Adsorption of Methylene Blue in Acoustic and Magnetic Fields by Porous Carbon Derived from Sewage Sludge by Wenzhong Shen, Qingjie Guo, Xiangping Yang, Yihong Liu, Yanru Song, Jian Cheng

“…The adsorption rate and capacity of the porous carbon towards Methylene Blue could be improved by the use of acoustic and magnetic fields. The best adsorption behaviour was displayed when the acoustic field frequency was 50 Hz and the magnetic field strength was 485 mT.…”
Get full text

RESEARCH ON ACOUSTIC RADIATION CHARACTERISTIC OF SAW BLADE CUTTING SYSTEM BASED ON MULTI-FIELD COUPLING by TIAN YongJun, DUAN GuoLin, YAO Tao, GANG JianHua, ZHANG E

“…In order to study the distribution of sound field and quantitative estimates of the cutting noise,a multiphysics coupling model was constructed.Firstly,the vibration response of the fluid structure interaction system was extracted under multibody dynamic contact by using method of center difference.Moreover,a co-simulation method for the acoustic radiation model based on the boundary element method and acoustic coupling theory was presented.On this basis,a structure acoustic coupling model was established to calculate the sound pressure according to the results of the vibration response previously calculated.Then,the sound radiation in time domain characteristics and domain characteristics with the coupled system in half the space is studied.On the basis of the FSI theory,the computing results of the one-way coupling method and two-way coupling method are compared.Finally,the effects of radiating area influence on the sound power is discussed,makes clear the primarily radiation area.As compared with the experimentation results,the multi-field coupling model established in this paper about cutting noise of the saw blade is correct and feasible.…”
Get full text

Retracted: Rural Acoustic Landscape Analysis Based on Segmentation and Extraction of Spectral Image Feature Information by Applied Bionics and Biomechanics

Get full text

Wing Morphometry and Acoustic Signals in Sterile and Wild Males: Implications for Mating Success in Ceratitis capitata by João Maria Gomes Alencar de Souza, Paulo Augusto de Lima-Filho, Wagner Franco Molina, Lúcia Maria de Almeida, Milson Bezerra de Gouveia, Francisco Pepino de Macêdo, Raul Alberto Laumann, Beatriz Aguiar Jordão Paranhos

“…This study investigated the interaction between mating success and morphometric variation in the wings and the production of acoustic signals among three male groups of Ceratitis capitata (Wiedemann): (1) wild males, (2) irradiated with Co-60 (steriles), and (3) irradiated (steriles) and treated with ginger oil. …”
Get full text

A time-domain finite element formulation of the equivalent fluid model for the acoustic wave equation by Maurerlehner Paul, Mayrhofer Dominik, Kaltenbacher Manfred, Schoder Stefan

“…The homogenized fluid’s acoustic behavior is thereby described by complex-valued, frequency-dependent acoustic material parameters. …”
Get full text

Low frequency acoustic source imaging method based on coprime position non-synchronous measurement by Juan WEI, Yutao HE, Fangli NING

Subjects: “…acoustic imaging…”
Get full text

Publisher Correction: Speech-based personality prediction using deep learning with acoustic and linguistic embeddings by Martin Lukac

Get full text

Acoustic Emission Characteristics and Damage Evolution Analysis of Sandstone under Three-Point Bending Test by Tao Qin, Chen Jiang, Yanwei Duan, Yiwei Wang, Chao Ju

“…By using stress loading system and acoustic emission technology, the acoustic emission characteristic parameters of the sandstone fracture process were analyzed, the precursory information of rock bending fracture was explored, and the evolution law of sandstone damage based on acoustic emission characteristics was obtained. …”
Get full text

Piezoelectric Sensors Placement Strategy for Accurate Acoustic Data Evaluation in Cavitation-induced Erosion Processes by A. Nasseroleslami, A. Sarreshtehdari, M. S. Seif

