Journal of the Acoustical Society of America最新文献_第3页

A hybrid methodology for uncertainty analysis of vibration response in fluid-filled pipes. 充液管道振动响应不确定性分析的混合方法。

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-07-01 DOI: 10.1121/10.0037081

Zhen Li, Bilong Liu, Jianghai Wu, Andrew Peplow

{"title":"A hybrid methodology for uncertainty analysis of vibration response in fluid-filled pipes.","authors":"Zhen Li, Bilong Liu, Jianghai Wu, Andrew Peplow","doi":"10.1121/10.0037081","DOIUrl":"https://doi.org/10.1121/10.0037081","url":null,"abstract":"Reducing vibration and noise in fluid-filled pipeline systems is critical for enhancing the acoustic stealth of underwater vehicles. However, uncertainties inherent in the complex vibro-acoustic response and transmission of these systems render traditional deterministic methods inadequate. To address this, this paper proposes a hybrid methodology, named ISM-PCE, combining the impedance synthesis method (ISM) and polynomial chaos expansion (PCE), to efficiently estimate the low-order statistical moments of the frequency response function (FRF) of pipelines, validated by experiments and numerical simulations on homogeneous straight pipes. Results show that the normal ISM-PCE accurately estimates the mean FRF under single dimensional parameter (pipe inner diameter) uncertainty, but its variance estimation accuracy is insufficient in the resonance frequency band. Therefore, a stochastic frequency transformation method was introduced, significantly improving variance estimation accuracy and enabling successful multiple dimensional parameters uncertainty analysis. The results demonstrate that the normal ISM-PCE and its improved variant provide an efficient and accurate methodology for uncertainty quantification of vibration responses in fluid-filled pipeline systems. Although only fluid-filled straight pipes have been analyzed in this paper, the proposed methodology is generalizable and applicable to more complex fluid-filled pipeline systems.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":"158 1","pages":"84-98"},"PeriodicalIF":2.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144553854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

A characteristic non-reflective boundary for low Mach number flow-induced noise. 低马赫数流致噪声的特征非反射边界。

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-07-01 DOI: 10.1121/10.0037076

Ye Yuan, Youhong Xiao, Qiannan Xu, Huabing Lu, Yuchong Liu

{"title":"A characteristic non-reflective boundary for low Mach number flow-induced noise.","authors":"Ye Yuan, Youhong Xiao, Qiannan Xu, Huabing Lu, Yuchong Liu","doi":"10.1121/10.0037076","DOIUrl":"https://doi.org/10.1121/10.0037076","url":null,"abstract":"Characteristic boundary conditions are widely used to simulate compressible flow-induced noise. This study extends the application to incompressible flow-induced noise by introducing a low Mach number characteristic boundary condition (LMCBC) to eliminate sound wave reflections at boundaries. This boundary condition is derived from the second type of acoustic perturbation equations (APE-2) and implemented within the open-source software OpenFOAM (OpenCFD Ltd, Bracknell, Berkshire, UK). The flow field is computed using the incompressible Navier-Stokes equations, and APE-2 predicts the acoustic field. The accuracy and robustness of the coupled solver and the new boundary condition are validated through multiple benchmark problems. Plane-wave test cases are then used to compare the non-reflection performance of LMCBC, perfectly matched layers (PML), and damping layers under varying incidence angles and Mach numbers. To further improve performance, LMCBC is combined with PML to form PLMCBC, and a zonal low Mach number characteristic boundary condition (ZLMCBC) is proposed by gradually attenuating characteristic waves within a buffer zone. Both extended schemes exhibit enhanced non-reflective performance for low Mach number flows (Ma= 0-0.3), with ZLMCBC achieving the lowest reflection levels and the reduced sensitivity to wavelength variations within the tested range.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":"158 1","pages":"529-547"},"PeriodicalIF":2.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144659505","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Tonal noise optimization of propeller using a steady adjoint methoda). 基于稳定伴随法的螺旋桨噪声优化研究。

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-07-01 DOI: 10.1121/10.0037217

