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8621
Optically Referenced Microwave Generator with Attosecond-Level Timing Noise
Published 2025-02-01“…The microwave regeneration method employs an optical-to-microwave phase detector based on a fiber-based Sagnac loop to produce the error signal between a 9.6 GHz dielectric resonator oscillator (DRO) and the OFC. …”
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8622
A study on predicting the risk of coronary artery disease in OSAHS patients based on a four-variable screening tool potential predictive model and its correlation with the severity...
Published 2025-06-01“…The Hosmer-Lemeshow test, calibration curve, and DCA results indicate that potential predictive model based on the 4 V possesses significant clinical applicability in predicting OSAHS in conjunction with CAD. …”
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8623
Robust Higher-Order Nonsingular Terminal Sliding Mode Control of Unknown Nonlinear Dynamic Systems
Published 2025-05-01“…Three simulated bench test examples, in which two of them have representatively numerical challenges and the other is a two-link rigid robotic manipulator with two input and two output (TITO) operational mode as a typical multi-degree interconnected nonlinear dynamics tool, are studied to demonstrate the effectiveness of the MFTSMC and employed to show the user-transparent procedure to facilitate the potential applications. The major MFTSMC performance includes (1) finite time (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>2.5</mn><mo>±</mo><mn>0.05</mn></mrow></semantics></math></inline-formula> s) dynamic stabilization to equilibria in dealing with total physical model uncertainty and disturbance, (2) effective dynamic tracking and small steady state error <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mn>0</mn><mo>±</mo><mn>0.002</mn></mrow></semantics></math></inline-formula>, (3) robustness (zero sensitivity at state output against the unknown bounded internal uncertainty and external disturbance), (4) no singularity issue in the neighborhood of TSM <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>σ</mi><mo>=</mo><mn>0</mn></mrow></semantics></math></inline-formula>, (5) stable chattering with low amplitude (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo>±</mo><mn>0.01</mn></mrow></semantics></math></inline-formula>) at frequency 50 mHz due to high gain used against disturbance <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>d</mi><mo stretchy="false">(</mo><mi>t</mi><mo stretchy="false">)</mo><mo>=</mo><mn>100</mn><mo>+</mo><mn>30</mn><mi>sin</mi><mo stretchy="false">(</mo><mn>2</mn><mi>π</mi><mi>t</mi><mo stretchy="false">)</mo></mrow></semantics></math></inline-formula>). …”
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8624
Detecting Anomalies in Attributed Networks Through Sparse Canonical Correlation Analysis Combined With Random Masking and Padding
Published 2024-01-01“…The empirical evaluation across multiple benchmark datasets validates the potential of the proposed approach as a pivotal tool in advancing anomaly detection research and applications.…”
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8625
Adversarial denoising of EEG signals: a comparative analysis of standard GAN and WGAN-GP approaches
Published 2025-05-01“…The demonstrated improvements in signal quality underscore the promise of adversarially trained models for applications ranging from basic neuroscience research to real-time brain–computer interfaces (BCIs) in clinical or consumer-grade settings. …”
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8626
Correction of TRMM 3B43 Monthly Precipitation Data Using Quantile Regression Model in the Urmia Lake Basin
Published 2024-05-01“…Furthermore, the Mean Absolute Error (MAE) significantly decreased after quantile regression correction, demonstrating a closer alignment between TRMM data and observed rainfall. …”
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8627
Nanoscale Organic Contaminant Detection at the Surface Using Nonlinear Bond Model
Published 2025-02-01“…This approach offers valuable applications in environmental monitoring, combining the sensitivity of SHG with the adsorption properties of GO for nanoscale detection.…”
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8628
Development and Validation of a Brain Aging Biomarker in Middle-Aged and Older Adults: Deep Learning Approach
Published 2025-08-01“…Model performance was evaluated using mean absolute error (MAE) against benchmark models, while generalization capability was further validated on an external UK Biobank dataset. …”
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8629
Modeling the compressive strength behavior of concrete reinforced with basalt fiber
Published 2025-04-01“…Abstract This research investigates the compressive strength behavior of basalt fiber-reinforced concrete (BFRC) using machine learning models to optimize predictions and enhance its practical applications. The study incorporates various modeling techniques, including Artificial Neural Networks (ANN), k-Nearest Neighbors (KNN), Support Vector Machines (SVM), Decision Trees, and Random Forest (RF), to evaluate their predictive capabilities. …”
