Suggested Topics within your search.
Showing 1,141 - 1,160 results of 1,433 for search '"acoustics"', query time: 0.05s Refine Results
  1. 1141

    Design of Honeycomb Microperforated Structure with Adjustable Sound Absorption Performance by Shanlin Yan, Jinwu Wu, Jie Chen, Qibo Mao, Xiang Zhang

    Published 2021-01-01
    “…Thus, a better absorption performance is achieved by changing the position of the inner MPP. Acoustic impedance of the structure was calculated based on transfer matrix method. …”
    Get full text
    Article
  2. 1142

    Hybrid mechanical metamaterials: Advances of multi-functional mechanical metamaterials with simultaneous static and dynamic properties by Ana Carolina Azevedo Vasconcelos, Dingena Schott, Jovana Jovanova

    Published 2025-02-01
    “…Mechanical metamaterials are architected structures with unique functionalities, such as negative Poisson's ratio and negative stiffness, which are widely employed for absorbing energy of quasi-static and impact loads, giving improved mechanical response. Acoustic/elastic metamaterials, their dynamic counterparts, rely on frequency-dependent properties of their microstructure elements, including mass density and bulk modulus, to control the propagation of waves. …”
    Get full text
    Article
  3. 1143

    Quantitative photoacoustic imaging using known chromophores as fluence marker by Anjali Thomas, Max Rietberg, Mervenur Akkus, Gijs van Soest, Kalloor Joseph Francis

    Published 2025-02-01
    “…Photoacoustic imaging offers optical contrast images of human tissue at acoustic resolution, making it valuable for diverse clinical applications. …”
    Get full text
    Article
  4. 1144

    Wearable Voice Dosimetry System by Marcos Llorente, Adam Podhorski, Secundino Fernandez

    Published 2024-07-01
    “…The objective quantification of voice acoustic parameters is used for the diagnosis, monitoring, and treatment of voice disorders. …”
    Get full text
    Article
  5. 1145

    An ultrasonic-AI hybrid approach for predicting void defects in concrete-filled steel tubes via enhanced XGBoost with Bayesian optimization by Shuai Wan, Shipan Li, Zheng Chen, Yunchao Tang

    Published 2025-07-01
    “…SHAP (SHapley Additive exPlanations) analysis revealed that sound velocity, sound time, acoustic amplitude, concrete strength, and fly ash content were the most influential features for model predictions. …”
    Get full text
    Article
  6. 1146

    Assessing the Hardness of Quenched Medium Steel Using an Ultrasonic Nondestructive Method by Shao-Yi Hsia, Yu-Tuan Chou

    Published 2015-01-01
    “…Our experimental results show that a smaller average grain size as well as higher hardness can be obtained from higher quenching temperatures. Faster acoustic velocities and slower attenuation coefficients are caused by higher material hardness. …”
    Get full text
    Article
  7. 1147

    Failure Mechanism of a Coal-Rock Combined Body with Inclinations of Structural Planes and a Calculation Model for Impact Energy by Yi-Chao Zhao, Ming-Shi Gao, Yong-Liang He, Dong Xu

    Published 2019-01-01
    “…Based on the theory of particle mechanics, a calculation model for impact energy in a CR combined body with inclinations was established and then verified by using monitored acoustic emission (AE) data. The test results showed that inclination affected mechanical properties and failure characteristics of the CR combined body, i.e., the larger the inclination, the lower the strength and impact energy in the CR combined body and the lower the level of damage. …”
    Get full text
    Article
  8. 1148

    Study on Ultrasonic Response to Mechanical Structure of Coal under Loading and Unloading Condition by Xiaofei Liu, Xiaoran Wang, Enyuan Wang, Zhentang Liu, Xiaoyang Xu

    Published 2017-01-01
    “…When it progresses from the linear elastic stage to the elastic plastic stage, the material inside the coal distorts and fractures more drastically, the inner defects are fully developed, and the acoustic parameters decrease significantly. Therefore, the corresponding measures should be adapted to reduce the loading stress before the coal is loaded to its critical stress level.…”
    Get full text
    Article
  9. 1149

    Ultrasonic localization method based on receiver array optimization schemes by Xiaonan Luo, Hucheng Wang, Suqing Yan, Jianming Liu, Yanru Zhong, Rushi Lan

    Published 2018-11-01
    “…The other problem is that the sound intensity of some local corner points are obviously stronger than those points near the acoustic source, which may confuse the ultrasonic receivers and bring significant differences in measurement errors. …”
    Get full text
    Article
  10. 1150

