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ScienceDaily: Computers & Math News |
Siting cell towers needs careful planning Posted: 03 Dec 2019 01:25 PM PST The health impacts of radio-frequency radiation (RFR) are still inconclusive, but the data to date warrants more caution in placing cell towers. An engineering team considers the current understanding of health impacts and possible solutions, which indicate a 500-meter (one third of a mile) buffer around schools and hospitals may help reduce risk for vulnerable populations. |
Successful instrument guidance through deep and convoluted blood vessel networks Posted: 03 Dec 2019 11:33 AM PST Researchers have developed a novel approach to tackling one of the biggest challenges of endovascular surgery: how to reach the most difficult-to-access physiological locations. Their solution is a robotic platform that uses the fringe field generated by the superconducting magnet of a clinical MRI scanner to guide medical instruments through deeper and more complex vascular structures. The approach has been successfully demonstrated in-vivo. |
Detecting solar flares, more in real time Posted: 03 Dec 2019 10:38 AM PST Computers can learn to find flares and other events in vast streams of solar images to help forecasters issue timely alerts, according to a new study. The machine-learning technique searches satellite data for features significant for space weather. Changing conditions on the Sun can affect various technologies on Earth, blocking radio communications, damaging power grids, and diminishing navigation system accuracy. |
Study sheds light on the peculiar 'normal' phase of high-temperature superconductors Posted: 03 Dec 2019 10:38 AM PST Every character has a back story, and so do high-temperature superconductors, which conduct electricity with no loss at much higher temperatures than scientists once thought possible. Recent experiments have probed the normal state more accurately than ever before and discover an abrupt shift in the behavior of electrons in which they suddenly give up their individuality and behave like an electron soup. |
Mass-producible, centimeter-scale metalens for VR, imaging Posted: 03 Dec 2019 10:38 AM PST Metalenses -- flat surfaces that use nanostructures to focus light -- are poised to revolutionize everything from microscopy to cameras, sensors, and displays. But so far, most of the lenses have been about the size of a piece of glitter. While lenses this size work well for some applications, a larger lens is needed for low-light conditions, such as an imaging system onboard orbital satellites, and VR applications, where the lens needs to be larger than a pupil. |
Virtual reality could help flu vaccination rates Posted: 03 Dec 2019 10:38 AM PST Using a virtual reality simulation to show how flu spreads and its impact on others could be a way to encourage more people to get a flu vaccination, according to a new study. |
Fake news feels less immoral to share when we've seen it before Posted: 03 Dec 2019 06:48 AM PST People who repeatedly encounter a fake news item may feel less and less unethical about sharing it on social media, even when they don't believe the information, research indicates. |
Bending an organic semiconductor can boost electrical flow Posted: 03 Dec 2019 06:48 AM PST Slightly bending semiconductors made of organic materials can roughly double the speed of electricity flowing through them and could benefit next-generation electronics such as sensors and solar cells, according to new research. |
Carpentry Compiler helps woodworkers design objects that they can actually make Posted: 03 Dec 2019 06:30 AM PST Researchers have created Carpentry Compiler, a digital tool that allows users to design woodworking projects. Once a project is designed, the tool creates optimized fabrication instructions based on the materials and equipment a user has available. |
A trick for taming terahertz transmissions Posted: 02 Dec 2019 09:46 AM PST Researchers have invented a wireless communication receiver that can operate in the terahertz frequency band. By increasing the sensitivity 10,000-fold, they achieved the fastest Researchers invent a new receiver for terahertz-frequency radiation -- by implementing coherent detection, they achieve record transmission rates -- this work may lead to much faster wireless data speeds using less power.real-time error-free transmission rates ever recorded. This work may be crucial for next generation cell phone standards and novel remote sensors. |
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