Search Results - Engineering

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Ferrofluidic actuation of liquid for radio-frequency applications
Researchers at the University of Hawaii describe liquid-metal based reconfigurable radio-frequency (RF) circuits having improved performance characteristics. The improvements are made possible through a new method for actuating liquid metal utilizing a hydrocarbon-based ferrofluid as an alternative to aqueous acidic or basic solutions. The ferroflu...
Published: 1/3/2018   |   Inventor(s): Anthony Combs, Aaron Ohta, Wayne Shiroma
Category(s): Devices, Engineering
Novel Magnesium Boride Materials for Hydrogen Storage
Hydrogen storage is one of the great challenges limiting the commercialization of polymer electrolyte membrane (PEM) fuel cell technology for automobile and unmanned vehicles. Full commercialization is dependent upon the development of compact and cost competitive hydrogen storage technologies with longer drive range and capability of meeting pract...
Published: 10/5/2017   |   Inventor(s): Godwin Severa, Craig Jensen
Category(s): Engineering, Materials Science, Energy, Power, Chemistry
Energy Harvesting Technology
This invention involves a new energy harvesting technology that uses a simple, position-dependent passive switch to harvest the peak electric potential energy generated in the electrostatic induction process as a droplet of liquid moves over different materials. This new technology is perfectly suited to scavenge low-level, otherwise wasted, ambien...
Published: 9/25/2017   |   Inventor(s): Tianwei (David) Ma, Jian (Jimmy) Yu, Enze Ma
Keywords(s): Devices:Medical, Energy, Engineering:Electrical, Environment:Sensing, Power:Generation
Category(s): Energy, Engineering, Power
Smart Actuator for Medical Device Locating and Positioning
The invention involves the use of advanced materials and actuators to assist in the positioning of medical devices inserted using transcatheter approaches. The actuator device utilizes shape memory components that are able to achieve movements in multiple directions and resume their original shape in response to selective actuation. Attachment of t...
Published: 9/25/2017   |   Inventor(s): Bardia Konh
Category(s): Devices, Engineering, Healthcare, Materials Science
Improved Voltage Regulators
In the past decade, the landscape of energy production has had to shift to accommodate renewables which, unlike fossil fuels, are subject to frequent fluctuations; potentially destabilizing grid operators. With the continued demand for solar PV system installation, there is a pressing need for utilities to regulate the voltages at the low voltage d...
Published: 12/22/2016   |   Inventor(s): Ashkan Zeinalzadeh, Reza Ghorbani, James Yee
Keywords(s): Energy, Energy:Solar, Energy:Voltage Optimization, Engineering, Engineering:Voltage Regulation, Power, Power:Grid
Category(s): Energy, Engineering
Closed-Loop Axisymmetric Drop Shape Analysis for Droplet Manipulation
Inventors at the University of Hawaii have developed a novel method for closed-loop axisymmetric drop shape analysis (CL-ADSA), taking it beyond traditional surface tension measurement to a sophisticated tool for manipulating millimeter-sized droplets. This closed-loop system enables real-time measurement AND precise control of droplet properties s...
Published: 8/18/2016   |   Inventor(s): Yi Zuo
Keywords(s): Automation, Chemical:Coatings, Chemical:Detergent/Cleaners, Computer:Software, Contact angle, Devices:Medical Support, Drop shape analysis, Droplet manipulation, Healthcare:Diagnostic Tool, Instrumentation:Analytical, Materials:Thin Films, Real-time analysis, Research Tool, Surface tensiometry, Surface tension
Category(s): Engineering
Apparatus & Method for Estimating the State of Health of a Battery via updating the OCV and SOC relationship
The problem: Within a few months from purchase, the fuel gauge in battery-powered devices, from cell phones to EVs, starts to become inaccurate. This is usually noticeable towards the end of discharge where the battery level may suddenly drop from 30% to 5%. This is not a battery problem but a monitoring problem and while this is an annoyance for c...
Published: 3/3/2016   |   Inventor(s): Matthieu Dubarry, Arnaud Devie
Category(s): Energy, Engineering, Communications
Method and Device for Biochemical Sensing (Exclusively Licensed - please inquire for further details)
Medical diagnostics using chemical sensing of antibody, antigens, DNA fragments and other biochemicals are addressed using semiconductor sensors and supportive biochemical processes. This successful marriage of semiconductor sensors and biochemistry address a diversity of potential biochemical diagnostics and measurements including detection an...
Published: 2/11/2016   |   Inventor(s): James Holm-Kennedy
Category(s): Microbiology, Engineering, Biology, Chemistry, Sensors, Healthcare
Method for localization of atypical sequences in big data
One characteristic of the information age is the exponential growth of information, and the ready availability of this information through networks. The question is what to do with this enormous amount of information. One possibility is to characterize it through statistical averages, but UH researchers have taken the opposite tack and developed a ...
Published: 4/10/2013   |   Inventor(s): Anders Host-Madsen
Category(s): Engineering, Computing, Healthcare
HydroxiRem - The Most Cost-Effective Advanced Oxidative Process for Wastewater Purification
University of Hawai‘i inventors have developed a novel “Advanced Oxidative Process” for wastewater purification. This system is effective at 1/10 the cost of activated carbon and is a heterogeneous system capable of completely destroying persistent and difficult organic contaminants in wastewater streams. The solid metal powder...
Published: 3/12/2010   |   Inventor(s): Jamil Rima, Qing Xiao Li, Lizette Aouezova
Category(s): Engineering
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