Showing 321 - 340 results of 2,351 for search 'the diffusion efficiency', query time: 0.12s Refine Results
  1. 321

    DCT-DiffPose: A Lightweight Diffusion Model With Multi-Hypothesis for 3D Human Pose Estimation by Linzhan Zhong, Fangni Chen, Bolun Zheng, Rui Feng, Lei Zhang, Jian Wan

    Published 2025-01-01
    “…3D human pose estimation is a crucial task in computer vision with extensive applications, yet it remains challenging due to depth ambiguity and constraints on computational efficiency. In this paper, we propose DCT-DiffPose, a novel framework that integrates a diffusion model with Confidence and Consistency-based Multi-Hypothesis Aggregation (CCMA). …”
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  2. 322

    Employing a Carbon-Based Nanocomposite as a Diffusive Solid-Phase Extraction Adsorbent for Methamphetamine for Therapeutic Purposes by K. Lakshmi Kala, G. Anbuchezhiyan, Kavitha Pingili, Pradeep Kumar Singh, V. M. Vel, Kareem Yusuf, Ahmed Muteb Aljuwayid, Md Ataul Islam, David Christopher

    Published 2023-01-01
    “…Moreover, the practical and efficient synthesis process stimulates the use of carbon-based compounds in various extraction procedures. …”
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  3. 323

    A Novel Renewable Energy Scenario Generation Method Based on Multi-Resolution Denoising Diffusion Probabilistic Models by Donglin Li, Xiaoxin Zhao, Weimao Xu, Chao Ge, Chunzheng Li

    Published 2025-07-01
    “…To address this gap, this paper proposes a novel renewable energy scenario generation method based on a multi-resolution diffusion model. To accurately capture fluctuation characteristics across multiple time scales, we introduce a diffusion model in conjunction with a multi-scale time series decomposition approach, forming a multi-stage diffusion modeling framework capable of representing both long-term trends and short-term fluctuations in RES output. …”
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  4. 324

    Reduced gas diffusion resistance via modification of negatrode morphology for steam/CO2 co-electrolysis SOEC by Hirofumi Sumi, Mizuki Momai, Yohei Tanaka, Toshiaki Matsui

    Published 2025-10-01
    “…Solid oxide electrolysis cells (SOECs) exhibit remarkable efficiency in the production of syngas, a mixture of hydrogen and carbon monoxide, owing to their ability to electrolyze steam and carbon dioxide simultaneously. …”
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  5. 325

    Effect of rare earth La on hydrogen diffusion and hydrogen embrittlement susceptibility of 42CrMo martensitic steel by Hanqiang Liu, Xing Li, Chaoyun Yang, Yikun Luan, Dianzhong Li

    Published 2025-03-01
    “…Consequently, the appropriate addition of La can effectively impede hydrogen diffusion, improve hydrogen trapping efficiency and reduce HE susceptibility in martensitic steel.…”
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  6. 326

    Quantitative control of interfacial structure and thermal conductivity between diamond and copper via thermal diffusion of alloying element by Yizhe Cao, Bo Li, Lei Liu, Shaolong Li, Dongxu Hui, Shaodi Wang, Huiying Liu, Xin Li, Xin Zhang, Shengyin Zhou, Shufeng Li

    Published 2024-11-01
    “…It is found that the main characteristics of chromium carbide layer is more related to the holding time, that is, prolonged thermal diffusion. The extraction of diamonds in as-sintered composites allows a detailed quantification of coating efficiency and crystallographic-facet-dependence of chromium carbide interfaces during diamond/metal reaction at varying temperature and holding times. …”
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  7. 327
  8. 328

    $ \alpha $-robust error analysis of two nonuniform schemes for Caputo-Hadamard fractional reaction sub-diffusion problems by Xingyang Ye, Xiaoyue Liu, Tong Lyu, Chunxiu Liu

    Published 2025-01-01
    “…In this paper, we focused on the Caputo-Hadamard fractional reaction sub-diffusion equations. By using the nonuniform L1 scheme and nonuniform Alikhanov scheme in the temporal domain, we formulated two efficient numerical schemes, where the second order difference method was used in the spatial dimension. …”
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  9. 329

    Modeling Hydrologically Mediated Hot Moments of Transient Anomalous Diffusion in Aquifers Using an Impulsive Fractional‐Derivative Equation by Yong Zhang, Xiaoting Liu, Dawei Lei, Maosheng Yin, HongGuang Sun, Zhilin Guo, Hongbin Zhan

    Published 2024-03-01
    “…The model is approximated using an L1‐based finite difference solver with unconditional stability and an efficient convergence rate. Application results demonstrate that the IT‐fADE model and its solver successfully capture TAD induced by hydrologically trigged hot phenomena (including hot moments and hot spots) across three distinct aquifers: (a) transient sub‐diffusion arising from sudden shifts in hydraulic gradient within a regional‐scale alluvial aquifer, (b) transient sub‐ or super‐diffusion due to convergent or push‐pull tracer experiments within a local‐scale fractured aquifer, and (c) transient sub‐diffusion likely attributed to multiple‐conduit flow within an intermediate‐scale karst aquifer. …”
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  10. 330

    Conditional Diffusion-Flow models for generating 3D cosmic density fields: applications to f(R) cosmologies by Julieth K Riveros, Paola A Saavedra, Héctor J Hortúa, Jorge Enrique García-Farieta, Ivan Olier

    Published 2025-01-01
    “…We address this challenge by exploring conditional generative modelling to create 3D dark matter density fields via score-based (diffusion) and flow-based methods. Our results demonstrate the power of diffusion models to accurately reproduce the matter power spectra and bispectra, even for unseen configurations. …”
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  11. 331

