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1201
DLD: An Optimized Chinese Speech Recognition Model Based on Deep Learning
Published 2022-01-01“…To improve the performance of offline Chinese speech recognition, we propose a hybrid acoustic model of deep convolutional neural network, long short-term memory, and deep neural network (DCNN-LSTM-DNN, DLD). …”
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1202
An Experimental Study on Cracking Behavior of Precracked Sandstone Specimens under Seepage Pressure
Published 2018-01-01“…For this purpose, precracked sandstone specimens were prepared with different fissure angles, and a seepage pressure loading device was created. Together with the acoustic emission (AE) system, the loading device was adopted to perform uniaxial compression tests with or without seepage pressure. …”
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1203
Retiming dynamics of harmonically mode-locked laser solitons in a self-driven optomechanical lattice
Published 2025-02-01“…Here, in a series of carefully designed experiments, we elucidate the retiming dynamics of laser pulses generated in a soliton fiber laser harmonically mode-locked at GHz frequencies to the acoustic resonance in a photonic crystal fiber (PCF) core. …”
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1204
Cyclic Evolution of Synergized Spin and Orbital Angular Momenta
Published 2025-01-01“…Remarkably, this evolution acquires a nontrivial geometric phase, leading to its representation on a Möbius strip. Experimentally, an acoustic cavity array is designed, whose dipole resonances precisely mimic the p‐orbitals, with pressure fields featuring the spatial characteristics and velocity fields the vectorial orientations. …”
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1205
Impact of power ultrasound on the quality of leafy green produce through a multifrequency, multimode, modulated system
Published 2025-02-01“…Ultrasound treatment at an acoustic power density below 80 W/L had no significant effect (P > 0.05) on the overall sensory quality of leafy greens during 14 days of storage. …”
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1206
Porous ground treatments for propeller noise reduction in ground effect
Published 2025-01-01“…Coherence analysis revealed that porous treatments improve the spatial consistency of acoustic signals, making noise propagation more predictable and controllable. …”
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1207
Experimental Investigation of Crack Initiation and Propagation in the Unreinforced Masonry Specimen Subjected to Vertical Settlement
Published 2021-01-01“…To study the cracking process of the wall caused by differential settlement under a uniformly distributed load on the top of the wall, a laboratory model experiment was carried out on large-scale masonry specimens, and the acoustic emission (AE) technique and digital close-range industrial photogrammetry were adopted to monitor the AE signals and displacement characteristics of the masonry specimens during loading in real time. …”
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1208
IMPORTANCE-PERFORMANCE ANALYSIS FOR MODELLING MAINTENANCE PRIORITISATION IN HIGHER INSTITUTIONS
Published 2014-12-01“…However aesthetics, structural safety and lighting appear to be performing satisfactory even though they were below student’s satisfaction; whereas, thermal comfort, ventilation, fire safety & exit, acoustic control, and cleanliness are clearly underperforming and require immediate attention. …”
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1209
Axial Spacing Effects on Rotor-Rotor Interaction Noise and Vibration in a Contra-Rotating Fan
Published 2019-01-01“…With the increase of axial spacing, the rotor-rotor interaction is weakened, while unsteady features of two-stage rotor blades tend to be consistent. The acoustic and vibration effects of axial spacing are studied. …”
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1210
The Time-Space Joint Response Characteristics of AE-UT under Step Loading and Its Application
Published 2018-01-01“…The acoustic emission (AE) and ultrasonic (UT) simultaneous monitoring program is designed using concrete samples under step loading. …”
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1211
Meaningful Multimodal Emotion Recognition Based on Capsule Graph Transformer Architecture
Published 2025-01-01“…Specifically, the proposed model concatenates multimodality inputs using a graph convolutional network to extract acoustic modality, a capsule network to generate the textual modality, and vision transformer to acquire the visual modality. …”
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1212
Strengthening effect of particle gradation on the mechanical properties of sand powder 3D printed rock analog
Published 2025-03-01“…The effects of various particle sizes and gradations on the mechanical properties of these specimens were investigated through a series of mechanical tests, acoustic emission analysis, and scanning electron microscopy. …”
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1213
Fully integrated wearable control system for micro/nanorobot navigation
Published 2025-01-01“…The sensor array could perceive real-time changes in gestures, wrist rotation, and acoustic signals. AI planner based on machine learning offers adaptive path planning in response to dynamically changing signals to generate magnetic fields for the on-demand manipulation of micro/nanorobots. …”
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1214
Planning and Implementation of Active Leakage Control in the Management of Unreported Leakages
Published 2022-07-01“…During the field studies, minimum night flow rates were monitored in 3 pilot isolated areas, potential recoverable leaks were calculated and their location was determined by acoustic methods. As a result of these studies, a total of 38 unreported leak points were identified and repaired in 3 pilot regions, and as a result, a total of 35 l/s flow rate was saved to the system in 3 regions. …”
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1215
Insights from in vivo preclinical cancer studies with histotripsy
Published 2024-12-01“…Histotripsy is the first noninvasive, non-ionizing, and non-thermal ablation technique that mechanically fractionates target tissue into acellular homogenate via controlled acoustic cavitation. Histotripsy has been evaluated for various preclinical applications requiring noninvasive tissue removal including cancer, brain surgery, blood clot and hematoma liquefaction, and correction of neonatal congenital heart defects. …”
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1216
Design and Evaluation of a Voice-Controlled Elevator System to Improve the Safety and Accessibility
Published 2024-01-01“…An objective evaluation measured acoustic conditions rigorously using a dataset of 2900 audio files recorded inside a laboratory elevator cabin featuring two internal coatings, five audio input devices, and under four distinct noise conditions. …”
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1217
Amortissement des phonons dans un superfluide 2D : insuffisance de la règle d’or de Fermi à basse température
Published 2024-02-01“…Thus, in this limit, we should always be able to calculate the damping rate of thermal phonons by applying Fermi’s golden rule to the Hamiltonian H3 of cubic phonon-phonon coupling taken from quantum hydrodynamics, at least in the case of a convex acoustic branch and in the collisionless regime (where the eigenfrequency of the considered phonons remains much greater than the gas thermalization rate). …”
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1218
Changes in Vowel Articulation with Subthalamic Nucleus Deep Brain Stimulation in Dysarthric Speakers with Parkinson’s Disease
Published 2014-01-01“…Vowel articulation was compared ON-simulation versus OFF-stimulation using acoustic vowel space and formant centralization ratio, calculated with the first (F1) and second formant (F2) of the vowels /i/, /u/, and /a/. …”
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1219
Rupture and Migration Law of Disturbed Overburden during Slicing Mining of Steeply Dipping Thick Coal Seam
Published 2020-01-01“…Steeply inclined and thick coal seams in Huainan Panbei Coal Mine in Anhui Province, China, were analyzed by physical analog modeling, acoustic emission (AE), and distributed fiber sensing (DBS). …”
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1220
Slurry and Technology Optimization for Grouting Fissures in Earthen Sites with Quicklime
Published 2019-01-01“…., microlime piles in the fissure) in fissure grouting field experiments. The acoustic wave, penetration resistance, and infrared thermal imaging results after fissure grouting were used to develop a preliminary explanation for the related mechanisms of slurry swelling, hardening, and lime pile compaction. …”
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