Showing 27,161 - 27,180 results of 28,739 for search '"computer"', query time: 0.12s Refine Results
  1. 27161

    Numerical analysis of transonic flow over the FFA-W3-211 wind turbine tip airfoil by M. C. Vitulano, M. C. Vitulano, D. De Tavernier, G. De Stefano, D. von Terzi

    Published 2025-01-01
    “…The results are obtained by means of the application of numerical tools: (1) XFOIL with the Prandtl–Glauert compressible correction and (2) computational fluid dynamic (CFD) simulations, where an unsteady Reynolds-averaged Navier–Stokes (URANS) model is used. …”
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  2. 27162

    Fitting and comparison of calcium-calmodulin kinetic schemes to a common data set using non-linear mixed effects modelling. by Domas Linkevicius, Angus Chadwick, Guido C Faas, Melanie I Stefan, David C Sterratt

    Published 2025-01-01
    “…Calmodulin is a calcium binding protein that is essential in calcium signalling in the brain. There are many computational models of calcium-calmodulin binding that capture various calmodulin features. …”
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  3. 27163

    Cache of cryptographic key based on query popularity by Wei JIN, Fenghua LI, Ziyan ZHOU, Xiyang SUN, Yunchuan GUO

    Published 2023-02-01
    “…In the current HDFS (Hadoop Distributed File System) key management system, the encryption zone keys are all loaded into the memory during startup of key service.With the increase of the key resource, the occupied memory space also grows, bringing the bottleneck of memory space and key indexing.There are three challenges induced: how to organize cached data and efficiently handle queries with missed keys, how to adjust key resources in the cache, and how to accurately predict the use of keys.In order to achieve fine-grained and efficient caching and improve the efficiency of key use, key caching optimization was considered from three aspects: key index data structure, key replacement algorithm, and key prefetching strategy.An architecture of key cache replacement module was designed, and then a key replacement algorithm based on the query frequency was set.Specifically, from the perspective of heat computing and key replacement, the potential influencing factors affecting the popularity of key cache were analyzed which considered the file system and user of key management system.Besides, the basic model of key usage popularity was constructed.The hash table and minheap linked list was combined to maintain the heat of the key in use, and the elimination algorithm was set based on heat identification.The key in the cache was dynamically updated, and key usage was adjusted by the time controller, so as to realize key replacement according to the key heat.For key prefetching, key usage rules were obtained through log mining and periodical usage analyzing of key provisioning policies, which considered business processes and the time period dimension of user accessing.Experimental results show that the proposed key replacement algorithm can effectively improve the hit rate of cache queries, reduce memory usage, and ameliorate the impact of key file I/O interaction on query performance.…”
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  4. 27164

    Isolated Superior Mesenteric Vein Tumor Thrombus in a Patient with Gastric Cancer by Barış Özcan, Metin Çevener, Ayşegül Kargı, Mustafa Özdoğan, Alihan Gürkan

    Published 2018-01-01
    “…A suspected tumor thrombus with contrast enhancement that completely obstructed the SMV was detected on triphasic abdominal computed tomography. Decision for surgery was made due to gastric tumor obstruction. …”
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  5. 27165

    Selection of Sustainable Building Material Using Multicriteria Decision-Making Model: A Case of Masonry Work in Lideta Subcity, Addis Ababa by Diriba Tegegne, Mebratu Abera, Esayas Alemayehu

    Published 2023-01-01
    “…In this method, pairwise comparisons were made among the criteria and subcriteria so that the weights of the criteria or subcriteria/or alternative on the bases of the indicated criteria were computed. Then, prioritization was made on the bases of the weight of the criteria. …”
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  6. 27166

    Identification of Psychological Crisis Signals of College Students Based on the Dufferin Equation by Jianping Zhao, Haitao Song

    Published 2021-01-01
    “…The geometric features of the phase trajectory are adopted as the basis for judging the system state, which greatly reduces the computational effort. Based on defining the conceptual connotation of college students’ psychological crisis behavior system, the vulnerability of college students’ psychological crisis behavior system is interpreted from the perspective of system self-organization theory, and the vulnerability of college students’ psychological crisis behavior is mainly expressed in latent and manifest states, and its vulnerability transformation is a self-organization process. …”
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  7. 27167

    Signal Processing-Free Intelligent Model for Power Quality Disturbances Identification by Mohammed F. Al-Mashdali, Asif Islam, Abdulbasit Hassan, Md Shafiullah, Mujahed Al-Dhaifallah, Khalid Al Fuwail

    Published 2025-01-01
    “…Traditional methods for PQD classification use complicated feature extraction techniques, which can be computationally expensive and lack scalability. This research proposes applying basic convolutional neural network (CNN) models for automated PQD detection and categorization as a prospective solution to these issues. …”
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  8. 27168

    A Rare Case of Paediatric Traumatic Intraperitoneal Urinary Bladder Rupture by LS Prabhanjan, Mangesh Hivre, Dilip Gupta, Aarhata Pramod Singh

    Published 2025-01-01
    “…Insertion of a Foley catheter revealed frank haematuria without urine output, and a Contrast-enhanced Computed Tomography (CECT) scan of the abdomen and pelvis showed gross haemoperitoneum. …”
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  9. 27169

    THE USE OF ARTIFICIAL INTELLIGENCE IN THE THERAPEUTIC MANAGEMENT OF PAPILLARY THYROID MICROCARCINOMA: A RANDOMIZED CONTROLLED TRIAL PROTOCOL by Ramona Elena Teiu, Tudor Florin Ursuleanu, Hlescu Cristian Stefan, Roxana Grigorovici, Andreea Roxana Luca, Maria Paula Comanescu, Alina Ionela Calin, Alexandru Grigorovici

