Search Results - "Fourier transforms"

Analytical Modeling of Advection–Conduction Heat Transfer Outside Borehole Heat Exchangers Under Dirichlet Boundary Conditions.

Authors: Wei, Ting Wang, Lijuan Ren, Honglei et al.

Source: Energies (19961073). May2026, Vol. 19 Issue 9, p2206. 19p.

Subject Terms: *Fourier transforms, *Boundary value problems, *Mathematical analysis, *Heat convection, *Numerical analysis, *Geothermal wells, *Groundwater flow, *Ground source heat pump systems

Accurate and Efficient Harmonic Estimation for LCC-HVDC Systems.

Authors: Wang, Dan Hu, Sijia Lin, Jinjie et al.

Source: Energies (19961073). Apr2026, Vol. 19 Issue 7, p1758. 22p.

Subject Terms: *Discrete Fourier transforms, *Harmonic analysis (Mathematics), *Signal processing, *Signal frequency estimation, *Electric power systems, *Electric impedance measurement

Adjusting diurnal error in dielectric-based in situ soil moisture measurements via Fourier time-filtering using land surface model datasets.

Authors: Han, Junnyeong Seo, Eunkyo Dirmeyer, Paul A.

Source: Hydrology & Earth System Sciences. 2026, Vol. 30 Issue 7, p2207-2223. 17p.

Subject Terms: *Soil moisture, *Fourier transforms, *Circadian rhythms, *Land-atmosphere interactions, *Temperature effect, *Evapotranspiration, *Dielectric devices

An Integrated Ray Tracing and Variable-Step Fourier Transform-Based Split-Step Parabolic Equation Modeling Approach for UAV-Assisted Channel Characterization in Mountainous Environments.

Authors: Shi, Jihui Song, Jian

Source: Progress in Electromagnetics Research C. 2026, Vol. 168, p1-10. 10p.

Subjects: Ray tracing, Fourier transforms, Emergency communication systems, Parabolic differential equations, Wireless communications, Uplands, Millimeter wave communication systems

基于频域门控 Transformer 的润叶过程参数预测方法.

Alternate Title: Parameter prediction of the tobacco leaf conditioning process based on a frequency-domain gated Transformer.

Authors: 王先兵 龚剑 黄毅 et al.

Source: Acta Tabacaria Sinica / Zhongguo Yancao Xuebao. Jun2026, Vol. 32 Issue 3, p85-96. 12p.

GPU-Accelerated Signal Processing for Distributed Vibration Sensing Based on OVNA Method.

Authors: Meoli, Alessandro Vallifuoco, Raffaele Coscetta, Agnese et al.

Source: Sensors (14248220). Jun2026, Vol. 26 Issue 11, p3314. 20p.

基于傅里叶卷积和小波变换自注意力机制的 低光照图像增强算法.

Alternate Title: Low-light Image Enhancement Algorithm Based on Fourier Convolution and Wavelet Transform Self-attention Mechanism.

Authors: 张易航 钟寒

Source: Science Technology & Engineering. 2026, Vol. 26 Issue 16, p6939-6953. 15p.

Comparing Fourier Transform and Direct Wave Fitting in NMR FID Data Analysis.

Authors: Chen, Jixin¹ (AUTHOR) chenj@ohio.edu

Source: Magnetic Resonance. 6/1/2026, p1-15. 15p.

Second Titchmarsh's theorem for the generalized Fourier transform in the space L^p(dμk, n).

Authors: El Hamma, Mohamed Chablaoui, Abdessalam Daher, Radouan

Source: Journal of Applied Analysis. Jun2026, Vol. 32 Issue 1, p1-6. 6p.

Mechanical resonator–based quantum computing.

Authors: Yang, Yu Kladarić, Igor Skrabulis, Martynas et al.

Source: Science. 5/28/2026, Vol. 392 Issue 6801, p972-976. 5p.

Subjects: Quantum computing, Qubits, Quantum information science, Fourier transforms, Acoustic resonators

Efficient 3D DC-Resistivity Forward Modeling in the Mixed Space-Wavenumber Domain Using a 1D Finite-Difference Method.

Authors: Ling, Jiaxuan Li, An Wei, Shuliu et al.

Source: Applied Sciences (2076-3417); May2026, Vol. 16 Issue 10, p4860, 20p

FRFT and Cyclic Prefix Refinement for Coarse-to-Fine Doppler Estimation in Coded OFDM Underwater Acoustic Communications.

Authors: Wei, Bo Xuan, Shihao Xing, Siyu et al.

Source: Applied Sciences (2076-3417); May2026, Vol. 16 Issue 10, p4633, 15p

The return times theorem, auto-correlation and sequences with an empty Fourier-Bohr spectrum.

Authors: TAL, MATAN¹ matan.tal@mail.huji.ac.il

Source: Studia Mathematica. 2026, Vol. 288 Issue 2, p135-154. 20p.

Recent Advances and Future Prospects of Bayesian Operational Modal Analysis: Identification Algorithms, Uncertainty Computation, and Applications.

Authors: Xu, Wei Guan, Ziyu Zhu, Yichen

Source: Buildings (2075-5309); May2026, Vol. 16 Issue 9, p1807, 32p

Causal Learning for Continuous Variables with an Improved Bayesian Network Constructed by Symmetric Kernel Function Acceleration.

Authors: Wei, Chenghao Wang, Pukai Li, Chen et al.

Source: Symmetry (20738994). May2026, Vol. 18 Issue 5, p731. 30p.

Continuous-Variable Quantum Fourier Layer: Applications to Filtering and PDE Solving.

Authors: Marcandelli, Paolo Mariani, Stefano Siena, Martina et al.

Source: Algorithms. May2026, Vol. 19 Issue 5, p370. 26p.

Frequency-Guided Multi-Scale Dehazing Network with Cross-Domain Spatial–Spectral Gating.

Authors: Jin, Fangyuan Lin, Hui Zhang, Lu et al.

Source: Algorithms. May2026, Vol. 19 Issue 5, p341. 16p.

Comparison of Thin Film Thickness Determination Methods Based on X‐Ray Reflectivity.

Authors: Lishchenko, Natalia Morris, Michael Larshin, Vasily et al.

Source: Journal of Nanotechnology; 4/24/2026, Vol. 2026, p1-17, 17p

CSFCNet: Cascaded Spatial-Frequency Convolutional Network for Hyperspectral Image Classification.

Authors: Jiang, Feng Liu, Xin Li, Mingxuan et al.

Source: Sensors (14248220). Apr2026, Vol. 26 Issue 8, p2325. 22p.

Sharp Fourier inequalities and lattice point discrepancy for lp-balls.

Authors: Lind, Martin¹ (AUTHOR) martin.lind@kau.se

Source: Journal of Inequalities & Applications. 4/16/2026, Vol. 2026 Issue 1, p1-16. 16p.