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421
Study on Bond Defect Detection in Grouted Rock Bolt Systems under Pullout Loads
Published 2022-01-01“…The debonding length increased exponentially with the amplitude ratio (Q) of low frequency to high frequency, and the Q value could be used as the quantitative index of debonding length. …”
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422
EEG personal recognition based on ‘qualified majority’ over signal patches
Published 2022-01-01“…These two aspects are connected because the shorter the epoch’s duration, the lower the contribution of the low‐frequency sub‐bands while enhancing the high‐frequency sub‐bands. However, it is well known that the former characterises the inner brain activity in resting or unconscious states. …”
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423
Novel Registration and Fusion Algorithm for Multimodal Railway Images with Different Field of Views
Published 2018-01-01“…Inverse Contourlet transform to low frequency subband coefficient fused with total variation model and high frequency subband coefficients fused with local region energy is used to reconstruct the fused image. …”
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424
Compact Quadband Bandstop Filter Based on Concentric Split Ring Resonators with Perturbation for Multifunctional Wireless Systems
Published 2022-01-01“…The filter is designed, optimized, and analyzed using High-Frequency Structural Simulator (HFSS). A good agreement is observed between simulated and experimental results. …”
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425
Recommendations for dispensing magnesium products in pharmacy practice and primary health care
Published 2024-12-01“…The results of studies on the relationships between the occurrence of these diseases and magnesium deficiency helped identify the groups of patients who could benefit from this element. Considering the high frequency of patients using community pharmacy services, pharmacists present a group of medical professionals that can readily diagnose a potential magnesium deficiency in a relatively easy manner and can recommend supplementation in the diet or magnesium deficiency treatment with medicinal products when there are symptoms. …”
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426
SPOP Inhibition of Endometrial Carcinoma and Its Clinicopathological Relationship
Published 2022-01-01“…SPOP (speckle-type POZ protein) has changed in EC with a statistically high frequency. This research may play a crucial role in the initiation and progression of EC, ultimately leading to fresh therapeutic targets. …”
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427
Conv‐ELSTM: An ensemble deep learning approach for predicting short‐term wind power
Published 2024-12-01“…The framework leverages a data‐driven approach to identify the intrinsic components of wind power data, including high‐frequency and low‐frequency components. A convolutional layer‐based feature fusion network is then established to properly extract important information from irrelevant wind energy features. …”
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428
Electromagnetic Interference from Swimming Pool Generator Current Causing Inappropriate ICD Discharges
Published 2017-01-01“…Intracardiac electrograms revealed unique, high-frequency signals at exactly 120 msec suggestive of EMI from a strong external source of alternating current. …”
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429
Analysis and Forecast of a Tornadic Thunderstorm Using Multiple Doppler Radar Data, 3DVAR, and ARPS Model
Published 2013-01-01“…Because these three radars are located far away from the targeted storm, they were overlooked by previous studies. High-frequency intermittent 3DVAR analyses are performed using the data from five radars that together provide a more complete picture of this storm. …”
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430
A Novel Approach of Impulsive Signal Extraction for Early Fault Detection of Rolling Element Bearing
Published 2017-01-01“…The fault signals of rolling element bearing are often characterized by the presence of periodic impulses, which are modulated high-frequency harmonic components. The features of early fault in rolling bearing are very weak, which are often masked by background noise. …”
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431
A Comprehensive Review of Multi-Port DC/DC Converters for The Off-Grid System Integration with Renewable Energy Resources
Published 2023-06-01“…The isolated MPC is more effective than the non-isolated ones in terms of isolation between the input power stage and output but has some drawbacks such as the high cost, and large size of the high-frequency transformer (HFT). In this review paper, a high-efficiency voltage-regulator/battery energy storage system (VR-BESS) was presented as a multi-port DC-DC converter for the standalone PV (photovoltaic) array. …”
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432
Fretting Wear Behavior and Damage Mechanisms of Inconel X-750 Alloy in Dry Contacts
Published 2019-01-01“…Tribological behavior of the Inconel X-750 alloy disk subjected to fretting against the GCr15 steel ball was investigated in an ambient laboratory air with relative humidity of 55–65%. A high-frequency oscillating Optimol SRV 4 tribometer was employed to execute dry fretting tests in the partial and gross slip regimes under constant 100 N normal load. …”
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433
Fault Diagnosis for Reducer via Improved LMD and SVM-RFE-MRMR
Published 2018-01-01“…The vibration signals are usually characterized by nonstationary, nonlinearity, and high frequency shocks, and the redundant features degrade the performance of fault diagnosis methods. …”
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434
Study on Main Drugs and Drug Combinations of Patient-Controlled Analgesia Based on Text Mining
Published 2020-01-01“…First, the names of the drugs in the sample were identified by MetaMap package; then, Bicomb software was used to extract high-frequency drugs for the word frequency analysis and to construct a drug-sentence matrix. …”
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435
Model Test Study on the Influence of Train Speed on the Dynamic Response of an X-Section Pile-Net Composite Foundation
Published 2019-01-01“…The peak spectral vibration acceleration caused by the train loading is located within the range of medium-to-low-frequency vibrations, and the characteristic frequency corresponds to the passing frequency of the bogies and carriages; as the train speed increases, the peak spectral vibration acceleration increases, and the high-frequency components increase significantly.…”
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436
Sensory Behaviours and Resting Parasympathetic Functions among Children with and without ADHD
Published 2021-01-01“…Baseline parasympathetic functions were indexed using the normalized unit of heart rate variability high-frequency bands (HF n.u.). Children underwent an experimental protocol consisting of watching a silent cartoon movie while HF n.u. is continuously monitored, within a controlled environment. …”
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437
Impedance Spectroscopy and FTIR Studies of PEG - Based Polymer Electrolytes
Published 2011-01-01“…The imaginary part of dielectric constant (εi) decreases with increase in frequency in the low frequency region whereas frequency independent behavior is observed in the high frequency region.…”
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438
Optimization of the Coupling Coefficient of the Inductive Link for Wireless Power Transfer to Biomedical Implants
Published 2022-01-01“…Simulations are conducted by using the high-frequency structure simulator (HFSS). Analytic results are verified with simulations. …”
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439
End-to-End Methodology for Predictive Maintenance Based on Fingerprint Routines and Anomaly Detection for Machine Tool Rotary Components
Published 2025-01-01“…This is done through fingerprint routines; that is, processes that are executed periodically under the same no-load conditions to obtain a snapshot of the machine condition. High-frequency vibration data gathered during these routines combined with knowledge about the machine structure and its components are used to obtain failure-specific features. …”
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440
Wave Attenuation and Dispersion in a 6 mm Diameter Viscoelastic Split Hopkinson Pressure Bar and Its Correction Method
Published 2020-01-01“…The results indicate that the high-frequency harmonics attenuate faster in a higher phase velocity. …”
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