Mostrando 8,181 - 8,200 Resultados de 66,571 Para Buscar '"No wave"', tiempo de consulta: 0.46s Limitar resultados
  1. 8181
  2. 8182
    “…This paper characterizes laser-generated guided waves in a metal-lined composite-overwrapped pressure vessel (COPV) to assess typical damage, including interfacial debonding and low-velocity impact damage. …”
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  3. 8183
    “…However, it is unclear whether piezoelectric composite materials are suitable for guided ultrasonic wave (GUW) detection, which is crucial for structural health monitoring (SHM) in different applications. …”
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  4. 8184
    “…Background: The greatest challenges are imposed on the overall capacity of disease management when the cases reach the maximum in each wave of the pandemic. Methods: The cases and deaths for the four waves of COVID-19 in 119 countries and regions (CRs) were collected. …”
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  5. 8185
    “…Here, we present a unibody acoustic metamaterial spherical shell with equidistant defected piezoelectric cavities, referred to as the metasphere beamforming acoustic sensor (MBAS). It demonstrates a wave-confining capability and low self-noise, simultaneously achieving an outstanding intrinsic signal-to-noise ratio (72 dB) and an ultrahigh sensitivity (137 mV(pp)/Pa or −26.3 dBV), with a range spanning the daily phonetic frequencies (0 to 1500 Hz) and omnidirectional beamforming for the perception and spatial filtering of sound sources. …”
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  6. 8186
    “…OBJECTIVES: To evaluate the clinical diagnostic feasibility of two-dimensional shear wave elastography (2D SWE) on canine acute pancreatitis for enhanced diagnostic confidence. …”
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  7. 8187
  8. 8188
  9. 8189
    “…A different rate of SARS‐CoV‐2 circulation was observed among the pediatric population between the pandemic waves. During the second wave, two peaks of cases were observed. …”
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  10. 8190
    “…The aim of this study was to investigate the relationship between mastitis and supra-mammary lymph nodes in lactating cows in terms of Pulsed-wave (PW) Doppler ultrasonographical measurements. …”
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  11. 8191
  12. 8192
    “…In order to observe the clinical efficacy of shock waves in the treatment of avascular necrosis of the femoral head in the early and middle stages, a clinical application method of a shock wave in the treatment of avascular necrosis of the femoral head in the early and middle stages was proposed. …”
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  13. 8193
    “…OBJECTIVE: Determine the role of strain elastography (SE) and shear wave elastography (SWE) in differentiating benign and malignant breast lesions. …”
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  14. 8194
    “…Local field potential (LFP) deflections and oscillations define hippocampal sharp-wave ripples (SWRs), one of the most synchronous events of the brain. …”
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  15. 8195
    “…Here we describe the first use of preclinical 3D elastography to map the shear wave speed (c(s)), which is related to tissue stiffness, in vivo and demonstrate the ability of our novel 3D vibrational shear wave elastography (3D-VSWE) system to detect tumour response to a therapeutic challenge. …”
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  16. 8196
  17. 8197
  18. 8198
  19. 8199
    “…In this paper, guided Lamb wave tomography and eddy current testing (ECT) techniques were combined to locate and evaluate fiber breaks in carbon-fiber-reinforced plastic (CFRP) structures. …”
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  20. 8200
    “…The method of using millimeter-wave radar sensors to detect human vital signs, namely respiration and heart rate, has received widespread attention in non-contact monitoring. …”
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