Showing 1,441 - 1,460 results of 1,626 for search 'frequency machine methods', query time: 0.10s Refine Results
  1. 1441

    Improvement of electrospark deposition technology of steel units for drilling rigs and mining equipment by D. N. Korotaev, E. V. Ivanova

    Published 2022-08-01
    “…Tribological tests were carried out on a 2070-СМТ-1 standard friction machine according to the “disk-shoe” scheme.Results. …”
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    Article
  2. 1442
  3. 1443

    Multiparametric MRI for the improved diagnostic accuracy of Alzheimer's disease and mild cognitive impairment: Research protocol of a case-control study design. by Albert Dayor Piersson, Buhari Ibrahim, Subapriya Suppiah, Mazlyfarina Mohamad, Hasyma Abu Hassan, Nur Farhayu Omar, Mohd Izuan Ibrahim, Ahmad Nazlim Yusoff, Normala Ibrahim, M Iqbal Saripan, Rizah Mazzuin Razali

    Published 2021-01-01
    “…Accurate imaging can decide on the frequency of follow-up at memory clinics and select classifiers for machine learning that may aid in the disease identification and prognostication. …”
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    Article
  4. 1444

    COVID-19 Public Health Communication on X (Formerly Twitter): Cross-Sectional Study of Message Type, Sentiment, and Source by Sana Parveen, Agustin Garcia Pereira, Nathaly Garzon-Orjuela, Patricia McHugh, Aswathi Surendran, Heike Vornhagen, Akke Vellinga

    Published 2025-03-01
    “…A combination of manual content analysis with abductive coding and machine learning models were used to categorize sentiment, user category and message type for every tweet. …”
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    Article
  5. 1445

    Association Between COVID-19 During Pregnancy and Preterm Birth by Trimester of Infection: Retrospective Cohort Study Using Large-Scale Social Media Data by Ari Z Klein, Shriya Kunatharaju, Su Golder, Lisa D Levine, Jane C Figueiredo, Graciela Gonzalez-Hernandez

    Published 2025-07-01
    “…ObjectiveThe objective of this study was to use self-reports in large-scale social media data to assess the association between the trimester of COVID-19 infection and preterm birth. MethodsIn this retrospective cohort study, we used natural language processing and machine learning, followed by manual validation, to identify self-reports of pregnancy on Twitter and to search these users’ collection of publicly available tweets for self-reports of COVID-19 infection during pregnancy and, subsequently, a preterm birth or term birth outcome. …”
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    Article
  6. 1446

    Comprehensive Analysis of the Biomechanical Research of Pelvic Organ Prolapse: A Scientometric Approach by Du H, Yang M, Qi X, Yang L, Wang Z, Yang T, Xu S, Fu L

    Published 2025-03-01
    “…Notably, the journal Int Urogynecol J has the highest publication rate and citation frequency, making a significant contribution and demonstrating considerable academic influence in the field. …”
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    Article
  7. 1447

    Postimplementation Evaluation in Assisted Living Facilities of an eHealth Medical Device Developed to Predict and Avoid Unplanned Hospitalizations: Pragmatic Trial by Jacques-Henri Veyron, François Deparis, Marie Noel Al Zayat, Joël Belmin, Charlotte Havreng-Théry

    Published 2024-12-01
    “…Due to their vulnerability, there is a higher frequency of unplanned hospitalizations in this population, leading to adverse events. …”
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  8. 1448

    GEM-CRAP: a fusion architecture for focal seizure detection by Jianwei Shi, Yuanyuan Zhang, Ziang Song, Hang Xu, Yanfeng Yang, Lei Jin, Hengxin Dong, Zhaoying Li, Penghu Wei, Yongzhi Shan, Guoguang Zhao

    Published 2025-04-01
    “…Abstract Background Identification of seizures is essential for the treatment of epilepsy. Current machine-learning and deep-learning models often perform well on public datasets when classifying generalized seizures with prominent features. …”
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    Article
  9. 1449

    Effect of Periodic Fluctuations of Cutting Mode Parameters on the Temperature of the Front Face of a Turning Tool by E. V. Fominov, V. E. Gvindjiliya, A. A. Marchenko, C. G. Shuchev

    Published 2025-03-01
    “…However, few works consider uncontrolled periodic disturbances, whose sources are spindle units and the supporting system of the machine. These disturbances also have a significant impact on the final quality indicators of the cutting process. …”
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    Article
  10. 1450

    Design and Development of Gorilla Optimized Deep Resilient Architecture for Prediction of Agro-Climatic Changes to Increase the Crop–Yield Production by Deepa Devarashetti, S. S. Aravinth

    Published 2025-06-01
    “…Climatic data and services are crucial for agriculturalists to withstand the rising frequency of strong meteorological conditions, which negatively impact crop yields. …”
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  11. 1451

