Acoustical Physics最新文献_第2页

Effect of Bottom Properties in Acoustic Distance Measurement on the Shallow-Water Arctic Shelf 浅水北极陆架声距离测量中底部特性的影响

IF 1.2 4区物理与天体物理

Acoustical Physics Pub Date : 2025-09-09 DOI: 10.1134/S106377102560038X

D. D. Sidorov, V. G. Petnikov

引用次数: 0

Sensitivity of the Amplitude of a Rayleigh-Type Wave on a Surface to Changes in the Parameters of an Inhomogeneous Medium 表面上瑞利波振幅对非均匀介质参数变化的敏感性

IF 1.2 4区物理与天体物理

Acoustical Physics Pub Date : 2025-09-09 DOI: 10.1134/S1063771025600494

R. A. Zhostkov, D. A. Zharkov

引用次数: 0

Individual Differences in Auditory Feedback Control of Speech in Noise 噪声环境下言语听觉反馈控制的个体差异

IF 1.2 4区物理与天体物理

Acoustical Physics Pub Date : 2025-09-09 DOI: 10.1134/S1063771024602577

A. M. Lunichkin, I. G. Andreeva, L. G. Zaitseva, E. A. Ogorodnikova

{"title":"Individual Differences in Auditory Feedback Control of Speech in Noise","authors":"A. M. Lunichkin, I. G. Andreeva, L. G. Zaitseva, E. A. Ogorodnikova","doi":"10.1134/S1063771024602577","DOIUrl":"10.1134/S1063771024602577","url":null,"abstract":"<div>The study tested the hypothesis that speech changes in noise (the Lombard effect) may have significant individual differences, including those due to the gender and age of the speakers. For this, the characteristics of Lombard speech were studied for 12 speakers (6 men, 6 women; age groups: 25–35 and 55–59 age). The study used recordings of speech consisting of disyllabic words with stressed vowel sounds [a], [i], [u] of Russian speech in silence and in multitalker noise at levels of 60 and 72 dB(A). Changes in the fundamental frequency (ΔF0) and intensity (ΔI) of the voice in noise compared to silence were determined. When comparing groups of men and women, significant differences in the change of F0 in noise of 60 dB are shown. Differences in vowel characteristics between the young and middle-aged speaker groups were found for ΔF0 and ΔI in 72 dB noise. Regardless of gender and age, two types of speakers were identified, differing in the ΔF0 and ΔI values at both noise levels. Type 1 speakers in multitalker noise increased F0 by 23 and 57 Hz, for levels of 60 and 72 dB, respectively, and type 2 speakers, by 16 and 23 Hz. At two levels of noise masking, the voice intensity of type 1 speakers increased by 8 and 16 dB; the voice intensity of type 2 speakers, by 6 and 10 dB. The obtained differences may be determined by the greater influence of voluntary control, with an increase in the noise level in type 2 speakers we have identified.</div>","PeriodicalId":455,"journal":{"name":"Acoustical Physics","volume":"71 3","pages":"467 - 478"},"PeriodicalIF":1.2,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145021635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research of a Stepped Ultrasonic Radiator 阶梯式超声辐射器的研究

IF 1.2 4区物理与天体物理

Acoustical Physics Pub Date : 2025-09-09 DOI: 10.1134/S106377102460270X

N. Li, X. P. He, Y. Yuan

{"title":"Research of a Stepped Ultrasonic Radiator","authors":"N. Li, X. P. He, Y. Yuan","doi":"10.1134/S106377102460270X","DOIUrl":"10.1134/S106377102460270X","url":null,"abstract":"Sound field and radiation impedance are crucial acoustic performance parameters. Sound field calculation concerns sound propagation from a source and pertains to practical application problems within a specific environment. In contrast, radiation impedance is associated with the matching of the radiating elements with a circuit. Free boundary stepped radiators with high directional properties have significant application potential in the field of high-power gas medium ultrasonics. This study proposes a simulation for the computational estimation of the radiation field and impedance of stepped radiators based on the Rayleigh method. The axial sound pressure and directivity of the rectangular stepped radiator are calculated theoretically. At the same time, the radiation impedance is calculated. The results of the sound field test and radiation impedance calculations verified the validity of the proposed method. Thus, a practical and efficient approach to the analysis of the acoustic performance of arbitrary sound radiator was realized. The proposed method offers valuable insights and addresses a crucial gap in understanding these parameters for diverse radiator configurations.","PeriodicalId":455,"journal":{"name":"Acoustical Physics","volume":"71 3","pages":"312 - 325"},"PeriodicalIF":1.2,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S106377102460270X.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145021634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental and Numerical Investigation of Sound Radiation and Scattering by Shells in Water 水中壳体声辐射与散射的实验与数值研究

IF 1.2 4区物理与天体物理

Acoustical Physics Pub Date : 2025-09-09 DOI: 10.1134/S1063771024602590

A. S. Ivanenkov, N. A. Kutuzov, O. A. Potapov, A. A. Rodionov, M. B. Salin, I. A. Usacheva

引用次数: 0

On a Method for Classifying Hydroacoustic Radiation Sources at the Output of Adaptive Spatial Processing 自适应空间处理输出水声辐射源分类方法研究

