Results 161 to 170 of about 41,613 (278)

Robust Machine Learning–Based Ionospheric Delay Grid Modeling for PPP‐RTK Under Sparse Reference Stations and Severe Geomagnetic Disturbance

Space Weather, Volume 24, Issue 9, September 2026.
Abstract Sparse reference station networks and severe geomagnetic disturbances can significantly degrade the accuracy of regional ionospheric delay modeling at the network side, thereby reducing the positioning performance of PPP‐RTK. To address this issue, this study proposes a machine learning‐based ionospheric delay grid modeling method that finely ...
Linyu He, Weiping Jiang, Hua Chen, Xingyu Zhou, Tianjun Liu, Jie He, Jie Ding   +6 more
wiley   +1 more source

Multi-objective optimization of corrugated microperforated panels for broadband sound absorption using adaptive sampling method. [PDF]

Sci Rep
Wu Z, Ooi LE, Liu Y, Lyu P.
europepmc   +1 more source

Attributing Runoff and Non‐Point Source Pollution Changes to Climate and Human Drivers in the Weihe River Basin, China

Water Resources Research, Volume 62, Issue 9, September 2026.
Abstract Climate change and human activities jointly affect runoff generation and non‐point source pollutant transport in river basins. Quantifying their relative roles is essential for explaining pollutant‐load changes and informing water resources management. Here, this study developed an integrated framework combining Budyko runoff attribution, Soil
Yuhan Shen, Dehong Li, Dengke Qing, Xunian Yuan, Xiaobo Luan, Shikun Sun   +5 more
wiley   +1 more source

Multiobjective blood pump impeller optimization with three response surface methods and prototype stator casting for an integrated motor pump. [PDF]

Sci Rep
Sahebi-Kuzehkanan R, Niroomand-Oscuii H, Badri Ghavifekr H, Ghalichi F, Sahebi-Kuzehkanan Z.   +4 more
europepmc   +1 more source

Geostatistical Discharge Estimation in Hydroelectric Canals: Integration Kriging, Conditional Simulation, and Sampling Design

Water Resources Research, Volume 62, Issue 9, September 2026.
Abstract Accurate discharge estimation in hydroelectric canals is essential for turbine efficiency monitoring and operational decision‐making, yet conventional current‐meter methods provide no rigorous uncertainty quantification for the integrated discharge quantity.
Dominique Tapsoba, Xavier Emery
wiley   +1 more source

Snow What? Strengths and Limitations of Different Snow Products in Western U.S. Mountains

Water Resources Research, Volume 62, Issue 9, September 2026.
Abstract Reported values of average annual peak snow water equivalent (SWE) in the mountains of the western United States differ by more than a factor of five, from not enough water to fill Lake Mead, the largest reservoir in the region, to enough water to fill Lake Mead five times. These products are not created equal.
Jessica D. Lundquist, Mimi Rose Abel, William Ryan Currier, Darren L. Jackson   +3 more
wiley   +1 more source

Knowledge embedded wind tunnel typical pressure vessel design optimization method research. [PDF]

PLoS One
Yang Y, Yan S, Xie Q, Liu B, Yan X, Yang Z, Ding H.   +6 more
europepmc   +1 more source

Evaluating Fragmentation Detection in Block Caves Using Synthetic Muon Tomography

Geophysical Prospecting, Volume 74, Issue 7, September 2026.
ABSTRACT Muon tomography is a geophysical imaging technique with growing application across a range of geological and industrial settings. By observing the arrival of naturally occurring muons, it is possible to reconstruct subsurface density distributions in three dimensions.
M. A. McLean, R. Seikel, F. Scutti, A. R. Duffy   +3 more
wiley   +1 more source

Study on In-Plane Compressive Buckling Behavior and Parameter Optimization of PMMA-Based Thermoplastic Sandwich Structures. [PDF]

Materials (Basel)
Li G, Guo X, Wang Y, Zhou L, Zhang J.
europepmc   +1 more source

Universities as the Next Counterintelligence Battleground in Geopolitical Contests

Global Policy, Volume 17, Issue 4, Page 734-743, September 2026.
ABSTRACT Globally, universities are increasingly becoming the target of foreign national security actors, engaging in espionage, sabotage, foreign interference and intellectual property theft. Despite that, there has been no examination of the utilisation of counterintelligence approaches by universities to the threats they face from the subordination ...
Brendan Walker‐Munro, Sascha‐Dominik Dov Bachmann   +1 more
wiley   +1 more source