Monitoring Water Level of a Surficial Aquifer Using Distributed Acoustic Sensing and Ballistic Surface Waves by Valeriia Sobolevskaia, Jonathan Ajo‐Franklin, Feng Cheng, Shan Dou, Nathaniel J. Lindsey, Anna Wagner

“…In this study, we demonstrate how Rayleigh wave velocity variation can be used as a direct indicator of changes in the water level of a surficial aquifer in a discontinuous permafrost environment. …”
Get full text

Physics-Guided Self-Supervised Learning Full Waveform Inversion with Pretraining on Simultaneous Source by Qiqi Zheng, Meng Li, Bangyu Wu

“…The time-domain 2D acoustic wave equation serves as the physical constraint in this self-supervised framework. …”
Get full text

Giant Undulations Driven by Pitch‐Angle Scattering of Time Domain Structures Modulated by Plasmapause Surface Wave by Yi‐Jia Zhou, Pei‐Heng Du, Jian Liu, Quan‐Qi Shi, Meng‐Dan Guo, Fei He, Xiao‐Xin Zhang, Yong‐Liang Zhang, Zhong‐Hua Yao, Jun Zhong, Zhaojin Rong, Yong Wei

“…Abstract Plasmapause surface waves (PSWs) near the plasmapause boundary are regarded to be the magnetospheric source of ionospheric auroral giant undulations (GUs) located at the equatorward boundary of diffuse aurora. …”
Get full text

Experimental Study of an Efficient, High Power and Tunable Continuous-Wave CO₂ Laser by Lijie Geng, Shuaifei Song, Kun Yang, Pengji Yan, Zhenxiang Fu, Yanchen Qu, Ruiliang Zhang, Zhifeng Zhang

“…The tunable CO₂ laser is a common pump source for optically pumped terahertz lasers. In this paper, based on a sealed-off CO₂ laser tube and a grating-tuned cavity, we reported an efficient, high-power, low-cost, simple structure and tunable continuous-wave CO₂ laser. …”
Get full text

Acoustic two-dimensional scattering from cylinders using the method of source simulation technique by P.H. T. Zannin

“…In this work the Method of Source Simulation Technique was used to calculate the scattering of a plane wave by a circular cylinder with random distribution of the surface impedance. …”
Get full text

Precursory velocity changes prior to the 2019 paroxysms at Stromboli volcano, Italy, from coda wave interferometry by Alexander Yates, Corentin Caudron, Aurélien Mordret, Philippe Lesage, Andrea Cannata, Flavio Cannavo, Thomas Lecocq, Virginie Pinel, Lucia Zaccarelli

“…These findings illustrate how coda wave interferometry can provide meaningful insights into the evolving dynamics of open-conduit basaltic volcanoes.…”
Get full text

Research on the method and technology of locating dynamic stray current interference sources in rail transit by GU Chengyu, XIONG Xianghong, SU Lei, TONG Xianliang, LI Feng, HONG Zijie

“…In the current study, a dynamic model of stray current sources was established according to the traction characteristics of the DC traction system for rail transit, and an algorithm to position underground stray current sources was proposed based on the propagation law of electromagnetic wave on the ground. …”
Get full text

Research on Characteristics of Directional Impulse Sound Sources in a U-shape Connected Well by Zhang Jing, Zhang Peng

“…In order to increase the detection distance and ensure precise communication between the two wells, a new type of acoustic wave connection technology based on the impulse sound source was proposed in this paper. …”
Get full text

Analysis and Simulation of Overmodulation Modes of a Three-Inverter Block of the Photovoltaic Installation by Oleschuk V.

Get full text

A Comparison of Mine Seismic Discriminators Based on Features of Source Parameters to Waveform Characteristics by Ju Ma, Guoyan Zhao, Longjun Dong, Guanghui Chen, Chuxuan Zhang

“…To find efficient methods for classifying mine seismic events, two features extraction approaches were proposed. Features of source parameters including the seismic moment, the seismic energy, the energy ratio of S- to P-wave, the static stress drop, time of occurrence, and the number of triggers were selected, counted, and analyzed in approach I. …”
Get full text

Characterization of Acoustic Source Signal Response in Oxidized Autocombusted Coal Temperature Inversion Experiments by Jun Guo, Wenjing Gao, Yin Liu, Guobin Cai, Kaixuan Wang

“…The measurement error of sound travel time, one of the most critical parameters in acoustic temperature measurement, is significantly affected by the type of sound source signal. In order to select more appropriate sound source signals, a sound source signal preference study of loose coal acoustic temperature measurement was performed and is described herein. …”
Get full text

Source faulting properties of the 2021 MS 6.4 Yangbi, China, earthquake sequence by Xiangyun Guo, Xu Zhang, Lihua Fang, Dahu Li, Lei Yi

“…Focal mechanisms of M ≥ 2.0 events in this earthquake sequence are determined using P wave first-motion polarity plus S/P amplitude ratio data from local short-period and broadband seismic stations. …”
Get full text

