Results 131 to 140 of about 53,557 (225)

A Transferable Real‐Time MUF Forecasting Model for HF Communication in China

Space Weather, Volume 24, Issue 4, April 2026.
Abstract High‐frequency (HF) communication is an important means of strategic and emergency communication, playing an irreplaceable role in both military and civil applications. The maximum usable frequency (MUF) is a key parameter controlling HF signal propagation, and its real‐time and accurate forecast has long been a major challenge in engineering.
Qiao Yu, Jian Wang, Yafei Shi, Zhanfeng Zhu, Jieqing Fan, Tong Xu, Cheng Yang   +6 more
wiley   +1 more source

Numerical Procedures for Random Differential Equations

Journal of Applied Mathematics, 2018
Some methodological approaches based on generalized polynomial chaos for linear differential equations with random parameters following various types of distribution laws are proposed.
Mohamed Ben Said, Lahcen Azrar, Driss Sarsri   +2 more
doaj   +1 more source

High Gene Flow With Patterns of Asymmetric Connectivity and Adaptive Divergence in the New Zealand Southern Rock Lobster, Jasus edwardsii (Hutton, 1875)

Evolutionary Applications, Volume 19, Issue 4, April 2026.
ABSTRACT Understanding patterns of connectivity and adaptive divergence is crucial for supporting conservation and sustainable management of harvested species. This study utilised single nucleotide polymorphisms (SNPs) to investigate spatially explicit patterns of genetic structure, gene flow and adaptive divergence in the commercially important ...
Michael J. R. Mendiola, Irina Ilushkina, Jan M. Strugnell, Nick Murphy, James J. Bell, Jonathan P. A. Gardner   +5 more
wiley   +1 more source

Pollution Permits and Financing Costs

Journal of Money, Credit and Banking, Volume 58, Issue 3, Page 637-679, April 2026.
Abstract Effective environmental policy should consider how the financiers of polluting firms behave. We study phase III of the EU Emission Trading System. Loan spreads for cap‐and‐trade participants are a function of compliance costs, permit market features, and firms’ strategic actions.
FABIO ANTONIOU, MANTHOS D. DELIS, STEVEN ONGENA, CHRIS TSOUMAS   +3 more
wiley   +1 more source

Reliability-Based Robust Design Optimization Using Data-Driven Polynomial Chaos Expansion

Machines
As the complexity of modern engineering systems continues to increase, traditional reliability analysis methods still face challenges regarding computational efficiency and reliability in scenarios where the distribution information of random variables ...
Zhaowang Li, Zhaozhan Li, Jufang Jia, Xiangdong He   +3 more
doaj   +1 more source

Analysis of the Stochastic Quarter-Five Spot Problem Using Polynomial Chaos. [PDF]

Molecules, 2020
AbdelFattah H, Al-Johani A, El-Beltagy M.   +2 more
europepmc   +1 more source

Efficient sampling for polynomial chaos-based uncertainty quantification and sensitivity analysis using weighted approximate Fekete points. [PDF]

Int J Numer Method Biomed Eng, 2020
Burk KM, Narayan A, Orr JA.
europepmc   +1 more source

Stochastic Optimization using Polynomial Chaos Expansions

, 2020
Polynomial chaos based methods enable the efficient computation of output variability in the presence of input uncertainty in complex models. Consequently, they have been used extensively for propagating uncertainty through a wide variety of physical systems.
openaire   +2 more sources

Study on precision reliability evaluation method of harmonic drive based on NIPCE considering wear

Scientific Reports
A dynamic reliability evaluation method for precision of harmonic drive considering wear is proposed to estimate the precision reliability of harmonic drive precisely for precision degradation failure prediction and proactive maintenance.
Xian Zhang, Changming Zhang, Peng Wang, Chunlei Peng, Fan Yang   +4 more
doaj   +1 more source

Fast uncertainty quantification for dynamic flux balance analysis using non-smooth polynomial chaos expansions. [PDF]

PLoS Comput Biol, 2019
Paulson JA, Martin-Casas M, Mesbah A.
europepmc   +1 more source