For over thirty years, the Hawaiian bobtail squid Euprymna scolopes has served as a model to understand the influences of beneficial bacteria on animal development and elucidate the molecular mechanisms of specificity during the establishment and maintenance of environmentally transmitted symbioses.
As the field of hypersonic vehicle design develops, having shear stress data can aid in the minimization of
drag source effects and verify results from computational fluid dynamics simulations. Transducer size,
placement, and narrow bandwidth currently limit accurate shear stress measurements due to the small
length and time scales seen in turbulent fluid motion and the issue of flow disruption. Shock wave and
boundary layer effects also produce large thermal loads in hypersonic flows. The proposed research plan
The goal of this project is to develop processes that will advance microfabrication technologies using stereolithography as the additive manufacturing (3D printing) method. This project focuses on fabrication of multifunctional devices that are both high resolution (tens of micrometers) and large area (tens of millimeters). The ability to fabricate functional microdevices using 3D printing can enable novel devices in the area of MEMs, sensors, actuators, microrobots, micro-optics, radio frequency, etc.
Understanding the character and dynamics of hypersonic boundary layers poses a considerable challenge to the design of hypersonic vehicles. Specifically, being able to predict the location of laminar-to-turbulent transition is of critical concern as it affects heating rates, aerodynamic loading, and skin-friction drag, therefore impacting the design of the thermal protection system and thus the overall weight and performance of the vehicle.
See www.iot4ag.us for more information.
We are developing ultra-compact antennas, where the antenna size is much smaller than the electromagnetic wavelength.
Pervasive wireless connectivity is a must for today’s interconnected world. Many MHz-GHz communication systems require antennas with physical sizes that can be much larger than the entire size of the system. It is difficult to achieve good antenna performance if the size of the antenna is less than 1/10ththe electromagnetic wavelength (e.g. minimum of 3 cm at 1 GHz)
Chronic and acute pain affect ~100 million people in the US and greatly increase national rates of morbidity, mortality, and disability. Pain not only negatively impacts individual lives in significant ways, it also imposes enormous national economic costs (up to $635B annually). The misuse of and addiction to opioids, such as prescription pain relievers, heroin, and synthetic opioids (e.g., fentanyl and carfentanil) is a serious national crisis. Currently ~130 Americans die of opioid overdose every day.
Chronic and acute pain affect ~100 million people in the US and greatly increase national rates of morbidity, mortality, and disability. Pain not only negatively impacts individual lives in significant ways, it also imposes enormous national economic costs (up to $635B annually). The misuse of and addiction to opioids, such as prescription pain relievers, heroin, and synthetic opioids (e.g., fentanyl and carfentanil) is a serious national crisis. Currently ~130 Americans die of opioid overdose every day.
For patients to benefit from state-of-the-art high-channel-count neural-interface technology, translatable implant packaging technology is needed to support it. Despite advances in implant electronics, batteries, enclosures, and even high-feedthrough-count and high-feedthrough-density headers, the lack of advancement in implant connector technology has imposed an often-unacceptable tradeoff between high interface channel count and the ability to disconnect and reconnect implanted interface leads from packaged and implanted electronics.
For amputees to exploit the full capability of state-of-the-art prosthetic limbs with rapid fine-movement control and high- resolution sensory percepts, a nerve-interface with a large number of reliable and independent channels of motor and sensory information is needed. The strongest signal sources in nerves are the nodes of Ranvier, which are essentially distributed randomly within a small 3-D volume. Thus, to comprehensively engage with the electrical activity of a nerve, a neural interface should interrogate a nerve in a 3-D volume of the same scale.