Showing 581 - 600 results of 2,351 for search 'diffusivity (efficient OR efficiency)', query time: 0.17s Refine Results
  1. 581

    Innovative multi-class segmentation for brain tumor MRI using noise diffusion probability models and enhancing tumor boundary recognition by Zengxin Liu, Caiwen Ma, Wenji She, Meilin Xie

    Published 2024-11-01
    “…Comparative analyses underscore its superiority over existing methods, emphasizing efficiency and simplicity in clinical implementation. …”
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    Article
  2. 582

    Mechanistic Studies of H<sub>2</sub> Adsorption and Diffusion in Low-Rank Coals: A Discussion on Geologic Hydrogen Storage by Xiaoxu Gao, Sixin Fu, Jinzhang Jia, Hailong Song, Hao Tian

    Published 2025-04-01
    “…An in-depth investigation of the adsorption and diffusion mechanism of hydrogen in low-rank coals is of great significance for optimizing the technical path of geological hydrogen storage and improving the efficiency of hydrogen storage. …”
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    Article
  3. 583

    Design of 2D-Scanning Bifocal Metalens Antenna Using ControlNet-Enabled Stable Diffusion Deep Generative Model by Cedric W. L. Lee, Peng Khiang Tan, Theng Huat Gan

    Published 2025-01-01
    “…This is accomplished while upholding a measured high peak aperture efficiency of 44.8% and a 3-dB gain bandwidth of 16.5%. …”
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  4. 584

    Enhancing image security via chaotic maps, Fibonacci, Tribonacci transformations, and DWT diffusion: a robust data encryption approach by Mohammad Mazyad Hazzazi, Mujeeb Ur Rehman, Arslan Shafique, Amer Aljaedi, Zaid Bassfar, Aminu Bello Usman

    Published 2024-05-01
    “…Balancing these two aspects poses a challenge, aiming to achieve efficient encryption without compromising security. …”
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    Article
  5. 585

    Machine Learning Prediction of CO<sub>2</sub> Diffusion in Brine: Model Development and Salinity Influence Under Reservoir Conditions by Qaiser Khan, Peyman Pourafshary, Fahimeh Hadavimoghaddam, Reza Khoramian

    Published 2025-07-01
    “…The diffusion coefficient (DC) of CO<sub>2</sub> in brine is a key parameter in geological carbon sequestration and CO<sub>2</sub>-Enhanced Oil Recovery (EOR), as it governs mass transfer efficiency and storage capacity. …”
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    Article
  6. 586

    Optimization using response surface methodology for Eyring-powell fluid flow with Cattaneo-Christov heat flux and cross diffusion effects by Pradeep Kumar, Vidhya K G, Felicita Almeida, Qasem Al-Mdallal

    Published 2025-01-01
    “…The optimization of heat transfer in engineering applications has significant implications for product performance and efficiency. This study investigates the flow and heat transfer characteristics of Eyring-Powell fluid over a curved sheet, incorporating complex phenomena such as magnetic dipoles, Cattaneo-Christov heat flux, and cross-diffusion effects. …”
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  7. 587

    Better Cone-Beam CT Artifact Correction via Spatial and Channel Reconstruction Convolution Based on Unsupervised Adversarial Diffusion Models by Guoya Dong, Yutong He, Xuan Liu, Jingjing Dai, Yaoqin Xie, Xiaokun Liang

    Published 2025-01-01
    “…We propose a new unsupervised CBCT image artifact correction algorithm, named Spatial Convolution Diffusion (ScDiff), based on a conditional diffusion model, which combines the unsupervised learning ability of generative adaptive networks (GAN) with the stable training characteristics of diffusion models. …”
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  8. 588
  9. 589
  10. 590

    Nitric Oxide‐Releasing Nanoscale Metal‐Organic Layer Overcomes Hypoxia and Reactive Oxygen Species Diffusion Barriers to Enhance Cancer Radiotherapy by Yuxuan Xiong, Jinhong Li, Xiaomin Jiang, Wenyao Zhen, Xin Ma, Wenbin Lin

    Published 2025-02-01
    “…The released NO rapidly reacts with O2−. to form long‐lived and highly cytotoxic peroxynitrite which diffuses freely to the cell nucleus and efficiently causes DNA double‐strand breaks. …”
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    Article
  11. 591

    Neural SHAKE: geometric constraints in neural differential equations by Justin S. Diamond, Markus A. Lill

    Published 2025-08-01
    “…This technique generates lower-energy molecular conformations, enables more efficient subspace exploration, and formally subsumes classifier-guidance-type methods by treating geometric constraints as strict algebraic conditions within the diffusion process. …”
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    Article
  12. 592

