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Viscoelastic Surfactants

Rhodia  

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Laser Beam and Illumination Field Quality

AGFA  

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Turbo-Cycle Rotor Engine

Thoughtflow An engine with a very low part count, high power density, and flexibility to operate with a constant pressure burn for high efficiency is in the concept stage. It is optimizable for power, efficiency, and high power density; and is non-idling, self-starting, self-lubricating, and with regenerative braking. Fuel is introduced with the compression entering the combustion chamber. The amount and timing of the charge can be delivered in efficient pulses or in a nearly constant pressure mode for high power. Each sweep of a plate accomplishes two of the cycles. Three of the six plates exchange exhaust with fresh air as they sweep a chamber ahead of the power stroke. The other three drive plates expand combustion gases and compress the fresh air ahead of it into the central accumulator.

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Technology Compensates for Audio

Microsoft  

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Flexible Absorbent Binder

Kimberly-Clark The Flexible Absorbent Binder (FAB), is a liquid coating that, once dry, forms a cross-linked, water absorbent hydrogel film on many substrates. The coating binds glass, metal, plastics, cellulose, and polypropylene, and may bind covalently to hydroxy-functional surfaces. The coating can also absorb moisture, bodily fluids, and other aqueous liquids; FAB may absorb many times its own weight in water, including salt water and potentially acidic solutions.

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Multiple Networks from One WiFi Card

Microsoft This software solution virtualizes multiple WiFi cards within the same computer. It creates two or more software WiFi cards in computer memory so that multiple WiFi connections can take place essentially at the same time, using a single WiFi card and antenna system. The same computer simultaneously can be connected to multiple access points, to different WiFi networks, to multiple nodes in an ad hoc network, or to multiple WiFi channels on the same network (or possibly all of these at the same time.)

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Progress in Insect-Inspired Optical Navigation Sensors

Some details of implementation have become available. Progress has been made in continuing efforts to develop optical flight-control and navigation sensors for miniature robotic aircraft. The designs of these sensors are inspired by the designs and functions of the vision systems and brains of insects. Two types of sensors of particular interest are polarization compasses and ocellar horizon sensors. The basic principle of polarization compasses was described (but without using the term “polarization compass”) in “Insect-Inspired Flight Control for Small Flying Robots” (NPO-30545), NASA Tech Briefs, Vol. 29, No. 1 (January 2005), page 61. To recapitulate: Bees use sky polarization patterns in ultraviolet (UV) light, caused by Rayleigh scattering of sunlight by atmospheric gas molecules, as direction references relative to the apparent position of the Sun. A robotic direction-finding technique based on this concept would be more robust in comparison with a technique based on the direction to the visible Sun because the UV polarization pattern is distributed across the entire sky and, hence, is redundant and can be extrapolated from a small region of clear sky in an elsewhere cloudy sky that hides the Sun.

Posted in: Physical Sciences, Briefs

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