Showing 101 - 120 results of 2,351 for search 'the diffusion efficiency', query time: 0.11s Refine Results
  1. 101

    Establishment and Solution for a Mathematical Model of Multiple Diffuse Reflection by Zhenmin Zhu, Xin Xu, Xiang Sun, Xinyun Wang

    Published 2020-01-01
    “…On the basis of the Lambertian characteristic of LEDs and the ideal diffuse surface, a design method that features a multiple diffuse reflectance freeform surface is proposed and its related mathematical model is established in this paper. …”
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  2. 102

    An immersed interface method for nonlinear convection–diffusion equations with interfaces by Miguel Uh Zapata, Reymundo Itza Balam, Silvia Jerez

    Published 2025-09-01
    “…Numerical simulations for several benchmark problems show the robustness and efficiency of the proposed scheme.…”
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  3. 103

    Bohm Diffusion in Magnetron Sputtering System: A Review Article by Murad M. Kadhim, Qusay A. Abbas

    Published 2024-12-01
    “… This review provides a comprehensive analysis of recent advances in understanding Bohm diffusion in magnetron sputtering systems, a process critical for optimizing thin-film deposition. …”
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  4. 104

    Three-Dimensional Surface Reconstruction for Specular/Diffuse Composite Surfaces by Chung-Hsuan Huang, Ssu-Chia He, Tsung-Yu Chen, Chau-Jern Cheng, Han-Yen Tu

    Published 2024-12-01
    “…This paper presents an effective three-dimensional (3D) surface reconstruction technique aimed at profiling composite surfaces with both specular and diffuse reflectance. Three-dimensional measurements based on fringe projection techniques perform well on diffuse reflective surfaces; however, when the measurement targets contain both specular and diffuse components, the efficiency of fringe projection decreases. …”
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  5. 105

    Multi-scale adversarial diffusion network for image super-resolution by Yanli Shi, Xianhe Zhang, Yi Jia, Jinxing Zhao

    Published 2025-04-01
    “…Abstract Image super-resolution methods based on diffusion models have achieved remarkable success, but they still suffer from two significant limitations. …”
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  6. 106

    Two-stage Mamba-based diffusion model for image restoration by Lei Liu, Luan Ma, Shuai Wang, Jun Wang, Silas N. Melo

    Published 2025-07-01
    “…DSSM combines Mamba’s high efficiency with the representative power of diffusion models, enhancing both inference and training. …”
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  7. 107
  8. 108

    Accelerating Multiphase Simulations With Denoising Diffusion Model Driven Initializations by Jaehong Chung, Agnese Marcato, Eric J. Guiltinan, Tapan Mukerji, Hari Viswanathan, Yen Ting Lin, Javier E. Santos

    Published 2024-12-01
    “…Abstract This study introduces a hybrid fluid simulation approach that integrates generative diffusion models with physics‐based simulations, aiming at reducing the computational costs of flow simulations while still honoring all the physical properties of interest. …”
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  9. 109

    Option Pricing under the Jump Diffusion and Multifactor Stochastic Processes by Shican Liu, Yanli Zhou, Yonghong Wu, Xiangyu Ge

    Published 2019-01-01
    “…For the reason that the combination of multiscale volatility processes and jump diffusion process results in a high dimensional differential equation (PIDE), an efficient finite element method is proposed and the integral term arising from the jump term is absorbed to simplify the problem. …”
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  10. 110

    Variational Image Denoising Approach with Diffusion Porous Media Flow by Tudor Barbu

    Published 2013-01-01
    “…One designs here a nonlinear filter for image noise reduction based on the diffusion flow generated by the porous media equation ∂u/∂t=Δβ(u), where β is a nonlinear continuous function of the form β(u)=λum, 0<m<1. …”
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  11. 111

    Diffused-Line-of-Sight Communication for Mobile and Fixed Underwater Nodes by Yujian Guo, Meiwei Kong, Omar Alkhazragi, Xiaobin Sun, Mohammed Sait, Tien Khee Ng, Boon S. Ooi

    Published 2020-01-01
    “…This work describes a pulse-position-modulation-based (PPM-based) diffused-line-of-sight UWOC system that offers a solution to this issue. …”
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  12. 112

    Diffusion of Proteins Across the Nuclear Envelope of HeLa Cells by Shivani Chatterjee, Ursula Stochaj

    Published 1998-04-01
    “…We define different conditions that promote the diffusion of small nuclear proteins across the nuclear envelope of mammalian culture cells. …”
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  13. 113

    Classification of Alzheimer's disease using unsupervised diffusion component analysis by Dominique Duncan, Thomas Strohmer

    Published 2016-07-01
    “…The new algorithm constructs coordinates as an extension of diffusion maps and generates efficient geometric representations of the complex structure of the MRI data. …”
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  14. 114

    Investigation of New Design Principles for the Centrifugal Compressor Vaned Diffusers by Qingkuo Li, Zhigang Sun, Xingen Lu, Yingjie Zhang, Ge Han

    Published 2022-01-01
    “…The vaned diffusers with subsonic, transonic and supersonic inlet conditions were optimized with the new design principles, and the peak efficiencies were increased by 4.23%, 2.15% and 2.59%, respectively. …”
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  15. 115

    Innovative Solutions to the Fractional Diffusion Equation Using the Elzaki Transform by Saima Noor, Albandari W. Alrowaily, Mohammad Alqudah, Rasool Shah, Samir A. El-Tantawy

    Published 2024-09-01
    “…By integrating these methodologies, we achieve accurate and efficient solutions to the fractional diffusion equation. …”
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  16. 116

    The mean first passage time as a natural diffusion distance by Maxim J. Goldberg, Seonja Kim

    Published 2025-08-01
    “…Even if the transition matrix does not arise from heat flow, and may in fact be non-symmetric and non-bistochastic, we note that the MFPT satisfies the triangle inequality. Moreover, various efficient ways to compute the MFPT, and approximations to the MFPT, have been proposed in the literature.Additionally, we establish a novel connection between certain mean first passage times and the sum of squares of Coifman-Lafon diffusion distances across all scales.…”
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  17. 117

    Using Spinodal Decomposition to Investigate Diffusion Enhancement and Vacancy Population by Xinren Chen, Frédéric De Geuser, Alisson Kwiatkowski da Silva, Chuanlai Liu, Eric Woods, Dirk Ponge, Baptiste Gault, Dierk Raabe

    Published 2025-04-01
    “…Abstract Material sustainability requires energy‐efficient and rapid strengthening processes. In alloys, strengthening through diffusion‐driven precipitation is limited by the low vacancy concentration, with fewer than one vacancy per 100 billion lattice sites at room temperature in metals such as aluminum and iron under thermodynamic equilibrium. …”
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  18. 118

    KEDM: Knowledge-Embedded Diffusion Model for Infrared Image Destriping by Lingxiao Li, Xin Wang, Dan Huang, Yunan He, Zhuqiang Zhong, Qingling Xia

    Published 2025-01-01
    “…Specifically, LDM leverages a pretrained variational autoencoder (VAE) to transform the input image into latent feature space for efficient diffusion propagation, reducing computational complexity while preserving image restoration quality. …”
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  19. 119

    Modeling nitric oxide diffusion and plasticity modulation in cerebellar learning by Alessandra Maria Trapani, Carlo Andrea Sartori, Benedetta Gambosi, Alessandra Pedrocchi, Alberto Antonietti

    Published 2025-06-01
    “…We developed the NO Diffusion Simulator (NODS), a Python module designed to model NO production and diffusion within a cerebellar spiking neural network framework. …”
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  20. 120