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8630
Evaluating Degenerative Lumbar Disease with Markerless 3D Motion Capture: Reliability and Validity in Sit-to-Stand Test
Published 2025-05-01“…Markerless motion capture offers a portable alternative, yet its functional assessment applications in DLD remain underexplored. Thus, the aim of this study is to evaluate the reliability and validity of markerless motion capture for assessing functional tests in DLD patients. …”
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8631
Research on Hybrid Architecture Neural Networks for Time Series Prediction
Published 2025-01-01“…Although MAE was slightly higher, the overall error control remained within an acceptable range, validating the model’s stability and effectiveness. …”
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8632
A 3×3 Antenna Beamforming Network Based on Waveguide Nolen Matrix for Ka-Bands
Published 2024-01-01“…Therefore, this beamforming has a greater impact on the mm wave beamforming networks and applications.…”
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8633
Nonlinear Dynamical Model and Analysis of Emotional Propagation Based on Caputo Derivative
Published 2025-06-01“…This framework advances the mechanistic understanding of co-evolutionary dynamics in emotion-modulated social networks, supporting applications in clinical intervention design, collective sentiment modeling, and psychophysiological coupling research.…”
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8634
On the hydrostatic approximation in rotating stratified flow
Published 2025-07-01“…</p> <p>Calculating the difference of the two projection-evolution operators, the expression of the error, scaling and prefactors done by the hydrostatic approximation is obtained. …”
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8635
Inverse Dynamic Parameter Identification for Remote Sensing of Soil Moisture From SMAP Satellite Observations
Published 2024-01-01“…The results demonstrated that the incorporation of dynamic <italic>h</italic> and ω parameters, derived on a daily scale, markedly enhanced the soil moisture retrieval performance with an average unbiased root-mean-square error (ubRMSE) of 0.01 (0.02) m<sup>3</sup>/m<sup>3</sup> and Pearson correlation (<italic>R</italic>) of 0.95 (0.90) for the SCA (RDCA) algorithms, indicating that dynamic parameterization holds significant promise for improving retrieval accuracy. …”
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8636
Fitts’ law-based identification of motor development stages for the upper limb: proof of concept in three age groups
Published 2025-05-01“…From an Information Theory perspective, throughput (TP) reflects processing speed in reaching tasks, while error rate (ER) quantifies incorrect selections. …”
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8637
Effect of grinding wheel type and cooling method on grinding quality of SiCf/SiC ceramic matrix composites
Published 2025-04-01“…Therefore, in practical applications, the grinding wheels and cooling methods should be reasonably selected based on different processing requirements to improve the processing quality and the efficiency of SiCf/SiC composites. …”
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8638
TanSat-2: a new satellite for mapping solar-induced chlorophyll fluorescence at both red and far-red bands with high spatiotemporal resolution
Published 2025-08-01“…However, accurate mapping of dual-band (red and far-red) SIF with daily temporal resolution and kilometer-level spatial resolution remains a critical gap, despite its significance for various applications. The Chinese next-generation greenhouse gas monitoring satellite, TanSat-2, is set to succeed the original TanSat satellite, aiming to record the fraction of greenhouse gases, pollutants, and SIF measurements from space. …”
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8639
Evaluating snow depth retrievals from Sentinel-1 volume scattering over NASA SnowEx sites
Published 2024-11-01“…Our findings provide an open-source framework for future investigations, along with insight into the applicability of C-band SAR for snow depth retrievals and directions for future C-band snow depth retrieval algorithm development. …”
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8640
Comprehensive Evaluation of Operation Safety of Earth-rock Dams Based on Weight Optimization-cloud Model
Published 2025-07-01“…It combines with the cloud model to evaluate the operation state of earth and rock dams from both quantitative and qualitative perspectives, which more realistically and effectively reflects the safety condition of the dams and provides a reference for the safety evaluation of the dam.ConclusionsThe results indicated that this method is applicable to the comprehensive evaluation of the operational safety of earth and rock dams. …”
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