Acoustical Physics最新文献_第2页

Estimation of the Horizontal Directivity Pattern of a Seismic Source Based on Spatial Measurements on the Shelf 基于陆架空间测量的震源水平指向性模式估计

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2026-10-06 DOI: 10.1134/S1063771025601402

D. S. Manulchev, V. E. Nechayuk, A. N. Rutenko

{"title":"Estimation of the Horizontal Directivity Pattern of a Seismic Source Based on Spatial Measurements on the Shelf","authors":"D. S. Manulchev, V. E. Nechayuk, A. N. Rutenko","doi":"10.1134/S1063771025601402","DOIUrl":"10.1134/S1063771025601402","url":null,"abstract":"Based on spatial acoustic measurements carried out on the relatively shallow northeastern shelf off Sakhalin Island during seismic surveys, estimates of the horizontal directivity pattern of the seismic vessel’s source array were constructed at distances of 1.2, 2.4, and 4.6 km in three frequency bands: 10–350, 10–70, and 70–350 Hz. The estimation methodology measures the energy of seismoacoustic pulse signals propagating in the water column along a series of acoustic paths with nearly identical seabed profiles. In the 70–350 Hz band, signal energy is primarily carried by water-column normal modes, and the resulting directivity pattern exhibits clear directionality closely matching the theoretical pattern calculated for deep-water conditions. In the low-frequency band (10–70 Hz), the directivity pattern shows no dependence on the azimuthal angle. Both experimental and theoretical analyses demonstrate that estimation of the directivity pattern in the 10–70 Hz band may be inaccurate when there are spatial heterogeneities in the seabed, specifically variations in the compressional-wave speed . These findings are directly relevant to assessing the acoustic impact of seismic surveys in coastal shelf regions.","PeriodicalId":455,"journal":{"name":"Acoustical Physics","volume":"72 2","pages":"157 - 171"},"PeriodicalIF":0.9,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149098145","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

Fast Dynamics of Longitudinal and Shear Elastic Waves in a 3D-Printed Photopolymer Sample 三维打印光聚合物样品中纵向和剪切弹性波的快速动力学

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2026-07-01 DOI: 10.1134/S106377102660052X

E. S. Mikhalev, A. I. Kokshaiskii, N. I. Odina, A. I. Korobov, P. K. Bezusov

引用次数: 0

Asymptotic Evaluation of a Three-Dimensional Fourier Integral Describing Acoustic Radiation from a Source Moving along a Corrugated Surface 描述沿波纹表面移动的声源声辐射的三维傅立叶积分的渐近计算

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2026-07-01 DOI: 10.1134/S1063771025601232

A. Yu. Laptev, A. V. Shanin

引用次数: 0

Combined Effect of Water Stratification and Heterogeneous Bottom Structure on the Low-Frequency Noise Field in a Shallow-Water Waveguide in the Kara Sea 水体分层和非均匀底结构对喀拉海浅水波导低频噪声场的联合影响

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2026-07-01 DOI: 10.1134/S1063771025601074

S. D. Bodjona, D. D. Sidorov, Yu. V. Nazarenko, V. G. Petnikov, A. A. Lunkov

{"title":"Combined Effect of Water Stratification and Heterogeneous Bottom Structure on the Low-Frequency Noise Field in a Shallow-Water Waveguide in the Kara Sea","authors":"S. D. Bodjona, D. D. Sidorov, Yu. V. Nazarenko, V. G. Petnikov, A. A. Lunkov","doi":"10.1134/S1063771025601074","DOIUrl":"10.1134/S1063771025601074","url":null,"abstract":"The spectral components (100 and 500 Hz) of the low-frequency noise field generated by near-surface sources in a shallow-water acoustic waveguide in the Kara Sea with depths ranging from 22 to 53 m are analyzed through numerical experiments for various types of water layer stratification. Three typical sound speed profiles in water taken from the World Ocean Database were considered: (1) with a negative gradient, (2) with a positive gradient, and (3) a nearly depth-independent profile. Three-dimensional spatial heterogeneities of the upper bottom sediment layer were taken into account. Calculations were performed using the wide-angle parabolic equation method and the normal mode method. The azimuthal dependence of sound propagation losses was estimated for a single near-surface source (vessel). For distributed wind-driven noise sources, the effective radius of the source region contributing to the noise field at a given receiver position was determined. Averaged spatial characteristics of the wind-driven noise field were obtained, and the modal composition of the noise was analyzed depending on the sound speed profile in water. It was demonstrated that the noise level in the selected region of the Kara Sea is determined primarily by the characteristics of the bottom sediments at the measurement site. Changing hydrological conditions lead to variations in propagation loss of up to 24 dB over 5 km for a single vessel as well as changes in the wind-driven noise level by 1–2 dB and variations in the radius of the noise domain of up to 2 km. The amplitude of the lowest modal components of wind noise can change by an order of magnitude.","PeriodicalId":455,"journal":{"name":"Acoustical Physics","volume":"72 1","pages":"54 - 67"},"PeriodicalIF":0.9,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148349703","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

