Tech Exchange

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.

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Mirror Switches Between Reflective and Transparent States

A flexible mirror film electrically switches between reflective and transparent states. By applying (+) voltages, hydrogenation occurs and creates transparency. When (-) voltages are used, the switchable mirror returns to its original reflective state within 10 seconds. The technology allows switchlevel control of the passage of solar radiation, thereby reducing cooling load.

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Hovering Aerial Vehicles Use Wireless Energy Supplied from Ground

New electrically charged, polarized, proprietary alloys create thrust to lift small aircraft, commonly referred to as Personal Ultralight Vehicles (PAVs), without the need of a propeller, jet, balloon, or rockets. The ion electric air propulsion is considered a clean technology that has none of the carbon emissions or volatile fuels involved with combustion engines. A ground-based broadcast power system and onboard rectenna eliminates the need for onboard power storage and results in more lift range and higher payload.

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Fast-Charge Technology Finds Battery “Sweet Spot”

A technology recharges batteries in up to one-tenth the time of conventional methods. The device creates conditions within the battery that allow power to be input as fast as the cell can accept the charge. By creating a charging “ecosystem,” the optimum battery charging conditions are present which, in turn, cause the necessary redox reactions to occur at a very fast rate, with little to no side reactions occurring from an input of excess energy.

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Technology Produces Electrically Conductive Polyester

New polyester compositions feature desired electrical characteristics without unduly deteriorating the other valued melt viscosity, processing, and shaped article properties. The electrically conductive polyester has strong conductivity at low carbon black loading. The use of carbon black with specific physical properties is critical for achieving the desired mix of electrical and processing traits. The carbon black component may be added at the monomer stage, such as with the dicarboxylic acid or with the glycol, or to the initial (trans)esterification product.

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Piezo-Driven Pressure Controller Saves Heat

Using a piezo-actuated valve and an integral, closed-loop pressure control circuit, a modular controller maintains the pressure of non-corrosive to mildly corrosive gases. The Active Pressure Controller (APC) consumes minimal power (

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Magnetic Device Separates Hydrogen from Oxygen

High temperatures have been used to dissociate water, but in many cases, the oxygen and hydrogen recombine when temperatures drop. A new device magnetically separates hydrogen from oxygen at elevated temperatures. Steam enters a reaction chamber, heats to over 150 °C in a focused solar beam, and dissociates into hydrogen and oxygen. The ionic gases then pass through a magnetic field, where they experience opposing forces and can be drawn off individually. Once the ions are diverged, they are separated by a physical barrier. The temperature then rapidly decreases, causing the separated ions to recombine into H2 and O2.

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