A bright polarization-entangled photon pair source based on silicon photonics integration by Xin Hua, Xu Yan, Lu Xu, Ying Zhu, Min Liu, Jie Yan, Daigao Chen, Hongguang Zhang, Xi Xiao

“…Developing a high-quality, bright source of polarization-entangled photon pairs on CMOS-compatible integrated platforms, such as silicon or silicon nitride, remains a significant challenge. …”
Get full text

Challenges for Fast Radio Bursts as Multimessenger Sources from Binary Neutron Star Mergers by Mohit Bhardwaj, Antonella Palmese, Ignacio Magaña Hernandez, Virginia D’Emilio, Soichiro Morisaki

“…Fast radio bursts (FRBs) are millisecond-duration transients from extragalactic sources, with their origins remaining a topic of active debate. …”
Get full text

Detection of Seismic and Acoustic Sources Using Distributed Acoustic Sensing Technology in the Gulf of Catania by Abdelghani Idrissi, Danilo Bonanno, Letizia S. Di Mauro, Dídac Diego-Tortosa, Clara Gómez-García, Stephan Ker, Florian Le Pape, Shane Murphy, Sara Pulvirenti, Giorgio Riccobene, Simone Sanfilippo, Salvatore Viola

Get full text

Progress of the Impact of the Qinghai-Xizang Plateau Heat Sources on Climate Anomalies in Drylands of China by Hongyu LUO, Haipeng YU, Zeyong HU, Yaoxian YANG, Ying CAI, Lianglei GU, Weiwei FAN, Chunwei FU, Di WU, Guantian WANG

“…The heat source of the Qinghai-Xizang Plateau not only strengthens the formation and maintenance of the climate background in drylands of China， but also has a significant impact on the climate anomalies there.A deep understanding of the relationship between Qinghai-Xizang Plateau heat source variety and climate anomalies in drylands of China is of great significance for maintaining ecological security， preventing major meteorological disasters and promoting regional sustainable development.This paper reviews and combs the current relevant research on the impact of Qinghai-Xizang Plateau heat sources on climate anomalies in drylands of China， including the climate characteristics of Qinghai-Xizang Plateau heat sources， the impact of Qinghai-Xizang Plateau heat sources on climate anomalies in drylands of China， and the prediction function of Qinghai-Xizang Plateau heat sources’ early signals on climate anomalies in drylands of China.Previous studies have shown that the temporal and spatial distribution characteristics of Qinghai-Xizang Plateau heat sources have significant discrepancy of seasonality， regionality and time stages.By regulating the circulation systems such as the meridional circulation on the northern side of Qinghai-Xizang Plateau， South Asian high， westerly jet and zonal planetary wave， it has an impact on the climate anomalies in drylands of China； At the same time， the Qinghai-Xizang Plateau snow and frozen soil change the surface energy balance and soil water and heat transfer through the land surface process， and affect the Qinghai-Xizang Plateau heat source， which can be used as the early signal for the prediction of summer precipitation in drylands of China.Finally， based on the summarizing of previous research progress and achievements， the future research direction of the impact of Qinghai-Xizang Plateau heat sources on climate anomalies in drylands of China is prospected.Under the background of global warming， there is still great uncertainty in the temporal and spatial variation law of Qinghai-Xizang Plateau heat sources.At present， the way of Qinghai-Xizang Plateau heat source affecting climate anomalies in drylands of China is not comprehensive， and the internal influence mechanism between them still needs to be further studied.…”
Get full text

Identification of Students’ Conceptual Understanding of Sound Wave Materials through the Contextual Teaching and Learning (CTL) Model by Sinta Oktaviana, Himawan Putranta

“…Data were collected through a conceptual understanding test covering subtopics of sound waves such as definitions, properties, string sound sources, organ pipe sound sources, resonance, the Doppler effect, wave interference, intensity, and sound intensity level. …”
Get full text

Constraints on Primordial Black Holes from Neff: Scalar-induced Gravitational Waves as an Extra Radiation Component by Jing-Zhi Zhou, Yu-Ting Kuang, Zhe Chang, H. Lü

“…In 2023 June, multiple pulsar timing array collaborations provided evidence for the existence of a stochastic gravitational-wave background. Scalar-induced gravitational waves (SIGWs), as one of the most likely sources of stochastic gravitational waves, have received widespread attention. …”
Get full text

Type-I two-Higgs-doublet model and gravitational waves from domain walls bounded by strings by Bowen Fu, Anish Ghoshal, Stephen F. King, Moinul Hossain Rahat

“…The decay of this defect network leads to a unique gravitational wave signal spanning many orders in observable frequencies, that can be distinguished from signals generated by other sources. …”
Get full text

Prospects for detection of ultra high frequency gravitational waves from compact binary coalescences with resonant cavities by Aurélien Barrau, Juan García-Bellido, Thierry Grenet, Killian Martineau

“…Abstract This article aims at clarifying the situation about astrophysical sources that might be observed with haloscope experiments sensitive to gravitational waves in the 1–10 GHz band. …”
Get full text