Get full text

Study on the Precursors of Coal-Rock Fracture Based on the Maximum Lyapunov Exponent of Acoustic Emission Parameters by Guoqiang Cheng, Xiaohui Sun, Jiangong Li

“…In this paper, the relationship between acoustic emission (AE) parameters and coal-rock fracture is investigated by using the discrete element particle flow simulation software PFC. …”
Get full text

Longitudinal Changes in Pitch-Related Acoustic Characteristics of the Voice Throughout the Menstrual Cycle: Observational Study by Jaycee Kaufman, Jouhyun Jeon, Jessica Oreskovic, Anirudh Thommandram, Yan Fossat

Get full text

A Novel Deep Sparse Filtering Method for Intelligent Fault Diagnosis by Acoustic Signal Processing by Guowei Zhang, Jinrui Wang, Baokun Han, Sixiang Jia, Xiaoyu Wang, Jingtao He

“…Increased attention has been paid to research on intelligent fault diagnosis under acoustic signals. However, the signal-to-noise ratio of acoustic signals is much lower than vibration signals, which increases the difficulty of signal denoising and feature extraction. …”
Get full text

Investigation on the Effect of Underwater Acoustic Pressure on the Fundamental Mode of Hollow-Core Photonic Bandgap Fibers by Adel Abdallah, Zhang Chaozhu, Zhong Zhi

“…Besides, we investigate, for the first time to our knowledge, the effect of underwater acoustic pressure on the effective area Aeff and the numerical aperture (NA) of the HC-PBF.…”
Get full text

Multivariate Prediction Model of Strength and Acoustic Emission Energy considering Parameter Correlation of Coal or Rock by Shuncai Li, Daquan Li, Nong Zhang

“…Due to the heterogeneity of the internal structure and the different external loading conditions, the mechanical and acoustic emission (AE) characteristic parameters of coal and rock are discrete in the process of loading until failure, and many repeated and destructive tests need to be completed to obtain the performance parameters. …”
Get full text

Analysis of coupled acoustic and drift modes leading to modons in Maxwellian and non-Maxwellian dusty plasma by Zahida Ehsan, Nazia Batool, V. M. Lashkin

“…Linear and nonlinear acoustic and drift waves in a confined inhomogeneous dusty plasma are investigated here. …”
Get full text

Valve Fault Diagnosis in Internal Combustion Engines Using Acoustic Emission and Artificial Neural Network by S. M. Jafari, H. Mehdigholi, M. Behzad

“…This paper presents the potential of acoustic emission (AE) technique to detect valve damage in internal combustion engines. …”
Get full text

Dynamic Property Investigation of Sandwich Acoustic Black Hole Beam with Clamped-Free Boundary Condition by Xiaofei Du, Dacheng Huang, Jianrun Zhang

“…The geometric parameters of the acoustic black hole (ABH) structure are changed in power exponent, and this feature can be used to control the flexural wave to achieve energy concentration, vibration attenuation, or noise reduction. …”
Get full text

The use of acoustic emissions technique in the monitoring of fracturing in concrete using soundless chemical demolition agent by Vassilios Saltas, Despoina Peraki, Filippos Vallianatos

Subjects: “…acoustic emissions…”
Get full text

Research on orthogonal multi-carrier underwater acoustic communication system based on fractional Fourier transform by Yi-lin WANG, Yun CHEN, Jing-wei YIN, Ping CAI, Yi-meng ZHANG

Subjects: “…underwater acoustic communication…”
Get full text

ARS: An Adaptive Retransmission Scheme for Contention-Based MAC Protocols in Underwater Acoustic Sensor Networks by Thi-Tham Nguyen, Seokhoon Yoon

“…Due to the limited capacity and high propagation delay of underwater communication channels, contention-based media access control (MAC) protocols suffer from a low packet delivery ratio (PDR) and a high end-to-end (E2E) delay in underwater acoustic sensor networks due to the reliance on packet retransmission for reliable data delivery. …”
Get full text