Award Data

ABSTRACT: The current static nature of systems and networks allows attackers to gather intelligence, perform planning, and then execute attacks at will. If instead we remove this underlying static nature and make the network dynamic, many classes of attacks can be prevented by making them too difficult to carry out without detection as well as by reducing their probability and level of success. ...

ABSTRACT: In Phase II, Syntonics will develop an advanced wireless strain measurement system for structural health monitoring. The system will be configured with a number of passive, non-battery power strain sensors communicating wirelessly with an interrogating device mounted external to the engine under test. The goal is the development of designs and manufacturing processes able to reliably ...

ABSTRACT: We present a comprehensive framework for shaping, inferring, and optimizing information flows for dynamic spectrum access (DSA) in cognitive radio (CR) networks. A principal goal is to develop methods for modeling, design, and analysis of spectrum sensing and control, by leveraging and advancing network coding and network optimization solutions. More specifically, we study spectrum mana ...

ABSTRACT: Crystalline semiconductor nanomembranes (NMs) possess the electronic/photonic properties of bulk material, although they are flexible, deformable, and conformable. Semiconductor nanomembranes offer unique opportunities for novel active/ passive electronic, and photonic devices suitable for vertically stacked high-density photonic/electronic integration. Silicon-on-insulator substrates. ...

Well over 50 % of US land area constitutes low wind-speed sites, yet wind turbines are either not effective or only marginally effective in such low winds. To extract significantly more energy from such DOE Class 1 or Class 2 winds requires substantially increasing turbine blade rotor diameter (wind power is proportional to the square of the blade diameter). However, due to limitations on turbine ...

Typical agrochemical sprayers use nozzles to atomize a liquid stream into droplets; these droplets then travel to the target. Nozzles may be selected to provide a range of droplet sizes, spray distribution patterns, and flow rates for a desired liquid material application. Spray distribution, droplet size, and flow rate are important considerations in achieving a high quality agrochemical applicat ...

Vapors produced during the process of refueling cars are a significant source of Volatile Organic Compounds (VOCs) emissions. Uncontrolled emissions cause economic losses and pollute the environment. This problem is exacerbated when the gasoline contains bioethanol because its presence increases the vapor pressure and volatility of the fuel. These increased fuel emissions from ethanol-gasoline ble ...

Soybean is the major source for production of edible oils worldwide and in United States. Pressing of the soybean into flakes followed by the solvent extraction with hexane (solvent) is most widely practiced for extraction of oil. Separation of solvent from oil-solvent mixture for solvent recovery and reuse is usually carried out by solvent evaporation. Evaporation (or distillation) demands consid ...

The U.S. population has a deficit of dietary calcium that represents a serious challenge to public health. Many consumers, however, find current methods of increasing dietary calcium to be inconvenient, costly, or unpalatable. This SBIR Phase II proposal seeks to increase calcium levels in lettuce, a specialty crop that already comprises a significant part of the average U.S. diet. Successful Phas ...

Non-Tech Summary: The black walnut grows throughout the central and eastern United States. It's rich, tasty flavor is a high-valued food additive. Although 15.4 acres of black walnuts yield approximately 4 billon pounds of raw nuts annually, only about 20 million pounds are commercially processed. With low economic incentives and small processing capacity, growers lack motivation to harvest. ...