Search alternatives:
variational » variations (Expand Search)
method » methods (Expand Search)
Showing 2,321 - 2,340 results of 3,710 for search 'Variational integration method', query time: 0.18s Refine Results
  1. 2321

    Forecasting Significant Wave Height Intervals Along China’s Coast Based on Hybrid Modal Decomposition and CNN-BiLSTM by Kairong Xie, Tong Zhang

    Published 2025-06-01
    “…This study proposes a deep learning method based on buoy datasets collected from four research locations in China’s offshore waters over three years (2021–2023, 3-hourly). …”
    Get full text
    Article
  2. 2322

    Chemometric analysis of ethoxylated polymer products using extracted MALDI-TOF-MS peak distribution features. by Elizabeth Dickinson, Richard N Cawthorne, Peter Dodds, Graham M Atkinson, Pablo F García Thomas, Lucy Jones, Molly Crosbie, Janet Cook, Julie Wilson

    Published 2025-01-01
    “…Crucially, we weight the extracted features, so that features from a distribution with a high ratio to the main distribution are given more importance ('ratio-scaled'). We exemplify the method by characterizing the structural variation between types of compositionally diverse Polysorbate 80, PEG castor oil and Oleth-20, and compare the chemometric analysis using our extracted features with analysis of the full spectra. …”
    Get full text
    Article
  3. 2323

    Keystone perforator island flap: a clinical summary of 28 melanoma cases by Felix Behan

    Published 2018-03-01
    “…**Background**: The keystone perforator island flap (KPIF) and its design variations developed as a clinical necessity for reconstructing large surgical defects. …”
    Get full text
    Article
  4. 2324

    Experimental measurement and computational fluid dynamics simulation of mixing in a stirred tank: a review by A. Ochieng, M. Onyango, K. Kiriamiti

    Published 2009-11-01
    “…Studies have shown that the LDV technique can provide very detailed information on the spatio-temporal variations in a tank, but the method is costly. For this reason, CFD simulation techniques may be employed to provide such data at a lower cost. …”
    Get full text
    Article
  5. 2325

    Study on the effect of humidity on coal mine dust concentration monitoring and its compensation strategy by ZHANG Anran

    Published 2025-04-01
    “…A humidity compensation experimental model was developed and integrated into a light-scattering dust concentration monitoring unit with multiple angles. …”
    Get full text
    Article
  6. 2326

    GENETIC ALGORITHM-PID CONTROLLER FOR MODEL ORDER REDUCTION PANTOGRAPHCATENARY SYSTEM by Nasir A. Al-Awad, Izz K. Abboud, Muaayed F. Al-Rawi

    Published 2021-06-01
    “…Then, the usage of Genetic Algorithm with Proportional-Integral-derivative (G.A-PID) as proposed controller appeared optimum response where, the contacts force consequences to be virtually equal to its steady reference. …”
    Get full text
    Article
  7. 2327

    Introducing multiple factor analysis (MFA) as a diagnostic taxonomic tool complementing principal component analysis (PCA) by L. Lee Grismer

    Published 2025-08-01
    “…If more than one data type is used in a PCA, the output may be biased by the data type with the largest amount of variation or statistical variance. Also discussed is the necessity of using a non-parametric permutation of analysis of variance (PERMANOVA)—or a similar analysis—as a robust, statistically defensible method for assessing the significance of OTU plot positions as opposed to subjective visual interpretations.…”
    Get full text
    Article
  8. 2328

    Leveraging Topic Features in Prediction of Social Network Community Evolutions by Rahman Nahi Abid, Hassan Naderi

    Published 2025-01-01
    “…In this study, we developed the Identification of Community Evolution by Mapping “ICEM” method by integrating topic modeling with network structure analysis to track community evolution. …”
    Get full text
    Article
  9. 2329

    Spatiotemporal Fusion of Multi-Temporal MODIS and Landsat-8/9 Imagery for Enhanced Daily 30 m NDVI Reconstruction: A Case Study of the Shiyang River Basin Cropland (2022) by Peiwen Mu, Fei Tian

    Published 2025-04-01
    “…This study introduces an NDVI reconstruction method combining Savitzky–Golay filtering with the variation-based spatiotemporal data fusion model to produce a high-resolution daily NDVI dataset for SRB cropland in 2022, with a 30 m spatial resolution. …”
    Get full text
    Article
  10. 2330

    Adaptive Modulation Tracking for High-Precision Time-Delay Estimation in Multipath HF Channels by Qiwei Ji, Huabing Wu

    Published 2025-07-01
    “…Simulation results based on the Watterson channel model demonstrate that MATE achieves an average time-delay estimation error of approximately 0.01 ms with a standard deviation of approximately 0.01 ms, representing a 94.12% reduction in mean error and a 96.43% reduction in standard deviation compared to the traditional Generalized Cross-Correlation (GCC) method. Validation with actual measurement data further confirms the robustness of MATE against channel variations. …”
    Get full text
    Article
  11. 2331

    APM-SLAM: Visual localization for fixed routes with tightly coupled a priori map by Linsong Xue, Qi Luo, Kai Zhang

