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  1. 241

    Degradation State Identification of Cracked Ultrasonic Motor by Means of Fault Feature Extraction Method by Guoqing An, Hongru Li

    Published 2019-01-01
    “…The cracking of piezoelectric ceramics is the main reason of failure of an ultrasonic motor. Since the fault information is too weak to reflect the condition of piezoelectric ceramics especially in the early degradation stage, a fault feature extraction method based on multiscale morphological spectrum and permutation entropy is proposed. …”
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    A lightweight multi scale fusion network for IGBT ultrasonic tomography image segmentation by Meng Song, Zhaoba Wang, Youxing Chen, Ya Li, Yong Jin, Bei Jia

    Published 2025-01-01
    “…To address these challenges, this paper constructs a dedicated IGBT ultrasonic tomography (IUT) dataset using Scanning Acoustic Microscopy (SAM) and proposes a lightweight Multi-Scale Fusion Network (LMFNet) aimed at improving segmentation accuracy and processing efficiency in ultrasonic images analysis. …”
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  5. 245

    Ultrasonic Studies of Some Biomolecules in Aqueous Guanidine Hydrochloride Solutions at 298.15 K by R. Palani, A. Geetha, S. V. S. L. Poornima

    Published 2011-01-01
    “…Ultrasonic velocity (U), viscocity (η) and density (ρ) of L - ascorbic acid, dextrose and sucrose in aqueous guanidine hydrochloride (0.3 m) have been measured at 298.15 K. …”
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  6. 246
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    Data-Driven Methodology for the Prediction of Fluid Flow in Ultrasonic Production Logging Data Processing by Hongwei Song, Ming Li, Chaoquan Wu, Qingchuan Wang, Shunke Wei, Mingxing Wang, Wenhui Ma

    Published 2022-01-01
    “…Compared to previously used methods of feature extraction from the ultrasonic Doppler power spectrum signals, the present method provides a theoretical basis for the interpretation of ultrasonic multiphase flow logging data. …”
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  8. 248

    Synthesis of a Cationic Polyacrylamide under UV Initiation and Its Flocculation in Estrone Removal by Jiaoxia Sun, Xiqin Ma, Xiang Li, Jianxin Fan, Qingkong Chen, Xuelian Liu, Jin Pan

    Published 2018-01-01
    “…A ternary cationic polyacrylamide (CPAM) with the hydrophobic characteristic was prepared through ultraviolet- (UV-) initiated polymerization technique for the estrone (E1) environmental estrogen separation and removal. …”
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  9. 249

    Reverse Time Migration: A Seismic Imaging Technique Applied to Synthetic Ultrasonic Data by Sabine Müller, Ernst Niederleithinger, Thomas Bohlen

    Published 2012-01-01
    “…Ultrasonic echo testing is a more and more frequently used technique in civil engineering to investigate concrete building elements, to measure thickness as well as to locate and characterise built-in components or inhomogeneities. …”
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  10. 250

    Experimental Evaluation Performance of Ultrasonic Multisensor Deployment Geometries for a Data Acquisition System by Jean-François Dikoundou Essiben, Luc Eyembe Ihonock, Jacques Matanga, Yong Suk Joe

    Published 2024-01-01
    “…This paper proposed a model to estimate sensor spacing and a new deployment geometry and evaluates the performance of an ultrasonic sensor array according to the deployment geometry. …”
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  11. 251

    Corrosion Monitoring and Evaluation of Reinforced Concrete Structures Utilizing the Ultrasonic Guided Wave Technique by Dongsheng Li, Shuaifang Zhang, Wei Yang, Wenyao Zhang

    Published 2014-02-01
    “…In this paper, the ultrasonic guided wave (UGW) technique is adopted to monitor the reinforced concrete corrosion damage evolution process. …”
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    MECHANICAL PROPERTIES OF INCONEL 617B ALLOYAT ULTRA-SUPERCRITICAL TEMPERATURE by YIN Tao, CAI LiXun, BAO Chen

    Published 2018-01-01
    “…At last,Evolutive behavior of cyclic stress,cyclic constitutive relationships,relationships between strain amplitudes and cyclic lives,ultra-supercritical temperature effects are studied. …”
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    Ultra-High-Energy Cosmic Rays Accelerated by Magnetically Dominated Turbulence by Luca Comisso, Glennys R. Farrar, Marco S. Muzio

    Published 2024-01-01
    “…Ultra-high-energy cosmic rays (UHECRs), particles characterized by energies exceeding 10 ^18 eV, are generally believed to be accelerated electromagnetically in high-energy astrophysical sources. …”
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    Challenges for beyond 5G:ultra-densification of radio access network by Fumiyuki Adachi, Ryo Takahashi, Hidenori Matsuo

    Published 2020-11-01
    “…Ultra-densification of radio access network (RAN) is a key to efficiently support the exponentially growing mobile data traffic in 5G era.Furthermore,extremely high frequency band like mmWave band was utilized to solve the bandwidth shortage problem.However,untra-dense reusing the same radio resource produced severe interference.And the mmWave link was very harsh due to frequent blockage by obstacles.Therefore a new RAN architecture needed to be introduced to realize ultra-reliable communications in such a severe radio propagation environment.An architecture of distributed MIMO based RAN was presented.Then,enhanced interference coordination (eIC) was described.Finally,the effectiveness of distributed MIMO based RAN with eIC by computer simulation was showed.…”
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    Backscatter communication assisted vehicular positioning technology with ultra-high accuracy by Kaifeng HAN, Tiezhi LIU

    Published 2020-07-01
    “…The accurate vehicular positioning technology has been the fundamentalfunction for safer auto-driving and vehicular-to-everything networks.One research trend focuses on enabling the low-cost,reliable,and accurate vehicular positioning in high-density cities,tunnels,and underground where the GPS or cellular positioning can’t work due to the signaling blocking.To this end,a novel backscatter communication assisted vehicular positioning system was proposed where a backscatter-reader (with two antennas) was deployed on vehicle and at least one backscatter-tag is deployed along a roadside,based on which the location of vehicle could be estimated with ultra-high reliability and accuracy.Through simulation verification,BackCom vehicle positioning technology can achieve extremely high positioning accuracy.At the same time,BackCom’s vehicle positioning technology is very easy to expand.By increasing the number of antennas in its positioning reader,it could further improve its positioning accuracy.BackCom vehicle positioning technology has the advantages of low cost,low power consumption,high accuracy,high reliability,and easy deployment.It is suitable for various driving environments and has extremely high theoretical research value and commercial value.…”
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