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How to fabricate a microfluidic device from sticky tape. Image courtesy of Gregory A. Banner Ad. Copyright Information Interested in spectroscopy? All Rights Reserved. A single toner cartridge will often last for 5,, pages of printing.
Fabricating Paper Based Devices Using Correction Pens
The laser printer uses a complex system, involving a laser , to make the toner stick to the required parts of the paper. The laser and toner system allows very fast printing compared to other printers just a few seconds per page. Laser printers are very common in offices since they print very quickly, are cheap to use and are reasonably quiet. Plotters create hard-copy in a very different way to printers.
Instead of building up text and images from tiny dots, plotters draw on the paper using a pen.
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The pens are held in an arm which can lift the pen up or down, and which can move across the paper. The arm and pen create a drawing just like a human could, but much more accurately and more quickly.
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Different coloured pens can be used to produce coloured line drawings. Plotters are often used by designers and architects since they work with huge pieces of paper , far bigger than anything a normal printer could work with Plotters are only suitable for producing line drawings. They cannot produce the kind of text and images that an ink-jet or laser printer could.
So you cannot use a plotter to produce photos for example. Plotters have been largely superseded by large-format ink jet printers that can produce more detailed printouts and in full-colour. Sorry to ask you this, but Menu Home Read Me First!
Sticky valves for cheap microfluidic devices
Data and Information What is a System? By shading the device with the figurative umbrella, and supplementing that with insulation around the device to protect it from the ambient air temperature, the researchers made passive cooling more viable. But now, we know if the shade is used smartly together with some supportive light filtering, it can actually be used to cool the object down. While most research on radiative cooling has focused on larger systems that might be applied to cooling entire rooms or buildings, this approach is more localized.
The system might also be useful for some kinds of concentrated photovoltaic systems, where mirrors are used to focus sunlight on a solar cell to increase its efficiency. But such systems can easily overheat and generally require active thermal management with fluids and pumps. Instead, the backside of such concentrating systems could be fitted with the mid-infrared emissive surfaces used in the passive cooling system, and could control the heating without any active intervention.
The team has applied for patents on the invention and hope that it can begin to find real-world applications quite rapidly. Reprinted with permission from MIT News. You must be logged in to post a comment. Sign in Join. Sign in. Log into your account.
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