    Microultrasound Molecular Imaging of Vascular Endothelial Growth Factor Receptor 2 in a Mouse Model of Tumor Angiogenesis by Joshua J. Rychak, James Graba, Alison M.Y. Cheung, Bina S. Mystry, Jonathan R. Lindner, Robert S. Kerbel, F. Stuart Foster

    Published 2007-09-01
    “…The B-mode (two-dimensional mode) acoustic signal from microbubbles bound to the molecular target was determined by an ultrasound-based destruction-subtraction scheme. …”
    Get full text
    Article
  11. 1151

    Review of Energy Harvesters Utilizing Bridge Vibrations by Farid Ullah Khan, Iftikhar Ahmad

    Published 2016-01-01
    “…In bridge environment, several forms of energy are available for operating WASNs that include wind, solar, acoustic, and vibration energy. However, only bridge vibration has the tendency to be utilized for embedded WASNs application in bridge structures. …”
    Get full text
    Article
  12. 1152

    Role of the ventral portion of intermediate arcopallium in stability of female Bengalese finch song preferences by Austin Coulter, Jonathan F. Prather

    Published 2025-01-01
    “…Songbirds provide an excellent model to investigate the neural mechanisms of decision making, because females rely on acoustic signals called songs as important stimuli in directing their mate choice. …”
    Get full text
    Article
  13. 1153

    Research on Improvement of Spectrum Efficiency of Spread Spectrum OFDM Communication Scheme for Cruising Sensor Network by Yuan Wang, Zhoumo Zeng, Yibo Li, Wen Zhang, Hao Feng, Shijiu Jin

    Published 2014-11-01
    “…A reliable and high-speed underwater acoustic (UWA) communication scheme is necessary for node-to-node communication. …”
    Get full text
    Article
  14. 1154

    Analysis of Slotted Tooth Switched Reluctance Motors for Electric Vehicle Applications by Mohamed A. Abdel Tawab, Hamdy Shatla, M. Bahy

    Published 2024-01-01
    “…Switched reluctance motors’ (SRMs) implementation in electric vehicle drives are widely increasing due to several merits, such as a wide speed range, high torque density, and rare earth-free characteristics, but it also has some drawbacks, such as more torque ripples, acoustic noise, and vibration, that hinder its usage in electrical vehicle applications. …”
    Get full text
    Article
  15. 1155

    Complexity: a new paradigm for fracture mechanics by S. Puzzi, A. Carpinteri

    Published 2009-10-01
    “…Further examples will deal with criticality in the acoustic emissions of damaged structures and with scaling in the time-to-failure (Carpinteri et al. [9]). …”
    Get full text
    Article
  16. 1156

    Thrush nightingales adjust the peak frequency and structure of their songs in response to different types of experimental noise by Michał Budka

    Published 2025-01-01
    “…However, little attention has been given to experimentally examining how the structure of the acoustic signal changes in response to various kinds of disturbances in the soundscape. …”
    Get full text
    Article
  17. 1157

    Influences of roughness and filling degree on the shear strength and damage evolution characteristics of cement-filled joints. by Zhilin Shu, Yang Liu, Yicheng Ye, Weiqi Wang, Binyu Luo, Jinpeng Jia

    Published 2025-01-01
    “…Pressure-shear tests of cement-filled joints were carried out. Combined with the acoustic emission (AE) technique, the effects of normal stress, roughness and filling degree on the shear strength, damage morphology and damage evolution of cement-filled joints were investigated. …”
    Get full text
    Article
  18. 1158

    The effects of implicit corrective feedback on production of lexical stress in L2 English by Özgür Parlak

    Published 2024-09-01
    “…The intervention group received a recast upon producing target words with misplaced primary stress, whereas the control group did not receive any corrective feedback. The results of acoustic analyses, which focused on syllable duration, intensity, and pitch, indicated a positive relationship between recasts and development of primary stress placement. …”
    Get full text
    Article
  19. 1159

    Understanding Multiferroic Hexagonal Manganites by Static and Ultrafast Optical Spectroscopy by Yu Ting Wang, Chih Wei Luo, Takayoshi Kobayashi

    Published 2013-01-01
    “…Moreover, the coherent optical and acoustic phonons were observed on optical pump-probe spectroscopy. …”
    Get full text
    Article
  20. 1160

    Modeling Reader's Emotional State Response on Document's Typographic Elements by Dimitrios Tsonos, Georgios Kouroupetroglou

    Published 2011-01-01
    “…This novel model can contribute to the automated reader's emotional state extraction in order, for example, to enhance the acoustic rendition of the documents, utilizing text-to-speech synthesis.…”
    Get full text
    Article