Feasibility of Achieving Shock-Wave Focusing Regimes Using High-Frequency Miniature Ultrasound Sources 利用高频微型超声源实现冲击波聚焦的可行性

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2026-07-01 DOI: 10.1134/S1063771025601268

M. M. Karzova, L. A. Papikyan, V. A. Khokhlova

{"title":"Feasibility of Achieving Shock-Wave Focusing Regimes Using High-Frequency Miniature Ultrasound Sources","authors":"M. M. Karzova, L. A. Papikyan, V. A. Khokhlova","doi":"10.1134/S1063771025601268","DOIUrl":"10.1134/S1063771025601268","url":null,"abstract":"Current high-intensity focused ultrasound (HIFU) methods primarily target biological tissue at depths of several centimeters, utilizing frequencies in the 0.7–2 MHz range. Of particular interest are nonlinear operational regimes, in which the wave profile within the ultrasound transducer’s focal region contains high-amplitude shock fronts. These regimes significantly broaden the spectrum of bioeffects achievable through ultrasound exposure. Shock-wave regimes hold great promise for the selective treatment of superficial skin layers at millimeter-scale depths. This approach requires increasing the ultrasound frequency to 4–10 MHz and developing miniature transducers with diameters of 15–20 mm. However, the feasibility of generating shock fronts with such transducers at relatively modest power levels (~100 W), attainable under practical conditions, has not yet been studied. In this work, numerical modeling was conducted to investigate this problem. The results demonstrate that shock front amplitudes up to 130 MPa can be achieved at the focus in skin tissue at input powers below 120 W using 4 MHz transducers with a diameter of 20 mm and a radius of curvature between 16 and 20 mm. Similarly, at 7 MHz, equivalent effects can be produced with comparable transducer parameters and input powers of less than 40 W. These findings suggest the feasibility of implementing shock wave-based methods for superficial skin treatments—such as those used in aesthetic medicine, dermatology, and plastic surgery—for scar tissue treatment—as well as in various other clinical contexts.","PeriodicalId":455,"journal":{"name":"Acoustical Physics","volume":"72 1","pages":"14 - 28"},"PeriodicalIF":0.9,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148349717","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

Erratum to: Study on the Sensitivity of Decaying Wave Propagating Through a Medium with No Surface Traction 对：无表面牵引力介质中衰减波传播灵敏度的研究

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2026-07-01 DOI: 10.1134/S1063771026550014

Maaz Ali Khan, Adnan Jahangir, Emad E. Mahmoud, Mohammed Almuzaini, Usman Riaz, Afzal Rahman

引用次数: 0

Effect of Interference of Weakly Divergent Beams on the Spatiotemporal Structure of an Acoustic Field in an Underwater Sound Channel 弱发散波束干涉对水声通道声场时空结构的影响

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2026-07-01 DOI: 10.1134/S1063771025600949

Yu. V. Petukhov, E. L. Borodina, A. I. Malekhanov

引用次数: 0

Passive Methods for Determining the Distance to a Noise Source: Current State of the Art 确定噪声源距离的被动方法：目前的技术状况

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2026-07-01 DOI: 10.1134/S1063771026600592

A. I. Mashoshin

引用次数: 0

Acoustoelectronic Enzymatic Methyl Alcohol Vapor Biosensor Based on a Thin Langmuir-Blodgett Film with Alcohol Oxidase 基于酒精氧化酶Langmuir-Blodgett薄膜的声电子酶促甲醇蒸汽生物传感器

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2026-07-01 DOI: 10.1134/S1063771026600622