IF 1.2 4区物理与天体物理

Acoustical Physics Pub Date : 2025-09-09 DOI: 10.1134/S1063771025600482

G. S. Malyshkin

引用次数: 0

Effect of the Diameter of the Central Opening on Nonlinear Acoustic Field Characteristics of High-Intensity Focused Ultrasound Transducers 中心开口直径对高强度聚焦超声换能器非线性声场特性的影响

IF 1.2 4区物理与天体物理

Acoustical Physics Pub Date : 2025-09-09 DOI: 10.1134/S1063771024602681

F. A. Nartov, M. M. Karzova, V. A. Khokhlova

{"title":"Effect of the Diameter of the Central Opening on Nonlinear Acoustic Field Characteristics of High-Intensity Focused Ultrasound Transducers","authors":"F. A. Nartov, M. M. Karzova, V. A. Khokhlova","doi":"10.1134/S1063771024602681","DOIUrl":"10.1134/S1063771024602681","url":null,"abstract":"<div>A number of novel noninvasive surgical technologies utilizing high-intensity focused ultrasound (HIFU) are based on using nonlinear acoustic effects that lead to distortion of the wave when it propagates from an ultrasound transducer and formation of shock fronts at the focus. Typically, such transducers that generate a high-power ultrasound beam, have near axially symmetric shape with a central circular opening to accommodate a diagnostic probe for visualization purposes. To predict the focal field parameters of such transducer geometries, an equivalent source model of a spherical segment is convenient, as nonlinear effects in its field are well studied. The equivalent source parameters (diameter, focal length, and amplitude) are optimized to closely approximate the focal region of the original transducer along the axial coordinate. This paper investigates the effect of the central opening size on the nonlinear field characteristics and applicability of the equivalent source model for a typical therapeutic ultrasound transducer with a frequency of 1 MHz and F# = 0.9. It is demonstrated that the size of the central opening significantly affects the degree of nonlinear waveform distortion in the focal region, and the equivalent source model can be applied only when the diameter of the central opening is less than 20% of the transducer diameter.</div>","PeriodicalId":455,"journal":{"name":"Acoustical Physics","volume":"71 3","pages":"346 - 356"},"PeriodicalIF":1.2,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1134/S1063771024602681.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145021710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Wave Stop Bands in a Double-Periodic Elastic Waveguide from Bodies Connected to Each Other by Thin Rods 用细杆连接的双周期弹性波导中的阻波带

IF 1.2 4区物理与天体物理

Acoustical Physics Pub Date : 2025-08-18 DOI: 10.1134/S1063771024602619

S. A. Nazarov

引用次数: 0

Numerical Simulation of Volumetric Ultrasound Heating of Biological Tissue with Surface Cooling 表面冷却下生物组织体积超声加热的数值模拟

IF 1.2 4区物理与天体物理

Acoustical Physics Pub Date : 2025-08-18 DOI: 10.1134/S1063771025600172

P. A. Pestova, A. N. Rybyanets, O. A. Sapozhnikov, M. M. Karzova, P. V. Yuldashev, S. A. Tsysar, L. M. Kotelnikova, I. A. Shvetsov, V. A. Khokhlova

{"title":"Numerical Simulation of Volumetric Ultrasound Heating of Biological Tissue with Surface Cooling","authors":"P. A. Pestova, A. N. Rybyanets, O. A. Sapozhnikov, M. M. Karzova, P. V. Yuldashev, S. A. Tsysar, L. M. Kotelnikova, I. A. Shvetsov, V. A. Khokhlova","doi":"10.1134/S1063771025600172","DOIUrl":"10.1134/S1063771025600172","url":null,"abstract":"<div>One of the undesirable effects of using ultrasound for extracorporeal therapy is skin overheating, caused by both ultrasound absorption and contact with the heated surface of the acoustic transducer. To suppress this effect, a forcibly cooled contact medium can be placed between the skin and the irradiating surface. A novel ultrasound applicator implementing this approach has recently been proposed and developed at Southern Federal University. It uses a rectangular piezoelectric transducer bonded to an aluminum plate for volumetric heating of subcutaneous biological tissue. The plate is cooled by circulating cold water through laterally drilled channels. This article presents a numerical algorithm for calculating the three-dimensional temperature field in tissue during the operation of this applicator. The simulation was based on the inhomogeneous heat equation. Experimental acoustic holography data obtained for the developed transducer were used to calculate the heat sources in tissue. An example of heating bovine liver tissue ex vivo is considered, with irradiation times ranging from several seconds to several min. The simulation results were compared with experimental data on tissue thermal ablation at an acoustic power of 12 W and an ultrasound frequency of 6.96 MHz. It is shown that the combination of thermal tissue exposure and contact boundary cooling allows for volumetric tissue heating with a temperature maximum at a depth of 8 to 15 mm, while maintaining a negligible temperature change at depths up to 2–3 mm.</div>","PeriodicalId":455,"journal":{"name":"Acoustical Physics","volume":"71 2","pages":"190 - 200"},"PeriodicalIF":1.2,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144861398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation of Sound Reflection and Transmission through an Elastic Layer with Inclusions Using the Finite Element Method 用有限元法研究含夹杂弹性层中声音的反射和传播

IF 1.2 4区物理与天体物理

Acoustical Physics Pub Date : 2025-08-18 DOI: 10.1134/S1063771024602127

I. A. Usacheva, I. A. V’yushkina, P. I. Korotin, M. B. Salin

引用次数: 0