    Published 2025-06-01
    “…The localization process integrates coarse-to-fine matching with Maximum A Posteriori (MAP) Probability estimation to refine pose accuracy. …”
    Get full text
    Article
  12. 2332

    Polynomial Modeling of Noise Figure in Erbium-Doped Fiber Amplifiers by Rocco D’Ingillo, Alberto Castronovo, Stefano Straullu, Vittorio Curri

    Published 2025-03-01
    “…The model leverages Generalized Least Squares (GLS) regression to fit a multivariate polynomial function to measured EDFA noise figure data, ensuring robustness against measurement noise and dataset variations. The proposed method is benchmarked against experimental measurements from multiple EDFAs, achieving prediction errors that are within the measurement uncertainty of Optical Spectrum Analyzers (OSAs). …”
    Get full text
    Article
  13. 2333

    Assessment of livelihood vulnerability to climate change among tribal communities in Chhindwara and Dhar district, Central India by Amit Kumar, T. Mohanasundari

    Published 2025-03-01
    “…The MLR analysis highlights the significant influence of key determinants, such as primary income source, extreme weather events, access to safe drinking water, and livelihood strategies, on vulnerability, emphasising the importance of addressing socioeconomic disparities and enhancing adaptive capacity. Integrating primary and secondary data enables an inclusive investigation of vulnerability determinants and geographical variations within the study area. …”
    Get full text
    Article
  14. 2334

    An EMG-Based GRU Model for Estimating Foot Pressure to Support Active Ankle Orthosis Development by Praveen Nuwantha Gunaratne, Hiroki Tamura

    Published 2025-06-01
    “…EMG signals were collected from four key ankle muscles, and plantar pressures were recorded using a customized sandal-integrated force-sensitive resistor (FSR) system. The data underwent comprehensive preprocessing and segmentation using a sliding window method. …”
    Get full text
    Article
  15. 2335

    Model‐Free Deep Reinforcement Learning with Multiple Line‐of‐Sight Guidance Laws for Autonomous Underwater Vehicles Full‐Attitude and Velocity Control by Chengren Yuan, Changgeng Shuai, Zhanshuo Zhang, Jianguo Ma, Yuan Fang, YuChen Sun

    Published 2025-08-01
    “…The attitude control experiments on the X‐AUV prototype validate that A‐TD3's control performance with PID method.…”
    Get full text
    Article
  16. 2336

    Evaluation and downstream effects of household and industrial effluents discharge on some physicochemical parameters and surface Water Quality Index of River Mahanadi, Odisha, Indi... by Abhijeet Das

    Published 2025-04-01
    “…The R2 value of 0.78–0.99 in calibration and 0.79–0.97 in validation model, indicated by PLSR method, which indicates that the water parameters as well as indexing WQ methods explains around more than 90% of the variability. …”
    Get full text
    Article
  17. 2337

    Development of a Digital Hologram Map Using Bathymetric Data by Jumamurod Farhod Ugli Aralov, Oybek Mirzaevich Narzulloev, Leehwan Hwang, Philippe Gentet, Seunghyun Lee

    Published 2025-01-01
    “…Holographic representations were generated utilizing the Digital Holographic Stereogram Printing method, which produced two holograms representing the underwater morphology of Monterey Canyon and its terrestrial features. …”
    Get full text
    Article
  18. 2338

    Study on the Thermal Performance of Inner and Outer Wall Surfaces Based on FDM-ATSCM by Li Honglian, Cao Wenhui, Jiang Suwan, Sun Yinghao, Zhu Xinrong

    Published 2025-01-01
    “…Accordingly, this study proposes the FDM-ATSCM model to enhance the numerical accuracy of wall surface temperature analysis while improving computational efficiency.MethodsTraditional finite difference methods (FDM) can accurately capture heat transfer in walls by discretizing the partial differential equations of conduction. …”
    Get full text
    Article
  19. 2339

    Sustainability diet index: a multi-criteria decision analysis proposal for culinary preparations—A case study by Rodrigo Contreras-Núñez, Rodrigo Contreras-Núñez, Andrea Espinoza, Andrea Espinoza, Paola Cáceres

    Published 2025-07-01
    “…IntroductionThe environmental impact of food production and distribution has driven the need to integrate sustainability into food services. While research has traditionally focused on carbon and water footprints, other key aspects, such as local product consumption, are often overlooked.MethodsTherefore, this study proposes the development of a sustainability diet index to address these gaps, using Multi-Criteria Decision Analysis. …”
    Get full text
    Article
  20. 2340

    Support Vector Machines and Model Selection for Control Chart Pattern Recognition by Chih-Jen Su, I-Fei Chen, Tzong-Ru Tsai, Tzu-Hsuan Wang, Yuhlong Lio

    Published 2025-02-01
    “…To conquer these downsides, algorithms for control chart pattern recognition (CCPR) leverage machine learning models to detect non-normality or normality and ensure product quality is established, and novel approaches that integrate the support vector machine (SVM), random forest (RF), and K-nearest neighbors (KNN) methods with the model selection criterion, named SVM-, RF-, and KNN-CCPR, respectively, are proposed. …”
    Get full text
    Article