    Enhancement of Image Reconstruction in Orthogonal Frequency-Division Multiplexing (OFDM)-Based Communication System Using Conditional Diffusion Model of Generative AI by Soohyun Kim, Jinwook Kim, Youngghyu Sun, Joonho Seon, Seongwoo Lee, Byungsun Hwang, Jeongho Kim, Kyounghun Kim, Jinyoung Kim

    Published 2025-03-01
    “…The orthogonal frequency-division multiplexing (OFDM) transmission technique is well known to be efficient for data transmission but is susceptible to performance degradation due to factors such as high-order modulation schemes, multipath fading, and noise. …”
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  13. 593

    Numerical Study of Multi-Term Time-Fractional Sub-Diffusion Equation Using Hybrid L1 Scheme with Quintic Hermite Splines by Priyanka Priyanka, Shelly Arora, Saroj Sahani, Sharandeep Singh

    Published 2024-11-01
    “…Anomalous diffusion of particles has been described by the time-fractional reaction–diffusion equation. …”
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  14. 594

    Novel gas-diffusion microextraction followed by gas chromatography coupled to tandem mass spectrometry methodology for the determination of fragrance allergens in cosmetic products by Ana Castiñeira-Landeira, Angel Gomez-Feas, Antonia M. Carro, Thierry Dagnac, Paulo J. Almeida, Maria Llompart

    Published 2025-05-01
    “…An efficient sample preparation method using gas-diffusion microextraction (GDME) followed by gas chromatography coupled to tandem mass spectrometry (GC-MS/MS) is proposed for the first time to determine fragrance allergens in both aqueous and alcohol-based cosmetic products. …”
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  15. 595

    A Detailed Numerical Study of NOx Kinetics in Counterflow Methane Diffusion Flames: Effects of Fuel-Side versus Oxidizer-Side Dilution by Huanhuan Xu, Fengshan Liu, Zhiqiang Wang, Xiaohan Ren, Juan Chen, Qiang Li, Zilin Zhu

    Published 2021-01-01
    “…Dilution combustion has been widely utilized due to various merits, such as enhanced efficiency, fewer pollutants emissions, and even a promising future in alleviating global warming. …”
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    Article
  16. 596

    Mathematical Theory of Social Conformity I: Belief Dynamics, Propaganda Limits, and Learning Times in Networked Societies by Dimitri Volchenkov, Vakhtang Putkaradze

    Published 2025-05-01
    “…Our results yield closed-form theorems on propaganda efficiency, saturation depth in hierarchical trees, and structural limits of ideological manipulation. …”
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  17. 597

    Enhanced Numerical Solutions for Fractional PDEs Using Monte Carlo PINNs Coupled with Cuckoo Search Optimization by Tauqeer Ahmad, Muhammad Sulaiman, David Bassir, Fahad Sameer Alshammari, Ghaylen Laouini

    Published 2025-04-01
    “…There is a further enhancement in the application of quasi-Monte Carlo assessment that comes with high efficiency and computational solutions to estimates of fractional derivatives. …”
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  18. 598

    Advanced imaging of gas diffusion layers: A comparison between focused ion beam scanning electron microscopy and X-ray computed tomography by Hossein Pourrahmani, Thomas B. Ferriday, Raha Razmara, Hossein Madi, Jan Van herle

    Published 2025-12-01
    “…Proton exchange membrane fuel cells are known to be the best candidates for low-temperature and portable operations, such as hydrogen cars. The efficiency and longevity of these fuel cells can be feasible through detailed microstructural analysis. …”
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  19. 599

    Einstein frequency of individual chalcogen bonds in Cu(In,Ga)Se2 and Cu(In,Ga)S2: Indicator of diffusion property of Cu, In, and Ga atoms by Kosuke Beppu, Fumiaki Amano, Seiji Yamazoe, Takahiro Wada

    Published 2025-04-01
    “…Elucidating the characteristics of the Cu-Se, In-Se, and Ga-Se bonds in chalcopyrite-type Cu(In,Ga)Se2-based semiconductors can aid the design and fabrication of highly efficient thin-film photovoltaic devices. In this study, we used extended X-ray absorption fine structure (EXAFS) analyses to evaluate the characteristics of chemical bonds in Cu(In,Ga)Se2 and Cu(In,Ga)S2 powder samples at low temperatures (10–300 K). …”
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  20. 600

    The average relative dose intensity of R‐CHOP is an independent factor determining favorable overall survival in diffuse large B‐cell lymphoma patients by Monika Długosz‐Danecka, Sebastian Szmit, Tomasz Ogórka, Aleksander B. Skotnicki, Wojciech Jurczak

    Published 2019-03-01
    “…Abstract The prognosis of diffuse large B‐cell lymphoma (DLBCL) patients depends on lymphoma‐ and patient‐related risk factors and is best estimated by the international prognostic index (IPI). …”
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