RSS Feed Source: Science Daily
Scientists have expanded on a longstanding model governing the mechanics behind slip banding, a process that produces strain marks in metals under compression, gaining a new understanding of the behavior of advanced materials critical to energy systems, space exploration and nuclear applications.
Click this link to continue reading the article on the source website.
RSS Feed Source: Science Daily
A new study supported by the U.S. National Science Foundation shows, for the first time, how heat moves — or rather, doesn’t — between materials in a high-energy-density plasma state. The work is expected to provide a better understanding of inertial confinement fusion experiments, which aim to reliably achieve fusion ignition on Earth using lasers. How heat flows between a hot plasma and a material’s surface is also important in other technologies, including semiconductor etching and vehicles that fly at hypersonic speeds.
High-energy-density plasmas are produced only at extreme pressures and temperatures. The study shows that interfacial thermal resistance, a phenomenon known to impede heat transfer in less extreme conditions, also prevents heat flow between different materials in a dense, super-hot plasma state. The research is published in Nature Communications and was led by Thomas White, a physicist at the University of Nevada, Reno, and his former doctoral student, Cameron Allen. White is a recipient of an NSF Faculty Early Career Development grant.
“Understanding how energy flows across a boundary is a fundamental question, and this work provides us with new insights into how this happens in the exceptionally energy-dense environments that one finds inside of stars and planetary cores,” says Jeremiah Williams, a program director for the NSF Plasma Physics program.
RSS Feed Source: Science Daily
Estimating the pose of hand-held objects is a critical and challenging problem in robotics and computer vision. While leveraging multi-modal RGB and depth data is a promising solution, existing approaches still face challenges due to hand-induced occlusions and multimodal data fusion. In a new study, researchers developed a novel deep learning framework that addresses these issues by introducing a novel vote-based fusion module and a hand-aware pose estimation module.
Click this link to continue reading the article on the source website.
RSS Feed Source: Science Daily
In-brief analysis
May 1, 2025
Data source: CME Group, Bloomberg L.P.
Note: Refinery margin is calculated as the 3-2-1 crack spread on the U.S. Atlantic Coast, which represents two barrels of gasoline and one barrel of distillate fuel oil minus three barrels of Brent crude oil. 1Q25=first quarter of 2025
During the first quarter of 2025 (1Q25), crude oil prices generally decreased while U.S. refinery margins initially increased before decreasing in the final month of the quarter. In this quarterly update, we review petroleum markets price developments in 1Q25, covering crude oil prices, refinery margins, biofuel compliance credit prices, and natural gas plant liquids prices.
Crude oil prices
After reaching a quarterly high of $82 per barrel (b) on January 15, crude oil prices generally declined through the end of the first quarter, settling at $75/b
Click this link to continue reading the article on the source website.