    Published 2024-12-01
    “…I aim to use AI models to obtain correct and favorable results for the diagnosis and prognosis of papillary thyroid cancer by conducting a clinical trial, in which we will use the diagnostic method optimized by artificial intelligence (AI) algorithms.The use of AI will avoid errors and increase performance in the interpretation of the doctor’s computed tomography (CT) scan and consequently, improve treatment planning. …”
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  10. 27170

    Resistive switching mechanisms in BiFeO3 devices with YBCO and Ag as top electrodes by Santiago Ceballos Medina, Lorena Marín Mercado, Alexander Cardona-Rodríguez, Mario Fernando Quiñonez Penagos, César Magén, Luis Alfredo Rodríguez, Juan Gabriel Ramírez

    Published 2025-02-01
    “…The resistive switching (RS) effect in ferroelectric oxides continues to attract significant attention due to its potential applications in nonvolatile memory and neuromorphic computing devices. In this study, we investigate the RS properties of BiFeO3/YBa2Cu3O7−d (BFO/YBCO) bilayers grown on LSAT substrates, comparing two different top-electrode materials: YBCO and Ag. …”
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  11. 27171

    Towards New Scaffolds for Antimicrobial Activity—In Silico/In Vitro Workflow Introducing New Lead Compounds by Maria Mangana, George Lambrinidis, Ioannis K. Kostakis, Ioanna Kalpaktsi, Marina Sagnou, Chrysoula Nicolaou, Emmanuel Mikros, Stylianos Chatzipanagiotou, Anastasios Ioannidis

    Published 2024-12-01
    “…<b>Background/Objectives</b>: The rapid evolution of bacterial resistance and the high cost of drug development have attributed greatly to the dearth in drug design. Computational approaches and natural product exploitation offer potential solutions to accelerate drug discovery. …”
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  12. 27172

    Hybrid-Hierarchical Synchronization for Resilient Large-Scale SDN Architectures by Alessandro Pacini, Davide Scano, Andrea Sgambelluri, Luca Valcarenghi, Alessio Giorgetti

    Published 2025-01-01
    “…Parent controller computational resources can be dedicated to cross-domain decision making, exploiting network views provided by its children. …”
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  13. 27173

    Numerical Study on Combustion Behavior of Tuyere and Raceway in Blast Furnace with Oxygen-Rich Blast and Hydrogen Injection by Ruimeng Shi, Yue Pei, Mengmeng Ren, Zheng Xue, Xinqi Li, Heping Liu

    Published 2024-12-01
    “…A three-dimensional computational fluid dynamic (CFD) model is developed to investigate the effect of hydrogen injection rate and blast oxygen enrichment rate on the tuyere, raceway, and surrounding coke bed behaviors. …”
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  14. 27174

    Neutrino-dominated Relativistic Viscous Accretion Flows around Rotating Black Holes with Shocks by Amit Kumar, Sayan Chakrabarti, Santabrata Das

    Published 2025-01-01
    “…Utilizing these shock-induced NDAF solutions, we compute the neutrino luminosity ( L _ν ) and neutrino annihilation luminosity ( ${L}_{\nu \bar{\nu }}$ ) across a wide range of model parameters. …”
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  15. 27175

    Oxygenation and function of endocrine bioartificial pancreatic tissue constructs under flow for preclinical optimization by Brenden N Moeun, Florent Lemaire, Alexandra M Smink, Hamid Ebrahimi Orimi, Richard L Leask, Paul de Vos, Corinne A Hoesli

    Published 2025-01-01
    “…Oxygen concentration profiles modeled computationally were analogous to viability gradients observed experimentally through live/dead endpoint measurements and in case I, time-lapse fluorescence imaging was used to monitor the viability of GFP-expressing cells in real time. …”
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  16. 27176

    Comparison of Low-Pass Filters for SPECT Imaging by Inayatullah S. Sayed, Siti S. Ismail

    Published 2020-01-01
    “…In single photon emission computed tomography (SPECT) imaging, the choice of a suitable filter and its parameters for noise reduction purposes is a big challenge. …”
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  17. 27177

    Transcatheter mitral valve replacement to treat rheumatic mitral stenosis: a case series by Ping Jin, Hong Guo, Yu Mao, Mengen Zhai, Yang Liu, Jian Yang

    Published 2024-12-01
    “…All patients underwent computed tomography and echocardiography before having the procedure. …”
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  18. 27178

    Robust Control of Underwater Vehicle-Manipulator System Using Grey Wolf Optimizer-Based Nonlinear Disturbance Observer and H-Infinity Controller by Yong Dai, Defeng Wu, Shuanghe Yu, Yan Yan

    Published 2020-01-01
    “…For overcoming the unmodeled uncertainties, external disturbances, and constraints of control inputs in the operation of UVMS, a modified constrained H∞ controller with a basic computed-torque controller (CTC) and a new designed nonlinear disturbance observer (NDO) are proposed. …”
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  19. 27179

    Simulating record-shattering cold winters of the beginning of the 21st century in France by C. Cadiou, P. Yiou

    Published 2025-01-01
    “…Large ensembles of simulations allow us to better analyse the mechanisms and characteristics of such events but can require significant computational resources. Rather than simulating very large ensembles of normal climate trajectories, rare-event algorithms allow the sampling of the tail of distributions more efficiently. …”
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  20. 27180

    Numerical measures of the degree of non-proportionality of multiaxial fatigue loadings by A. Bolchoun, H. Kaufmann, C. M. Sonsino

    Published 2015-07-01
    “…Most stress-based hypotheses will compute a longer fatigue life under non-proportional loading conditions. …”
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