve because wide-area networks, such as the Internet, are built from many autonomously configured component networks. Today there exists a large gap between the intended design of a network and the implementation of that design. This is because complex network poli ...

Lattice Block Materials, or LBM for short, are a class of materials comprised of an open structure of ligaments arranged in a regular truss like structure that is three dimensional. A basic unit cell is comprised of a square based pyramid skeleton (just the corners, called nodes, and the edges, called ligaments). These cells are connected in all directions to form a larger lattice like structure ...

Software design, development, and maintenance constitute a complex and time-intensive process. Early design decisions can have a crucial impact on both quality and cost. Design rationale tools have been shown to be effective in supporting this process, but are infrequently used due to their interference with normal design team workflow. The rapid growth of new network and web-mediated workstyle ...

A fundamental component responsible for low bit error rate (BER) is the phase jitter of the frequency reference source, regardless if a network is wireless or fiber optic in nature. In the case of wireless the frequency reference source is typically a voltage controlled oscillator (VCO), and in the fiber optic case it is a clock. In order to maximize the full benefit of spread spectrum technique ...

Vaporcor LLC is developing a very high altitude (~90 kft) aircraft propulsion engine capable of meeting the stability, reliability, and environmental requirements suitable for use on a VHALE aircraft with 12-20 hour endurance that must be stored for months. Vaporcor’s VHALE engine implements a closed loop Rankine thermodynamic cycle using super-critical CO2 (S-CO2) as the working fluid. The Ra ...