Differential radar interferometry (DInSAR) has been used more and more widely to monitor crustal deformations due to underground mining and oil extraction, earthquakes, volcanoes, landslides, and so on. However, tropospheric heterogeneities have been identified as one of the major errors in DInSAR, which can be up to 40cm as derived from dual-frequency GPS measurements in the example given in t...

The need to account for the inefficient geographic information exchange between different groups of people (different domains and cultures) due to semantic heterogeneity, as well as to provide interoperability between geographic information systems, has directed Geographic Information (GI) Science towards ontological research (Mark et al., online). The role of ontology, from the philosophical, ...

When elastic materials are anisotropically deformed, heterogeneities in stiffness generally produce long-range density variations. The effect is particularly enhanced in swollen gels. We calculate the structure factor from such frozen density deviations under general alline deformations. It is maximized in the most stretched direction, whereas that from the thermal fluctuations is minimized in ...

An important application of borehole acoustic logging is the determination of formation permeability using Stoneley waves. Heterogeneous permeable structures, such as fractures, sand-shale sequences, etc., are commonly encountered in acoustic logging. The purpose of this study is to investigate the effects of the permeability heterogeneities on the borehole Stoneley wave propagation, We have st...

We investigate the dynamics of nanoscale droplets in the vicinity of chemical steps which separate parts of a substrate with different wettabilities. Due to long-ranged dispersion forces, nanodroplets positioned on one side of the step perceive the different character of the other side even at a finite distance from the step, leading to a dynamic response. The direction of the ensuing motion of...

Prior numerical modelling studies show that atmospheric dispersion is sensitive to surface heterogeneities, but past studies do not consider the impact of a realistic distribution of surface heterogeneities on mesoscale atmospheric dispersion. While these focussed on dispersion in the convective boundary layer, the present work also considers dispersion in the nocturnal boundary layer and above...

Analysis of transcription at the level of single cells in prokaryotes and eukaryotes has revealed the existence of heterogeneities in the expression of individual genes within genetically homogeneous populations. This variation is an emerging hallmark of populations of Embryonic Stem (ES) cells and has been ascribed to the stochasticity associated with the biochemical events that mediate gene e...

Indian states are immensely heterogeneous in terms of their socioeconomic activities. The economic structure India is consequently bifurcated too. This study examines, under given heterogeneities, whether credit accessibility among converges over time, particularly industrial and agricultural lending. We employ the concept club convergence find that substantial heterogeneities multiple transiti...

Geochemical reaction rate laws are often measured using crushed minerals in well-mixed laboratory systems that are designed to eliminate mass transport limitations. Such rate laws are often used directly in reactive transport models to predict the reaction and transport of chemical species in consolidated porous media found in subsurface environments. Due to the inherent heterogeneities of poro...