Search Results - shashank+priya

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High Efficiency Wearable Thermoelectric Cooler
Published: 4/18/2019   |   Inventor(s): Ravi Kishore, Shashank Priya, Amin Nozariasbmarz, Bed Poudel
Category(s): Electrical
Aerosolized MagnetoElectric Mechanical Antenna (AMEMA)
Aerosolized MagnetoElectric Mechanical Antenna (AMEMA) is a radical concept for reducing the size of VLF transmitter by five orders of magnitude - without bulk motion. By leveraging the breakthrough's made at Virginia Tech in developing mathematical models for time-variant system, non-resonant radiating structures and tuning electronics, and combining...
Published: 3/30/2017   |   Inventor(s): Khai Ngo, Shashank Priya
Category(s): Electrical, Engineering
Composition, Structure, and Method for Fabrication of Tunable Inductors with Large Tunability
Tunability of conventional inductors is achieved either by mechanically tuning through bias magnet(s) or by adjusting the electric current in solenoids/electromagnets. These devices are typically bulky, slow, noisy, and inefficient. Various efforts have been devoted towards developing voltage tunable inductors that have large tunability and low energy...
Published: 3/30/2017   |   Inventor(s): Yongke Yan, Shashank Priya
Category(s): Electrical, Materials, Energy
Composition of Textured Piezoelectric Materials for Achieving High Energy Density
Extensive research has been carried out on PZN single crystals because of their excellent dielectric and piezoelectric properties. Although PZN single crystals can be grown by the flux method, perovskite PZN ceramics cannot be synthesized by the conventional mixed-oxide method without doping. Attempts to synthesize perovskite PZN ceramics invariably...
Published: 12/22/2016   |   Inventor(s): Yongke Yan, Shashank Priya, Jin Heo, Kyunghoon Cho
Category(s): Energy
Field Tunable Functionality Graded Multilayer Ceramic Capacitators
The multilayer ceramic capacitors (MLCC) have attracted a great deal of attention for their huge amount of usages and applications. However, the typical dielectric materials used in MLCC have the problem of a nonlinear change of capacitance over the temperature range due to their intrinsic ferroelectric characteristics. The X7R (-55°C to +125°C...
Published: 12/22/2016   |   Inventor(s): Hyun-Cheol Song, Shashank Priya, Deepam Maurya
Category(s): Electrical
Low Grade Thermal Energy Harvesting Device and its Manufacturing Techniques
More than 60% of total energy produced by various renewable and non-renewable sources is exhausted into the atmosphere as waste heat. Currently, thermoelectric generators (TEGs) are used to generate electricity from thermal energy. TEGs are almost effective for applications near room temperature and at low thermal gradient (less than 50°C). A novel...
Published: 12/22/2016   |   Inventor(s): Ravi Kishore, Shashank Priya
Category(s): Energy
Method and Composition for Achieving High Piezoelectric Voltage Coefficient
A rapid surge in the research on piezoelectric sensors is occurring with the arrival of the Internet of Things (IoTs). Single-phase oxide piezoelectric materials with giant piezoelectric voltage coefficient (g, induced voltage under applied stress) and high Curie temperature (Tc) are crucial towards providing desired performance for sensing, especially,...
Published: 4/11/2016   |   Inventor(s): Yongke Yan, Shashank Priya
Category(s): Electrical
Methodology For Design of Broadband Low Frequency Piezoelectric Energy Harvester
A significant impediment in the deployment of vibration-based energy harvesting devices has been the limitation that most of the low frequency transducers, usually in the form of unimorph or bimorph cantilever beams, extract energy in a very narro bandwidth around the transducer's fundamental frequency. In such devices, slight deviation from the fundamental...
Published: 8/12/2014   |   Inventor(s): Abdessattar Abdelkefi, Nathan Sharpes, Shashank Priya, Muhammad Hajj
Category(s): Energy, Electrical
Biomimetic Tilt Sensor and Turning Mechanism
This IP relates to a tilt sensor design based on a jellyfish's natural directional sensing organ. This sensor was integrated with a robotic jellyfish vehicle to show the viability of this type of sensor with UUVs. Custom-built electronics were designed to split up a single input signal into 8 differing signals, allowing individual actuators to be controlled...
Published: 5/9/2013   |   Inventor(s): Colin Smith, Shashank Priya
Category(s): Process/Procedures, Devices, Electrical, Biotechnology
New Processing Method for Grain-Oriented Lead-Free Piezoelectric Na0.5Bi0.5TiO3-BaTiO3 Ceramics Exhibiting Giant Performance
Due to the toxic nature of lead-based piezoceramics, there is a push for lead-free piezoelectric materials. However, these possess weaker desirable responses and are more difficult to grow as a singlular crystal, although the introduction of texturing slightly improves the properties. Virginia Tech has developed a novel way to produce lead free piezoceramics...
Published: 9/20/2012   |   Inventor(s): Deepam Maurya, Shashank Priya
Category(s): Materials, Energy, Process/Procedures
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