Showing 27,041 - 27,060 results of 28,739 for search '"computer"', query time: 0.13s Refine Results
  1. 27041

    Conformational landscape of soluble α-klotho revealed by cryogenic electron microscopy by Nicholas J. Schnicker, Zhen Xu, Mohammad Amir, Lokesh Gakhar, Chou-Long Huang

    Published 2025-01-01
    “…Recent studies revealed that FGF23 contains two KLA-binding sites. Our computational studies revealed that each site binds separate KLA in the dimer. …”
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  2. 27042

    A Study of Causes and Clinicopathological Changes of Patients Presented with Hoarseness of Voice in the ENT Department of Hilla Teaching General Hospital, Babylon, Iraq by Maytham Lafta Kreem Witwit

    Published 2024-10-01
    “…Radiological examination by plain X-ray of the neck and chest, computed tomography scans of the head, neck, and chest, and a direct laryngoscopy exam. …”
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  3. 27043

    Qualitative Analysis of a COVID-19 Mathematical Model with a Discrete Time Delay by Abraham J. Arenas, Gilberto González-Parra, Miguel Saenz Saenz

    Published 2024-12-01
    “…We study the qualitative dynamics of the model by performing global and local stability analysis. We compute the basic reproduction number <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msubsup><mi mathvariant="script">R</mi><mn>0</mn><mi>d</mi></msubsup></semantics></math></inline-formula>, which depends on the time delay and determines the stability of the two steady states. …”
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  4. 27044

    Subseasonal forecasts of heat waves in West African cities by C. G. Ngoungue Langue, C. G. Ngoungue Langue, C. Lavaysse, C. Lavaysse, C. Flamant

    Published 2025-01-01
    “…The performance of the forecast models in predicting heat waves is assessed through the computation of categorical metrics such as the hit rate, the Gilbert skill score and the false alarm ratio. …”
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  5. 27045

    OA-MEN: a fusion deep learning approach for enhanced accuracy in knee osteoarthritis detection and classification using X-Ray imaging by Xiaolu Ren, Xiaolu Ren, Lingxuan Hou, Shan Liu, Peng Wu, Siming Liang, Haitian Fu, Chengquan Li, Ting Li, Yongjing Cheng

    Published 2025-01-01
    “…The future goal is to seamlessly integrate deep learning and advanced computational techniques with the expertise of medical professionals.…”
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  6. 27046

    Robust reinforcement learning algorithm based on pigeon-inspired optimization by Mingying ZHANG, Bing HUA, Yuguang ZHANG, Haidong LI, Mohong ZHENG

    Published 2022-10-01
    “…Reinforcement learning(RL) is an artificial intelligence algorithm with the advantages of clear calculation logic and easy expansion of the model.Through interacting with the environment and maximizing value functions on the premise of obtaining little or no prior information, RL can optimize the performance of strategies and effectively reduce the complexity caused by physical models .The RL algorithm based on strategy gradient has been successfully applied in many fields such as intelligent image recognition, robot control and path planning for automatic driving.However, the highly sampling-dependent characteristics of RL determine that the training process needs a large number of samples to converge, and the accuracy of decision making is easily affected by slight interference that does not match with the simulation environment.Especially when RL is applied to the control field, it is difficult to prove the stability of the algorithm because the convergence of the algorithm cannot be guaranteed.Considering that swarm intelligence algorithm can solve complex problems through group cooperation and has the characteristics of self-organization and strong stability, it is an effective way to be used for improving the stability of RL model.The pigeon-inspired optimization algorithm in swarm intelligence was combined to improve RL based on strategy gradient.A RL algorithm based on pigeon-inspired optimization was proposed to solve the strategy gradient in order to maximize long-term future rewards.Adaptive function of pigeon-inspired optimization algorithm and RL were combined to estimate the advantages and disadvantages of strategies, avoid solving into an infinite loop, and improve the stability of the algorithm.A nonlinear two-wheel inverted pendulum robot control system was selected for simulation verification.The simulation results show that the RL algorithm based on pigeon-inspired optimization can improve the robustness of the system, reduce the computational cost, and reduce the algorithm’s dependence on the sample database.…”
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  7. 27047

    The Relevance of the Virchow Node and Virchow Triad in Renal Cancer Diagnosis by Luiza-Roxana Dorobantu-Lungu, Viviana Dinca, Andrei Gegiu, Dan Spataru, Andreea Toma, Luminita Welt, Mihaela Florentina Badea, Constantin Caruntu, Cristian Scheau, Ilinca Savulescu-Fiedler

    Published 2025-01-01
    “…<b>Results:</b> Following computed tomography, magnetic resonance imaging, PET-CT, and histopathological and immunohistochemical examinations, the patient was diagnosed with renal carcinoma with Xp11.2 translocation and TFE3 gene fusion. …”
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  8. 27048

    In-silico screening and analysis of missense SNPs in human CYP3A4/5 affecting drug-enzyme interactions of FDA-approved COVID-19 antiviral drugs by Amro A. Abdelazim, Mohamad Maged, Ahmed I. Abdelmaksoud, Sameh E. Hassanein

    Published 2025-01-01
    “…In this work, we computationally investigated antiviral-enzyme interactions of CYP3A4/5 genetic variants. …”
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  9. 27049

