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1241
New exact soliton wave solutions appear in optical fibers with Sardar sub equation and new auxiliary equation techniques
Published 2025-02-01“…This model is used to study the interaction between ion-acoustic waves and electron plasma waves. This helps in understanding energy transfer and wave stability in plasma, which is essential for applications like fusion energy research and space plasma. …”
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1242
Chiral exceptional point enhanced active tuning and nonreciprocity in micro-resonators
Published 2025-01-01“…Abstract Exceptional points (EPs) have been extensively explored in mechanical, acoustic, plasmonic, and photonic systems. However, little is known about the role of EPs in tailoring the dynamic tunability of optical devices. …”
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1243
State-of-the-Art Detection and Diagnosis Methods for Rolling Bearing Defects: A Comprehensive Review
Published 2025-01-01“…It discusses methods based on vibration analysis, acoustic methods, current-based methods, electromagnetic methods, infrared methods, radiographic methods, visual methods, and intelligent detection methods. …”
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1244
Exponential distribution of wave-driven near-bed water speeds under short-crested waves: a case study in the eastern Gulf of Riga, the Baltic Sea
Published 2025-01-01“…This array is complemented by an acoustic Doppler velocimeter (ADV). The average background current is very weak, approximately 0.003 m/s in the measurement location. …”
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1245
Effects of two different cooling impact treatments on the thermal damage and mechanical properties of high-temperature granite
Published 2025-02-01“…The stage damage characteristics of the rock were analyzed in terms of mechanical deformation, acoustic emission, and temperature field. A rock brittleness evaluation method for the entire deformation process, considering the stress–strain relationship and energy storage–dissipation mechanism of rocks, is proposed. …”
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1246
Key Intelligent Pesticide Prescription Spraying Technologies for the Control of Pests, Diseases, and Weeds: A Review
Published 2025-01-01“…In the target information acquisition section, target identification technologies based on images, remote sensing, acoustic waves, and electronic nose are introduced. …”
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1247
Combined drug delivery and treatment monitoring using a single high frequency ultrasound system
Published 2024-12-01“…Ultrasound-mediated drug delivery is typically performed using transducers with center frequencies [Formula: see text]1 MHz to promote acoustic cavitation. Such frequencies are not commonly used for diagnostic ultrasound due to limited spatial resolution. …”
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1248
Classifying vocal responses of broilers to environmental stressors via artificial neural network
Published 2025-01-01“…This study aims to classify various stress calls in broilers exposed to cold, heat, or wind, using acoustic signal processing and a transformer artificial neural network (ANN). …”
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1249
Experimental Study on the Fracture Evolution Processof Rock-like Specimens Containing a Closed RoughJoint Based on 3D-Printing Technology
Published 2020-01-01“…Besides, digital image correlation (DIC) method and acoustic emission (AE) system are used to investigate the whole evolution process of strain fields and crack propagation during loading. …”
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1250
Can laser irradiation improve the strength of weak rock mass?
Published 2025-01-01“…Multi-technique observations and measurements were used to fully understand the peculiar modifications of the specimens under laser treatment, i.e. mechanical loading, acoustic emission (AE) monitoring, digital image correlation (DIC) strain field evaluation, infrared thermography (IRT) monitoring and X-ray computed tomography (CT) scanning. …”
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1251
Deep characteristic learning model for real-time flow monitoring based on H-ADCP
Published 2025-02-01“…Study focus: Real-time flow monitoring based on horizontal-acoustic Doppler current profiler (H-ADCP), which remains insufficient to deal with low monitoring accuracy, complex flow characteristics, and large data volumes caused by the construction and operation of hydraulic engineering, backwater, tides, siltation changes, and high-frequency monitoring. …”
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1252
On the Evidence of Dynamical Dark Energy
Published 2024-12-01“…To elucidate the robustness of the baryon acoustic oscillation (BAO) data measured by the dark energy spectroscopic instrument (DESI) in capturing the dynamical behavior of dark energy, we assess the model dependence of the evidence for dynamical dark energy inferred from the DESI BAO data. …”
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1253
Mechanical adhesion energy of thermal oxide scale on 0.01 and 0.12 wt.% Si-containing hot-rolled steels
Published 2025-01-01“….% Si, utilizing a tensile testing machine equipped with an observation setup and acoustic emission monitoring. Results indicate that the average scale thickness for the 0.01 wt.% Si and 0.12 wt.% Si steels were 10.83 ± 0.76 µm and 8.13 ± 1.08 µm, respectively, with the oxide scales consisting of hematite, magnetite, wustite, and iron. …”
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1254
Fast vocal-motor tracking of escaping prey in echolocating bats
Published 2025-01-01“…Conclusions Echolocating bats can track evasive prey via a fast vocal-motor feedback loop allowing them to expand their acoustic depth of field. This echo-guided sensory adjustment contributes to the hunting superiority of bats as the most formidable insectivorous predator of the night skies.…”
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1255
Development of a photoacoustic acquisition system and their proof-of-concept for hemoglobin detection
Published 2025-01-01“…PA systems combine an illumination source to excite the sample molecules, with an ultrasound sensor to measure the generated ultrasonic waves, combining the advantages of optics and acoustic methodologies to safely acquire tridimensional signals and images at various depths.This work is focused on the design, implementation and test of an acquisition electronics circuit, based on the PA principle, for hemoglobin (Hb) detection, aiming towards a future integration within an OoC platform. …”
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1256
Impact of Cell Layout on Bandwidth of Multi-Frequency Piezoelectric Micromachined Ultrasonic Transducer Array
Published 2024-12-01“…Underwater experiments were conducted to assess the acoustic performance, especially the bandwidth. We found that the densest arrangement of the same cells produced the largest bandwidth, achieving a 92% transmission bandwidth and a 50% burst-echo bandwidth at 6 MHz. …”
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1257
The Influence Mechanism and Optimization of the Sensor Network on the MS/AE Source Location
Published 2020-01-01“…The sensor network layout is a key factor affecting the accuracy and stability of the microseismic/acoustic source (MS/AE) location. Based on the arrival-time-difference principle, the hyperbolic/hyperboloidal governing equations for the source location are derived. …”
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1258
Automatic Measurement Techniques for Compositional Properties of Fresh Concrete: Focus on Water/Cement Ratio and Air Content
Published 2024-12-01“…The research compared microwave absorption (MWA) and time-domain reflectometry (TDR) techniques for w/c ratio measurement as well as acoustic wave propagation (AWP) technique for air content measurement, against the reference testing methods. …”
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1259
Structural and electronic features enabling delocalized charge-carriers in CuSbSe 2
Published 2025-01-01“…Using a combination of theory and experiment, the critical enabling factors are found to be: 1) having a layered structure, which allows distortions to the unit cell during the propagation of an acoustic wave to be relaxed in the interlayer gaps, with minimal changes in bond length, thus limiting deformation potentials; 2) favourable quasi-bonding interactions across the interlayer gap giving rise to higher electronic dimensionality; 3) Born effective charges not being anomalously high, which, combined with the small bandgap ( $$\le$$ ≤ 1.2 eV), result in a low ionic contribution to the dielectric constant compared to the electronic contribution, thus reducing the strength of Fröhlich coupling. …”
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1260
Performance Analysis: AI-based VIST Audio Player by Microsoft Speech API
Published 2021-07-01“…Researchers have adopted many techniques to solve speech recognition challenges under the umbrella of Artificial Intelligence (AI), Pattern Recognition and Acoustic Phonetic approaches. Variation in pronunciation of words, individual accents, unwanted ambient noise, speech context, and quality of input devices are some of these challenges in speech recognition. …”
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