- Seismic Imaging and Inversion Techniques
- earthquake and tectonic studies
- Seismic Waves and Analysis
- High-pressure geophysics and materials
- Seismic Performance and Analysis
- Geophysics and Sensor Technology
- Synthesis and biological activity
- Earthquake Detection and Analysis
- Geological and Geochemical Analysis
- Geological and Geophysical Studies
- Structural Health Monitoring Techniques
- Seismology and Earthquake Studies
- Geophysics and Gravity Measurements
- Metal complexes synthesis and properties
- Synthesis and Biological Evaluation
- Ionosphere and magnetosphere dynamics
- Cancer therapeutics and mechanisms
- Hydraulic Fracturing and Reservoir Analysis
- Geophysical and Geoelectrical Methods
- Superconducting Materials and Applications
- Geological and Geophysical Studies Worldwide
- Fungal Plant Pathogen Control
- Flow Measurement and Analysis
- Solar and Space Plasma Dynamics
- Landslides and related hazards
Indian Institute of Technology Dhanbad
2019-2024
KR Mangalam University
2024
Baylor University
2014-2019
Seismic velocity models are found, along with uncertainty estimates, for 11 sites in the Middle East by jointly modelling Ps and Sp receiver functions surface (Rayleigh) wave group dispersion. The approach performs a search that satisfy goodness-of-fit criteria guided variant of simulated annealing uses statistical tools to assess these products searches. These tools, parameter correlation matrix marginal posterior probability density (PPD) function, allow us evaluate quantitatively...
Abstract The seismic velocity structure beneath Texas Gulf Coastal Plain (GCP) is imaged by migrating Ps receiver functions with a model found fitting surface wave dispersion. We use data from linear array of 22 broadband stations, spaced 16–20 km apart. A Common Conversion Point (CCP) stacking technique applied to earthquake improve the S/N ratios functions. Using an incorrect for depth migration stacked CCP image may produce inaccurate subsurface. To find sufficiently accurate P and...
SUMMARY The northeastern Indian region is characterized by complex lithospheric structure that developed due to collision between the and Eurasian tectonic plates, in north, subduction beneath Burmese arc, east. We report results from joint modelling of Ps Sp receiver functions Rayleigh wave group velocity dispersion curves which a broad search for acceptable models performed via simulated annealing. identify three domains, Shillong plateau, Brahmaputra valley Indo-Burma convergence zone...
Abstract We develop and apply a technique for receiver functions that is analogous to “velocity analysis” in seismic reflection processing, which velocity model found directly from the data. In case of functions, represent waves converted P type S ( Ps ) or Sp rather than reflected waves, we jointly optimize average correlation value target features common gathers while perturbing shear wave velocities Poisson's ratio process driven by simulated annealing. The simultaneously finds depths...
Abstract Two series of C‐Mannich base derivatives were synthesized and evaluated through the reaction formaldehyde, two thiazolo‐pyrimidine compounds, various 2°‐amines. The chemical structures inherent properties compounds authenticated using a variety spectroscopic techniques. aseptic bactericidal potential was assessed alongside five common bacterial microbes, with Ampicillin employed as reference drug. Compounds 9b 9d demonstrated comparable antibacterial activity to ampicillin against...
Abstract The Caribbean Island of Hispaniola resulted from plate convergence that brought together distinct terranes and may include one or more active microplates. These processes have seismically anisotropic materials to the island created structures through deformation. Our goal is identify model interfaces bound media and/or dipping between isotropic layers beneath assess implications our results for region's tectonics. We perform harmonic decomposition receiver function gathers 17...
Summary Shear wave velocity and site amplification study play vital role to reduce the effect of triggered natural earthquakes disasters. Our area comes in moderate low seismic zone India size due mine activity complex geological settings. To these calamities we have acquired microtremor data a linear array 2 Km profile length at spacing 250 m. HVSR curves which is computed by Fourier transform data, used estimate shear structure. The estimated inversion curve using Monte-Carlo (MC)...