    Numerical investigation of the influence of pulse frequency on the weld pool size in pulsed current TIG welding by Shahid Parvez, Magdy El Rayes, Essam Al-Bahkali, Khalid Alqosaibi

    Published 2025-01-01
    “…A numerical model was developed to compute heat and current fluxes on the workpiece surface. …”
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  10. 27050

    CTA Study of Ruptured Aneurysms of the Posterior Communicating Artery by Zibo Zhou, Jinlu Yu

    Published 2022-01-01
    “…Only a few reported studies have used computed tomography angiography (CTA) to image ruptured aneurysms at the junction of the internal carotid artery (ICA) and posterior communicating artery (PcomA) in the context of the adjacent arteries. …”
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  11. 27051

    Identifying Critical Input Parameters for Improving Drag‐Based CME Arrival Time Predictions by C. Kay, M. L. Mays, C. Verbeke

    Published 2020-01-01
    “…Drag‐based models typically are much more computationally efficient than magnetohydrodynamic models, allowing for ensemble modeling. …”
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  12. 27052
  13. 27053

    Metamorphosis of the Identity of the Human Сompleted: from Digital Donor to Digital Centaur by G.U. Soldatova, S.V. Chigarkova, S.N. Ilyukhina

    Published 2025-01-01
    “…</strong>The Fourth Industrial Revolution is gradually bringing us to the frontier of the steady transformation of the human being into a being increasingly connected to technology. Smartphones, computers, the Internet of Things, and AI assistants, which form an integral technosystem that mediates the everyday life of man, are complex cultural tools that become his complements and extensions &ndash; part of the personality. …”
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  14. 27054

    Three-Rooted Permanent Mandibular First Molars: A Meta-Analysis of Prevalence by Nyan M. Aung, Kyaw K. Myint

    Published 2022-01-01
    “…In vivo epidemiological studies undergone with Cone Beam Computed Tomography (CBCT) were eligible. The proportions of the prevalence of three-rooted permanent mandibular first molars were presented in the forest plots by random effect model. …”
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  15. 27055

    The Application of Advanced Bone Imaging Technologies in Sports Medicine by Samuel S. Tadros, Scott Epsley, Sameer Mehta, Brandon C. Jones, Hiran I. Rajapakse, Rashad Madi, Austin Alecxih, Daniel Kargilis, Chamith S. Rajapakse

    Published 2023-01-01
    “…Among these imaging modalities is high-resolution peripheral quantitative computed tomography (HR-pQCT) which is a promising technology that has been developed to examine the bone microarchitecture in both cortical and trabecular bone at peripheral anatomical sites. …”
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  16. 27056

    Effective breastfeeding technique and associated factors among lactating mothers in Gidan District, North-East, Ethiopia: a community-based cross-sectional study by Eskedar Getie Mekonnen, Desale Bihonegn Asmamaw, Yohannes Ayanaw Habitu, Wubshet Debebe Negash, Dawit Zenamarkos Desta

    Published 2022-07-01
    “…Individual scores of three variables about breast feeding, namely positioning, attachment and suckling, were computed to generate the outcome variable, that is, breastfeeding technique. …”
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  17. 27057

    Utilizing MRAMs With Low Resistance and Limited Dynamic Range for Efficient MAC Accelerator by Sateesh, Kaustubh Chakarwar, Shubham Sahay

    Published 2024-01-01
    “…The recent advancements in data mining, machine learning algorithms and cognitive systems have necessitated the development of neuromorphic processing engines which may enable resource and computationally intensive applications on the internet-of-Things (IoT) edge devices with unprecedented energy efficiency. …”
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  18. 27058

    Haralick Texture Analysis for Differentiating Suspicious Prostate Lesions from Normal Tissue in Low-Field MRI by Dang Bich Thuy Le, Ram Narayanan, Meredith Sadinski, Aleksandar Nacev, Yuling Yan, Srirama S. Venkataraman

    Published 2025-01-01
    “…Two extraction methods were used: the direct computation of texture measures within the ROIs and a sliding window technique generating texture maps across the prostate from which average values were derived. …”
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  19. 27059

    Prediction of Pt, Ir, Ru, and Rh complexes light absorption in the therapeutic window for phototherapy using machine learning by V. Vigna, T. F. G. G. Cova, A. A. C. C. Pais, E. Sicilia

    Published 2025-01-01
    “…Traditional prediction methods for these light absorption properties, including Time-Dependent Density Functional Theory (TDDFT), are often computationally intensive and time-consuming. In this study, we explore a machine learning (ML) approach to predict the light absorption in the region of the therapeutic window of platinum, iridium, ruthenium, and rhodium complexes, aiming at streamlining the screening of potential photoactivatable prodrugs. …”
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  20. 27060

    The Influence of Ventilation Arrangement on the Mechanism of Dust Distribution in Woxi Pithead by Zhiyong Zhou, Pei Hu, Chongchong Qi, Tianpei Niu, Ming Li, Long Tian

    Published 2018-01-01
    “…Based on the theory of gas-solid two-phase flow, the program ANSYS Fluent was utilized, and the three-dimensional airflow migration and dust diffusion numerical models were simulated. The established computational fluid dynamics (CFD) models were validated using the airflow velocity data and the dust concentration data monitored at different positions from the operating coal mine. …”
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