Tech Exchange

Microscopic Sphere Production Process Eliminates Classification Needs After Processing

A new process produces microspheres of an extremely narrow size distribution and high homogeneity, measuring between 2 and 10 μm. The process can make the microscopic spheres from any material that can be polymerized; acrylic and styrene spheres have been produced.

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MothEye Non-Reflective Display Coating Kills Glare and Improves Contrast

Sub-wavelength nanostructures virtually eliminate glare and minimize reflection while enhancing contrast and light transmission to over 99% in the visible wavelengths. Sony Chemical has developed manufacturing expertise in this nanostructure coating, which is called “MothEye” because it emulates the hexagonal cells and nanostructures of the eye of a moth. A roll-to-roll production method has been developed.

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Commercial-Scale, High-Conductivity Graphene Inks for Printed Electronics

Vorbeck’s graphene-based Vor-ink™ conductive inks and coatings combine exceptional electrical conductivity with high-speed and cost-effective printability on a variety of printing and coating systems, including flexo and roll-to-roll. With conductivity levels as much as 10X higher than typical carbon inks, Vor-ink requires no high-temperature sintering, and creates robust films that do not crack or delaminate even with repeated flexing and creasing. This enables flexible applications where bending, folding, handling, dropping, and even crumpling do not disturb the printed circuitry.

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Indoor Positioning System Utilizes Wireless LAN Network

A positioning system utilizes ZigBee™, a wireless sensor network on the 2.4-GHz ISM band. The technology applies stochastic reasoning in analyzing the ID and received signal strength indication (RSSI) of received wireless signals. Due to multipath interference, the position of people or target objects can be estimated within a margin of error of one to several meters, regardless of signal loss, noise, or signal fluctuation.

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Square Piston Engine Reduces Emissions

The Square Piston Engine (SPEC), a two-stroke engine with a square piston, has an improved power-to-weight ratio compared to existing engines. The engine features the same three moving parts as a conventional two-stroke engine: crank, gudgeon, and piston. The delayed opening of the exhaust port on the power stroke provides a cleaner burn of the fuel, yielding more torque and lower emissions. The SPEC also has a closed-loop engine oiling system, which provides component durability and reduced hydrocarbon consumption. The engine is modular in design, providing significant manufacturing flexibility.

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Detection of Pathogens, Environmental Contaminants, and Illicit Materials

The University of Georgia Research Foundation has a portfolio of technologies for the fast and accurate detection and identification of pathogens and chemicals. The technologies provide for a scalable and inexpensive method for the detection of disease agents as well as environmental contaminants, materials of relevance to homeland security, etc.

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Smart Grid Technology for Monitoring Power Generation of Each Solar Panel

The National Institute of AIST in Japan has developed a communication technology that uses the direct current (DC) power line of a solar panel as a communication line. The technology helps monitor the power generation in each solar panel, which is useful for the maintenance of the panel and the prompt detection of malfunctions. The monitoring unit of the developed communication system is small and can be placed in the terminal box of a solar panel. The system does not require additional wiring work because the existing DC power lines from the solar panels are used for communication.

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