The experimental validation of an efficient iterative technique for compensating known position errors in a spherical near to far-field transformation (NTFFT) for elongated antennas using a minimum number of near-field (NF) measurements has been provided. This transformation exploits a non-redundant sampling representation of the voltage detected by the probe obtained by modeling a long antenna with a prolate ellipsoid.
A smart watch that takes the user to another dimension and a smart ring that provides powerful feedback are among the top technology Dartmouth College will bring to the 30th ACM User Interface Software and Technology Symposium (UIST 2017).
'The autonomous HydroCamel II integrates state-of-the-art technologies, including high-level maneuvering in six degrees of freedom and an ability to dive almost vertically,' says Professor Hugo Guterman of the BGU Department of Electrical and Computer Engineering and head of LAR. 'Until now, these capabilities were limited to remotely operated underwater vehicles (ROVs), which must be tethered by an umbilical cable to a host ship for its power and air source. The HydroCamel II is completely autonomous.'
Fruit flies have surprising similarities to humans. The mysteries of a broad range of human conditions can be studied in detail in these organisms, however this often requires the use of expensive custom equipment. In a Community Page in the open-access journal PLOS Biology, Dr. Giorgio Gilestro from Imperial College London and colleagues present the ethoscope -- a cheap, easy-to-use and self-made customizable piece of equipment of their invention that can be used to study flies' behavior.
UW and UCLA engineers have developed a flexible sensor 'skin' that can be stretched over any part of a robot's body or prosthetic to accurately convey information about shear forces and vibration, which are critical to tasks ranging from cooking an egg to dismantling a bomb.
A machine learning tool can help identify which high-risk breast lesions are likely to become cancerous, according to a new study. Researchers said the technology has the potential to reduce unnecessary surgeries.
Scientists have invented a way to morph liquid metal into physical shapes.
HRL Laboratories, LLC, researchers have determined how non-invasive transcranial direct current stimulation (tDCS) could increase associative learning. When applied to the prefrontal cortex, tDCS affected the brain widely, changing functional connectivity between areas, and accelerating learning in macaques. This confirmation potentially resolves controversy over reports claiming no effect on neuron firing rates in cadaver heads, believed to be the mechanism of interest. The HRL study confirmed faster learning regardless of neuron firing rates.
American researchers find that soldiers are more likely to open up about post-traumatic stress when interviewed by a virtual interviewer, reports a new study in Frontiers in Robotics and AI. Virtual interviewers can combine the rapport-building skills of human interviewers with feelings safety provided by anonymous surveys to help soldiers to reveal more about their mental health symptoms.
Engineers at MIT have developed a new model to simulate dynamic soaring, and have used it to identify the optimal flight pattern that an albatross should take in order to harvest the most wind and energy. They found that as an albatross banks or turns to dive down and soar up, it should do so in shallow arcs, keeping almost to a straight, forward trajectory.