    Enhancing Atmospheric Turbulence Phase Screen Generation with an Improved Diffusion Model and U-Net Noise Generation Network by Hangning Kou, Min Wan, Jingliang Gu

    Published 2025-04-01
    “…To overcome these challenges, this paper proposes an improved denoising diffusion probabilistic model (DDPM) for generating high-fidelity atmospheric turbulence phase screens. …”
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  12. 332

    Equivariant spherical CNNs for accurate fiber orientation distribution estimation in neonatal diffusion MRI with reduced acquisition time by Haykel Snoussi, Davood Karimi

    Published 2025-07-01
    “…Early and accurate assessment of brain microstructure using diffusion Magnetic Resonance Imaging (dMRI) is crucial for identifying neurodevelopmental disorders in neonates, but remains challenging due to low signal-to-noise ratio (SNR), motion artifacts, and ongoing myelination. …”
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  13. 333

    Improving Brain Metabolite Detection with a Combined Low-Rank Approximation and Denoising Diffusion Probabilistic Model Approach by Yeong-Jae Jeon, Kyung Min Nam, Shin-Eui Park, Hyeon-Man Baek

    Published 2024-11-01
    “…This study aimed to develop a hybrid denoising strategy that integrates low-rank approximation and denoising diffusion probabilistic model (DDPM) to enhance MRS data quality and shorten scan times. …”
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  14. 334

    Transformation of TiN to TiNO Films via In-Situ Temperature-Dependent Oxygen Diffusion Process and Their Electrochemical Behavior by Sheilah Cherono, Ikenna Chris-Okoro, Mengxin Liu, R. Soyoung Kim, Swapnil Nalawade, Wisdom Akande, Mihai Maria-Diana, Johannes Mahl, Christopher Hale, Junko Yano, Shyam Aravamudhan, Ethan Crumlin, Valentin Craciun, Dhananjay Kumar

    Published 2025-04-01
    “…Structural control was achieved via temperature-dependent oxygen in-diffusion, nitrogen out-diffusion, and the nucleation growth process related to adatom mobility. …”
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  15. 335

    Finite Difference/Fractional Pertrov–Galerkin Spectral Method for Linear Time-Space Fractional Reaction–Diffusion Equation by Mahmoud A. Zaky

    Published 2025-06-01
    “…In the temporal domain, finite difference schemes on uniformly graded meshes are commonly employed; however, achieving accuracy remains challenging for non-smooth solutions. In this paper, an efficient algorithm is adopted to improve the accuracy of finite difference/Pertrov–Galerkin spectral schemes for a time-space fractional reaction–diffusion equation, with a hyper-singular integral fractional Laplacian and non-smooth solutions in both time and space domains. …”
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  16. 336

    Diagnostic Accuracy of Diffusion Weighted Imaging in Differentiating Benign and Malignant Breast Lesions: A Cross-Sectional Study by Srestha Khan, Senthil Kumar Aiyappan, Ragitha Ramesh, Shriram Natarajan, Ramya Sai Dachepalli, Nishant

    Published 2024-11-01
    “…Apparent Diffusion Coefficient (ADC) is the objective measure of diffusion and is usually lower in malignant breast lesions. …”
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  17. 337

    Physical simulation of aerodynamic flow characteristics in a vertical diffuser with air supply through different pipe configurations by L. V. Plotnikov, A. F. Ryzhkov, V. A. Medvedev, M. D. Smirnykh, L. E. Osipov

    Published 2023-06-01
    “…RELEVANCE. Vertical cone diffusers are used in various technical applications: heat exchangers, gas cleaning units, boilers, industrial furnaces, dryers, ventilation devices, nozzle systems and others. …”
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  18. 338

    EVALUATION OF THE AFFINITY OF RADIOLABELED PEPTIDE [¹³¹I]I-DEDEYFELV FOR EGFR-OVEREXPRESSING RECEPTORS IN ADULT-TYPE DIFFUSE GLIOMAS by Julia Calviello Giordano, Fernanda Paiva Augusto Rodrigues, Danielle Vieira Sobral, Leonardo Lima Fuscaldi, Fabio Luiz Navarro Marques, Marycel Figols de Barboza, João Luiz vitorino Araújo, Luciana Malavolta

    Published 2025-05-01
    “…Mass spectrometry and HPLC analyses confirmed efficient synthesis, cleavage, and purification, as evidenced by a single peak and a molecular mass corresponding to the expected peptide. …”
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  19. 339

    Whole-Body Diffusion-Weighted Magnetic Resonance Imaging and Positron Emission Tomography Combined with Computed Tomography in the Staging of Lymphomas by S. A. Kharuzhyk, E. A. Zhavrid, A. V. Dzyuban, K. V. Poddubnyy, E. V. Sukolinskaya, O. A. Kalenik

    Published 2020-01-01
    “…Objective – to compare the diagnostic efficiency of whole-body diffusion-weighted magnetic resonance imaging (DW-MRI) and positron emission tomography combined with computed tomography (PET/CT) in the staging of lymphomas.Material and methods. …”
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  20. 340

    CO₂ dissolution-diffusion in clay inhibitor/oil systems and synergistic CCUS-EOR effects in strongly water-sensitive reservoirs by Miaoxin Zhang, Jingchun Wu, Liyuan Cai, Bo Li, Xin Yu, Yangyang Hou, Fang Shi, Chunlong Zhang

    Published 2025-07-01
    “…It is demonstrated that the sweep efficiency is anti-swelling system-CO₂ flooding is a higher sweep efficiency (73.95%) and achieves 58.12% oil recovery and 46.16% CO2 sequestration efficiency in a core with a permeability of 102.95 × 10−3 μm². …”
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