Luca Abergo, Beckett Y Zhou, Alberto Guardone

{"title":"Tonal noise optimization of propeller using a steady adjoint methoda).","authors":"Luca Abergo, Beckett Y Zhou, Alberto Guardone","doi":"10.1121/10.0037217","DOIUrl":"https://doi.org/10.1121/10.0037217","url":null,"abstract":"This paper presents an efficient optimization framework for reducing tonal noise generated by an isolated propeller, targeting applications in urban air mobility. The approach couples the Ffowcs-Williams-Hawkings (FWH) acoustic analogy with the Reynolds-averaged Navier-Stokes (RANS) equations, solved via the open-source su2 solver in a rotating reference frame (RRF). This steady formulation circumvents the need for unsteady simulations, enabling significant computational savings. Acoustic pressure fluctuations are propagated to the far field using the FWH formulation, and the tonal sound pressure level perceived by multiple observers serves as the objective function for optimization. A discrete adjoint solver, constructed via algorithmic differentiation, is employed to compute the sensitivities of the coupled RANS-FWH approach. The resulting sensitivity map provides detailed insights into the noise-generation mechanisms and serves as an effective gradient for driving automatic shape optimization. The proposed methodology inherently targets steady noise components: thickness noise and steady loading. Nevertheless, in the presented forward flight test case, the tonal noise predicted using RRF closely matches that from a time-resolved simulation, confirming the suitability of the approach for tonal noise optimization. The optimization yields a 3-dB reduction in upstream SPL while preserving the required thrust level. Furthermore, the optimizer consistently identifies the blade tip as a critical region.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":"158 1","pages":"651-662"},"PeriodicalIF":2.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144690629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Observation of the dispersion-relation of T waves propagating as modes using ocean bottom distributed acoustic sensing. 利用海底分布声传感观测T波模态传播的频散关系。

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-07-01 DOI: 10.1121/10.0037221

Jean Lecoulant, Samuel Pinson

{"title":"Observation of the dispersion-relation of T waves propagating as modes using ocean bottom distributed acoustic sensing.","authors":"Jean Lecoulant, Samuel Pinson","doi":"10.1121/10.0037221","DOIUrl":"https://doi.org/10.1121/10.0037221","url":null,"abstract":"Ocean-bottom distributed acoustic sensing (DAS) can measure strain induced by seismo-acoustic waves. Among them, T waves travel in the water column at the speed of sound and are expected to propagate as modes. DAS dense time and space sampling gives access to dispersion curves in the frequency-wavenumber domain. In DAS data acquired by the Ocean Observatory Initiative on Oregon shore, Scholte waves dominate the 0.1-1.5 Hz frequency band. We identify a cable section where Scholte-wave energy forms marked power-law shape regions in the frequency-wavenumber domain. We use these dispersion curves for deterministic inversion of a power-law shear-speed profile and of a constant seabed density based on an analytic model. We focus on T waves from a regional earthquake in the 2-30 Hz frequency band. Far offshore, the dispersion curves of four T-wave modes are visible, but only one mode is visible where seabed inversion is possible. This T-wave mode is used for compressional-wave speed inversion based on analytical modes in a fluid-fluid-solid waveguide and using seabed density from Scholte-wave inversion. We discuss the differences between theoretical modes in a fluid-fluid-solid waveguide and in a fluid-solid-solid waveguide with a sediment shear-speed lower than the ocean sound speed.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":"158 1","pages":"723-731"},"PeriodicalIF":2.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144698935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

On broadband absorption in a fractal chirped porous material using a smaller amount of material: Estimates to normal and random incidence. 使用少量材料的分形啁啾多孔材料中的宽带吸收：对正态和随机入射的估计。

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-07-01 DOI: 10.1121/10.0037083

Gildean do N Almeida, Ricardo Brum, Erasmo F Vergara, Arcanjo Lenzi

{"title":"On broadband absorption in a fractal chirped porous material using a smaller amount of material: Estimates to normal and random incidence.","authors":"Gildean do N Almeida, Ricardo Brum, Erasmo F Vergara, Arcanjo Lenzi","doi":"10.1121/10.0037083","DOIUrl":"https://doi.org/10.1121/10.0037083","url":null,"abstract":"Designing broadband sound absorption devices using a smaller amount of porous material is of great importance for practical applications: for example, in the civil aviation sector. In this context, this paper proposes a chirped porous material based on the Cantor fractal, and the performance of the absorber is estimated under normal and random wave incidence. For normal incidence and using the transfer matrix method with the Johnson-Champoux-Allard-Lafarge model, and through numerical simulations and experimental tests, this paper demonstrates that the proposed absorber with increasing infinite complexity maintains an average sound absorption (Qα) greater than 90% in a wide frequency range (100-6400 Hz). To achieve these results, the initial generation of the fractal structure must be composed of porous materials with different flow resistivity (σfi), i.e., σf1>σf2. Furthermore, based on the concept of radiation impedance and the first empirical London model, this paper proves that for random incidence, the absorber maintains a behavior similar to that observed for normal incidence up to the second iteration of the structure. Therefore, this study suggests that the Cantor fractal pattern allows the development of broadband sound absorbers that consider a smaller amount of porous material in their design.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":"158 1","pages":"16-27"},"PeriodicalIF":2.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144540627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Enhancing speech separation performance utilizing various wavelet coefficients. 利用不同的小波系数增强语音分离性能。