    Enhanced SVM-based model for predicting cyberspace vulnerabilities: Analyzing the role of user group dynamics and capital influx. by Yicheng Long

    Published 2025-01-01
    “…To address the limited adaptability of traditional support vector machine (SVM) models in identifying nonlinear attacks, this study introduces a distribution-driven, dynamically adaptive kernel optimization approach. …”
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    Article
  12. 1452

    Evaluating landslide susceptibility: the impact of resolution and hybrid integration approaches by Xia Zhao, Wei Chen, Paraskevas Tsangaratos, Ioanna Ilia

    Published 2024-12-01
    “…The study reveals that finer spatial resolutions significantly enhance the accuracy of landslide predictions and that integrated models have superior performance over single models. The Frequency Ratio method identified elevation, slope, and hydrological factors as the key predictors concerning landslide occurrences. …”
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  13. 1453

    Design and Optimization of a Robust Wide‐Area Damping Controller for Mitigating Inter‐Area Oscillations in Wind‐Integrated Power Systems by Mehrdad Ahmadi Kamarposhti, Hassan Shokouhandeh, Sun‐Kyoung Kang, Ilhami Colak, El Manaa Barhoumi

    Published 2025-08-01
    “…ABSTRACT In power networks, low‐frequency oscillations—particularly inter‐area oscillations—pose a serious threat to system stability because of disruptions like short‐circuit faults and the increasing use of renewable energy sources like wind farms. …”
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  14. 1454

    Using Hybrid Feature and Classifier Fusion for an Asynchronous Brain–Computer Interface Framework Based on Steady-State Motion Visual Evoked Potentials by Bo Hu, Jun Xie, Huanqing Zhang, Junjie Liu, Hu Wang

    Published 2025-05-01
    “…This study proposes an asynchronous brain–computer interface (BCI) framework based on steady-state motion visual evoked potentials (SSMVEPs), designed to enhance the accuracy and robustness of control state recognition. The method integrates filter bank common spatial patterns (FBCSPs) and filter bank canonical correlation analysis (FBCCA) to extract complementary spatial and frequency domain features from EEG signals. …”
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  15. 1455

    Feasibility of Conoscopic Holography Measurement in the Stereolithography (SLA) Process with Alumina by Lorenzo Meana, Víctor Meana, Eduardo Cuesta, Pedro Fernández, Gonzalo Valiño, Braulio J. Álvarez

    Published 2025-05-01
    “…The investigation shows that conoscopic holography does not ensure an accurate measurement method for this additive process and ceramic material, making it impossible to achieve power and frequency settings that would allow signal-to-noise ratios above 50%.…”
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  16. 1456

    Heuristic Binary Search for Modulated Predictive Control by Rafael FIgueiredo, Igor Oliani, Angelo Lunardi, Alfeu J. Sguarezi Filho

    Published 2025-01-01
    “…This paper introduces the Heuristic Binary Search, an intelligent search algorithm that efficiently explores the solution space, accommodating arbitrary cost function constraints similar to Finite Control Set, while maintaining a fixed switching frequency. Applicable to various machine and inverter topologies, the proposed method is experimentally validated on a two-level voltage source inverter driving an induction motor using Predictive Torque Control and Deadbeat Robust Predictive Control. …”
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  17. 1457

    A discrete element simulation study of paver screed and hot mix asphalt interaction by Leandro Harries, Stefan Böhm, Jia Liu

    Published 2025-05-01
    “…This study addresses these challenges by employing a full-scale simulation using a calibrated Discrete Element Method (DEM) model to analyze HMA’s flow and pre-compaction behavior. …”
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  18. 1458

    A Dual Band Slotted Patch Antenna on Dielectric Material Substrate by M. Habib Ullah, M. T. Islam, M. R. Ahsan, J. S. Mandeep, N. Misran

    Published 2014-01-01
    “…A low profile, compact dual band slotted patch antenna has been designed using finite element method-based high frequency full-wave electromagnetic simulator. …”
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  19. 1459

    PROPER: Personality Recognition Based on Public Speaking Using Electroencephalography Recordings by Muhammad Majid, Amna Rauf Butt, Imran Fareed Nizami, Aamir Arsalan, Jihyoung Ryu

    Published 2025-01-01
    “…Five feature groups are extracted from the frequency bands of EEG data of each channel. Feature selection is applied to the extracted features via the wrapper method. …”
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  20. 1460

    Multi-modal denoised data-driven milling chatter detection using an optimized hybrid neural network architecture by Haining Gao, Haoyu Wang, Hongdan Shen, Shule Xing, Yong Yang, Yinlin Wang, Wenfu Liu, Lei Yu, Mazhar Ali, Imran Ali Khan

    Published 2025-01-01
    “…Multi-modal data features of different machining states are then obtained using time–frequency domain methods and Markov transition field methods. …”
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    Article