Search Results - environment

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Cooperative Positioning Using RF Pattern Matching
The present invention relates to telecommunications in general, and, more particularly, to a technique in which two or more wireless terminals cooperate to make measurements that assist in generating an estimate of their locations.
Published: 12/1/2016   |   Inventor(s): Reza Vaghefi, R. Michael Buehrer, Scot Gordon
Category(s): Communication, Computer Hardware, Computer Software, Electrical, Energy, Engineering, Environment, Process/Procedures, Transportation
Ocean Wave Energy Harvester Using Mechanical Modified Rectifier
The novel power take off (PTO) technology transforms the back-and-forth wave movement into a single-directional movement to more efficiently capture wave energy using the creative design of ball screw and one-way bearing. The new PTO will improve energy conversion efficiency and reliability with a very compact design, which solves the fundamental challenge...
Published: 3/30/2016   |   Inventor(s): Lei Zuo, Lin Xu, You Wu, Yilun Liu
Category(s): Electrical, Energy, Engineering, Environment
F2mc Power Take-Off Pumps For Wave Energy Conversion
Virginia Tech's f2mc power take-off pumps convert energy from ocean waves in hydraulic energy using fluidic flexible matrix composite tube pumps. F2mc tubes consist of stiff reinforcing fibers embedded in a soft elastomer or polymer matrix. When a load is applied to the tubes, the volume of the composite pump is reduced and fluid is forced out of the...
Published: 3/2/2016   |   Inventor(s): Michael Philen, Adrian Bialy, Lorianne Groo, Carson Squibb
Category(s): Engineering, Energy, Electrical, Environment
A Portable Tuned Mass Damper with Simple Tuning/Design for the Reduction of Vibrations in Civil Engineering/Architectural Structures
This IP consists of a device called "Portable Tuned Mass Damper (PTMD)" which is designed to be compact, portable, and easily adjustable. All parts of the device are screwed to each other to facilitate the construction and assembly. It can be installed within a building floor plenum, architectural elements or can be placed at the desired location directly...
Published: 1/25/2016   |   Inventor(s): Mehdi Setareh
Category(s): Engineering, Environment, Devices, Consumer Products, Transportation
3D Nanoparticle/Bacterial Cellulose Nanocomposite for Analyte Detection
The low affinity of many analytes to noble metal surfaces often limits their capacity to be detected by surface enhanced Raman spectroscopy (SERS). To enhance surface affinity and improve reproducibility we have produced a nanocomposite consisting of a bacterial cellulose support matrix that is embedded with either gold or silver nanoparticles. By restraining...
Published: 12/14/2015   |   Inventor(s): Peter Vikesland, Haoran Wei
Category(s): Environment
Noise Reducing Surface Treatment for Airfoil
This innovative design comprises a surface treatment on airfoils that reduces trailing edge noise. Existing measurements suggest noise reduction by as much as 15dB. Most present designs to mitigate trailing edge noise involve changing the shape of the airfoil trailing edge. However, this technology utilizes a novel surface treatment to attenuate boundary...
Published: 10/14/2014   |   Inventor(s): William Nathan Alexander, William Devenport, Ian Clark, Stewart Glegg, Nigel Peake, Justin Jaworski, Conor Daly
Category(s): Energy, Engineering, Environment, Materials, Transportation
Mini Gas Chromatography Systems
A novel Micro GC architecture has been proposed in this work, based on a monolithically integrated microfabricated separation column and thermal conductivity detector (TCD). The architecture also has a method to perform very sharp injections from the micro-preconcentrator, which is compatible with flow sensitive gas detectors like TCD. The proposed...
Published: 9/24/2014   |   Inventor(s): Apoorva Garg, Masoud Agah, Leyla Nazhandali
Category(s): Chemicals, Devices, Environment, Engineering
Micro Extraction and Analysis of Organic Compounds from Aqueous Environmental Samples and Bodily Fluids
This invention describes the extraction of organic compounds from the aqueous sample followed by analysis using a micro gas chromatography (uGC) system. The extraction of organic compounds is performed by micro purge extractor (uPE) chip which is hybridly integrated with micro preconcentrator coated with Tenax TA adsorbent which serves as a trap. The...
Published: 7/3/2014   |   Inventor(s): Muhammad Akbar, Masoud Agah
Category(s): Diagnostic, Devices, Environment
Functionalized Metal Oxides As A Stationary Phase And A Surface Template For Micro Gas Chromatography Separation Columns
This invention describes a new approach for utilizing atomic layer deposited (ALD) metal oxides as a stationary phase for microfabricated gas chromatography columns. After ALD oxide deposition, a chloroalkylsilane is utilized to deactivate the oxide surface to improve peak symmetry and retention times. Semipacked columns (1m-long, 190 um-wide with 20...
Published: 2/10/2014   |   Inventor(s): Hamza Shakeel, Masoud Agah
Category(s): Devices, Engineering, Environment
A Miniaturized Helium Photoionization Detector
This is a technique to miniaturize a Helium Photo-ionization Detector using silicon micromachining resulting in a dimension less that 2cm x 1cm x 2mm. This is suitable for universal, sensitive yet non-destructive gas sensing. Unlike its universal counterpart, the Thermal Conductivity Detector, this consumes less power (just 1.4mW) and is more stable...
Published: 9/26/2013   |   Inventor(s): Shree Narayanan Sreedharan Nair, Masoud Agah
Category(s): Devices, Chemicals, Environment
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