Showing 541 - 560 results of 2,557 for search '(functional OR function) gradient', query time: 0.14s Refine Results
  1. 541
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  3. 543

    Migración mediante apilado por difracción en medios con gradiente constante de velocidad by Castillo López Luis Antonio

    Published 2001-08-01
    “…In order to better understanding the numerical behavior of the proposed algorithm, we consider in this paper only the kinematic aspects of migration process, i.e. when the weight function is the unit. &lt;/span&gt;&lt;/p&gt;<br>&lt;p class="MsoNormal" style="line-height: normal; margin: 0cm 0cm 0pt; mso-layout-grid-align: none;"&gt;&lt;span style="font-family: "&gt;Para investigar la reflectividad en el subsuelo de la Tierra por métodos sísmicos, se necesita introducir algunas suposiciones acerca del macromodelo de velocidades para la capa suprayacente al reflector. …”
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  4. 544

    QPPLab: A generally applicable software package for detecting, analyzing, and visualizing large-scale quasiperiodic spatiotemporal patterns (QPPs) of brain activity by Nan Xu, Behnaz Yousefi, Nmachi Anumba, Theodore J. LaGrow, Xiaodi Zhang, Shella Keilholz

    Published 2025-02-01
    “…Quasi-periodic patterns (QPPs) are prominent spatiotemporal brain dynamics observed in functional neuroimaging data, reflecting the alternation of high and low activity across brain regions and their propagation along cortical gradients. …”
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  5. 545

    Isolate Circulating Mesenchymal Stromal Cells Without Growth Factor Administration and Using Density Gradient by Jason Ma, Chung-Chuan Hsiung, Tzu-Hsien Yang, Hsiu-Yen Sun, Ming-Ling Kuo

    Published 2025-01-01
    “…These PB-MSCs also exhibited immunomodulatory functions and are capable of suppressing T cell activation. …”
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    The research on full-waveform inversion method and its application based on Hessian operator preprocessing by Fei-Long Yang, Fei-Long Yang, Fei-Long Yang, Hui-Li Zhang, Feng-Ming Yao, Lei Wang, Yun-Hong Zhu

    Published 2025-03-01
    “…Firstly, the adjoint gradient method is used to iteratively optimize the gradient of the model with respect to the residuals of the observed data when solving the objective function. …”
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  9. 549

    MTAHG and MTBHG: Modified Approaches for Interpreting Gravity Data by Hazel Deniz Toktay, Hanbing Ai, Ahmad Alvandi, Kejia Su, Jinlei Li

    Published 2025-04-01
    “…This paper proposes two effective edge detection tools: one combining the balanced total horizontal gradient (BHG), and the hyperbolic tangent function, abbreviated as “MTBHG”; and the other combining the tilt angle of the total horizontal gradient (TAHG) and the hyperbolic tangent function, abbreviated as “MTAHG.” …”
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  10. 550
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    Coupling image denoising model based on total variation by Mei-ling WANG, Xian-chun ZHOU, Lin-feng ZHOU, Lan-fang SHI

    Published 2016-04-01
    “…First, a trend fidelity term based on the change tendency of image gradient was established. The fidelity term could not only remove image noise, but also restrain “staircase effect”. …”
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  12. 552

    Vibration analysis of functionally graded plates with porosity composed of a mixture of Aluminum (Al) and Alumina (Al2O3) embedded in an elastic medium by Hayat Saidi, Meriem Sahla

    Published 2019-08-01
    “…Some examples are performed to demonstrate the effect of changing gradient material, elastic parameters, porosity index, and length to thickness ratios on the fundamental frequency of functionally graded plate.…”
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  13. 553

    Optimizing ethanol gas sensor with rGO layer addition on LaFeO3–Pd doped material using density functional theory

    Published 2025-07-01
    “…In this study, the optimization of the ethanol gas sensor was explored by adding reduced graphene oxide (rGO) to Pd–LaFeO3, focusing on adsorption energy and band gap energy using density functional theory (DFT) with the generalized gradient approximation (GGA-PBEsol) simulation method. …”
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  14. 554

    An effective method for anomaly detection in industrial Internet of Things using XGBoost and LSTM by Zhen Chen, ZhenWan Li, Jia Huang, ShengZheng Liu, HaiXia Long

    Published 2024-10-01
    “…Finally, combining the optimal threshold and loss function, we propose a model named MIX_LSTM for anomaly detection in IIoT. …”
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  15. 555

    Modifikasi Sifat Elektronik Material Perovskit NaYTiO4 oleh Variasi Konsentrasi Dopan Lantanum dengan Metode Density Functional Theory by Wisanggeni Bayu Aji, Hari Sutrisno

    Published 2022-02-01
    “…Energi celah pita dan density of state (DOS) dari NaY(1-x)LaxTiO4 (x = 0; 0,25; 0,50 dan 0,75) dapat diprediksi secara teoritis menggunakan pendekatan density functional theory (DFT). Perhitungan awal berdasarkan atas pendekatan local density approximation (LDA) dan generalized gradient approximation dari Perdew-Burke-Ernzerhof (GGA+PBE) sebagai fungsional tukar-korelasi. …”
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  16. 556

    Corrective and new research frontier of dual-phase -lag non-fourier heat conduction in functionally graded cylindrical materials with bi-directional property variations by P. Das, M.A. Islam, M.A. Hasib

    Published 2024-11-01
    “…This study presents a novel and corrective analysis of Dual-Phase-Lag (DPL) non-fourier heat conduction in functionally graded cylindrical materials with bi-directional property variations. …”
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  17. 557

    A multi-modal study on cerebrovascular dysfunction in cognitive decline of de novo Parkinson’s disease by Hongwei Li, Xiali Shao, Jia Jia, Bingyi Wang, Jian Wang, Kai Liu, Jinhan Chen, Zhensen Chen, Lirong Jin, He Wang

    Published 2025-01-01
    “…CBF derived from arterial spin labeling, RS-CVR and FCD generated from resting-state functional MRI and the arterial morphology extracted from the magnitude images of multi-echo gradient echo. …”
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  18. 558

    Long-Term (2015–2024) Daily PM<sub>2.5</sub> Estimation in China by Using XGBoost Combining Empirical Orthogonal Function Decomposition by Jiacheng Jiang, Jiaxin Dong, Yu Ding, Wenjia Ni, Jie Yang, Siwei Li

    Published 2025-05-01
    “…Then, a novel approach by integrating XGBoost with EOF (Empirical Orthogonal Function) decomposition is introduced for PM<sub>2.5</sub> estimation. …”
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  19. 559

    Life History Strategies Drive Meso‐Scale Distribution Patterns in Coastal Benthic Macroinvertebrates by Molline Natanah C. Gusha, Christopher D. McQuaid

    Published 2024-10-01
    “…Trait information was collected for 150 intertidal macroinvertebrates along a 3000 km environmental and biogeographic gradient on the South African coast. This information was analysed, as functional entities (FEs) were species performing similar functions that have the same trait values and were further condensed into two trait domains (Reproduction and Lifestyle). …”
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