Robert M. Dickson, an assistant professor of chemistry and biochemistry at Georgia Tech, says that silver could increase the amount of storage in optical devices. "One could potentially store more than 1 bit/data point by using color to store the information," says Dickson. For example, red and green mix to make yellow in computer displays for producing different shades of yellow. Dickson showed that clusters of silver atoms produced fluorescent emissions. Using the correct distribution of particle sizes, the multi-color emissions allow storage of more than one bit in each data point. "The different shades could be used to store more information per point. The storage density would then be related to the number of distinguishable colors," he says. He successfully demonstrated binary optical storage with the new system by writing and reading images recorded on thin films made of silver oxide. For more information, contact Dickson at (404) 894-4007.
What if algae borne of fertilizer runoff that pollutes rivers and lakes could be harvested and used as biofuel feedstock? What if the leftovers could be recycled into farm soil nutrients, eliminating at least some of the need for artificial fertilizers in the first place? Western Michigan University researchers have a plan.
Manufacturers of plastic parts recognize the potential of conformal cooling to reduce molding cycle times. Problem is, conformal molds require additive manufacturing (AM), and technologies in that space are still evolving. Costs also can be high, and beyond that, many manufacturing organizations lack the knowledge and expertise needed to apply and incorporate additive technologies into their operations.
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