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3D Printing Flexible Circuits
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Continued from page 1
produced a flexible capacitor. “In the laboratory, we carried out the indi- vidual work steps in a layering process, but in practice, they can lat- er be completely transferred to a 3D printer,” says Glier. However, the further develop-
ment of conventional 3D printing tech- nology, which is usually optimized for individual printing inks, is also essen- tial for this. In inkjet-based processes, the print nozzles could be clogged by the nanostructures.
In the next step, the re-
searchers want to test how the struc- ture of the conductive paths made of nanowires changes under mechani- cal stress. “How well does the wire mesh hold together during bending? How stable does the polymer re- main?” says Roth, referring to typical questions. “X-ray investigation is very suitable for this, because it is the only way we can look into the ma- terial and analyze the conductive paths and surfaces of the nanowires.” Web:
www.desy.de r
Pittsburgh, PA — A team of re- searchers from Carnegie Mellon Uni- versity, in collaboration with the University of Minnesota, has made a breakthrough in the field of noninva- sive robotic device control. Using a noninvasive brain-computer inter- face (BCI), researchers have devel- oped the first-ever successful mind- controlled robotic arm exhibiting the ability to continuously track and fol- low a computer cursor. Being able to noninvasively con-
Noninvasive Mind Controlled Robotics
July, 2019
require a substantial amount of med- ical and surgical expertise to correctly install and operate, not to mention cost and potential risks to subjects, and as such, their use has been limit- ed to just a few clinical cases. A grand challenge in BCI re-
trol robotic devices using only thoughts will have broad applica- tions, in particular benefiting the lives of paralyzed patients and those with movement disorders. BCIs have been shown to achieve
good performance for controlling ro- botic devices using only the signals sensed from brain implants. When ro- botic devices can be controlled with high precision, they can be used to complete a variety of daily tasks. Until now, however, BCIs successful in con- trolling robotic arms have used inva- sive brain implants. These implants
search is to develop less invasive or even totally noninvasive technology that would allow paralyzed patients to control their environment or robot- ic limbs using their own “thoughts.” Such noninvasive BCI technology, if successful, would bring such much needed technology to numerous pa- tients and even potentially to the general population. However, BCIs that use nonin-
vasive external sensing, rather than brain implants, receive “dirtier” sig- nals, leading to lower resolution and less precise control. Thus, when us- ing only the brain to control a robotic arm, a noninvasive BCI does not stand up to brain-only control using implanted devices. Despite this, BCI researchers have forged ahead, their eye on the prize of a less- or noninva- sive technology that could help pa- tients everywhere on a daily basis. Bin He, trustee professor and department head of biomedical engi-
Continued on page 8 SCS PRECISIONCOAT V Contents
Tech-Op-Ed ........................... 4 Tech Watch ........................... 10 People.................................... 12 Business News......................... 14 Business Briefs........................ 15 Management......................... 16 EMS .................................... 18 ElectronicMfg. Prods............. 26 Production............................ 50 Partnering............................. 52 Distribution........................... 54 New Products....................... 82 High-Tech Events................... 96 Editorial Calendar................. 96 Advertisers Index................... 98
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