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-07-01 DOI: 10.1121/10.0037082

Rawad Melhem, Oumayma Al Dakkak, Assef Jafar

{"title":"Enhancing speech separation performance utilizing various wavelet coefficients.","authors":"Rawad Melhem, Oumayma Al Dakkak, Assef Jafar","doi":"10.1121/10.0037082","DOIUrl":"https://doi.org/10.1121/10.0037082","url":null,"abstract":"This study explores the efficacy of wavelet coefficients in improving speech separation models for real-world scenarios, in which performance often degrades compared to ideal conditions. Feature distortion in practical environments hampers speaker discrimination, driving the quest for more robust features beyond traditional inputs. Whereas wavelet transform (WT) is typically employed in classification tasks, this research uncovers its potential in speech separation. By integrating discrete wavelet and wavelet packets during model training, the study evaluates the impact of WT on enhancing speech separation applications. Additionally, it addresses the challenge of incorporating wavelet scattering (WS), known for lacking an exact inverse transform, into speech separation tasks. To overcome this limitation, wavelet scattering coefficients are integrated into the loss function, expanding its utility. Results demonstrate the superior performance and resilience of wavelet-based models in noisy conditions. Particularly, integrating WS coefficients enhances separation accuracy, surpassing other methods in key metrics, such as scale invariant-signal to distortion ratio, mean opinion score, and short time objective intelligibility, establishing wavelet coefficients as state-of-the-art solutions for speech separation in challenging acoustic environments.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":"158 1","pages":"201-209"},"PeriodicalIF":2.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144584213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Spectral weights for localization and speech-in-speech recognition with spatial separation of talkers on the horizontal plane. 基于话务员在水平面上的空间分离的定位和语音识别的频谱权值。

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-07-01 DOI: 10.1121/10.0037072

Emily Buss, Richard Freyman

{"title":"Spectral weights for localization and speech-in-speech recognition with spatial separation of talkers on the horizontal plane.","authors":"Emily Buss, Richard Freyman","doi":"10.1121/10.0037072","DOIUrl":"https://doi.org/10.1121/10.0037072","url":null,"abstract":"Some previous research has suggested that sound source localization may not rely on the same cues that support the segregation of speech produced by talkers separated in space. The present experiments evaluated spectral weights for the spatial cues underlying these two tasks by filtering stimuli into 1-octave-wide bands and dispersing them on the horizontal plane. Target stimuli were 100-ms bursts of speech-shaped noise or words produced by 24 male and female talkers, and maskers (when present) were sequences of words. For localization in quiet, weights differed depending on the midpoint and band dispersion range, but they were similar for speech and noise stimuli. For bands dispersed between -15° and +15°, weights peaked at 500 and 1000 Hz. Introducing a speech masker changed the magnitude of weights for localization, but not the relative weight by frequency. For speech-in-speech recognition, sequences of masker words produced predominantly informational masking, such that participants had to rely on spatial cues to segregate the target. As for localization, recognition appeared to rely predominantly on spatial cues in the 500- and 1000-Hz bands. Trial-by-trial data suggest that correct word recognition relied on differences in perceived location of target and masker speech for some but not for all participants.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":"158 1","pages":"186-200"},"PeriodicalIF":2.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144584216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Effect of speaker variability on tone perception for L2 learners: Perspectives of machine learning. 说话人变化对二语学习者声调感知的影响：机器学习的视角。

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-07-01 DOI: 10.1121/10.0037073

