Showing 501 - 520 results of 6,267 for search '"diffusion"', query time: 0.10s Refine Results
  1. 501

    Pattern Formation in a Predator-Prey Model with Both Cross Diffusion and Time Delay by Boli Xie, Zhijun Wang, Yakui Xue

    Published 2014-01-01
    “…A predator-prey model with both cross diffusion and time delay is considered. We give the conditions for emerging Turing instability in detail. …”
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  2. 502

    Theoretical framework and methods for the analysis of the adoption-diffusion of innovations in agriculture: a bibliometric review by Rafael Mesa Manzano, Javier Esparcia Pérez

    Published 2023-02-01
    “…In recent years, social scientists have studied the diffusion and adoption of agricultural innovations from different approaches, such as innovation diffusion theory, behavioral models, econometric models, social capital and social network analysis, among others. …”
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  3. 503

    Spatial localization and diffusion of Dirac particles and waves induced by random temporal medium variations by Seulong Kim, Kihong Kim

    Published 2025-01-01
    “…Numerical simulations reveal that narrow wave pulses evolve into Gaussian shapes, with their centers localizing and their widths growing indefinitely due to diffusive behavior. This universal phenomenon is independent of the initial pulse profile and the statistical properties of the random mass. …”
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  4. 504

    Error Estimates for the Heterogeneous Multiscale Finite Volume Method of Convection-Diffusion-Reaction Problem by Tao Yu, Peichang Ouyang, Haitao Cao

    Published 2018-01-01
    “…Based on the heterogeneous multiscale method, this paper presents a finite volume method to solve multiscale convection-diffusion-reaction problem. The paper constructs an algorithm of the optimal order convergence rate in H1-norm under periodic medias.…”
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  5. 505

    Evaluation Technique of Chloride Penetration Using Apparent Diffusion Coefficient and Neural Network Algorithm by Yun-Yong Kim, Byung-Jae Lee, Seung-Jun Kwon

    Published 2014-01-01
    “…This paper proposes a simple analysis technique for chloride behavior using apparent diffusion coefficient from neural network algorithm with time-dependent diffusion phenomena. …”
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  6. 506
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  8. 508

    A Novel Active Vibration Control Method for Helicopter Fuselages Based on Diffusion Cooperation by Jingliang Li, Yang Lu

    Published 2023-01-01
    “…First, a novel control law was established by introducing the network topology of the diffusion cooperation strategy into the classical filtered-x least mean square (FxLMS) algorithm, forming the diffusion FxLMS (DFxLMS) algorithm. …”
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  9. 509
  10. 510

    Laws of Gas Diffusion in Coal Particles: A Study Based on Experiment and Numerical Simulation by Yongjiang Hao, Xiaofeng Ji, Jiewen Pang

    Published 2021-01-01
    “…Then, according to Fick diffusion law and Darcy percolation law, the mathematical models of methane emission from the spherical coal particles were created, respectively, and the corresponding calculating software was programmed by the finite difference method to obtain the simulated CMDQ of each sample under different conditions. …”
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  11. 511

    Nondestructive Detection of Moisture Content in Walnut Kernel by Near-Infrared Diffuse Reflectance Spectroscopy by Dan Peng, Yali Liu, Jiasheng Yang, Yanlan Bi, Jingnan Chen

    Published 2021-01-01
    “…In this study, a regression model for moisture content in walnut kernel was developed based on NIR diffuse reflectance spectroscopy using chemometric methods. …”
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  12. 512
  13. 513

    Time-Frequency Characterization of Rotating Instabilities in a Centrifugal Pump with a Vaned Diffuser by G. Pavesi, G. Cavazzini, G. Ardizzon

    Published 2008-01-01
    “…This paper presents acoustic and flowdynamic investigations of large-scale instabilities in a radial pump with a vaned diffuser. Pressure fluctuations were measured with transducers placed flush at the inlet duct, at the impeller discharge, and in the vane diffuser walls. …”
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  14. 514
  15. 515

    Three-Dimensional Diffusion Model in Sports Dance Video Human Skeleton Detection and Extraction by Zhi Li

    Published 2021-01-01
    “…With the continuous updating of diffusion model acquisition equipment, the rapid development of 3D reconstruction technology, and the continuous enhancement of computing power, the research on the application of 3D diffusion model in the detection and extraction of a human skeleton in sports dance videos has become a hot direction in the field of computer vision and computer graphics. …”
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  16. 516

    Proton Exchange Membrane Fuel Cells: Effects of Gas Diffusion Layer Porosity Differences by Kabouchi Kaoutar, Ettouhami Mohamed Karim

    Published 2025-01-01
    “…Fuel cells are a key technology for clean energy production due to their low environmental impact and their high efficiency, yet optimizing their performance remains challenging, particularly regarding the gas diffusion layer (GDL). The GDL is critical for distributing reactants and removing products within the cell. …”
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  17. 517
  18. 518

    Cooperative behavior in a jump diffusion model for a simple network of spiking neurons by Roberta Sirovich, Laura Sacerdote, Alessandro E. P. Villa

    Published 2013-09-01
    “…In this study we analyze the ISI sequence --thespike train-- generated by a simple network of neurons whose outputactivity is modeled by a jump-diffusion process. We prove that,when specific ranges of the involved parameters are chosen, it is possible toobserve multimodal ISI distributions which reveal that the modelednetwork fires with more than one single preferred time interval.Furthermore, the system exhibits resonance behavior, withmodulation of the spike timings by the noise intensity. …”
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  19. 519

    Characterization of a Bifacial Photovoltaic Panel Integrated with External Diffuse and Semimirror Type Reflectors by P. Ooshaksaraei, K. Sopian, R. Zulkifli, M. A. Alghoul, Saleem H. Zaidi

    Published 2013-01-01
    “…Output power enhancement of 20% and 15% from semimirror and diffuse reflectors, respectively, were observed. This loss from diffuse reflector is attributed to scattering of light beyond the rear surface capture cross-section of the bifacial solar panel.…”
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  20. 520

    Changes of Radial Diffusivity and Fractional Anisotopy in the Optic Nerve and Optic Radiation of Glaucoma Patients by Tobias Engelhorn, Georg Michelson, Simone Waerntges, Marlen Otto, Ahmed El-Rafei, Tobias Struffert, Arnd Doerfler

    Published 2012-01-01
    “…Purpose of this study was to evaluate with diffusion-tensor imaging (DTI) changes of radial diffusivity (RD) and fractional anisotropy (FA) in the optic nerve (ON) and optic radiation (OR) in glaucoma and to determine whether changes in RD and FA correlate with disease severity. …”
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