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Solving complex physics problems at lightning speed

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IMAGE: Physicists have developed a new method that enables emulation of complex calculations at lightning speed. This could yield new insights about the quantum properties of strongly interacting matter such as.
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Credit: Illustration: Andreas Ekström and Yen Strandqvist/Chalmers University of Technology
A calculation so complex that it takes twenty years to complete on a powerful desktop computer can now be done in one hour on a regular laptop. Physicist Andreas Ekström at Chalmers University of Technology, together with international research colleagues, has designed a new method to calculate the properties of atomic nuclei incredibly quickly. ....

United States , Achim Schwenk , Kai Hebeler , Gaute Hagen , Andreas Ekstr , Global Sensitivity Analysis Of Bulk Properties , Michigan State University , Oak Ridge National Laboratory , Department Of Physics At Chalmers , Chalmers University Of Technology , European Research Council , Carolina State University , Darmstadt University Of Technology , Chalmers University , Associate Professor , Dean Lee , North Carolina State University , Darmstadt University , Sensitivity Analysis , Bulk Properties , Physical Review Letters , Chemistry Physics Materials Sciences , Atomic Molecular Particle Physics , Nuclear Physics , Mathematics Statistics , Algorithms Models ,

COVID-19 warnings were on Twitter well before the outbreak of the pandemic

A new study of researchers at IMT School for Advanced Studies Lucca, published in Scientific Reports, has identified tracks of increasing concern about pneumonia cases on posts published on Twitter in seven countries, between the end of 2019 and the beginning of 2020. The analysis of the posts shows that the whistleblowing came precisely from the geographical regions where the primary outbreaks later developed. ....

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Smooth touchdown: novel camera-based system for automated landing of drone on a fixed spot

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IMAGE: A standard radio control-based drone, upgraded with necessary hardware and software and equipped with a simple 2D camera for the detection of a symbolized landing pad
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Credit: Malik Demirhan and Chinthaka Premachandra in Development of an Automated Camera-Based Drone Landing System, published in IEEE Access by IEEE Xplore, under Creative Commons license CC BY-NC-ND 4.0.
Initially earmarked for covert military operations, unmanned aerial vehicles (UAVs) or drones have since gained tremendous popularity, which has broadened the scope of their use. In fact, remote pilot drones have been largely replaced by autonomous drones for applications in various fields. One such application is their usage in rescue missions following a natural or man-made disaster. However, this often requires the drones to be able to land safely on uneven terrain which can be very difficult to execute. ....

Chinthaka Premachandra , Top Global University , School Of Engineering , Department Of Electronic Engineering , Robotics Laboratory , Tokyo Higher School Of Industry , Shibaura Institute Of Technology , Ministry Of Education , Shibaura Institute , Automated Camera Based Drone Landing System , Tokyo Higher School , Top Global University Project , Professor Chinthaka Premachandra , Image Processing , Associate Professor , Electronic Engineering , Graduate School , Paper Award , Researchers Award , Chemistry Physics Materials Sciences , Algorithms Models , Technology Engineering Computer Science , Electrical Engineering Electronics , Mechanical Engineering , Robotry Artificial Intelligence , Nanotechnology Micromachines ,

Appreciating a flower's texture, color, and shape leads to better drone landings

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IMAGE: Optical flow field (blue arrows) when the drone flies straight forward. In the flight direction, the flow is smallest, making the tree in the drone s path the hardest one to.
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Credit: MAVLab/ TU Delft
If you ever saw a honeybee hopping elegantly from flower to flower or avoiding you as you passed by, you may have wondered how such a tiny insect has such perfect navigation skills. These flying insects skills are partially explained by the concept of optical flow: they perceive the speed with which objects move through their field of view. Robotics researchers have tried to mimic these strategies on flying robots, but with limited success. A team of TU Delft and the Westphalian University of Applied Sciences researchers therefore present an optical flow-based learning process that allows robots to estimate distances through the visual appearance (shape, color, texture) of the objects in view. This artificial intelligence (AI)-based ....

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New COVID-19 model shows little benefit in vaccinating high-risk individuals first

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BROOKLYN, New York, Tuesday, January 19, 2021 - The World Health Organization reports that as of January 19, 2021, there are approximately 94 million cases of COVID-19 globally, with over 2 million deaths. In the face of these numbers driven in part by an aggressive resurgence of the virus in the U.S. health authorities face a tenuous balancing act: how to enact policies to keep citizens safe while doing the least possible damage to quality of life and local economies, especially in smaller cities and towns, where short supply of intensive care units and tight budgets make the thin line between precautionary measures and normalcy even thinner. ....

New York , United States , New Rochelle , Westchester County , Alessandro Rizzo , Lorenzo Zino , Emanuele Caroppo , Jalil Hasanyan , Sachit Butail , Brandon Behring , Agnieszka Truszkowska , Maurizio Porfiri , World Health Organization , National Science Foundation , Institute Professor , Tandon School Of Engineering , Netherlands Organisation For Scientific Research , Southern Illinois University , European Research Council , University Of Groningen , Resolution Agent Based Modeling , Small Town , Advanced Theory , Zhong Ping Jiang , Cattolica Del Sacro Cuore , Turin Polytechnic ,