🤖 Computer Science

Few-shot RUL prediction for engines based on CNN-GRU model

A 1D CNN-GRU prediction model addresses insufficient historical data in predicting aircraft engine remaining useful life (RUL). It combines CNN for high-dimensional feature extraction and GRU for capturing temporal features. Validated on a NASA dataset, this method demonstrates high accuracy in RUL prediction.

ITEM: Improving Training and Evaluation of Message-Passing based GNNs for top-k recommendation

Graph Neural Networks (GNNs) excel in top-k recommendation tasks. This study explores ranking loss functions for better optimization, introducing a Personalized PageRank-based sampling strategy and a new evaluation protocol. The proposed method outperforms existing approaches in accuracy and training speed across multiple datasets and GNN architectures.

⚛️ Physics and Chemistry

Physicists suggest tachyons can be reconciled with the special theory of relativity

Tachyons, hypothetical particles traveling faster than light, were once thought incompatible with the special theory of relativity. However, a new paper by physicists from the University of Warsaw and the University of Oxford, published in Physical Review D, suggests these prejudices are unfounded. The study shows tachyons not only fit within the theory but also enhance our understanding of its causal structure.

Quantum-entangled photons are super-sensitive to Earth’s rotation

A new experiment using a highly sensitive Sagnac interferometer has measured the effect of Earth’s rotation on entangled light states, advancing the potential for sensitive tests of gravitational effects on quantum objects. In this device, light beams travel in opposite directions around the same path, producing an interference pattern shifted by the rotation's angular velocity. This shift is proportional to the interferometer's area, allowing precise measurement of small rotations.

Zinc–air batteries created from paper industry waste

Researchers have demonstrated that paper industry waste can be converted into a high power density zinc–air battery. Made from cellulose and lignin, this battery operates across a wide temperature range and avoids the issue of dendrite growth.

🧬 Biology & Medicine

This lab-grown meat probably tastes like real beef

Researchers have engineered lab-grown meat that releases beefy flavors at high temperatures, potentially improving its appeal. By enhancing cultured meat with compounds involved in the Maillard reaction, which gives cooked food its flavor and aroma, they successfully replicated the taste of conventional meat. The study was published on July 9 in Nature Communications.

Genetics and Lifestyle Choices Can Affect Early Prostate Cancer Deaths

Men with higher genetic risk for prostate cancer have over three times the risk of early death from the disease. A third of these deaths might be preventable with healthy lifestyle choices, according to a study analyzing data from two cohort studies. The findings highlight the need for targeted prevention strategies for high-risk populations.

UQ and AbGenics partner to develop new drugs against antimicrobial resistance

UQ researchers received nearly $1 million from the Australia-India Strategic Research Fund to tackle antimicrobial resistance. Led by Professor Mark Blaskovich, the project will collaborate with AbGenics Life Sciences in India to develop new drugs and diagnostics. The team will enhance antibodies to improve their ability to detect and eliminate bacteria.

🔭 Space & Astronomy

China Targets Near-Earth Asteroid for Upcoming Deflection Test

China plans to conduct an asteroid deflection mission, aiming to collide with the near-Earth asteroid 2015 XF261 to alter its course, similar to NASA’s DART mission. The project, initially set for 2025 with asteroid 2019 VL5, is now scheduled for launch no earlier than 2027 and will also investigate the asteroid's origins. Details were revealed in a recent paper in the Journal of Deep Space Exploration.

SpaceX launches direct-to-cell Starlink satellites from California after delay

On July 11, SpaceX launched 20 Starlink satellites, including 13 with direct-to-cell capabilities, from California's Vandenberg Space Force Base. The Falcon 9 rocket lifted off at 10:35 p.m. EDT, a day later than scheduled, with the first stage successfully landing on the droneship in the Pacific Ocean about eight minutes post-launch.

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