News

Tropical Storm Beryl forms in Atlantic, forecast to strengthen into hurricane
2024-06-29 04:00:24
Beryl was expected to strengthen into a hurricane as it approached the Windward Islands in the West Indies, the National Hurricane Center reported.
Discrete-time rewards efficiently guide the extraction of continuous-time optimal control policy from system data
2024-06-28 17:02:17
The concept of reward is central in reinforcement learning and is also widely used in the natural sciences, engineering, and social sciences. Organisms learn behavior by interacting with their environment and observing the resulting rewarding stimuli. The expression of rewards largely represents the perception of the system and defines the behavioral state of the dynamic system. In reinforcement learning, finding rewards that explain behavioral decisions of dynamic systems has been an open challenge.
Electrochemically molecular-imprinted catalysts enable high-energy-density Li-S batteries
2024-06-28 15:51:45
High energy density is a crucial direction for future battery development. Lithium-sulfur (Li-S) batteries, with their high theoretical energy density, have garnered significant attention. However, the slow solid-liquid-solid conversion of sulfur, especially the oxidation of lithium sulfide (Li2S) during charging, which requires overcoming large reaction barriers, leads to incomplete Li2S conversion and electrode passivation.
Researchers develop novel 3D printing strategy with controllable gradients porous structures
2024-06-28 15:16:55
Material extrusion 3D printing technology is widely utilized in biofabrication/bioprinting, tissue engineering, flexible electronics, and soft robotics. However, the fixed printing parameters and constant filament diameter limit the design and fabrication of complex gradient porous structures.
Researchers develop the fastest possible flow algorithm
2024-06-28 11:50:39
In a breakthrough that brings to mind Lucky Luke—the man who shoots faster than his shadow—Rasmus Kyng and his team have developed a superfast algorithm that looks set to transform an entire field of research.
Video game designers battle to depict climate impacts
2024-06-28 11:50:39
Game designer Sam Alfred is keenly aware of the challenge he faces in trying to build a video game with climate change at its heart.
Real-time modeling of 3D temperature distributions within nuclear microreactors to improve safety systems
2024-06-28 09:44:52
A real-time, 3D temperature map of the inside of a nuclear microreactor for improved safety monitoring was reconstructed using a newly-established theoretical foundation to evaluate basis functions, which can be combined to describe fundamental trends in data, according to a new University of Michigan study.
Fossil of Neanderthal child with signs of Down syndrome suggests compassionate care, scientists say
2024-06-27 16:34:58
Some scientists say a fossil of a Neanderthal child with apparent Down syndrome suggests the species were compassionate caregivers.
Giant asteroid the size of 770 lions to pass Earth Thursday, June 27 - NASA
2024-06-27 16:34:57
Using the ESA's measurement, asteroid (415029) 2011 UL21 is around the size of 770 adult male lions from head to tail.
Fossil fuel use, emissions hit records in 2023, report says
2024-06-27 16:34:54
Growing demand for fossil fuel despite the scaling up of renewables could be a sticking point for the transition to lower carbon energy as global temperature increases reach 1.5C.
Space debris crashes into Florida home, family sues for damages
2024-06-27 16:34:54
The space agency said they will continue to investigate why the hardware did not burn up during entry and update their systems so it does not occur again.
A look at the jellyfish that swarm the coasts of Israel
2024-06-27 16:34:52
Sea bathers have already reported encounters with various types of jellyfish.
Research shows how common plastics could passively cool and heat buildings with the seasons
2024-06-27 15:24:13
Researchers at Princeton and UCLA have developed a passive mechanism to cool buildings in the summer and warm them in the winter.
Creating sustainable cooling in southeast Asia using ground source heat pump systems
2024-06-27 15:17:06
As energy and environmental crises rampage, sustainable solutions like ground source heat pump (GSHP) systems gain traction. GSHP systems use consistent geothermal energy below the earth's surface to provide heating and cooling for buildings. So, they are an eco-friendly alternative to traditional heating, ventilation, and air-conditioning or HVAC systems. Specifically, in constructing smart cities, using energy piles—structures that support buildings and function as a part of GSHP systems—and analyzing the soil thermal dynamics is vital for sustainable urban development.
Robotic hand with tactile fingertips achieves new dexterity feat
2024-06-27 14:12:15
Improving the dexterity of robot hands could have significant implications for automating tasks such as handling goods for supermarkets or sorting through waste for recycling.
Canadian wildfires released more carbon emissions than burning fossil fuels, study shows
2024-06-27 14:09:15
Scientists calculated the devastating impacts of the months-long 2023 Canadian wildfires.
'Not a lab experiment': climate tech CEO on green innovation
2024-06-27 14:09:14
Microsoft co-founder and billionaire philanthropist Bill Gates has been hosting executives and entrepreneurs in London this week to boost investment in cutting-edge technologies promising big breakthroughs in tackling climate change.
Maps show dengue fever risk areas as CDC warns of global case surge
2024-06-27 14:09:14
Where exactly are cases of dengue fever being detected? What to know after U.S. health officials warned doctors​ to be alert for the mosquito-borne virus.
Researchers suggest smart solution to harness waste heat from industry
2024-06-27 13:35:03
Norway wastes huge amounts of energy. Surplus heat produced by industry is hardly exploited at all.
Huawei's secret ally in the US-China tech war: A science nonprofit based in DC
2024-06-27 13:11:54
When Optica Chief Executive Officer Elizabeth Rogan traveled to China in November, the prestigious U.S. scientific society she runs promoted the trip internally and on social media. But it omitted a key stop: her visit to Huawei Technologies Co.'s headquarters, according to communications and documents reviewed by Bloomberg News.

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