Science News

Health-monitoring apps can help people manage chronic diseases or stay on track with fitness goals, using nothing more than a smartphone. However, these apps can be slow and energy-inefficient because the vast machine-learning models that power them must be shuttled between a smartphone and a central memory server.

Electronic devices are getting more and more complex as they are built to carry out an ever-increasing number of functions. This can be seen in the increased functionality in our personal devices such as our phones, tablets and watches, let alone in industrial devices. However, their growing complexity can lead to performance and safety issues. These issues include device overheating or emitting microwaves that can result in health issues and that can reduce a device's performance and interfere with other devices.

Machine learning-based models that can autonomously generate various types of content have become increasingly advanced over the past few years. These frameworks have opened new possibilities for filmmaking and for compiling datasets to train robotics algorithms.

The step size, often referred to as the learning rate, plays a pivotal role in optimizing the efficiency of the stochastic gradient descent (SGD) algorithm. In recent times, multiple step size strategies have emerged for enhancing SGD performance. However, a significant challenge associated with these step sizes is related to their probability distribution, denoted as ηt/ΣTt=1ηt .

The electrode sheet of a thermoelectric device consists of ionic hydrogel, which is sandwiched between the electrodes to form, and the Prussian blue on the electrode undergoes a redox reaction to improve the energy density and power density of the ionic thermoelectric generator.

The development of the world's most performant neural network module for accurately extracting objects from aerial and satellite imagery is expected to have wide applications across various fields, according to DGIST and the research team of Dabeeo Inc.

A new University of Michigan study finds that automation and electrification of long-haul trucking can reduce urban health impacts and environmental damages.

Researchers have unveiled a technology that propels the field of wireless communication forward. This cutting-edge design, termed a reconfigurable transmissive metasurface, utilizes a synergistic blend of scissor and rotation actuators to independently manage beam scanning and polarization conversion. This introduces an innovative approach to boosting signal strength and efficiency within wireless networks.

Application data requirements vs. available network bandwidth have been the ongoing Battle of the Information Age, but now it appears that a truce is within reach, based on new research from NJIT Associate Professor Jacob Chakareski.

By analyzing the trends and locations of crashes in the Greater Melbourne Area during a 15-year period, from 2006 to 2020, Dr. Ali Soltani, from the Flinders Health and Medical Research Institute at Flinders University, and his research colleagues have determined the places where crashes were most prevalent and reasons contributing to high crash rates in those areas. The study is published in Transport Policy.

Researchers from Skoltech and their colleagues have improved the properties of a carbon-based electrode material by exposing it to air plasma. Such treatment turned out to enhance electrode performance, which is the limiting factor for high-tech energy sources—particularly fuel cells.

Lithium salts make batteries powerful but expensive. An ultralow-concentration electrolyte based on the lithium salt LiDFOB may be a more economical and more sustainable alternative. Cells using these electrolytes and conventional electrodes have been demonstrated to have high performance, as reported by a research team in the journal Angewandte Chemie International Edition. In addition, the electrolyte could facilitate both production and recycling of the batteries.

People who have experienced extreme weather are especially likely to say climate change needs to be addressed right away.

To protect the movement of wildlife impeded by busy roadways, a series of manmade overpasses and underpasses throughout the U.S. helps animals big and small safely get across the street, preventing collisions and saving human lives.

The EPA issued the first-ever national regulation limiting the amount of certain PFAS in drinking water. Here's what to know about potential health impacts of "forever chemicals."

A chatbot turns hostile. A test version of a Roomba vacuum collects images of users in private situations. A Black woman is falsely identified as a suspect on the basis of facial recognition software, which tends to be less accurate at identifying women and people of color.

Humans are increasingly using artificial intelligence (AI) to inform decisions about our lives. AI is, for instance, helping to make hiring choices and offer medical diagnoses.

Water scarcity around the world is a bigger problem than ever, and desalination is critical to solving it. The best available technologies for separating salt from seawater, though, are costly and require a great deal of maintenance.

The mystery of how futuristic aircraft-embedded engines, featuring an energy-conserving arrangement, make noise has been solved by researchers at the University of Bristol.

A new DC-DC power converter is superior to previous designs and paves the way for more efficient, reliable and sustainable energy storage and conversion solutions. The Kobe University development can efficiently interface with a wide range of energy sources while enhancing system stability and simplicity at an unprecedented efficiency.