Results 171 to 180 of about 7,779 (257)
ABSTRACT A conjugate operator pair is introduced for wave‐equation Kirchhoff modelling and migration, formulated as time‐space partial differential equations. The operator pair allows for iterative linearized waveform inversion and supports the reconstruction of angle‐dependent reflectivity images. The proposed forward modelling operator represents the
Wei Zhang, Mauricio D. Sacchi
wiley +1 more source
Sonoluminescence from single cavitation bubbles near solid surfaces. [PDF]
Mur J, Petkovsek R, Ohl CD.
europepmc +1 more source
Production Gaps Among Farmers With Disabilities Are Associated With Limited Technology
ABSTRACT In sub‐Saharan Africa, agriculture is vital; however, the systematic exclusion of persons with disabilities from farming hinders sustainable development and social equity. Although several studies have analyzed productivity differentials across various dimensions of social exclusion, empirical evidence on technology access, farming efficiency,
Francis Tsiboe +2 more
wiley +1 more source
Quantitative Residual Stress Analysis in Steel Structures Using EMAT Nonlinear Acoustics. [PDF]
Balasubramaniam K +2 more
europepmc +1 more source
Unraveling the Source Locations of Short‐Period Secondary Microseisms
Abstract Primary and secondary microseisms are generated by ocean wave interactions, with the latter occasionally split into short‐ and long‐period bands in some regions. The short‐period secondary microseism (SPSM) sources have traditionally been associated with nearby coastal segments, suggesting a more uniform distribution across shorelines.
Samuel Jorde +6 more
wiley +1 more source
Seismic Isolation Performance of Seismic Metamaterials Based on Embedded Dual-Resonator Coupled Auxetic Materials. [PDF]
Zhang L +6 more
europepmc +1 more source
Abstract We employ passive seismic interferometry to study seismic hydrological responses in a snowmelt‐driven, semi‐arid catchment. Seismic velocity changes (dv/v) at 2–4 Hz and 4–8 Hz are analyzed from six stations along a hillslope transect between May and November 2023 and compared to precipitation, soil moisture, and groundwater level timeseries ...
Kuan‐Fu Feng +5 more
wiley +1 more source
Profiling Long-Distance Urban Near-Surface Structures with Temporary Fiber-Optic Sensing in Jinan City, China. [PDF]
Chang L +6 more
europepmc +1 more source
Abstract Global Navigation Satellite Systems (GNSS) provide continuous measurements of zenith wet delay (ZWD), reflecting column‐integrated atmospheric water vapor. While the slowly varying ZWD is routinely assimilated in numerical weather prediction, the rapid fluctuations on timescales of seconds to minutes that arise from boundary‐layer turbulence ...
Gaël Kermarrec +3 more
wiley +1 more source
Stability of a Compressed Bar Resting on an Elastic Substrate with Stepwise Changes in Parameters. [PDF]
Sadowski M, Marcinowski J, Sakharov V.
europepmc +1 more source

