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.

Posted in: Techs for License
Read More >>

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.

Posted in: Techs for License
Read More >>

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.

Posted in: Techs for License
Read More >>

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.

Posted in: Techs for License
Read More >>

Biodegradable Silica Gel Fiber Regenerates Cell Tissue

An inorganic, biodegradable silica gel fiber (SGF) acts as a physical scaffold to aid the growth of new cells and the collagen structure that supports them. As a scaffold, it can also be used to deliver drugs over a wide area to aid in healing. The material is integrated into the tissues and resorbed by the body. Unlike collagen, the SGF scaffold stays in the wound for 1–2 weeks before resorption. Dimension as well as degradation speed can be adjusted from millimeters up to several hundred square centimeters.

Posted in: Techs for License
Read More >>

Nozzle Produces Ultrafine Droplets

Energy-saving nozzles offer droplet sizes down to 25 microns, at operating pressures as low as 100 psi. Nozzle passages, including metering slots, spin chambers, and exit orifices, are designed to minimize pressure drop, resulting in conservation of pump energy up to the exit orifice.

Posted in: Techs for License
Read More >>

Extensible Light-Sensing LED Array

New technology developed at NDSU uses an extensible array of light-emitting diodes (LEDs) as a means of sensing incident light levels. This light-sensing LED array can be used to construct highly-dynamic backlights for displays, as well as large-format synthetic aperture cameras.

Posted in: Techs for License, Lighting, Light emitting diodes (LEDs), Optics, Sensors and actuators, Light emitting diodes (LEDs), Optics, Sensors and actuators, Displays, Displays, Product development
Read More >>

Heterocycles for Use in Electronic Devices

Synthesis of heterocyclic aromatic compounds has been pursued for a long time by chemists in order to analyze their properties and potential applications in biomedical and materials sciences including electronic devices such as organic light emitting devices (OLEDs) and in hydrogen storage.

Posted in: Techs for License, Lighting, Electronic equipment, Electronic equipment, Medical, health, and wellness, Research and development, Chemicals, Materials properties
Read More >>

Synthetic Material Offers Touch-Feel of Genuine Leather

A synthetic leather material delivers a durable touch-feel. The design is based on the way that the human fingertip interacts with surfaces along four different axes of material properties. The fingertip determines whether a surface is soft or hard, smooth or coarse, wet or dry, and warm or cold. By discovering the relationship between the fingertip and the sensations produced by feeling high-quality, hide-based material, engineers set the appropriate physical properties.

Posted in: Techs for License
Read More >>

Piezoelectric-Actuated Valves Bring Accuracy to Process Control Systems

The PACE Hf, a high-flow proportional valve utilizing a Parker Advanced Technology actuator, delivers 180 slpm of air at 30 psi. The product has low power requirements: steadystate 0.6 Watts max, cycling 15 Hz, 1.2 Watts. The Viva piezoelectric actuator provides repeatability and accuracy for the valve of 0.25% variability in 10 ms cycle times.

Posted in: Techs for License
Read More >>

The U.S. Government does not endorse any commercial product, process, or activity identified on this web site.