I. A. Gorbachev, A. V. Smirnov, V. I. Anisimkin, V. V. Kolesov, Z. Qian, T. Ma, I. E. Kuznetsova

{"title":"Acoustoelectronic Enzymatic Methyl Alcohol Vapor Biosensor Based on a Thin Langmuir-Blodgett Film with Alcohol Oxidase","authors":"I. A. Gorbachev, A. V. Smirnov, V. I. Anisimkin, V. V. Kolesov, Z. Qian, T. Ma, I. E. Kuznetsova","doi":"10.1134/S1063771026600622","DOIUrl":"10.1134/S1063771026600622","url":null,"abstract":"Methanol is one of the highly toxic agents that pose a danger in both liquid and gas phases. Its presence in food products, such as adulterated alcoholic beverages, juices, and canned goods, can lead to severe poisoning with a lethal outcome. An acoustoelectronic biosensor was developed based on a surface acoustic wave (SAW) delay line in 128YX LiNbO3 with an operating frequency of 115.6 MHz with a Langmuir–Blodgett sensor film containing immobilized molecules of the enzyme alcohol oxidase. The developed sensor demonstrated an increased response to methyl alcohol vapors at concentrations exceeding 20 g/m3. The maximum attenuation in the presence of methanol vapors was 2.25 dB/mm, which was 4 times higher than in the presence of ethanol vapors at the same concentration. The maximum value of the relative change in the SAW phase in the presence of methanol was 600 ppm, while for ethanol it was 350 ppm. The increased sensitivity to methanol vapors is explained by the specific interaction of the enzyme alcohol oxidase, which oxidizes methanol to formaldehyde and hydrogen peroxide in the sensor film. The results obtained demonstrate the possibility of creating compact and selective sensors for the rapid analysis of methanol in food products, which opens prospects for their application to increase the efficiency of product quality control and prevent cases of poisoning.","PeriodicalId":455,"journal":{"name":"Acoustical Physics","volume":"72 1","pages":"43 - 53"},"PeriodicalIF":0.9,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148349700","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

Passive Acoustic Thermometry as a Method for Monitoring the Temperature of Soft Tissues of the Lower Extremities after Physical Exercise: A Pilot Study 被动声测温作为一种监测运动后下肢软组织温度的方法：一项初步研究

IF 0.9 4区物理与天体物理

Acoustical Physics Pub Date : 2026-07-01 DOI: 10.1134/S1063771026600075

A. A. Anosov, N. V. Granovsky, I. I. Terekhov, E. O. Lebedenko, A. V. Erofeev, I. A. Popova, M. I. Shcherbakov, E. F. Nazarov, R. V. Belyaev, A. D. Mansfeld, T. M. Vakhidov

{"title":"Passive Acoustic Thermometry as a Method for Monitoring the Temperature of Soft Tissues of the Lower Extremities after Physical Exercise: A Pilot Study","authors":"A. A. Anosov, N. V. Granovsky, I. I. Terekhov, E. O. Lebedenko, A. V. Erofeev, I. A. Popova, M. I. Shcherbakov, E. F. Nazarov, R. V. Belyaev, A. D. Mansfeld, T. M. Vakhidov","doi":"10.1134/S1063771026600075","DOIUrl":"10.1134/S1063771026600075","url":null,"abstract":"In a pilot study, the time dependences of the acoustic brightness temperature were measured and reconstructed using the equation of thermal conductivity with blood flow of the distribution of the temperature of the thigh muscles of two physically active representatives of the general population, who, after the end of intense physical activity, underwent a hypothermia procedure in which the lower extremities were immersed in water at a temperature of 10.5 ± 0.5°C. The average measured acoustic brightness temperatures and the rates of their decrease were 34.4 ± 1.1, 33.5 ± 1.5°C and 0.30 ± 0.04 and 0.10 ± 0.02°C/min, respectively. It was shown that only the near-surface temperature of the hip decreased significantly (by ~20°C, at a depth of up to 2–3 cm. At a depth of more than 5 cm, the temperature practically did not differ from 37°C. The acoustic brightness temperature calculated for the hips agreed quite well with the experimental data (the standard deviation of the results was 0.2 K when averaged over 10 s). An experiment was conducted with a phantom, the temperature inside which was independently controlled. It has been shown that joint measurements of the surface temperature of the thighs by IR thermometry cannot provide reliable information about the depth temperature. The study showed that passive acoustic thermometry can be used to monitor water hypothermia in athletes.","PeriodicalId":455,"journal":{"name":"Acoustical Physics","volume":"72 1","pages":"35 - 42"},"PeriodicalIF":0.9,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148349718","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