Hui Zhang, Zizhu Wang, Weitong Liu

{"title":"Effect of speaker variability on tone perception for L2 learners: Perspectives of machine learning.","authors":"Hui Zhang, Zizhu Wang, Weitong Liu","doi":"10.1121/10.0037073","DOIUrl":"https://doi.org/10.1121/10.0037073","url":null,"abstract":"Mandarin tones 2 and 3 share similar acoustic characteristics, posing a challenge for L2 learners to distinguish. This difficulty is further compounded by both inter- and intra-speaker variability. This study employed machine learning methods to examine the effectiveness of eight acoustic cues for tone 2 and tone 3 classification in speech that were produced by 20 speakers under normal and loud speaking modes (experiment 1). Additionally, we compared the perception between native listeners and medium-to-advanced Thai L2 learners of Mandarin, including perceptual accuracy, cue-weighting strategies, and perceptual space (experiment 2). Results of experiment 1 show that temporal cues are more effective than height-related cues for tone 2 and tone 3 classifications in speech with inter- and intra- speaker variability. In experiment 2, medium-to-advanced Thai L2 learners produced more confusions than native listeners. The ranking of perceptual acoustic cues is generally similar to native listeners, suggesting that these L2 learners have generally mastered the correct cue-weighting strategy for distinguishing between tones 2 and 3. Additional analyses showed that the confusion stems from learners' perceptual biases. Specifically, learners allocate narrower space for tone 3 category than native listeners, with atypical tone 3 exemplars being misidentified as tone 2.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":"158 1","pages":"391-406"},"PeriodicalIF":2.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144637410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

The role of accelerometer hardware limitations in focal caller identification from acoustic recording tags attached to mysticetes. 加速度计硬件的作用限制在焦点呼叫识别从声学记录标签附着在神秘的。

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-07-01 DOI: 10.1121/10.0037198

Julia R G Dombroski, John Calambokidis, Douglas Gillespie, Ana Širović, Susan E Parks

{"title":"The role of accelerometer hardware limitations in focal caller identification from acoustic recording tags attached to mysticetes.","authors":"Julia R G Dombroski, John Calambokidis, Douglas Gillespie, Ana Širović, Susan E Parks","doi":"10.1121/10.0037198","DOIUrl":"https://doi.org/10.1121/10.0037198","url":null,"abstract":"Multi-sensor acoustic tags have revolutionized our understanding of the behavior of large whales. One limitation, however, is the inability to reliably distinguish calls produced by the tagged whale from those produced by other nearby whales. One proposed solution has been to detect calls using both hydrophone and accelerometer data to identify signals produced by the tagged animal. Some high-amplitude low-frequency calls can be detected with accelerometers, but the success in using this approach with all calls within and across species is variable. Here, we provide guidance on the role of the physics of sound propagation and the tag hardware's accelerometer capabilities for successful application of this method with examples from tag data collected from fin whales (Balaenoptera physalus), blue whales (B. musculus), and southern right whales (Eubalaena australis). Of 1190 high amplitude calls believed to likely be from the tagged animal, only 517 were also detected on the accelerometer. Reasons for lack of detection were primarily the frequency of the signal lying outside the usable frequency detection range of the accelerometer on the tag, indicating selection of appropriate hardware capabilities are critical for this approach.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":"158 1","pages":"548-556"},"PeriodicalIF":2.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144659506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Magnetoelastic softening in cold-sprayed polycrystalline nickel studied by resonant ultrasound spectroscopy. 用共振超声光谱法研究冷喷涂多晶镍的磁弹性软化。

IF 2.1 2区物理与天体物理

Journal of the Acoustical Society of America Pub Date : 2025-07-01 DOI: 10.1121/10.0037224

M Janovská, P Sedlák, M Ševčík, J Cizek, J Kondas, R Singh, J Čupera, H Seiner

{"title":"Magnetoelastic softening in cold-sprayed polycrystalline nickel studied by resonant ultrasound spectroscopy.","authors":"M Janovská, P Sedlák, M Ševčík, J Cizek, J Kondas, R Singh, J Čupera, H Seiner","doi":"10.1121/10.0037224","DOIUrl":"https://doi.org/10.1121/10.0037224","url":null,"abstract":"Cold-sprayed metallic deposits are additively manufactured materials containing high levels of compressive residual stress. Here, we show that the presence and intensity of this stress can be analyzed using laser-ultrasonics, provided that the sprayed material is ferromagnetic and magnetostrictive, as in the case of pure nickel. Contactless resonant ultrasound spectroscopy is used to monitor the evolution of shear modulus and internal friction parameter of two polycrystalline Ni deposits with temperature over the Curie point, which enables a direct assessment of the strength of magnetoelastic softening that is known to be strongly stress-dependent. In addition, the proposed methodology is also shown to be suitable for in situ observation of the recrystallization process in the vicinity of the Curie point, as well as inspecting the homogeneity of the residual stress level across the thickness of the cold-sprayed deposit. Finally, a methodology for room temperature probing of the magnetoelastic coupling is proposed and tested on the examined materials.","PeriodicalId":17168,"journal":{"name":"Journal of the Acoustical Society of America","volume":"158 1","pages":"732-742"},"PeriodicalIF":2.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144698929","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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